diff options
Diffstat (limited to 'Documentation')
249 files changed, 13327 insertions, 2960 deletions
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index 559d5f9ebf..c6e536f180 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -1,5 +1,5 @@ Like other projects, we also have some guidelines to keep to the -code. For Git in general, three rough rules are: +code. For Git in general, a few rough rules are: - Most importantly, we never say "It's in POSIX; we'll happily ignore your needs should your system not conform to it." @@ -18,6 +18,14 @@ code. For Git in general, three rough rules are: judgement call, the decision based more on real world constraints people face than what the paper standard says. + - Fixing style violations while working on a real change as a + preparatory clean-up step is good, but otherwise avoid useless code + churn for the sake of conforming to the style. + + "Once it _is_ in the tree, it's not really worth the patch noise to + go and fix it up." + Cf. http://article.gmane.org/gmane.linux.kernel/943020 + Make your code readable and sensible, and don't try to be clever. As for more concrete guidelines, just imitate the existing code @@ -34,7 +42,17 @@ For shell scripts specifically (not exhaustive): - We use tabs for indentation. - - Case arms are indented at the same depth as case and esac lines. + - Case arms are indented at the same depth as case and esac lines, + like this: + + case "$variable" in + pattern1) + do this + ;; + pattern2) + do that + ;; + esac - Redirection operators should be written with space before, but no space after them. In other words, write 'echo test >"$file"' @@ -43,6 +61,14 @@ For shell scripts specifically (not exhaustive): redirection target in a variable (as shown above), our code does so because some versions of bash issue a warning without the quotes. + (incorrect) + cat hello > world < universe + echo hello >$world + + (correct) + cat hello >world <universe + echo hello >"$world" + - We prefer $( ... ) for command substitution; unlike ``, it properly nests. It should have been the way Bourne spelled it from day one, but unfortunately isn't. @@ -81,23 +107,42 @@ For shell scripts specifically (not exhaustive): "then" should be on the next line for if statements, and "do" should be on the next line for "while" and "for". + (incorrect) + if test -f hello; then + do this + fi + + (correct) + if test -f hello + then + do this + fi + - We prefer "test" over "[ ... ]". - We do not write the noiseword "function" in front of shell functions. - - We prefer a space between the function name and the parentheses. The - opening "{" should also be on the same line. - E.g.: my_function () { + - We prefer a space between the function name and the parentheses, + and no space inside the parentheses. The opening "{" should also + be on the same line. + + (incorrect) + my_function(){ + ... + + (correct) + my_function () { + ... - As to use of grep, stick to a subset of BRE (namely, no \{m,n\}, - [::], [==], nor [..]) for portability. + [::], [==], or [..]) for portability. - We do not use \{m,n\}; - We do not use -E; - - We do not use ? nor + (which are \{0,1\} and \{1,\} + - We do not use ? or + (which are \{0,1\} and \{1,\} respectively in BRE) but that goes without saying as these are ERE elements not BRE (note that \? and \+ are not even part of BRE -- making them accessible from BRE is a GNU extension). @@ -106,6 +151,19 @@ For shell scripts specifically (not exhaustive): interface translatable. See "Marking strings for translation" in po/README. + - We do not write our "test" command with "-a" and "-o" and use "&&" + or "||" to concatenate multiple "test" commands instead, because + the use of "-a/-o" is often error-prone. E.g. + + test -n "$x" -a "$a" = "$b" + + is buggy and breaks when $x is "=", but + + test -n "$x" && test "$a" = "$b" + + does not have such a problem. + + For C programs: - We use tabs to indent, and interpret tabs as taking up to @@ -126,6 +184,17 @@ For C programs: "char * string". This makes it easier to understand code like "char *string, c;". + - Use whitespace around operators and keywords, but not inside + parentheses and not around functions. So: + + while (condition) + func(bar + 1); + + and not: + + while( condition ) + func (bar+1); + - We avoid using braces unnecessarily. I.e. if (bla) { @@ -138,16 +207,116 @@ For C programs: of "else if" statements, it can make sense to add braces to single line blocks. - - We try to avoid assignments inside if(). + - We try to avoid assignments in the condition of an "if" statement. - Try to make your code understandable. You may put comments in, but comments invariably tend to stale out when the code they were describing changes. Often splitting a function into two makes the intention of the code much clearer. + - Multi-line comments include their delimiters on separate lines from + the text. E.g. + + /* + * A very long + * multi-line comment. + */ + + Note however that a comment that explains a translatable string to + translators uses a convention of starting with a magic token + "TRANSLATORS: " immediately after the opening delimiter, even when + it spans multiple lines. We do not add an asterisk at the beginning + of each line, either. E.g. + + /* TRANSLATORS: here is a comment that explains the string + to be translated, that follows immediately after it */ + _("Here is a translatable string explained by the above."); + - Double negation is often harder to understand than no negation at all. + - There are two schools of thought when it comes to comparison, + especially inside a loop. Some people prefer to have the less stable + value on the left hand side and the more stable value on the right hand + side, e.g. if you have a loop that counts variable i down to the + lower bound, + + while (i > lower_bound) { + do something; + i--; + } + + Other people prefer to have the textual order of values match the + actual order of values in their comparison, so that they can + mentally draw a number line from left to right and place these + values in order, i.e. + + while (lower_bound < i) { + do something; + i--; + } + + Both are valid, and we use both. However, the more "stable" the + stable side becomes, the more we tend to prefer the former + (comparison with a constant, "i > 0", is an extreme example). + Just do not mix styles in the same part of the code and mimic + existing styles in the neighbourhood. + + - There are two schools of thought when it comes to splitting a long + logical line into multiple lines. Some people push the second and + subsequent lines far enough to the right with tabs and align them: + + if (the_beginning_of_a_very_long_expression_that_has_to || + span_more_than_a_single_line_of || + the_source_text) { + ... + + while other people prefer to align the second and the subsequent + lines with the column immediately inside the opening parenthesis, + with tabs and spaces, following our "tabstop is always a multiple + of 8" convention: + + if (the_beginning_of_a_very_long_expression_that_has_to || + span_more_than_a_single_line_of || + the_source_text) { + ... + + Both are valid, and we use both. Again, just do not mix styles in + the same part of the code and mimic existing styles in the + neighbourhood. + + - When splitting a long logical line, some people change line before + a binary operator, so that the result looks like a parse tree when + you turn your head 90-degrees counterclockwise: + + if (the_beginning_of_a_very_long_expression_that_has_to + || span_more_than_a_single_line_of_the_source_text) { + + while other people prefer to leave the operator at the end of the + line: + + if (the_beginning_of_a_very_long_expression_that_has_to || + span_more_than_a_single_line_of_the_source_text) { + + Both are valid, but we tend to use the latter more, unless the + expression gets fairly complex, in which case the former tends to + be easier to read. Again, just do not mix styles in the same part + of the code and mimic existing styles in the neighbourhood. + + - When splitting a long logical line, with everything else being + equal, it is preferable to split after the operator at higher + level in the parse tree. That is, this is more preferable: + + if (a_very_long_variable * that_is_used_in + + a_very_long_expression) { + ... + + than + + if (a_very_long_variable * + that_is_used_in + a_very_long_expression) { + ... + - Some clever tricks, like using the !! operator with arithmetic constructs, can be extremely confusing to others. Avoid them, unless there is a compelling reason to use them. @@ -159,9 +328,14 @@ For C programs: - When you come up with an API, document it. - - The first #include in C files, except in platform specific - compat/ implementations, should be git-compat-util.h or another - header file that includes it, such as cache.h or builtin.h. + - The first #include in C files, except in platform specific compat/ + implementations, must be either "git-compat-util.h", "cache.h" or + "builtin.h". You do not have to include more than one of these. + + - A C file must directly include the header files that declare the + functions and the types it uses, except for the functions and types + that are made available to it by including one of the header files + it must include by the previous rule. - If you are planning a new command, consider writing it in shell or perl first, so that changes in semantics can be easily @@ -235,6 +409,38 @@ For Python scripts: documentation for version 2.6 does not mention this prefix, it has been supported since version 2.6.0. +Error Messages + + - Do not end error messages with a full stop. + + - Do not capitalize ("unable to open %s", not "Unable to open %s") + + - Say what the error is first ("cannot open %s", not "%s: cannot open") + + +Externally Visible Names + + - For configuration variable names, follow the existing convention: + + . The section name indicates the affected subsystem. + + . The subsection name, if any, indicates which of an unbounded set + of things to set the value for. + + . The variable name describes the effect of tweaking this knob. + + The section and variable names that consist of multiple words are + formed by concatenating the words without punctuations (e.g. `-`), + and are broken using bumpyCaps in documentation as a hint to the + reader. + + When choosing the variable namespace, do not use variable name for + specifying possibly unbounded set of things, most notably anything + an end user can freely come up with (e.g. branch names). Instead, + use subsection names or variable values, like the existing variable + branch.<name>.description does. + + Writing Documentation: Most (if not all) of the documentation pages are written in the @@ -242,17 +448,31 @@ Writing Documentation: processed into HTML and manpages (e.g. git.html and git.1 in the same directory). + The documentation liberally mixes US and UK English (en_US/UK) + norms for spelling and grammar, which is somewhat unfortunate. + In an ideal world, it would have been better if it consistently + used only one and not the other, and we would have picked en_US + (if you wish to correct the English of some of the existing + documentation, please see the documentation-related advice in the + Documentation/SubmittingPatches file). + Every user-visible change should be reflected in the documentation. The same general rule as for code applies -- imitate the existing - conventions. A few commented examples follow to provide reference - when writing or modifying command usage strings and synopsis sections - in the manual pages: + conventions. + + A few commented examples follow to provide reference when writing or + modifying command usage strings and synopsis sections in the manual + pages: Placeholders are spelled in lowercase and enclosed in angle brackets: <file> --sort=<key> --abbrev[=<n>] + If a placeholder has multiple words, they are separated by dashes: + <new-branch-name> + --template=<template-directory> + Possibility of multiple occurrences is indicated by three dots: <file>... (One or more of <file>.) @@ -269,12 +489,12 @@ Writing Documentation: (Zero or more of <patch>. Note that the dots are inside, not outside the brackets.) - Multiple alternatives are indicated with vertical bar: + Multiple alternatives are indicated with vertical bars: [-q | --quiet] [--utf8 | --no-utf8] Parentheses are used for grouping: - [(<rev>|<range>)...] + [(<rev> | <range>)...] (Any number of either <rev> or <range>. Parens are needed to make it clear that "..." pertains to both <rev> and <range>.) @@ -296,3 +516,29 @@ Writing Documentation: Use 'git' (all lowercase) when talking about commands i.e. something the user would type into a shell and use 'Git' (uppercase first letter) when talking about the version control system and its properties. + + A few commented examples follow to provide reference when writing or + modifying paragraphs or option/command explanations that contain options + or commands: + + Literal examples (e.g. use of command-line options, command names, and + configuration variables) are typeset in monospace, and if you can use + `backticks around word phrases`, do so. + `--pretty=oneline` + `git rev-list` + `remote.pushDefault` + + Word phrases enclosed in `backtick characters` are rendered literally + and will not be further expanded. The use of `backticks` to achieve the + previous rule means that literal examples should not use AsciiDoc + escapes. + Correct: + `--pretty=oneline` + Incorrect: + `\--pretty=oneline` + + If some place in the documentation needs to typeset a command usage + example with inline substitutions, it is fine to use +monospaced and + inline substituted text+ instead of `monospaced literal text`, and with + the former, the part that should not get substituted must be + quoted/escaped. diff --git a/Documentation/Makefile b/Documentation/Makefile index 0cfdc36b44..3e39e2815b 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -2,6 +2,10 @@ MAN1_TXT = MAN5_TXT = MAN7_TXT = +TECH_DOCS = +ARTICLES = +SP_ARTICLES = +OBSOLETE_HTML = MAN1_TXT += $(filter-out \ $(addsuffix .txt, $(ARTICLES) $(SP_ARTICLES)), \ @@ -23,6 +27,7 @@ MAN7_TXT += gitcore-tutorial.txt MAN7_TXT += gitcredentials.txt MAN7_TXT += gitcvs-migration.txt MAN7_TXT += gitdiffcore.txt +MAN7_TXT += giteveryday.txt MAN7_TXT += gitglossary.txt MAN7_TXT += gitnamespaces.txt MAN7_TXT += gitrevisions.txt @@ -34,15 +39,15 @@ MAN_TXT = $(MAN1_TXT) $(MAN5_TXT) $(MAN7_TXT) MAN_XML = $(patsubst %.txt,%.xml,$(MAN_TXT)) MAN_HTML = $(patsubst %.txt,%.html,$(MAN_TXT)) -OBSOLETE_HTML = git-remote-helpers.html +OBSOLETE_HTML += everyday.html +OBSOLETE_HTML += git-remote-helpers.html DOC_HTML = $(MAN_HTML) $(OBSOLETE_HTML) -ARTICLES = howto-index -ARTICLES += everyday +ARTICLES += howto-index ARTICLES += git-tools ARTICLES += git-bisect-lk2009 # with their own formatting rules. -SP_ARTICLES = user-manual +SP_ARTICLES += user-manual SP_ARTICLES += howto/new-command SP_ARTICLES += howto/revert-branch-rebase SP_ARTICLES += howto/using-merge-subtree @@ -53,13 +58,16 @@ SP_ARTICLES += howto/setup-git-server-over-http SP_ARTICLES += howto/separating-topic-branches SP_ARTICLES += howto/revert-a-faulty-merge SP_ARTICLES += howto/recover-corrupted-blob-object +SP_ARTICLES += howto/recover-corrupted-object-harder SP_ARTICLES += howto/rebuild-from-update-hook SP_ARTICLES += howto/rebase-from-internal-branch +SP_ARTICLES += howto/keep-canonical-history-correct SP_ARTICLES += howto/maintain-git API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technical/api-index.txt, $(wildcard technical/api-*.txt))) SP_ARTICLES += $(API_DOCS) -TECH_DOCS = technical/index-format +TECH_DOCS += technical/http-protocol +TECH_DOCS += technical/index-format TECH_DOCS += technical/pack-format TECH_DOCS += technical/pack-heuristics TECH_DOCS += technical/pack-protocol @@ -91,6 +99,13 @@ man7dir = $(mandir)/man7 ASCIIDOC = asciidoc ASCIIDOC_EXTRA = +ASCIIDOC_HTML = xhtml11 +ASCIIDOC_DOCBOOK = docbook +ASCIIDOC_CONF = -f asciidoc.conf +ASCIIDOC_COMMON = $(ASCIIDOC) $(ASCIIDOC_EXTRA) $(ASCIIDOC_CONF) \ + -agit_version=$(GIT_VERSION) +TXT_TO_HTML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_HTML) +TXT_TO_XML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_DOCBOOK) MANPAGE_XSL = manpage-normal.xsl XMLTO = xmlto XMLTO_EXTRA = @@ -103,6 +118,7 @@ MAKEINFO = makeinfo INSTALL_INFO = install-info DOCBOOK2X_TEXI = docbook2x-texi DBLATEX = dblatex +ASCIIDOC_DBLATEX_DIR = /etc/asciidoc/dblatex ifndef PERL_PATH PERL_PATH = /usr/bin/perl endif @@ -297,14 +313,12 @@ clean: $(MAN_HTML): %.html : %.txt asciidoc.conf $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - $(ASCIIDOC) -b xhtml11 -d manpage -f asciidoc.conf \ - $(ASCIIDOC_EXTRA) -agit_version=$(GIT_VERSION) -o $@+ $< && \ + $(TXT_TO_HTML) -d manpage -o $@+ $< && \ mv $@+ $@ $(OBSOLETE_HTML): %.html : %.txto asciidoc.conf $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - $(ASCIIDOC) -b xhtml11 -f asciidoc.conf \ - $(ASCIIDOC_EXTRA) -agit_version=$(GIT_VERSION) -o $@+ $< && \ + $(TXT_TO_HTML) -o $@+ $< && \ mv $@+ $@ manpage-base-url.xsl: manpage-base-url.xsl.in @@ -316,13 +330,12 @@ manpage-base-url.xsl: manpage-base-url.xsl.in %.xml : %.txt asciidoc.conf $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - $(ASCIIDOC) -b docbook -d manpage -f asciidoc.conf \ - $(ASCIIDOC_EXTRA) -agit_version=$(GIT_VERSION) -o $@+ $< && \ + $(TXT_TO_XML) -d manpage -o $@+ $< && \ mv $@+ $@ user-manual.xml: user-manual.txt user-manual.conf $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - $(ASCIIDOC) $(ASCIIDOC_EXTRA) -b docbook -d book -o $@+ $< && \ + $(TXT_TO_XML) -d article -o $@+ $< && \ mv $@+ $@ technical/api-index.txt: technical/api-index-skel.txt \ @@ -331,8 +344,7 @@ technical/api-index.txt: technical/api-index-skel.txt \ technical/%.html: ASCIIDOC_EXTRA += -a git-relative-html-prefix=../ $(patsubst %,%.html,$(API_DOCS) technical/api-index $(TECH_DOCS)): %.html : %.txt asciidoc.conf - $(QUIET_ASCIIDOC)$(ASCIIDOC) -b xhtml11 -f asciidoc.conf \ - $(ASCIIDOC_EXTRA) -agit_version=$(GIT_VERSION) $*.txt + $(QUIET_ASCIIDOC)$(TXT_TO_HTML) $*.txt XSLT = docbook.xsl XSLTOPTS = --xinclude --stringparam html.stylesheet docbook-xsl.css @@ -354,7 +366,7 @@ user-manual.texi: user-manual.xml user-manual.pdf: user-manual.xml $(QUIET_DBLATEX)$(RM) $@+ $@ && \ - $(DBLATEX) -o $@+ -p /etc/asciidoc/dblatex/asciidoc-dblatex.xsl -s /etc/asciidoc/dblatex/asciidoc-dblatex.sty $< && \ + $(DBLATEX) -o $@+ -p $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.xsl -s $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.sty $< && \ mv $@+ $@ gitman.texi: $(MAN_XML) cat-texi.perl @@ -379,14 +391,15 @@ howto-index.txt: howto-index.sh $(wildcard howto/*.txt) mv $@+ $@ $(patsubst %,%.html,$(ARTICLES)) : %.html : %.txt - $(QUIET_ASCIIDOC)$(ASCIIDOC) $(ASCIIDOC_EXTRA) -b xhtml11 $*.txt + $(QUIET_ASCIIDOC)$(TXT_TO_HTML) $*.txt WEBDOC_DEST = /pub/software/scm/git/docs howto/%.html: ASCIIDOC_EXTRA += -a git-relative-html-prefix=../ $(patsubst %.txt,%.html,$(wildcard howto/*.txt)): %.html : %.txt $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - sed -e '1,/^$$/d' $< | $(ASCIIDOC) $(ASCIIDOC_EXTRA) -b xhtml11 - >$@+ && \ + sed -e '1,/^$$/d' $< | \ + $(TXT_TO_HTML) - >$@+ && \ mv $@+ $@ install-webdoc : html diff --git a/Documentation/RelNotes/1.7.11.2.txt b/Documentation/RelNotes/1.7.11.2.txt index a0d24d1270..f0cfd02d6f 100644 --- a/Documentation/RelNotes/1.7.11.2.txt +++ b/Documentation/RelNotes/1.7.11.2.txt @@ -31,7 +31,7 @@ Fixes since v1.7.11.1 * "git diff --no-index" did not work with pagers correctly. * "git diff COPYING HEAD:COPYING" gave a nonsense error message that - claimed that the treeish HEAD did not have COPYING in it. + claimed that the tree-ish HEAD did not have COPYING in it. * When "git log" gets "--simplify-merges/by-decoration" together with "--first-parent", the combination of these options makes the diff --git a/Documentation/RelNotes/1.8.4.2.txt b/Documentation/RelNotes/1.8.4.2.txt index ebe5e68fcb..9adccb1efb 100644 --- a/Documentation/RelNotes/1.8.4.2.txt +++ b/Documentation/RelNotes/1.8.4.2.txt @@ -4,6 +4,33 @@ Git v1.8.4.2 Release Notes Fixes since v1.8.4.1 -------------------- + * "git clone" gave some progress messages to the standard output, not + to the standard error, and did not allow suppressing them with the + "--no-progress" option. + + * "format-patch --from=<whom>" forgot to omit unnecessary in-body + from line, i.e. when <whom> is the same as the real author. + + * "git shortlog" used to choke and die when there is a malformed + commit (e.g. missing authors); it now simply ignore such a commit + and keeps going. + + * "git merge-recursive" did not parse its "--diff-algorithm=" command + line option correctly. + + * "git branch --track" had a minor regression in v1.8.3.2 and later + that made it impossible to base your local work on anything but a + local branch of the upstream repository you are tracking from. + + * "git ls-files -k" needs to crawl only the part of the working tree + that may overlap the paths in the index to find killed files, but + shared code with the logic to find all the untracked files, which + made it unnecessarily inefficient. + + * When there is no sufficient overlap between old and new history + during a "git fetch" into a shallow repository, objects that the + sending side knows the receiving end has were unnecessarily sent. + * When running "fetch -q", a long silence while the sender side computes the set of objects to send can be mistaken by proxies as dropped connection. The server side has been taught to send a diff --git a/Documentation/RelNotes/1.8.4.3.txt b/Documentation/RelNotes/1.8.4.3.txt new file mode 100644 index 0000000000..03f3d17751 --- /dev/null +++ b/Documentation/RelNotes/1.8.4.3.txt @@ -0,0 +1,54 @@ +Git v1.8.4.3 Release Notes +======================== + +Fixes since v1.8.4.2 +-------------------- + + * The interaction between use of Perl in our test suite and NO_PERL + has been clarified a bit. + + * A fast-import stream expresses a pathname with funny characters by + quoting them in C style; remote-hg remote helper (in contrib/) + forgot to unquote such a path. + + * One long-standing flaw in the pack transfer protocol used by "git + clone" was that there was no way to tell the other end which branch + "HEAD" points at, and the receiving end needed to guess. A new + capability has been defined in the pack protocol to convey this + information so that cloning from a repository with more than one + branches pointing at the same commit where the HEAD is at now + reliably sets the initial branch in the resulting repository. + + * We did not handle cases where http transport gets redirected during + the authorization request (e.g. from http:// to https://). + + * "git rev-list --objects ^v1.0^ v1.0" gave v1.0 tag itself in the + output, but "git rev-list --objects v1.0^..v1.0" did not. + + * The fall-back parsing of commit objects with broken author or + committer lines were less robust than ideal in picking up the + timestamps. + + * Bash prompting code to deal with an SVN remote as an upstream + were coded in a way not supported by older Bash versions (3.x). + + * "git checkout topic", when there is not yet a local "topic" branch + but there is a unique remote-tracking branch for a remote "topic" + branch, pretended as if "git checkout -t -b topic remote/$r/topic" + (for that unique remote $r) was run. This hack however was not + implemented for "git checkout topic --". + + * Coloring around octopus merges in "log --graph" output was screwy. + + * We did not generate HTML version of documentation to "git subtree" + in contrib/. + + * The synopsis section of "git unpack-objects" documentation has been + clarified a bit. + + * An ancient How-To on serving Git repositories on an HTTP server + lacked a warning that it has been mostly superseded with more + modern way. + +Also contains a handful of trivial code clean-ups, documentation +updates, updates to the test suite, etc. diff --git a/Documentation/RelNotes/1.8.4.4.txt b/Documentation/RelNotes/1.8.4.4.txt new file mode 100644 index 0000000000..7bc4c5dcc0 --- /dev/null +++ b/Documentation/RelNotes/1.8.4.4.txt @@ -0,0 +1,10 @@ +Git v1.8.4.4 Release Notes +======================== + +Fixes since v1.8.4.3 +-------------------- + + * The fix in v1.8.4.3 to the pack transfer protocol to propagate + the target of symbolic refs broke "git clone/git fetch" from a + repository with too many symbolic refs. As a hotfix/workaround, + we transfer only the information on HEAD. diff --git a/Documentation/RelNotes/1.8.4.5.txt b/Documentation/RelNotes/1.8.4.5.txt new file mode 100644 index 0000000000..215bd1a7a2 --- /dev/null +++ b/Documentation/RelNotes/1.8.4.5.txt @@ -0,0 +1,13 @@ +Git v1.8.4.5 Release Notes +========================== + +Fixes since v1.8.4.4 +-------------------- + + * Recent update to remote-hg that attempted to make it work better + with non ASCII pathnames fed Unicode strings to the underlying Hg + API, which was wrong. + + * "git submodule init" copied "submodule.$name.update" settings from + .gitmodules to .git/config without making sure if the suggested + value was sensible. diff --git a/Documentation/RelNotes/1.8.5.1.txt b/Documentation/RelNotes/1.8.5.1.txt new file mode 100644 index 0000000000..7236aaf232 --- /dev/null +++ b/Documentation/RelNotes/1.8.5.1.txt @@ -0,0 +1,9 @@ +Git v1.8.5.1 Release Notes +========================== + +Fixes since v1.8.5 +------------------ + + * "git submodule init" copied "submodule.$name.update" settings from + .gitmodules to .git/config without making sure if the suggested + value was sensible. diff --git a/Documentation/RelNotes/1.8.5.2.txt b/Documentation/RelNotes/1.8.5.2.txt new file mode 100644 index 0000000000..3ac4984f10 --- /dev/null +++ b/Documentation/RelNotes/1.8.5.2.txt @@ -0,0 +1,20 @@ +Git v1.8.5.2 Release Notes +========================== + +Fixes since v1.8.5.1 +-------------------- + + * "git diff -- ':(icase)makefile'" was unnecessarily rejected at the + command line parser. + + * "git cat-file --batch-check=ok" did not check the existence of + the named object. + + * "git am --abort" sometimes complained about not being able to write + a tree with an 0{40} object in it. + + * Two processes creating loose objects at the same time could have + failed unnecessarily when the name of their new objects started + with the same byte value, due to a race condition. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/1.8.5.3.txt b/Documentation/RelNotes/1.8.5.3.txt new file mode 100644 index 0000000000..3de2dd0f19 --- /dev/null +++ b/Documentation/RelNotes/1.8.5.3.txt @@ -0,0 +1,27 @@ +Git v1.8.5.3 Release Notes +========================== + +Fixes since v1.8.5.2 +-------------------- + + * The "--[no-]informative-errors" options to "git daemon" were parsed + a bit too loosely, allowing any other string after these option + names. + + * A "gc" process running as a different user should be able to stop a + new "gc" process from starting. + + * An earlier "clean-up" introduced an unnecessary memory leak to the + credential subsystem. + + * "git mv A B/", when B does not exist as a directory, should error + out, but it didn't. + + * "git rev-parse <revs> -- <paths>" did not implement the usual + disambiguation rules the commands in the "git log" family used in + the same way. + + * "git cat-file --batch=", an admittedly useless command, did not + behave very well. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/1.8.5.4.txt b/Documentation/RelNotes/1.8.5.4.txt new file mode 100644 index 0000000000..d18c40389e --- /dev/null +++ b/Documentation/RelNotes/1.8.5.4.txt @@ -0,0 +1,48 @@ +Git v1.8.5.4 Release Notes +========================== + +Fixes since v1.8.5.3 +-------------------- + + * "git fetch --depth=0" was a no-op, and was silently ignored. + Diagnose it as an error. + + * Remote repository URL expressed in scp-style host:path notation are + parsed more carefully (e.g. "foo/bar:baz" is local, "[::1]:/~user" asks + to connect to user's home directory on host at address ::1. + + * SSL-related options were not passed correctly to underlying socket + layer in "git send-email". + + * "git commit -v" appends the patch to the log message before + editing, and then removes the patch when the editor returned + control. However, the patch was not stripped correctly when the + first modified path was a submodule. + + * "git mv A B/", when B does not exist as a directory, should error + out, but it didn't. + + * When we figure out how many file descriptors to allocate for + keeping packfiles open, a system with non-working getrlimit() could + cause us to die(), but because we make this call only to get a + rough estimate of how many is available and we do not even attempt + to use up all file descriptors available ourselves, it is nicer to + fall back to a reasonable low value rather than dying. + + * "git log --decorate" did not handle a tag pointed by another tag + nicely. + + * "git add -A" (no other arguments) in a totally empty working tree + used to emit an error. + + * There is no reason to have a hardcoded upper limit of the number of + parents for an octopus merge, created via the graft mechanism, but + there was. + + * The implementation of 'git stash $cmd "stash@{...}"' did not quote + the stash argument properly and left it split at IFS whitespace. + + * The documentation to "git pull" hinted there is an "-m" option + because it incorrectly shared the documentation with "git merge". + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/1.8.5.5.txt b/Documentation/RelNotes/1.8.5.5.txt new file mode 100644 index 0000000000..9191ce948f --- /dev/null +++ b/Documentation/RelNotes/1.8.5.5.txt @@ -0,0 +1,37 @@ +Git v1.8.5.5 Release Notes +========================== + +Fixes since v1.8.5.4 +-------------------- + + * The pathspec matching code, while comparing two trees (e.g. "git + diff A B -- path1 path2") was too aggressive and failed to match + some paths when multiple pathspecs were involved. + + * "git repack --max-pack-size=8g" stopped being parsed correctly when + the command was reimplemented in C. + + * A recent update to "git send-email" broke platforms where + /etc/ssl/certs/ directory exists but cannot be used as SSL_ca_path + (e.g. Fedora rawhide). + + * A handful of bugs around interpreting $branch@{upstream} notation + and its lookalike, when $branch part has interesting characters, + e.g. "@", and ":", have been fixed. + + * "git clone" would fail to clone from a repository that has a ref + directly under "refs/", e.g. "refs/stash", because different + validation paths do different things on such a refname. Loosen the + client side's validation to allow such a ref. + + * "git log --left-right A...B" lost the "leftness" of commits + reachable from A when A is a tag as a side effect of a recent + bugfix. This is a regression in 1.8.4.x series. + + * "git merge-base --octopus" used to leave cleaning up suboptimal + result to the caller, but now it does the clean-up itself. + + * "git mv A B/", when B does not exist as a directory, should error + out, but it didn't. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/1.8.5.6.txt b/Documentation/RelNotes/1.8.5.6.txt new file mode 100644 index 0000000000..92ff92b1e6 --- /dev/null +++ b/Documentation/RelNotes/1.8.5.6.txt @@ -0,0 +1,34 @@ +Git v1.8.5.6 Release Notes +========================== + +Fixes since v1.8.5.5 +-------------------- + + * We used to allow committing a path ".Git/config" with Git that is + running on a case sensitive filesystem, but an attempt to check out + such a path with Git that runs on a case insensitive filesystem + would have clobbered ".git/config", which is definitely not what + the user would have expected. Git now prevents you from tracking + a path with ".Git" (in any case combination) as a path component. + + * On Windows, certain path components that are different from ".git" + are mapped to ".git", e.g. "git~1/config" is treated as if it were + ".git/config". HFS+ has a similar issue, where certain unicode + codepoints are ignored, e.g. ".g\u200cit/config" is treated as if + it were ".git/config". Pathnames with these potential issues are + rejected on the affected systems. Git on systems that are not + affected by this issue (e.g. Linux) can also be configured to + reject them to ensure cross platform interoperability of the hosted + projects. + + * "git fsck" notices a tree object that records such a path that can + be confused with ".git", and with receive.fsckObjects configuration + set to true, an attempt to "git push" such a tree object will be + rejected. Such a path may not be a problem on a well behaving + filesystem but in order to protect those on HFS+ and on case + insensitive filesystems, this check is enabled on all platforms. + +A big "thanks!" for bringing this issue to us goes to our friends in +the Mercurial land, namely, Matt Mackall and Augie Fackler. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/1.8.5.txt b/Documentation/RelNotes/1.8.5.txt new file mode 100644 index 0000000000..602df0cac2 --- /dev/null +++ b/Documentation/RelNotes/1.8.5.txt @@ -0,0 +1,456 @@ +Git v1.8.5 Release Notes +======================== + +Backward compatibility notes (for Git 2.0) +------------------------------------------ + +When "git push [$there]" does not say what to push, we have used the +traditional "matching" semantics so far (all your branches were sent +to the remote as long as there already are branches of the same name +over there). In Git 2.0, the default will change to the "simple" +semantics, which pushes: + + - only the current branch to the branch with the same name, and only + when the current branch is set to integrate with that remote + branch, if you are pushing to the same remote as you fetch from; or + + - only the current branch to the branch with the same name, if you + are pushing to a remote that is not where you usually fetch from. + +Use the user preference configuration variable "push.default" to +change this. If you are an old-timer who is used to the "matching" +semantics, you can set the variable to "matching" to keep the +traditional behaviour. If you want to live in the future early, you +can set it to "simple" today without waiting for Git 2.0. + +When "git add -u" (and "git add -A") is run inside a subdirectory and +does not specify which paths to add on the command line, it +will operate on the entire tree in Git 2.0 for consistency +with "git commit -a" and other commands. There will be no +mechanism to make plain "git add -u" behave like "git add -u .". +Current users of "git add -u" (without a pathspec) should start +training their fingers to explicitly say "git add -u ." +before Git 2.0 comes. A warning is issued when these commands are +run without a pathspec and when you have local changes outside the +current directory, because the behaviour in Git 2.0 will be different +from today's version in such a situation. + +In Git 2.0, "git add <path>" will behave as "git add -A <path>", so +that "git add dir/" will notice paths you removed from the directory +and record the removal. Versions before Git 2.0, including this +release, will keep ignoring removals, but the users who rely on this +behaviour are encouraged to start using "git add --ignore-removal <path>" +now before 2.0 is released. + +The default prefix for "git svn" will change in Git 2.0. For a long +time, "git svn" created its remote-tracking branches directly under +refs/remotes, but it will place them under refs/remotes/origin/ unless +it is told otherwise with its --prefix option. + + +Updates since v1.8.4 +-------------------- + +Foreign interfaces, subsystems and ports. + + * "git-svn" has been taught to use the serf library, which is the + only option SVN 1.8.0 offers us when talking the HTTP protocol. + + * "git-svn" talking over an https:// connection using the serf library + dumped core due to a bug in the serf library that SVN uses. Work + around it on our side, even though the SVN side is being fixed. + + * On MacOS X, we detected if the filesystem needs the "pre-composed + unicode strings" workaround, but did not automatically enable it. + Now we do. + + * remote-hg remote helper misbehaved when interacting with a local Hg + repository relative to the home directory, e.g. "clone hg::~/there". + + * imap-send ported to OS X uses Apple's security framework instead of + OpenSSL's. + + * "git fast-import" treats an empty path given to "ls" as the root of + the tree. + + +UI, Workflows & Features + + * xdg-open can be used as a browser backend for "git web-browse" + (hence to show "git help -w" output), when available. + + * "git grep" and "git show" pay attention to the "--textconv" option + when these commands are told to operate on blob objects (e.g. "git + grep -e pattern --textconv HEAD:Makefile"). + + * "git replace" helper no longer allows an object to be replaced with + another object of a different type to avoid confusion (you can + still manually craft such a replacement using "git update-ref", as an + escape hatch). + + * "git status" no longer prints the dirty status information of + submodules for which submodule.$name.ignore is set to "all". + + * "git rebase -i" honours core.abbrev when preparing the insn sheet + for editing. + + * "git status" during a cherry-pick shows which original commit is + being picked. + + * Instead of typing four capital letters "HEAD", you can say "@" now, + e.g. "git log @". + + * "git check-ignore" follows the same rule as "git add" and "git + status" in that the ignore/exclude mechanism does not take effect + on paths that are already tracked. With the "--no-index" option, it + can be used to diagnose which paths that should have been ignored + have been mistakenly added to the index. + + * Some irrelevant "advice" messages that are shared with "git status" + output have been removed from the commit log template. + + * "update-refs" learned a "--stdin" option to read multiple update + requests and perform them in an all-or-none fashion. + + * Just like "make -C <directory>", "git -C <directory> ..." tells Git + to go there before doing anything else. + + * Just like "git checkout -" knows to check out, and "git merge -" + knows to merge, the branch you were previously on, "git cherry-pick" + now understands "git cherry-pick -" to pick from the previous + branch. + + * "git status" now omits the prefix to make its output a comment in a + commit log editor, which is not necessary for human consumption. + Scripts that parse the output of "git status" are advised to use + "git status --porcelain" instead, as its format is stable and easier + to parse. + + * The ref syntax "foo^{tag}" (with the literal string "{tag}") peels a + tag ref to itself, i.e. it's a no-op., and fails if + "foo" is not a tag. "git rev-parse --verify v1.0^{tag}" is + a more convenient way than "test $(git cat-file -t v1.0) = tag" to + check if v1.0 is a tag. + + * "git branch -v -v" (and "git status") did not distinguish among a + branch that is not based on any other branch, a branch that is in + sync with its upstream branch, and a branch that is configured with an + upstream branch that no longer exists. + + * Earlier we started rejecting any attempt to add the 0{40} object name to + the index and to tree objects, but it sometimes is necessary to + allow this to be able to use tools like filter-branch to correct such + broken tree objects. "filter-branch" can again be used to do this. + + * "git config" did not provide a way to set or access numbers larger + than a native "int" on the platform; it now provides 64-bit signed + integers on all platforms. + + * "git pull --rebase" always chose to do the bog-standard flattening + rebase. You can tell it to run "rebase --preserve-merges" with + "git pull --rebase=preserve" or by + setting "pull.rebase" configuration to "preserve". + + * "git push --no-thin" actually disables the "thin pack transfer" + optimization. + + * Magic pathspecs like ":(icase)makefile" (matches both Makefile + and makefile) and ":(glob)foo/**/bar" (matches "bar" in "foo" + and any subdirectory of "foo") can be used in more places. + + * The "http.*" variables can now be specified for individual URLs. + For example, + + [http] + sslVerify = true + [http "https://weak.example.com/"] + sslVerify = false + + would flip http.sslVerify off only when talking to that specific + site. + + * "git mv A B" when moving a submodule has been taught to + relocate the submodule's working tree and to adjust the paths in the + .gitmodules file. + + * "git blame" can now take more than one -L option to discover the + origin of multiple blocks of lines. + + * The http transport clients can optionally ask to save cookies + with the http.savecookies configuration variable. + + * "git push" learned a more fine grained control over a blunt + "--force" when requesting a non-fast-forward update with the + "--force-with-lease=<refname>:<expected object name>" option. + + * "git diff --diff-filter=<classes of changes>" can now take + lowercase letters (e.g. "--diff-filter=d") to mean "show + everything but these classes". "git diff-files -q" is now a + deprecated synonym for "git diff-files --diff-filter=d". + + * "git fetch" (hence "git pull" as well) learned to check + "fetch.prune" and "remote.*.prune" configuration variables and + to behave as if the "--prune" command line option was given. + + * "git check-ignore -z" applied the NUL termination to both its input + (with --stdin) and its output, but "git check-attr -z" ignored the + option on the output side. Make both honor -z on the input and + output side the same way. + + * "git whatchanged" may still be used by old timers, but mention of + it in documents meant for new users will only waste readers' time + wondering what the difference is between it and "git log". Make it + less prominent in the general part of the documentation and explain + that it is merely a "git log" with different default behaviour in + its own document. + + +Performance, Internal Implementation, etc. + + * "git for-each-ref" when asking for merely the object name does not + have to parse the object pointed at by the refs; the codepath has + been optimized. + + * The HTTP transport will try to use TCP keepalive when able. + + * "git repack" is now written in C. + + * Build procedure for MSVC has been updated. + + * If a build-time fallback is set to "cat" instead of "less", we + should apply the same "no subprocess or pipe" optimization as we + apply to user-supplied GIT_PAGER=cat. + + * Many commands use a --dashed-option as an operation mode selector + (e.g. "git tag --delete") that excludes other operation modes + (e.g. "git tag --delete --verify" is nonsense) and that cannot be + negated (e.g. "git tag --no-delete" is nonsense). The parse-options + API learned a new OPT_CMDMODE macro to make it easier to implement + such a set of options. + + * OPT_BOOLEAN() in the parse-options API was misdesigned to be "counting + up" but many subcommands expect it to behave as "on/off". Update + them to use OPT_BOOL() which is a proper boolean. + + * "git gc" exits early without doing any work when it detects + that another instance of itself is already running. + + * Under memory pressure and/or file descriptor pressure, we used to + close pack windows that are not used and also closed filehandles to + open but unused packfiles. These are now controlled separately + to better cope with the load. + +Also contains various documentation updates and code clean-ups. + + +Fixes since v1.8.4 +------------------ + +Unless otherwise noted, all the fixes since v1.8.4 in the maintenance +track are contained in this release (see the maintenance releases' notes for +details). + + * An ancient How-To on serving Git repositories on an HTTP server + lacked a warning that it has been mostly superseded with a more + modern way. + (merge 6d52bc3 sc/doc-howto-dumb-http later to maint). + + * The interaction between the use of Perl in our test suite and NO_PERL + has been clarified a bit. + (merge f8fc0ee jn/test-prereq-perl-doc later to maint). + + * The synopsis section of the "git unpack-objects" documentation has been + clarified a bit. + (merge 61e2e22 vd/doc-unpack-objects later to maint). + + * We did not generate the HTML version of the documentation to "git subtree" + in contrib/. + (merge 95c62fb jk/subtree-install-fix later to maint). + + * A fast-import stream expresses a pathname with funny characters by + quoting them in C style; the remote-hg remote helper forgot to unquote + such a path. + (merge 1136265 ap/remote-hg-unquote-cquote later to maint). + + * "git reset -p HEAD" has a codepath to special-case it to behave + differently from resetting to contents of other commits, but a + recent change broke it. + + * Coloring around octopus merges in "log --graph" output was screwy. + (merge 339c17b hn/log-graph-color-octopus later to maint). + + * "git checkout topic", when there is not yet a local "topic" branch + but there is a unique remote-tracking branch for a remote "topic" + branch, pretended as if "git checkout -t -b topic remote/$r/topic" + (for that unique remote $r) was run. This hack however was not + implemented for "git checkout topic --". + (merge bca3969 mm/checkout-auto-track-fix later to maint). + + * One long-standing flaw in the pack transfer protocol used by "git + clone" was that there was no way to tell the other end which branch + "HEAD" points at, and the receiving end needed to guess. A new + capability has been defined in the pack protocol to convey this + information so that cloning from a repository with more than one + branch pointing at the same commit where the HEAD is at now + reliably sets the initial branch in the resulting repository. + (merge 360a326 jc/upload-pack-send-symref later to maint). + + * We did not handle cases where the http transport gets redirected during + the authorization request (e.g. from http:// to https://). + (merge 70900ed jk/http-auth-redirects later to maint). + + * Bash prompting code to deal with an SVN remote as an upstream + was coded in a way unsupported by older Bash versions (3.x). + (merge 52ec889 sg/prompt-svn-remote-fix later to maint). + + * The fall-back parsing of commit objects with broken author or + committer lines was less robust than ideal in picking up the + timestamps. + (merge 03818a4 jk/split-broken-ident later to maint). + + * "git rev-list --objects ^v1.0^ v1.0" gave the v1.0 tag itself in the + output, but "git rev-list --objects v1.0^..v1.0" did not. + (merge 895c5ba jc/revision-range-unpeel later to maint). + + * "git clone" wrote some progress messages to standard output, not + to standard error, and did not suppress them with the + --no-progress option. + (merge 643f918 jk/clone-progress-to-stderr later to maint). + + * "format-patch --from=<whom>" forgot to omit an unnecessary in-body + from line, i.e. when <whom> is the same as the real author. + (merge 662cc30 jk/format-patch-from later to maint). + + * "git shortlog" used to choke and die when there is a malformed + commit (e.g. missing authors); it now simply ignores such a commit + and keeps going. + (merge cd4f09e jk/shortlog-tolerate-broken-commit later to maint). + + * "git merge-recursive" did not parse its "--diff-algorithm=" command + line option correctly. + (merge 6562928 jk/diff-algo later to maint). + + * When running "fetch -q", a long silence while the sender side + computes the set of objects to send can be mistaken by proxies as + dropped connection. The server side has been taught to send a + small empty messages to keep the connection alive. + (merge 115dedd jk/upload-pack-keepalive later to maint). + + * "git rebase" had a portability regression in v1.8.4 that triggered a + bug in some BSD shell implementations. + (merge 99855dd mm/rebase-continue-freebsd-WB later to maint). + + * "git branch --track" had a minor regression in v1.8.3.2 and later + that made it impossible to base your local work on anything but a + local branch of the upstream repository you are tracking. + (merge b0f49ff jh/checkout-auto-tracking later to maint). + + * When the web server responds with "405 Method Not Allowed", "git + http-backend" should tell the client what methods are allowed with + the "Allow" header. + (merge 9247be0 bc/http-backend-allow-405 later to maint). + + * When there is no sufficient overlap between old and new history + during a "git fetch" into a shallow repository, objects that the + sending side knows the receiving end has were unnecessarily sent. + (merge f21d2a7 nd/fetch-into-shallow later to maint). + + * "git cvsserver" computed the permission mode bits incorrectly for + executable files. + (merge 1b48d56 jc/cvsserver-perm-bit-fix later to maint). + + * When send-email obtains an error message to die with upon + failure to start an SSL session, it tried to read the error string + from a wrong place. + (merge 6cb0c88 bc/send-email-ssl-die-message-fix later to maint). + + * The implementation of "add -i" has some crippling code to work around an + ActiveState Perl limitation but it by mistake also triggered on Git + for Windows where MSYS perl is used. + (merge df17e77 js/add-i-mingw later to maint). + + * We made sure that we notice when the user-supplied GIT_DIR is actually a + gitfile, but did not do the same when the default ".git" is a + gitfile. + (merge 487a2b7 nd/git-dir-pointing-at-gitfile later to maint). + + * When an object is not found after checking the packfiles and the + loose object directory, read_sha1_file() re-checks the packfiles to + prevent racing with a concurrent repacker; teach the same logic to + has_sha1_file(). + (merge 45e8a74 jk/has-sha1-file-retry-packed later to maint). + + * "git commit --author=$name", when $name is not in the canonical + "A. U. Thor <au.thor@example.xz>" format, looks for a matching name + from existing history, but did not consult mailmap to grab the + preferred author name. + (merge ea16794 ap/commit-author-mailmap later to maint). + + * "git ls-files -k" needs to crawl only the part of the working tree + that may overlap the paths in the index to find killed files, but + shared code with the logic to find all the untracked files, which + made it unnecessarily inefficient. + (merge 680be04 jc/ls-files-killed-optim later to maint). + + * The shortened commit object names in the insn sheet that is prepared at the + beginning of a "rebase -i" session can become ambiguous as the + rebasing progresses and the repository gains more commits. Make + sure the internal record is kept with full 40-hex object names. + (merge 75c6976 es/rebase-i-no-abbrev later to maint). + + * "git rebase --preserve-merges" internally used the merge machinery + and as a side effect left the merge summary message in the log, but + when rebasing there is no need for the merge summary. + (merge a9f739c rt/rebase-p-no-merge-summary later to maint). + + * A call to xread() was used without a loop around it to cope with short + reads in the codepath to stream new contents to a pack. + (merge e92527c js/xread-in-full later to maint). + + * "git rebase -i" forgot that the comment character is + configurable while reading its insn sheet. + (merge 7bca7af es/rebase-i-respect-core-commentchar later to maint). + + * The mailmap support code read past the allocated buffer when the + mailmap file ended with an incomplete line. + (merge f972a16 jk/mailmap-incomplete-line later to maint). + + * We used to send a large request to read(2)/write(2) as a single + system call, which was bad from the latency point of view when + the operation needs to be killed, and also triggered an error on + broken 64-bit systems that refuse to read or write more than 2GB + in one go. + (merge a487916 sp/clip-read-write-to-8mb later to maint). + + * "git fetch" that auto-followed tags incorrectly reused the + connection with Git-aware transport helper (like the sample "ext::" + helper shipped with Git). + (merge 0f73f8b jc/transport-do-not-use-connect-twice-in-fetch later to maint). + + * "git log --full-diff -- <pathspec>" showed a huge diff for paths + outside the given <pathspec> for each commit, instead of showing + the change relative to the parent of the commit. "git reflog -p" + had a similar problem. + (merge 838f9a1 tr/log-full-diff-keep-true-parents later to maint). + + * Setting a submodule.*.path configuration variable to true (without + giving "= value") caused Git to segfault. + (merge 4b05440 jl/some-submodule-config-are-not-boolean later to maint). + + * "git rebase -i" (there could be others, as the root cause is pretty + generic) fed a random, data dependent string to 'echo' and + expected it to come out literally, corrupting its error message. + (merge 89b0230 mm/no-shell-escape-in-die-message later to maint). + + * Some people still use rather old versions of bash, which cannot + grok some constructs like 'printf -v varname' which the prompt and + completion code started to use recently. + (merge a44aa69 bc/completion-for-bash-3.0 later to maint). + + * Code to read configuration from a blob object did not compile on + platforms with fgetc() etc. implemented as macros. + (merge 49d6cfa hv/config-from-blob later to maint-1.8.3). + + * The recent "short-cut clone connectivity check" topic broke a + shallow repository when a fetch operation tries to auto-follow tags. + (merge 6da8bdc nd/fetch-pack-shallow-fix later to maint-1.8.3). diff --git a/Documentation/RelNotes/1.9.0.txt b/Documentation/RelNotes/1.9.0.txt new file mode 100644 index 0000000000..752d79127a --- /dev/null +++ b/Documentation/RelNotes/1.9.0.txt @@ -0,0 +1,345 @@ +Git v1.9.0 Release Notes +======================== + +Backward compatibility notes +---------------------------- + +"git submodule foreach $cmd $args" used to treat "$cmd $args" the same +way "ssh" did, concatenating them into a single string and letting the +shell unquote. Careless users who forget to sufficiently quote $args +get their argument split at $IFS whitespaces by the shell, and got +unexpected results due to this. Starting from this release, the +command line is passed directly to the shell, if it has an argument. + +Read-only support for experimental loose-object format, in which users +could optionally choose to write their loose objects for a short +while between v1.4.3 and v1.5.3 era, has been dropped. + +The meanings of the "--tags" option to "git fetch" has changed; the +command fetches tags _in addition to_ what is fetched by the same +command line without the option. + +The way "git push $there $what" interprets the $what part given on the +command line, when it does not have a colon that explicitly tells us +what ref at the $there repository is to be updated, has been enhanced. + +A handful of ancient commands that have long been deprecated are +finally gone (repo-config, tar-tree, lost-found, and peek-remote). + + +Backward compatibility notes (for Git 2.0.0) +-------------------------------------------- + +When "git push [$there]" does not say what to push, we have used the +traditional "matching" semantics so far (all your branches were sent +to the remote as long as there already are branches of the same name +over there). In Git 2.0, the default will change to the "simple" +semantics, which pushes: + + - only the current branch to the branch with the same name, and only + when the current branch is set to integrate with that remote + branch, if you are pushing to the same remote as you fetch from; or + + - only the current branch to the branch with the same name, if you + are pushing to a remote that is not where you usually fetch from. + +Use the user preference configuration variable "push.default" to +change this. If you are an old-timer who is used to the "matching" +semantics, you can set the variable to "matching" to keep the +traditional behaviour. If you want to live in the future early, you +can set it to "simple" today without waiting for Git 2.0. + +When "git add -u" (and "git add -A") is run inside a subdirectory and +does not specify which paths to add on the command line, it +will operate on the entire tree in Git 2.0 for consistency +with "git commit -a" and other commands. There will be no +mechanism to make plain "git add -u" behave like "git add -u .". +Current users of "git add -u" (without a pathspec) should start +training their fingers to explicitly say "git add -u ." +before Git 2.0 comes. A warning is issued when these commands are +run without a pathspec and when you have local changes outside the +current directory, because the behaviour in Git 2.0 will be different +from today's version in such a situation. + +In Git 2.0, "git add <path>" will behave as "git add -A <path>", so +that "git add dir/" will notice paths you removed from the directory +and record the removal. Versions before Git 2.0, including this +release, will keep ignoring removals, but the users who rely on this +behaviour are encouraged to start using "git add --ignore-removal <path>" +now before 2.0 is released. + +The default prefix for "git svn" will change in Git 2.0. For a long +time, "git svn" created its remote-tracking branches directly under +refs/remotes, but it will place them under refs/remotes/origin/ unless +it is told otherwise with its --prefix option. + + +Updates since v1.8.5 +-------------------- + +Foreign interfaces, subsystems and ports. + + * The HTTP transport, when talking GSS-Negotiate, uses "100 + Continue" response to avoid having to rewind and resend a large + payload, which may not be always doable. + + * Various bugfixes to remote-bzr and remote-hg (in contrib/). + + * The build procedure is aware of MirBSD now. + + * Various "git p4", "git svn" and "gitk" updates. + + +UI, Workflows & Features + + * Fetching from a shallowly-cloned repository used to be forbidden, + primarily because the codepaths involved were not carefully vetted + and we did not bother supporting such usage. This release attempts + to allow object transfer out of a shallowly-cloned repository in a + more controlled way (i.e. the receiver becomes a shallow repository + with a truncated history). + + * Just like we give a reasonable default for "less" via the LESS + environment variable, we now specify a reasonable default for "lv" + via the "LV" environment variable when spawning the pager. + + * Two-level configuration variable names in "branch.*" and "remote.*" + hierarchies, whose variables are predominantly three-level, were + not completed by hitting a <TAB> in bash and zsh completions. + + * Fetching a 'frotz' branch with "git fetch", while a 'frotz/nitfol' + remote-tracking branch from an earlier fetch was still there, would + error out, primarily because the command was not told that it is + allowed to lose any information on our side. "git fetch --prune" + now can be used to remove 'frotz/nitfol' to make room for fetching and + storing the 'frotz' remote-tracking branch. + + * "diff.orderfile=<file>" configuration variable can be used to + pretend as if the "-O<file>" option were given from the command + line of "git diff", etc. + + * The negative pathspec syntax allows "git log -- . ':!dir'" to tell + us "I am interested in everything but 'dir' directory". + + * "git difftool" shows how many different paths there are in total, + and how many of them have been shown so far, to indicate progress. + + * "git push origin master" used to push our 'master' branch to update + the 'master' branch at the 'origin' repository. This has been + enhanced to use the same ref mapping "git push origin" would use to + determine what ref at the 'origin' to be updated with our 'master'. + For example, with this configuration + + [remote "origin"] + push = refs/heads/*:refs/review/* + + that would cause "git push origin" to push out our local branches + to corresponding refs under refs/review/ hierarchy at 'origin', + "git push origin master" would update 'refs/review/master' over + there. Alternatively, if push.default is set to 'upstream' and our + 'master' is set to integrate with 'topic' from the 'origin' branch, + running "git push origin" while on our 'master' would update their + 'topic' branch, and running "git push origin master" while on any + of our branches does the same. + + * "gitweb" learned to treat ref hierarchies other than refs/heads as + if they are additional branch namespaces (e.g. refs/changes/ in + Gerrit). + + * "git for-each-ref --format=..." learned a few formatting directives; + e.g. "%(color:red)%(HEAD)%(color:reset) %(refname:short) %(subject)". + + * The command string given to "git submodule foreach" is passed + directly to the shell, without being eval'ed. This is a backward + incompatible change that may break existing users. + + * "git log" and friends learned the "--exclude=<glob>" option, to + allow people to say "list history of all branches except those that + match this pattern" with "git log --exclude='*/*' --branches". + + * "git rev-parse --parseopt" learned a new "--stuck-long" option to + help scripts parse options with an optional parameter. + + * The "--tags" option to "git fetch" no longer tells the command to + fetch _only_ the tags. It instead fetches tags _in addition to_ + what are fetched by the same command line without the option. + + +Performance, Internal Implementation, etc. + + * When parsing a 40-hex string into the object name, the string is + checked to see if it can be interpreted as a ref so that a warning + can be given for ambiguity. The code kicked in even when the + core.warnambiguousrefs is set to false to squelch this warning, in + which case the cycles spent to look at the ref namespace were an + expensive no-op, as the result was discarded without being used. + + * The naming convention of the packfiles has been updated; it used to + be based on the enumeration of names of the objects that are + contained in the pack, but now it also depends on how the packed + result is represented---packing the same set of objects using + different settings (or delta order) would produce a pack with + different name. + + * "git diff --no-index" mode used to unnecessarily attempt to read + the index when there is one. + + * The deprecated parse-options macro OPT_BOOLEAN has been removed; + use OPT_BOOL or OPT_COUNTUP in new code. + + * A few duplicate implementations of prefix/suffix string comparison + functions have been unified to starts_with() and ends_with(). + + * The new PERLLIB_EXTRA makefile variable can be used to specify + additional directories Perl modules (e.g. the ones necessary to run + git-svn) are installed on the platform when building. + + * "git merge-base" learned the "--fork-point" mode, that implements + the same logic used in "git pull --rebase" to find a suitable fork + point out of the reflog entries for the remote-tracking branch the + work has been based on. "git rebase" has the same logic that can be + triggered with the "--fork-point" option. + + * A third-party "receive-pack" (the responder to "git push") can + advertise the "no-thin" capability to tell "git push" not to use + the thin-pack optimization. Our receive-pack has always been + capable of accepting and fattening a thin-pack, and will continue + not to ask "git push" to use a non-thin pack. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v1.8.5 +------------------ + +Unless otherwise noted, all the fixes since v1.8.5 in the maintenance +track are contained in this release (see the maintenance releases' notes +for details). + + * The pathspec matching code, while comparing two trees (e.g. "git + diff A B -- path1 path2") was too aggressive and failed to match + some paths when multiple pathspecs were involved. + + * "git repack --max-pack-size=8g" stopped being parsed correctly when + the command was reimplemented in C. + + * An earlier update in v1.8.4.x to "git rev-list --objects" with + negative ref had a performance regression. + (merge 200abe7 jk/mark-edges-uninteresting later to maint). + + * A recent update to "git send-email" broke platforms where + /etc/ssl/certs/ directory exists but cannot be used as SSL_ca_path + (e.g. Fedora rawhide). + + * A handful of bugs around interpreting $branch@{upstream} notation + and its lookalike, when $branch part has interesting characters, + e.g. "@", and ":", have been fixed. + + * "git clone" would fail to clone from a repository that has a ref + directly under "refs/", e.g. "refs/stash", because different + validation paths do different things on such a refname. Loosen the + client side's validation to allow such a ref. + + * "git log --left-right A...B" lost the "leftness" of commits + reachable from A when A is a tag as a side effect of a recent + bugfix. This is a regression in 1.8.4.x series. + + * documentations to "git pull" hinted there is an "-m" option because + it incorrectly shared the documentation with "git merge". + + * "git diff A B submod" and "git diff A B submod/" ought to have done + the same for a submodule "submod", but didn't. + + * "git clone $origin foo\bar\baz" on Windows failed to create the + leading directories (i.e. a moral-equivalent of "mkdir -p"). + + * "submodule.*.update=checkout", when propagated from .gitmodules to + .git/config, turned into a "submodule.*.update=none", which did not + make much sense. + (merge efa8fd7 fp/submodule-checkout-mode later to maint). + + * The implementation of 'git stash $cmd "stash@{...}"' did not quote + the stash argument properly and left it split at IFS whitespace. + + * The "--[no-]informative-errors" options to "git daemon" were parsed + a bit too loosely, allowing any other string after these option + names. + + * There is no reason to have a hardcoded upper limit for the number of + parents of an octopus merge, created via the graft mechanism, but + there was. + + * The basic test used to leave unnecessary trash directories in the + t/ directory. + (merge 738a8be jk/test-framework-updates later to maint). + + * "git merge-base --octopus" used to leave cleaning up suboptimal + result to the caller, but now it does the clean-up itself. + + * A "gc" process running as a different user should be able to stop a + new "gc" process from starting, but it didn't. + + * An earlier "clean-up" introduced an unnecessary memory leak. + + * "git add -A" (no other arguments) in a totally empty working tree + used to emit an error. + + * "git log --decorate" did not handle a tag pointed by another tag + nicely. + + * When we figure out how many file descriptors to allocate for + keeping packfiles open, a system with non-working getrlimit() could + cause us to die(), but because we make this call only to get a + rough estimate of how many are available and we do not even attempt + to use up all available file descriptors ourselves, it is nicer to + fall back to a reasonable low value rather than dying. + + * read_sha1_file(), that is the workhorse to read the contents given + an object name, honoured object replacements, but there was no + corresponding mechanism to sha1_object_info() that was used to + obtain the metainfo (e.g. type & size) about the object. This led + callers to weird inconsistencies. + (merge 663a856 cc/replace-object-info later to maint). + + * "git cat-file --batch=", an admittedly useless command, did not + behave very well. + + * "git rev-parse <revs> -- <paths>" did not implement the usual + disambiguation rules the commands in the "git log" family used in + the same way. + + * "git mv A B/", when B does not exist as a directory, should error + out, but it didn't. + + * A workaround to an old bug in glibc prior to glibc 2.17 has been + retired; this would remove a side effect of the workaround that + corrupts system error messages in non-C locales. + + * SSL-related options were not passed correctly to underlying socket + layer in "git send-email". + + * "git commit -v" appends the patch to the log message before + editing, and then removes the patch when the editor returned + control. However, the patch was not stripped correctly when the + first modified path was a submodule. + + * "git fetch --depth=0" was a no-op, and was silently ignored. + Diagnose it as an error. + + * Remote repository URLs expressed in scp-style host:path notation are + parsed more carefully (e.g. "foo/bar:baz" is local, "[::1]:/~user" asks + to connect to user's home directory on host at address ::1. + + * "git diff -- ':(icase)makefile'" was unnecessarily rejected at the + command line parser. + + * "git cat-file --batch-check=ok" did not check the existence of + the named object. + + * "git am --abort" sometimes complained about not being able to write + a tree with an 0{40} object in it. + + * Two processes creating loose objects at the same time could have + failed unnecessarily when the name of their new objects started + with the same byte value, due to a race condition. diff --git a/Documentation/RelNotes/1.9.1.txt b/Documentation/RelNotes/1.9.1.txt new file mode 100644 index 0000000000..5b0602053c --- /dev/null +++ b/Documentation/RelNotes/1.9.1.txt @@ -0,0 +1,59 @@ +Git v1.9.1 Release Notes +======================== + +Fixes since v1.9.0 +------------------ + + * "git clean -d pathspec" did not use the given pathspec correctly + and ended up cleaning too much. + + * "git difftool" misbehaved when the repository is bound to the + working tree with the ".git file" mechanism, where a textual file + ".git" tells us where it is. + + * "git push" did not pay attention to branch.*.pushremote if it is + defined earlier than remote.pushdefault; the order of these two + variables in the configuration file should not matter, but it did + by mistake. + + * Codepaths that parse timestamps in commit objects have been + tightened. + + * "git diff --external-diff" incorrectly fed the submodule directory + in the working tree to the external diff driver when it knew it is + the same as one of the versions being compared. + + * "git reset" needs to refresh the index when working in a working + tree (it can also be used to match the index to the HEAD in an + otherwise bare repository), but it failed to set up the working + tree properly, causing GIT_WORK_TREE to be ignored. + + * "git check-attr" when working on a repository with a working tree + did not work well when the working tree was specified via the + --work-tree (and obviously with --git-dir) option. + + * "merge-recursive" was broken in 1.7.7 era and stopped working in + an empty (temporary) working tree, when there are renames + involved. This has been corrected. + + * "git rev-parse" was loose in rejecting command line arguments + that do not make sense, e.g. "--default" without the required + value for that option. + + * include.path variable (or any variable that expects a path that + can use ~username expansion) in the configuration file is not a + boolean, but the code failed to check it. + + * "git diff --quiet -- pathspec1 pathspec2" sometimes did not return + correct status value. + + * Attempting to deepen a shallow repository by fetching over smart + HTTP transport failed in the protocol exchange, when no-done + extension was used. The fetching side waited for the list of + shallow boundary commits after the sending end stopped talking to + it. + + * Allow "git cmd path/", when the 'path' is where a submodule is + bound to the top-level working tree, to match 'path', despite the + extra and unnecessary trailing slash (such a slash is often + given by command line completion). diff --git a/Documentation/RelNotes/1.9.2.txt b/Documentation/RelNotes/1.9.2.txt new file mode 100644 index 0000000000..47a34ca964 --- /dev/null +++ b/Documentation/RelNotes/1.9.2.txt @@ -0,0 +1,67 @@ +Git v1.9.2 Release Notes +======================== + +Fixes since v1.9.1 +------------------ + + * Documentation and in-code comments had many instances of mistaken + use of "nor", which have been corrected. + + * "git fetch --prune", when the right-hand-side of multiple fetch + refspecs overlap (e.g. storing "refs/heads/*" to + "refs/remotes/origin/*", while storing "refs/frotz/*" to + "refs/remotes/origin/fr/*"), aggressively thought that lack of + "refs/heads/fr/otz" on the origin site meant we should remove + "refs/remotes/origin/fr/otz" from us, without checking their + "refs/frotz/otz" first. + + Note that such a configuration is inherently unsafe (think what + should happen when "refs/heads/fr/otz" does appear on the origin + site), but that is not a reason not to be extra careful. + + * "git update-ref --stdin" did not fail a request to create a ref + when the ref already existed. + + * "git diff --no-index -Mq a b" fell into an infinite loop. + + * When it is not necessary to edit a commit log message (e.g. "git + commit -m" is given a message without specifying "-e"), we used to + disable the spawning of the editor by overriding GIT_EDITOR, but + this means all the uses of the editor, other than to edit the + commit log message, are also affected. + + * "git status --porcelain --branch" showed its output with labels + "ahead/behind/gone" translated to the user's locale. + + * "git mv" that moves a submodule forgot to adjust the array that + uses to keep track of which submodules were to be moved to update + its configuration. + + * Length limit for the pathname used when removing a path in a deep + subdirectory has been removed to avoid buffer overflows. + + * The test helper lib-terminal always run an actual test_expect_* + when included, which screwed up with the use of skil-all that may + have to be done later. + + * "git index-pack" used a wrong variable to name the keep-file in an + error message when the file cannot be written or closed. + + * "rebase -i" produced a broken insn sheet when the title of a commit + happened to contain '\n' (or ended with '\c') due to a careless use + of 'echo'. + + * There were a few instances of 'git-foo' remaining in the + documentation that should have been spelled 'git foo'. + + * Serving objects from a shallow repository needs to write a + new file to hold the temporary shallow boundaries but it was not + cleaned when we exit due to die() or a signal. + + * When "git stash pop" stops after failing to apply the stash + (e.g. due to conflicting changes), the stash is not dropped. State + that explicitly in the output to let the users know. + + * The labels in "git status" output that describe the nature of + conflicts (e.g. "both deleted") were limited to 20 bytes, which was + too short for some l10n (e.g. fr). diff --git a/Documentation/RelNotes/1.9.3.txt b/Documentation/RelNotes/1.9.3.txt new file mode 100644 index 0000000000..17b05ca7b5 --- /dev/null +++ b/Documentation/RelNotes/1.9.3.txt @@ -0,0 +1,21 @@ +Git v1.9.3 Release Notes +======================== + +Fixes since v1.9.2 +------------------ + + * "git p4" dealing with changes in binary files were broken by a + change in 1.9 release. + + * The shell prompt script (in contrib/), when using the PROMPT_COMMAND + interface, used an unsafe construct when showing the branch name in + $PS1. + + * "git rebase" used a POSIX shell construct FreeBSD /bin/sh does not + work well with. + + * Some more Unicode codepoints defined in Unicode 6.3 as having + zero width have been taught to our display column counting logic. + + * Some tests used shell constructs that did not work well on + FreeBSD. diff --git a/Documentation/RelNotes/1.9.4.txt b/Documentation/RelNotes/1.9.4.txt new file mode 100644 index 0000000000..e1d1835436 --- /dev/null +++ b/Documentation/RelNotes/1.9.4.txt @@ -0,0 +1,16 @@ +Git v1.9.4 Release Notes +======================== + +Fixes since v1.9.3 +------------------ + + * Commands that take pathspecs on the command line misbehaved when + the pathspec is given as an absolute pathname (which is a + practice not particularly encouraged) that points at a symbolic + link in the working tree. + + * An earlier fix to the shell prompt script (in contrib/) for using + the PROMPT_COMMAND interface did not correctly check if the extra + code path needs to trigger, causing the branch name not to appear + when 'promptvars' option is disabled in bash or PROMPT_SUBST is + unset in zsh. diff --git a/Documentation/RelNotes/1.9.5.txt b/Documentation/RelNotes/1.9.5.txt new file mode 100644 index 0000000000..8d6ac0cf53 --- /dev/null +++ b/Documentation/RelNotes/1.9.5.txt @@ -0,0 +1,34 @@ +Git v1.9.5 Release Notes +======================== + +Fixes since v1.9.4 +------------------ + + * We used to allow committing a path ".Git/config" with Git that is + running on a case sensitive filesystem, but an attempt to check out + such a path with Git that runs on a case insensitive filesystem + would have clobbered ".git/config", which is definitely not what + the user would have expected. Git now prevents you from tracking + a path with ".Git" (in any case combination) as a path component. + + * On Windows, certain path components that are different from ".git" + are mapped to ".git", e.g. "git~1/config" is treated as if it were + ".git/config". HFS+ has a similar issue, where certain unicode + codepoints are ignored, e.g. ".g\u200cit/config" is treated as if + it were ".git/config". Pathnames with these potential issues are + rejected on the affected systems. Git on systems that are not + affected by this issue (e.g. Linux) can also be configured to + reject them to ensure cross platform interoperability of the hosted + projects. + + * "git fsck" notices a tree object that records such a path that can + be confused with ".git", and with receive.fsckObjects configuration + set to true, an attempt to "git push" such a tree object will be + rejected. Such a path may not be a problem on a well behaving + filesystem but in order to protect those on HFS+ and on case + insensitive filesystems, this check is enabled on all platforms. + +A big "thanks!" for bringing this issue to us goes to our friends in +the Mercurial land, namely, Matt Mackall and Augie Fackler. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.0.0.txt b/Documentation/RelNotes/2.0.0.txt new file mode 100644 index 0000000000..2617372a0c --- /dev/null +++ b/Documentation/RelNotes/2.0.0.txt @@ -0,0 +1,364 @@ +Git v2.0 Release Notes +====================== + +Backward compatibility notes +---------------------------- + +When "git push [$there]" does not say what to push, we have used the +traditional "matching" semantics so far (all your branches were sent +to the remote as long as there already are branches of the same name +over there). In Git 2.0, the default is now the "simple" semantics, +which pushes: + + - only the current branch to the branch with the same name, and only + when the current branch is set to integrate with that remote + branch, if you are pushing to the same remote as you fetch from; or + + - only the current branch to the branch with the same name, if you + are pushing to a remote that is not where you usually fetch from. + +You can use the configuration variable "push.default" to change +this. If you are an old-timer who wants to keep using the +"matching" semantics, you can set the variable to "matching", for +example. Read the documentation for other possibilities. + +When "git add -u" and "git add -A" are run inside a subdirectory +without specifying which paths to add on the command line, they +operate on the entire tree for consistency with "git commit -a" and +other commands (these commands used to operate only on the current +subdirectory). Say "git add -u ." or "git add -A ." if you want to +limit the operation to the current directory. + +"git add <path>" is the same as "git add -A <path>" now, so that +"git add dir/" will notice paths you removed from the directory and +record the removal. In older versions of Git, "git add <path>" used +to ignore removals. You can say "git add --ignore-removal <path>" to +add only added or modified paths in <path>, if you really want to. + +The "-q" option to "git diff-files", which does *NOT* mean "quiet", +has been removed (it told Git to ignore deletion, which you can do +with "git diff-files --diff-filter=d"). + +"git request-pull" lost a few "heuristics" that often led to mistakes. + +The default prefix for "git svn" has changed in Git 2.0. For a long +time, "git svn" created its remote-tracking branches directly under +refs/remotes, but it now places them under refs/remotes/origin/ unless +it is told otherwise with its "--prefix" option. + + +Updates since v1.9 series +------------------------- + +UI, Workflows & Features + + * The "multi-mail" post-receive hook (in contrib/) has been updated + to a more recent version from upstream. + + * The "remote-hg/bzr" remote-helper interfaces (used to be in + contrib/) are no more. They are now maintained separately as + third-party plug-ins in their own repositories. + + * "git gc --aggressive" learned "--depth" option and + "gc.aggressiveDepth" configuration variable to allow use of a less + insane depth than the built-in default value of 250. + + * "git log" learned the "--show-linear-break" option to show where a + single strand-of-pearls is broken in its output. + + * The "rev-parse --parseopt" mechanism used by scripted Porcelains to + parse command-line options and to give help text learned to take + the argv-help (the placeholder string for an option parameter, + e.g. "key-id" in "--gpg-sign=<key-id>"). + + * The pattern to find where the function begins in C/C++ used in + "diff" and "grep -p" has been updated to improve viewing C++ + sources. + + * "git rebase" learned to interpret a lone "-" as "@{-1}", the + branch that we were previously on. + + * "git commit --cleanup=<mode>" learned a new mode, scissors. + + * "git tag --list" output can be sorted using "version sort" with + "--sort=version:refname". + + * Discard the accumulated "heuristics" to guess from which branch the + result wants to be pulled from and make sure that what the end user + specified is not second-guessed by "git request-pull", to avoid + mistakes. When you pushed out your 'master' branch to your public + repository as 'for-linus', use the new "master:for-linus" syntax to + denote the branch to be pulled. + + * "git grep" learned to behave in a way similar to native grep when + "-h" (no header) and "-c" (count) options are given. + + * "git push" via transport-helper interface has been updated to + allow forced ref updates in a way similar to the natively + supported transports. + + * The "simple" mode is the default for "git push". + + * "git add -u" and "git add -A", when run without any pathspec, is a + tree-wide operation even when run inside a subdirectory of a + working tree. + + * "git add <path>" is the same as "git add -A <path>" now. + + * "core.statinfo" configuration variable, which is a + never-advertised synonym to "core.checkstat", has been removed. + + * The "-q" option to "git diff-files", which does *NOT* mean + "quiet", has been removed (it told Git to ignore deletion, which + you can do with "git diff-files --diff-filter=d"). + + * Server operators can loosen the "tips of refs only" restriction for + the remote archive service with the uploadarchive.allowUnreachable + configuration option. + + * The progress indicators from various time-consuming commands have + been marked for i18n/l10n. + + * "git notes -C <blob>" diagnoses as an error an attempt to use an + object that is not a blob. + + * "git config" learned to read from the standard input when "-" is + given as the value to its "--file" parameter (attempting an + operation to update the configuration in the standard input is + rejected, of course). + + * Trailing whitespaces in .gitignore files, unless they are quoted + for fnmatch(3), e.g. "path\ ", are warned and ignored. Strictly + speaking, this is a backward-incompatible change, but very unlikely + to bite any sane user and adjusting should be obvious and easy. + + * Many commands that create commits, e.g. "pull" and "rebase", + learned to take the "--gpg-sign" option on the command line. + + * "git commit" can be told to always GPG sign the resulting commit + by setting the "commit.gpgsign" configuration variable to "true" + (the command-line option "--no-gpg-sign" should override it). + + * "git pull" can be told to only accept fast-forward by setting the + new "pull.ff" configuration variable. + + * "git reset" learned the "-N" option, which does not reset the index + fully for paths the index knows about but the tree-ish the command + resets to does not (these paths are kept as intend-to-add entries). + + +Performance, Internal Implementation, etc. + + * The compilation options to port to AIX and to MSVC have been + updated. + + * We started using wildmatch() in place of fnmatch(3) a few releases + ago; complete the process and stop using fnmatch(3). + + * Uses of curl's "multi" interface and "easy" interface do not mix + well when we attempt to reuse outgoing connections. Teach the RPC + over HTTP code, used in the smart HTTP transport, not to use the + "easy" interface. + + * The bitmap-index feature from JGit has been ported, which should + significantly improve performance when serving objects from a + repository that uses it. + + * The way "git log --cc" shows a combined diff against multiple + parents has been optimized. + + * The prefixcmp() and suffixcmp() functions are gone. Use + starts_with() and ends_with(), and also consider if skip_prefix() + suits your needs better when using the former. + + +Also contains various documentation updates and code clean-ups. Many +of them came from flurry of activities as GSoC candidate microproject +exercises. + + +Fixes since v1.9 series +----------------------- + +Unless otherwise noted, all the fixes since v1.9 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git p4" was broken in 1.9 release to deal with changes in binary + files. + (merge 749b668 cl/p4-use-diff-tree later to maint). + + * The shell prompt script (in contrib/), when using the PROMPT_COMMAND + interface, used an unsafe construct when showing the branch name in + $PS1. + (merge 1e4119c8 rh/prompt-pcmode-avoid-eval-on-refname later to maint). + + * "git rebase" used a POSIX shell construct FreeBSD's /bin/sh does not + work well with. + (merge 8cd6596 km/avoid-non-function-return-in-rebase later to maint). + + * zsh prompt (in contrib/) leaked unnecessary error messages. + + * Bash completion (in contrib/) did not complete the refs and remotes + correctly given "git pu<TAB>" when "pu" is aliased to "push". + + * Some more Unicode code points, defined in Unicode 6.3 as having zero + width, have been taught to our display column counting logic. + (merge d813ab9 tb/unicode-6.3-zero-width later to maint). + + * Some tests used shell constructs that did not work well on FreeBSD + (merge ff7a1c6 km/avoid-bs-in-shell-glob later to maint). + (merge 00764ca km/avoid-cp-a later to maint). + + * "git update-ref --stdin" did not fail a request to create a ref + when the ref already existed. + (merge b9d56b5 mh/update-ref-batch-create-fix later to maint). + + * "git diff --no-index -Mq a b" fell into an infinite loop. + (merge ad1c3fb jc/fix-diff-no-index-diff-opt-parse later to maint). + + * "git fetch --prune", when the right-hand side of multiple fetch + refspecs overlap (e.g. storing "refs/heads/*" to + "refs/remotes/origin/*", while storing "refs/frotz/*" to + "refs/remotes/origin/fr/*"), aggressively thought that lack of + "refs/heads/fr/otz" on the origin site meant we should remove + "refs/remotes/origin/fr/otz" from us, without checking their + "refs/frotz/otz" first. + + Note that such a configuration is inherently unsafe (think what + should happen when "refs/heads/fr/otz" does appear on the origin + site), but that is not a reason not to be extra careful. + (merge e6f6371 cn/fetch-prune-overlapping-destination later to maint). + + * "git status --porcelain --branch" showed its output with labels + "ahead/behind/gone" translated to the user's locale. + (merge 7a76c28 mm/status-porcelain-format-i18n-fix later to maint). + + * A stray environment variable $prefix could have leaked into and + affected the behaviour of the "subtree" script (in contrib/). + + * When it is not necessary to edit a commit log message (e.g. "git + commit -m" is given a message without specifying "-e"), we used to + disable the spawning of the editor by overriding GIT_EDITOR, but + this means all the uses of the editor, other than to edit the + commit log message, are also affected. + (merge b549be0 bp/commit-p-editor later to maint). + + * "git mv" that moves a submodule forgot to adjust the array that + uses to keep track of which submodules were to be moved to update + its configuration. + (merge fb8a4e8 jk/mv-submodules-fix later to maint). + + * Length limit for the pathname used when removing a path in a deep + subdirectory has been removed to avoid buffer overflows. + (merge 2f29e0c mh/remove-subtree-long-pathname-fix later to maint). + + * The test helper lib-terminal always run an actual test_expect_* + when included, which screwed up with the use of skil-all that may + have to be done later. + (merge 7e27173 jk/lib-terminal-lazy later to maint). + + * "git index-pack" used a wrong variable to name the keep-file in an + error message when the file cannot be written or closed. + (merge de983a0 nd/index-pack-error-message later to maint). + + * "rebase -i" produced a broken insn sheet when the title of a commit + happened to contain '\n' (or ended with '\c') due to a careless use + of 'echo'. + (merge cb1aefd us/printf-not-echo later to maint). + + * There were a few instances of 'git-foo' remaining in the + documentation that should have been spelled 'git foo'. + (merge 3c3e6f5 rr/doc-merge-strategies later to maint). + + * Serving objects from a shallow repository needs to write a + new file to hold the temporary shallow boundaries, but it was not + cleaned when we exit due to die() or a signal. + (merge 7839632 jk/shallow-update-fix later to maint). + + * When "git stash pop" stops after failing to apply the stash + (e.g. due to conflicting changes), the stash is not dropped. State + that explicitly in the output to let the users know. + (merge 2d4c993 jc/stash-pop-not-popped later to maint). + + * The labels in "git status" output that describe the nature of + conflicts (e.g. "both deleted") were limited to 20 bytes, which was + too short for some l10n (e.g. fr). + (merge c7cb333 jn/wt-status later to maint). + + * "git clean -d pathspec" did not use the given pathspec correctly + and ended up cleaning too much. + (merge 1f2e108 jk/clean-d-pathspec later to maint). + + * "git difftool" misbehaved when the repository is bound to the + working tree with the ".git file" mechanism, where a textual file + ".git" tells us where it is. + (merge fcfec8b da/difftool-git-files later to maint). + + * "git push" did not pay attention to "branch.*.pushremote" if it is + defined earlier than "remote.pushdefault"; the order of these two + variables in the configuration file should not matter, but it did + by mistake. + (merge 98b406f jk/remote-pushremote-config-reading later to maint). + + * Code paths that parse timestamps in commit objects have been + tightened. + (merge f80d1f9 jk/commit-dates-parsing-fix later to maint). + + * "git diff --external-diff" incorrectly fed the submodule directory + in the working tree to the external diff driver when it knew that it + is the same as one of the versions being compared. + (merge aba4727 tr/diff-submodule-no-reuse-worktree later to maint). + + * "git reset" needs to refresh the index when working in a working + tree (it can also be used to match the index to the HEAD in an + otherwise bare repository), but it failed to set up the working + tree properly, causing GIT_WORK_TREE to be ignored. + (merge b7756d4 nd/reset-setup-worktree later to maint). + + * "git check-attr" when working on a repository with a working tree + did not work well when the working tree was specified via the + "--work-tree" (and obviously with "--git-dir") option. + (merge cdbf623 jc/check-attr-honor-working-tree later to maint). + + * "merge-recursive" was broken in 1.7.7 era and stopped working in + an empty (temporary) working tree, when there are renames + involved. This has been corrected. + (merge 6e2068a bk/refresh-missing-ok-in-merge-recursive later to maint.) + + * "git rev-parse" was loose in rejecting command-line arguments + that do not make sense, e.g. "--default" without the required + value for that option. + (merge a43219f ds/rev-parse-required-args later to maint.) + + * "include.path" variable (or any variable that expects a path that + can use ~username expansion) in the configuration file is not a + boolean, but the code failed to check it. + (merge 67beb60 jk/config-path-include-fix later to maint.) + + * Commands that take pathspecs on the command line misbehaved when + the pathspec is given as an absolute pathname (which is a + practice not particularly encouraged) that points at a symbolic + link in the working tree. + (merge 6127ff6 mw/symlinks later to maint.) + + * "git diff --quiet -- pathspec1 pathspec2" sometimes did not return + the correct status value. + (merge f34b205 nd/diff-quiet-stat-dirty later to maint.) + + * Attempting to deepen a shallow repository by fetching over smart + HTTP transport failed in the protocol exchange, when the no-done + extension was used. The fetching side waited for the list of + shallow boundary commits after the sending side stopped talking to + it. + (merge 0232852 nd/http-fetch-shallow-fix later to maint.) + + * Allow "git cmd path/", when the 'path' is where a submodule is + bound to the top-level working tree, to match 'path', despite the + extra and unnecessary trailing slash (such a slash is often + given by command-line completion). + (merge 2e70c01 nd/submodule-pathspec-ending-with-slash later to maint.) + + * Documentation and in-code comments had many instances of mistaken + use of "nor", which have been corrected. + (merge 235e8d5 jl/nor-or-nand-and later to maint). diff --git a/Documentation/RelNotes/2.0.1.txt b/Documentation/RelNotes/2.0.1.txt new file mode 100644 index 0000000000..ce5579db3e --- /dev/null +++ b/Documentation/RelNotes/2.0.1.txt @@ -0,0 +1,115 @@ +Git v2.0.1 Release Notes +======================== + + * We used to unconditionally disable the pager in the pager process + we spawn to feed out output, but that prevented people who want to + run "less" within "less" from doing so. + + * Tools that read diagnostic output in our standard error stream do + not want to see terminal control sequence (e.g. erase-to-eol). + Detect them by checking if the standard error stream is connected + to a tty. + * Reworded the error message given upon a failure to open an existing + loose object file due to e.g. permission issues; it was reported as + the object being corrupt, but that is not quite true. + + * "git log -2master" is a common typo that shows two commits starting + from whichever random branch that is not 'master' that happens to + be checked out currently. + + * The "%<(10,trunc)%s" pretty format specifier in the log family of + commands is used to truncate the string to a given length (e.g. 10 + in the example) with padding to column-align the output, but did + not take into account that number of bytes and number of display + columns are different. + + * The "mailmap.file" configuration option did not support the tilde + expansion (i.e. ~user/path and ~/path). + + * The completion scripts (in contrib/) did not know about quite a few + options that are common between "git merge" and "git pull", and a + couple of options unique to "git merge". + + * "--ignore-space-change" option of "git apply" ignored the spaces + at the beginning of line too aggressively, which is inconsistent + with the option of the same name "diff" and "git diff" have. + + * "git blame" miscounted number of columns needed to show localized + timestamps, resulting in jaggy left-side-edge of the source code + lines in its output. + + * "git blame" assigned the blame to the copy in the working-tree if + the repository is set to core.autocrlf=input and the file used CRLF + line endings. + + * "git commit --allow-empty-message -C $commit" did not work when the + commit did not have any log message. + + * "git diff --find-copies-harder" sometimes pretended as if the mode + bits have changed for paths that are marked with assume-unchanged + bit. + + * "git format-patch" did not enforce the rule that the "--follow" + option from the log/diff family of commands must be used with + exactly one pathspec. + + * "git gc --auto" was recently changed to run in the background to + give control back early to the end-user sitting in front of the + terminal, but it forgot that housekeeping involving reflogs should + be done without other processes competing for accesses to the refs. + + * "git grep -O" to show the lines that hit in the pager did not work + well with case insensitive search. We now spawn "less" with its + "-I" option when it is used as the pager (which is the default). + + * We used to disable threaded "git index-pack" on platforms without + thread-safe pread(); use a different workaround for such + platforms to allow threaded "git index-pack". + + * The error reporting from "git index-pack" has been improved to + distinguish missing objects from type errors. + + * "git mailinfo" used to read beyond the end of header string while + parsing an incoming e-mail message to extract the patch. + + * On a case insensitive filesystem, merge-recursive incorrectly + deleted the file that is to be renamed to a name that is the same + except for case differences. + + * "git pack-objects" unnecessarily copied the previous contents when + extending the hashtable, even though it will populate the table + from scratch anyway. + + * "git rerere forget" did not work well when merge.conflictstyle + was set to a non-default value. + + * "git remote rm" and "git remote prune" can involve removing many + refs at once, which is not a very efficient thing to do when very + many refs exist in the packed-refs file. + + * "git log --exclude=<glob> --all | git shortlog" worked as expected, + but "git shortlog --exclude=<glob> --all", which is supposed to be + identical to the above pipeline, was not accepted at the command + line argument parser level. + + * The autostash mode of "git rebase -i" did not restore the dirty + working tree state if the user aborted the interactive rebase by + emptying the insn sheet. + + * "git show -s" (i.e. show log message only) used to incorrectly emit + an extra blank line after a merge commit. + + * "git status", even though it is a read-only operation, tries to + update the index with refreshed lstat(2) info to optimize future + accesses to the working tree opportunistically, but this could + race with a "read-write" operation that modify the index while it + is running. Detect such a race and avoid overwriting the index. + + * "git status" (and "git commit") behaved as if changes in a modified + submodule are not there if submodule.*.ignore configuration is set, + which was misleading. The configuration is only to unclutter diff + output during the course of development, and should not to hide + changes in the "status" output to cause the users forget to commit + them. + + * The mode to run tests with HTTP server tests disabled was broken. diff --git a/Documentation/RelNotes/2.0.2.txt b/Documentation/RelNotes/2.0.2.txt new file mode 100644 index 0000000000..8e8321b2ef --- /dev/null +++ b/Documentation/RelNotes/2.0.2.txt @@ -0,0 +1,32 @@ +Git v2.0.2 Release Notes +======================== + + * Documentation for "git submodule sync" forgot to say that the subcommand + can take the "--recursive" option. + + * Mishandling of patterns in .gitignore that has trailing SPs quoted + with backslashes (e.g. ones that end with "\ ") have been + corrected. + + * Recent updates to "git repack" started to duplicate objects that + are in packfiles marked with .keep flag into the new packfile by + mistake. + + * "git clone -b brefs/tags/bar" would have mistakenly thought we were + following a single tag, even though it was a name of the branch, + because it incorrectly used strstr(). + + * "%G" (nothing after G) is an invalid pretty format specifier, but + the parser did not notice it as garbage. + + * Code to avoid adding the same alternate object store twice was + subtly broken for a long time, but nobody seems to have noticed. + + * A handful of code paths had to read the commit object more than + once when showing header fields that are usually not parsed. The + internal data structure to keep track of the contents of the commit + object has been updated to reduce the need for this double-reading, + and to allow the caller find the length of the object. + + * During "git rebase --merge", a conflicted patch could not be + skipped with "--skip" if the next one also conflicted. diff --git a/Documentation/RelNotes/2.0.3.txt b/Documentation/RelNotes/2.0.3.txt new file mode 100644 index 0000000000..4047b46bbe --- /dev/null +++ b/Documentation/RelNotes/2.0.3.txt @@ -0,0 +1,17 @@ +Git v2.0.3 Release Notes +======================== + + * An ancient rewrite passed a wrong pointer to a curl library + function in a rarely used code path. + + * "filter-branch" left an empty single-parent commit that results when + all parents of a merge commit gets mapped to the same commit, even + under "--prune-empty". + + * "log --show-signature" incorrectly decided the color to paint a + mergetag that was and was not correctly validated. + + * "log --show-signature" did not pay attention to "--graph" option. + +Also a lot of fixes to the tests and some updates to the docs are +included. diff --git a/Documentation/RelNotes/2.0.4.txt b/Documentation/RelNotes/2.0.4.txt new file mode 100644 index 0000000000..7e340921a2 --- /dev/null +++ b/Documentation/RelNotes/2.0.4.txt @@ -0,0 +1,5 @@ +Git v2.0.4 Release Notes +======================== + + * An earlier update to v2.0.2 broken output from "git diff-tree", + which is fixed in this release. diff --git a/Documentation/RelNotes/2.0.5.txt b/Documentation/RelNotes/2.0.5.txt new file mode 100644 index 0000000000..3a16f697e8 --- /dev/null +++ b/Documentation/RelNotes/2.0.5.txt @@ -0,0 +1,34 @@ +Git v2.0.5 Release Notes +======================== + +Fixes since v2.0.4 +------------------ + + * We used to allow committing a path ".Git/config" with Git that is + running on a case sensitive filesystem, but an attempt to check out + such a path with Git that runs on a case insensitive filesystem + would have clobbered ".git/config", which is definitely not what + the user would have expected. Git now prevents you from tracking + a path with ".Git" (in any case combination) as a path component. + + * On Windows, certain path components that are different from ".git" + are mapped to ".git", e.g. "git~1/config" is treated as if it were + ".git/config". HFS+ has a similar issue, where certain unicode + codepoints are ignored, e.g. ".g\u200cit/config" is treated as if + it were ".git/config". Pathnames with these potential issues are + rejected on the affected systems. Git on systems that are not + affected by this issue (e.g. Linux) can also be configured to + reject them to ensure cross platform interoperability of the hosted + projects. + + * "git fsck" notices a tree object that records such a path that can + be confused with ".git", and with receive.fsckObjects configuration + set to true, an attempt to "git push" such a tree object will be + rejected. Such a path may not be a problem on a well behaving + filesystem but in order to protect those on HFS+ and on case + insensitive filesystems, this check is enabled on all platforms. + +A big "thanks!" for bringing this issue to us goes to our friends in +the Mercurial land, namely, Matt Mackall and Augie Fackler. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.1.0.txt b/Documentation/RelNotes/2.1.0.txt new file mode 100644 index 0000000000..ae4753728e --- /dev/null +++ b/Documentation/RelNotes/2.1.0.txt @@ -0,0 +1,391 @@ +Git v2.1 Release Notes +====================== + +Backward compatibility notes +---------------------------- + + * The default value we give to the environment variable LESS has been + changed from "FRSX" to "FRX", losing "S" (chop long lines instead + of wrapping). Existing users who prefer not to see line-wrapped + output may want to set + + $ git config core.pager "less -S" + + to restore the traditional behaviour. It is expected that people + find output from most subcommands easier to read with the new + default, except for "blame" which tends to produce really long + lines. To override the new default only for "git blame", you can + do this: + + $ git config pager.blame "less -S" + + * A few disused directories in contrib/ have been retired. + + +Updates since v2.0 +------------------ + +UI, Workflows & Features + + * Since the very beginning of Git, we gave the LESS environment a + default value "FRSX" when we spawn "less" as the pager. "S" (chop + long lines instead of wrapping) has been removed from this default + set of options, because it is more or less a personal taste thing, + as opposed to the others that have good justifications (i.e. "R" is + very much justified because many kinds of output we produce are + colored and "FX" is justified because output we produce is often + shorter than a page). + + * The logic and data used to compute the display width needed for + UTF-8 strings have been updated to match Unicode 7.0 better. + + * HTTP-based transports learned to better propagate the error messages from + the webserver to the client coming over the HTTP transport. + + * The completion script for bash (in contrib/) has been updated to + better handle aliases that define a complex sequence of commands. + + * The "core.preloadindex" configuration variable is enabled by default, + allowing modern platforms to take advantage of their + multiple cores. + + * "git clone" applies the "if cloning from a local disk, physically + copy the repository using hardlinks, unless otherwise told not to with + --no-local" optimization when the url.*.insteadOf mechanism rewrites a + remote-repository "git clone $URL" into a + clone from a local disk. + + * "git commit --date=<date>" option learned more + timestamp formats, including "--date=now". + + * The `core.commentChar` configuration variable is used to specify a + custom comment character (other than the default "#") for + the commit message editor. This can be set to `auto` to attempt to + choose a different character that does not conflict with any that + already starts a line in the message being edited, for cases like + "git commit --amend". + + * "git format-patch" learned --signature-file=<file> to add the contents + of a file as a signature to the mail message it produces. + + * "git grep" learned the grep.fullname configuration variable to force + "--full-name" to be the default. This may cause regressions for + scripted users who do not expect this new behaviour. + + * "git imap-send" learned to ask the credential helper for auth + material. + + * "git log" and friends now understand the value "auto" for the + "log.decorate" configuration variable to enable the "--decorate" + option automatically when the output is sent to tty. + + * "git merge" without an argument, even when there is an upstream + defined for the current branch, refused to run until + merge.defaultToUpstream is set to true. Flip the default of that + configuration variable to true. + + * "git mergetool" learned to drive the vimdiff3 backend. + + * mergetool.prompt used to default to 'true', always asking "do you + really want to run the tool on this path?". The default has been + changed to 'false'. However, the prompt will still appear if + mergetool used its autodetection system to guess which tool to use. + Users who explicitly specify or configure a tool will no longer see + the prompt by default. + + Strictly speaking, this is a backward incompatible change and + users need to explicitly set the variable to 'true' if they want + to be prompted to confirm running the tool on each path. + + * "git replace" learned the "--edit" subcommand to create a + replacement by editing an existing object. + + * "git replace" learned a "--graft" option to rewrite the parents of a + commit. + + * "git send-email" learned "--to-cover" and "--cc-cover" options, to + tell it to copy To: and Cc: headers found in the first input file + when emitting later input files. + + * "git svn" learned to cope with malformed timestamps with only one + digit in the hour part, e.g. 2014-01-07T5:01:02.048176Z, emitted + by some broken subversion server implementations. + + * "git tag" when editing the tag message shows the name of the tag + being edited as a comment in the editor. + + * "git tag" learned to pay attention to "tag.sort" configuration, to + be used as the default sort order when no --sort=<value> option + is given. + + * A new "git verify-commit" command, to check GPG signatures in signed + commits, in a way similar to "git verify-tag" is used to check + signed tags, was added. + + +Performance, Internal Implementation, etc. + + * Build procedure for 'subtree' (in contrib/) has been cleaned up. + + * Support for the profile-feedback build, which has + bit-rotted for quite a while, has been updated. + + * An experimental format to use two files (the base file and + incremental changes relative to it) to represent the index has been + introduced; this may reduce I/O cost of rewriting a large index + when only small part of the working tree changes. + + * Effort to shrink the size of patches Windows folks maintain on top + by upstreaming them continues. More tests that are not applicable + to the Windows environment are identified and either skipped or + made more portable. + + * Eradication of "test $condition -a $condition" from our scripts + continues. + + * The `core.deltabasecachelimit` used to default to 16 MiB , but this + proved to be too small, and has been bumped to 96 MiB. + + * "git blame" has been optimized greatly by reorganising the data + structure that is used to keep track of the work to be done. + + * "git diff" that compares 3-or-more trees (e.g. parents and the + result of a merge) has been optimized. + + * The API to update/delete references are being converted to handle + updates to multiple references in a transactional way. As an + example, "update-ref --stdin [-z]" has been updated to use this + API. + + * skip_prefix() and strip_suffix() API functions are used a lot more + widely throughout the codebase now. + + * Parts of the test scripts can be skipped by using a range notation, + e.g. "sh t1234-test.sh --run='1-4 6 8-'" to omit test piece 5 and 7 + and run everything else. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.0 +---------------- + +Unless otherwise noted, all the fixes since v2.0 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * We used to unconditionally disable the pager in the pager process + we spawn to feed out output, but that prevented people who want to + run "less" within "less" from doing so. + (merge c0459ca je/pager-do-not-recurse later to maint). + + * Tools that read diagnostic output in our standard error stream do + not want to see terminal control sequence (e.g. erase-to-eol). + Detect them by checking if the standard error stream is connected + to a tty. + (merge 38de156 mn/sideband-no-ansi later to maint). + + * Mishandling of patterns in .gitignore that have trailing SPs quoted + with backslashes (e.g. ones that end with "\ ") has been + corrected. + (merge 97c1364be6b pb/trim-trailing-spaces later to maint). + + * Reworded the error message given upon a failure to open an existing + loose object file due to e.g. permission issues; it was reported as + the object being corrupt, but that is not quite true. + (merge d6c8a05 jk/report-fail-to-read-objects-better later to maint). + + * "git log -2master" is a common typo that shows two commits starting + from whichever random branch that is not 'master' that happens to + be checked out currently. + (merge e3fa568 jc/revision-dash-count-parsing later to maint). + + * Code to avoid adding the same alternate object store twice was + subtly broken for a long time, but nobody seems to have noticed. + (merge 80b4785 rs/fix-alt-odb-path-comparison later to maint). + (merge 539e750 ek/alt-odb-entry-fix later to maint). + + * The "%<(10,trunc)%s" pretty format specifier in the log family of + commands is used to truncate the string to a given length (e.g. 10 + in the example) with padding to column-align the output, but did + not take into account that number of bytes and number of display + columns are different. + (merge 7d50987 as/pretty-truncate later to maint). + + * "%G" (nothing after G) is an invalid pretty format specifier, but + the parser did not notice it as garbage. + (merge 958b2eb jk/pretty-G-format-fixes later to maint). + + * A handful of code paths had to read the commit object more than + once when showing header fields that are usually not parsed. The + internal data structure to keep track of the contents of the commit + object has been updated to reduce the need for this double-reading, + and to allow the caller find the length of the object. + (merge 218aa3a jk/commit-buffer-length later to maint). + + * The "mailmap.file" configuration option did not support tilde + expansion (i.e. ~user/path and ~/path). + (merge 9352fd5 ow/config-mailmap-pathname later to maint). + + * The completion scripts (in contrib/) did not know about quite a few + options that are common between "git merge" and "git pull", and a + couple of options unique to "git merge". + (merge 8fee872 jk/complete-merge-pull later to maint). + + * The unix-domain socket used by the sample credential cache daemon + tried to unlink an existing stale one at a wrong path, if the path + to the socket was given as an overlong path that does not fit in + the sun_path member of the sockaddr_un structure. + (merge 2869b3e rs/fix-unlink-unix-socket later to maint). + + * An ancient rewrite passed a wrong pointer to a curl library + function in a rarely used code path. + (merge 479eaa8 ah/fix-http-push later to maint). + + * "--ignore-space-change" option of "git apply" ignored the spaces + at the beginning of lines too aggressively, which is inconsistent + with the option of the same name that "diff" and "git diff" have. + (merge 14d3bb4 jc/apply-ignore-whitespace later to maint). + + * "git blame" miscounted the number of columns needed to show localized + timestamps, resulting in a jaggy left-side-edge for the source code + lines in its output. + (merge dd75553 jx/blame-align-relative-time later to maint). + + * "git blame" assigned the blame to the copy in the working-tree if + the repository is set to core.autocrlf=input and the file used CRLF + line endings. + (merge 4d4813a bc/blame-crlf-test later to maint). + + * "git clone -b brefs/tags/bar" would have mistakenly thought we were + following a single tag, even though it was a name of the branch, + because it incorrectly used strstr(). + (merge 60a5f5f jc/fix-clone-single-starting-at-a-tag later to maint). + + * "git commit --allow-empty-message -C $commit" did not work when the + commit did not have any log message. + (merge 076cbd6 jk/commit-C-pick-empty later to maint). + + * "git diff --find-copies-harder" sometimes pretended as if the mode + bits have changed for paths that are marked with the assume-unchanged + bit. + (merge 5304810 jk/diff-files-assume-unchanged later to maint). + + * "filter-branch" left an empty single-parent commit that results when + all parents of a merge commit get mapped to the same commit, even + under "--prune-empty". + (merge 79bc4ef cb/filter-branch-prune-empty-degenerate-merges later to maint). + + * "git format-patch" did not enforce the rule that the "--follow" + option from the log/diff family of commands must be used with + exactly one pathspec. + (merge dd63f16 jk/diff-follow-must-take-one-pathspec later to maint). + + * "git gc --auto" was recently changed to run in the background to + give control back early to the end-user sitting in front of the + terminal, but it forgot that housekeeping involving reflogs should + be done without other processes competing for accesses to the refs. + (merge 62aad18 nd/daemonize-gc later to maint). + + * "git grep -O" to show the lines that hit in the pager did not work + well with case insensitive search. We now spawn "less" with its + "-I" option when it is used as the pager (which is the default). + (merge f7febbe sk/spawn-less-case-insensitively-from-grep-O-i later to maint). + + * We used to disable threaded "git index-pack" on platforms without + thread-safe pread(); use a different workaround for such + platforms to allow threaded "git index-pack". + (merge 3953949 nd/index-pack-one-fd-per-thread later to maint). + + * The error reporting from "git index-pack" has been improved to + distinguish missing objects from type errors. + (merge 77583e7 jk/index-pack-report-missing later to maint). + + * "log --show-signature" incorrectly decided the color to paint a + mergetag that was and was not correctly validated. + (merge 42c55ce mg/fix-log-mergetag-color later to maint). + + * "log --show-signature" did not pay attention to the "--graph" option. + (merge cf3983d zk/log-graph-showsig later to maint). + + * "git mailinfo" used to read beyond the ends of header strings while + parsing an incoming e-mail message to extract the patch. + (merge b1a013d rs/mailinfo-header-cmp later to maint). + + * On a case insensitive filesystem, merge-recursive incorrectly + deleted the file that is to be renamed to a name that is the same + except for case differences. + (merge baa37bf dt/merge-recursive-case-insensitive later to maint). + + * Merging changes into a file that ends in an incomplete line made the + last line into a complete one, even when the other branch did not + change anything around the end of file. + (merge ba31180 mk/merge-incomplete-files later to maint). + + * "git pack-objects" unnecessarily copied the previous contents when + extending the hashtable, even though it will populate the table + from scratch anyway. + (merge fb79947 rs/pack-objects-no-unnecessary-realloc later to maint). + + * Recent updates to "git repack" started to duplicate objects that + are in packfiles marked with the .keep flag into the new packfile by + mistake. + (merge d078d85 jk/repack-pack-keep-objects later to maint). + + * "git rerere forget" did not work well when merge.conflictstyle + was set to a non-default value. + (merge de3d8bb fc/rerere-conflict-style later to maint). + + * "git remote rm" and "git remote prune" can involve removing many + refs at once, which is not a very efficient thing to do when very + many refs exist in the packed-refs file. + (merge e6bea66 jl/remote-rm-prune later to maint). + + * "git log --exclude=<glob> --all | git shortlog" worked as expected, + but "git shortlog --exclude=<glob> --all", which is supposed to be + identical to the above pipeline, was not accepted at the command + line argument parser level. + (merge eb07774 jc/shortlog-ref-exclude later to maint). + + * The autostash mode of "git rebase -i" did not restore the dirty + working tree state if the user aborted the interactive rebase by + emptying the insn sheet. + (merge ddb5432 rr/rebase-autostash-fix later to maint). + + * "git rebase --fork-point" did not filter out patch-identical + commits correctly. + + * During "git rebase --merge", a conflicted patch could not be + skipped with "--skip" if the next one also conflicted. + (merge 95104c7 bc/fix-rebase-merge-skip later to maint). + + * "git show -s" (i.e. show log message only) used to incorrectly emit + an extra blank line after a merge commit. + (merge ad2f725 mk/show-s-no-extra-blank-line-for-merges later to maint). + + * "git status", even though it is a read-only operation, tries to + update the index with refreshed lstat(2) info to optimize future + accesses to the working tree opportunistically, but this could + race with a "read-write" operation that modifies the index while it + is running. Detect such a race and avoid overwriting the index. + (merge 426ddee ym/fix-opportunistic-index-update-race later to maint). + + * "git status" (and "git commit") behaved as if changes in a modified + submodule are not there if submodule.*.ignore configuration is set, + which was misleading. The configuration is only to unclutter diff + output during the course of development, and not to hide + changes in the "status" output to cause the users forget to commit + them. + (merge c215d3d jl/status-added-submodule-is-never-ignored later to maint). + + * Documentation for "git submodule sync" forgot to say that the subcommand + can take the "--recursive" option. + (merge 9393ae7 mc/doc-submodule-sync-recurse later to maint). + + * "git update-index --cacheinfo" in 2.0 release crashed on a + malformed command line. + (merge c8e1ee4 jc/rev-parse-argh-dashed-multi-words later to maint). + + * The mode to run tests with HTTP server tests disabled was broken. + (merge afa53fe na/no-http-test-in-the-middle later to maint). diff --git a/Documentation/RelNotes/2.1.1.txt b/Documentation/RelNotes/2.1.1.txt new file mode 100644 index 0000000000..830fc3cc6d --- /dev/null +++ b/Documentation/RelNotes/2.1.1.txt @@ -0,0 +1,44 @@ +Git v2.1.1 Release Notes +======================== + + * Git 2.0 had a regression where "git fetch" into a shallowly + cloned repository from a repository with bitmap object index + enabled did not work correctly. This has been corrected. + + * Git 2.0 had a regression which broke (rarely used) "git diff-tree + -t". This has been corrected. + + * "git log --pretty/format=" with an empty format string did not + mean the more obvious "No output whatsoever" but "Use default + format", which was counterintuitive. Now it means "nothing shown + for the log message part". + + * "git -c section.var command" and "git -c section.var= command" + should pass the configuration differently (the former should be a + boolean true, the latter should be an empty string), but they + didn't work that way. Now it does. + + * Applying a patch not generated by Git in a subdirectory used to + check the whitespace breakage using the attributes for incorrect + paths. Also whitespace checks were performed even for paths + excluded via "git apply --exclude=<path>" mechanism. + + * "git bundle create" with date-range specification were meant to + exclude tags outside the range, but it did not work correctly. + + * "git add x" where x that used to be a directory has become a + symbolic link to a directory misbehaved. + + * The prompt script checked $GIT_DIR/ref/stash file to see if there + is a stash, which was a no-no. + + * "git checkout -m" did not switch to another branch while carrying + the local changes forward when a path was deleted from the index. + + * With sufficiently long refnames, fast-import could have overflown + an on-stack buffer. + + * After "pack-refs --prune" packed refs at the top-level, it failed + to prune them. + + * "git gc --auto" triggered from "git fetch --quiet" was not quiet. diff --git a/Documentation/RelNotes/2.1.2.txt b/Documentation/RelNotes/2.1.2.txt new file mode 100644 index 0000000000..abc3b8928a --- /dev/null +++ b/Documentation/RelNotes/2.1.2.txt @@ -0,0 +1,20 @@ +Git v2.1.2 Release Notes +======================== + + * "git push" over HTTP transport had an artificial limit on number of + refs that can be pushed imposed by the command line length. + + * When receiving an invalid pack stream that records the same object + twice, multiple threads got confused due to a race. + + * An attempt to remove the entire tree in the "git fast-import" input + stream caused it to misbehave. + + * Reachability check (used in "git prune" and friends) did not add a + detached HEAD as a starting point to traverse objects still in use. + + * "git config --add section.var val" used to lose existing + section.var whose value was an empty string. + + * "git fsck" failed to report that it found corrupt objects via its + exit status in some cases. diff --git a/Documentation/RelNotes/2.1.3.txt b/Documentation/RelNotes/2.1.3.txt new file mode 100644 index 0000000000..acc9ebb886 --- /dev/null +++ b/Documentation/RelNotes/2.1.3.txt @@ -0,0 +1,26 @@ +Git v2.1.3 Release Notes +======================== + + * Some MUAs mangled a line in a message that begins with "From " to + ">From " when writing to a mailbox file and feeding such an input to + "git am" used to lose such a line. + + * "git daemon" (with NO_IPV6 build configuration) used to incorrectly + use the hostname even when gethostbyname() reported that the given + hostname is not found. + + * Newer versions of 'meld' breaks the auto-detection we use to see if + they are new enough to support the `--output` option. + + * "git pack-objects" forgot to disable the codepath to generate + object recheability bitmap when it needs to split the resulting + pack. + + * "gitweb" used deprecated CGI::startfrom, which was removed from + CGI.pm as of 4.04; use CGI::start_from instead. + + * "git log" documentation had an example section marked up not + quite correctly, which passed AsciiDoc but failed with + AsciiDoctor. + +Also contains some documentation updates. diff --git a/Documentation/RelNotes/2.1.4.txt b/Documentation/RelNotes/2.1.4.txt new file mode 100644 index 0000000000..d16e5f041f --- /dev/null +++ b/Documentation/RelNotes/2.1.4.txt @@ -0,0 +1,34 @@ +Git v2.1.4 Release Notes +======================== + +Fixes since v2.1.3 +------------------ + + * We used to allow committing a path ".Git/config" with Git that is + running on a case sensitive filesystem, but an attempt to check out + such a path with Git that runs on a case insensitive filesystem + would have clobbered ".git/config", which is definitely not what + the user would have expected. Git now prevents you from tracking + a path with ".Git" (in any case combination) as a path component. + + * On Windows, certain path components that are different from ".git" + are mapped to ".git", e.g. "git~1/config" is treated as if it were + ".git/config". HFS+ has a similar issue, where certain unicode + codepoints are ignored, e.g. ".g\u200cit/config" is treated as if + it were ".git/config". Pathnames with these potential issues are + rejected on the affected systems. Git on systems that are not + affected by this issue (e.g. Linux) can also be configured to + reject them to ensure cross platform interoperability of the hosted + projects. + + * "git fsck" notices a tree object that records such a path that can + be confused with ".git", and with receive.fsckObjects configuration + set to true, an attempt to "git push" such a tree object will be + rejected. Such a path may not be a problem on a well behaving + filesystem but in order to protect those on HFS+ and on case + insensitive filesystems, this check is enabled on all platforms. + +A big "thanks!" for bringing this issue to us goes to our friends in +the Mercurial land, namely, Matt Mackall and Augie Fackler. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.2.0.txt b/Documentation/RelNotes/2.2.0.txt new file mode 100644 index 0000000000..e98ecbcff6 --- /dev/null +++ b/Documentation/RelNotes/2.2.0.txt @@ -0,0 +1,313 @@ +Git v2.2 Release Notes +====================== + +Updates since v2.1 +------------------ + +Ports + + * Building on older MacOS X systems automatically sets + the necessary NO_APPLE_COMMON_CRYPTO build-time option. + + * Building with NO_PTHREADS has been resurrected. + + * Compilation options have been updated a bit to better support the + z/OS port. + + +UI, Workflows & Features + + * "git archive" learned to filter what gets archived with a pathspec. + + * "git config --edit --global" starts from a skeletal per-user + configuration file contents, instead of a total blank, when the + user does not already have any global config. This immediately + reduces the need to later ask "Have you forgotten to set + core.user?", and we can add more to the template as we gain + more experience. + + * "git stash list -p" used to be almost always a no-op because each + stash entry is represented as a merge commit. It learned to show + the difference between the base commit version and the working tree + version, which is in line with what "git stash show" gives. + + * Sometimes users want to report a bug they experience on their + repository, but they are not at liberty to share the contents of + the repository. "fast-export" was taught an "--anonymize" option + to replace blob contents, names of people, paths and log + messages with bland and simple strings to help them. + + * "git difftool" learned an option to stop feeding paths to the + diff backend when it exits with a non-zero status. + + * "git grep" learned to paint (or not paint) partial matches on + context lines when showing "grep -C<num>" output in color. + + * "log --date=iso" uses a slight variant of the ISO 8601 format that is + more human readable. A new "--date=iso-strict" option gives + datetime output that conforms more strictly. + + * The logic "git prune" uses is more resilient against various corner + cases. + + * A broken reimplementation of Git could write an invalid index that + records both stage #0 and higher-stage entries for the same path. + We now notice and reject such an index, as there is no sensible + fallback (we do not know if the broken tool wanted to resolve and + forgot to remove the higher-stage entries, or if it wanted to unresolve + and forgot to remove the stage #0 entry). + + * The temporary files "git mergetool" uses are renamed to avoid too + many dots in them (e.g. a temporary file for "hello.c" used to be + named e.g. "hello.BASE.4321.c" but now uses underscore instead, + e.g. "hello_BASE_4321.c", to allow us to have multiple variants). + + * The temporary files "git mergetool" uses can be placed in a newly + created temporary directory, instead of the current directory, by + setting the mergetool.writeToTemp configuration variable. + + * "git mergetool" understands "--tool bc" now, as version 4 of + BeyondCompare can be driven the same way as its version 3 and it + feels awkward to say "--tool bc3" to run version 4. + + * The "pre-receive" and "post-receive" hooks are no longer required + to consume their input fully (not following this requirement used + to result in intermittent errors in "git push"). + + * The pretty-format specifier "%d", which expands to " (tagname)" + for a tagged commit, gained a cousin "%D" that just gives the + "tagname" without frills. + + * "git push" learned "--signed" push, that allows a push (i.e. + request to update the refs on the other side to point at a new + history, together with the transmission of necessary objects) to be + signed, so that it can be verified and audited, using the GPG + signature of the person who pushed, that the tips of branches at a + public repository really point the commits the pusher wanted to, + without having to "trust" the server. + + * "git interpret-trailers" is a new filter to programmatically edit + the tail end of the commit log messages, e.g. "Signed-off-by:". + + * "git help everyday" shows the "Everyday Git in 20 commands or so" + document, whose contents have been updated to match more modern + Git practice. + + * On the "git svn" front, work progresses to reduce memory consumption and + to improve handling of mergeinfo. + + +Performance, Internal Implementation, Development Support etc. + + * The API to manipulate the "refs" has been restructured to make it + more transactional, with the eventual goal to allow all-or-none + atomic updates and migrating the storage to something other than + the traditional filesystem based one (e.g. databases). + + * The lockfile API and its users have been cleaned up. + + * We no longer attempt to keep track of individual dependencies to + the header files in the build procedure, relying instead on automated + dependency generation support from modern compilers. + + * In tests, we have been using NOT_{MINGW,CYGWIN} test prerequisites + long before negated prerequisites e.g. !MINGW were invented. + The former has been converted to the latter to avoid confusion. + + * Optimized looking up a remote's configuration in a repository with very many + remotes defined. + + * There are cases where you lock and open to write a file, close it + to show the updated contents to an external processes, and then have + to update the file again while still holding the lock; now the + lockfile API has support for such an access pattern. + + * The API to allocate the structure to keep track of commit + decoration has been updated to make it less cumbersome to use. + + * An in-core caching layer to let us avoid reading the same + configuration files several times has been added. A few commands + have been converted to use this subsystem. + + * Various code paths have been cleaned up and simplified by using + the "strbuf", "starts_with()", and "skip_prefix()" APIs more. + + * A few codepaths that died when large blobs that would not fit in + core are involved in their operation have been taught to punt + instead, by e.g. marking a too-large blob as not to be diffed. + + * A few more code paths in "commit" and "checkout" have been taught + to repopulate the cache-tree in the index, to help speed up later + "write-tree" (used in "commit") and "diff-index --cached" (used in + "status"). + + * A common programming mistake to assign the same short option name + to two separate options is detected by the parse_options() API to help + developers. + + * The code path to write out the packed-refs file has been optimized, + which especially matters in a repository with a large number of + refs. + + * The check to see if a ref $F can be created by making sure no + existing ref has $F/ as its prefix has been optimized, which + especially matters in a repository with a large number of existing + refs. + + * "git fsck" was taught to check the contents of tag objects a bit more. + + * "git hash-object" was taught a "--literally" option to help + debugging. + + * When running a required clean filter, we do not have to mmap the + original before feeding the filter. Instead, stream the file + contents directly to the filter and process its output. + + * The scripts in the test suite can be run with the "-x" option to show + a shell-trace of each command they run. + + * The "run-command" API learned to manage the argv and environment + arrays for child process, alleviating the need for the callers to + allocate and deallocate them. + + * Some people use AsciiDoctor, instead of AsciiDoc, to format our + documentation set; the documentation has been adjusted to be usable + by both, as AsciiDoctor is pickier than AsciiDoc about its input + mark-up. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.1 +---------------- + +Unless otherwise noted, all the fixes since v2.1 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git log --pretty/format=" with an empty format string did not + mean the more obvious "No output whatsoever" but "Use default + format", which was counterintuitive. + + * "git -c section.var command" and "git -c section.var= command" + should pass the configuration value differently (the former should be a + boolean true, the latter should be an empty string). + + * Applying a patch not generated by Git in a subdirectory used to + check for whitespace breakage using the attributes of incorrect + paths. Also whitespace checks were performed even for paths + excluded via the "git apply --exclude=<path>" mechanism. + + * "git bundle create" with a date-range specification was meant to + exclude tags outside the range, but it didn't. + + * "git add x" where x used to be a directory and is now a + symbolic link to a directory misbehaved. + + * The prompt script checked the $GIT_DIR/ref/stash file to see if there + is a stash, which was a no-no. + + * Pack-protocol documentation had a minor typo. + + * "git checkout -m" did not switch to another branch while carrying + the local changes forward when a path was deleted from the index. + + * "git daemon" (with NO_IPV6 build configuration) used to incorrectly + use the hostname even when gethostbyname() reported that the given + hostname is not found. + (merge 107efbe rs/daemon-fixes later to maint). + + * With sufficiently long refnames, "git fast-import" could have + overflowed an on-stack buffer. + + * After "pack-refs --prune" packed refs at the top-level, it failed + to prune them. + + * Progress output from "git gc --auto" was visible in "git fetch -q". + + * We used to pass -1000 to poll(2), expecting it to also mean "no + timeout", which should be spelled as -1. + + * "git rebase" documentation was unclear that it is required to + specify on what <upstream> the rebase is to be done when telling it + to first check out <branch>. + (merge 95c6826 so/rebase-doc later to maint). + + * "git push" over HTTP transport had an artificial limit on the number of + refs that can be pushed, imposed by the command line length. + (merge 26be19b jk/send-pack-many-refspecs later to maint). + + * When receiving an invalid pack stream that records the same object + twice, multiple threads got confused due to a race. + (merge ab791dd jk/index-pack-threading-races later to maint). + + * An attempt to remove the entire tree in the "git fast-import" input + stream caused it to misbehave. + (merge 2668d69 mb/fast-import-delete-root later to maint). + + * Reachability check (used in "git prune" and friends) did not add a + detached HEAD as a starting point to traverse objects still in use. + (merge c40fdd0 mk/reachable-protect-detached-head later to maint). + + * "git config --add section.var val" when section.var already has an + empty-string value used to lose the empty-string value. + (merge c1063be ta/config-add-to-empty-or-true-fix later to maint). + + * "git fsck" failed to report that it found corrupt objects via its + exit status in some cases. + (merge 30d1038 jk/fsck-exit-code-fix later to maint). + + * Use of the "--verbose" option used to break "git branch --merged". + (merge 12994dd jk/maint-branch-verbose-merged later to maint). + + * Some MUAs mangle a line in a message that begins with "From " to + ">From " when writing to a mailbox file, and feeding such an input + to "git am" used to lose such a line. + (merge 85de86a jk/mbox-from-line later to maint). + + * "rev-parse --verify --quiet $name" is meant to quietly exit with a + non-zero status when $name is not a valid object name, but still + gave error messages in some cases. + + * A handful of C source files have been updated to include + "git-compat-util.h" as the first thing, to conform better to our + coding guidelines. + (merge 1c4b660 da/include-compat-util-first-in-c later to maint). + + * The t7004 test, which tried to run Git with small stack space, has been + updated to use a bit larger stack to avoid false breakage on some + platforms. + (merge b9a1907 sk/tag-contains-wo-recursion later to maint). + + * A few documentation pages had example sections marked up not quite + correctly, which passed AsciiDoc but failed with AsciiDoctor. + (merge c30c43c bc/asciidoc-pretty-formats-fix later to maint). + (merge f8a48af bc/asciidoc later to maint). + + * "gitweb" used deprecated CGI::startfrom, which was removed from + CGI.pm as of 4.04; use CGI::start_from instead. + (merge 4750f4b rm/gitweb-start-form later to maint). + + * Newer versions of 'meld' break the auto-detection we use to see if + they are new enough to support the `--output` option. + (merge b12d045 da/mergetool-meld later to maint). + + * "git pack-objects" forgot to disable the codepath to generate the + object reachability bitmap when it needs to split the resulting + pack. + (merge 2113471 jk/pack-objects-no-bitmap-when-splitting later to maint). + + * The code to use cache-tree trusted the on-disk data too much and + fell into an infinite loop upon seeing an incorrectly recorded + index file. + (merge 729dbbd jk/cache-tree-protect-from-broken-libgit2 later to maint). + + * "git fetch" into a repository where branch B was deleted earlier, + back when it had reflog enabled, and then branch B/C is fetched + into it without reflog enabled, which is arguably an unlikely + corner case, unnecessarily failed. + (merge aae828b jk/fetch-reflog-df-conflict later to maint). + + * "git log --first-parent -L..." used to crash. + (merge a8787c5 tm/line-log-first-parent later to maint). diff --git a/Documentation/RelNotes/2.2.1.txt b/Documentation/RelNotes/2.2.1.txt new file mode 100644 index 0000000000..d5a3cd9e73 --- /dev/null +++ b/Documentation/RelNotes/2.2.1.txt @@ -0,0 +1,34 @@ +Git v2.2.1 Release Notes +======================== + +Fixes since v2.2 +---------------- + + * We used to allow committing a path ".Git/config" with Git that is + running on a case sensitive filesystem, but an attempt to check out + such a path with Git that runs on a case insensitive filesystem + would have clobbered ".git/config", which is definitely not what + the user would have expected. Git now prevents you from tracking + a path with ".Git" (in any case combination) as a path component. + + * On Windows, certain path components that are different from ".git" + are mapped to ".git", e.g. "git~1/config" is treated as if it were + ".git/config". HFS+ has a similar issue, where certain unicode + codepoints are ignored, e.g. ".g\u200cit/config" is treated as if + it were ".git/config". Pathnames with these potential issues are + rejected on the affected systems. Git on systems that are not + affected by this issue (e.g. Linux) can also be configured to + reject them to ensure cross platform interoperability of the hosted + projects. + + * "git fsck" notices a tree object that records such a path that can + be confused with ".git", and with receive.fsckObjects configuration + set to true, an attempt to "git push" such a tree object will be + rejected. Such a path may not be a problem on a well behaving + filesystem but in order to protect those on HFS+ and on case + insensitive filesystems, this check is enabled on all platforms. + +A big "thanks!" for bringing this issue to us goes to our friends in +the Mercurial land, namely, Matt Mackall and Augie Fackler. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.2.2.txt b/Documentation/RelNotes/2.2.2.txt new file mode 100644 index 0000000000..b19a35d94f --- /dev/null +++ b/Documentation/RelNotes/2.2.2.txt @@ -0,0 +1,63 @@ +Git v2.2.2 Release Notes +======================== + +Fixes since v2.2.1 +------------------ + + * "git checkout $treeish $path", when $path in the index and the + working tree already matched what is in $treeish at the $path, + still overwrote the $path unnecessarily. + + * "git config --get-color" did not parse its command line arguments + carefully. + + * open() emulated on Windows platforms did not give EISDIR upon + an attempt to open a directory for writing. + + * A few code paths used abs() when they should have used labs() on + long integers. + + * "gitweb" used to depend on a behaviour recent CGI.pm deprecated. + + * "git init" (hence "git clone") initialized the per-repository + configuration file .git/config with x-bit by mistake. + + * Git 2.0 was supposed to make the "simple" mode for the default of + "git push", but it didn't. + + * "Everyday" document had a broken link. + + * The build procedure did not bother fixing perl and python scripts + when NO_PERL and NO_PYTHON build-time configuration changed. + + * The code that reads the reflog from the newer to the older entries + did not handle an entry that crosses a boundary of block it uses to + read them correctly. + + * "git apply" was described in the documentation to take --ignore-date + option, which it does not. + + * Traditionally we tried to avoid interpreting date strings given by + the user as future dates, e.g. GIT_COMMITTER_DATE=2014-12-10 when + used early November 2014 was taken as "October 12, 2014" because it + is likely that a date in the future, December 10, is a mistake. + This heuristics has been loosened to allow people to express future + dates (most notably, --until=<date> may want to be far in the + future) and we no longer tiebreak by future-ness of the date when + + (1) ISO-like format is used, and + (2) the string can make sense interpreted as both y-m-d and y-d-m. + + Git may still have to use the heuristics to tiebreak between dd/mm/yy + and mm/dd/yy, though. + + * The code to abbreviate an object name to its short unique prefix + has been optimized when no abbreviation was requested. + + * "git add --ignore-errors ..." did not ignore an error to + give a file that did not exist. + + * Git did not correctly read an overlong refname from a packed refs + file. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.0.txt b/Documentation/RelNotes/2.3.0.txt new file mode 100644 index 0000000000..e3c639c840 --- /dev/null +++ b/Documentation/RelNotes/2.3.0.txt @@ -0,0 +1,300 @@ +Git v2.3 Release Notes +====================== + +This one ended up to be a release with lots of small corrections and +improvements without big uncomfortably exciting features. The recent +security fix that went to 2.2.1 and older maintenance tracks is also +contained in this update. + + +Updates since v2.2 +------------------ + +Ports + + * Recent gcc toolchain on Cygwin started throwing compilation warning, + which has been squelched. + + * A few updates to build on platforms that lack tv_nsec, + clock_gettime, CLOCK_MONOTONIC and HMAC_CTX_cleanup (e.g. older + RHEL) have been added. + + +UI, Workflows & Features + + * It was cumbersome to use "GIT_SSH" mechanism when the user wanted + to pass an extra set of arguments to the underlying ssh. A new + environment variable GIT_SSH_COMMAND can be used for this. + + * A request to store an empty note via "git notes" meant to remove + note from the object but with --allow-empty we will store a + (surprise!) note that is empty. + + * "git interpret-trailers" learned to properly handle the + "Conflicts:" block at the end. + + * "git am" learned "--message-id" option to copy the message ID of + the incoming e-mail to the log message of resulting commit. + + * "git clone --reference=<over there>" learned the "--dissociate" + option to go with it; it borrows objects from the reference object + store while cloning only to reduce network traffic and then + dissociates the resulting clone from the reference by performing + local copies of borrowed objects. + + * "git send-email" learned "--transfer-encoding" option to force a + non-fault Content-Transfer-Encoding header (e.g. base64). + + * "git send-email" normally identifies itself via X-Mailer: header in + the message it sends out. A new command line flag --no-xmailer + allows the user to squelch the header. + + * "git push" into a repository with a working tree normally refuses + to modify the branch that is checked out. The command learned to + optionally do an equivalent of "git reset --hard" only when there + is no change to the working tree and the index instead, which would + be useful to "deploy" by pushing into a repository. + + * "git new-workdir" (in contrib/) can be used to populate an empty + and existing directory now. + + * Credential helpers are asked in turn until one of them give + positive response, which is cumbersome to turn off when you need to + run Git in an automated setting. The credential helper interface + learned to allow a helper to say "stop, don't ask other helpers." + Also GIT_TERMINAL_PROMPT environment can be set to false to disable + our built-in prompt mechanism for passwords. + + * "git branch -d" (delete) and "git branch -m" (move) learned to + honor "-f" (force) flag; unlike many other subcommands, the way to + force these have been with separate "-D/-M" options, which was + inconsistent. + + * "diff-highlight" filter (in contrib/) allows its color output to be + customized via configuration variables. + + * "git imap-send" learned to take "-v" (verbose) and "-q" (quiet) + command line options. + + * "git remote add $name $URL" is now allowed when "url.$URL.insteadOf" + is already defined. + + * "git imap-send" now can be built to use cURL library to talk to + IMAP servers (if the library is recent enough, of course). + This allows you to use authenticate method other than CRAM-MD5, + among other things. + + * "git imap-send" now allows GIT_CURL_VERBOSE environment variable to + control the verbosity when talking via the cURL library. + + * The prompt script (in contrib/) learned to optionally hide prompt + when in an ignored directory by setting GIT_PS1_HIDE_IF_PWD_IGNORED + shell variable. + + +Performance, Internal Implementation, Development Support etc. + + * Earlier we made "rev-list --object-edge" more aggressively list the + objects at the edge commits, in order to reduce number of objects　 + fetched into a shallow repository, but the change affected cases + other than "fetching into a shallow repository" and made it + unusably slow (e.g. fetching into a normal repository should not + have to suffer the overhead from extra processing). Limit it to a + more specific case by introducing --objects-edge-aggressive, a new + option to rev-list. + + * Squelched useless compiler warnings on Mac OS X regarding the + crypto API. + + * The procedure to generate unicode table has been simplified. + + * Some filesystems assign filemodes in a strange way, fooling then + automatic "filemode trustability" check done during a new + repository creation. The initialization codepath has been hardened + against this issue. + + * The codepath in "git remote update --prune" to drop many refs has + been optimized. + + * The API into get_merge_bases*() family of functions was easy to + misuse, which has been corrected to make it harder to do so. + + * Long overdue departure from the assumption that S_IFMT is shared by + everybody made in 2005, which was necessary to port to z/OS. + + * "git push" and "git fetch" did not communicate an overlong refname + correctly. Now it uses 64kB sideband to accommodate longer ones. + + * Recent GPG changes the keyring format and drops support for RFC1991 + formatted signatures, breaking our existing tests. + + * "git-prompt" (in contrib/) used a variable from the global scope, + possibly contaminating end-user's namespace. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.2 +---------------- + +Unless otherwise noted, all the fixes since v2.2 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git http-push" over WebDAV (aka dumb http-push) was broken in + v2.2.2 when parsing a symbolic ref, resulting in a bogus request + that gets rejected by recent versions of cURL library. + (merge f6786c8 jk/http-push-symref-fix later to maint). + + * The logic in "git bisect bad HEAD" etc. to avoid forcing the test + of the common ancestor of bad and good commits was broken. + (merge 07913d5 cc/bisect-rev-parsing later to maint). + + * "git checkout-index --temp=$target $path" did not work correctly + for paths outside the current subdirectory in the project. + (merge 74c4de5 es/checkout-index-temp later to maint). + + * The report from "git checkout" on a branch that builds on another + local branch by setting its branch.*.merge to branch name (not a + full refname) incorrectly said that the upstream is gone. + (merge 05e7368 jc/checkout-local-track-report later to maint). + + * With The git-prompt support (in contrib/), using the exit status of + the last command in the prompt, e.g. PS1='$(__git_ps1) $? ', did + not work well, because the helper function stomped on the exit + status. + (merge 6babe76 tf/prompt-preserve-exit-status later to maint). + + * Recent update to "git commit" broke amending an existing commit + with bogus author/committer lines without a valid e-mail address. + (merge c83a509 jk/commit-date-approxidate later to maint). + + * The lockfile API used to get confused which file to clean up when + the process moved the $cwd after creating a lockfile. + (merge fa137f6 nd/lockfile-absolute later to maint). + + * Traditionally we tried to avoid interpreting date strings given by + the user as future dates, e.g. GIT_COMMITTER_DATE=2014-12-10 when + used early November 2014 was taken as "October 12, 2014" because it + is likely that a date in the future, December 10, is a mistake. + This heuristics has been loosened to allow people to express future + dates (most notably, --until=<date> may want to be far in the + future) and we no longer tiebreak by future-ness of the date when + + (1) ISO-like format is used, and + (2) the string can make sense interpreted as both y-m-d and y-d-m. + + Git may still have to use the heuristics to tiebreak between dd/mm/yy + and mm/dd/yy, though. + (merge d372395 jk/approxidate-avoid-y-d-m-over-future-dates later to maint). + + * Git did not correctly read an overlong refname from a packed refs + file. + (merge ea41783 jk/read-packed-refs-without-path-max later to maint). + + * "git apply" was described in the documentation to take --ignore-date + option, which it does not. + (merge 0cef4e7 rw/apply-does-not-take-ignore-date later to maint). + + * "git add -i" did not notice when the interactive command input + stream went away and kept asking the same question. + (merge a8bec7a jk/add-i-read-error later to maint). + + * "git send-email" did not handle RFC 2047 encoded headers quite + right. + (merge ab47e2a rd/send-email-2047-fix later to maint). + + * New tag object format validation added in 2.2 showed garbage after + a tagname it reported in its error message. + (merge a1e920a js/fsck-tag-validation later to maint). + + * The code that reads the reflog from the newer to the older entries + did not handle an entry that crosses a boundary of block it uses to + read them correctly. + (merge 69216bf jk/for-each-reflog-ent-reverse later to maint). + + * "git diff -B -M" after making a new copy B out of an existing file + A and then editing A extensively ought to report that B was created + by copying A and A was modified, which is what "git diff -C" + reports, but it instead said A was renamed to B and A was edited + heavily in place. This was not just incoherent but also failed to + apply with "git apply". The report has been corrected to match what + "git diff -C" produces for this case. + (merge 6936b58 jc/diff-b-m later to maint). + + * In files we pre-populate for the user to edit with commented hints, + a line of hint that is indented with a tab used to show as '#' (or + any comment char), ' ' (space), and then the hint text that began + with the tab, which some editors flag as an indentation error (tab + following space). We now omit the space after the comment char in + such a case. + (merge d55aeb7 jc/strbuf-add-lines-avoid-sp-ht-sequence later to maint). + + * "git ls-tree" does not support path selection based on negative + pathspecs, but did not error out when negative pathspecs are given. + (merge f1f6224 nd/ls-tree-pathspec later to maint). + + * The function sometimes returned a non-freeable memory and some + other times returned a piece of memory that must be freed, leading + to inevitable leaks. + (merge 59362e5 jc/exec-cmd-system-path-leak-fix later to maint). + + * The code to abbreviate an object name to its short unique prefix + has been optimized when no abbreviation was requested. + (merge 61e704e mh/find-uniq-abbrev later to maint). + + * "git add --ignore-errors ..." did not ignore an error to + give a file that did not exist. + (merge 1d31e5a mg/add-ignore-errors later to maint). + + * "git checkout $treeish $path", when $path in the index and the + working tree already matched what is in $treeish at the $path, + still overwrote the $path unnecessarily. + (merge c5326bd jk/checkout-from-tree later to maint). + + * "git config --get-color" did not parse its command line arguments + carefully. + (merge cb35722 jk/colors-fix later to maint). + + * open() emulated on Windows platforms did not give EISDIR upon + an attempt to open a directory for writing. + (merge ba6fad0 js/windows-open-eisdir-error later to maint). + + * A few code paths used abs() when they should have used labs() on + long integers. + (merge 83915ba rs/maint-config-use-labs later to maint). + (merge 31a8aa1 rs/receive-pack-use-labs later to maint). + + * "gitweb" used to depend on a behaviour recent CGI.pm deprecated. + (merge 13dbf46 jk/gitweb-with-newer-cgi-multi-param later to maint). + + * "git init" (hence "git clone") initialized the per-repository + configuration file .git/config with x-bit by mistake. + (merge 1f32ecf mh/config-flip-xbit-back-after-checking later to maint). + + * Recent update in Git 2.2 started creating objects/info/packs and + info/refs files with permission bits tighter than user's umask. + (merge d91175b jk/prune-packed-server-info later to maint). + + * Git 2.0 was supposed to make the "simple" mode for the default of + "git push", but it didn't. + (merge 00a6fa0 jk/push-simple later to maint). + + * "Everyday" document had a broken link. + (merge 366c8d4 po/everyday-doc later to maint). + + * A few test fixes. + (merge 880ef58 jk/no-perl-tests later to maint). + + * The build procedure did not bother fixing perl and python scripts + when NO_PERL and NO_PYTHON build-time configuration changed. + (merge ca2051d jk/rebuild-perl-scripts-with-no-perl-seting-change later to maint). + + * The usage string of "git log" command was marked incorrectly for + l10n. + (merge e66dc0c km/log-usage-string-i18n later to maint). + + * "git for-each-ref" mishandled --format="%(upstream:track)" when a + branch is marked to have forked from a non-existing branch. + (merge b6160d9 rc/for-each-ref-tracking later to maint). diff --git a/Documentation/RelNotes/2.3.1.txt b/Documentation/RelNotes/2.3.1.txt new file mode 100644 index 0000000000..cf96186288 --- /dev/null +++ b/Documentation/RelNotes/2.3.1.txt @@ -0,0 +1,52 @@ +Git v2.3.1 Release Notes +======================== + +Fixes since v2.3 +---------------- + + * The interactive "show a list and let the user choose from it" + interface "add -i" used showed and prompted to the user even when + the candidate list was empty, against which the only "choice" the + user could have made was to choose nothing. + + * "git apply --whitespace=fix" used to under-allocate the memory + when the fix resulted in a longer text than the original patch. + + * "git log --help" used to show rev-list options that are irrelevant + to the "log" command. + + * The error message from "git commit", when a non-existing author + name was given as value to the "--author=" parameter, has been + reworded to avoid misunderstanding. + + * A broken pack .idx file in the receiving repository prevented the + dumb http transport from fetching a good copy of it from the other + side. + + * The documentation incorrectly said that C(opy) and R(ename) are the + only ones that can be followed by the score number in the output in + the --raw format. + + * Fix a misspelled conditional that is always true. + + * Code to read branch name from various files in .git/ directory + would have misbehaved if the code to write them left an empty file. + + * The "git push" documentation made the "--repo=<there>" option + easily misunderstood. + + * After attempting and failing a password-less authentication + (e.g. kerberos), libcURL refuses to fall back to password based + Basic authentication without a bit of help/encouragement. + + * Setting diff.submodule to 'log' made "git format-patch" produce + broken patches. + + * "git rerere" (invoked internally from many mergy operations) did + not correctly signal errors when told to update the working tree + files and failed to do so for whatever reason. + + * "git blame HEAD -- missing" failed to correctly say "HEAD" when it + tried to say "No such path 'missing' in HEAD". + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.2.txt b/Documentation/RelNotes/2.3.2.txt new file mode 100644 index 0000000000..93462e45c2 --- /dev/null +++ b/Documentation/RelNotes/2.3.2.txt @@ -0,0 +1,79 @@ +Git v2.3.2 Release Notes +======================== + +Fixes since v2.3.1 +------------------ + + * "update-index --refresh" used to leak when an entry cannot be + refreshed for whatever reason. + + * "git fast-import" used to crash when it could not close and + conclude the resulting packfile cleanly. + + * "git blame" died, trying to free an uninitialized piece of memory. + + * "git merge-file" did not work correctly in a subdirectory. + + * "git submodule add" failed to squash "path/to/././submodule" to + "path/to/submodule". + + * In v2.2.0, we broke "git prune" that runs in a repository that + borrows from an alternate object store. + + * Certain older vintages of cURL give irregular output from + "curl-config --vernum", which confused our build system. + + * An earlier workaround to squelch unhelpful deprecation warnings + from the compiler on Mac OSX unnecessarily set minimum required + version of the OS, which the user might want to raise (or lower) + for other reasons. + + * Longstanding configuration variable naming rules has been added to + the documentation. + + * The credential helper for Windows (in contrib/) used to mishandle + a user name with an at-sign in it. + + * Older GnuPG implementations may not correctly import the keyring + material we prepare for the tests to use. + + * Clarify in the documentation that "remote.<nick>.pushURL" and + "remote.<nick>.URL" are there to name the same repository accessed + via different transports, not two separate repositories. + + * The pack bitmap support did not build with older versions of GCC. + + * Reading configuration from a blob object, when it ends with a lone + CR, use to confuse the configuration parser. + + * We didn't format an integer that wouldn't fit in "int" but in + "uintmax_t" correctly. + + * "git push --signed" gave an incorrectly worded error message when + the other side did not support the capability. + + * "git fetch" over a remote-helper that cannot respond to "list" + command could not fetch from a symbolic reference e.g. HEAD. + + * The insn sheet "git rebase -i" creates did not fully honor + core.abbrev settings. + + * The tests that wanted to see that file becomes unreadable after + running "chmod a-r file", and the tests that wanted to make sure it + is not run as root, we used "can we write into the / directory?" as + a cheap substitute, but on some platforms that is not a good + heuristics. The tests and their prerequisites have been updated to + check what they really require. + + * The configuration variable 'mailinfo.scissors' was hard to + discover in the documentation. + + * Correct a breakage to git-svn around v2.2 era that triggers + premature closing of FileHandle. + + * Even though we officially haven't dropped Perl 5.8 support, the + Getopt::Long package that came with it does not support "--no-" + prefix to negate a boolean option; manually add support to help + people with older Getopt::Long package. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.3.txt b/Documentation/RelNotes/2.3.3.txt new file mode 100644 index 0000000000..5ef12644c2 --- /dev/null +++ b/Documentation/RelNotes/2.3.3.txt @@ -0,0 +1,39 @@ +Git v2.3.3 Release Notes +======================== + +Fixes since v2.3.2 +------------------ + + * A corrupt input to "git diff -M" used cause us to segfault. + + * The borrowed code in kwset API did not follow our usual convention + to use "unsigned char" to store values that range from 0-255. + + * Description given by "grep -h" for its --exclude-standard option + was phrased poorly. + + * Documentaton for "git remote add" mentioned "--tags" and + "--no-tags" and it was not clear that fetch from the remote in + the future will use the default behaviour when neither is given + to override it. + + * "git diff --shortstat --dirstat=changes" showed a dirstat based on + lines that was never asked by the end user in addition to the + dirstat that the user asked for. + + * The interaction between "git submodule update" and the + submodule.*.update configuration was not clearly documented. + + * "git apply" was not very careful about reading from, removing, + updating and creating paths outside the working tree (under + --index/--cached) or the current directory (when used as a + replacement for GNU patch). + + * "git daemon" looked up the hostname even when "%CH" and "%IP" + interpolations are not requested, which was unnecessary. + + * The "interpolated-path" option of "git daemon" inserted any string + client declared on the "host=" capability request without checking. + Sanitize and limit %H and %CH to a saner and a valid DNS name. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.4.txt b/Documentation/RelNotes/2.3.4.txt new file mode 100644 index 0000000000..094c7b853b --- /dev/null +++ b/Documentation/RelNotes/2.3.4.txt @@ -0,0 +1,32 @@ +Git v2.3.4 Release Notes +======================== + +Fixes since v2.3.3 +------------------ + + * The 'color.status.unmerged' configuration was not described. + + * "git log --decorate" did not reset colors correctly around the + branch names. + + * "git -C '' subcmd" refused to work in the current directory, unlike + "cd ''" which silently behaves as a no-op. + + * "git imap-send" learned to optionally talk with an IMAP server via + libcURL; because there is no other option when Git is built with + NO_OPENSSL option, use that codepath by default under such + configuration. + + * A workaround for certain build of GPG that triggered false breakage + in a test has been added. + + * "git rebase -i" recently started to include the number of + commits in the insn sheet to be processed, but on a platform + that prepends leading whitespaces to "wc -l" output, the numbers + are shown with extra whitespaces that aren't necessary. + + * We did not parse username followed by literal IPv6 address in SSH + transport URLs, e.g. ssh://user@[2001:db8::1]:22/repo.git + correctly. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.5.txt b/Documentation/RelNotes/2.3.5.txt new file mode 100644 index 0000000000..5b309db689 --- /dev/null +++ b/Documentation/RelNotes/2.3.5.txt @@ -0,0 +1,44 @@ +Git v2.3.5 Release Notes +======================== + +Fixes since v2.3.4 +------------------ + + * The prompt script (in contrib/) did not show the untracked sign + when working in a subdirectory without any untracked files. + + * Even though "git grep --quiet" is run merely to ask for the exit + status, we spawned the pager regardless. Stop doing that. + + * Recommend format-patch and send-email for those who want to submit + patches to this project. + + * An failure early in the "git clone" that started creating the + working tree and repository could have resulted in some directories + and files left without getting cleaned up. + + * "git fetch" that fetches a commit using the allow-tip-sha1-in-want + extension could have failed to fetch all the requested refs. + + * The split-index mode introduced at v2.3.0-rc0~41 was broken in the + codepath to protect us against a broken reimplementation of Git + that writes an invalid index with duplicated index entries, etc. + + * "git prune" used to largely ignore broken refs when deciding which + objects are still being used, which could spread an existing small + damage and make it a larger one. + + * "git tag -h" used to show the "--column" and "--sort" options + that are about listing in a wrong section. + + * The transfer.hiderefs support did not quite work for smart-http + transport. + + * The code that reads from the ctags file in the completion script + (in contrib/) did not spell ${param/pattern/string} substitution + correctly, which happened to work with bash but not with zsh. + + * The explanation on "rebase --preserve-merges", "pull --rebase=preserve", + and "push --force-with-lease" in the documentation was unclear. + +Also contains typofixes, documentation updates and trivial code clean-ups. diff --git a/Documentation/RelNotes/2.3.6.txt b/Documentation/RelNotes/2.3.6.txt new file mode 100644 index 0000000000..432f770ef3 --- /dev/null +++ b/Documentation/RelNotes/2.3.6.txt @@ -0,0 +1,13 @@ +Git v2.3.6 Release Notes +======================== + +Fixes since v2.3.5 +------------------ + + * "diff-highlight" (in contrib/) used to show byte-by-byte + differences, which meant that multi-byte characters can be chopped + in the middle. It learned to pay attention to character boundaries + (assuming the UTF-8 payload). + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.3.7.txt b/Documentation/RelNotes/2.3.7.txt new file mode 100644 index 0000000000..fc95812cb3 --- /dev/null +++ b/Documentation/RelNotes/2.3.7.txt @@ -0,0 +1,21 @@ +Git v2.3.7 Release Notes +======================== + +Fixes since v2.3.6 +------------------ + + * An earlier update to the parser that disects a URL broke an + address, followed by a colon, followed by an empty string (instead + of the port number), e.g. ssh://example.com:/path/to/repo. + + * The completion script (in contrib/) contaminated global namespace + and clobbered on a shell variable $x. + + * The "git push --signed" protocol extension did not limit what the + "nonce" that is a server-chosen string can contain or how long it + can be, which was unnecessarily lax. Limit both the length and the + alphabet to a reasonably small space that can still have enough + entropy. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.3.8.txt b/Documentation/RelNotes/2.3.8.txt new file mode 100644 index 0000000000..0b67268a96 --- /dev/null +++ b/Documentation/RelNotes/2.3.8.txt @@ -0,0 +1,22 @@ +Git v2.3.8 Release Notes +======================== + +Fixes since v2.3.7 +------------------ + + * The usual "git diff" when seeing a file turning into a directory + showed a patchset to remove the file and create all files in the + directory, but "git diff --no-index" simply refused to work. Also, + when asked to compare a file and a directory, imitate POSIX "diff" + and compare the file with the file with the same name in the + directory, instead of refusing to run. + + * The default $HOME/.gitconfig file created upon "git config --global" + that edits it had incorrectly spelled user.name and user.email + entries in it. + + * "git commit --date=now" or anything that relies on approxidate lost + the daylight-saving-time offset. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.0.txt b/Documentation/RelNotes/2.4.0.txt new file mode 100644 index 0000000000..cde64be535 --- /dev/null +++ b/Documentation/RelNotes/2.4.0.txt @@ -0,0 +1,514 @@ +Git 2.4 Release Notes +===================== + +Backward compatibility warning(s) +--------------------------------- + +This release has a few changes in the user-visible output from +Porcelain commands. These are not meant to be parsed by scripts, but +users still may want to be aware of the changes: + + * The output from "git log --decorate" (and, more generally, the "%d" + format specifier used in the "--format=<string>" parameter to the + "git log" family of commands) has changed. It used to list "HEAD" + just like other branches; e.g., + + $ git log --decorate -1 master + commit bdb0f6788fa5e3cacc4315e9ff318a27b2676ff4 (HEAD, master) + ... + + This release changes the output slightly when HEAD refers to a + branch whose name is also shown in the output. The above is now + shown as: + + $ git log --decorate -1 master + commit bdb0f6788fa5e3cacc4315e9ff318a27b2676ff4 (HEAD -> master) + ... + + * The phrasing "git branch" uses to describe a detached HEAD has been + updated to agree with the phrasing used by "git status": + + - When HEAD is at the same commit as when it was originally + detached, they now both show "detached at <commit object name>". + + - When HEAD has moved since it was originally detached, they now + both show "detached from <commit object name>". + + Previously, "git branch" always used "from". + + +Updates since v2.3 +------------------ + +Ports + + * Our default I/O size (8 MiB) for large files was too large for some + platforms with smaller SSIZE_MAX, leading to read(2)/write(2) + failures. + + * We did not check the curl library version before using the + CURLOPT_PROXYAUTH feature, which did not exist in older versions of + the library. + + * We now detect number of CPUs on older BSD-derived systems. + + * Portability fixes and workarounds for shell scripts have been added + to help BSD-derived systems. + + +UI, Workflows & Features + + * The command usage info strings given by "git cmd -h" and in + documentation have been tweaked for consistency. + + * The "sync" subcommand of "git p4" now allows users to exclude + subdirectories like its "clone" subcommand does. + + * "git log --invert-grep --grep=WIP" will show only commits that do + not have the string "WIP" in their messages. + + * "git push" has been taught an "--atomic" option that makes a push + that updates more than one ref an "all-or-none" affair. + + * Extending the "push to deploy" feature that was added in 2.3, the + behaviour of "git push" when updating the branch that is checked + out can now be tweaked by a "push-to-checkout" hook. + + * HTTP-based transports now send Accept-Language when making + requests. The languages to accept are inferred from environment + variables on the client side (LANGUAGE, etc). + + * "git send-email" used to accept a mistaken "y" (or "yes") as an + answer to "What encoding do you want to use [UTF-8]?" without + questioning. Now it asks for confirmation when the answer looks too + short to be a valid encoding name. + + * When "git apply --whitespace=fix" fixed whitespace errors in the + common context lines, the command reports that it did so. + + * "git status" now allows the "-v" option to be given twice, in which + case it also shows the differences in the working tree that are not + staged to be committed. + + * "git cherry-pick" used to clean up the log message even when it is + merely replaying an existing commit. It now replays the message + verbatim unless you are editing the message of the resulting + commit. + + * "git archive" can now be told to set the 'text' attribute in the + resulting zip archive. + + * Output from "git log --decorate" now distinguishes between a + detached HEAD vs. a HEAD that points at a branch. + + This is a potentially backward-incompatible change; see above for + more information. + + * When HEAD was detached when at commit xyz and hasn't been moved + since it was detached, "git status" would report "detached at xyz" + whereas "git branch" would report "detached from xyz". Now the + output of "git branch" agrees with that of "git status". + + This is a potentially backward-incompatible change; see above for + more information. + + * "git -C '' subcmd" now works in the current directory (analogously + to "cd ''") rather than dying with an error message. + (merge 6a536e2 kn/git-cd-to-empty later to maint). + + * The versionsort.prereleaseSuffix configuration variable can be used + to specify that, for example, v1.0-pre1 comes before v1.0. + + * A new "push.followTags" configuration turns the "--follow-tags" + option on by default for the "git push" command. + + * "git log --graph --no-walk A B..." is a nonsensical combination of + options: "--no-walk" requests discrete points in the history, while + "--graph" asks to draw connections between these discrete points. + Forbid the use of these options together. + + * "git rev-list --bisect --first-parent" does not work (yet) and can + even cause SEGV; forbid it. "git log --bisect --first-parent" would + not be useful until "git bisect --first-parent" materializes, so + also forbid it for now. + + +Performance, Internal Implementation, Development Support etc. + + * Slightly change the implementation of the N_() macro to help us + detect mistakes. + + * Restructure the implementation of "reflog expire" to fit better + with the recently updated reference API. + + * The transport-helper did not pass transport options such as + verbosity, progress, cloning, etc. to import and export based + helpers, like it did for fetch and push based helpers, robbing them + of the chance to honor the wish of the end-users better. + + * The tests that wanted to see that a file becomes unreadable after + running "chmod a-r file", and the tests that wanted to make sure + that they are not run as root, used "can we write into the / + directory?" as a cheap substitute. But on some platforms that is + not a good heuristic. The tests and their prerequisites have been + updated to check what they really require. + (merge f400e51 jk/sanity later to maint). + + * Various issues around "reflog expire", e.g. using --updateref when + expiring a reflog for a symbolic reference, have been corrected + and/or made saner. + + * The documentation for the strbuf API had been split between the API + documentation and the header file. Consolidate the documentation in + strbuf.h. + + * The error handling functions and conventions are now documented in + the API manual (in api-error-handling.txt). + + * Optimize gitattribute look-up, mostly useful in "git grep" on a + project that does not use many attributes, by avoiding it when we + (should) know that the attributes are not defined in the first + place. + + * Typofix in comments. + (merge ef2956a ak/git-pm-typofix later to maint). + + * Code clean-up. + (merge 0b868f0 sb/hex-object-name-is-at-most-41-bytes-long later to maint). + (merge 5d30851 dp/remove-duplicated-header-inclusion later to maint). + + * Simplify the ref transaction API for verifying that "the ref should + be pointing at this object". + + * Simplify the code in "git daemon" that parses out and holds + hostnames used in request interpolation. + + * Restructure the "git push" codepath to make it easier to add new + configuration bits. + + * The run-command interface made it easy to make a pipe for us to + read from a process, wait for the process to finish, and then + attempt to read its output. But this pattern can lead to deadlock. + So introduce a helper to do this correctly (i.e., first read, and + then wait the process to finish) and also add code to prevent such + abuse in the run-command helper. + + * People often forget to chain the commands in their test together + with &&, letting a failure from an earlier command in the test go + unnoticed. The new GIT_TEST_CHAIN_LINT mechanism allows you to + catch such a mistake more easily. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.3 +---------------- + +Unless otherwise noted, all the fixes since v2.3 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git blame HEAD -- missing" failed to correctly say "HEAD" when it + tried to say "No such path 'missing' in HEAD". + (merge a46442f jk/blame-commit-label later to maint). + + * "git rerere" (invoked internally from many mergy operations) did + not correctly signal errors when it attempted to update the working + tree files but failed for whatever reason. + (merge 89ea903 jn/rerere-fail-on-auto-update-failure later to maint). + + * Setting diff.submodule to 'log' made "git format-patch" produce + broken patches. + (merge 339de50 dk/format-patch-ignore-diff-submodule later to maint). + + * After attempting and failing a password-less authentication (e.g., + Kerberos), libcURL refuses to fall back to password-based Basic + authentication without a bit of help/encouragement. + (merge 4dbe664 bc/http-fallback-to-password-after-krb-fails later to maint). + + * The "git push" documentation for the "--repo=<there>" option was + easily misunderstood. + (merge 57b92a7 mg/push-repo-option-doc later to maint). + + * Code to read a branch name from various files in the .git/ + directory would have overrun array limits if asked to read an empty + file. + (merge 66ec904 jk/status-read-branch-name-fix later to maint). + + * Remove a superfluous conditional that is always true. + (merge 94ee8e2 jk/remote-curl-an-array-in-struct-cannot-be-null later to maint). + + * The "git diff --raw" documentation incorrectly implied that C(opy) + and R(ename) are the only statuses that can be followed by a score + number. + (merge ac1c2d9 jc/diff-format-doc later to maint). + + * A broken pack .idx file in the receiving repository prevented the + dumb http transport from fetching a good copy of it from the other + side. + (merge 8b9c2dd jk/dumb-http-idx-fetch-fix later to maint). + + * The error message from "git commit", when a non-existing author + name was given as value to the "--author=" parameter, has been + reworded to avoid misunderstanding. + (merge 1044b1f mg/commit-author-no-match-malformed-message later to maint). + + * "git log --help" used to show rev-list options that are irrelevant + to the "log" command. + (merge 3cab02d jc/doc-log-rev-list-options later to maint). + + * "git apply --whitespace=fix" used to under-allocate memory when the + fix resulted in a longer text than the original patch. + (merge 407a792 jc/apply-ws-fix-expands later to maint). + + * The interactive "show a list and let the user choose from it" + interface used by "git add -i" unnecessarily prompted the user even + when the candidate list was empty, against which the only "choice" + the user could have made was to choose nothing. + (merge a9c4641 ak/add-i-empty-candidates later to maint). + + * The todo list created by "git rebase -i" did not fully honor + core.abbrev settings. + (merge edb72d5 ks/rebase-i-abbrev later to maint). + + * "git fetch" over a remote-helper that cannot respond to the "list" + command could not fetch from a symbolic reference (e.g., HEAD). + (merge 33cae54 mh/deref-symref-over-helper-transport later to maint). + + * "git push --signed" gave an incorrectly worded error message when + the other side did not support the capability. + + * The "git push --signed" protocol extension did not limit what the + "nonce" (a server-chosen string) could contain nor how long it + could be, which was unnecessarily lax. Limit both the length and + the alphabet to a reasonably small space that can still have enough + entropy. + (merge afcb6ee jc/push-cert later to maint). + + * The completion script (in contrib/) clobbered the shell variable $x + in the global shell namespace. + (merge 852ff1c ma/bash-completion-leaking-x later to maint). + + * We incorrectly formatted a "uintmax_t" integer that doesn't fit in + "int". + (merge d306f3d jk/decimal-width-for-uintmax later to maint). + + * The configuration parser used to be confused when reading + configuration from a blob object that ends with a lone CR. + (merge 1d0655c jk/config-no-ungetc-eof later to maint). + + * The pack bitmap support did not build with older versions of GCC. + (merge bd4e882 jk/pack-bitmap later to maint). + + * The documentation wasn't clear that "remote.<nick>.pushURL" and + "remote.<nick>.URL" are there to name the same repository accessed + via different transports, not two separate repositories. + (merge 697f652 jc/remote-set-url-doc later to maint). + + * Older GnuPG implementations may not correctly import the keyring + material we prepare for the tests to use. + (merge 1f985d6 ch/new-gpg-drops-rfc-1991 later to maint). + + * The credential helper for Windows (in contrib/) used to mishandle + user names that contain an at-sign. + (merge 13d261e av/wincred-with-at-in-username-fix later to maint). + + * "diff-highlight" (in contrib/) used to show byte-by-byte + differences, which could cause multi-byte characters to be chopped + in the middle. It learned to pay attention to character boundaries + (assuming UTF-8). + (merge 8d00662 jk/colors later to maint). + + * Document longstanding configuration variable naming rules in + CodingGuidelines. + (merge 35840a3 jc/conf-var-doc later to maint). + + * An earlier workaround to squelch unhelpful deprecation warnings + from the compiler on OS X unnecessarily set a minimum required + version of the OS, which the user might want to raise (or lower) + for other reasons. + (merge 88c03eb es/squelch-openssl-warnings-on-macosx later to maint). + + * Certain older vintages of cURL give irregular output from + "curl-config --vernum", which confused our build system. + (merge 3af6792 tc/curl-vernum-output-broken-in-7.11 later to maint). + + * In v2.2.0, we broke "git prune" that runs in a repository that + borrows from an alternate object store. + (merge b0a4264 jk/prune-mtime later to maint). + + * "git submodule add" failed to squash "path/to/././submodule" to + "path/to/submodule". + (merge 8196e72 ps/submodule-sanitize-path-upon-add later to maint). + + * "git merge-file" did not work correctly when invoked in a + subdirectory. + (merge 204a8ff ab/merge-file-prefix later to maint). + + * "git blame" could die trying to free an uninitialized piece of + memory. + (merge e600592 es/blame-commit-info-fix later to maint). + + * "git fast-import" used to crash when it could not close and + finalize the resulting packfile cleanly. + (merge 5e915f3 jk/fast-import-die-nicely-fix later to maint). + + * "update-index --refresh" used to leak memory when an entry could + not be refreshed for whatever reason. + (merge bc1c2ca sb/plug-leak-in-make-cache-entry later to maint). + + * The "interpolated-path" option of "git daemon" inserted any string + the client declared on the "host=" capability request without + checking. Sanitize and limit %H and %CH to a saner and a valid DNS + name. + (merge b485373 jk/daemon-interpolate later to maint). + + * "git daemon" unnecessarily looked up the hostname even when "%CH" + and "%IP" interpolations were not requested. + (merge dc8edc8 rs/daemon-interpolate later to maint). + + * We relied on "--no-" prefix handling in Perl's Getopt::Long + package, even though that support didn't exist in Perl 5.8 (which + we still support). Manually add support to help people with older + Getopt::Long packages. + (merge f471494 km/send-email-getopt-long-workarounds later to maint). + + * "git apply" was not very careful about reading from, removing, + updating and creating paths outside the working tree (under + --index/--cached) or the current directory (when used as a + replacement for GNU patch). + (merge e0d201b jc/apply-beyond-symlink later to maint). + + * Correct a breakage in git-svn, introduced around the v2.2 era, that + can cause FileHandles to be closed prematurely. + (merge e426311 ew/svn-maint-fixes later to maint). + + * We did not parse usernames followed by literal IPv6 addresses + correctly in SSH transport URLs; e.g., + ssh://user@[2001:db8::1]:22/repo.git. + (merge 6b6c5f7 tb/connect-ipv6-parse-fix later to maint). + + * The configuration variable 'mailinfo.scissors' was hard to + discover in the documentation. + (merge afb5de7 mm/am-c-doc later to maint). + + * The interaction between "git submodule update" and the + submodule.*.update configuration was not clearly documented. + (merge 5c31acf ms/submodule-update-config-doc later to maint). + + * "git diff --shortstat" used together with "--dirstat=changes" or + "--dirstat=files" incorrectly output dirstat information twice. + (merge ab27389 mk/diff-shortstat-dirstat-fix later to maint). + + * The manpage for "git remote add" mentioned "--tags" and "--no-tags" + but did not explain what happens if neither option is provided. + (merge aaba0ab mg/doc-remote-tags-or-not later to maint). + + * The description of "--exclude-standard option" in the output of + "git grep -h" was phrased poorly. + (merge 77fdb8a nd/grep-exclude-standard-help-fix later to maint). + + * "git rebase -i" recently started to include the number of commits + in the todo list, but that output included extraneous whitespace on + a platform that prepends leading whitespaces to its "wc -l" output. + (merge 2185d3b es/rebase-i-count-todo later to maint). + + * The borrowed code in the kwset API did not follow our usual + convention to use "unsigned char" to store values that range from + 0-255. + (merge 189c860 bw/kwset-use-unsigned later to maint). + + * A corrupt input to "git diff -M" used to cause it to segfault. + (merge 4d6be03 jk/diffcore-rename-duplicate later to maint). + + * Certain builds of GPG triggered false breakages in a test. + (merge 3f88c1b mg/verify-commit later to maint). + + * "git imap-send" learned to optionally talk with an IMAP server via + libcURL. Because there is no other option when Git is built with + the NO_OPENSSL option, use libcURL by default in that case. + (merge dcd01ea km/imap-send-libcurl-options later to maint). + + * "git log --decorate" did not reset colors correctly around the + branch names. + (merge 5ee8758 jc/decorate-leaky-separator-color later to maint). + + * The code that reads from the ctags file in the completion script + (in contrib/) did not spell ${param/pattern/string} substitution + correctly, which happened to work with bash but not with zsh. + (merge db8d750 js/completion-ctags-pattern-substitution-fix later to maint). + + * The transfer.hiderefs support did not quite work for smart-http + transport. + (merge 8ddf3ca jk/smart-http-hide-refs later to maint). + + * In the "git tag -h" output, move the documentation for the + "--column" and "--sort" options to the "Tag listing options" + section. + (merge dd059c6 jk/tag-h-column-is-a-listing-option later to maint). + + * "git prune" used to largely ignore broken refs when deciding which + objects are still being used, which could cause reference + corruption to lead to object loss. + (merge ea56c4e jk/prune-with-corrupt-refs later to maint). + + * The split-index mode introduced in v2.3.0-rc0~41 was broken in the + codepath to protect us against a broken reimplementation of Git + that writes an invalid index with duplicated index entries, etc. + (merge 03f15a7 tg/fix-check-order-with-split-index later to maint). + + * "git fetch", when fetching a commit using the + allow-tip-sha1-in-want extension, could have failed to fetch all of + the requested refs. + (merge 32d0462 jk/fetch-pack later to maint). + + * An failure early in the "git clone" that started creating the + working tree and repository could have resulted in the failure to + clean up some directories and files. + (merge 16eff6c jk/cleanup-failed-clone later to maint). + + * Recommend format-patch and send-email for those who want to submit + patches to this project. + (merge b25c469 jc/submitting-patches-mention-send-email later to maint). + + * Do not spawn the pager when "git grep" is run with "--quiet". + (merge c2048f0 ws/grep-quiet-no-pager later to maint). + + * The prompt script (in contrib/) did not show the untracked sign + when working in a subdirectory without any untracked files. + (merge 9bdc517 ct/prompt-untracked-fix later to maint). + + * An earlier update to the URL parser broke an address that contains + a colon but an empty string for the port number, like + ssh://example.com:/path/to/repo. + (merge 6b6c5f7 tb/connect-ipv6-parse-fix later to maint). + + * Code cleanups and documentation updates. + (merge 2ce63e9 rs/simple-cleanups later to maint). + (merge 33baa69 rj/no-xopen-source-for-cygwin later to maint). + (merge 817d03e jc/diff-test-updates later to maint). + (merge eb32c66 ak/t5516-typofix later to maint). + (merge bcd57cb mr/doc-clean-f-f later to maint). + (merge 0d6accc mg/doc-status-color-slot later to maint). + (merge 53e53c7 sg/completion-remote later to maint). + (merge 8fa7975 ak/git-done-help-cleanup later to maint). + (merge 9a6f128 rs/deflate-init-cleanup later to maint). + (merge 6f75d45 rs/use-isxdigit later to maint). + (merge 376e4b3 jk/test-annoyances later to maint). + (merge 7032054 nd/doc-git-index-version later to maint). + (merge e869c5e tg/test-index-v4 later to maint). + (merge 599d223 jk/simplify-csum-file-sha1fd-check later to maint). + (merge 260d585 sg/completion-gitcomp-nl-for-refs later to maint). + (merge 777c55a jc/report-path-error-to-dir later to maint). + (merge fddfaf8 ph/push-doc-cas later to maint). + (merge d50d31e ss/pull-rebase-preserve later to maint). + (merge c8c3f1d pt/enter-repo-comment-fix later to maint). + (merge d7bfb9e jz/gitweb-conf-doc-fix later to maint). + (merge f907282 jk/cherry-pick-docfix later to maint). + (merge d3c0811 iu/fix-parse-options-h-comment later to maint). + (merge 6c3b2af jg/cguide-we-cannot-count later to maint). + (merge 2b8bd44 jk/pack-corruption-post-mortem later to maint). + (merge 9585cb8 jn/doc-fast-import-no-16-octopus-limit later to maint). + (merge 5dcd1b1 ps/grep-help-all-callback-arg later to maint). + (merge f1f4c84 va/fix-git-p4-tests later to maint). diff --git a/Documentation/RelNotes/2.4.1.txt b/Documentation/RelNotes/2.4.1.txt new file mode 100644 index 0000000000..a65a6c5829 --- /dev/null +++ b/Documentation/RelNotes/2.4.1.txt @@ -0,0 +1,40 @@ +Git v2.4.1 Release Notes +======================== + +Fixes since v2.4 +---------------- + + * The usual "git diff" when seeing a file turning into a directory + showed a patchset to remove the file and create all files in the + directory, but "git diff --no-index" simply refused to work. Also, + when asked to compare a file and a directory, imitate POSIX "diff" + and compare the file with the file with the same name in the + directory, instead of refusing to run. + + * The default $HOME/.gitconfig file created upon "git config --global" + that edits it had incorrectly spelled user.name and user.email + entries in it. + + * "git commit --date=now" or anything that relies on approxidate lost + the daylight-saving-time offset. + + * "git cat-file bl $blob" failed to barf even though there is no + object type that is "bl". + + * Teach the codepaths that read .gitignore and .gitattributes files + that these files encoded in UTF-8 may have UTF-8 BOM marker at the + beginning; this makes it in line with what we do for configuration + files already. + + * Access to objects in repositories that borrow from another one on a + slow NFS server unnecessarily got more expensive due to recent code + becoming more cautious in a naive way not to lose objects to pruning. + + * We avoid setting core.worktree when the repository location is the + ".git" directory directly at the top level of the working tree, but + the code misdetected the case in which the working tree is at the + root level of the filesystem (which arguably is a silly thing to + do, but still valid). + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.2.txt b/Documentation/RelNotes/2.4.2.txt new file mode 100644 index 0000000000..250cdc423c --- /dev/null +++ b/Documentation/RelNotes/2.4.2.txt @@ -0,0 +1,45 @@ +Git v2.4.2 Release Notes +======================== + +Fixes since v2.4.1 +------------------ + + * "git rev-list --objects $old --not --all" to see if everything that + is reachable from $old is already connected to the existing refs + was very inefficient. + + * "hash-object --literally" introduced in v2.2 was not prepared to + take a really long object type name. + + * "git rebase --quiet" was not quite quiet when there is nothing to + do. + + * The completion for "log --decorate=" parameter value was incorrect. + + * "filter-branch" corrupted commit log message that ends with an + incomplete line on platforms with some "sed" implementations that + munge such a line. Work it around by avoiding to use "sed". + + * "git daemon" fails to build from the source under NO_IPV6 + configuration (regression in 2.4). + + * "git stash pop/apply" forgot to make sure that not just the working + tree is clean but also the index is clean. The latter is important + as a stash application can conflict and the index will be used for + conflict resolution. + + * We have prepended $GIT_EXEC_PATH and the path "git" is installed in + (typically "/usr/bin") to $PATH when invoking subprograms and hooks + for almost eternity, but the original use case the latter tried to + support was semi-bogus (i.e. install git to /opt/foo/git and run it + without having /opt/foo on $PATH), and more importantly it has + become less and less relevant as Git grew more mainstream (i.e. the + users would _want_ to have it on their $PATH). Stop prepending the + path in which "git" is installed to users' $PATH, as that would + interfere the command search order people depend on (e.g. they may + not like versions of programs that are unrelated to Git in /usr/bin + and want to override them by having different ones in /usr/local/bin + and have the latter directory earlier in their $PATH). + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.3.txt b/Documentation/RelNotes/2.4.3.txt new file mode 100644 index 0000000000..914d2c1860 --- /dev/null +++ b/Documentation/RelNotes/2.4.3.txt @@ -0,0 +1,76 @@ +Git v2.4.3 Release Notes +======================== + +Fixes since v2.4.3 +------------------ + + * Error messages from "git branch" called remote-tracking branches as + "remote branches". + + * "git rerere forget" in a repository without rerere enabled gave a + cryptic error message; it should be a silent no-op instead. + + * "git pull --log" and "git pull --no-log" worked as expected, but + "git pull --log=20" did not. + + * The pull.ff configuration was supposed to override the merge.ff + configuration, but it didn't. + + * The code to read pack-bitmap wanted to allocate a few hundred + pointers to a structure, but by mistake allocated and leaked memory + enough to hold that many actual structures. Correct the allocation + size and also have it on stack, as it is small enough. + + * Various documentation mark-up fixes to make the output more + consistent in general and also make AsciiDoctor (an alternative + formatter) happier. + + * "git bundle verify" did not diagnose extra parameters on the + command line. + + * Multi-ref transaction support we merged a few releases ago + unnecessarily kept many file descriptors open, risking to fail with + resource exhaustion. + + * The ref API did not handle cases where 'refs/heads/xyzzy/frotz' is + removed at the same time as 'refs/heads/xyzzy' is added (or vice + versa) very well. + + * The "log --decorate" enhancement in Git 2.4 that shows the commit + at the tip of the current branch e.g. "HEAD -> master", did not + work with --decorate=full. + + * There was a commented-out (instead of being marked to expect + failure) test that documented a breakage that was fixed since the + test was written; turn it into a proper test. + + * core.excludesfile (defaulting to $XDG_HOME/git/ignore) is supposed + to be overridden by repository-specific .git/info/exclude file, but + the order was swapped from the beginning. This belatedly fixes it. + + * The connection initiation code for "ssh" transport tried to absorb + differences between the stock "ssh" and Putty-supplied "plink" and + its derivatives, but the logic to tell that we are using "plink" + variants were too loose and falsely triggered when "plink" appeared + anywhere in the path (e.g. "/home/me/bin/uplink/ssh"). + + * "git rebase -i" moved the "current" command from "todo" to "done" a + bit too prematurely, losing a step when a "pick" did not even start. + + * "git add -e" did not allow the user to abort the operation by + killing the editor. + + * Git 2.4 broke setting verbosity and progress levels on "git clone" + with native transports. + + * Some time ago, "git blame" (incorrectly) lost the convert_to_git() + call when synthesizing a fake "tip" commit that represents the + state in the working tree, which broke folks who record the history + with LF line ending to make their project portabile across + platforms while terminating lines in their working tree files with + CRLF for their platform. + + * Code clean-up for xdg configuration path support. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.4.txt b/Documentation/RelNotes/2.4.4.txt new file mode 100644 index 0000000000..f1ccd001be --- /dev/null +++ b/Documentation/RelNotes/2.4.4.txt @@ -0,0 +1,35 @@ +Git v2.4.4 Release Notes +======================== + +Fixes since v2.4.3 +------------------ + + * l10n updates for German. + + * An earlier leakfix to bitmap testing code was incomplete. + + * "git clean pathspec..." tried to lstat(2) and complain even for + paths outside the given pathspec. + + * Communication between the HTTP server and http_backend process can + lead to a dead-lock when relaying a large ref negotiation request. + Diagnose the situation better, and mitigate it by reading such a + request first into core (to a reasonable limit). + + * The clean/smudge interface did not work well when filtering an + empty contents (failed and then passed the empty input through). + It can be argued that a filter that produces anything but empty for + an empty input is nonsense, but if the user wants to do strange + things, then why not? + + * Make "git stash something --help" error out, so that users can + safely say "git stash drop --help". + + * Clarify that "log --raw" and "log --format=raw" are unrelated + concepts. + + * Catch a programmer mistake to feed a pointer not an array to + ARRAY_SIZE() macro, by using a couple of GCC extensions. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.5.txt b/Documentation/RelNotes/2.4.5.txt new file mode 100644 index 0000000000..568297ccb7 --- /dev/null +++ b/Documentation/RelNotes/2.4.5.txt @@ -0,0 +1,28 @@ +Git v2.4.5 Release Notes +======================== + +Fixes since v2.4.4 +------------------ + + * The setup code used to die when core.bare and core.worktree are set + inconsistently, even for commands that do not need working tree. + + * There was a dead code that used to handle "git pull --tags" and + show special-cased error message, which was made irrelevant when + the semantics of the option changed back in Git 1.9 days. + + * "color.diff.plain" was a misnomer; give it 'color.diff.context' as + a more logical synonym. + + * The configuration reader/writer uses mmap(2) interface to access + the files; when we find a directory, it barfed with "Out of memory?". + + * Recent "git prune" traverses young unreachable objects to safekeep + old objects in the reachability chain from them, which sometimes + showed unnecessary error messages that are alarming. + + * "git rebase -i" fired post-rewrite hook when it shouldn't (namely, + when it was told to stop sequencing with 'exec' insn). + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.6.txt b/Documentation/RelNotes/2.4.6.txt new file mode 100644 index 0000000000..b53f353939 --- /dev/null +++ b/Documentation/RelNotes/2.4.6.txt @@ -0,0 +1,23 @@ +Git v2.4.6 Release Notes +======================== + +Fixes since v2.4.5 +------------------ + + * "git fetch --depth=<depth>" and "git clone --depth=<depth>" issued + a shallow transfer request even to an upload-pack that does not + support the capability. + + * "git fsck" used to ignore missing or invalid objects recorded in reflog. + + * The tcsh completion writes a bash scriptlet but that would have + failed for users with noclobber set. + + * Recent Mac OS X updates breaks the logic to detect that the machine + is on the AC power in the sample pre-auto-gc script. + + * "git format-patch --ignore-if-upstream A..B" did not like to be fed + tags as boundary commits. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.7.txt b/Documentation/RelNotes/2.4.7.txt new file mode 100644 index 0000000000..b3ac412b82 --- /dev/null +++ b/Documentation/RelNotes/2.4.7.txt @@ -0,0 +1,53 @@ +Git v2.4.7 Release Notes +======================== + +Fixes since v2.4.6 +------------------ + + * A minor regression to "git fsck" in v2.2 era was fixed; it + complained about a body-less tag object when it lacked a + separator empty line after its header to separate it with a + non-existent body. + + * We used to ask libCURL to use the most secure authentication method + available when talking to an HTTP proxy only when we were told to + talk to one via configuration variables. We now ask libCURL to + always use the most secure authentication method, because the user + can tell libCURL to use an HTTP proxy via an environment variable + without using configuration variables. + + * When you say "!<ENTER>" while running say "git log", you'd confuse + yourself in the resulting shell, that may look as if you took + control back to the original shell you spawned "git log" from but + that isn't what is happening. To that new shell, we leaked + GIT_PAGER_IN_USE environment variable that was meant as a local + communication between the original "Git" and subprocesses that was + spawned by it after we launched the pager, which caused many + "interesting" things to happen, e.g. "git diff | cat" still paints + its output in color by default. + + Stop leaking that environment variable to the pager's half of the + fork; we only need it on "Git" side when we spawn the pager. + + * Avoid possible ssize_t to int truncation. + + * "git config" failed to update the configuration file when the + underlying filesystem is incapable of renaming a file that is still + open. + + * A minor bugfix when pack bitmap is used with "rev-list --count". + + * An ancient test framework enhancement to allow color was not + entirely correct; this makes it work even when tput needs to read + from the ~/.terminfo under the user's real HOME directory. + + * Fix a small bug in our use of umask() return value. + + * "git rebase" did not exit with failure when format-patch it invoked + failed for whatever reason. + + * Disable "have we lost a race with competing repack?" check while + receiving a huge object transfer that runs index-pack. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.4.8.txt b/Documentation/RelNotes/2.4.8.txt new file mode 100644 index 0000000000..ad946b2673 --- /dev/null +++ b/Documentation/RelNotes/2.4.8.txt @@ -0,0 +1,21 @@ +Git v2.4.8 Release Notes +======================== + +Fixes since v2.4.7 +------------------ + + * Abandoning an already applied change in "git rebase -i" with + "--continue" left CHERRY_PICK_HEAD and confused later steps. + + * Various fixes around "git am" that applies a patch to a history + that is not there yet. + + * "git for-each-ref" reported "missing object" for 0{40} when it + encounters a broken ref. The lack of object whose name is 0{40} is + not the problem; the ref being broken is. + + * "git commit --cleanup=scissors" was not careful enough to protect + against getting fooled by a line that looked like scissors. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.5.0.txt b/Documentation/RelNotes/2.5.0.txt new file mode 100644 index 0000000000..87044504c5 --- /dev/null +++ b/Documentation/RelNotes/2.5.0.txt @@ -0,0 +1,563 @@ +Git 2.5 Release Notes +===================== + +Updates since v2.4 +------------------ + +UI, Workflows & Features + + * The bash completion script (in contrib/) learned a few options that + "git revert" takes. + + * Whitespace breakages in deleted and context lines can also be + painted in the output of "git diff" and friends with the new + --ws-error-highlight option. + + * List of commands shown by "git help" are grouped along the workflow + elements to help early learners. + + * "git p4" now detects the filetype (e.g. binary) correctly even when + the files are opened exclusively. + + * git p4 attempts to better handle branches in Perforce. + + * "git p4" learned "--changes-block-size <n>" to read the changes in + chunks from Perforce, instead of making one call to "p4 changes" + that may trigger "too many rows scanned" error from Perforce. + + * More workaround for Perforce's row number limit in "git p4". + + * Unlike "$EDITOR" and "$GIT_EDITOR" that can hold the path to the + command and initial options (e.g. "/path/to/emacs -nw"), 'git p4' + did not let the shell interpolate the contents of the environment + variable that name the editor "$P4EDITOR" (and "$EDITOR", too). + This release makes it in line with the rest of Git, as well as with + Perforce. + + * A new short-hand <branch>@{push} denotes the remote-tracking branch + that tracks the branch at the remote the <branch> would be pushed + to. + + * "git show-branch --topics HEAD" (with no other arguments) did not + do anything interesting. Instead, contrast the given revision + against all the local branches by default. + + * A replacement for contrib/workdir/git-new-workdir that does not + rely on symbolic links and make sharing of objects and refs safer + by making the borrowee and borrowers aware of each other. + + Consider this as still an experimental feature; its UI is still + likely to change. + + * Tweak the sample "store" backend of the credential helper to honor + XDG configuration file locations when specified. + + * A heuristic we use to catch mistyped paths on the command line + "git <cmd> <revs> <pathspec>" is to make sure that all the non-rev + parameters in the later part of the command line are names of the + files in the working tree, but that means "git grep $str -- \*.c" + must always be disambiguated with "--", because nobody sane will + create a file whose name literally is asterisk-dot-see. Loosen the + heuristic to declare that with a wildcard string the user likely + meant to give us a pathspec. + + * "git merge FETCH_HEAD" learned that the previous "git fetch" could + be to create an Octopus merge, i.e. recording multiple branches + that are not marked as "not-for-merge"; this allows us to lose an + old style invocation "git merge <msg> HEAD $commits..." in the + implementation of "git pull" script; the old style syntax can now + be deprecated (but not removed yet). + + * Filter scripts were run with SIGPIPE disabled on the Git side, + expecting that they may not read what Git feeds them to filter. + We however treated a filter that does not read its input fully + before exiting as an error. We no longer do and ignore EPIPE + when writing to feed the filter scripts. + + This changes semantics, but arguably in a good way. If a filter + can produce its output without fully consuming its input using + whatever magic, we now let it do so, instead of diagnosing it + as a programming error. + + * Instead of dying immediately upon failing to obtain a lock, the + locking (of refs etc) retries after a short while with backoff. + + * Introduce http.<url>.SSLCipherList configuration variable to tweak + the list of cipher suite to be used with libcURL when talking with + https:// sites. + + * "git subtree" script (in contrib/) used "echo -n" to produce + progress messages in a non-portable way. + + * "git subtree" script (in contrib/) does not have --squash option + when pushing, but the documentation and help text pretended as if + it did. + + * The Git subcommand completion (in contrib/) no longer lists credential + helpers among candidates; they are not something the end user would + invoke interactively. + + * The index file can be taught with "update-index --untracked-cache" + to optionally remember already seen untracked files, in order to + speed up "git status" in a working tree with tons of cruft. + + * "git mergetool" learned to drive WinMerge as a backend. + + * "git upload-pack" that serves "git fetch" can be told to serve + commits that are not at the tip of any ref, as long as they are + reachable from a ref, with uploadpack.allowReachableSHA1InWant + configuration variable. + + * "git cat-file --batch(-check)" learned the "--follow-symlinks" + option that follows an in-tree symbolic link when asked about an + object via extended SHA-1 syntax, e.g. HEAD:RelNotes that points at + Documentation/RelNotes/2.5.0.txt. With the new option, the command + behaves as if HEAD:Documentation/RelNotes/2.5.0.txt was given as + input instead. + + Consider this as still an experimental and incomplete feature: + + - We may want to do the same for in-index objects, e.g. + asking for :RelNotes with this option should give + :Documentation/RelNotes/2.5.0.txt, too + + - "git cat-file --follow-symlinks blob HEAD:RelNotes" + may also be something we want to allow in the future. + + * "git send-email" learned the alias file format used by the sendmail + program (in a simplified form; we obviously do not feed pipes). + + * Traditionally, external low-level 3-way merge drivers are expected + to produce their results based solely on the contents of the three + variants given in temporary files named by %O, %A and %B on their + command line. Additionally allow them to look at the final path + (given by %P). + + * "git blame" learned blame.showEmail configuration variable. + + * "git apply" cannot diagnose a patch corruption when the breakage is + to mark the length of the hunk shorter than it really is on the + hunk header line "@@ -l,k +m,n @@"; one special case it could is + when the hunk becomes no-op (e.g. k == n == 2 for two-line context + patch output), and it learned to do so in this special case. + + * Add the "--allow-unknown-type" option to "cat-file" to allow + inspecting loose objects of an experimental or a broken type. + + * Many long-running operations show progress eye-candy, even when + they are later backgrounded. Hide the eye-candy when the process + is sent to the background instead. + (merge a4fb76c lm/squelch-bg-progress later to maint). + + +Performance, Internal Implementation, Development Support etc. + + * "unsigned char [20]" used throughout the code to represent object + names are being converted into a semi-opaque "struct object_id". + This effort is expected to interfere with other topics in flight, + but hopefully will give us one extra level of abstraction in the + end, when completed. + + * for_each_ref() callback functions were taught to name the objects + not with "unsigned char sha1[20]" but with "struct object_id". + + * Catch a programmer mistake to feed a pointer not an array to + ARRAY_SIZE() macro, by using a couple of GCC extensions. + + * Some error messages in "git config" were emitted without calling + the usual error() facility. + + * When "add--interactive" splits a hunk into two overlapping hunks + and then let the user choose only one, it sometimes feeds an + incorrect patch text to "git apply". Add tests to demonstrate + this. + + I have a slight suspicion that this may be $gmane/87202 coming back + and biting us (I seem to have said "let's run with this and see + what happens" back then). + + * More line-ending tests. + + * An earlier rewrite to use strbuf_getwholeline() instead of fgets(3) + to read packed-refs file revealed that the former is unacceptably + inefficient. It has been optimized by using getdelim(3) when + available. + + * The refs API uses ref_lock struct which had its own "int fd", even + though the same file descriptor was in the lock struct it contains. + Clean-up the code to lose this redundant field. + + * There was a dead code that used to handle "git pull --tags" and + show special-cased error message, which was made irrelevant when + the semantics of the option changed back in Git 1.9 days. + (merge 19d122b pt/pull-tags-error-diag later to maint). + + * Help us to find broken test script that splits the body part of the + test by mistaken use of wrong kind of quotes. + (merge d93d5d5 jc/test-prereq-validate later to maint). + + * Developer support to automatically detect broken &&-chain in the + test scripts is now turned on by default. + (merge 92b269f jk/test-chain-lint later to maint). + + * Error reporting mechanism used in "refs" API has been made more + consistent. + + * "git pull" has more test coverage now. + + * "git pull" has become more aware of the options meant for + underlying "git fetch" and then learned to use parse-options + parser. + + * Clarify in the Makefile a guideline to decide use of USE_NSEC. + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.4 +---------------- + +Unless otherwise noted, all the fixes since v2.4 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * Git 2.4 broke setting verbosity and progress levels on "git clone" + with native transports. + (merge 822f0c4 mh/clone-verbosity-fix later to maint). + + * "git add -e" did not allow the user to abort the operation by + killing the editor. + (merge cb64800 jk/add-e-kill-editor later to maint). + + * Memory usage of "git index-pack" has been trimmed by tens of + per-cent. + (merge f0e7f11 nd/slim-index-pack-memory-usage later to maint). + + * "git rev-list --objects $old --not --all" to see if everything that + is reachable from $old is already connected to the existing refs + was very inefficient. + (merge b6e8a3b jk/still-interesting later to maint). + + * "hash-object --literally" introduced in v2.2 was not prepared to + take a really long object type name. + (merge 1427a7f jc/hash-object later to maint). + + * "git rebase --quiet" was not quite quiet when there is nothing to + do. + (merge 22946a9 jk/rebase-quiet-noop later to maint). + + * The completion for "log --decorate=" parameter value was incorrect. + (merge af16bda sg/complete-decorate-full-not-long later to maint). + + * "filter-branch" corrupted commit log message that ends with an + incomplete line on platforms with some "sed" implementations that + munge such a line. Work it around by avoiding to use "sed". + (merge df06201 jk/filter-branch-use-of-sed-on-incomplete-line later to maint). + + * "git daemon" fails to build from the source under NO_IPV6 + configuration (regression in 2.4). + (merge d358f77 jc/daemon-no-ipv6-for-2.4.1 later to maint). + + * Some time ago, "git blame" (incorrectly) lost the convert_to_git() + call when synthesizing a fake "tip" commit that represents the + state in the working tree, which broke folks who record the history + with LF line ending to make their project portable across platforms + while terminating lines in their working tree files with CRLF for + their platform. + (merge 4bf256d tb/blame-resurrect-convert-to-git later to maint). + + * We avoid setting core.worktree when the repository location is the + ".git" directory directly at the top level of the working tree, but + the code misdetected the case in which the working tree is at the + root level of the filesystem (which arguably is a silly thing to + do, but still valid). + (merge 84ccad8 jk/init-core-worktree-at-root later to maint). + + * "git commit --date=now" or anything that relies on approxidate lost + the daylight-saving-time offset. + (merge f6e6362 jc/epochtime-wo-tz later to maint). + + * Access to objects in repositories that borrow from another one on a + slow NFS server unnecessarily got more expensive due to recent code + becoming more cautious in a naive way not to lose objects to pruning. + (merge ee1c6c3 jk/prune-mtime later to maint). + + * The codepaths that read .gitignore and .gitattributes files have been + taught that these files encoded in UTF-8 may have UTF-8 BOM marker at + the beginning; this makes it in line with what we do for configuration + files already. + (merge 27547e5 cn/bom-in-gitignore later to maint). + + * a few helper scripts in the test suite did not report errors + correctly. + (merge de248e9 ep/fix-test-lib-functions-report later to maint). + + * The default $HOME/.gitconfig file created upon "git config --global" + that edits it had incorrectly spelled user.name and user.email + entries in it. + (merge 7e11052 oh/fix-config-default-user-name-section later to maint). + + * "git cat-file bl $blob" failed to barf even though there is no + object type that is "bl". + (merge b7994af jk/type-from-string-gently later to maint). + + * The usual "git diff" when seeing a file turning into a directory + showed a patchset to remove the file and create all files in the + directory, but "git diff --no-index" simply refused to work. Also, + when asked to compare a file and a directory, imitate POSIX "diff" + and compare the file with the file with the same name in the + directory, instead of refusing to run. + (merge 0615173 jc/diff-no-index-d-f later to maint). + + * "git rebase -i" moved the "current" command from "todo" to "done" a + bit too prematurely, losing a step when a "pick" did not even start. + (merge 8cbc57c ph/rebase-i-redo later to maint). + + * The connection initiation code for "ssh" transport tried to absorb + differences between the stock "ssh" and Putty-supplied "plink" and + its derivatives, but the logic to tell that we are using "plink" + variants were too loose and falsely triggered when "plink" appeared + anywhere in the path (e.g. "/home/me/bin/uplink/ssh"). + (merge baaf233 bc/connect-plink later to maint). + + * We have prepended $GIT_EXEC_PATH and the path "git" is installed in + (typically "/usr/bin") to $PATH when invoking subprograms and hooks + for almost eternity, but the original use case the latter tried to + support was semi-bogus (i.e. install git to /opt/foo/git and run it + without having /opt/foo on $PATH), and more importantly it has + become less and less relevant as Git grew more mainstream (i.e. the + users would _want_ to have it on their $PATH). Stop prepending the + path in which "git" is installed to users' $PATH, as that would + interfere the command search order people depend on (e.g. they may + not like versions of programs that are unrelated to Git in /usr/bin + and want to override them by having different ones in /usr/local/bin + and have the latter directory earlier in their $PATH). + (merge a0b4507 jk/git-no-more-argv0-path-munging later to maint). + + * core.excludesfile (defaulting to $XDG_HOME/git/ignore) is supposed + to be overridden by repository-specific .git/info/exclude file, but + the order was swapped from the beginning. This belatedly fixes it. + (merge 099d2d8 jc/gitignore-precedence later to maint). + + * There was a commented-out (instead of being marked to expect + failure) test that documented a breakage that was fixed since the + test was written; turn it into a proper test. + (merge 66d2e04 sb/t1020-cleanup later to maint). + + * The "log --decorate" enhancement in Git 2.4 that shows the commit + at the tip of the current branch e.g. "HEAD -> master", did not + work with --decorate=full. + (merge 429ad20 mg/log-decorate-HEAD later to maint). + + * The ref API did not handle cases where 'refs/heads/xyzzy/frotz' is + removed at the same time as 'refs/heads/xyzzy' is added (or vice + versa) very well. + (merge c628edf mh/ref-directory-file later to maint). + + * Multi-ref transaction support we merged a few releases ago + unnecessarily kept many file descriptors open, risking to fail with + resource exhaustion. This is for 2.4.x track. + (merge 185ce3a mh/write-refs-sooner-2.4 later to maint). + + * "git bundle verify" did not diagnose extra parameters on the + command line. + (merge 7886cfa ps/bundle-verify-arg later to maint). + + * Various documentation mark-up fixes to make the output more + consistent in general and also make AsciiDoctor (an alternative + formatter) happier. + (merge d0258b9 jk/asciidoc-markup-fix later to maint). + (merge ad3967a jk/stripspace-asciidoctor-fix later to maint). + (merge 975e382 ja/tutorial-asciidoctor-fix later to maint). + + * The code to read pack-bitmap wanted to allocate a few hundred + pointers to a structure, but by mistake allocated and leaked memory + enough to hold that many actual structures. Correct the allocation + size and also have it on stack, as it is small enough. + (merge 599dc76 rs/plug-leak-in-pack-bitmaps later to maint). + + * The pull.ff configuration was supposed to override the merge.ff + configuration, but it didn't. + (merge db9bb28 pt/pull-ff-vs-merge-ff later to maint). + + * "git pull --log" and "git pull --no-log" worked as expected, but + "git pull --log=20" did not. + (merge 5061a44 pt/pull-log-n later to maint). + + * "git rerere forget" in a repository without rerere enabled gave a + cryptic error message; it should be a silent no-op instead. + (merge 0544574 jk/rerere-forget-check-enabled later to maint). + + * "git rebase -i" fired post-rewrite hook when it shouldn't (namely, + when it was told to stop sequencing with 'exec' insn). + (merge 141ff8f mm/rebase-i-post-rewrite-exec later to maint). + + * Clarify that "log --raw" and "log --format=raw" are unrelated + concepts. + (merge 92de921 mm/log-format-raw-doc later to maint). + + * Make "git stash something --help" error out, so that users can + safely say "git stash drop --help". + (merge 5ba2831 jk/stash-options later to maint). + + * The clean/smudge interface did not work well when filtering an + empty contents (failed and then passed the empty input through). + It can be argued that a filter that produces anything but empty for + an empty input is nonsense, but if the user wants to do strange + things, then why not? + (merge f6a1e1e jh/filter-empty-contents later to maint). + + * Communication between the HTTP server and http_backend process can + lead to a dead-lock when relaying a large ref negotiation request. + Diagnose the situation better, and mitigate it by reading such a + request first into core (to a reasonable limit). + (merge 636614f jk/http-backend-deadlock later to maint). + + * "git clean pathspec..." tried to lstat(2) and complain even for + paths outside the given pathspec. + (merge 838d6a9 dt/clean-pathspec-filter-then-lstat later to maint). + + * Recent "git prune" traverses young unreachable objects to safekeep + old objects in the reachability chain from them, which sometimes + caused error messages that are unnecessarily alarming. + (merge ce4e7b2 jk/squelch-missing-link-warning-for-unreachable later to maint). + + * The configuration reader/writer uses mmap(2) interface to access + the files; when we find a directory, it barfed with "Out of memory?". + (merge 9ca0aaf jk/diagnose-config-mmap-failure later to maint). + + * "color.diff.plain" was a misnomer; give it 'color.diff.context' as + a more logical synonym. + (merge 8dbf3eb jk/color-diff-plain-is-context later to maint). + + * The setup code used to die when core.bare and core.worktree are set + inconsistently, even for commands that do not need working tree. + (merge fada767 jk/die-on-bogus-worktree-late later to maint). + + * Recent Mac OS X updates breaks the logic to detect that the machine + is on the AC power in the sample pre-auto-gc script. + (merge c54c7b3 pa/auto-gc-mac-osx later to maint). + + * "git commit --cleanup=scissors" was not careful enough to protect + against getting fooled by a line that looked like scissors. + (merge fbfa097 sg/commit-cleanup-scissors later to maint). + + * "Have we lost a race with competing repack?" check was too + expensive, especially while receiving a huge object transfer + that runs index-pack (e.g. "clone" or "fetch"). + (merge 0eeb077 jk/index-pack-reduce-recheck later to maint). + + * The tcsh completion writes a bash scriptlet but that would have + failed for users with noclobber set. + (merge 0b1f688 af/tcsh-completion-noclobber later to maint). + + * "git for-each-ref" reported "missing object" for 0{40} when it + encounters a broken ref. The lack of object whose name is 0{40} is + not the problem; the ref being broken is. + (merge 501cf47 mh/reporting-broken-refs-from-for-each-ref later to maint). + + * Various fixes around "git am" that applies a patch to a history + that is not there yet. + (merge 6ea3b67 pt/am-abort-fix later to maint). + + * "git fsck" used to ignore missing or invalid objects recorded in reflog. + (merge 19bf6c9 mh/fsck-reflog-entries later to maint). + + * "git format-patch --ignore-if-upstream A..B" did not like to be fed + tags as boundary commits. + (merge 9b7a61d jc/do-not-feed-tags-to-clear-commit-marks later to maint). + + * "git fetch --depth=<depth>" and "git clone --depth=<depth>" issued + a shallow transfer request even to an upload-pack that does not + support the capability. + (merge eb86a50 me/fetch-into-shallow-safety later to maint). + + * "git rebase" did not exit with failure when format-patch it invoked + failed for whatever reason. + (merge 60d708b cb/rebase-am-exit-code later to maint). + + * Fix a small bug in our use of umask() return value. + (merge 3096b2e jk/fix-refresh-utime later to maint). + + * An ancient test framework enhancement to allow color was not + entirely correct; this makes it work even when tput needs to read + from the ~/.terminfo under the user's real HOME directory. + (merge d5c1b7c rh/test-color-avoid-terminfo-in-original-home later to maint). + + * A minor bugfix when pack bitmap is used with "rev-list --count". + (merge c8a70d3 jk/rev-list-no-bitmap-while-pruning later to maint). + + * "git config" failed to update the configuration file when the + underlying filesystem is incapable of renaming a file that is still + open. + (merge 7a64592 kb/config-unmap-before-renaming later to maint). + + * Avoid possible ssize_t to int truncation. + (merge 6c8afe4 mh/strbuf-read-file-returns-ssize-t later to maint). + + * When you say "!<ENTER>" while running say "git log", you'd confuse + yourself in the resulting shell, that may look as if you took + control back to the original shell you spawned "git log" from but + that isn't what is happening. To that new shell, we leaked + GIT_PAGER_IN_USE environment variable that was meant as a local + communication between the original "Git" and subprocesses that was + spawned by it after we launched the pager, which caused many + "interesting" things to happen, e.g. "git diff | cat" still paints + its output in color by default. + + Stop leaking that environment variable to the pager's half of the + fork; we only need it on "Git" side when we spawn the pager. + (merge 124b519 jc/unexport-git-pager-in-use-in-pager later to maint). + + * Abandoning an already applied change in "git rebase -i" with + "--continue" left CHERRY_PICK_HEAD and confused later steps. + (merge 0e0aff4 js/rebase-i-clean-up-upon-continue-to-skip later to maint). + + * We used to ask libCURL to use the most secure authentication method + available when talking to an HTTP proxy only when we were told to + talk to one via configuration variables. We now ask libCURL to + always use the most secure authentication method, because the user + can tell libCURL to use an HTTP proxy via an environment variable + without using configuration variables. + (merge 5841520 et/http-proxyauth later to maint). + + * A fix to a minor regression to "git fsck" in v2.2 era that started + complaining about a body-less tag object when it lacks a separator + empty line after its header to separate it with a non-existent body. + (merge 84d18c0 jc/fsck-retire-require-eoh later to maint). + + * Code cleanups and documentation updates. + (merge 0269f96 mm/usage-log-l-can-take-regex later to maint). + (merge 64f2589 nd/t1509-chroot-test later to maint). + (merge d201a1e sb/test-bitmap-free-at-end later to maint). + (merge 05bfc7d sb/line-log-plug-pairdiff-leak later to maint). + (merge 846e5df pt/xdg-config-path later to maint). + (merge 1154aa4 jc/plug-fmt-merge-msg-leak later to maint). + (merge 319b678 jk/sha1-file-reduce-useless-warnings later to maint). + (merge 9a35c14 fg/document-commit-message-stripping later to maint). + (merge bbf431c ps/doc-packfile-vs-pack-file later to maint). + (merge 309a9e3 jk/skip-http-tests-under-no-curl later to maint). + (merge ccd593c dl/branch-error-message later to maint). + (merge 22570b6 rs/janitorial later to maint). + (merge 5c2a581 mc/commit-doc-grammofix later to maint). + (merge ce41720 ah/usage-strings later to maint). + (merge e6a268c sb/glossary-submodule later to maint). + (merge ec48a76 sb/submodule-doc-intro later to maint). + (merge 14f8b9b jk/clone-dissociate later to maint). + (merge 055c7e9 sb/pack-protocol-mention-smart-http later to maint). + (merge 7c37a5d jk/make-fix-dependencies later to maint). + (merge fc0aa39 sg/merge-summary-config later to maint). + (merge 329af6c pt/t0302-needs-sanity later to maint). + (merge d614f07 fk/doc-format-patch-vn later to maint). + (merge 72dbb36 sg/completion-commit-cleanup later to maint). + (merge e654eb2 es/utf8-stupid-compiler-workaround later to maint). + (merge 34b935c es/osx-header-pollutes-mask-macro later to maint). + (merge ab7fade jc/prompt-document-ps1-state-separator later to maint). + (merge 25f600e mm/describe-doc later to maint). + (merge 83fe167 mm/branch-doc-updates later to maint). + (merge 75d2e5a ls/hint-rev-list-count later to maint). + (merge edc8f71 cb/subtree-tests-update later to maint). + (merge 5330e6e sb/p5310-and-chain later to maint). + (merge c4ac525 tb/checkout-doc later to maint). + (merge e479c5f jk/pretty-encoding-doc later to maint). + (merge 7e837c6 ss/clone-guess-dir-name-simplify later to maint). diff --git a/Documentation/RelNotes/2.5.1.txt b/Documentation/RelNotes/2.5.1.txt new file mode 100644 index 0000000000..b70553308a --- /dev/null +++ b/Documentation/RelNotes/2.5.1.txt @@ -0,0 +1,65 @@ +Git v2.5.1 Release Notes +======================== + +Fixes since v2.5 +---------------- + + * Running an aliased command from a subdirectory when the .git thing + in the working tree is a gitfile pointing elsewhere did not work. + + * Often a fast-import stream builds a new commit on top of the + previous commit it built, and it often unconditionally emits a + "from" command to specify the first parent, which can be omitted in + such a case. This caused fast-import to forget the tree of the + previous commit and then re-read it from scratch, which was + inefficient. Optimize for this common case. + + * The "rev-parse --parseopt" mode parsed the option specification + and the argument hint in a strange way to allow '=' and other + special characters in the option name while forbidding them from + the argument hint. This made it impossible to define an option + like "--pair <key>=<value>" with "pair=key=value" specification, + which instead would have defined a "--pair=key <value>" option. + + * A "rebase" replays changes of the local branch on top of something + else, as such they are placed in stage #3 and referred to as + "theirs", while the changes in the new base, typically a foreign + work, are placed in stage #2 and referred to as "ours". Clarify + the "checkout --ours/--theirs". + + * An experimental "untracked cache" feature used uname(2) in a + slightly unportable way. + + * "sparse checkout" misbehaved for a path that is excluded from the + checkout when switching between branches that differ at the path. + + * The low-level "git send-pack" did not honor 'user.signingkey' + configuration variable when sending a signed-push. + + * An attempt to delete a ref by pushing into a repository whose HEAD + symbolic reference points at an unborn branch that cannot be + created due to ref D/F conflict (e.g. refs/heads/a/b exists, HEAD + points at refs/heads/a) failed. + + * "git subtree" (in contrib/) depended on "git log" output to be + stable, which was a no-no. Apply a workaround to force a + particular date format. + + * "git clone $URL" in recent releases of Git contains a regression in + the code that invents a new repository name incorrectly based on + the $URL. This has been corrected. + (merge db2e220 jk/guess-repo-name-regression-fix later to maint). + + * Running tests with the "-x" option to make them verbose had some + unpleasant interactions with other features of the test suite. + (merge 9b5fe78 jk/test-with-x later to maint). + + * "git pull" in recent releases of Git has a regression in the code + that allows custom path to the --upload-pack=<program>. This has + been corrected. + + * pipe() emulation used in Git for Windows looked at a wrong variable + when checking for an error from an _open_osfhandle() call. + +Also contains typofixes, documentation updates and trivial code +clean-ups. diff --git a/Documentation/RelNotes/2.6.0.txt b/Documentation/RelNotes/2.6.0.txt new file mode 100644 index 0000000000..09ece6c002 --- /dev/null +++ b/Documentation/RelNotes/2.6.0.txt @@ -0,0 +1,320 @@ +Git 2.6 Release Notes +===================== + +Updates since v2.5 +------------------ + +UI, Workflows & Features + + * An asterisk as a substring (as opposed to the entirety) of a path + component for both side of a refspec, e.g. + "refs/heads/o*:refs/remotes/heads/i*", is now allowed. + + * New userdiff pattern definition for fountain screenwriting markup + format has been added. + + * "git log" and friends learned a new "--date=format:..." option to + format timestamps using system's strftime(3). + + * "git fast-import" learned to respond to the get-mark command via + its cat-blob-fd interface. + + * "git rebase -i" learned "drop commit-object-name subject" command + as another way to skip replaying of a commit. + + * A new configuration variable can enable "--follow" automatically + when "git log" is run with one pathspec argument. + + * "git status" learned to show a more detailed information regarding + the "rebase -i" session in progress. + + * "git cat-file" learned "--batch-all-objects" option to enumerate all + available objects in the repository more quickly than "rev-list + --all --objects" (the output includes unreachable objects, though). + + * "git fsck" learned to ignore errors on a set of known-to-be-bad + objects, and also allows the warning levels of various kinds of + non-critical breakages to be tweaked. + + * "git rebase -i"'s list of todo is made configurable. + + * "git send-email" now performs alias-expansion on names that are + given via --cccmd, etc. + + * An environment variable GIT_REPLACE_REF_BASE tells Git to look into + refs hierarchy other than refs/replace/ for the object replacement + data. + + * Allow untracked cache (experimental) to be used when sparse + checkout (experimental) is also in use. + + * "git pull --rebase" has been taught to pay attention to + rebase.autostash configuration. + + * The command-line completion script (in contrib/) has been updated. + + * A negative !ref entry in multi-value transfer.hideRefs + configuration can be used to say "don't hide this one". + + * After "git am" without "-3" stops, running "git am -" pays attention + to "-3" only for the patch that caused the original invocation + to stop. + + * When linked worktree is used, simultaneous "notes merge" instances + for the same ref in refs/notes/* are prevented from stomping on + each other. + + * "git send-email" learned a new option --smtp-auth to limit the SMTP + AUTH mechanisms to be used to a subset of what the system library + supports. + + * A new configuration variable http.sslVersion can be used to specify + what specific version of SSL/TLS to use to make a connection. + + * "git notes merge" can be told with "--strategy=<how>" option how to + automatically handle conflicts; this can now be configured by + setting notes.mergeStrategy configuration variable. + + * "git log --cc" did not show any patch, even though most of the time + the user meant "git log --cc -p -m" to see patch output for commits + with a single parent, and combined diff for merge commits. The + command is taught to DWIM "--cc" (without "--raw" and other forms + of output specification) to "--cc -p -m". + + * "git config --list" output was hard to parse when values consist of + multiple lines. "--name-only" option is added to help this. + + +Performance, Internal Implementation, Development Support etc. + + * In preparation for allowing different "backends" to store the refs + in a way different from the traditional "one ref per file in + $GIT_DIR or in a $GIT_DIR/packed-refs file" filesystem storage, + direct filesystem access to ref-like things like CHERRY_PICK_HEAD + from scripts and programs has been reduced. + + * Computation of untracked status indicator by bash prompt + script (in contrib/) has been optimized. + + * Memory use reduction when commit-slab facility is used to annotate + sparsely (which is not recommended in the first place). + + * Clean up refs API and make "git clone" less intimate with the + implementation detail. + + * "git pull" was reimplemented in C. + + * The packet tracing machinery allows to capture an incoming pack + data to a file for debugging. + + * Move machinery to parse human-readable scaled numbers like 1k, 4M, + and 2G as an option parameter's value from pack-objects to + parse-options API, to make it available to other codepaths. + + * "git verify-tag" and "git verify-commit" have been taught to share + more code, and then learned to optionally show the verification + message from the underlying GPG implementation. + + * Various enhancements around "git am" reading patches generated by + foreign SCM have been made. + + * Ref listing by "git branch -l" and "git tag -l" commands has + started to be rebuilt, based on the for-each-ref machinery. + + * The code to perform multi-tree merges has been taught to repopulate + the cache-tree upon a successful merge into the index, so that + subsequent "diff-index --cached" (hence "status") and "write-tree" + (hence "commit") will go faster. + + The same logic in "git checkout" may now be removed, but that is a + separate issue. + + * Tests that assume how reflogs are represented on the filesystem too + much have been corrected. + + * "git am" has been rewritten in "C". + + * git_path() and mkpath() are handy helper functions but it is easy + to misuse, as the callers need to be careful to keep the number of + active results below 4. Their uses have been reduced. + + * The "lockfile" API has been rebuilt on top of a new "tempfile" API. + + * To prepare for allowing a different "ref" backend to be plugged in + to the system, update_ref()/delete_ref() have been taught about + ref-like things like MERGE_HEAD that are per-worktree (they will + always be written to the filesystem inside $GIT_DIR). + + * The gitmodules API that is accessed from the C code learned to + cache stuff lazily. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v2.5 +---------------- + +Unless otherwise noted, all the fixes since v2.5 in the maintenance +track are contained in this release (see the maintenance releases' +notes for details). + + * "git subtree" (in contrib/) depended on "git log" output to be + stable, which was a no-no. Apply a workaround to force a + particular date format. + (merge e7aac44 da/subtree-date-confusion later to maint). + + * An attempt to delete a ref by pushing into a repository whose HEAD + symbolic reference points at an unborn branch that cannot be + created due to ref D/F conflict (e.g. refs/heads/a/b exists, HEAD + points at refs/heads/a) failed. + (merge b112b14 jx/do-not-crash-receive-pack-wo-head later to maint). + + * The low-level "git send-pack" did not honor 'user.signingkey' + configuration variable when sending a signed-push. + (merge d830d39 db/send-pack-user-signingkey later to maint). + + * "sparse checkout" misbehaved for a path that is excluded from the + checkout when switching between branches that differ at the path. + (merge 7d78241 as/sparse-checkout-removal later to maint). + + * An experimental "untracked cache" feature used uname(2) in a + slightly unportable way. + (merge 100e433 cb/uname-in-untracked later to maint). + + * A "rebase" replays changes of the local branch on top of something + else, as such they are placed in stage #3 and referred to as + "theirs", while the changes in the new base, typically a foreign + work, are placed in stage #2 and referred to as "ours". Clarify + the "checkout --ours/--theirs". + (merge f303016 se/doc-checkout-ours-theirs later to maint). + + * The "rev-parse --parseopt" mode parsed the option specification + and the argument hint in a strange way to allow '=' and other + special characters in the option name while forbidding them from + the argument hint. This made it impossible to define an option + like "--pair <key>=<value>" with "pair=key=value" specification, + which instead would have defined a "--pair=key <value>" option. + (merge 2d893df ib/scripted-parse-opt-better-hint-string later to maint). + + * Often a fast-import stream builds a new commit on top of the + previous commit it built, and it often unconditionally emits a + "from" command to specify the first parent, which can be omitted in + such a case. This caused fast-import to forget the tree of the + previous commit and then re-read it from scratch, which was + inefficient. Optimize for this common case. + (merge 0df3245 mh/fast-import-optimize-current-from later to maint). + + * Running an aliased command from a subdirectory when the .git thing + in the working tree is a gitfile pointing elsewhere did not work. + (merge d95138e nd/export-worktree later to maint). + + * "Is this subdirectory a separate repository that should not be + touched?" check "git clean" was inefficient. This was replaced + with a more optimized check. + (merge 38ae878 ee/clean-remove-dirs later to maint). + + * The "new-worktree-mode" hack in "checkout" that was added in + nd/multiple-work-trees topic has been removed by updating the + implementation of new "worktree add". + (merge 65f9b75 es/worktree-add-cleanup later to maint). + + * Remove remaining cruft from "git checkout --to", which + transitioned to "git worktree add". + (merge 114ff88 es/worktree-add later to maint). + + * An off-by-one error made "git remote" to mishandle a remote with a + single letter nickname. + (merge bc598c3 mh/get-remote-group-fix later to maint). + + * "git clone $URL", when cloning from a site whose sole purpose is to + host a single repository (hence, no path after <scheme>://<site>/), + tried to use the site name as the new repository name, but did not + remove username or password when <site> part was of the form + <user>@<pass>:<host>. The code is taught to redact these. + (merge adef956 ps/guess-repo-name-at-root later to maint). + + * Running tests with the "-x" option to make them verbose had some + unpleasant interactions with other features of the test suite. + (merge 9b5fe78 jk/test-with-x later to maint). + + * t1509 test that requires a dedicated VM environment had some + bitrot, which has been corrected. + (merge faacc5a ps/t1509-chroot-test-fixup later to maint). + + * "git pull" in recent releases of Git has a regression in the code + that allows custom path to the --upload-pack=<program>. This has + been corrected. + + Note that this is irrelevant for 'master' with "git pull" rewritten + in C. + (merge 22d6857 mm/pull-upload-pack later to maint). + + * When trying to see that an object does not exist, a state errno + leaked from our "first try to open a packfile with O_NOATIME and + then if it fails retry without it" logic on a system that refuses + O_NOATIME. This confused us and caused us to die, saying that the + packfile is unreadable, when we should have just reported that the + object does not exist in that packfile to the caller. + (merge dff6f28 cb/open-noatime-clear-errno later to maint). + + * The codepath to produce error messages had a hard-coded limit to + the size of the message, primarily to avoid memory allocation while + calling die(). + (merge f4c3edc jk/long-error-messages later to maint). + + * strbuf_read() used to have one extra iteration (and an unnecessary + strbuf_grow() of 8kB), which was eliminated. + (merge 3ebbd00 jh/strbuf-read-use-read-in-full later to maint). + + * We rewrote one of the build scripts in Perl but this reimplements + in Bourne shell. + (merge 82aec45 sg/help-group later to maint). + + * The experimental untracked-cache feature were buggy when paths with + a few levels of subdirectories are involved. + (merge 73f9145 dt/untracked-subdir later to maint). + + * "interpret-trailers" helper mistook a single-liner log message that + has a colon as the end of existing trailer. + (merge 6262fe9 cc/trailers-corner-case-fix later to maint). + + * "git describe" without argument defaulted to describe the HEAD + commit, but "git describe --contains" didn't. Arguably, in a + repository used for active development, such defaulting would not + be very useful as the tip of branch is typically not tagged, but it + is better to be consistent. + (merge 2bd0706 sg/describe-contains later to maint). + + * The client side codepaths in "git push" have been cleaned up + and the user can request to perform an optional "signed push", + i.e. sign only when the other end accepts signed push. + (merge 68c757f db/push-sign-if-asked later to maint). + + * Because the configuration system does not allow "alias.0foo" and + "pager.0foo" as the configuration key, the user cannot use '0foo' + as a custom command name anyway, but "git 0foo" tried to look these + keys up and emitted useless warnings before saying '0foo is not a + git command'. These warning messages have been squelched. + (merge 9e9de18 jk/fix-alias-pager-config-key-warnings later to maint). + + * "git rev-list" does not take "--notes" option, but did not complain + when one is given. + (merge 2aea7a5 jk/rev-list-has-no-notes later to maint). + + * Code cleanups and documentation updates. + (merge 1c601af es/doc-clean-outdated-tools later to maint). + (merge 3581304 kn/tag-doc-fix later to maint). + (merge 3a59e59 kb/i18n-doc later to maint). + (merge 45abdee sb/remove-unused-var-from-builtin-add later to maint). + (merge 14691e3 sb/parse-options-codeformat later to maint). + (merge 4a6ada3 ad/bisect-cleanup later to maint). + (merge da4c5ad ta/docfix-index-format-tech later to maint). + (merge ae25fd3 sb/check-return-from-read-ref later to maint). + (merge b3325df nd/dwim-wildcards-as-pathspecs later to maint). + (merge 7aa9b9b sg/wt-status-header-inclusion later to maint). + (merge f04c690 as/docfix-reflog-expire-unreachable later to maint). + (merge 1269847 sg/t3020-typofix later to maint). + (merge 8b54c23 jc/calloc-pathspec later to maint). + (merge a6926b8 po/po-readme later to maint). + (merge 54d160e ss/fix-config-fd-leak later to maint). diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches index d0a4733e45..98fc4cc1d0 100644 --- a/Documentation/SubmittingPatches +++ b/Documentation/SubmittingPatches @@ -57,7 +57,8 @@ change, the approach taken by the change, and if relevant how this differs substantially from the prior version, are all good things to have. -Make sure that you have tests for the bug you are fixing. +Make sure that you have tests for the bug you are fixing. See +t/README for guidance. When adding a new feature, make sure that you have new tests to show the feature triggers the new behaviour when it should, and to show the @@ -65,7 +66,20 @@ feature does not trigger when it shouldn't. Also make sure that the test suite passes after your commit. Do not forget to update the documentation to describe the updated behaviour. -Oh, another thing. I am picky about whitespaces. Make sure your +Speaking of the documentation, it is currently a liberal mixture of US +and UK English norms for spelling and grammar, which is somewhat +unfortunate. A huge patch that touches the files all over the place +only to correct the inconsistency is not welcome, though. Potential +clashes with other changes that can result from such a patch are not +worth it. We prefer to gradually reconcile the inconsistencies in +favor of US English, with small and easily digestible patches, as a +side effect of doing some other real work in the vicinity (e.g. +rewriting a paragraph for clarity, while turning en_UK spelling to +en_US). Obvious typographical fixes are much more welcomed ("teh -> +"the"), preferably submitted as independent patches separate from +other documentation changes. + +Oh, another thing. We are picky about whitespaces. Make sure your changes do not trigger errors with the sample pre-commit hook shipped in templates/hooks--pre-commit. To help ensure this does not happen, run git diff --check on your changes before you commit. @@ -122,12 +136,24 @@ that is fine, but please mark it as such. (4) Sending your patches. +Learn to use format-patch and send-email if possible. These commands +are optimized for the workflow of sending patches, avoiding many ways +your existing e-mail client that is optimized for "multipart/*" mime +type e-mails to corrupt and render your patches unusable. + People on the Git mailing list need to be able to read and comment on the changes you are submitting. It is important for a developer to be able to "quote" your changes, using standard e-mail tools, so that they may comment on specific portions of -your code. For this reason, all patches should be submitted -"inline". If your log message (including your name on the +your code. For this reason, each patch should be submitted +"inline" in a separate message. + +Multiple related patches should be grouped into their own e-mail +thread to help readers find all parts of the series. To that end, +send them as replies to either an additional "cover letter" message +(see below), the first patch, or the respective preceding patch. + +If your log message (including your name on the Signed-off-by line) is not writable in ASCII, make sure that you send off a message in the correct encoding. @@ -155,8 +181,11 @@ message starts, you can put a "From: " line to name that person. You often want to add additional explanation about the patch, other than the commit message itself. Place such "cover letter" -material between the three dash lines and the diffstat. Git-notes -can also be inserted using the `--notes` option. +material between the three-dash line and the diffstat. For +patches requiring multiple iterations of review and discussion, +an explanation of changes between each iteration can be kept in +Git-notes and inserted automatically following the three-dash +line via `git format-patch --notes`. Do not attach the patch as a MIME attachment, compressed or not. Do not let your e-mail client send quoted-printable. Do not let @@ -234,15 +263,15 @@ pretty simple: if you can certify the below: person who certified (a), (b) or (c) and I have not modified it. - (d) I understand and agree that this project and the contribution - are public and that a record of the contribution (including all - personal information I submit with it, including my sign-off) is - maintained indefinitely and may be redistributed consistent with - this project or the open source license(s) involved. + (d) I understand and agree that this project and the contribution + are public and that a record of the contribution (including all + personal information I submit with it, including my sign-off) is + maintained indefinitely and may be redistributed consistent with + this project or the open source license(s) involved. then you just add a line saying - Signed-off-by: Random J Developer <random@developer.example.org> + Signed-off-by: Random J Developer <random@developer.example.org> This line can be automatically added by Git if you run the git-commit command with the -s option. @@ -317,7 +346,7 @@ suggests to the contributors: spend their time to improve your patch. Go back to step (2). (4) The list forms consensus that the last round of your patch is - good. Send it to the list and cc the maintainer. + good. Send it to the maintainer and cc the list. (5) A topic branch is created with the patch and is merged to 'next', and cooked further and eventually graduates to 'master'. diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt index 4e55b1564e..a09969ba08 100644 --- a/Documentation/blame-options.txt +++ b/Documentation/blame-options.txt @@ -4,19 +4,19 @@ --root:: Do not treat root commits as boundaries. This can also be - controlled via the `blame.showroot` config option. + controlled via the `blame.showRoot` config option. --show-stats:: Include additional statistics at the end of blame output. -L <start>,<end>:: --L :<regex>:: - Annotate only the given line range. <start> and <end> are optional. - ``-L <start>'' or ``-L <start>,'' spans from <start> to end of file. - ``-L ,<end>'' spans from start of file to <end>. +-L :<funcname>:: + Annotate only the given line range. May be specified multiple times. + Overlapping ranges are allowed. ++ +<start> and <end> are optional. ``-L <start>'' or ``-L <start>,'' spans from +<start> to end of file. ``-L ,<end>'' spans from start of file to <end>. + -<start> and <end> can take one of these forms: - include::line-range-format.txt[] -l:: diff --git a/Documentation/cmd-list.perl b/Documentation/cmd-list.perl index 04f99778d8..5aa73cfe45 100755 --- a/Documentation/cmd-list.perl +++ b/Documentation/cmd-list.perl @@ -38,6 +38,10 @@ sub format_one { } } +while (<>) { + last if /^### command list/; +} + my %cmds = (); for (sort <>) { next if /^#/; diff --git a/Documentation/config.txt b/Documentation/config.txt index 6b35578711..0c351b9bcf 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -14,7 +14,8 @@ the fully qualified variable name of the variable itself is the last dot-separated segment and the section name is everything before the last dot. The variable names are case-insensitive, allow only alphanumeric characters and `-`, and must start with an alphabetic character. Some -variables may appear multiple times. +variables may appear multiple times; we say then that the variable is +multivalued. Syntax ~~~~~~ @@ -25,7 +26,7 @@ blank lines are ignored. The file consists of sections and variables. A section begins with the name of the section in square brackets and continues until the next -section begins. Section names are not case sensitive. Only alphanumeric +section begins. Section names are case-insensitive. Only alphanumeric characters, `-` and `.` are allowed in section names. Each variable must belong to some section, which means that there must be a section header before the first setting of a variable. @@ -40,8 +41,8 @@ in the section header, like in the example below: -------- Subsection names are case sensitive and can contain any characters except -newline (doublequote `"` and backslash have to be escaped as `\"` and `\\`, -respectively). Section headers cannot span multiple +newline (doublequote `"` and backslash can be included by escaping them +as `\"` and `\\`, respectively). Section headers cannot span multiple lines. Variables may belong directly to a section or to a given subsection. You can have `[section]` if you have `[section "subsection"]`, but you don't need to. @@ -53,38 +54,27 @@ restrictions as section names. All the other lines (and the remainder of the line after the section header) are recognized as setting variables, in the form -'name = value'. If there is no equal sign on the line, the entire line -is taken as 'name' and the variable is recognized as boolean "true". +'name = value' (or just 'name', which is a short-hand to say that +the variable is the boolean "true"). The variable names are case-insensitive, allow only alphanumeric characters -and `-`, and must start with an alphabetic character. There can be more -than one value for a given variable; we say then that the variable is -multivalued. - -Leading and trailing whitespace in a variable value is discarded. -Internal whitespace within a variable value is retained verbatim. +and `-`, and must start with an alphabetic character. -The values following the equals sign in variable assign are all either -a string, an integer, or a boolean. Boolean values may be given as yes/no, -1/0, true/false or on/off. Case is not significant in boolean values, when -converting value to the canonical form using '--bool' type specifier; -'git config' will ensure that the output is "true" or "false". +A line that defines a value can be continued to the next line by +ending it with a `\`; the backquote and the end-of-line are +stripped. Leading whitespaces after 'name =', the remainder of the +line after the first comment character '#' or ';', and trailing +whitespaces of the line are discarded unless they are enclosed in +double quotes. Internal whitespaces within the value are retained +verbatim. -String values may be entirely or partially enclosed in double quotes. -You need to enclose variable values in double quotes if you want to -preserve leading or trailing whitespace, or if the variable value contains -comment characters (i.e. it contains '#' or ';'). -Double quote `"` and backslash `\` characters in variable values must -be escaped: use `\"` for `"` and `\\` for `\`. +Inside double quotes, double quote `"` and backslash `\` characters +must be escaped: use `\"` for `"` and `\\` for `\`. The following escape sequences (beside `\"` and `\\`) are recognized: `\n` for newline character (NL), `\t` for horizontal tabulation (HT, TAB) -and `\b` for backspace (BS). No other char escape sequence, nor octal -char sequences are valid. +and `\b` for backspace (BS). Other char escape sequences (including octal +escape sequences) are invalid. -Variable values ending in a `\` are continued on the next line in the -customary UNIX fashion. - -Some variables may require a special value format. Includes ~~~~~~~~ @@ -126,13 +116,72 @@ Example path = foo ; expand "foo" relative to the current file path = ~/foo ; expand "foo" in your $HOME directory + +Values +~~~~~~ + +Values of many variables are treated as a simple string, but there +are variables that take values of specific types and there are rules +as to how to spell them. + +boolean:: + + When a variable is said to take a boolean value, many + synonyms are accepted for 'true' and 'false'; these are all + case-insensitive. + + true;; Boolean true can be spelled as `yes`, `on`, `true`, + or `1`. Also, a variable defined without `= <value>` + is taken as true. + + false;; Boolean false can be spelled as `no`, `off`, + `false`, or `0`. ++ +When converting value to the canonical form using '--bool' type +specifier; 'git config' will ensure that the output is "true" or +"false" (spelled in lowercase). + +integer:: + The value for many variables that specify various sizes can + be suffixed with `k`, `M`,... to mean "scale the number by + 1024", "by 1024x1024", etc. + +color:: + The value for a variables that takes a color is a list of + colors (at most two) and attributes (at most one), separated + by spaces. The colors accepted are `normal`, `black`, + `red`, `green`, `yellow`, `blue`, `magenta`, `cyan` and + `white`; the attributes are `bold`, `dim`, `ul`, `blink` and + `reverse`. The first color given is the foreground; the + second is the background. The position of the attribute, if + any, doesn't matter. Attributes may be turned off specifically + by prefixing them with `no` (e.g., `noreverse`, `noul`, etc). ++ +Colors (foreground and background) may also be given as numbers between +0 and 255; these use ANSI 256-color mode (but note that not all +terminals may support this). If your terminal supports it, you may also +specify 24-bit RGB values as hex, like `#ff0ab3`. ++ +The attributes are meant to be reset at the beginning of each item +in the colored output, so setting color.decorate.branch to `black` +will paint that branch name in a plain `black`, even if the previous +thing on the same output line (e.g. opening parenthesis before the +list of branch names in `log --decorate` output) is set to be +painted with `bold` or some other attribute. + + Variables ~~~~~~~~~ Note that this list is non-comprehensive and not necessarily complete. For command-specific variables, you will find a more detailed description -in the appropriate manual page. You will find a description of non-core -porcelain configuration variables in the respective porcelain documentation. +in the appropriate manual page. + +Other git-related tools may and do use their own variables. When +inventing new variables for use in your own tool, make sure their +names do not conflict with those that are used by Git itself and +other popular tools, and describe them in your documentation. + advice.*:: These variables control various optional help messages designed to @@ -142,19 +191,13 @@ advice.*:: -- pushUpdateRejected:: Set this variable to 'false' if you want to disable - 'pushNonFFCurrent', 'pushNonFFDefault', + 'pushNonFFCurrent', 'pushNonFFMatching', 'pushAlreadyExists', 'pushFetchFirst', and 'pushNeedsForce' simultaneously. pushNonFFCurrent:: Advice shown when linkgit:git-push[1] fails due to a non-fast-forward update to the current branch. - pushNonFFDefault:: - Advice to set 'push.default' to 'upstream' or 'current' - when you ran linkgit:git-push[1] and pushed 'matching - refs' by default (i.e. you did not provide an explicit - refspec, and no 'push.default' configuration was set) - and it resulted in a non-fast-forward error. pushNonFFMatching:: Advice shown when you ran linkgit:git-push[1] and pushed 'matching refs' explicitly (i.e. you used ':', or @@ -170,8 +213,8 @@ advice.*:: pushNeedsForce:: Shown when linkgit:git-push[1] rejects an update that tries to overwrite a remote ref that points at an - object that is not a committish, or make the remote - ref point at an object that is not a committish. + object that is not a commit-ish, or make the remote + ref point at an object that is not a commit-ish. statusHints:: Show directions on how to proceed from the current state in the output of linkgit:git-status[1], in @@ -205,15 +248,28 @@ advice.*:: -- core.fileMode:: - If false, the executable bit differences between the index and - the working tree are ignored; useful on broken filesystems like FAT. - See linkgit:git-update-index[1]. + Tells Git if the executable bit of files in the working tree + is to be honored. + -The default is true, except linkgit:git-clone[1] or linkgit:git-init[1] -will probe and set core.fileMode false if appropriate when the -repository is created. +Some filesystems lose the executable bit when a file that is +marked as executable is checked out, or checks out an +non-executable file with executable bit on. +linkgit:git-clone[1] or linkgit:git-init[1] probe the filesystem +to see if it handles the executable bit correctly +and this variable is automatically set as necessary. ++ +A repository, however, may be on a filesystem that handles +the filemode correctly, and this variable is set to 'true' +when created, but later may be made accessible from another +environment that loses the filemode (e.g. exporting ext4 via +CIFS mount, visiting a Cygwin created repository with +Git for Windows or Eclipse). +In such a case it may be necessary to set this variable to 'false'. +See linkgit:git-update-index[1]. ++ +The default is true (when core.filemode is not specified in the config file). -core.ignorecase:: +core.ignoreCase:: If true, this option enables various workarounds to enable Git to work better on filesystems that are not case sensitive, like FAT. For example, if a directory listing finds @@ -222,18 +278,29 @@ core.ignorecase:: "Makefile". + The default is false, except linkgit:git-clone[1] or linkgit:git-init[1] -will probe and set core.ignorecase true if appropriate when the repository +will probe and set core.ignoreCase true if appropriate when the repository is created. -core.precomposeunicode:: +core.precomposeUnicode:: This option is only used by Mac OS implementation of Git. - When core.precomposeunicode=true, Git reverts the unicode decomposition + When core.precomposeUnicode=true, Git reverts the unicode decomposition of filenames done by Mac OS. This is useful when sharing a repository between Mac OS and Linux or Windows. (Git for Windows 1.7.10 or higher is needed, or Git under cygwin 1.7). When false, file names are handled fully transparent by Git, which is backward compatible with older versions of Git. +core.protectHFS:: + If set to true, do not allow checkout of paths that would + be considered equivalent to `.git` on an HFS+ filesystem. + Defaults to `true` on Mac OS, and `false` elsewhere. + +core.protectNTFS:: + If set to true, do not allow checkout of paths that would + cause problems with the NTFS filesystem, e.g. conflict with + 8.3 "short" names. + Defaults to `true` on Windows, and `false` elsewhere. + core.trustctime:: If false, the ctime differences between the index and the working tree are ignored; useful when the inode change time @@ -241,13 +308,13 @@ core.trustctime:: crawlers and some backup systems). See linkgit:git-update-index[1]. True by default. -core.checkstat:: +core.checkStat:: Determines which stat fields to match between the index and work tree. The user can set this to 'default' or 'minimal'. Default (or explicitly 'default'), is to check all fields, including the sub-second part of mtime and ctime. -core.quotepath:: +core.quotePath:: The commands that output paths (e.g. 'ls-files', 'diff'), when not given the `-z` option, will quote "unusual" characters in the pathname by enclosing the @@ -352,14 +419,19 @@ This is useful for excluding servers inside a firewall from proxy use, while defaulting to a common proxy for external domains. core.ignoreStat:: - If true, commands which modify both the working tree and the index - will mark the updated paths with the "assume unchanged" bit in the - index. These marked files are then assumed to stay unchanged in the - working tree, until you mark them otherwise manually - Git will not - detect the file changes by lstat() calls. This is useful on systems - where those are very slow, such as Microsoft Windows. - See linkgit:git-update-index[1]. - False by default. + If true, Git will avoid using lstat() calls to detect if files have + changed by setting the "assume-unchanged" bit for those tracked files + which it has updated identically in both the index and working tree. ++ +When files are modified outside of Git, the user will need to stage +the modified files explicitly (e.g. see 'Examples' section in +linkgit:git-update-index[1]). +Git will not normally detect changes to those files. ++ +This is useful on systems where lstat() calls are very slow, such as +CIFS/Microsoft Windows. ++ +False by default. core.preferSymlinkRefs:: Instead of the default "symref" format for HEAD @@ -381,8 +453,10 @@ false), while all other repositories are assumed to be bare (bare core.worktree:: Set the path to the root of the working tree. + If GIT_COMMON_DIR environment variable is set, core.worktree + is ignored and not used for determining the root of working tree. This can be overridden by the GIT_WORK_TREE environment - variable and the '--work-tree' command line option. + variable and the '--work-tree' command-line option. The value can be an absolute path or relative to the path to the .git directory, which is either specified by --git-dir or GIT_DIR, or automatically discovered. @@ -446,9 +520,9 @@ core.compression:: -1 is the zlib default. 0 means no compression, and 1..9 are various speed/size tradeoffs, 9 being slowest. If set, this provides a default to other compression variables, - such as 'core.loosecompression' and 'pack.compression'. + such as 'core.looseCompression' and 'pack.compression'. -core.loosecompression:: +core.looseCompression:: An integer -1..9, indicating the compression level for objects that are not in a pack file. -1 is the zlib default. 0 means no compression, and 1..9 are various speed/size tradeoffs, 9 being @@ -490,7 +564,7 @@ core.deltaBaseCacheLimit:: to avoid unpacking and decompressing frequently used base objects multiple times. + -Default is 16 MiB on all platforms. This should be reasonable +Default is 96 MiB on all platforms. This should be reasonable for all users/operating systems, except on the largest projects. You probably do not need to adjust this value. + @@ -500,7 +574,8 @@ core.bigFileThreshold:: Files larger than this size are stored deflated, without attempting delta compression. Storing large files without delta compression avoids excessive memory usage, at the - slight expense of increased disk usage. + slight expense of increased disk usage. Additionally files + larger than this size are always treated as binary. + Default is 512 MiB on all platforms. This should be reasonable for most projects as source code and other text files can still @@ -508,7 +583,7 @@ be delta compressed, but larger binary media files won't be. + Common unit suffixes of 'k', 'm', or 'g' are supported. -core.excludesfile:: +core.excludesFile:: In addition to '.gitignore' (per-directory) and '.git/info/exclude', Git looks into this file for patterns of files which are not meant to be tracked. "`~/`" is expanded @@ -517,20 +592,20 @@ core.excludesfile:: If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/ignore is used instead. See linkgit:gitignore[5]. -core.askpass:: +core.askPass:: Some commands (e.g. svn and http interfaces) that interactively ask for a password can be told to use an external program given via the value of this variable. Can be overridden by the 'GIT_ASKPASS' environment variable. If not set, fall back to the value of the 'SSH_ASKPASS' environment variable or, failing that, a simple password prompt. The external program shall be given a suitable prompt as - command line argument and write the password on its STDOUT. + command-line argument and write the password on its STDOUT. -core.attributesfile:: +core.attributesFile:: In addition to '.gitattributes' (per-directory) and '.git/info/attributes', Git looks into this file for attributes (see linkgit:gitattributes[5]). Path expansions are made the same - way as for `core.excludesfile`. Its default value is + way as for `core.excludesFile`. Its default value is $XDG_CONFIG_HOME/git/attributes. If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/attributes is used instead. @@ -540,11 +615,20 @@ core.editor:: variable when it is set, and the environment variable `GIT_EDITOR` is not set. See linkgit:git-var[1]. -core.commentchar:: +core.commentChar:: Commands such as `commit` and `tag` that lets you edit messages consider a line that begins with this character commented, and removes them after the editor returns (default '#'). ++ +If set to "auto", `git-commit` would select a character that is not +the beginning character of any line in existing commit messages. + +core.packedRefsTimeout:: + The length of time, in milliseconds, to retry when trying to + lock the `packed-refs` file. Value 0 means not to retry at + all; -1 means to try indefinitely. Default is 1000 (i.e., + retry for 1 second). sequence.editor:: Text editor used by `git rebase -i` for editing the rebase instruction file. @@ -553,22 +637,29 @@ sequence.editor:: When not configured the default commit message editor is used instead. core.pager:: - The command that Git will use to paginate output. Can - be overridden with the `GIT_PAGER` environment - variable. Note that Git sets the `LESS` environment - variable to `FRSX` if it is unset when it runs the - pager. One can change these settings by setting the - `LESS` variable to some other value. Alternately, - these settings can be overridden on a project or - global basis by setting the `core.pager` option. - Setting `core.pager` has no effect on the `LESS` - environment variable behaviour above, so if you want - to override Git's default settings this way, you need - to be explicit. For example, to disable the S option - in a backward compatible manner, set `core.pager` - to `less -+S`. This will be passed to the shell by - Git, which will translate the final command to - `LESS=FRSX less -+S`. + Text viewer for use by Git commands (e.g., 'less'). The value + is meant to be interpreted by the shell. The order of preference + is the `$GIT_PAGER` environment variable, then `core.pager` + configuration, then `$PAGER`, and then the default chosen at + compile time (usually 'less'). ++ +When the `LESS` environment variable is unset, Git sets it to `FRX` +(if `LESS` environment variable is set, Git does not change it at +all). If you want to selectively override Git's default setting +for `LESS`, you can set `core.pager` to e.g. `less -S`. This will +be passed to the shell by Git, which will translate the final +command to `LESS=FRX less -S`. The environment does not set the +`S` option but the command line does, instructing less to truncate +long lines. Similarly, setting `core.pager` to `less -+F` will +deactivate the `F` option specified by the environment from the +command-line, deactivating the "quit if one screen" behavior of +`less`. One can specifically activate some flags for particular +commands: for example, setting `pager.blame` to `less -S` enables +line truncation only for `git blame`. ++ +Likewise, when the `LV` environment variable is unset, Git sets it +to `-c`. You can override this setting by exporting `LV` with +another value or setting `core.pager` to `lv +c`. core.whitespace:: A comma separated list of common whitespace problems to @@ -599,7 +690,7 @@ core.whitespace:: is relevant for `indent-with-non-tab` and when Git fixes `tab-in-indent` errors. The default tab width is 8. Allowed values are 1 to 63. -core.fsyncobjectfiles:: +core.fsyncObjectFiles:: This boolean will enable 'fsync()' when writing object files. + This is a total waste of time and effort on a filesystem that orders @@ -607,14 +698,14 @@ data writes properly, but can be useful for filesystems that do not use journalling (traditional UNIX filesystems) or that only journal metadata and not file contents (OS X's HFS+, or Linux ext3 with "data=writeback"). -core.preloadindex:: +core.preloadIndex:: Enable parallel index preload for operations like 'git diff' + This can speed up operations like 'git diff' and 'git status' especially on filesystems like NFS that have weak caching semantics and thus -relatively high IO latencies. With this set to 'true', Git will do the +relatively high IO latencies. When enabled, Git will do the index comparison to the filesystem data in parallel, allowing -overlapping IO's. +overlapping IO's. Defaults to true. core.createObject:: You can set this to 'link', in which case a hardlink followed by @@ -644,14 +735,13 @@ core.abbrev:: for abbreviated object names to stay unique for sufficiently long time. -add.ignore-errors:: add.ignoreErrors:: +add.ignore-errors (deprecated):: Tells 'git add' to continue adding files when some files cannot be added due to indexing errors. Equivalent to the '--ignore-errors' - option of linkgit:git-add[1]. Older versions of Git accept only - `add.ignore-errors`, which does not follow the usual naming - convention for configuration variables. Newer versions of Git - honor `add.ignoreErrors` as well. + option of linkgit:git-add[1]. `add.ignore-errors` is deprecated, + as it does not follow the usual naming convention for configuration + variables. alias.*:: Command aliases for the linkgit:git[1] command wrapper - e.g. @@ -660,7 +750,7 @@ alias.*:: confusion and troubles with script usage, aliases that hide existing Git commands are ignored. Arguments are split by spaces, the usual shell quoting and escaping is supported. - quote pair and a backslash can be used to quote them. + A quote pair or a backslash can be used to quote them. + If the alias expansion is prefixed with an exclamation point, it will be treated as a shell command. For example, defining @@ -679,7 +769,15 @@ am.keepcr:: by giving '--no-keep-cr' from the command line. See linkgit:git-am[1], linkgit:git-mailsplit[1]. -apply.ignorewhitespace:: +am.threeWay:: + By default, `git am` will fail if the patch does not apply cleanly. When + set to true, this setting tells `git am` to fall back on 3-way merge if + the patch records the identity of blobs it is supposed to apply to and + we have those blobs available locally (equivalent to giving the `--3way` + option from the command line). Defaults to `false`. + See linkgit:git-am[1]. + +apply.ignoreWhitespace:: When set to 'change', tells 'git apply' to ignore changes in whitespace, in the same way as the '--ignore-space-change' option. @@ -691,7 +789,7 @@ apply.whitespace:: Tells 'git apply' how to handle whitespaces, in the same way as the '--whitespace' option. See linkgit:git-apply[1]. -branch.autosetupmerge:: +branch.autoSetupMerge:: Tells 'git branch' and 'git checkout' to set up new branches so that linkgit:git-pull[1] will appropriately merge from the starting point branch. Note that even if this option is not set, @@ -703,7 +801,7 @@ branch.autosetupmerge:: local branch or remote-tracking branch. This option defaults to true. -branch.autosetuprebase:: +branch.autoSetupRebase:: When a new branch is created with 'git branch' or 'git checkout' that tracks another branch, this variable tells Git to set up pull to rebase instead of merge (see "branch.<name>.rebase"). @@ -714,25 +812,27 @@ branch.autosetuprebase:: remote-tracking branches. When `always`, rebase will be set to true for all tracking branches. - See "branch.autosetupmerge" for details on how to set up a + See "branch.autoSetupMerge" for details on how to set up a branch to track another branch. This option defaults to never. branch.<name>.remote:: When on branch <name>, it tells 'git fetch' and 'git push' which remote to fetch from/push to. The remote to push to - may be overridden with `remote.pushdefault` (for all branches). + may be overridden with `remote.pushDefault` (for all branches). The remote to push to, for the current branch, may be further - overridden by `branch.<name>.pushremote`. If no remote is + overridden by `branch.<name>.pushRemote`. If no remote is configured, or if you are not on any branch, it defaults to - `origin` for fetching and `remote.pushdefault` for pushing. + `origin` for fetching and `remote.pushDefault` for pushing. + Additionally, `.` (a period) is the current local repository + (a dot-repository), see `branch.<name>.merge`'s final note below. -branch.<name>.pushremote:: +branch.<name>.pushRemote:: When on branch <name>, it overrides `branch.<name>.remote` for - pushing. It also overrides `remote.pushdefault` for pushing + pushing. It also overrides `remote.pushDefault` for pushing from branch <name>. When you pull from one place (e.g. your upstream) and push to another place (e.g. your own publishing - repository), you would want to set `remote.pushdefault` to + repository), you would want to set `remote.pushDefault` to specify the remote to push to for all branches, and use this option to override it for a specific branch. @@ -751,10 +851,10 @@ branch.<name>.merge:: Specify multiple values to get an octopus merge. If you wish to setup 'git pull' so that it merges into <name> from another branch in the local repository, you can point - branch.<name>.merge to the desired branch, and use the special setting - `.` (a period) for branch.<name>.remote. + branch.<name>.merge to the desired branch, and use the relative path + setting `.` (a period) for branch.<name>.remote. -branch.<name>.mergeoptions:: +branch.<name>.mergeOptions:: Sets default options for merging into branch <name>. The syntax and supported options are the same as those of linkgit:git-merge[1], but option values containing whitespace characters are currently not @@ -766,6 +866,10 @@ branch.<name>.rebase:: "git pull" is run. See "pull.rebase" for doing this in a non branch-specific manner. + + When preserve, also pass `--preserve-merges` along to 'git rebase' + so that locally committed merge commits will not be flattened + by running 'git pull'. ++ *NOTE*: this is a possibly dangerous operation; do *not* use it unless you understand the implications (see linkgit:git-rebase[1] for details). @@ -787,8 +891,8 @@ browser.<tool>.path:: working repository in gitweb (see linkgit:git-instaweb[1]). clean.requireForce:: - A boolean to make git-clean do nothing unless given -f - or -n. Defaults to true. + A boolean to make git-clean do nothing unless given -f, + -i or -n. Defaults to true. color.branch:: A boolean to enable/disable color in the output of @@ -802,14 +906,6 @@ color.branch.<slot>:: `remote` (a remote-tracking branch in refs/remotes/), `upstream` (upstream tracking branch), `plain` (other refs). -+ -The value for these configuration variables is a list of colors (at most -two) and attributes (at most one), separated by spaces. The colors -accepted are `normal`, `black`, `red`, `green`, `yellow`, `blue`, -`magenta`, `cyan` and `white`; the attributes are `bold`, `dim`, `ul`, -`blink` and `reverse`. The first color given is the foreground; the -second is the background. The position of the attribute, if any, -doesn't matter. color.diff:: Whether to use ANSI escape sequences to add color to patches. @@ -819,18 +915,18 @@ color.diff:: commands will only use color when output is to the terminal. Defaults to false. + -This does not affect linkgit:git-format-patch[1] nor the +This does not affect linkgit:git-format-patch[1] or the 'git-diff-{asterisk}' plumbing commands. Can be overridden on the command line with the `--color[=<when>]` option. color.diff.<slot>:: Use customized color for diff colorization. `<slot>` specifies which part of the patch to use the specified color, and is one - of `plain` (context text), `meta` (metainformation), `frag` + of `context` (context text - `plain` is a historical synonym), + `meta` (metainformation), `frag` (hunk header), 'func' (function in hunk header), `old` (removed lines), `new` (added lines), `commit` (commit headers), or `whitespace` - (highlighting whitespace errors). The values of these variables may be - specified as in color.branch.<slot>. + (highlighting whitespace errors). color.decorate.<slot>:: Use customized color for 'git log --decorate' output. `<slot>` is one @@ -856,15 +952,17 @@ color.grep.<slot>:: `linenumber`;; line number prefix (when using `-n`) `match`;; - matching text + matching text (same as setting `matchContext` and `matchSelected`) +`matchContext`;; + matching text in context lines +`matchSelected`;; + matching text in selected lines `selected`;; non-matching text in selected lines `separator`;; separators between fields on a line (`:`, `-`, and `=`) and between hunks (`--`) -- -+ -The values of these variables may be specified as in color.branch.<slot>. color.interactive:: When set to `always`, always use colors for interactive prompts @@ -877,14 +975,13 @@ color.interactive.<slot>:: Use customized color for 'git add --interactive' and 'git clean --interactive' output. `<slot>` may be `prompt`, `header`, `help` or `error`, for four distinct types of normal output from - interactive commands. The values of these variables may be - specified as in color.branch.<slot>. + interactive commands. color.pager:: A boolean to enable/disable colored output when the pager is in use (default is true). -color.showbranch:: +color.showBranch:: A boolean to enable/disable color in the output of linkgit:git-show-branch[1]. May be set to `always`, `false` (or `never`) or `auto` (or `true`), in which case colors are used @@ -902,10 +999,10 @@ color.status.<slot>:: `added` or `updated` (files which are added but not committed), `changed` (files which are changed but not added in the index), `untracked` (files which are not tracked by Git), - `branch` (the current branch), or + `branch` (the current branch), `nobranch` (the color the 'no branch' warning is shown in, defaulting - to red). The values of these variables may be specified as in - color.branch.<slot>. + to red), or + `unmerged` (files which have unmerged changes). color.ui:: This variable determines the default value for variables such @@ -984,6 +1081,14 @@ commit.cleanup:: have to remove the help lines that begin with `#` in the commit log template yourself, if you do this). +commit.gpgSign:: + + A boolean to specify whether all commits should be GPG signed. + Use of this option when doing operations such as rebase can + result in a large number of commits being signed. It may be + convenient to use an agent to avoid typing your GPG passphrase + several times. + commit.status:: A boolean to enable/disable inclusion of status information in the commit message template when using an editor to prepare the commit @@ -1061,6 +1166,10 @@ fetch.unpackLimit:: especially on slow filesystems. If not set, the value of `transfer.unpackLimit` is used instead. +fetch.prune:: + If true, fetch will automatically behave as if the `--prune` + option was given on the command line. See also `remote.<name>.prune`. + format.attach:: Enable multipart/mixed attachments as the default for 'format-patch'. The value can also be a double quoted string @@ -1085,7 +1194,7 @@ format.cc:: by mail. See the --to and --cc options in linkgit:git-format-patch[1]. -format.subjectprefix:: +format.subjectPrefix:: The default for format-patch is to output files with the '[PATCH]' subject prefix. Use this variable to change that prefix. @@ -1095,6 +1204,10 @@ format.signature:: Set this variable to the empty string ("") to suppress signature generation. +format.signatureFile:: + Works just like format.signature except the contents of the + file specified by this variable will be used as the signature. + format.suffix:: The default for format-patch is to output files with the suffix `.patch`. Use this variable to change that suffix (make sure to @@ -1115,7 +1228,7 @@ format.thread:: A true boolean value is the same as `shallow`, and a false value disables threading. -format.signoff:: +format.signOff:: A boolean value which lets you enable the `-s/--signoff` option of format-patch by default. *Note:* Adding the Signed-off-by: line to a patch should be a conscious act and means that you certify you have @@ -1137,6 +1250,30 @@ filter.<driver>.smudge:: object to a worktree file upon checkout. See linkgit:gitattributes[5] for details. +fsck.<msg-id>:: + Allows overriding the message type (error, warn or ignore) of a + specific message ID such as `missingEmail`. ++ +For convenience, fsck prefixes the error/warning with the message ID, +e.g. "missingEmail: invalid author/committer line - missing email" means +that setting `fsck.missingEmail = ignore` will hide that issue. ++ +This feature is intended to support working with legacy repositories +which cannot be repaired without disruptive changes. + +fsck.skipList:: + The path to a sorted list of object names (i.e. one SHA-1 per + line) that are known to be broken in a non-fatal way and should + be ignored. This feature is useful when an established project + should be accepted despite early commits containing errors that + can be safely ignored such as invalid committer email addresses. + Note: corrupt objects cannot be skipped with this setting. + +gc.aggressiveDepth:: + The depth parameter used in the delta compression + algorithm used by 'git gc --aggressive'. This defaults + to 250. + gc.aggressiveWindow:: The window size parameter used in the delta compression algorithm used by 'git gc --aggressive'. This defaults @@ -1149,13 +1286,17 @@ gc.auto:: light-weight garbage collection from time to time. The default value is 6700. Setting this to 0 disables it. -gc.autopacklimit:: +gc.autoPackLimit:: When there are more than this many packs that are not marked with `*.keep` file in the repository, `git gc --auto` consolidates them into one larger pack. The default value is 50. Setting this to 0 disables it. -gc.packrefs:: +gc.autoDetach:: + Make `git gc --auto` return immediately and run in background + if the system supports it. Default is true. + +gc.packRefs:: Running `git pack-refs` in a repository renders it unclonable by Git versions prior to 1.5.1.2 over dumb transports such as HTTP. This variable determines whether @@ -1163,38 +1304,51 @@ gc.packrefs:: to enable it within all non-bare repos or it can be set to a boolean value. The default is `true`. -gc.pruneexpire:: +gc.pruneExpire:: When 'git gc' is run, it will call 'prune --expire 2.weeks.ago'. Override the grace period with this config variable. The value - "now" may be used to disable this grace period and always prune - unreachable objects immediately. - -gc.reflogexpire:: -gc.<pattern>.reflogexpire:: + "now" may be used to disable this grace period and always prune + unreachable objects immediately, or "never" may be used to + suppress pruning. + +gc.worktreePruneExpire:: + When 'git gc' is run, it calls + 'git worktree prune --expire 3.months.ago'. + This config variable can be used to set a different grace + period. The value "now" may be used to disable the grace + period and prune $GIT_DIR/worktrees immediately, or "never" + may be used to suppress pruning. + +gc.reflogExpire:: +gc.<pattern>.reflogExpire:: 'git reflog expire' removes reflog entries older than - this time; defaults to 90 days. With "<pattern>" (e.g. + this time; defaults to 90 days. The value "now" expires all + entries immediately, and "never" suppresses expiration + altogether. With "<pattern>" (e.g. "refs/stash") in the middle the setting applies only to the refs that match the <pattern>. -gc.reflogexpireunreachable:: -gc.<ref>.reflogexpireunreachable:: +gc.reflogExpireUnreachable:: +gc.<pattern>.reflogExpireUnreachable:: 'git reflog expire' removes reflog entries older than this time and are not reachable from the current tip; - defaults to 30 days. With "<pattern>" (e.g. "refs/stash") + defaults to 30 days. The value "now" expires all entries + immediately, and "never" suppresses expiration altogether. + With "<pattern>" (e.g. "refs/stash") in the middle, the setting applies only to the refs that match the <pattern>. -gc.rerereresolved:: +gc.rerereResolved:: Records of conflicted merge you resolved earlier are kept for this many days when 'git rerere gc' is run. The default is 60 days. See linkgit:git-rerere[1]. -gc.rerereunresolved:: +gc.rerereUnresolved:: Records of conflicted merge you have not resolved are kept for this many days when 'git rerere gc' is run. The default is 15 days. See linkgit:git-rerere[1]. -gitcvs.commitmsgannotation:: +gitcvs.commitMsgAnnotation:: Append this string to each commit message. Set to empty string to disable this feature. Defaults to "via git-CVS emulator". @@ -1202,7 +1356,7 @@ gitcvs.enabled:: Whether the CVS server interface is enabled for this repository. See linkgit:git-cvsserver[1]. -gitcvs.logfile:: +gitcvs.logFile:: Path to a log file where the CVS server interface well... logs various stuff. See linkgit:git-cvsserver[1]. @@ -1214,10 +1368,10 @@ gitcvs.usecrlfattr:: treat it as text. If they suppress text conversion, the file will be set with '-kb' mode, which suppresses any newline munging the client might otherwise do. If the attributes do not allow - the file type to be determined, then 'gitcvs.allbinary' is + the file type to be determined, then 'gitcvs.allBinary' is used. See linkgit:gitattributes[5]. -gitcvs.allbinary:: +gitcvs.allBinary:: This is used if 'gitcvs.usecrlfattr' does not resolve the correct '-kb' mode to use. If true, all unresolved files are sent to the client in @@ -1227,7 +1381,7 @@ gitcvs.allbinary:: then the contents of the file are examined to decide if it is binary, similar to 'core.autocrlf'. -gitcvs.dbname:: +gitcvs.dbName:: Database used by git-cvsserver to cache revision information derived from the Git repository. The exact meaning depends on the used database driver, for SQLite (which is the default driver) this @@ -1235,7 +1389,7 @@ gitcvs.dbname:: linkgit:git-cvsserver[1] for details). May not contain semicolons (`;`). Default: '%Ggitcvs.%m.sqlite' -gitcvs.dbdriver:: +gitcvs.dbDriver:: Used Perl DBI driver. You can specify any available driver for this here, but it might not work. git-cvsserver is tested with 'DBD::SQLite', reported to work with 'DBD::Pg', and @@ -1243,10 +1397,10 @@ gitcvs.dbdriver:: May not contain double colons (`:`). Default: 'SQLite'. See linkgit:git-cvsserver[1]. -gitcvs.dbuser, gitcvs.dbpass:: - Database user and password. Only useful if setting 'gitcvs.dbdriver', +gitcvs.dbUser, gitcvs.dbPass:: + Database user and password. Only useful if setting 'gitcvs.dbDriver', since SQLite has no concept of database users and/or passwords. - 'gitcvs.dbuser' supports variable substitution (see + 'gitcvs.dbUser' supports variable substitution (see linkgit:git-cvsserver[1] for details). gitcvs.dbTableNamePrefix:: @@ -1257,7 +1411,7 @@ gitcvs.dbTableNamePrefix:: characters will be replaced with underscores. All gitcvs variables except for 'gitcvs.usecrlfattr' and -'gitcvs.allbinary' can also be specified as +'gitcvs.allBinary' can also be specified as 'gitcvs.<access_method>.<varname>' (where 'access_method' is one of "ext" and "pserver") to make them apply only for the given access method. @@ -1275,7 +1429,7 @@ gitweb.highlight:: gitweb.patches:: gitweb.pickaxe:: gitweb.remote_heads:: -gitweb.showsizes:: +gitweb.showSizes:: gitweb.snapshot:: See linkgit:gitweb.conf[5] for description. @@ -1296,22 +1450,26 @@ grep.extendedRegexp:: gpg.program:: Use this custom program instead of "gpg" found on $PATH when making or verifying a PGP signature. The program must support the - same command line interface as GPG, namely, to verify a detached + same command-line interface as GPG, namely, to verify a detached signature, "gpg --verify $file - <$signature" is run, and the program is expected to signal a good signature by exiting with - code 0, and to generate an ascii-armored detached signature, the + code 0, and to generate an ASCII-armored detached signature, the standard input of "gpg -bsau $key" is fed with the contents to be signed, and the program is expected to send the result to its standard output. -gui.commitmsgwidth:: +gui.commitMsgWidth:: Defines how wide the commit message window is in the linkgit:git-gui[1]. "75" is the default. -gui.diffcontext:: +gui.diffContext:: Specifies how many context lines should be used in calls to diff made by the linkgit:git-gui[1]. The default is "5". +gui.displayUntracked:: + Determines if linkgit::git-gui[1] shows untracked files + in the file list. The default is "true". + gui.encoding:: Specifies the default encoding to use for displaying of file contents in linkgit:git-gui[1] and linkgit:gitk[1]. @@ -1320,16 +1478,16 @@ gui.encoding:: If this option is not set, the tools default to the locale encoding. -gui.matchtrackingbranch:: +gui.matchTrackingBranch:: Determines if new branches created with linkgit:git-gui[1] should default to tracking remote branches with matching names or not. Default: "false". -gui.newbranchtemplate:: +gui.newBranchTemplate:: Is used as suggested name when creating new branches using the linkgit:git-gui[1]. -gui.pruneduringfetch:: +gui.pruneDuringFetch:: "true" if linkgit:git-gui[1] should prune remote-tracking branches when performing a fetch. The default value is "false". @@ -1337,17 +1495,17 @@ gui.trustmtime:: Determines if linkgit:git-gui[1] should trust the file modification timestamp or not. By default the timestamps are not trusted. -gui.spellingdictionary:: +gui.spellingDictionary:: Specifies the dictionary used for spell checking commit messages in the linkgit:git-gui[1]. When set to "none" spell checking is turned off. -gui.fastcopyblame:: +gui.fastCopyBlame:: If true, 'git gui blame' uses `-C` instead of `-C -C` for original location detection. It makes blame significantly faster on huge repositories at the expense of less thorough copy detection. -gui.copyblamethreshold:: +gui.copyBlameThreshold:: Specifies the threshold to use in 'git gui blame' original location detection, measured in alphanumeric characters. See the linkgit:git-blame[1] manual for more information on copy detection. @@ -1367,22 +1525,22 @@ guitool.<name>.cmd:: 'FILENAME', and the name of the current branch as 'CUR_BRANCH' (if the head is detached, 'CUR_BRANCH' is empty). -guitool.<name>.needsfile:: +guitool.<name>.needsFile:: Run the tool only if a diff is selected in the GUI. It guarantees that 'FILENAME' is not empty. -guitool.<name>.noconsole:: +guitool.<name>.noConsole:: Run the command silently, without creating a window to display its output. -guitool.<name>.norescan:: +guitool.<name>.noRescan:: Don't rescan the working directory for changes after the tool finishes execution. guitool.<name>.confirm:: Show a confirmation dialog before actually running the tool. -guitool.<name>.argprompt:: +guitool.<name>.argPrompt:: Request a string argument from the user, and pass it to the tool through the 'ARGS' environment variable. Since requesting an argument implies confirmation, the 'confirm' option has no effect @@ -1390,13 +1548,13 @@ guitool.<name>.argprompt:: the dialog uses a built-in generic prompt; otherwise the exact value of the variable is used. -guitool.<name>.revprompt:: +guitool.<name>.revPrompt:: Request a single valid revision from the user, and set the 'REVISION' environment variable. In other aspects this option - is similar to 'argprompt', and can be used together with it. + is similar to 'argPrompt', and can be used together with it. -guitool.<name>.revunmerged:: - Show only unmerged branches in the 'revprompt' subdialog. +guitool.<name>.revUnmerged:: + Show only unmerged branches in the 'revPrompt' subdialog. This is useful for tools similar to merge or rebase, but not for things like checkout or reset. @@ -1406,7 +1564,7 @@ guitool.<name>.title:: guitool.<name>.prompt:: Specifies the general prompt string to display at the top of - the dialog, before subsections for 'argprompt' and 'revprompt'. + the dialog, before subsections for 'argPrompt' and 'revPrompt'. The default value includes the actual command. help.browser:: @@ -1418,7 +1576,7 @@ help.format:: Values 'man', 'info', 'web' and 'html' are supported. 'man' is the default. 'web' and 'html' are the same. -help.autocorrect:: +help.autoCorrect:: Automatically correct and execute mistyped commands after waiting for the given number of deciseconds (0.1 sec). If more than one command can be deduced from the entered text, nothing @@ -1427,7 +1585,7 @@ help.autocorrect:: value is 0 - the command will be just shown but not executed. This is the default. -help.htmlpath:: +help.htmlPath:: Specify the path where the HTML documentation resides. File system paths and URLs are supported. HTML pages will be prefixed with this path when help is displayed in the 'web' format. This defaults to the documentation @@ -1439,13 +1597,53 @@ http.proxy:: `curl(1)`). This can be overridden on a per-remote basis; see remote.<name>.proxy -http.cookiefile:: +http.cookieFile:: File containing previously stored cookie lines which should be used in the Git http session, if they match the server. The file format of the file to read cookies from should be plain HTTP headers or the Netscape/Mozilla cookie file format (see linkgit:curl[1]). - NOTE that the file specified with http.cookiefile is only used as - input. No cookies will be stored in the file. + NOTE that the file specified with http.cookieFile is only used as + input unless http.saveCookies is set. + +http.saveCookies:: + If set, store cookies received during requests to the file specified by + http.cookieFile. Has no effect if http.cookieFile is unset. + +http.sslVersion:: + The SSL version to use when negotiating an SSL connection, if you + want to force the default. The available and default version + depend on whether libcurl was built against NSS or OpenSSL and the + particular configuration of the crypto library in use. Internally + this sets the 'CURLOPT_SSL_VERSION' option; see the libcurl + documentation for more details on the format of this option and + for the ssl version supported. Actually the possible values of + this option are: + + - sslv2 + - sslv3 + - tlsv1 + - tlsv1.0 + - tlsv1.1 + - tlsv1.2 + ++ +Can be overridden by the 'GIT_SSL_VERSION' environment variable. +To force git to use libcurl's default ssl version and ignore any +explicit http.sslversion option, set 'GIT_SSL_VERSION' to the +empty string. + +http.sslCipherList:: + A list of SSL ciphers to use when negotiating an SSL connection. + The available ciphers depend on whether libcurl was built against + NSS or OpenSSL and the particular configuration of the crypto + library in use. Internally this sets the 'CURLOPT_SSL_CIPHER_LIST' + option; see the libcurl documentation for more details on the format + of this list. ++ +Can be overridden by the 'GIT_SSL_CIPHER_LIST' environment variable. +To force git to use libcurl's default cipher list and ignore any +explicit http.sslCipherList option, set 'GIT_SSL_CIPHER_LIST' to the +empty string. http.sslVerify:: Whether to verify the SSL certificate when fetching or pushing @@ -1516,7 +1714,7 @@ http.noEPSV:: support EPSV mode. Can be overridden by the 'GIT_CURL_FTP_NO_EPSV' environment variable. Default is false (curl will use EPSV). -http.useragent:: +http.userAgent:: The HTTP USER_AGENT string presented to an HTTP server. The default value represents the version of the client Git such as git/1.7.1. This option allows you to override this value to a more common value @@ -1525,6 +1723,51 @@ http.useragent:: of common USER_AGENT strings (but not including those like git/1.7.1). Can be overridden by the 'GIT_HTTP_USER_AGENT' environment variable. +http.<url>.*:: + Any of the http.* options above can be applied selectively to some URLs. + For a config key to match a URL, each element of the config key is + compared to that of the URL, in the following order: ++ +-- +. Scheme (e.g., `https` in `https://example.com/`). This field + must match exactly between the config key and the URL. + +. Host/domain name (e.g., `example.com` in `https://example.com/`). + This field must match exactly between the config key and the URL. + +. Port number (e.g., `8080` in `http://example.com:8080/`). + This field must match exactly between the config key and the URL. + Omitted port numbers are automatically converted to the correct + default for the scheme before matching. + +. Path (e.g., `repo.git` in `https://example.com/repo.git`). The + path field of the config key must match the path field of the URL + either exactly or as a prefix of slash-delimited path elements. This means + a config key with path `foo/` matches URL path `foo/bar`. A prefix can only + match on a slash (`/`) boundary. Longer matches take precedence (so a config + key with path `foo/bar` is a better match to URL path `foo/bar` than a config + key with just path `foo/`). + +. User name (e.g., `user` in `https://user@example.com/repo.git`). If + the config key has a user name it must match the user name in the + URL exactly. If the config key does not have a user name, that + config key will match a URL with any user name (including none), + but at a lower precedence than a config key with a user name. +-- ++ +The list above is ordered by decreasing precedence; a URL that matches +a config key's path is preferred to one that matches its user name. For example, +if the URL is `https://user@example.com/foo/bar` a config key match of +`https://example.com/foo` will be preferred over a config key match of +`https://user@example.com`. ++ +All URLs are normalized before attempting any matching (the password part, +if embedded in the URL, is always ignored for matching purposes) so that +equivalent URLs that are simply spelled differently will match properly. +Environment variable settings always override any matches. The URLs that are +matched against are those given directly to Git commands. This means any URLs +visited as a result of a redirection do not participate in matching. + i18n.commitEncoding:: Character encoding the commit messages are stored in; Git itself does not care per se, but this information is necessary e.g. when @@ -1540,7 +1783,11 @@ imap:: The configuration variables in the 'imap' section are described in linkgit:git-imap-send[1]. -init.templatedir:: +index.version:: + Specify the version with which new index files should be + initialized. This does not affect existing repositories. + +init.templateDir:: Specify the directory from which templates will be copied. (See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].) @@ -1556,7 +1803,7 @@ instaweb.local:: If true the web server started by linkgit:git-instaweb[1] will be bound to the local IP (127.0.0.1). -instaweb.modulepath:: +instaweb.modulePath:: The default module path for linkgit:git-instaweb[1] to use instead of /usr/lib/apache2/modules. Only used if httpd is Apache. @@ -1565,14 +1812,14 @@ instaweb.port:: The port number to bind the gitweb httpd to. See linkgit:git-instaweb[1]. -interactive.singlekey:: +interactive.singleKey:: In interactive commands, allow the user to provide one-letter input with a single key (i.e., without hitting enter). Currently this is used by the `--patch` mode of linkgit:git-add[1], linkgit:git-checkout[1], linkgit:git-commit[1], linkgit:git-reset[1], and linkgit:git-stash[1]. Note that this setting is silently ignored if portable keystroke input - is not available. + is not available; requires the Perl module Term::ReadKey. log.abbrevCommit:: If true, makes linkgit:git-log[1], linkgit:git-show[1], and @@ -1593,7 +1840,7 @@ log.decorate:: specified, the full ref name (including prefix) will be printed. This is the same as the log commands '--decorate' option. -log.showroot:: +log.showRoot:: If true, the initial commit will be shown as a big creation event. This is equivalent to a diff against an empty tree. Tools like linkgit:git-log[1] or linkgit:git-whatchanged[1], which @@ -1603,6 +1850,13 @@ log.mailmap:: If true, makes linkgit:git-log[1], linkgit:git-show[1], and linkgit:git-whatchanged[1] assume `--use-mailmap`. +mailinfo.scissors:: + If true, makes linkgit:git-mailinfo[1] (and therefore + linkgit:git-am[1]) act by default as if the --scissors option + was provided on the command-line. When active, this features + removes everything from the message body before a scissors + line (i.e. consisting mainly of ">8", "8<" and "-"). + mailmap.file:: The location of an augmenting mailmap file. The default mailmap, located in the root of the repository, is loaded @@ -1657,6 +1911,15 @@ mergetool.<tool>.trustExitCode:: if the file has been updated, otherwise the user is prompted to indicate the success of the merge. +mergetool.meld.hasOutput:: + Older versions of `meld` do not support the `--output` option. + Git will attempt to detect whether `meld` supports `--output` + by inspecting the output of `meld --help`. Configuring + `mergetool.meld.hasOutput` will make Git skip these checks and + use the configured value instead. Setting `mergetool.meld.hasOutput` + to `true` tells Git to unconditionally use the `--output` option, + and `false` avoids using `--output`. + mergetool.keepBackup:: After performing a merge, the original file with conflict markers can be saved as a file with a `.orig` extension. If this variable @@ -1670,9 +1933,27 @@ mergetool.keepTemporaries:: preserved, otherwise they will be removed after the tool has exited. Defaults to `false`. +mergetool.writeToTemp:: + Git writes temporary 'BASE', 'LOCAL', and 'REMOTE' versions of + conflicting files in the worktree by default. Git will attempt + to use a temporary directory for these files when set `true`. + Defaults to `false`. + mergetool.prompt:: Prompt before each invocation of the merge resolution program. +notes.mergeStrategy:: + Which merge strategy to choose by default when resolving notes + conflicts. Must be one of `manual`, `ours`, `theirs`, `union`, or + `cat_sort_uniq`. Defaults to `manual`. See "NOTES MERGE STRATEGIES" + section of linkgit:git-notes[1] for more information on each strategy. + +notes.<name>.mergeStrategy:: + Which merge strategy to choose when doing a notes merge into + refs/notes/<name>. This overrides the more general + "notes.mergeStrategy". See the "NOTES MERGE STRATEGIES" section in + linkgit:git-notes[1] for more information on the available strategies. + notes.displayRef:: The (fully qualified) refname from which to show notes when showing commit messages. The value of this variable can be set @@ -1701,8 +1982,8 @@ notes.rewriteMode:: When copying notes during a rewrite (see the "notes.rewrite.<command>" option), determines what to do if the target commit already has a note. Must be one of - `overwrite`, `concatenate`, or `ignore`. Defaults to - `concatenate`. + `overwrite`, `concatenate`, `cat_sort_uniq`, or `ignore`. + Defaults to `concatenate`. + This setting can be overridden with the `GIT_NOTES_REWRITE_MODE` environment variable. @@ -1730,10 +2011,11 @@ pack.depth:: maximum depth is given on the command line. Defaults to 50. pack.windowMemory:: - The window memory size limit used by linkgit:git-pack-objects[1] - when no limit is given on the command line. The value can be - suffixed with "k", "m", or "g". Defaults to 0, meaning no - limit. + The maximum size of memory that is consumed by each thread + in linkgit:git-pack-objects[1] for pack window memory when + no limit is given on the command line. The value can be + suffixed with "k", "m", or "g". When left unconfigured (or + set explicitly to 0), there will be no limit. pack.compression:: An integer -1..9, indicating the compression level for objects @@ -1801,6 +2083,26 @@ pack.packSizeLimit:: Common unit suffixes of 'k', 'm', or 'g' are supported. +pack.useBitmaps:: + When true, git will use pack bitmaps (if available) when packing + to stdout (e.g., during the server side of a fetch). Defaults to + true. You should not generally need to turn this off unless + you are debugging pack bitmaps. + +pack.writeBitmaps (deprecated):: + This is a deprecated synonym for `repack.writeBitmaps`. + +pack.writeBitmapHashCache:: + When true, git will include a "hash cache" section in the bitmap + index (if one is written). This cache can be used to feed git's + delta heuristics, potentially leading to better deltas between + bitmapped and non-bitmapped objects (e.g., when serving a fetch + between an older, bitmapped pack and objects that have been + pushed since the last gc). The downside is that it consumes 4 + bytes per object of disk space, and that JGit's bitmap + implementation does not understand it, causing it to complain if + Git and JGit are used on the same repository. Defaults to false. + pager.<cmd>:: If the value is boolean, turns on or off pagination of the output of a particular Git subcommand when writing to a tty. @@ -1820,12 +2122,26 @@ pretty.<name>:: Note that an alias with the same name as a built-in format will be silently ignored. +pull.ff:: + By default, Git does not create an extra merge commit when merging + a commit that is a descendant of the current commit. Instead, the + tip of the current branch is fast-forwarded. When set to `false`, + this variable tells Git to create an extra merge commit in such + a case (equivalent to giving the `--no-ff` option from the command + line). When set to `only`, only such fast-forward merges are + allowed (equivalent to giving the `--ff-only` option from the + command line). This setting overrides `merge.ff` when pulling. + pull.rebase:: When true, rebase branches on top of the fetched branch, instead of merging the default branch from the default remote when "git pull" is run. See "branch.<name>.rebase" for setting this on a per-branch basis. + + When preserve, also pass `--preserve-merges` along to 'git rebase' + so that locally committed merge commits will not be flattened + by running 'git pull'. ++ *NOTE*: this is a possibly dangerous operation; do *not* use it unless you understand the implications (see linkgit:git-rebase[1] for details). @@ -1868,7 +2184,7 @@ When pushing to a remote that is different from the remote you normally pull from, work as `current`. This is the safest option and is suited for beginners. + -This mode will become the default in Git 2.0. +This mode has become the default in Git 2.0. * `matching` - push all branches having the same name on both ends. This makes the repository you are pushing to remember the set of @@ -1887,19 +2203,33 @@ suitable for pushing into a shared central repository, as other people may add new branches there, or update the tip of existing branches outside your control. + -This is currently the default, but Git 2.0 will change the default -to `simple`. +This used to be the default, but not since Git 2.0 (`simple` is the +new default). -- +push.followTags:: + If set to true enable '--follow-tags' option by default. You + may override this configuration at time of push by specifying + '--no-follow-tags'. + +push.gpgSign:: + May be set to a boolean value, or the string 'if-asked'. A true + value causes all pushes to be GPG signed, as if '--signed' is + passed to linkgit:git-push[1]. The string 'if-asked' causes + pushes to be signed if the server supports it, as if + '--signed=if-asked' is passed to 'git push'. A false value may + override a value from a lower-priority config file. An explicit + command-line flag always overrides this config option. + rebase.stat:: Whether to show a diffstat of what changed upstream since the last rebase. False by default. -rebase.autosquash:: +rebase.autoSquash:: If set to true enable '--autosquash' option by default. -rebase.autostash:: +rebase.autoStash:: When set to true, automatically create a temporary stash before the operation begins, and apply it after the operation ends. This means that you can run rebase on a dirty worktree. @@ -1907,11 +2237,51 @@ rebase.autostash:: successful rebase might result in non-trivial conflicts. Defaults to false. +rebase.missingCommitsCheck:: + If set to "warn", git rebase -i will print a warning if some + commits are removed (e.g. a line was deleted), however the + rebase will still proceed. If set to "error", it will print + the previous warning and stop the rebase, 'git rebase + --edit-todo' can then be used to correct the error. If set to + "ignore", no checking is done. + To drop a commit without warning or error, use the `drop` + command in the todo-list. + Defaults to "ignore". + +rebase.instructionFormat + A format string, as specified in linkgit:git-log[1], to be used for + the instruction list during an interactive rebase. The format will automatically + have the long commit hash prepended to the format. + +receive.advertiseAtomic:: + By default, git-receive-pack will advertise the atomic push + capability to its clients. If you don't want to this capability + to be advertised, set this variable to false. + receive.autogc:: By default, git-receive-pack will run "git-gc --auto" after receiving data from git-push and updating refs. You can stop it by setting this variable to false. +receive.certNonceSeed:: + By setting this variable to a string, `git receive-pack` + will accept a `git push --signed` and verifies it by using + a "nonce" protected by HMAC using this string as a secret + key. + +receive.certNonceSlop:: + When a `git push --signed` sent a push certificate with a + "nonce" that was issued by a receive-pack serving the same + repository within this many seconds, export the "nonce" + found in the certificate to `GIT_PUSH_CERT_NONCE` to the + hooks (instead of what the receive-pack asked the sending + side to include). This may allow writing checks in + `pre-receive` and `post-receive` a bit easier. Instead of + checking `GIT_PUSH_CERT_NONCE_SLOP` environment variable + that records by how many seconds the nonce is stale to + decide if they want to accept the certificate, they only + can check `GIT_PUSH_CERT_NONCE_STATUS` is `OK`. + receive.fsckObjects:: If it is set to true, git-receive-pack will check all received objects. It will abort in the case of a malformed object or a @@ -1919,6 +2289,28 @@ receive.fsckObjects:: Defaults to false. If not set, the value of `transfer.fsckObjects` is used instead. +receive.fsck.<msg-id>:: + When `receive.fsckObjects` is set to true, errors can be switched + to warnings and vice versa by configuring the `receive.fsck.<msg-id>` + setting where the `<msg-id>` is the fsck message ID and the value + is one of `error`, `warn` or `ignore`. For convenience, fsck prefixes + the error/warning with the message ID, e.g. "missingEmail: invalid + author/committer line - missing email" means that setting + `receive.fsck.missingEmail = ignore` will hide that issue. ++ +This feature is intended to support working with legacy repositories +which would not pass pushing when `receive.fsckObjects = true`, allowing +the host to accept repositories with certain known issues but still catch +other issues. + +receive.fsck.skipList:: + The path to a sorted list of object names (i.e. one SHA-1 per + line) that are known to be broken in a non-fatal way and should + be ignored. This feature is useful when an established project + should be accepted despite early commits containing errors that + can be safely ignored such as invalid committer email addresses. + Note: corrupt objects cannot be skipped with this setting. + receive.unpackLimit:: If the number of objects received in a push is below this limit then the objects will be unpacked into loose object @@ -1945,6 +2337,17 @@ receive.denyCurrentBranch:: print a warning of such a push to stderr, but allow the push to proceed. If set to false or "ignore", allow such pushes with no message. Defaults to "refuse". ++ +Another option is "updateInstead" which will update the working +tree if pushing into the current branch. This option is +intended for synchronizing working directories when one side is not easily +accessible via interactive ssh (e.g. a live web site, hence the requirement +that the working directory be clean). This mode also comes in handy when +developing inside a VM to test and fix code on different Operating Systems. ++ +By default, "updateInstead" will refuse the push if the working tree or +the index have any difference from the HEAD, but the `push-to-checkout` +hook can be used to customize this. See linkgit:githooks[5]. receive.denyNonFastForwards:: If set to true, git-receive-pack will deny a ref update which is @@ -1952,23 +2355,24 @@ receive.denyNonFastForwards:: even if that push is forced. This configuration variable is set when initializing a shared repository. -receive.hiderefs:: - String(s) `receive-pack` uses to decide which refs to omit - from its initial advertisement. Use more than one - definitions to specify multiple prefix strings. A ref that - are under the hierarchies listed on the value of this - variable is excluded, and is hidden when responding to `git - push`, and an attempt to update or delete a hidden ref by - `git push` is rejected. +receive.hideRefs:: + This variable is the same as `transfer.hideRefs`, but applies + only to `receive-pack` (and so affects pushes, but not fetches). + An attempt to update or delete a hidden ref by `git push` is + rejected. -receive.updateserverinfo:: +receive.updateServerInfo:: If set to true, git-receive-pack will run git-update-server-info after receiving data from git-push and updating refs. -remote.pushdefault:: +receive.shallowUpdate:: + If set to true, .git/shallow can be updated when new refs + require new shallow roots. Otherwise those refs are rejected. + +remote.pushDefault:: The remote to push to by default. Overrides `branch.<name>.remote` for all branches, and is overridden by - `branch.<name>.pushremote` for specific branches. + `branch.<name>.pushRemote` for specific branches. remote.<name>.url:: The URL of a remote repository. See linkgit:git-fetch[1] or @@ -2006,29 +2410,35 @@ remote.<name>.skipFetchAll:: remote.<name>.receivepack:: The default program to execute on the remote side when pushing. See - option \--receive-pack of linkgit:git-push[1]. + option --receive-pack of linkgit:git-push[1]. remote.<name>.uploadpack:: The default program to execute on the remote side when fetching. See - option \--upload-pack of linkgit:git-fetch-pack[1]. + option --upload-pack of linkgit:git-fetch-pack[1]. -remote.<name>.tagopt:: - Setting this value to \--no-tags disables automatic tag following when - fetching from remote <name>. Setting it to \--tags will fetch every +remote.<name>.tagOpt:: + Setting this value to --no-tags disables automatic tag following when + fetching from remote <name>. Setting it to --tags will fetch every tag from remote <name>, even if they are not reachable from remote branch heads. Passing these flags directly to linkgit:git-fetch[1] can - override this setting. See options \--tags and \--no-tags of + override this setting. See options --tags and --no-tags of linkgit:git-fetch[1]. remote.<name>.vcs:: Setting this to a value <vcs> will cause Git to interact with the remote with the git-remote-<vcs> helper. +remote.<name>.prune:: + When set to true, fetching from this remote by default will also + remove any remote-tracking references that no longer exist on the + remote (as if the `--prune` option was given on the command line). + Overrides `fetch.prune` settings, if any. + remotes.<group>:: The list of remotes which are fetched by "git remote update <group>". See linkgit:git-remote[1]. -repack.usedeltabaseoffset:: +repack.useDeltaBaseOffset:: By default, linkgit:git-repack[1] creates packs that use delta-base offset. If you need to share your repository with Git older than version 1.4.4, either directly or via a dumb @@ -2036,7 +2446,22 @@ repack.usedeltabaseoffset:: "false" and repack. Access from old Git versions over the native protocol are unaffected by this option. -rerere.autoupdate:: +repack.packKeptObjects:: + If set to true, makes `git repack` act as if + `--pack-kept-objects` was passed. See linkgit:git-repack[1] for + details. Defaults to `false` normally, but `true` if a bitmap + index is being written (either via `--write-bitmap-index` or + `repack.writeBitmaps`). + +repack.writeBitmaps:: + When true, git will write a bitmap index when packing all + objects to disk (e.g., when `git repack -a` is run). This + index can speed up the "counting objects" phase of subsequent + packs created for clones and fetches, at the cost of some disk + space and extra time spent on the initial repack. Defaults to + false. + +rerere.autoUpdate:: When set to true, `git-rerere` updates the index with the resulting contents after it cleanly resolves conflicts using previously recorded resolution. Defaults to false. @@ -2055,12 +2480,12 @@ sendemail.identity:: values in the 'sendemail' section. The default identity is the value of 'sendemail.identity'. -sendemail.smtpencryption:: +sendemail.smtpEncryption:: See linkgit:git-send-email[1] for description. Note that this setting is not subject to the 'identity' mechanism. -sendemail.smtpssl:: - Deprecated alias for 'sendemail.smtpencryption = ssl'. +sendemail.smtpssl (deprecated):: + Deprecated alias for 'sendemail.smtpEncryption = ssl'. sendemail.smtpsslcertpath:: Path to ca-certificates (either a directory or a single file). @@ -2072,32 +2497,34 @@ sendemail.<identity>.*:: identity is selected, through command-line or 'sendemail.identity'. -sendemail.aliasesfile:: -sendemail.aliasfiletype:: +sendemail.aliasesFile:: +sendemail.aliasFileType:: sendemail.annotate:: sendemail.bcc:: sendemail.cc:: -sendemail.cccmd:: -sendemail.chainreplyto:: +sendemail.ccCmd:: +sendemail.chainReplyTo:: sendemail.confirm:: -sendemail.envelopesender:: +sendemail.envelopeSender:: sendemail.from:: -sendemail.multiedit:: +sendemail.multiEdit:: sendemail.signedoffbycc:: -sendemail.smtppass:: +sendemail.smtpPass:: sendemail.suppresscc:: -sendemail.suppressfrom:: +sendemail.suppressFrom:: sendemail.to:: -sendemail.smtpdomain:: -sendemail.smtpserver:: -sendemail.smtpserverport:: -sendemail.smtpserveroption:: -sendemail.smtpuser:: +sendemail.smtpDomain:: +sendemail.smtpServer:: +sendemail.smtpServerPort:: +sendemail.smtpServerOption:: +sendemail.smtpUser:: sendemail.thread:: +sendemail.transferEncoding:: sendemail.validate:: +sendemail.xmailer:: See linkgit:git-send-email[1] for description. -sendemail.signedoffcc:: +sendemail.signedoffcc (deprecated):: Deprecated alias for 'sendemail.signedoffbycc'. showbranch.default:: @@ -2118,12 +2545,19 @@ status.branch:: Set to true to enable --branch by default in linkgit:git-status[1]. The option --no-branch takes precedence over this variable. +status.displayCommentPrefix:: + If set to true, linkgit:git-status[1] will insert a comment + prefix before each output line (starting with + `core.commentChar`, i.e. `#` by default). This was the + behavior of linkgit:git-status[1] in Git 1.8.4 and previous. + Defaults to false. + status.showUntrackedFiles:: By default, linkgit:git-status[1] and linkgit:git-commit[1] show files which are not currently tracked by Git. Directories which contain only untracked files, are shown with the directory name only. Showing untracked files means that Git needs to lstat() all - all the files in the whole repository, which might be slow on some + the files in the whole repository, which might be slow on some systems. So, this variable controls how the commands displays the untracked files. Possible values are: + @@ -2137,21 +2571,34 @@ If this variable is not specified, it defaults to 'normal'. This variable can be overridden with the -u|--untracked-files option of linkgit:git-status[1] and linkgit:git-commit[1]. -status.submodulesummary:: +status.submoduleSummary:: Defaults to false. If this is set to a non zero number or true (identical to -1 or an unlimited number), the submodule summary will be enabled and a summary of commits for modified submodules will be shown (see - --summary-limit option of linkgit:git-submodule[1]). + --summary-limit option of linkgit:git-submodule[1]). Please note + that the summary output command will be suppressed for all + submodules when `diff.ignoreSubmodules` is set to 'all' or only + for those submodules where `submodule.<name>.ignore=all`. The only + exception to that rule is that status and commit will show staged + submodule changes. To + also view the summary for ignored submodules you can either use + the --ignore-submodules=dirty command-line option or the 'git + submodule summary' command, which shows a similar output but does + not honor these settings. submodule.<name>.path:: submodule.<name>.url:: + The path within this project and URL for a submodule. These + variables are initially populated by 'git submodule init'. See + linkgit:git-submodule[1] and linkgit:gitmodules[5] for + details. + submodule.<name>.update:: - The path within this project, URL, and the updating strategy - for a submodule. These variables are initially populated - by 'git submodule init'; edit them to override the - URL and other values found in the `.gitmodules` file. See - linkgit:git-submodule[1] and linkgit:gitmodules[5] for details. + The default update procedure for a submodule. This variable + is populated by `git submodule init` from the + linkgit:gitmodules[5] file. See description of 'update' + command in linkgit:git-submodule[1]. submodule.<name>.branch:: The remote branch name for a submodule, used by `git submodule @@ -2162,14 +2609,16 @@ submodule.<name>.branch:: submodule.<name>.fetchRecurseSubmodules:: This option can be used to control recursive fetching of this submodule. It can be overridden by using the --[no-]recurse-submodules - command line option to "git fetch" and "git pull". + command-line option to "git fetch" and "git pull". This setting will override that from in the linkgit:gitmodules[5] file. submodule.<name>.ignore:: Defines under what circumstances "git status" and the diff family show a submodule as modified. When set to "all", it will never be considered - modified, "dirty" will ignore all changes to the submodules work tree and + modified (but it will nonetheless show up in the output of status and + commit when it has been staged), "dirty" will ignore all changes + to the submodules work tree and takes only differences between the HEAD of the submodule and the commit recorded in the superproject into account. "untracked" will additionally let submodules with modified tracked files in their work tree show up. @@ -2177,7 +2626,13 @@ submodule.<name>.ignore:: submodules that have untracked files in their work tree as changed. This setting overrides any setting made in .gitmodules for this submodule, both settings can be overridden on the command line by using the - "--ignore-submodules" option. + "--ignore-submodules" option. The 'git submodule' commands are not + affected by this setting. + +tag.sort:: + This variable controls the sort ordering of tags when displayed by + linkgit:git-tag[1]. Without the "--sort=<value>" option provided, the + value of this variable will be used as the default. tar.umask:: This variable can be used to restrict the permission bits of @@ -2191,32 +2646,51 @@ transfer.fsckObjects:: not set, the value of this variable is used instead. Defaults to false. -transfer.hiderefs:: - This variable can be used to set both `receive.hiderefs` - and `uploadpack.hiderefs` at the same time to the same - values. See entries for these other variables. +transfer.hideRefs:: + String(s) `receive-pack` and `upload-pack` use to decide which + refs to omit from their initial advertisements. Use more than + one definition to specify multiple prefix strings. A ref that is + under the hierarchies listed in the value of this variable is + excluded, and is hidden when responding to `git push` or `git + fetch`. See `receive.hideRefs` and `uploadpack.hideRefs` for + program-specific versions of this config. ++ +You may also include a `!` in front of the ref name to negate the entry, +explicitly exposing it, even if an earlier entry marked it as hidden. +If you have multiple hideRefs values, later entries override earlier ones +(and entries in more-specific config files override less-specific ones). transfer.unpackLimit:: When `fetch.unpackLimit` or `receive.unpackLimit` are not set, the value of this variable is used instead. The default value is 100. -uploadpack.hiderefs:: - String(s) `upload-pack` uses to decide which refs to omit - from its initial advertisement. Use more than one - definitions to specify multiple prefix strings. A ref that - are under the hierarchies listed on the value of this - variable is excluded, and is hidden from `git ls-remote`, - `git fetch`, etc. An attempt to fetch a hidden ref by `git - fetch` will fail. See also `uploadpack.allowtipsha1inwant`. - -uploadpack.allowtipsha1inwant:: - When `uploadpack.hiderefs` is in effect, allow `upload-pack` +uploadarchive.allowUnreachable:: + If true, allow clients to use `git archive --remote` to request + any tree, whether reachable from the ref tips or not. See the + discussion in the `SECURITY` section of + linkgit:git-upload-archive[1] for more details. Defaults to + `false`. + +uploadpack.hideRefs:: + This variable is the same as `transfer.hideRefs`, but applies + only to `upload-pack` (and so affects only fetches, not pushes). + An attempt to fetch a hidden ref by `git fetch` will fail. See + also `uploadpack.allowTipSHA1InWant`. + +uploadpack.allowTipSHA1InWant:: + When `uploadpack.hideRefs` is in effect, allow `upload-pack` to accept a fetch request that asks for an object at the tip of a hidden ref (by default, such a request is rejected). - see also `uploadpack.hiderefs`. + see also `uploadpack.hideRefs`. -uploadpack.keepalive:: +uploadpack.allowReachableSHA1InWant:: + Allow `upload-pack` to accept a fetch request that asks for an + object that is reachable from any ref tip. However, note that + calculating object reachability is computationally expensive. + Defaults to `false`. + +uploadpack.keepAlive:: When `upload-pack` has started `pack-objects`, there may be a quiet period while `pack-objects` prepares the pack. Normally it would output progress information, but if `--quiet` was used @@ -2224,7 +2698,7 @@ uploadpack.keepalive:: the pack data begins. Some clients and networks may consider the server to be hung and give up. Setting this option instructs `upload-pack` to send an empty keepalive packet every - `uploadpack.keepalive` seconds. Setting this option to 0 + `uploadpack.keepAlive` seconds. Setting this option to 0 disables keepalive packets entirely. The default is 5 seconds. url.<base>.insteadOf:: @@ -2261,12 +2735,24 @@ user.name:: Can be overridden by the 'GIT_AUTHOR_NAME' and 'GIT_COMMITTER_NAME' environment variables. See linkgit:git-commit-tree[1]. -user.signingkey:: - If linkgit:git-tag[1] is not selecting the key you want it to - automatically when creating a signed tag, you can override the - default selection with this variable. This option is passed - unchanged to gpg's --local-user parameter, so you may specify a key - using any method that gpg supports. +user.signingKey:: + If linkgit:git-tag[1] or linkgit:git-commit[1] is not selecting the + key you want it to automatically when creating a signed tag or + commit, you can override the default selection with this variable. + This option is passed unchanged to gpg's --local-user parameter, + so you may specify a key using any method that gpg supports. + +versionsort.prereleaseSuffix:: + When version sort is used in linkgit:git-tag[1], prerelease + tags (e.g. "1.0-rc1") may appear after the main release + "1.0". By specifying the suffix "-rc" in this variable, + "1.0-rc1" will appear before "1.0". ++ +This variable can be specified multiple times, once per suffix. The +order of suffixes in the config file determines the sorting order +(e.g. if "-pre" appears before "-rc" in the config file then 1.0-preXX +is sorted before 1.0-rcXX). The sorting order between different +suffixes is undefined if they are in multiple config files. web.browser:: Specify a web browser that may be used by some commands. diff --git a/Documentation/date-formats.txt b/Documentation/date-formats.txt index c000f08a9d..ccd1fc8122 100644 --- a/Documentation/date-formats.txt +++ b/Documentation/date-formats.txt @@ -8,9 +8,9 @@ endif::git-commit[] support the following date formats: Git internal format:: - It is `<unix timestamp> <timezone offset>`, where `<unix + It is `<unix timestamp> <time zone offset>`, where `<unix timestamp>` is the number of seconds since the UNIX epoch. - `<timezone offset>` is a positive or negative offset from UTC. + `<time zone offset>` is a positive or negative offset from UTC. For example CET (which is 2 hours ahead UTC) is `+0200`. RFC 2822:: diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt index ac77050255..6eaa45271c 100644 --- a/Documentation/diff-config.txt +++ b/Documentation/diff-config.txt @@ -1,4 +1,4 @@ -diff.autorefreshindex:: +diff.autoRefreshIndex:: When using 'git diff' to compare with work tree files, do not consider stat-only change as changed. Instead, silently run `git update-index --refresh` to @@ -73,9 +73,13 @@ diff.ignoreSubmodules:: Sets the default value of --ignore-submodules. Note that this affects only 'git diff' Porcelain, and not lower level 'diff' commands such as 'git diff-files'. 'git checkout' also honors - this setting when reporting uncommitted changes. + this setting when reporting uncommitted changes. Setting it to + 'all' disables the submodule summary normally shown by 'git commit' + and 'git status' when 'status.submoduleSummary' is set unless it is + overridden by using the --ignore-submodules command-line option. + The 'git submodule' commands are not affected by this setting. -diff.mnemonicprefix:: +diff.mnemonicPrefix:: If set, 'git diff' uses a prefix pair that is different from the standard "a/" and "b/" depending on what is being compared. When this configuration is in effect, reverse diff output also swaps @@ -94,6 +98,11 @@ diff.mnemonicprefix:: diff.noprefix:: If set, 'git diff' does not show any source or destination prefix. +diff.orderFile:: + File indicating how to order files within a diff, using + one shell glob pattern per line. + Can be overridden by the '-O' option to linkgit:git-diff[1]. + diff.renameLimit:: The number of files to consider when performing the copy/rename detection; equivalent to the 'git diff' option '-l'. @@ -139,7 +148,7 @@ diff.<driver>.textconv:: conversion is used to generate a human-readable diff. See linkgit:gitattributes[5] for details. -diff.<driver>.wordregex:: +diff.<driver>.wordRegex:: The regular expression that the diff driver should use to split words in a line. See linkgit:gitattributes[5] for details. diff --git a/Documentation/diff-format.txt b/Documentation/diff-format.txt index 15c7e794f4..85b08909ce 100644 --- a/Documentation/diff-format.txt +++ b/Documentation/diff-format.txt @@ -66,7 +66,8 @@ be committed) Status letters C and R are always followed by a score (denoting the percentage of similarity between the source and target of the move or -copy), and are the only ones to be so. +copy). Status letter M may be followed by a score (denoting the +percentage of dissimilarity) for file rewrites. <sha1> is shown as all 0's if a file is new on the filesystem and it is out of sync with the index. diff --git a/Documentation/diff-generate-patch.txt b/Documentation/diff-generate-patch.txt index 55f499a160..bcf54da82a 100644 --- a/Documentation/diff-generate-patch.txt +++ b/Documentation/diff-generate-patch.txt @@ -77,7 +77,7 @@ combined diff format Any diff-generating command can take the `-c` or `--cc` option to produce a 'combined diff' when showing a merge. This is the default format when showing merges with linkgit:git-diff[1] or -linkgit:git-show[1]. Note also that you can give the `-m' option to any +linkgit:git-show[1]. Note also that you can give the `-m` option to any of these commands to force generation of diffs with individual parents of a merge. @@ -174,7 +174,7 @@ added, from the point of view of that parent). In the above example output, the function signature was changed from both files (hence two `-` removals from both file1 and file2, plus `++` to mean one line that was added does not appear -in either file1 nor file2). Also eight other lines are the same +in either file1 or file2). Also eight other lines are the same from file1 but do not appear in file2 (hence prefixed with `+`). When shown by `git diff-tree -c`, it compares the parents of a diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index bbed2cd79c..d56ca90998 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -23,7 +23,9 @@ ifndef::git-format-patch[] -u:: --patch:: Generate patch (see section on generating patches). - {git-diff? This is the default.} +ifdef::git-diff[] + This is the default. +endif::git-diff[] endif::git-format-patch[] -s:: @@ -41,8 +43,19 @@ endif::git-format-patch[] ifndef::git-format-patch[] --raw:: - Generate the raw format. - {git-diff-core? This is the default.} +ifndef::git-log[] + Generate the diff in raw format. +ifdef::git-diff-core[] + This is the default. +endif::git-diff-core[] +endif::git-log[] +ifdef::git-log[] + For each commit, show a summary of changes using the raw diff + format. See the "RAW OUTPUT FORMAT" section of + linkgit:git-diff[1]. This is different from showing the log + itself in raw format, which you can achieve with + `--format=raw`. +endif::git-log[] endif::git-format-patch[] ifndef::git-format-patch[] @@ -278,6 +291,16 @@ ifndef::git-format-patch[] initial indent of the line are considered whitespace errors. Exits with non-zero status if problems are found. Not compatible with --exit-code. + +--ws-error-highlight=<kind>:: + Highlight whitespace errors on lines specified by <kind> + in the color specified by `color.diff.whitespace`. <kind> + is a comma separated list of `old`, `new`, `context`. When + this option is not given, only whitespace errors in `new` + lines are highlighted. E.g. `--ws-error-highlight=new,old` + highlights whitespace errors on both deleted and added lines. + `all` can be used as a short-hand for `old,new,context`. + endif::git-format-patch[] --full-index:: @@ -358,7 +381,7 @@ endif::git-log[] --irreversible-delete:: Omit the preimage for deletes, i.e. print only the header but not the diff between the preimage and `/dev/null`. The resulting patch - is not meant to be applied with `patch` nor `git apply`; this is + is not meant to be applied with `patch` or `git apply`; this is solely for people who want to just concentrate on reviewing the text after the change. In addition, the output obviously lack enough information to apply such a patch in reverse, even manually, @@ -432,6 +455,9 @@ endif::git-format-patch[] -O<orderfile>:: Output the patch in the order specified in the <orderfile>, which has one shell glob pattern per line. + This overrides the `diff.orderFile` configuration variable + (see linkgit:git-config[1]). To cancel `diff.orderFile`, + use `-O/dev/null`. ifndef::git-format-patch[] -R:: diff --git a/Documentation/everyday.txto b/Documentation/everyday.txto new file mode 100644 index 0000000000..c5047d8f9b --- /dev/null +++ b/Documentation/everyday.txto @@ -0,0 +1,9 @@ +Everyday Git With 20 Commands Or So +=================================== + +This document has been moved to linkgit:giteveryday[1]. + +Please let the owners of the referring site know so that they can update the +link you clicked to get here. + +Thanks. diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index ba1fe49582..45583d8454 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -14,8 +14,18 @@ branch history. Tags for the deepened commits are not fetched. --unshallow:: - Convert a shallow repository to a complete one, removing all - the limitations imposed by shallow repositories. + If the source repository is complete, convert a shallow + repository to a complete one, removing all the limitations + imposed by shallow repositories. ++ +If the source repository is shallow, fetch as much as possible so that +the current repository has the same history as the source repository. + +--update-shallow:: + By default when fetching from a shallow repository, + `git fetch` refuses refs that require updating + .git/shallow. This option updates .git/shallow and accept such + refs. ifndef::git-pull[] --dry-run:: @@ -41,31 +51,43 @@ ifndef::git-pull[] -p:: --prune:: - After fetching, remove any remote-tracking branches which - no longer exist on the remote. + After fetching, remove any remote-tracking references that no + longer exist on the remote. Tags are not subject to pruning + if they are fetched only because of the default tag + auto-following or due to a --tags option. However, if tags + are fetched due to an explicit refspec (either on the command + line or in the remote configuration, for example if the remote + was cloned with the --mirror option), then they are also + subject to pruning. endif::git-pull[] -ifdef::git-pull[] ---no-tags:: -endif::git-pull[] ifndef::git-pull[] -n:: ---no-tags:: endif::git-pull[] +--no-tags:: By default, tags that point at objects that are downloaded from the remote repository are fetched and stored locally. This option disables this automatic tag following. The default - behavior for a remote may be specified with the remote.<name>.tagopt + behavior for a remote may be specified with the remote.<name>.tagOpt setting. See linkgit:git-config[1]. ifndef::git-pull[] +--refmap=<refspec>:: + When fetching refs listed on the command line, use the + specified refspec (can be given more than once) to map the + refs to remote-tracking branches, instead of the values of + `remote.*.fetch` configuration variables for the remote + repository. See section on "Configured Remote-tracking + Branches" for details. + -t:: --tags:: - This is a short-hand for giving `refs/tags/*:refs/tags/*` - refspec from the command line, to ask all tags to be fetched - and stored locally. Because this acts as an explicit - refspec, the default refspecs (configured with the - remote.$name.fetch variable) are overridden and not used. + Fetch all tags from the remote (i.e., fetch remote tags + `refs/tags/*` into local tags with the same name), in addition + to whatever else would otherwise be fetched. Using this + option alone does not subject tags to pruning, even if --prune + is used (though tags may be pruned anyway if they are also the + destination of an explicit refspec; see '--prune'). --recurse-submodules[=yes|on-demand|no]:: This option controls if and under what conditions new commits of diff --git a/Documentation/fmt-merge-msg-config.txt b/Documentation/fmt-merge-msg-config.txt new file mode 100644 index 0000000000..c73cfa90b7 --- /dev/null +++ b/Documentation/fmt-merge-msg-config.txt @@ -0,0 +1,10 @@ +merge.branchdesc:: + In addition to branch names, populate the log message with + the branch description text associated with them. Defaults + to false. + +merge.log:: + In addition to branch names, populate the log message with at + most the specified number of one-line descriptions from the + actual commits that are being merged. Defaults to false, and + true is a synonym for 20. diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index 48754cbc67..fe5282f130 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -8,7 +8,7 @@ git-add - Add file contents to the index SYNOPSIS -------- [verse] -'git add' [-n] [-v] [--force | -f] [--interactive | -i] [--patch | -p] +'git add' [--verbose | -v] [--dry-run | -n] [--force | -f] [--interactive | -i] [--patch | -p] [--edit | -e] [--[no-]all | --[no-]ignore-removal | [--update | -u]] [--intent-to-add | -N] [--refresh] [--ignore-errors] [--ignore-missing] [--] [<pathspec>...] @@ -53,8 +53,14 @@ OPTIONS Files to add content from. Fileglobs (e.g. `*.c`) can be given to add all matching files. Also a leading directory name (e.g. `dir` to add `dir/file1` - and `dir/file2`) can be given to add all files in the - directory, recursively. + and `dir/file2`) can be given to update the index to + match the current state of the directory as a whole (e.g. + specifying `dir` will record not just a file `dir/file1` + modified in the working tree, a file `dir/file2` added to + the working tree, but also a file `dir/file3` removed from + the working tree. Note that older versions of Git used + to ignore removed files; use `--no-all` option if you want + to add modified or new files but ignore removed ones. -n:: --dry-run:: @@ -87,7 +93,8 @@ This effectively runs `add --interactive`, but bypasses the initial command menu and directly jumps to the `patch` subcommand. See ``Interactive mode'' for details. --e, \--edit:: +-e:: +--edit:: Open the diff vs. the index in an editor and let the user edit it. After the editor was closed, adjust the hunk headers and apply the patch to the index. @@ -104,10 +111,10 @@ apply to the index. See EDITING PATCHES below. <pathspec>. This removes as well as modifies index entries to match the working tree, but adds no new files. + -If no <pathspec> is given, the current version of Git defaults to -"."; in other words, update all tracked files in the current directory -and its subdirectories. This default will change in a future version -of Git, hence the form without <pathspec> should not be used. +If no <pathspec> is given when `-u` option is used, all +tracked files in the entire working tree are updated (old versions +of Git used to limit the update to the current directory and its +subdirectories). -A:: --all:: @@ -117,10 +124,10 @@ of Git, hence the form without <pathspec> should not be used. entry. This adds, modifies, and removes index entries to match the working tree. + -If no <pathspec> is given, the current version of Git defaults to -"."; in other words, update all files in the current directory -and its subdirectories. This default will change in a future version -of Git, hence the form without <pathspec> should not be used. +If no <pathspec> is given when `-A` option is used, all +files in the entire working tree are updated (old versions +of Git used to limit the update to the current directory and its +subdirectories). --no-all:: --ignore-removal:: @@ -129,11 +136,9 @@ of Git, hence the form without <pathspec> should not be used. files that have been removed from the working tree. This option is a no-op when no <pathspec> is used. + -This option is primarily to help the current users of Git, whose -"git add <pathspec>..." ignores removed files. In future versions -of Git, "git add <pathspec>..." will be a synonym to "git add -A -<pathspec>..." and "git add --ignore-removal <pathspec>..." will behave like -today's "git add <pathspec>...", ignoring removed files. +This option is primarily to help users who are used to older +versions of Git, whose "git add <pathspec>..." was a synonym +for "git add --no-all <pathspec>...", i.e. ignored removed files. -N:: --intent-to-add:: @@ -169,7 +174,7 @@ today's "git add <pathspec>...", ignoring removed files. Configuration ------------- -The optional configuration variable `core.excludesfile` indicates a path to a +The optional configuration variable `core.excludesFile` indicates a path to a file containing patterns of file names to exclude from git-add, similar to $GIT_DIR/info/exclude. Patterns in the exclude file are used in addition to those in info/exclude. See linkgit:gitignore[5]. @@ -296,9 +301,9 @@ patch:: y - stage this hunk n - do not stage this hunk - q - quit; do not stage this hunk nor any of the remaining ones + q - quit; do not stage this hunk or any of the remaining ones a - stage this hunk and all later hunks in the file - d - do not stage this hunk nor any of the later hunks in the file + d - do not stage this hunk or any of the later hunks in the file g - select a hunk to go to / - search for a hunk matching the given regex j - leave this hunk undecided, see next undecided hunk @@ -313,7 +318,7 @@ After deciding the fate for all hunks, if there is any hunk that was chosen, the index is updated with the selected hunks. + You can omit having to type return here, by setting the configuration -variable `interactive.singlekey` to `true`. +variable `interactive.singleKey` to `true`. diff:: diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt index 54d8461d61..dbea6e7ae9 100644 --- a/Documentation/git-am.txt +++ b/Documentation/git-am.txt @@ -10,11 +10,11 @@ SYNOPSIS -------- [verse] 'git am' [--signoff] [--keep] [--[no-]keep-cr] [--[no-]utf8] - [--3way] [--interactive] [--committer-date-is-author-date] + [--[no-]3way] [--interactive] [--committer-date-is-author-date] [--ignore-date] [--ignore-space-change | --ignore-whitespace] [--whitespace=<option>] [-C<n>] [-p<n>] [--directory=<dir>] [--exclude=<path>] [--include=<path>] [--reject] [-q | --quiet] - [--[no-]scissors] + [--[no-]scissors] [-S[<keyid>]] [--patch-format=<format>] [(<mbox> | <Maildir>)...] 'git am' (--continue | --skip | --abort) @@ -52,11 +52,23 @@ OPTIONS -c:: --scissors:: Remove everything in body before a scissors line (see - linkgit:git-mailinfo[1]). + linkgit:git-mailinfo[1]). Can be activated by default using + the `mailinfo.scissors` configuration variable. --no-scissors:: Ignore scissors lines (see linkgit:git-mailinfo[1]). +-m:: +--message-id:: + Pass the `-m` flag to 'git mailinfo' (see linkgit:git-mailinfo[1]), + so that the Message-ID header is added to the commit message. + The `am.messageid` configuration variable can be used to specify + the default behaviour. + +--no-message-id:: + Do not add the Message-ID header to the commit message. + `no-message-id` is useful to override `am.messageid`. + -q:: --quiet:: Be quiet. Only print error messages. @@ -78,12 +90,14 @@ default. You can use `--no-utf8` to override this. -3:: --3way:: +--no-3way:: When the patch does not apply cleanly, fall back on 3-way merge if the patch records the identity of blobs it is supposed to apply to and we have those blobs - available locally. + available locally. `--no-3way` can be used to override + am.threeWay configuration variable. For more information, + see am.threeWay in linkgit:git-config[1]. ---ignore-date:: --ignore-space-change:: --ignore-whitespace:: --whitespace=<option>:: @@ -97,6 +111,12 @@ default. You can use `--no-utf8` to override this. program that applies the patch. +--patch-format:: + By default the command will try to detect the patch format + automatically. This option allows the user to bypass the automatic + detection and specify the patch format that the patch(es) should be + interpreted as. Valid formats are mbox, stgit, stgit-series and hg. + -i:: --interactive:: Run interactively. @@ -119,6 +139,10 @@ default. You can use `--no-utf8` to override this. Skip the current patch. This is only meaningful when restarting an aborted patch. +-S[<keyid>]:: +--gpg-sign[=<keyid>]:: + GPG-sign commits. + --continue:: -r:: --resolved:: @@ -189,6 +213,11 @@ commits, like running 'git am' on the wrong branch or an error in the commits that is more easily fixed by changing the mailbox (e.g. errors in the "From:" lines). +HOOKS +----- +This command can run `applypatch-msg`, `pre-applypatch`, +and `post-applypatch` hooks. See linkgit:githooks[5] for more +information. SEE ALSO -------- diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt index f605327946..d9ed6a1a4e 100644 --- a/Documentation/git-apply.txt +++ b/Documentation/git-apply.txt @@ -16,7 +16,7 @@ SYNOPSIS [--ignore-space-change | --ignore-whitespace ] [--whitespace=(nowarn|warn|fix|error|error-all)] [--exclude=<path>] [--include=<path>] [--directory=<root>] - [--verbose] [<patch>...] + [--verbose] [--unsafe-paths] [<patch>...] DESCRIPTION ----------- @@ -229,10 +229,20 @@ For example, a patch that talks about updating `a/git-gui.sh` to `b/git-gui.sh` can be applied to the file in the working tree `modules/git-gui/git-gui.sh` by running `git apply --directory=modules/git-gui`. +--unsafe-paths:: + By default, a patch that affects outside the working area + (either a Git controlled working tree, or the current working + directory when "git apply" is used as a replacement of GNU + patch) is rejected as a mistake (or a mischief). ++ +When `git apply` is used as a "better GNU patch", the user can pass +the `--unsafe-paths` option to override this safety check. This option +has no effect when `--index` or `--cached` is in use. + Configuration ------------- -apply.ignorewhitespace:: +apply.ignoreWhitespace:: Set to 'change' if you want changes in whitespace to be ignored by default. Set to one of: no, none, never, false if you want changes in whitespace to be significant. diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt index b97aaab4ed..cfa1e4ebe4 100644 --- a/Documentation/git-archive.txt +++ b/Documentation/git-archive.txt @@ -65,7 +65,10 @@ OPTIONS --remote=<repo>:: Instead of making a tar archive from the local repository, - retrieve a tar archive from a remote repository. + retrieve a tar archive from a remote repository. Note that the + remote repository may place restrictions on which sha1 + expressions may be allowed in `<tree-ish>`. See + linkgit:git-upload-archive[1] for details. --exec=<git-upload-archive>:: Used with --remote to specify the path to the diff --git a/Documentation/git-bisect-lk2009.txt b/Documentation/git-bisect-lk2009.txt index afeb86c6cd..0f0c6ff082 100644 --- a/Documentation/git-bisect-lk2009.txt +++ b/Documentation/git-bisect-lk2009.txt @@ -119,7 +119,7 @@ developed and maintained during years or even tens of years by a lot of people. And as there are often many people who depend (sometimes critically) on such software, regressions are a really big problem. -One such software is the linux kernel. And if we look at the linux +One such software is the Linux kernel. And if we look at the Linux kernel, we can see that a lot of time and effort is spent to fight regressions. The release cycle start with a 2 weeks long merge window. Then the first release candidate (rc) version is tagged. And @@ -132,7 +132,7 @@ regressions. And this time is more than 80% of the release cycle time. But this is not the end of the fight yet, as of course it continues after the release. -And then this is what Ingo Molnar (a well known linux kernel +And then this is what Ingo Molnar (a well known Linux kernel developer) says about his use of git bisect: _____________ diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt index f986c5cb3a..e97f2de21b 100644 --- a/Documentation/git-bisect.txt +++ b/Documentation/git-bisect.txt @@ -3,7 +3,7 @@ git-bisect(1) NAME ---- -git-bisect - Find by binary search the change that introduced a bug +git-bisect - Use binary search to find the commit that introduced a bug SYNOPSIS @@ -16,7 +16,6 @@ DESCRIPTION The command takes various subcommands, and different options depending on the subcommand: - git bisect help git bisect start [--no-checkout] [<bad> [<good>...]] [--] [<paths>...] git bisect bad [<rev>] git bisect good [<rev>...] @@ -26,64 +25,71 @@ on the subcommand: git bisect replay <logfile> git bisect log git bisect run <cmd>... + git bisect help -This command uses 'git rev-list --bisect' to help drive the -binary search process to find which change introduced a bug, given an -old "good" commit object name and a later "bad" commit object name. - -Getting help -~~~~~~~~~~~~ - -Use "git bisect" to get a short usage description, and "git bisect -help" or "git bisect -h" to get a long usage description. +This command uses a binary search algorithm to find which commit in +your project's history introduced a bug. You use it by first telling +it a "bad" commit that is known to contain the bug, and a "good" +commit that is known to be before the bug was introduced. Then `git +bisect` picks a commit between those two endpoints and asks you +whether the selected commit is "good" or "bad". It continues narrowing +down the range until it finds the exact commit that introduced the +change. Basic bisect commands: start, bad, good ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Using the Linux kernel tree as an example, basic use of the bisect -command is as follows: +As an example, suppose you are trying to find the commit that broke a +feature that was known to work in version `v2.6.13-rc2` of your +project. You start a bisect session as follows: ------------------------------------------------ $ git bisect start $ git bisect bad # Current version is bad -$ git bisect good v2.6.13-rc2 # v2.6.13-rc2 was the last version - # tested that was good +$ git bisect good v2.6.13-rc2 # v2.6.13-rc2 is known to be good ------------------------------------------------ -When you have specified at least one bad and one good version, the -command bisects the revision tree and outputs something similar to -the following: +Once you have specified at least one bad and one good commit, `git +bisect` selects a commit in the middle of that range of history, +checks it out, and outputs something similar to the following: ------------------------------------------------ -Bisecting: 675 revisions left to test after this +Bisecting: 675 revisions left to test after this (roughly 10 steps) ------------------------------------------------ -The state in the middle of the set of revisions is then checked out. -You would now compile that kernel and boot it. If the booted kernel -works correctly, you would then issue the following command: +You should now compile the checked-out version and test it. If that +version works correctly, type ------------------------------------------------ -$ git bisect good # this one is good +$ git bisect good ------------------------------------------------ -The output of this command would be something similar to the following: +If that version is broken, type ------------------------------------------------ -Bisecting: 337 revisions left to test after this +$ git bisect bad ------------------------------------------------ -You keep repeating this process, compiling the tree, testing it, and -depending on whether it is good or bad issuing the command "git bisect good" -or "git bisect bad" to ask for the next bisection. +Then `git bisect` will respond with something like + +------------------------------------------------ +Bisecting: 337 revisions left to test after this (roughly 9 steps) +------------------------------------------------ + +Keep repeating the process: compile the tree, test it, and depending +on whether it is good or bad run `git bisect good` or `git bisect bad` +to ask for the next commit that needs testing. + +Eventually there will be no more revisions left to inspect, and the +command will print out a description of the first bad commit. The +reference `refs/bisect/bad` will be left pointing at that commit. -Eventually there will be no more revisions left to bisect, and you -will have been left with the first bad kernel revision in "refs/bisect/bad". Bisect reset ~~~~~~~~~~~~ After a bisect session, to clean up the bisection state and return to -the original HEAD (i.e., to quit bisecting), issue the following command: +the original HEAD, issue the following command: ------------------------------------------------ $ git bisect reset @@ -100,9 +106,10 @@ instead: $ git bisect reset <commit> ------------------------------------------------ -For example, `git bisect reset HEAD` will leave you on the current -bisection commit and avoid switching commits at all, while `git bisect -reset bisect/bad` will check out the first bad revision. +For example, `git bisect reset bisect/bad` will check out the first +bad revision, while `git bisect reset HEAD` will leave you on the +current bisection commit and avoid switching commits at all. + Bisect visualize ~~~~~~~~~~~~~~~~ @@ -117,7 +124,7 @@ $ git bisect visualize `view` may also be used as a synonym for `visualize`. If the 'DISPLAY' environment variable is not set, 'git log' is used -instead. You can also give command line options such as `-p` and +instead. You can also give command-line options such as `-p` and `--stat`. ------------ @@ -147,17 +154,17 @@ $ git bisect replay that-file Avoiding testing a commit ~~~~~~~~~~~~~~~~~~~~~~~~~ -If, in the middle of a bisect session, you know that the next suggested -revision is not a good one to test (e.g. the change the commit -introduces is known not to work in your environment and you know it -does not have anything to do with the bug you are chasing), you may -want to find a nearby commit and try that instead. +If, in the middle of a bisect session, you know that the suggested +revision is not a good one to test (e.g. it fails to build and you +know that the failure does not have anything to do with the bug you +are chasing), you can manually select a nearby commit and test that +one instead. For example: ------------ $ git bisect good/bad # previous round was good or bad. -Bisecting: 337 revisions left to test after this +Bisecting: 337 revisions left to test after this (roughly 9 steps) $ git bisect visualize # oops, that is uninteresting. $ git reset --hard HEAD~3 # try 3 revisions before what # was suggested @@ -169,18 +176,19 @@ the revision as good or bad in the usual manner. Bisect skip ~~~~~~~~~~~~ -Instead of choosing by yourself a nearby commit, you can ask Git -to do it for you by issuing the command: +Instead of choosing a nearby commit by yourself, you can ask Git to do +it for you by issuing the command: ------------ $ git bisect skip # Current version cannot be tested ------------ -But Git may eventually be unable to tell the first bad commit among -a bad commit and one or more skipped commits. +However, if you skip a commit adjacent to the one you are looking for, +Git will be unable to tell exactly which of those commits was the +first bad one. -You can even skip a range of commits, instead of just one commit, -using the "'<commit1>'..'<commit2>'" notation. For example: +You can also skip a range of commits, instead of just one commit, +using range notation. For example: ------------ $ git bisect skip v2.5..v2.6 @@ -196,8 +204,8 @@ would issue the command: $ git bisect skip v2.5 v2.5..v2.6 ------------ -This tells the bisect process that the commits between `v2.5` included -and `v2.6` included should be skipped. +This tells the bisect process that the commits between `v2.5` and +`v2.6` (inclusive) should be skipped. Cutting down bisection by giving more parameters to bisect start @@ -231,14 +239,14 @@ or bad, you can bisect by issuing the command: $ git bisect run my_script arguments ------------ -Note that the script (`my_script` in the above example) should -exit with code 0 if the current source code is good, and exit with a -code between 1 and 127 (inclusive), except 125, if the current -source code is bad. +Note that the script (`my_script` in the above example) should exit +with code 0 if the current source code is good/old, and exit with a +code between 1 and 127 (inclusive), except 125, if the current source +code is bad/new. Any other exit code will abort the bisect process. It should be noted -that a program that terminates via "exit(-1)" leaves $? = 255, (see the -exit(3) manual page), as the value is chopped with "& 0377". +that a program that terminates via `exit(-1)` leaves $? = 255, (see the +exit(3) manual page), as the value is chopped with `& 0377`. The special exit code 125 should be used when the current source code cannot be tested. If the script exits with this code, the current @@ -247,7 +255,7 @@ as the highest sensible value to use for this purpose, because 126 and 127 are used by POSIX shells to signal specific error status (127 is for command not found, 126 is for command found but not executable---these details do not matter, as they are normal errors in the script, as far as -"bisect run" is concerned). +`bisect run` is concerned). You may often find that during a bisect session you want to have temporary modifications (e.g. s/#define DEBUG 0/#define DEBUG 1/ in a @@ -260,7 +268,7 @@ next revision to test, the script can apply the patch before compiling, run the real test, and afterwards decide if the revision (possibly with the needed patch) passed the test and then rewind the tree to the pristine state. Finally the script should exit -with the status of the real test to let the "git bisect run" command loop +with the status of the real test to let the `git bisect run` command loop determine the eventual outcome of the bisect session. OPTIONS @@ -307,12 +315,12 @@ $ git bisect run ~/test.sh $ git bisect reset # quit the bisect session ------------ + -Here we use a "test.sh" custom script. In this script, if "make" +Here we use a `test.sh` custom script. In this script, if `make` fails, we skip the current commit. -"check_test_case.sh" should "exit 0" if the test case passes, -and "exit 1" otherwise. +`check_test_case.sh` should `exit 0` if the test case passes, +and `exit 1` otherwise. + -It is safer if both "test.sh" and "check_test_case.sh" are +It is safer if both `test.sh` and `check_test_case.sh` are outside the repository to prevent interactions between the bisect, make and test processes and the scripts. @@ -379,6 +387,11 @@ In this case, when 'git bisect run' finishes, bisect/bad will refer to a commit has at least one parent whose reachable graph is fully traversable in the sense required by 'git pack objects'. +Getting help +~~~~~~~~~~~~ + +Use `git bisect` to get a short usage description, and `git bisect +help` or `git bisect -h` to get a long usage description. SEE ALSO -------- diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt index 6cea7f1ce1..e6e947c808 100644 --- a/Documentation/git-blame.txt +++ b/Documentation/git-blame.txt @@ -9,7 +9,7 @@ SYNOPSIS -------- [verse] 'git blame' [-c] [-b] [-l] [--root] [-t] [-f] [-n] [-s] [-e] [-p] [-w] [--incremental] - [-L n,m | -L :fn] [-S <revs-file>] [-M] [-C] [-C] [-C] [--since=<date>] + [-L <range>] [-S <revs-file>] [-M] [-C] [-C] [-C] [--since=<date>] [--abbrev=<n>] [<rev> | --contents <file> | --reverse <rev>] [--] <file> DESCRIPTION @@ -18,7 +18,8 @@ DESCRIPTION Annotates each line in the given file with information from the revision which last modified the line. Optionally, start annotating from the given revision. -The command can also limit the range of lines annotated. +When specified one or more times, `-L` restricts annotation to the requested +lines. The origin of lines is automatically followed across whole-file renames (currently there is no option to turn the rename-following @@ -34,7 +35,8 @@ Apart from supporting file annotation, Git also supports searching the development history for when a code snippet occurred in a change. This makes it possible to track when a code snippet was added to a file, moved or copied between files, and eventually deleted or replaced. It works by searching for -a text string in the diff. A small example: +a text string in the diff. A small example of the pickaxe interface +that searches for `blame_usage`: ----------------------------------------------------------------------------- $ git log --pretty=oneline -S'blame_usage' @@ -74,6 +76,8 @@ include::blame-options.txt[] -e:: --show-email:: Show the author email instead of author name (Default: off). + This can also be controlled via the `blame.showEmail` config + option. -w:: Ignore whitespace when comparing the parent's version and @@ -102,7 +106,7 @@ This header line is followed by the following information at least once for each commit: - the author name ("author"), email ("author-mail"), time - ("author-time"), and timezone ("author-tz"); similarly + ("author-time"), and time zone ("author-tz"); similarly for committer. - the filename in the commit that the line is attributed to. - the first line of the commit log message ("summary"). @@ -130,7 +134,10 @@ SPECIFYING RANGES Unlike 'git blame' and 'git annotate' in older versions of git, the extent of the annotation can be limited to both line ranges and revision -ranges. When you are interested in finding the origin for +ranges. The `-L` option, which limits annotation to a range of lines, may be +specified multiple times. + +When you are interested in finding the origin for lines 40-60 for file `foo`, you can use the `-L` option like so (they mean the same thing -- both ask for 21 lines starting at line 40): diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index b7cb625b89..a67138a022 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -48,9 +48,10 @@ working tree to it; use "git checkout <newbranch>" to switch to the new branch. When a local branch is started off a remote-tracking branch, Git sets up the -branch so that 'git pull' will appropriately merge from +branch (specifically the `branch.<name>.remote` and `branch.<name>.merge` +configuration entries) so that 'git pull' will appropriately merge from the remote-tracking branch. This behavior may be changed via the global -`branch.autosetupmerge` configuration flag. That setting can be +`branch.autoSetupMerge` configuration flag. That setting can be overridden by using the `--track` and `--no-track` options, and changed later using `git branch --set-upstream-to`. @@ -80,7 +81,7 @@ OPTIONS `--track` or `--set-upstream`. -D:: - Delete a branch irrespective of its merged status. + Shortcut for `--delete --force`. -l:: --create-reflog:: @@ -94,13 +95,17 @@ OPTIONS --force:: Reset <branchname> to <startpoint> if <branchname> exists already. Without `-f` 'git branch' refuses to change an existing branch. + In combination with `-d` (or `--delete`), allow deleting the + branch irrespective of its merged status. In combination with + `-m` (or `--move`), allow renaming the branch even if the new + branch name already exists. -m:: --move:: Move/rename a branch and the corresponding reflog. -M:: - Move/rename a branch even if the new branch name already exists. + Shortcut for `--move --force`. --color[=<when>]:: Color branches to highlight current, local, and @@ -156,7 +161,8 @@ This option is only applicable in non-verbose mode. -t:: --track:: - When creating a new branch, set up configuration to mark the + When creating a new branch, set up `branch.<name>.remote` and + `branch.<name>.merge` configuration entries to mark the start-point branch as "upstream" from the new branch. This configuration will tell git to show the relationship between the two branches in `git status` and `git branch -v`. Furthermore, @@ -164,14 +170,14 @@ This option is only applicable in non-verbose mode. upstream when the new branch is checked out. + This behavior is the default when the start point is a remote-tracking branch. -Set the branch.autosetupmerge configuration variable to `false` if you +Set the branch.autoSetupMerge configuration variable to `false` if you want `git checkout` and `git branch` to always behave as if '--no-track' were given. Set it to `always` if you want this behavior when the start-point is either a local or remote-tracking branch. --no-track:: Do not set up "upstream" configuration, even if the - branch.autosetupmerge configuration variable is true. + branch.autoSetupMerge configuration variable is true. --set-upstream:: If specified branch does not exist yet or if `--force` has been diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt index 10fbc6a373..3105fc0720 100644 --- a/Documentation/git-cat-file.txt +++ b/Documentation/git-cat-file.txt @@ -9,8 +9,8 @@ git-cat-file - Provide content or type and size information for repository objec SYNOPSIS -------- [verse] -'git cat-file' (-t | -s | -e | -p | <type> | --textconv ) <object> -'git cat-file' (--batch | --batch-check) < <list-of-objects> +'git cat-file' (-t [--allow-unknown-type]| -s [--allow-unknown-type]| -e | -p | <type> | --textconv ) <object> +'git cat-file' (--batch | --batch-check) [--follow-symlinks] < <list-of-objects> DESCRIPTION ----------- @@ -54,7 +54,7 @@ OPTIONS --textconv:: Show the content as transformed by a textconv filter. In this case, - <object> has be of the form <treeish>:<path>, or :<path> in order + <object> has be of the form <tree-ish>:<path>, or :<path> in order to apply the filter to the content recorded in the index at <path>. --batch:: @@ -69,6 +69,79 @@ OPTIONS not be combined with any other options or arguments. See the section `BATCH OUTPUT` below for details. +--batch-all-objects:: + Instead of reading a list of objects on stdin, perform the + requested batch operation on all objects in the repository and + any alternate object stores (not just reachable objects). + Requires `--batch` or `--batch-check` be specified. Note that + the objects are visited in order sorted by their hashes. + +--buffer:: + Normally batch output is flushed after each object is output, so + that a process can interactively read and write from + `cat-file`. With this option, the output uses normal stdio + buffering; this is much more efficient when invoking + `--batch-check` on a large number of objects. + +--allow-unknown-type:: + Allow -s or -t to query broken/corrupt objects of unknown type. + +--follow-symlinks:: + With --batch or --batch-check, follow symlinks inside the + repository when requesting objects with extended SHA-1 + expressions of the form tree-ish:path-in-tree. Instead of + providing output about the link itself, provide output about + the linked-to object. If a symlink points outside the + tree-ish (e.g. a link to /foo or a root-level link to ../foo), + the portion of the link which is outside the tree will be + printed. ++ +This option does not (currently) work correctly when an object in the +index is specified (e.g. `:link` instead of `HEAD:link`) rather than +one in the tree. ++ +This option cannot (currently) be used unless `--batch` or +`--batch-check` is used. ++ +For example, consider a git repository containing: ++ +-- + f: a file containing "hello\n" + link: a symlink to f + dir/link: a symlink to ../f + plink: a symlink to ../f + alink: a symlink to /etc/passwd +-- ++ +For a regular file `f`, `echo HEAD:f | git cat-file --batch` would print ++ +-- + ce013625030ba8dba906f756967f9e9ca394464a blob 6 +-- ++ +And `echo HEAD:link | git cat-file --batch --follow-symlinks` would +print the same thing, as would `HEAD:dir/link`, as they both point at +`HEAD:f`. ++ +Without `--follow-symlinks`, these would print data about the symlink +itself. In the case of `HEAD:link`, you would see ++ +-- + 4d1ae35ba2c8ec712fa2a379db44ad639ca277bd blob 1 +-- ++ +Both `plink` and `alink` point outside the tree, so they would +respectively print: ++ +-- + symlink 4 + ../f + + symlink 11 + /etc/passwd +-- + + OUTPUT ------ If '-t' is specified, one of the <type>. @@ -86,10 +159,9 @@ BATCH OUTPUT ------------ If `--batch` or `--batch-check` is given, `cat-file` will read objects -from stdin, one per line, and print information about them. - -Each line is considered as a whole object name, and is parsed as if -given to linkgit:git-rev-parse[1]. +from stdin, one per line, and print information about them. By default, +the whole line is considered as an object, as if it were fed to +linkgit:git-rev-parse[1]. You can specify the information shown for each object by using a custom `<format>`. The `<format>` is copied literally to stdout for each @@ -110,6 +182,18 @@ newline. The available atoms are: The size, in bytes, that the object takes up on disk. See the note about on-disk sizes in the `CAVEATS` section below. +`deltabase`:: + If the object is stored as a delta on-disk, this expands to the + 40-hex sha1 of the delta base object. Otherwise, expands to the + null sha1 (40 zeroes). See `CAVEATS` below. + +`rest`:: + If this atom is used in the output string, input lines are split + at the first whitespace boundary. All characters before that + whitespace are considered to be the object name; characters + after that first run of whitespace (i.e., the "rest" of the + line) are output in place of the `%(rest)` atom. + If no format is specified, the default format is `%(objectname) %(objecttype) %(objectsize)`. @@ -137,6 +221,47 @@ the repository, then `cat-file` will ignore any custom format and print: <object> SP missing LF ------------ +If --follow-symlinks is used, and a symlink in the repository points +outside the repository, then `cat-file` will ignore any custom format +and print: + +------------ +symlink SP <size> LF +<symlink> LF +------------ + +The symlink will either be absolute (beginning with a /), or relative +to the tree root. For instance, if dir/link points to ../../foo, then +<symlink> will be ../foo. <size> is the size of the symlink in bytes. + +If --follow-symlinks is used, the following error messages will be +displayed: + +------------ +<object> SP missing LF +------------ +is printed when the initial symlink requested does not exist. + +------------ +dangling SP <size> LF +<object> LF +------------ +is printed when the initial symlink exists, but something that +it (transitive-of) points to does not. + +------------ +loop SP <size> LF +<object> LF +------------ +is printed for symlink loops (or any symlinks that +require more than 40 link resolutions to resolve). + +------------ +notdir SP <size> LF +<object> LF +------------ +is printed when, during symlink resolution, a file is used as a +directory name. CAVEATS ------- @@ -146,10 +271,11 @@ should be taken in drawing conclusions about which refs or objects are responsible for disk usage. The size of a packed non-delta object may be much larger than the size of objects which delta against it, but the choice of which object is the base and which is the delta is arbitrary -and is subject to change during a repack. Note also that multiple copies -of an object may be present in the object database; in this case, it is -undefined which copy's size will be reported. +and is subject to change during a repack. +Note also that multiple copies of an object may be present in the object +database; in this case, it is undefined which copy's size or delta base +will be reported. GIT --- diff --git a/Documentation/git-check-attr.txt b/Documentation/git-check-attr.txt index a7be80d48b..00e2aa2df2 100644 --- a/Documentation/git-check-attr.txt +++ b/Documentation/git-check-attr.txt @@ -31,8 +31,9 @@ OPTIONS Read file names from stdin instead of from the command-line. -z:: - Only meaningful with `--stdin`; paths are separated with a - NUL character instead of a linefeed character. + The output format is modified to be machine-parseable. + If `--stdin` is also given, input paths are separated + with a NUL character instead of a linefeed character. \--:: Interpret all preceding arguments as attributes and all following @@ -48,6 +49,10 @@ OUTPUT The output is of the form: <path> COLON SP <attribute> COLON SP <info> LF +unless `-z` is in effect, in which case NUL is used as delimiter: +<path> NUL <attribute> NUL <info> NUL + + <path> is the path of a file being queried, <attribute> is an attribute being queried and <info> can be either: diff --git a/Documentation/git-check-ignore.txt b/Documentation/git-check-ignore.txt index d2df487aa2..e35cd0489b 100644 --- a/Documentation/git-check-ignore.txt +++ b/Documentation/git-check-ignore.txt @@ -21,6 +21,9 @@ the exclude mechanism) that decides if the pathname is excluded or included. Later patterns within a file take precedence over earlier ones. +By default, tracked files are not shown at all since they are not +subject to exclude rules; but see `--no-index'. + OPTIONS ------- -q, --quiet:: @@ -45,6 +48,13 @@ OPTIONS not be possible to distinguish between paths which match a pattern and those which don't. +--no-index:: + Don't look in the index when undertaking the checks. This can + be used to debug why a path became tracked by e.g. `git add .` + and was not ignored by the rules as expected by the user or when + developing patterns including negation to match a path previously + added with `git add -f`. + OUTPUT ------ @@ -62,7 +72,7 @@ matching pattern, <source> is the pattern's source file, and <linenum> is the line number of the pattern within that source. If the pattern contained a `!` prefix or `/` suffix, it will be preserved in the output. <source> will be an absolute path when referring to the file -configured by `core.excludesfile`, or relative to the repository root +configured by `core.excludesFile`, or relative to the repository root when referring to `.git/info/exclude` or a per-directory exclude file. If `-z` is specified, the pathnames in the output are delimited by the diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt index a49be1bab4..9044dfaada 100644 --- a/Documentation/git-check-ref-format.txt +++ b/Documentation/git-check-ref-format.txt @@ -54,6 +54,8 @@ Git imposes the following rules on how references are named: . They cannot contain a sequence `@{`. +. They cannot be the single character `@`. + . They cannot contain a `\`. These rules make it easy for shell script based tools to parse @@ -92,8 +94,8 @@ OPTIONS Interpret <refname> as a reference name pattern for a refspec (as used with remote repositories). If this option is enabled, <refname> is allowed to contain a single `*` - in place of a one full pathname component (e.g., - `foo/*/bar` but not `foo/bar*`). + in the refspec (e.g., `foo/bar*/baz` or `foo/bar*baz/` + but not `foo/bar*/baz*`). --normalize:: Normalize 'refname' by removing any leading slash (`/`) diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index ca118ac6bf..e269fb1108 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -3,13 +3,14 @@ git-checkout(1) NAME ---- -git-checkout - Checkout a branch or paths to the working tree +git-checkout - Switch branches or restore working tree files SYNOPSIS -------- [verse] 'git checkout' [-q] [-f] [-m] [<branch>] -'git checkout' [-q] [-f] [-m] [--detach] [<commit>] +'git checkout' [-q] [-f] [-m] --detach [<branch>] +'git checkout' [-q] [-f] [-m] [--detach] <commit> 'git checkout' [-q] [-f] [-m] [[-b|-B|--orphan] <new_branch>] [<start_point>] 'git checkout' [-f|--ours|--theirs|-m|--conflict=<style>] [<tree-ish>] [--] <paths>... 'git checkout' [-p|--patch] [<tree-ish>] [--] [<paths>...] @@ -62,7 +63,7 @@ that is to say, the branch is not reset/created unless "git checkout" is successful. 'git checkout' --detach [<branch>]:: -'git checkout' <commit>:: +'git checkout' [--detach] <commit>:: Prepare to work on top of <commit>, by detaching HEAD at it (see "DETACHED HEAD" section), and updating the index and the @@ -71,10 +72,11 @@ successful. tree will be the state recorded in the commit plus the local modifications. + -Passing `--detach` forces this behavior in the case of a <branch> (without -the option, giving a branch name to the command would check out the branch, -instead of detaching HEAD at it), or the current commit, -if no <branch> is specified. +When the <commit> argument is a branch name, the `--detach` option can +be used to detach HEAD at the tip of the branch (`git checkout +<branch>` would check out that branch without detaching HEAD). ++ +Omitting <branch> detaches HEAD at the tip of the current branch. 'git checkout' [-p|--patch] [<tree-ish>] [--] <pathspec>...:: @@ -87,6 +89,10 @@ if no <branch> is specified. (i.e. commit, tag or tree) to update the index for the given paths before updating the working tree. + +'git checkout' with <paths> or `--patch` is used to restore modified or +deleted paths to their original contents from the index or replace paths +with the contents from a named <tree-ish> (most often a commit-ish). ++ The index may contain unmerged entries because of a previous failed merge. By default, if you try to check out such an entry from the index, the checkout operation will fail and nothing will be checked out. @@ -114,6 +120,21 @@ entries; instead, unmerged entries are ignored. --theirs:: When checking out paths from the index, check out stage #2 ('ours') or #3 ('theirs') for unmerged paths. ++ +Note that during `git rebase` and `git pull --rebase`, 'ours' and +'theirs' may appear swapped; `--ours` gives the version from the +branch the changes are rebased onto, while `--theirs` gives the +version from the branch that holds your work that is being rebased. ++ +This is because `rebase` is used in a workflow that treats the +history at the remote as the shared canonical one, and treats the +work done on the branch you are rebasing as the third-party work to +be integrated, and you are temporarily assuming the role of the +keeper of the canonical history during the rebase. As the keeper of +the canonical history, you need to view the history from the remote +as `ours` (i.e. "our shared canonical history"), while what you did +on your side branch as `theirs` (i.e. "one contributor's work on top +of it"). -b <new_branch>:: Create a new branch named <new_branch> and start it at @@ -142,7 +163,7 @@ explicitly give a name with '-b' in such a case. --no-track:: Do not set up "upstream" configuration, even if the - branch.autosetupmerge configuration variable is true. + branch.autoSetupMerge configuration variable is true. -l:: Create the new branch's reflog; see linkgit:git-branch[1] for @@ -208,7 +229,7 @@ the conflicted merge in the specified paths. --conflict=<style>:: The same as --merge option above, but changes the way the conflicting hunks are presented, overriding the - merge.conflictstyle configuration variable. Possible values are + merge.conflictStyle configuration variable. Possible values are "merge" (default) and "diff3" (in addition to what is shown by "merge" style, shows the original contents). @@ -223,6 +244,12 @@ This means that you can use `git checkout -p` to selectively discard edits from your current working tree. See the ``Interactive Mode'' section of linkgit:git-add[1] to learn how to operate the `--patch` mode. +--ignore-other-worktrees:: + `git checkout` refuses when the wanted ref is already checked + out by another worktree. This option makes it check the ref + out anyway. In other words, the ref can be held by more than one + worktree. + <branch>:: Branch to checkout; if it refers to a branch (i.e., a name that, when prepended with "refs/heads/", is a valid ref), then that @@ -230,8 +257,8 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. commit, your HEAD becomes "detached" and you are no longer on any branch (see below for details). + -As a special case, the `"@{-N}"` syntax for the N-th last branch -checks out the branch (instead of detaching). You may also specify +As a special case, the `"@{-N}"` syntax for the N-th last branch/commit +checks out branches (instead of detaching). You may also specify `-` which is synonymous with `"@{-1}"`. + As a further special case, you may use `"A...B"` as a shortcut for the diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index c205d2363e..1147c71da6 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -8,7 +8,8 @@ git-cherry-pick - Apply the changes introduced by some existing commits SYNOPSIS -------- [verse] -'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] <commit>... +'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] + [-S[<key-id>]] <commit>... 'git cherry-pick' --continue 'git cherry-pick' --quit 'git cherry-pick' --abort @@ -100,6 +101,10 @@ effect to your index in a row. --signoff:: Add Signed-off-by line at the end of the commit message. +-S[<key-id>]:: +--gpg-sign[=<key-id>]:: + GPG-sign commits. + --ff:: If the current HEAD is the same as the parent of the cherry-pick'ed commit, then a fast forward to this commit will @@ -126,7 +131,8 @@ effect to your index in a row. --keep-redundant-commits:: If a commit being cherry picked duplicates a commit already in the current history, it will become empty. By default these - redundant commits are ignored. This option overrides that behavior and + redundant commits cause `cherry-pick` to stop so the user can + examine the commit. This option overrides that behavior and creates an empty commit object. Implies `--allow-empty`. --strategy=<strategy>:: diff --git a/Documentation/git-cherry.txt b/Documentation/git-cherry.txt index f6c19c734d..0ea921a593 100644 --- a/Documentation/git-cherry.txt +++ b/Documentation/git-cherry.txt @@ -3,7 +3,7 @@ git-cherry(1) NAME ---- -git-cherry - Find commits not merged upstream +git-cherry - Find commits yet to be applied to upstream SYNOPSIS -------- @@ -12,47 +12,26 @@ SYNOPSIS DESCRIPTION ----------- -The changeset (or "diff") of each commit between the fork-point and <head> -is compared against each commit between the fork-point and <upstream>. -The commits are compared with their 'patch id', obtained from -the 'git patch-id' program. +Determine whether there are commits in `<head>..<upstream>` that are +equivalent to those in the range `<limit>..<head>`. -Every commit that doesn't exist in the <upstream> branch -has its id (sha1) reported, prefixed by a symbol. The ones that have -equivalent change already -in the <upstream> branch are prefixed with a minus (-) sign, and those -that only exist in the <head> branch are prefixed with a plus (+) symbol: - - __*__*__*__*__> <upstream> - / - fork-point - \__+__+__-__+__+__-__+__> <head> - - -If a <limit> has been given then the commits along the <head> branch up -to and including <limit> are not reported: - - __*__*__*__*__> <upstream> - / - fork-point - \__*__*__<limit>__-__+__> <head> - - -Because 'git cherry' compares the changeset rather than the commit id -(sha1), you can use 'git cherry' to find out if a commit you made locally -has been applied <upstream> under a different commit id. For example, -this will happen if you're feeding patches <upstream> via email rather -than pushing or pulling commits directly. +The equivalence test is based on the diff, after removing whitespace +and line numbers. git-cherry therefore detects when commits have been +"copied" by means of linkgit:git-cherry-pick[1], linkgit:git-am[1] or +linkgit:git-rebase[1]. +Outputs the SHA1 of every commit in `<limit>..<head>`, prefixed with +`-` for commits that have an equivalent in <upstream>, and `+` for +commits that do not. OPTIONS ------- -v:: - Verbose. + Show the commit subjects next to the SHA1s. <upstream>:: - Upstream branch to compare against. - Defaults to the first tracked remote branch, if available. + Upstream branch to search for equivalent commits. + Defaults to the upstream branch of HEAD. <head>:: Working branch; defaults to HEAD. @@ -60,6 +39,103 @@ OPTIONS <limit>:: Do not report commits up to (and including) limit. +EXAMPLES +-------- + +Patch workflows +~~~~~~~~~~~~~~~ + +git-cherry is frequently used in patch-based workflows (see +linkgit:gitworkflows[7]) to determine if a series of patches has been +applied by the upstream maintainer. In such a workflow you might +create and send a topic branch like this: + +------------ +$ git checkout -b topic origin/master +# work and create some commits +$ git format-patch origin/master +$ git send-email ... 00* +------------ + +Later, you can see whether your changes have been applied by saying +(still on `topic`): + +------------ +$ git fetch # update your notion of origin/master +$ git cherry -v +------------ + +Concrete example +~~~~~~~~~~~~~~~~ + +In a situation where topic consisted of three commits, and the +maintainer applied two of them, the situation might look like: + +------------ +$ git log --graph --oneline --decorate --boundary origin/master...topic +* 7654321 (origin/master) upstream tip commit +[... snip some other commits ...] +* cccc111 cherry-pick of C +* aaaa111 cherry-pick of A +[... snip a lot more that has happened ...] +| * cccc000 (topic) commit C +| * bbbb000 commit B +| * aaaa000 commit A +|/ +o 1234567 branch point +------------ + +In such cases, git-cherry shows a concise summary of what has yet to +be applied: + +------------ +$ git cherry origin/master topic +- cccc000... commit C ++ bbbb000... commit B +- aaaa000... commit A +------------ + +Here, we see that the commits A and C (marked with `-`) can be +dropped from your `topic` branch when you rebase it on top of +`origin/master`, while the commit B (marked with `+`) still needs to +be kept so that it will be sent to be applied to `origin/master`. + + +Using a limit +~~~~~~~~~~~~~ + +The optional <limit> is useful in cases where your topic is based on +other work that is not in upstream. Expanding on the previous +example, this might look like: + +------------ +$ git log --graph --oneline --decorate --boundary origin/master...topic +* 7654321 (origin/master) upstream tip commit +[... snip some other commits ...] +* cccc111 cherry-pick of C +* aaaa111 cherry-pick of A +[... snip a lot more that has happened ...] +| * cccc000 (topic) commit C +| * bbbb000 commit B +| * aaaa000 commit A +| * 0000fff (base) unpublished stuff F +[... snip ...] +| * 0000aaa unpublished stuff A +|/ +o 1234567 merge-base between upstream and topic +------------ + +By specifying `base` as the limit, you can avoid listing commits +between `base` and `topic`: + +------------ +$ git cherry origin/master topic base +- cccc000... commit C ++ bbbb000... commit B +- aaaa000... commit A +------------ + + SEE ALSO -------- linkgit:git-patch-id[1] diff --git a/Documentation/git-clean.txt b/Documentation/git-clean.txt index 89979228b1..641681f61a 100644 --- a/Documentation/git-clean.txt +++ b/Documentation/git-clean.txt @@ -34,8 +34,12 @@ OPTIONS -f:: --force:: If the Git configuration variable clean.requireForce is not set - to false, 'git clean' will refuse to run unless given -f, -n or - -i. + to false, 'git clean' will refuse to delete files or directories + unless given -f, -n or -i. Git will refuse to delete directories + with .git sub directory or file unless a second -f + is given. This affects also git submodules where the storage area + of the removed submodule under .git/modules/ is not removed until + -f is given twice. -i:: --interactive:: @@ -98,7 +102,7 @@ clean:: filter by pattern:: This shows the files and directories to be deleted and issues an - "Input ignore patterns>>" prompt. You can input space-seperated + "Input ignore patterns>>" prompt. You can input space-separated patterns to exclude files and directories from deletion. E.g. "*.c *.h" will excludes files end with ".c" and ".h" from deletion. When you are satisfied with the filtered result, press diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 450f158779..f1f2a3f7ea 100644 --- a/Documentation/git-clone.txt +++ b/Documentation/git-clone.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git clone' [--template=<template_directory>] [-l] [-s] [--no-hardlinks] [-q] [-n] [--bare] [--mirror] [-o <name>] [-b <name>] [-u <upload-pack>] [--reference <repository>] - [--separate-git-dir <git dir>] + [--dissociate] [--separate-git-dir <git dir>] [--depth <depth>] [--[no-]single-branch] [--recursive | --recurse-submodules] [--] <repository> [<directory>] @@ -55,15 +55,12 @@ repository is specified as a URL, then this flag is ignored (and we never use the local optimizations). Specifying `--no-local` will override the default when `/path/to/repo` is given, using the regular Git transport instead. -+ -To force copying instead of hardlinking (which may be desirable if you -are trying to make a back-up of your repository), but still avoid the -usual "Git aware" transport mechanism, `--no-hardlinks` can be used. --no-hardlinks:: - Optimize the cloning process from a repository on a - local filesystem by copying files under `.git/objects` - directory. + Force the cloning process from a repository on a local + filesystem to copy the files under the `.git/objects` + directory instead of using hardlinks. This may be desirable + if you are trying to make a back-up of your repository. --shared:: -s:: @@ -101,7 +98,14 @@ objects from the source repository into a pack in the cloned repository. require fewer objects to be copied from the repository being cloned, reducing network and local storage costs. + -*NOTE*: see the NOTE for the `--shared` option. +*NOTE*: see the NOTE for the `--shared` option, and also the +`--dissociate` option. + +--dissociate:: + Borrow the objects from reference repositories specified + with the `--reference` options only to reduce network + transfer and stop borrowing from them after a clone is made + by making necessary local copies of borrowed objects. --quiet:: -q:: @@ -181,12 +185,7 @@ objects from the source repository into a pack in the cloned repository. --depth <depth>:: Create a 'shallow' clone with a history truncated to the - specified number of revisions. A shallow repository has a - number of limitations (you cannot clone or fetch from - it, nor push from nor into it), but is adequate if you - are only interested in the recent history of a large project - with a long history, and would want to send in fixes - as patches. + specified number of revisions. --[no-]single-branch:: Clone only the history leading to the tip of a single branch, @@ -213,7 +212,7 @@ objects from the source repository into a pack in the cloned repository. --separate-git-dir=<git dir>:: Instead of placing the cloned repository where it is supposed to be, place the cloned repository at the specified directory, - then make a filesytem-agnostic Git symbolic link to there. + then make a filesystem-agnostic Git symbolic link to there. The result is Git repository can be separated from working tree. diff --git a/Documentation/git-column.txt b/Documentation/git-column.txt index 5d6f1cc464..03d18465d4 100644 --- a/Documentation/git-column.txt +++ b/Documentation/git-column.txt @@ -43,11 +43,6 @@ OPTIONS --padding=<N>:: The number of spaces between columns. One space by default. - -Author ------- -Written by Nguyen Thai Ngoc Duy <pclouds@gmail.com> - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-commit-tree.txt b/Documentation/git-commit-tree.txt index cafdc9642d..f5f2a8d326 100644 --- a/Documentation/git-commit-tree.txt +++ b/Documentation/git-commit-tree.txt @@ -55,8 +55,13 @@ OPTIONS from the standard input. -S[<keyid>]:: +--gpg-sign[=<keyid>]:: GPG-sign commit. +--no-gpg-sign:: + Countermand `commit.gpgSign` configuration variable that is + set to force each and every commit to be signed. + Commit Information ------------------ diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt index 1a7616c73a..904dafa0f7 100644 --- a/Documentation/git-commit.txt +++ b/Documentation/git-commit.txt @@ -13,7 +13,7 @@ SYNOPSIS [-F <file> | -m <msg>] [--reset-author] [--allow-empty] [--allow-empty-message] [--no-verify] [-e] [--author=<author>] [--date=<date>] [--cleanup=<mode>] [--[no-]status] - [-i | -o] [-S[<keyid>]] [--] [<file>...] + [-i | -o] [-S[<key-id>]] [--] [<file>...] DESCRIPTION ----------- @@ -94,7 +94,7 @@ OPTIONS --reset-author:: When used with -C/-c/--amend options, or when committing after a a conflicting cherry-pick, declare that the authorship of the - resulting commit now belongs of the committer. This also renews + resulting commit now belongs to the committer. This also renews the author timestamp. --short:: @@ -176,16 +176,22 @@ OPTIONS --cleanup=<mode>:: This option determines how the supplied commit message should be cleaned up before committing. The '<mode>' can be `strip`, - `whitespace`, `verbatim`, or `default`. + `whitespace`, `verbatim`, `scissors` or `default`. + -- strip:: - Strip leading and trailing empty lines, trailing whitespace, and - #commentary and collapse consecutive empty lines. + Strip leading and trailing empty lines, trailing whitespace, + commentary and collapse consecutive empty lines. whitespace:: Same as `strip` except #commentary is not removed. verbatim:: Do not change the message at all. +scissors:: + Same as `whitespace`, except that everything from (and + including) the line + "`# ------------------------ >8 ------------------------`" + is truncated if the message is to be edited. "`#`" can be + customized with core.commentChar. default:: Same as `strip` if the message is to be edited. Otherwise `whitespace`. @@ -244,9 +250,10 @@ FROM UPSTREAM REBASE" section in linkgit:git-rebase[1].) -o:: --only:: - Make a commit only from the paths specified on the + Make a commit by taking the updated working tree contents + of the paths specified on the command line, disregarding any contents that have been - staged so far. This is the default mode of operation of + staged for other paths. This is the default mode of operation of 'git commit' if any paths are given on the command line, in which case this option can be omitted. If this option is specified together with '--amend', then @@ -275,8 +282,15 @@ configuration variable documented in linkgit:git-config[1]. --verbose:: Show unified diff between the HEAD commit and what would be committed at the bottom of the commit message - template. Note that this diff output doesn't have its - lines prefixed with '#'. + template to help the user describe the commit by reminding + what changes the commit has. + Note that this diff output doesn't have its + lines prefixed with '#'. This diff will not be a part + of the commit message. ++ +If specified twice, show in addition the unified diff between +what would be committed and the worktree files, i.e. the unstaged +changes to tracked files. -q:: --quiet:: @@ -302,6 +316,10 @@ configuration variable documented in linkgit:git-config[1]. --gpg-sign[=<keyid>]:: GPG-sign commit. +--no-gpg-sign:: + Countermand `commit.gpgSign` configuration variable that is + set to force each and every commit to be signed. + \--:: Do not interpret any more arguments as options. diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt index 2dbe486eb1..2608ca74ac 100644 --- a/Documentation/git-config.txt +++ b/Documentation/git-config.txt @@ -14,12 +14,13 @@ SYNOPSIS 'git config' [<file-option>] [type] --replace-all name value [value_regex] 'git config' [<file-option>] [type] [-z|--null] --get name [value_regex] 'git config' [<file-option>] [type] [-z|--null] --get-all name [value_regex] -'git config' [<file-option>] [type] [-z|--null] --get-regexp name_regex [value_regex] +'git config' [<file-option>] [type] [-z|--null] [--name-only] --get-regexp name_regex [value_regex] +'git config' [<file-option>] [type] [-z|--null] --get-urlmatch name URL 'git config' [<file-option>] --unset name [value_regex] 'git config' [<file-option>] --unset-all name [value_regex] 'git config' [<file-option>] --rename-section old_name new_name 'git config' [<file-option>] --remove-section name -'git config' [<file-option>] [-z|--null] -l | --list +'git config' [<file-option>] [-z|--null] [--name-only] -l | --list 'git config' [<file-option>] --get-color name [default] 'git config' [<file-option>] --get-colorbool name [stdout-is-tty] 'git config' [<file-option>] -e | --edit @@ -95,6 +96,14 @@ OPTIONS in which section and variable names are lowercased, but subsection names are not. +--get-urlmatch name URL:: + When given a two-part name section.key, the value for + section.<url>.key whose <url> part matches the best to the + given URL is returned (if no such key exists, the value for + section.key is used as a fallback). When given just the + section as name, do so for all the keys in the section and + list them. + --global:: For writing options: write to global `~/.gitconfig` file rather than the repository `.git/config`, write to @@ -150,7 +159,7 @@ See also <<FILES>>. -l:: --list:: - List all variables set in config file. + List all variables set in config file, along with their values. --bool:: 'git config' will ensure that the output is "true" or "false" @@ -181,6 +190,10 @@ See also <<FILES>>. output without getting confused e.g. by values that contain line breaks. +--name-only:: + Output only the names of config variables for `--list` or + `--get-regexp`. + --get-colorbool name [stdout-is-tty]:: Find the color setting for `name` (e.g. `color.diff`) and output @@ -247,7 +260,7 @@ All writing options will per default write to the repository specific configuration file. Note that this also affects options like '--replace-all' and '--unset'. *'git config' will only ever change one file at a time*. -You can override these rules either by command line options or by environment +You can override these rules either by command-line options or by environment variables. The '--global' and the '--system' options will limit the file used to the global or system-wide file respectively. The GIT_CONFIG environment variable has a similar effect, but you can specify any filename you want. @@ -295,6 +308,13 @@ Given a .git/config like this: gitproxy=proxy-command for kernel.org gitproxy=default-proxy ; for all the rest + ; HTTP + [http] + sslVerify + [http "https://weak.example.com"] + sslVerify = false + cookieFile = /tmp/cookie.txt + you can set the filemode to true with ------------ @@ -380,6 +400,19 @@ RESET=$(git config --get-color "" "reset") echo "${WS}your whitespace color or blue reverse${RESET}" ------------ +For URLs in `https://weak.example.com`, `http.sslVerify` is set to +false, while it is set to `true` for all others: + +------------ +% git config --bool --get-urlmatch http.sslverify https://good.example.com +true +% git config --bool --get-urlmatch http.sslverify https://weak.example.com +false +% git config --get-urlmatch http https://weak.example.com +http.cookieFile /tmp/cookie.txt +http.sslverify false +------------ + include::config.txt[] GIT diff --git a/Documentation/git-count-objects.txt b/Documentation/git-count-objects.txt index b300e846f1..2ff35683e5 100644 --- a/Documentation/git-count-objects.txt +++ b/Documentation/git-count-objects.txt @@ -33,8 +33,8 @@ size-pack: disk space consumed by the packs, in KiB (unless -H is specified) prune-packable: the number of loose objects that are also present in the packs. These objects could be pruned using `git prune-packed`. + -garbage: the number of files in object database that are not valid -loose objects nor valid packs +garbage: the number of files in object database that are neither valid loose +objects nor valid packs + size-garbage: disk space consumed by garbage files, in KiB (unless -H is specified) diff --git a/Documentation/git-credential-cache--daemon.txt b/Documentation/git-credential-cache--daemon.txt index d15db42d43..7051c6bdf8 100644 --- a/Documentation/git-credential-cache--daemon.txt +++ b/Documentation/git-credential-cache--daemon.txt @@ -8,7 +8,7 @@ git-credential-cache--daemon - Temporarily store user credentials in memory SYNOPSIS -------- [verse] -git credential-cache--daemon <socket> +git credential-cache--daemon [--debug] <socket> DESCRIPTION ----------- @@ -21,6 +21,10 @@ for `git-credential-cache` clients. Clients may store and retrieve credentials. Each credential is held for a timeout specified by the client; once no credentials are held, the daemon exits. +If the `--debug` option is specified, the daemon does not close its +stderr stream, and may output extra diagnostics to it even after it has +begun listening for clients. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-credential-store.txt b/Documentation/git-credential-store.txt index 8481cae70e..e3c8f276b1 100644 --- a/Documentation/git-credential-store.txt +++ b/Documentation/git-credential-store.txt @@ -29,12 +29,43 @@ linkgit:gitcredentials[7] or `EXAMPLES` below. OPTIONS ------- ---store=<path>:: +--file=<path>:: - Use `<path>` to store credentials. The file will have its + Use `<path>` to lookup and store credentials. The file will have its filesystem permissions set to prevent other users on the system from reading it, but will not be encrypted or otherwise - protected. Defaults to `~/.git-credentials`. + protected. If not specified, credentials will be searched for from + `~/.git-credentials` and `$XDG_CONFIG_HOME/git/credentials`, and + credentials will be written to `~/.git-credentials` if it exists, or + `$XDG_CONFIG_HOME/git/credentials` if it exists and the former does + not. See also <<FILES>>. + +[[FILES]] +FILES +----- + +If not set explicitly with '--file', there are two files where +git-credential-store will search for credentials in order of precedence: + +~/.git-credentials:: + User-specific credentials file. + +$XDG_CONFIG_HOME/git/credentials:: + Second user-specific credentials file. If '$XDG_CONFIG_HOME' is not set + or empty, `$HOME/.config/git/credentials` will be used. Any credentials + stored in this file will not be used if `~/.git-credentials` has a + matching credential as well. It is a good idea not to create this file + if you sometimes use older versions of Git that do not support it. + +For credential lookups, the files are read in the order given above, with the +first matching credential found taking precedence over credentials found in +files further down the list. + +Credential storage will by default write to the first existing file in the +list. If none of these files exist, `~/.git-credentials` will be created and +written to. + +When erasing credentials, matching credentials will be erased from all files. EXAMPLES -------- diff --git a/Documentation/git-credential.txt b/Documentation/git-credential.txt index 7da0f13a5c..b211440373 100644 --- a/Documentation/git-credential.txt +++ b/Documentation/git-credential.txt @@ -20,7 +20,7 @@ usernames and passwords. The git-credential command exposes this interface to scripts which may want to retrieve, store, or prompt for credentials in the same manner as Git. The design of this scriptable interface models the internal C API; see -link:technical/api-credentials.txt[the Git credential API] for more +link:technical/api-credentials.html[the Git credential API] for more background on the concepts. git-credential takes an "action" option on the command-line (one of diff --git a/Documentation/git-cvsimport.txt b/Documentation/git-cvsimport.txt index d1bcda28f4..00a0679a28 100644 --- a/Documentation/git-cvsimport.txt +++ b/Documentation/git-cvsimport.txt @@ -21,8 +21,8 @@ DESCRIPTION *WARNING:* `git cvsimport` uses cvsps version 2, which is considered deprecated; it does not work with cvsps version 3 and later. If you are performing a one-shot import of a CVS repository consider using -link:http://cvs2svn.tigris.org/cvs2git.html[cvs2git] or -link:https://github.com/BartMassey/parsecvs[parsecvs]. +http://cvs2svn.tigris.org/cvs2git.html[cvs2git] or +https://github.com/BartMassey/parsecvs[parsecvs]. Imports a CVS repository into Git. It will either create a new repository, or incrementally import into an existing one. @@ -144,7 +144,7 @@ This option can be used several times to provide several detection regexes. CVS by default uses the Unix username when writing its commit logs. Using this option and an author-conv-file maps the name recorded in CVS to author name, e-mail and - optional timezone: + optional time zone: + --------- exon=Andreas Ericsson <ae@op5.se> @@ -154,7 +154,7 @@ This option can be used several times to provide several detection regexes. + 'git cvsimport' will make it appear as those authors had their GIT_AUTHOR_NAME and GIT_AUTHOR_EMAIL set properly -all along. If a timezone is specified, GIT_AUTHOR_DATE will +all along. If a time zone is specified, GIT_AUTHOR_DATE will have the corresponding offset applied. + For convenience, this data is saved to `$GIT_DIR/cvs-authors` @@ -219,7 +219,7 @@ Problems related to tags: * Multiple tags on the same revision are not imported. If you suspect that any of these issues may apply to the repository you -want to imort, consider using cvs2git: +want to import, consider using cvs2git: * cvs2git (part of cvs2svn), `http://subversion.apache.org/` diff --git a/Documentation/git-cvsserver.txt b/Documentation/git-cvsserver.txt index 472f5cbd07..db4d7a917c 100644 --- a/Documentation/git-cvsserver.txt +++ b/Documentation/git-cvsserver.txt @@ -110,7 +110,7 @@ to allow writes to, for example: authdb = /etc/cvsserver/passwd ------ -The format of these files is username followed by the crypted password, +The format of these files is username followed by the encrypted password, for example: ------ @@ -154,7 +154,7 @@ with CVS_SERVER (and shouldn't) as 'git-shell' understands `cvs` to mean [gitcvs] enabled=1 # optional for debugging - logfile=/path/to/logfile + logFile=/path/to/logfile ------ Note: you need to ensure each user that is going to invoke 'git-cvsserver' has @@ -254,14 +254,14 @@ Configuring database backend its documentation if changing these variables, especially about `DBI->connect()`. -gitcvs.dbname:: +gitcvs.dbName:: Database name. The exact meaning depends on the selected database driver, for SQLite this is a filename. Supports variable substitution (see below). May not contain semicolons (`;`). Default: '%Ggitcvs.%m.sqlite' -gitcvs.dbdriver:: +gitcvs.dbDriver:: Used DBI driver. You can specify any available driver for this here, but it might not work. cvsserver is tested with 'DBD::SQLite', reported to work with @@ -271,12 +271,12 @@ gitcvs.dbdriver:: Default: 'SQLite' gitcvs.dbuser:: - Database user. Only useful if setting `dbdriver`, since + Database user. Only useful if setting `dbDriver`, since SQLite has no concept of database users. Supports variable substitution (see below). -gitcvs.dbpass:: - Database password. Only useful if setting `dbdriver`, since +gitcvs.dbPass:: + Database password. Only useful if setting `dbDriver`, since SQLite has no concept of database passwords. gitcvs.dbTableNamePrefix:: @@ -288,7 +288,7 @@ All variables can also be set per access method, see <<configaccessmethod,above> Variable substitution ^^^^^^^^^^^^^^^^^^^^^ -In `dbdriver` and `dbuser` you can use the following variables: +In `dbDriver` and `dbUser` you can use the following variables: %G:: Git directory name @@ -413,16 +413,16 @@ about end-of-line conversion. Alternatively, if `gitcvs.usecrlfattr` config is not enabled or the attributes do not allow automatic detection for a filename, then -the server uses the `gitcvs.allbinary` config for the default setting. -If `gitcvs.allbinary` is set, then file not otherwise +the server uses the `gitcvs.allBinary` config for the default setting. +If `gitcvs.allBinary` is set, then file not otherwise specified will default to '-kb' mode. Otherwise the '-k' mode -is left blank. But if `gitcvs.allbinary` is set to "guess", then +is left blank. But if `gitcvs.allBinary` is set to "guess", then the correct '-k' mode will be guessed based on the contents of the file. For best consistency with 'cvs', it is probably best to override the defaults by setting `gitcvs.usecrlfattr` to true, -and `gitcvs.allbinary` to "guess". +and `gitcvs.allBinary` to "guess". Dependencies ------------ diff --git a/Documentation/git-daemon.txt b/Documentation/git-daemon.txt index 223f731523..a69b3616ec 100644 --- a/Documentation/git-daemon.txt +++ b/Documentation/git-daemon.txt @@ -169,7 +169,7 @@ Git configuration files in that directory are readable by `<user>`. --forbid-override=<service>:: Allow/forbid overriding the site-wide default with per repository configuration. By default, all the services - are overridable. + may be overridden. --[no-]informative-errors:: When informative errors are turned on, git-daemon will report @@ -184,7 +184,7 @@ Git configuration files in that directory are readable by `<user>`. Every time a client connects, first run an external command specified by the <path> with service name (e.g. "upload-pack"), path to the repository, hostname (%H), canonical hostname - (%CH), ip address (%IP), and tcp port (%P) as its command line + (%CH), IP address (%IP), and TCP port (%P) as its command-line arguments. The external command can decide to decline the service by exiting with a non-zero status (or to allow it by exiting with a zero status). It can also look at the $REMOTE_ADDR @@ -204,7 +204,7 @@ SERVICES -------- These services can be globally enabled/disabled using the -command line options of this command. If a finer-grained +command-line options of this command. If finer-grained control is desired (e.g. to allow 'git archive' to be run against only in a few selected repositories the daemon serves), the per-repository configuration file can be used to enable or diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt index 9439cd6d56..c8f28c8c86 100644 --- a/Documentation/git-describe.txt +++ b/Documentation/git-describe.txt @@ -3,13 +3,13 @@ git-describe(1) NAME ---- -git-describe - Show the most recent tag that is reachable from a commit +git-describe - Describe a commit using the most recent tag reachable from it SYNOPSIS -------- [verse] -'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] <committish>... +'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] [<commit-ish>...] 'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] --dirty[=<mark>] DESCRIPTION @@ -26,8 +26,8 @@ see the -a and -s options to linkgit:git-tag[1]. OPTIONS ------- -<committish>...:: - Committish object names to describe. +<commit-ish>...:: + Commit-ish object names to describe. Defaults to HEAD if omitted. --dirty[=<mark>]:: Describe the working tree. @@ -57,7 +57,7 @@ OPTIONS --candidates=<n>:: Instead of considering only the 10 most recent tags as - candidates to describe the input committish consider + candidates to describe the input commit-ish consider up to <n> candidates. Increasing <n> above 10 will take slightly longer but may produce a more accurate result. An <n> of 0 will cause only exact matches to be output. @@ -145,7 +145,7 @@ be sufficient to disambiguate these commits. SEARCH STRATEGY --------------- -For each committish supplied, 'git describe' will first look for +For each commit-ish supplied, 'git describe' will first look for a tag which tags exactly that commit. Annotated tags will always be preferred over lightweight tags, and tags with newer dates will always be preferred over tags with older dates. If an exact match @@ -154,12 +154,12 @@ is found, its name will be output and searching will stop. If an exact match was not found, 'git describe' will walk back through the commit history to locate an ancestor commit which has been tagged. The ancestor's tag will be output along with an -abbreviation of the input committish's SHA-1. If '--first-parent' was +abbreviation of the input commit-ish's SHA-1. If '--first-parent' was specified then the walk will only consider the first parent of each commit. If multiple tags were found during the walk then the tag which -has the fewest commits different from the input committish will be +has the fewest commits different from the input commit-ish will be selected and output. Here fewest commits different is defined as the number of commits which would be shown by `git log tag..input` will be the smallest number of commits possible. diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index 78d6d50489..bbab35fcaf 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -28,10 +28,15 @@ two blob objects, or changes between two files on disk. words, the differences are what you _could_ tell Git to further add to the index but you still haven't. You can stage these changes by using linkgit:git-add[1]. -+ -If exactly two paths are given and at least one points outside -the current repository, 'git diff' will compare the two files / -directories. This behavior can be forced by --no-index. + +'git diff' --no-index [--options] [--] [<path>...]:: + + This form is to compare the given two paths on the + filesystem. You can omit the `--no-index` option when + running the command in a working tree controlled by Git and + at least one of the paths points outside the working tree, + or when running the command outside a working tree + controlled by Git. 'git diff' [--options] --cached [<commit>] [--] [<path>...]:: @@ -39,7 +44,7 @@ directories. This behavior can be forced by --no-index. commit relative to the named <commit>. Typically you would want comparison with the latest commit, so if you do not give <commit>, it defaults to HEAD. - If HEAD does not exist (e.g. unborned branches) and + If HEAD does not exist (e.g. unborn branches) and <commit> is not given, it shows all staged changes. --staged is a synonym of --cached. @@ -153,8 +158,8 @@ $ git diff --name-status <2> $ git diff arch/i386 include/asm-i386 <3> ------------ + -<1> Show only modification, rename and copy, but not addition -nor deletion. +<1> Show only modification, rename, and copy, but not addition +or deletion. <2> Show only names and the nature of change, but not actual diff output. <3> Limit diff output to named subtrees. diff --git a/Documentation/git-difftool.txt b/Documentation/git-difftool.txt index 11887e63a0..333cf6ff91 100644 --- a/Documentation/git-difftool.txt +++ b/Documentation/git-difftool.txt @@ -91,6 +91,15 @@ instead. `--no-symlinks` is the default on Windows. the default diff tool will be read from the configured `diff.guitool` variable instead of `diff.tool`. +--[no-]trust-exit-code:: + 'git-difftool' invokes a diff tool individually on each file. + Errors reported by the diff tool are ignored by default. + Use `--trust-exit-code` to make 'git-difftool' exit when an + invoked diff tool returns a non-zero exit code. ++ +'git-difftool' will forward the exit code of the invoked tool when +'--trust-exit-code' is used. + See linkgit:git-diff[1] for the full list of supported options. CONFIG VARIABLES @@ -116,6 +125,11 @@ See the `--tool=<tool>` option above for more details. difftool.prompt:: Prompt before each invocation of the diff tool. +difftool.trustExitCode:: + Exit difftool if the invoked diff tool returns a non-zero exit status. ++ +See the `--trust-exit-code` option above for more details. + SEE ALSO -------- linkgit:git-diff[1]:: diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt index 85f1f30fdf..ed57c684db 100644 --- a/Documentation/git-fast-export.txt +++ b/Documentation/git-fast-export.txt @@ -67,17 +67,17 @@ produced incorrect results if you gave these options. have been completed, or to save the marks table across incremental runs. As <file> is only opened and truncated at completion, the same path can also be safely given to - \--import-marks. + --import-marks. The file will not be written if no new object has been marked/exported. --import-marks=<file>:: Before processing any input, load the marks specified in <file>. The input file must exist, must be readable, and - must use the same format as produced by \--export-marks. + must use the same format as produced by --export-marks. + Any commits that have already been marked will not be exported again. -If the backend uses a similar \--import-marks file, this allows for +If the backend uses a similar --import-marks file, this allows for incremental bidirectional exporting of the repository by keeping the marks the same across runs. @@ -105,6 +105,15 @@ marks the same across runs. in the commit (as opposed to just listing the files which are different from the commit's first parent). +--anonymize:: + Anonymize the contents of the repository while still retaining + the shape of the history and stored tree. See the section on + `ANONYMIZING` below. + +--refspec:: + Apply the specified refspec to each ref exported. Multiple of them can + be specified. + [<git-rev-list-args>...]:: A list of arguments, acceptable to 'git rev-parse' and 'git rev-list', that specifies the specific objects and references @@ -137,6 +146,62 @@ referenced by that revision range contains the string 'refs/heads/master'. +ANONYMIZING +----------- + +If the `--anonymize` option is given, git will attempt to remove all +identifying information from the repository while still retaining enough +of the original tree and history patterns to reproduce some bugs. The +goal is that a git bug which is found on a private repository will +persist in the anonymized repository, and the latter can be shared with +git developers to help solve the bug. + +With this option, git will replace all refnames, paths, blob contents, +commit and tag messages, names, and email addresses in the output with +anonymized data. Two instances of the same string will be replaced +equivalently (e.g., two commits with the same author will have the same +anonymized author in the output, but bear no resemblance to the original +author string). The relationship between commits, branches, and tags is +retained, as well as the commit timestamps (but the commit messages and +refnames bear no resemblance to the originals). The relative makeup of +the tree is retained (e.g., if you have a root tree with 10 files and 3 +trees, so will the output), but their names and the contents of the +files will be replaced. + +If you think you have found a git bug, you can start by exporting an +anonymized stream of the whole repository: + +--------------------------------------------------- +$ git fast-export --anonymize --all >anon-stream +--------------------------------------------------- + +Then confirm that the bug persists in a repository created from that +stream (many bugs will not, as they really do depend on the exact +repository contents): + +--------------------------------------------------- +$ git init anon-repo +$ cd anon-repo +$ git fast-import <../anon-stream +$ ... test your bug ... +--------------------------------------------------- + +If the anonymized repository shows the bug, it may be worth sharing +`anon-stream` along with a regular bug report. Note that the anonymized +stream compresses very well, so gzipping it is encouraged. If you want +to examine the stream to see that it does not contain any private data, +you can peruse it directly before sending. You may also want to try: + +--------------------------------------------------- +$ perl -pe 's/\d+/X/g' <anon-stream | sort -u | less +--------------------------------------------------- + +which shows all of the unique lines (with numbers converted to "X", to +collapse "User 0", "User 1", etc into "User X"). This produces a much +smaller output, and it is usually easy to quickly confirm that there is +no private data in the stream. + + Limitations ----------- @@ -144,6 +209,10 @@ Since 'git fast-import' cannot tag trees, you will not be able to export the linux.git repository completely, as it contains a tag referencing a tree instead of a commit. +SEE ALSO +-------- +linkgit:git-fast-import[1] + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index bf1a02a80d..66910aa2fa 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -42,19 +42,19 @@ OPTIONS --quiet:: Disable all non-fatal output, making fast-import silent when it is successful. This option disables the output shown by - \--stats. + --stats. --stats:: Display some basic statistics about the objects fast-import has created, the packfiles they were stored into, and the memory used by fast-import during this run. Showing this output - is currently the default, but can be disabled with \--quiet. + is currently the default, but can be disabled with --quiet. Options for Frontends ~~~~~~~~~~~~~~~~~~~~~ --cat-blob-fd=<fd>:: - Write responses to `cat-blob` and `ls` queries to the + Write responses to `get-mark`, `cat-blob`, and `ls` queries to the file descriptor <fd> instead of `stdout`. Allows `progress` output intended for the end-user to be separated from other output. @@ -81,12 +81,12 @@ Locations of Marks Files have been completed, or to save the marks table across incremental runs. As <file> is only opened and truncated at checkpoint (or completion) the same path can also be - safely given to \--import-marks. + safely given to --import-marks. --import-marks=<file>:: Before processing any input, load the marks specified in <file>. The input file must exist, must be readable, and - must use the same format as produced by \--export-marks. + must use the same format as produced by --export-marks. Multiple options may be supplied to import more than one set of marks. If a mark is defined to different values, the last file wins. @@ -179,8 +179,8 @@ fast-forward update, fast-import will skip updating that ref and instead prints a warning message. fast-import will always attempt to update all branch refs, and does not stop on the first failure. -Branch updates can be forced with \--force, but it's recommended that -this only be used on an otherwise quiet repository. Using \--force +Branch updates can be forced with --force, but it's recommended that +this only be used on an otherwise quiet repository. Using --force is not necessary for an initial import into an empty repository. @@ -231,11 +231,11 @@ Date Formats ~~~~~~~~~~~~ The following date formats are supported. A frontend should select the format it will use for this import by passing the format name -in the \--date-format=<fmt> command line option. +in the --date-format=<fmt> command-line option. `raw`:: This is the Git native format and is `<time> SP <offutc>`. - It is also fast-import's default format, if \--date-format was + It is also fast-import's default format, if --date-format was not specified. + The time of the event is specified by `<time>` as the number of @@ -251,7 +251,7 @@ advisement to help formatting routines display the timestamp. If the local offset is not available in the source material, use ``+0000'', or the most common local offset. For example many organizations have a CVS repository which has only ever been accessed -by users who are located in the same location and timezone. In this +by users who are located in the same location and time zone. In this case a reasonable offset from UTC could be assumed. + Unlike the `rfc2822` format, this format is very strict. Any @@ -271,7 +271,7 @@ the malformed string. There are also some types of malformed strings which Git will parse wrong, and yet consider valid. Seriously malformed strings will be rejected. + -Unlike the `raw` format above, the timezone/UTC offset information +Unlike the `raw` format above, the time zone/UTC offset information contained in an RFC 2822 date string is used to adjust the date value to UTC prior to storage. Therefore it is important that this information be as accurate as possible. @@ -287,13 +287,13 @@ format, or its format is easily convertible to it, as there is no ambiguity in parsing. `now`:: - Always use the current time and timezone. The literal + Always use the current time and time zone. The literal `now` must always be supplied for `<when>`. + -This is a toy format. The current time and timezone of this system +This is a toy format. The current time and time zone of this system is always copied into the identity string at the time it is being created by fast-import. There is no way to specify a different time or -timezone. +time zone. + This particular format is supplied as it's short to implement and may be useful to a process that wants to create a new commit @@ -348,7 +348,12 @@ and control the current import process. More detailed discussion `done`:: Marks the end of the stream. This command is optional unless the `done` feature was requested using the - `--done` command line option or `feature done` command. + `--done` command-line option or `feature done` command. + +`get-mark`:: + Causes fast-import to print the SHA-1 corresponding to a mark + to the file descriptor set with `--cat-blob-fd`, or `stdout` if + unspecified. `cat-blob`:: Causes fast-import to print a blob in 'cat-file --batch' @@ -361,8 +366,8 @@ and control the current import process. More detailed discussion `--cat-blob-fd` or `stdout` if unspecified. `feature`:: - Require that fast-import supports the specified feature, or - abort if it does not. + Enable the specified feature. This requires that fast-import + supports the specified feature, and aborts if it does not. `option`:: Specify any of the options listed under OPTIONS that do not @@ -380,8 +385,8 @@ change to the project. ('author' (SP <name>)? SP LT <email> GT SP <when> LF)? 'committer' (SP <name>)? SP LT <email> GT SP <when> LF data - ('from' SP <committish> LF)? - ('merge' SP <committish> LF)? + ('from' SP <commit-ish> LF)? + ('merge' SP <commit-ish> LF)? (filemodify | filedelete | filecopy | filerename | filedeleteall | notemodify)* LF? .... @@ -437,7 +442,7 @@ the email address from the other fields in the line. Note that of bytes, except `LT`, `GT` and `LF`. `<name>` is typically UTF-8 encoded. The time of the change is specified by `<when>` using the date format -that was selected by the \--date-format=<fmt> command line option. +that was selected by the --date-format=<fmt> command-line option. See ``Date Formats'' above for the set of supported formats, and their syntax. @@ -460,9 +465,9 @@ as the current commit on that branch is automatically assumed to be the first ancestor of the new commit. As `LF` is not valid in a Git refname or SHA-1 expression, no -quoting or escaping syntax is supported within `<committish>`. +quoting or escaping syntax is supported within `<commit-ish>`. -Here `<committish>` is any of the following: +Here `<commit-ish>` is any of the following: * The name of an existing branch already in fast-import's internal branch table. If fast-import doesn't know the name, it's treated as a SHA-1 @@ -483,6 +488,9 @@ Marks must be declared (via `mark`) before they can be used. * Any valid Git SHA-1 expression that resolves to a commit. See ``SPECIFYING REVISIONS'' in linkgit:gitrevisions[7] for details. +* The special null SHA-1 (40 zeros) specifies that the branch is to be + removed. + The special case of restarting an incremental import from the current branch value should be written as: ---- @@ -504,12 +512,8 @@ omitted when creating a new branch, the first `merge` commit will be the first ancestor of the current commit, and the branch will start out with no files. An unlimited number of `merge` commands per commit are permitted by fast-import, thereby establishing an n-way merge. -However Git's other tools never create commits with more than 15 -additional ancestors (forming a 16-way merge). For this reason -it is suggested that frontends do not use more than 15 `merge` -commands per commit; 16, if starting a new, empty branch. -Here `<committish>` is any of the commit specification expressions +Here `<commit-ish>` is any of the commit specification expressions also accepted by `from` (see above). `filemodify` @@ -601,7 +605,7 @@ be removed from the branch. See `filemodify` above for a detailed description of `<path>`. `filecopy` -^^^^^^^^^^^^ +^^^^^^^^^^ Recursively copies an existing file or subdirectory to a different location within the branch. The existing file or directory must exist. If the destination exists it will be completely replaced @@ -677,8 +681,8 @@ paths for a commit are encouraged to do so. `notemodify` ^^^^^^^^^^^^ Included in a `commit` `<notes_ref>` command to add a new note -annotating a `<committish>` or change this annotation contents. -Internally it is similar to filemodify 100644 on `<committish>` +annotating a `<commit-ish>` or change this annotation contents. +Internally it is similar to filemodify 100644 on `<commit-ish>` path (maybe split into subdirectories). It's not advised to use any other commands to write to the `<notes_ref>` tree except `filedeleteall` to delete all existing notes in this tree. @@ -691,7 +695,7 @@ External data format:: commit that is to be annotated. + .... - 'N' SP <dataref> SP <committish> LF + 'N' SP <dataref> SP <commit-ish> LF .... + Here `<dataref>` can be either a mark reference (`:<idnum>`) @@ -704,13 +708,13 @@ Inline data format:: command. + .... - 'N' SP 'inline' SP <committish> LF + 'N' SP 'inline' SP <commit-ish> LF data .... + See below for a detailed description of the `data` command. -In both formats `<committish>` is any of the commit specification +In both formats `<commit-ish>` is any of the commit specification expressions also accepted by `from` (see above). `mark` @@ -741,7 +745,7 @@ lightweight (non-annotated) tags see the `reset` command below. .... 'tag' SP <name> LF - 'from' SP <committish> LF + 'from' SP <commit-ish> LF 'tagger' (SP <name>)? SP LT <email> GT SP <when> LF data .... @@ -786,11 +790,11 @@ branch from an existing commit without creating a new commit. .... 'reset' SP <ref> LF - ('from' SP <committish> LF)? + ('from' SP <commit-ish> LF)? LF? .... -For a detailed description of `<ref>` and `<committish>` see above +For a detailed description of `<ref>` and `<commit-ish>` see above under `commit` and `from`. The `LF` after the command is optional (it used to be required). @@ -889,7 +893,7 @@ save out all current branch refs, tags and marks. .... Note that fast-import automatically switches packfiles when the current -packfile reaches \--max-pack-size, or 4 GiB, whichever limit is +packfile reaches --max-pack-size, or 4 GiB, whichever limit is smaller. During an automatic packfile switch fast-import does not update the branch refs, tags or marks. @@ -931,6 +935,25 @@ Placing a `progress` command immediately after a `checkpoint` will inform the reader when the `checkpoint` has been completed and it can safely access the refs that fast-import updated. +`get-mark` +~~~~~~~~~~ +Causes fast-import to print the SHA-1 corresponding to a mark to +stdout or to the file descriptor previously arranged with the +`--cat-blob-fd` argument. The command otherwise has no impact on the +current import; its purpose is to retrieve SHA-1s that later commits +might want to refer to in their commit messages. + +.... + 'get-mark' SP ':' <idnum> LF +.... + +This command can be used anywhere in the stream that comments are +accepted. In particular, the `get-mark` command can be used in the +middle of a commit but not in the middle of a `data` command. + +See ``Responses To Commands'' below for details about how to read +this output safely. + `cat-blob` ~~~~~~~~~~ Causes fast-import to print a blob to a file descriptor previously @@ -1001,7 +1024,8 @@ Output uses the same format as `git ls-tree <tree> -- <path>`: ==== The <dataref> represents the blob, tree, or commit object at <path> -and can be used in later 'cat-blob', 'filemodify', or 'ls' commands. +and can be used in later 'get-mark', 'cat-blob', 'filemodify', or +'ls' commands. If there is no file or subtree at that path, 'git fast-import' will instead report @@ -1043,9 +1067,11 @@ import-marks-if-exists:: "feature import-marks-if-exists" like a corresponding command-line option silently skips a nonexistent file. +get-mark:: cat-blob:: ls:: - Require that the backend support the 'cat-blob' or 'ls' command. + Require that the backend support the 'get-mark', 'cat-blob', + or 'ls' command respectively. Versions of fast-import not supporting the specified command will exit with a message indicating so. This lets the import error out early with a clear message, @@ -1085,7 +1111,7 @@ Option commands must be the first commands on the input (not counting feature commands), to give an option command after any non-option command is an error. -The following commandline options change import semantics and may therefore +The following command-line options change import semantics and may therefore not be passed as option: * date-format @@ -1099,7 +1125,7 @@ not be passed as option: If the `done` feature is not in use, treated as if EOF was read. This can be used to tell fast-import to finish early. -If the `--done` command line option or `feature done` command is +If the `--done` command-line option or `feature done` command is in use, the `done` command is mandatory and marks the end of the stream. @@ -1125,11 +1151,11 @@ bidirectional pipes: git fast-import >fast-import-output ==== -A frontend set up this way can use `progress`, `ls`, and `cat-blob` -commands to read information from the import in progress. +A frontend set up this way can use `progress`, `get-mark`, `ls`, and +`cat-blob` commands to read information from the import in progress. To avoid deadlock, such frontends must completely consume any -pending output from `progress`, `ls`, and `cat-blob` before +pending output from `progress`, `ls`, `get-mark`, and `cat-blob` before performing writes to fast-import that might block. Crash Reports @@ -1227,7 +1253,7 @@ users of fast-import, and are offered here as suggestions. Use One Mark Per Commit ~~~~~~~~~~~~~~~~~~~~~~~ When doing a repository conversion, use a unique mark per commit -(`mark :<n>`) and supply the \--export-marks option on the command +(`mark :<n>`) and supply the --export-marks option on the command line. fast-import will dump a file which lists every mark and the Git object SHA-1 that corresponds to it. If the frontend can tie the marks back to the source repository, it is easy to verify the @@ -1292,7 +1318,7 @@ even for considerably large projects (100,000+ commits). However repacking the repository is necessary to improve data locality and access performance. It can also take hours on extremely -large projects (especially if -f and a large \--window parameter is +large projects (especially if -f and a large --window parameter is used). Since repacking is safe to run alongside readers and writers, run the repack in the background and let it finish when it finishes. There is no reason to wait to explore your new Git project! @@ -1306,7 +1332,7 @@ Repacking Historical Data ~~~~~~~~~~~~~~~~~~~~~~~~~ If you are repacking very old imported data (e.g. older than the last year), consider expending some extra CPU time and supplying -\--window=50 (or higher) when you run 'git repack'. +--window=50 (or higher) when you run 'git repack'. This will take longer, but will also produce a smaller packfile. You only need to expend the effort once, and everyone using your project will benefit from the smaller repository. @@ -1408,7 +1434,7 @@ branch, their in-memory storage size can grow to a considerable size fast-import automatically moves active branches to inactive status based on a simple least-recently-used algorithm. The LRU chain is updated on each `commit` command. The maximum number of active branches can be -increased or decreased on the command line with \--active-branches=. +increased or decreased on the command line with --active-branches=. per active tree ~~~~~~~~~~~~~~~ @@ -1438,6 +1464,10 @@ operator can use this facility to peek at the objects and refs from an import in progress, at the cost of some added running time and worse compression. +SEE ALSO +-------- +linkgit:git-fast-export[1] + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-fetch-pack.txt b/Documentation/git-fetch-pack.txt index 1e71754347..8680f45f8d 100644 --- a/Documentation/git-fetch-pack.txt +++ b/Documentation/git-fetch-pack.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git fetch-pack' [--all] [--quiet|-q] [--keep|-k] [--thin] [--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] [--no-progress] - [-v] [<host>:]<directory> [<refs>...] + [-v] <repository> [<refs>...] DESCRIPTION ----------- @@ -80,7 +80,7 @@ be in a separate packet, and the list must end with a flush packet. the things up in .bash_profile). --exec=<git-upload-pack>:: - Same as \--upload-pack=<git-upload-pack>. + Same as --upload-pack=<git-upload-pack>. --depth=<n>:: Limit fetching to ancestor-chains not longer than n. @@ -90,22 +90,25 @@ be in a separate packet, and the list must end with a flush packet. --no-progress:: Do not show the progress. +--check-self-contained-and-connected:: + Output "connectivity-ok" if the received pack is + self-contained and connected. + -v:: Run verbosely. -<host>:: - A remote host that houses the repository. When this - part is specified, 'git-upload-pack' is invoked via - ssh. - -<directory>:: - The repository to sync from. +<repository>:: + The URL to the remote repository. <refs>...:: The remote heads to update from. This is relative to $GIT_DIR (e.g. "HEAD", "refs/heads/master"). When unspecified, update from all heads the remote side has. +SEE ALSO +-------- +linkgit:git-fetch[1] + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt index e08a028946..e62d9a0717 100644 --- a/Documentation/git-fetch.txt +++ b/Documentation/git-fetch.txt @@ -17,26 +17,31 @@ SYNOPSIS DESCRIPTION ----------- -Fetches named heads or tags from one or more other repositories, -along with the objects necessary to complete them. - -The ref names and their object names of fetched refs are stored -in `.git/FETCH_HEAD`. This information is left for a later merge -operation done by 'git merge'. - -When <refspec> stores the fetched result in remote-tracking branches, -the tags that point at these branches are automatically -followed. This is done by first fetching from the remote using -the given <refspec>s, and if the repository has objects that are -pointed by remote tags that it does not yet have, then fetch -those missing tags. If the other end has tags that point at -branches you are not interested in, you will not get them. - -'git fetch' can fetch from either a single named repository, +Fetch branches and/or tags (collectively, "refs") from one or more +other repositories, along with the objects necessary to complete their +histories. Remote-tracking branches are updated (see the description +of <refspec> below for ways to control this behavior). + +By default, any tag that points into the histories being fetched is +also fetched; the effect is to fetch tags that +point at branches that you are interested in. This default behavior +can be changed by using the --tags or --no-tags options or by +configuring remote.<name>.tagOpt. By using a refspec that fetches tags +explicitly, you can fetch tags that do not point into branches you +are interested in as well. + +'git fetch' can fetch from either a single named repository or URL, or from several repositories at once if <group> is given and there is a remotes.<group> entry in the configuration file. (See linkgit:git-config[1]). +When no remote is specified, by default the `origin` remote will be used, +unless there's an upstream branch configured for the current branch. + +The names of refs that are fetched, together with the object names +they point at, are written to `.git/FETCH_HEAD`. This information +may be used by scripts or other git commands, such as linkgit:git-pull[1]. + OPTIONS ------- include::fetch-options.txt[] @@ -46,6 +51,55 @@ include::pull-fetch-param.txt[] include::urls-remotes.txt[] +CONFIGURED REMOTE-TRACKING BRANCHES[[CRTB]] +------------------------------------------- + +You often interact with the same remote repository by +regularly and repeatedly fetching from it. In order to keep track +of the progress of such a remote repository, `git fetch` allows you +to configure `remote.<repository>.fetch` configuration variables. + +Typically such a variable may look like this: + +------------------------------------------------ +[remote "origin"] + fetch = +refs/heads/*:refs/remotes/origin/* +------------------------------------------------ + +This configuration is used in two ways: + +* When `git fetch` is run without specifying what branches + and/or tags to fetch on the command line, e.g. `git fetch origin` + or `git fetch`, `remote.<repository>.fetch` values are used as + the refspecs---they specify which refs to fetch and which local refs + to update. The example above will fetch + all branches that exist in the `origin` (i.e. any ref that matches + the left-hand side of the value, `refs/heads/*`) and update the + corresponding remote-tracking branches in the `refs/remotes/origin/*` + hierarchy. + +* When `git fetch` is run with explicit branches and/or tags + to fetch on the command line, e.g. `git fetch origin master`, the + <refspec>s given on the command line determine what are to be + fetched (e.g. `master` in the example, + which is a short-hand for `master:`, which in turn means + "fetch the 'master' branch but I do not explicitly say what + remote-tracking branch to update with it from the command line"), + and the example command will + fetch _only_ the 'master' branch. The `remote.<repository>.fetch` + values determine which + remote-tracking branch, if any, is updated. When used in this + way, the `remote.<repository>.fetch` values do not have any + effect in deciding _what_ gets fetched (i.e. the values are not + used as refspecs when the command-line lists refspecs); they are + only used to decide _where_ the refs that are fetched are stored + by acting as a mapping. + +The latter use of the `remote.<repository>.fetch` values can be +overridden by giving the `--refmap=<refspec>` parameter(s) on the +command line. + + EXAMPLES -------- @@ -73,6 +127,19 @@ the local repository by fetching from the branches (respectively) The `pu` branch will be updated even if it is does not fast-forward, because it is prefixed with a plus sign; `tmp` will not be. +* Peek at a remote's branch, without configuring the remote in your local +repository: ++ +------------------------------------------------ +$ git fetch git://git.kernel.org/pub/scm/git/git.git maint +$ git log FETCH_HEAD +------------------------------------------------ ++ +The first command fetches the `maint` branch from the repository at +`git://git.kernel.org/pub/scm/git/git.git` and the second command uses +`FETCH_HEAD` to examine the branch with linkgit:git-log[1]. The fetched +objects will eventually be removed by git's built-in housekeeping (see +linkgit:git-gc[1]). BUGS ---- diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index e4c8e82660..73fd9e8230 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -393,7 +393,7 @@ git filter-branch --index-filter \ Checklist for Shrinking a Repository ------------------------------------ -git-filter-branch is often used to get rid of a subset of files, +git-filter-branch can be used to get rid of a subset of files, usually with some combination of `--index-filter` and `--subdirectory-filter`. People expect the resulting repository to be smaller than the original, but you need a few more steps to @@ -429,6 +429,37 @@ warned. (or if your git-gc is not new enough to support arguments to `--prune`, use `git repack -ad; git prune` instead). +Notes +----- + +git-filter-branch allows you to make complex shell-scripted rewrites +of your Git history, but you probably don't need this flexibility if +you're simply _removing unwanted data_ like large files or passwords. +For those operations you may want to consider +http://rtyley.github.io/bfg-repo-cleaner/[The BFG Repo-Cleaner], +a JVM-based alternative to git-filter-branch, typically at least +10-50x faster for those use-cases, and with quite different +characteristics: + +* Any particular version of a file is cleaned exactly _once_. The BFG, + unlike git-filter-branch, does not give you the opportunity to + handle a file differently based on where or when it was committed + within your history. This constraint gives the core performance + benefit of The BFG, and is well-suited to the task of cleansing bad + data - you don't care _where_ the bad data is, you just want it + _gone_. + +* By default The BFG takes full advantage of multi-core machines, + cleansing commit file-trees in parallel. git-filter-branch cleans + commits sequentially (i.e. in a single-threaded manner), though it + _is_ possible to write filters that include their own parallelism, + in the scripts executed against each commit. + +* The http://rtyley.github.io/bfg-repo-cleaner/#examples[command options] + are much more restrictive than git-filter branch, and dedicated just + to the tasks of removing unwanted data- e.g: + `--strip-blobs-bigger-than 1M`. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-fmt-merge-msg.txt b/Documentation/git-fmt-merge-msg.txt index bb1232a52c..55a9a4b93a 100644 --- a/Documentation/git-fmt-merge-msg.txt +++ b/Documentation/git-fmt-merge-msg.txt @@ -51,17 +51,7 @@ OPTIONS CONFIGURATION ------------- - -merge.branchdesc:: - In addition to branch names, populate the log message with - the branch description text associated with them. Defaults - to false. - -merge.log:: - In addition to branch names, populate the log message with at - most the specified number of one-line descriptions from the - actual commits that are being merged. Defaults to false, and - true is a synonym for 20. +include::fmt-merge-msg-config.txt[] merge.summary:: Synonym to `merge.log`; this is deprecated and will be removed in diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index f2e08d11c1..7f8d9a5b5f 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -91,7 +91,25 @@ objectname:: upstream:: The name of a local ref which can be considered ``upstream'' from the displayed ref. Respects `:short` in the same way as - `refname` above. + `refname` above. Additionally respects `:track` to show + "[ahead N, behind M]" and `:trackshort` to show the terse + version: ">" (ahead), "<" (behind), "<>" (ahead and behind), + or "=" (in sync). Has no effect if the ref does not have + tracking information associated with it. + +push:: + The name of a local ref which represents the `@{push}` location + for the displayed ref. Respects `:short`, `:track`, and + `:trackshort` options as `upstream` does. Produces an empty + string if no `@{push}` ref is configured. + +HEAD:: + '*' if HEAD matches current ref (the checked out branch), ' ' + otherwise. + +color:: + Change output color. Followed by `:<colorname>`, where names + are described in `color.branch.*`. In addition to the above, for commit and tag objects, the header field names (`tree`, `parent`, `object`, `type`, and `tag`) can @@ -207,13 +225,9 @@ eval=`git for-each-ref --shell --format="$fmt" \ eval "$eval" ------------ -Author ------- -Written by Junio C Hamano <gitster@pobox.com>. - -Documentation -------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +SEE ALSO +-------- +linkgit:git-show-ref[1] GIT --- diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index e394276b1a..0dac4e9b86 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -14,6 +14,7 @@ SYNOPSIS [(--attach|--inline)[=<boundary>] | --no-attach] [-s | --signoff] [--signature=<signature> | --no-signature] + [--signature-file=<file>] [-n | --numbered | -N | --no-numbered] [--start-number <n>] [--numbered-files] [--in-reply-to=Message-Id] [--suffix=.<sfx>] @@ -169,7 +170,7 @@ will want to ensure that threading is disabled for `git send-email`. -v <n>:: --reroll-count=<n>:: Mark the series as the <n>-th iteration of the topic. The - output filenames have `v<n>` pretended to them, and the + output filenames have `v<n>` prepended to them, and the subject prefix ("PATCH" by default, but configurable via the `--subject-prefix` option) has ` v<n>` appended to it. E.g. `--reroll-count=4` may produce `v4-0001-add-makefile.patch` @@ -233,6 +234,9 @@ configuration options in linkgit:git-notes[1] to use this workflow). signature option is omitted the signature defaults to the Git version number. +--signature-file=<file>:: + Works just like --signature except the signature is read from a file. + --suffix=.<sfx>:: Instead of using `.patch` as the suffix for generated filenames, use specified suffix. A common alternative is @@ -242,6 +246,7 @@ configuration options in linkgit:git-notes[1] to use this workflow). Note that the leading character does not have to be a dot; for example, you can use `--suffix=-patch` to get `0001-description-of-my-change-patch`. +-q:: --quiet:: Do not print the names of the generated files to standard output. @@ -268,13 +273,13 @@ attachments, and sign off patches with configuration variables. ------------ [format] headers = "Organization: git-foo\n" - subjectprefix = CHANGE + subjectPrefix = CHANGE suffix = .txt numbered = auto to = <email> cc = <email> attach [ = mime-boundary-string ] - signoff = true + signOff = true coverletter = auto ------------ @@ -437,7 +442,8 @@ Edit..Preferences..Composition, wrap plain text messages at 0 In Thunderbird 3: Edit..Preferences..Advanced..Config Editor. Search for "mail.wrap_long_lines". -Toggle it to make sure it is set to `false`. +Toggle it to make sure it is set to `false`. Also, search for +"mailnews.wraplength" and set the value to 0. 3. Disable the use of format=flowed: Edit..Preferences..Advanced..Config Editor. Search for diff --git a/Documentation/git-fsck.txt b/Documentation/git-fsck.txt index 25c431d3c5..84ee92e158 100644 --- a/Documentation/git-fsck.txt +++ b/Documentation/git-fsck.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git fsck' [--tags] [--root] [--unreachable] [--cache] [--no-reflogs] [--[no-]full] [--strict] [--verbose] [--lost-found] - [--[no-]dangling] [--[no-]progress] [<object>*] + [--[no-]dangling] [--[no-]progress] [--connectivity-only] [<object>*] DESCRIPTION ----------- @@ -60,6 +60,11 @@ index file, all SHA-1 references in `refs` namespace, and all reflogs object pools. This is now default; you can turn it off with --no-full. +--connectivity-only:: + Check only the connectivity of tags, commits and tree objects. By + avoiding to unpack blobs, this speeds up the operation, at the + expense of missing corrupt objects or other problematic issues. + --strict:: Enable more strict checking, namely to catch a file mode recorded with g+w bit set, which was created by older diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt index 2402ed6828..52234987f9 100644 --- a/Documentation/git-gc.txt +++ b/Documentation/git-gc.txt @@ -9,7 +9,7 @@ git-gc - Cleanup unnecessary files and optimize the local repository SYNOPSIS -------- [verse] -'git gc' [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] +'git gc' [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] [--force] DESCRIPTION ----------- @@ -54,10 +54,10 @@ all loose objects are combined into a single pack using `git repack -d -l`. Setting the value of `gc.auto` to 0 disables automatic packing of loose objects. + -If the number of packs exceeds the value of `gc.autopacklimit`, +If the number of packs exceeds the value of `gc.autoPackLimit`, then existing packs (except those marked with a `.keep` file) are consolidated into a single pack by using the `-A` option of -'git repack'. Setting `gc.autopacklimit` to 0 disables +'git repack'. Setting `gc.autoPackLimit` to 0 disables automatic consolidation of packs. --prune=<date>:: @@ -72,6 +72,10 @@ automatic consolidation of packs. --quiet:: Suppress all progress reports. +--force:: + Force `git gc` to run even if there may be another `git gc` + instance running on this repository. + Configuration ------------- @@ -97,18 +101,18 @@ branches: ------------ [gc "refs/remotes/*"] reflogExpire = never - reflogexpireUnreachable = 3 days + reflogExpireUnreachable = 3 days ------------ -The optional configuration variable 'gc.rerereresolved' indicates +The optional configuration variable 'gc.rerereResolved' indicates how long records of conflicted merge you resolved earlier are kept. This defaults to 60 days. -The optional configuration variable 'gc.rerereunresolved' indicates +The optional configuration variable 'gc.rerereUnresolved' indicates how long records of conflicted merge you have not resolved are kept. This defaults to 15 days. -The optional configuration variable 'gc.packrefs' determines if +The optional configuration variable 'gc.packRefs' determines if 'git gc' runs 'git pack-refs'. This can be set to "notbare" to enable it within all non-bare repos or it can be set to a boolean value. This defaults to true. @@ -120,6 +124,9 @@ the value, the more time is spent optimizing the delta compression. See the documentation for the --window' option in linkgit:git-repack[1] for more details. This defaults to 250. +Similarly, the optional configuration variable 'gc.aggressiveDepth' +controls --depth option in linkgit:git-repack[1]. This defaults to 250. + The optional configuration variable 'gc.pruneExpire' controls how old the unreferenced loose objects have to be before they are pruned. The default is "2 weeks ago". diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 8497aa4494..31811f16bd 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -9,7 +9,7 @@ git-grep - Print lines matching a pattern SYNOPSIS -------- [verse] -'git grep' [-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp] +'git grep' [-a | --text] [-I] [--textconv] [-i | --ignore-case] [-w | --word-regexp] [-v | --invert-match] [-h|-H] [--full-name] [-E | --extended-regexp] [-G | --basic-regexp] [-P | --perl-regexp] @@ -53,6 +53,9 @@ grep.extendedRegexp:: option is ignored when the 'grep.patternType' option is set to a value other than 'default'. +grep.fullName:: + If set to true, enable '--full-name' option by default. + OPTIONS ------- @@ -80,6 +83,13 @@ OPTIONS --text:: Process binary files as if they were text. +--textconv:: + Honor textconv filter settings. + +--no-textconv:: + Do not honor textconv filter settings. + This is the default. + -i:: --ignore-case:: Ignore case differences between the patterns and the diff --git a/Documentation/git-hash-object.txt b/Documentation/git-hash-object.txt index 02c1f12685..0c75f3b610 100644 --- a/Documentation/git-hash-object.txt +++ b/Documentation/git-hash-object.txt @@ -9,7 +9,7 @@ git-hash-object - Compute object ID and optionally creates a blob from a file SYNOPSIS -------- [verse] -'git hash-object' [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>... +'git hash-object' [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin [--literally]] [--] <file>... 'git hash-object' [-t <type>] [-w] --stdin-paths [--no-filters] < <list-of-paths> DESCRIPTION @@ -51,7 +51,13 @@ OPTIONS Hash the contents as is, ignoring any input filter that would have been chosen by the attributes mechanism, including the end-of-line conversion. If the file is read from standard input then this - is always implied, unless the --path option is given. + is always implied, unless the `--path` option is given. + +--literally:: + Allow `--stdin` to hash any garbage into a loose object which might not + otherwise pass standard object parsing or git-fsck checks. Useful for + stress-testing Git itself or reproducing characteristics of corrupt or + bogus objects encountered in the wild. GIT --- diff --git a/Documentation/git-help.txt b/Documentation/git-help.txt index b21e9d79be..3956525218 100644 --- a/Documentation/git-help.txt +++ b/Documentation/git-help.txt @@ -80,9 +80,9 @@ CONFIGURATION VARIABLES help.format ~~~~~~~~~~~ -If no command line option is passed, the 'help.format' configuration +If no command-line option is passed, the 'help.format' configuration variable will be checked. The following values are supported for this -variable; they make 'git help' behave as their corresponding command +variable; they make 'git help' behave as their corresponding command- line option: * "man" corresponds to '-m|--man', @@ -93,15 +93,15 @@ help.browser, web.browser and browser.<tool>.path ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The 'help.browser', 'web.browser' and 'browser.<tool>.path' will also -be checked if the 'web' format is chosen (either by command line +be checked if the 'web' format is chosen (either by command-line option or configuration variable). See '-w|--web' in the OPTIONS section above and linkgit:git-web{litdd}browse[1]. man.viewer ~~~~~~~~~~ -The 'man.viewer' config variable will be checked if the 'man' format -is chosen. The following values are currently supported: +The 'man.viewer' configuration variable will be checked if the 'man' +format is chosen. The following values are currently supported: * "man": use the 'man' program as usual, * "woman": use 'emacsclient' to launch the "woman" mode in emacs @@ -124,7 +124,7 @@ For example, this configuration: viewer = woman ------------------------------------------------ -will try to use konqueror first. But this may fail (for example if +will try to use konqueror first. But this may fail (for example, if DISPLAY is not set) and in that case emacs' woman mode will be tried. If everything fails, or if no viewer is configured, the viewer specified diff --git a/Documentation/git-http-backend.txt b/Documentation/git-http-backend.txt index e3bcdb50e3..9268fb6b1e 100644 --- a/Documentation/git-http-backend.txt +++ b/Documentation/git-http-backend.txt @@ -65,8 +65,8 @@ automatically by the web server. EXAMPLES -------- -All of the following examples map 'http://$hostname/git/foo/bar.git' -to '/var/www/git/foo/bar.git'. +All of the following examples map `http://$hostname/git/foo/bar.git` +to `/var/www/git/foo/bar.git`. Apache 2.x:: Ensure mod_cgi, mod_alias, and mod_env are enabled, set @@ -191,7 +191,7 @@ ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/ ---------------------------------------------------------------- Lighttpd:: - Ensure that `mod_cgi`, `mod_alias, `mod_auth`, `mod_setenv` are + Ensure that `mod_cgi`, `mod_alias`, `mod_auth`, `mod_setenv` are loaded, then set `GIT_PROJECT_ROOT` appropriately and redirect all requests to the CGI: + @@ -255,6 +255,15 @@ The GIT_HTTP_EXPORT_ALL environmental variable may be passed to 'git-http-backend' to bypass the check for the "git-daemon-export-ok" file in each repository before allowing export of that repository. +The `GIT_HTTP_MAX_REQUEST_BUFFER` environment variable (or the +`http.maxRequestBuffer` config variable) may be set to change the +largest ref negotiation request that git will handle during a fetch; any +fetch requiring a larger buffer will not succeed. This value should not +normally need to be changed, but may be helpful if you are fetching from +a repository with an extremely large number of refs. The value can be +specified with a unit (e.g., `100M` for 100 megabytes). The default is +10 megabytes. + The backend process sets GIT_COMMITTER_NAME to '$REMOTE_USER' and GIT_COMMITTER_EMAIL to '$\{REMOTE_USER}@http.$\{REMOTE_ADDR\}', ensuring that any reflogs created by 'git-receive-pack' contain some @@ -263,14 +272,6 @@ identifying information of the remote user who performed the push. All CGI environment variables are available to each of the hooks invoked by the 'git-receive-pack'. -Author ------- -Written by Shawn O. Pearce <spearce@spearce.org>. - -Documentation --------------- -Documentation by Shawn O. Pearce <spearce@spearce.org>. - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-imap-send.txt b/Documentation/git-imap-send.txt index 875d2831a5..5d1e4c80cd 100644 --- a/Documentation/git-imap-send.txt +++ b/Documentation/git-imap-send.txt @@ -9,7 +9,7 @@ git-imap-send - Send a collection of patches from stdin to an IMAP folder SYNOPSIS -------- [verse] -'git imap-send' +'git imap-send' [-v] [-q] [--[no-]curl] DESCRIPTION @@ -26,6 +26,28 @@ Typical usage is something like: git format-patch --signoff --stdout --attach origin | git imap-send +OPTIONS +------- + +-v:: +--verbose:: + Be verbose. + +-q:: +--quiet:: + Be quiet. + +--curl:: + Use libcurl to communicate with the IMAP server, unless tunneling + into it. Ignored if Git was built without the USE_CURL_FOR_IMAP_SEND + option set. + +--no-curl:: + Talk to the IMAP server using git's own IMAP routines instead of + using libcurl. Ignored if Git was built with the NO_OPENSSL option + set. + + CONFIGURATION ------------- @@ -38,18 +60,17 @@ Variables imap.folder:: The folder to drop the mails into, which is typically the Drafts folder. For example: "INBOX.Drafts", "INBOX/Drafts" or - "[Gmail]/Drafts". Required to use imap-send. + "[Gmail]/Drafts". Required. imap.tunnel:: Command used to setup a tunnel to the IMAP server through which commands will be piped instead of using a direct network connection - to the server. Required when imap.host is not set to use imap-send. + to the server. Required when imap.host is not set. imap.host:: A URL identifying the server. Use a `imap://` prefix for non-secure connections and a `imaps://` prefix for secure connections. - Ignored when imap.tunnel is set, but required to use imap-send - otherwise. + Ignored when imap.tunnel is set, but required otherwise. imap.user:: The username to use when logging in to the server. @@ -76,7 +97,10 @@ imap.preformattedHTML:: imap.authMethod:: Specify authenticate method for authentication with IMAP server. - Current supported method is 'CRAM-MD5' only. + If Git was built with the NO_CURL option, or if your curl version is older + than 7.34.0, or if you're running git-imap-send with the `--no-curl` + option, the only supported method is 'CRAM-MD5'. If this is not set + then 'git imap-send' uses the basic IMAP plaintext LOGIN command. Examples ~~~~~~~~ @@ -97,7 +121,7 @@ Using direct mode: host = imap://imap.example.com user = bob pass = p4ssw0rd -.......................... +......................... Using direct mode with SSL: @@ -109,7 +133,7 @@ Using direct mode with SSL: pass = p4ssw0rd port = 123 sslverify = false -.......................... +......................... EXAMPLE diff --git a/Documentation/git-init.txt b/Documentation/git-init.txt index afd721e3a9..8174d27efd 100644 --- a/Documentation/git-init.txt +++ b/Documentation/git-init.txt @@ -43,7 +43,7 @@ OPTIONS -q:: --quiet:: -Only print error and warning messages, all other output will be suppressed. +Only print error and warning messages; all other output will be suppressed. --bare:: @@ -57,12 +57,12 @@ DIRECTORY" section below.) --separate-git-dir=<git dir>:: -Instead of initializing the repository where it is supposed to be, -place a filesytem-agnostic Git symbolic link there, pointing to the -specified path, and initialize a Git repository at the path. The -result is Git repository can be separated from working tree. If this -is reinitialization, the repository will be moved to the specified -path. +Instead of initializing the repository as a directory to either `$GIT_DIR` or +`./.git/`, create a text file there containing the path to the actual +repository. This file acts as filesystem-agnostic Git symbolic link to the +repository. ++ +If this is reinitialization, the repository will be moved to the specified path. --shared[=(false|true|umask|group|all|world|everybody|0xxx)]:: @@ -72,60 +72,65 @@ repository. When specified, the config variable "core.sharedRepository" is set so that files and directories under `$GIT_DIR` are created with the requested permissions. When not specified, Git will use permissions reported by umask(2). - ++ The option can have the following values, defaulting to 'group' if no value is given: ++ +-- +'umask' (or 'false'):: - - 'umask' (or 'false'): Use permissions reported by umask(2). The default, - when `--shared` is not specified. +Use permissions reported by umask(2). The default, when `--shared` is not +specified. - - 'group' (or 'true'): Make the repository group-writable, (and g+sx, since - the git group may be not the primary group of all users). - This is used to loosen the permissions of an otherwise safe umask(2) value. - Note that the umask still applies to the other permission bits (e.g. if - umask is '0022', using 'group' will not remove read privileges from other - (non-group) users). See '0xxx' for how to exactly specify the repository - permissions. +'group' (or 'true'):: - - 'all' (or 'world' or 'everybody'): Same as 'group', but make the repository - readable by all users. +Make the repository group-writable, (and g+sx, since the git group may be not +the primary group of all users). This is used to loosen the permissions of an +otherwise safe umask(2) value. Note that the umask still applies to the other +permission bits (e.g. if umask is '0022', using 'group' will not remove read +privileges from other (non-group) users). See '0xxx' for how to exactly specify +the repository permissions. - - '0xxx': '0xxx' is an octal number and each file will have mode '0xxx'. - '0xxx' will override users' umask(2) value (and not only loosen permissions - as 'group' and 'all' does). '0640' will create a repository which is - group-readable, but not group-writable or accessible to others. '0660' will - create a repo that is readable and writable to the current user and group, - but inaccessible to others. +'all' (or 'world' or 'everybody'):: -By default, the configuration flag receive.denyNonFastForwards is enabled +Same as 'group', but make the repository readable by all users. + +'0xxx':: + +'0xxx' is an octal number and each file will have mode '0xxx'. '0xxx' will +override users' umask(2) value (and not only loosen permissions as 'group' and +'all' does). '0640' will create a repository which is group-readable, but not +group-writable or accessible to others. '0660' will create a repo that is +readable and writable to the current user and group, but inaccessible to others. +-- + +By default, the configuration flag `receive.denyNonFastForwards` is enabled in shared repositories, so that you cannot force a non fast-forwarding push into it. -If you name a (possibly non-existent) directory at the end of the command -line, the command is run inside the directory (possibly after creating it). +If you provide a 'directory', the command is run inside it. If this directory +does not exist, it will be created. -- - TEMPLATE DIRECTORY ------------------ The template directory contains files and directories that will be copied to the `$GIT_DIR` after it is created. -The template directory used will (in order): +The template directory will be one of the following (in order): - - The argument given with the `--template` option. + - the argument given with the `--template` option; - - The contents of the `$GIT_TEMPLATE_DIR` environment variable. + - the contents of the `$GIT_TEMPLATE_DIR` environment variable; - - The `init.templatedir` configuration variable. + - the `init.templateDir` configuration variable; or - - The default template directory: `/usr/share/git-core/templates`. + - the default template directory: `/usr/share/git-core/templates`. -The default template directory includes some directory structure, some -suggested "exclude patterns", and copies of sample "hook" files. -The suggested patterns and hook files are all modifiable and extensible. +The default template directory includes some directory structure, suggested +"exclude patterns" (see linkgit:gitignore[5]), and sample hook files (see linkgit:githooks[5]). EXAMPLES -------- @@ -136,10 +141,12 @@ Start a new Git repository for an existing code base:: $ cd /path/to/my/codebase $ git init <1> $ git add . <2> +$ git commit <3> ---------------- + -<1> prepare /path/to/my/codebase/.git directory -<2> add all existing file to the index +<1> Create a /path/to/my/codebase/.git directory. +<2> Add all existing files to the index. +<3> Record the pristine state as the first commit in the history. GIT --- diff --git a/Documentation/git-instaweb.txt b/Documentation/git-instaweb.txt index f3eef510f2..cc75b25022 100644 --- a/Documentation/git-instaweb.txt +++ b/Documentation/git-instaweb.txt @@ -76,7 +76,7 @@ You may specify configuration in your .git/config httpd = apache2 -f port = 4321 browser = konqueror - modulepath = /usr/lib/apache2/modules + modulePath = /usr/lib/apache2/modules ----------------------------------------------------------------------- diff --git a/Documentation/git-interpret-trailers.txt b/Documentation/git-interpret-trailers.txt new file mode 100644 index 0000000000..d6d9231b50 --- /dev/null +++ b/Documentation/git-interpret-trailers.txt @@ -0,0 +1,314 @@ +git-interpret-trailers(1) +========================= + +NAME +---- +git-interpret-trailers - help add structured information into commit messages + +SYNOPSIS +-------- +[verse] +'git interpret-trailers' [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...] + +DESCRIPTION +----------- +Help adding 'trailers' lines, that look similar to RFC 822 e-mail +headers, at the end of the otherwise free-form part of a commit +message. + +This command reads some patches or commit messages from either the +<file> arguments or the standard input if no <file> is specified. Then +this command applies the arguments passed using the `--trailer` +option, if any, to the commit message part of each input file. The +result is emitted on the standard output. + +Some configuration variables control the way the `--trailer` arguments +are applied to each commit message and the way any existing trailer in +the commit message is changed. They also make it possible to +automatically add some trailers. + +By default, a '<token>=<value>' or '<token>:<value>' argument given +using `--trailer` will be appended after the existing trailers only if +the last trailer has a different (<token>, <value>) pair (or if there +is no existing trailer). The <token> and <value> parts will be trimmed +to remove starting and trailing whitespace, and the resulting trimmed +<token> and <value> will appear in the message like this: + +------------------------------------------------ +token: value +------------------------------------------------ + +This means that the trimmed <token> and <value> will be separated by +`': '` (one colon followed by one space). + +By default the new trailer will appear at the end of all the existing +trailers. If there is no existing trailer, the new trailer will appear +after the commit message part of the output, and, if there is no line +with only spaces at the end of the commit message part, one blank line +will be added before the new trailer. + +Existing trailers are extracted from the input message by looking for +a group of one or more lines that contain a colon (by default), where +the group is preceded by one or more empty (or whitespace-only) lines. +The group must either be at the end of the message or be the last +non-whitespace lines before a line that starts with '---'. Such three +minus signs start the patch part of the message. + +When reading trailers, there can be whitespaces before and after the +token, the separator and the value. There can also be whitespaces +inside the token and the value. + +Note that 'trailers' do not follow and are not intended to follow many +rules for RFC 822 headers. For example they do not follow the line +folding rules, the encoding rules and probably many other rules. + +OPTIONS +------- +--trim-empty:: + If the <value> part of any trailer contains only whitespace, + the whole trailer will be removed from the resulting message. + This apply to existing trailers as well as new trailers. + +--trailer <token>[(=|:)<value>]:: + Specify a (<token>, <value>) pair that should be applied as a + trailer to the input messages. See the description of this + command. + +CONFIGURATION VARIABLES +----------------------- + +trailer.separators:: + This option tells which characters are recognized as trailer + separators. By default only ':' is recognized as a trailer + separator, except that '=' is always accepted on the command + line for compatibility with other git commands. ++ +The first character given by this option will be the default character +used when another separator is not specified in the config for this +trailer. ++ +For example, if the value for this option is "%=$", then only lines +using the format '<token><sep><value>' with <sep> containing '%', '=' +or '$' and then spaces will be considered trailers. And '%' will be +the default separator used, so by default trailers will appear like: +'<token>% <value>' (one percent sign and one space will appear between +the token and the value). + +trailer.where:: + This option tells where a new trailer will be added. ++ +This can be `end`, which is the default, `start`, `after` or `before`. ++ +If it is `end`, then each new trailer will appear at the end of the +existing trailers. ++ +If it is `start`, then each new trailer will appear at the start, +instead of the end, of the existing trailers. ++ +If it is `after`, then each new trailer will appear just after the +last trailer with the same <token>. ++ +If it is `before`, then each new trailer will appear just before the +first trailer with the same <token>. + +trailer.ifexists:: + This option makes it possible to choose what action will be + performed when there is already at least one trailer with the + same <token> in the message. ++ +The valid values for this option are: `addIfDifferentNeighbor` (this +is the default), `addIfDifferent`, `add`, `overwrite` or `doNothing`. ++ +With `addIfDifferentNeighbor`, a new trailer will be added only if no +trailer with the same (<token>, <value>) pair is above or below the line +where the new trailer will be added. ++ +With `addIfDifferent`, a new trailer will be added only if no trailer +with the same (<token>, <value>) pair is already in the message. ++ +With `add`, a new trailer will be added, even if some trailers with +the same (<token>, <value>) pair are already in the message. ++ +With `replace`, an existing trailer with the same <token> will be +deleted and the new trailer will be added. The deleted trailer will be +the closest one (with the same <token>) to the place where the new one +will be added. ++ +With `doNothing`, nothing will be done; that is no new trailer will be +added if there is already one with the same <token> in the message. + +trailer.ifmissing:: + This option makes it possible to choose what action will be + performed when there is not yet any trailer with the same + <token> in the message. ++ +The valid values for this option are: `add` (this is the default) and +`doNothing`. ++ +With `add`, a new trailer will be added. ++ +With `doNothing`, nothing will be done. + +trailer.<token>.key:: + This `key` will be used instead of <token> in the trailer. At + the end of this key, a separator can appear and then some + space characters. By default the only valid separator is ':', + but this can be changed using the `trailer.separators` config + variable. ++ +If there is a separator, then the key will be used instead of both the +<token> and the default separator when adding the trailer. + +trailer.<token>.where:: + This option takes the same values as the 'trailer.where' + configuration variable and it overrides what is specified by + that option for trailers with the specified <token>. + +trailer.<token>.ifexist:: + This option takes the same values as the 'trailer.ifexist' + configuration variable and it overrides what is specified by + that option for trailers with the specified <token>. + +trailer.<token>.ifmissing:: + This option takes the same values as the 'trailer.ifmissing' + configuration variable and it overrides what is specified by + that option for trailers with the specified <token>. + +trailer.<token>.command:: + This option can be used to specify a shell command that will + be called to automatically add or modify a trailer with the + specified <token>. ++ +When this option is specified, the behavior is as if a special +'<token>=<value>' argument were added at the beginning of the command +line, where <value> is taken to be the standard output of the +specified command with any leading and trailing whitespace trimmed +off. ++ +If the command contains the `$ARG` string, this string will be +replaced with the <value> part of an existing trailer with the same +<token>, if any, before the command is launched. ++ +If some '<token>=<value>' arguments are also passed on the command +line, when a 'trailer.<token>.command' is configured, the command will +also be executed for each of these arguments. And the <value> part of +these arguments, if any, will be used to replace the `$ARG` string in +the command. + +EXAMPLES +-------- + +* Configure a 'sign' trailer with a 'Signed-off-by' key, and then + add two of these trailers to a message: ++ +------------ +$ git config trailer.sign.key "Signed-off-by" +$ cat msg.txt +subject + +message +$ cat msg.txt | git interpret-trailers --trailer 'sign: Alice <alice@example.com>' --trailer 'sign: Bob <bob@example.com>' +subject + +message + +Signed-off-by: Alice <alice@example.com> +Signed-off-by: Bob <bob@example.com> +------------ + +* Extract the last commit as a patch, and add a 'Cc' and a + 'Reviewed-by' trailer to it: ++ +------------ +$ git format-patch -1 +0001-foo.patch +$ git interpret-trailers --trailer 'Cc: Alice <alice@example.com>' --trailer 'Reviewed-by: Bob <bob@example.com>' 0001-foo.patch >0001-bar.patch +------------ + +* Configure a 'sign' trailer with a command to automatically add a + 'Signed-off-by: ' with the author information only if there is no + 'Signed-off-by: ' already, and show how it works: ++ +------------ +$ git config trailer.sign.key "Signed-off-by: " +$ git config trailer.sign.ifmissing add +$ git config trailer.sign.ifexists doNothing +$ git config trailer.sign.command 'echo "$(git config user.name) <$(git config user.email)>"' +$ git interpret-trailers <<EOF +> EOF + +Signed-off-by: Bob <bob@example.com> +$ git interpret-trailers <<EOF +> Signed-off-by: Alice <alice@example.com> +> EOF + +Signed-off-by: Alice <alice@example.com> +------------ + +* Configure a 'fix' trailer with a key that contains a '#' and no + space after this character, and show how it works: ++ +------------ +$ git config trailer.separators ":#" +$ git config trailer.fix.key "Fix #" +$ echo "subject" | git interpret-trailers --trailer fix=42 +subject + +Fix #42 +------------ + +* Configure a 'see' trailer with a command to show the subject of a + commit that is related, and show how it works: ++ +------------ +$ git config trailer.see.key "See-also: " +$ git config trailer.see.ifExists "replace" +$ git config trailer.see.ifMissing "doNothing" +$ git config trailer.see.command "git log -1 --oneline --format=\"%h (%s)\" --abbrev-commit --abbrev=14 \$ARG" +$ git interpret-trailers <<EOF +> subject +> +> message +> +> see: HEAD~2 +> EOF +subject + +message + +See-also: fe3187489d69c4 (subject of related commit) +------------ + +* Configure a commit template with some trailers with empty values + (using sed to show and keep the trailing spaces at the end of the + trailers), then configure a commit-msg hook that uses + 'git interpret-trailers' to remove trailers with empty values and + to add a 'git-version' trailer: ++ +------------ +$ sed -e 's/ Z$/ /' >commit_template.txt <<EOF +> ***subject*** +> +> ***message*** +> +> Fixes: Z +> Cc: Z +> Reviewed-by: Z +> Signed-off-by: Z +> EOF +$ git config commit.template commit_template.txt +$ cat >.git/hooks/commit-msg <<EOF +> #!/bin/sh +> git interpret-trailers --trim-empty --trailer "git-version: \$(git describe)" "\$1" > "\$1.new" +> mv "\$1.new" "\$1" +> EOF +$ chmod +x .git/hooks/commit-msg +------------ + +SEE ALSO +-------- +linkgit:git-commit[1], linkgit:git-format-patch[1], linkgit:git-config[1] + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt index ac2694d04c..97b9993ee8 100644 --- a/Documentation/git-log.txt +++ b/Documentation/git-log.txt @@ -15,9 +15,9 @@ DESCRIPTION ----------- Shows the commit logs. -The command takes options applicable to the 'git rev-list' +The command takes options applicable to the `git rev-list` command to control what is shown and how, and options applicable to -the 'git diff-*' commands to control how the changes +the `git diff-*` commands to control how the changes each commit introduces are shown. @@ -42,37 +42,34 @@ OPTIONS --use-mailmap:: Use mailmap file to map author and committer names and email - to canonical real names and email addresses. See + addresses to canonical real names and email addresses. See linkgit:git-shortlog[1]. --full-diff:: - Without this flag, "git log -p <path>..." shows commits that + Without this flag, `git log -p <path>...` shows commits that touch the specified paths, and diffs about the same specified paths. With this, the full diff is shown for commits that touch the specified paths; this means that "<path>..." limits only commits, and doesn't limit diff for those commits. + Note that this affects all diff-based output types, e.g. those -produced by --stat etc. +produced by `--stat`, etc. --log-size:: - Before the log message print out its size in bytes. Intended - mainly for porcelain tools consumption. If Git is unable to - produce a valid value size is set to zero. - Note that only message is considered, if also a diff is shown - its size is not included. - --L <start>,<end>:<file>, -L :<regex>:<file>:: + Include a line ``log size <number>'' in the output for each commit, + where <number> is the length of that commit's message in bytes. + Intended to speed up tools that read log messages from `git log` + output by allowing them to allocate space in advance. +-L <start>,<end>:<file>:: +-L :<funcname>:<file>:: Trace the evolution of the line range given by "<start>,<end>" - (or the funcname regex <regex>) within the <file>. You may + (or the function name regex <funcname>) within the <file>. You may not give any pathspec limiters. This is currently limited to a walk starting from a single revision, i.e., you may only give zero or one positive revision arguments. You can specify this option more than once. + -<start> and <end> can take one of these forms: - include::line-range-format.txt[] <revision range>:: @@ -81,16 +78,16 @@ include::line-range-format.txt[] whole history leading to the current commit). `origin..HEAD` specifies all the commits reachable from the current commit (i.e. `HEAD`), but not from `origin`. For a complete list of - ways to spell <revision range>, see the "Specifying Ranges" + ways to spell <revision range>, see the 'Specifying Ranges' section of linkgit:gitrevisions[7]. [\--] <path>...:: Show only commits that are enough to explain how the files - that match the specified paths came to be. See "History - Simplification" below for details and other simplification + that match the specified paths came to be. See 'History + Simplification' below for details and other simplification modes. + -Paths may need to be prefixed with "\-- " to separate them from +Paths may need to be prefixed with ``\-- '' to separate them from options or the revision range, when confusion arises. include::rev-list-options.txt[] @@ -114,12 +111,12 @@ EXAMPLES `git log v2.6.12.. include/scsi drivers/scsi`:: Show all commits since version 'v2.6.12' that changed any file - in the include/scsi or drivers/scsi subdirectories + in the `include/scsi` or `drivers/scsi` subdirectories `git log --since="2 weeks ago" -- gitk`:: Show the changes during the last two weeks to the file 'gitk'. - The "--" is necessary to avoid confusion with the *branch* named + The ``--'' is necessary to avoid confusion with the *branch* named 'gitk' `git log --name-status release..test`:: @@ -130,7 +127,7 @@ EXAMPLES `git log --follow builtin/rev-list.c`:: - Shows the commits that changed builtin/rev-list.c, including + Shows the commits that changed `builtin/rev-list.c`, including those commits that occurred before the file was given its present name. @@ -148,17 +145,18 @@ EXAMPLES `git log -p -m --first-parent`:: Shows the history including change diffs, but only from the - "main branch" perspective, skipping commits that come from merged + ``main branch'' perspective, skipping commits that come from merged branches, and showing full diffs of changes introduced by the merges. This makes sense only when following a strict policy of merging all topic branches when staying on a single integration branch. `git log -L '/int main/',/^}/:main.c`:: - Shows how the function `main()` in the file 'main.c' evolved + Shows how the function `main()` in the file `main.c` evolved over time. `git log -3`:: + Limits the number of commits to show to 3. DISCUSSION @@ -173,12 +171,12 @@ See linkgit:git-config[1] for core variables and linkgit:git-diff[1] for settings related to diff generation. format.pretty:: - Default for the `--format` option. (See "PRETTY FORMATS" above.) - Defaults to "medium". + Default for the `--format` option. (See 'Pretty Formats' above.) + Defaults to `medium`. i18n.logOutputEncoding:: - Encoding to use when displaying logs. (See "Discussion", above.) - Defaults to the value of `i18n.commitEncoding` if set, UTF-8 + Encoding to use when displaying logs. (See 'Discussion' above.) + Defaults to the value of `i18n.commitEncoding` if set, and UTF-8 otherwise. log.date:: @@ -186,8 +184,14 @@ log.date:: `--date` option.) Defaults to "default", which means to write dates like `Sat May 8 19:35:34 2010 -0500`. -log.showroot:: - If `false`, 'git log' and related commands will not treat the +log.follow:: + If a single <path> is given to git log, it will act as + if the `--follow` option was also used. This has the same + limitations as `--follow`, i.e. it cannot be used to follow + multiple files and does not work well on non-linear history. + +log.showRoot:: + If `false`, `git log` and related commands will not treat the initial commit as a big creation event. Any root commits in `git log -p` output would be shown without a diff attached. The default is `true`. @@ -198,7 +202,7 @@ mailmap.*:: notes.displayRef:: Which refs, in addition to the default set by `core.notesRef` or 'GIT_NOTES_REF', to read notes from when showing commit - messages with the 'log' family of commands. See + messages with the `log` family of commands. See linkgit:git-notes[1]. + May be an unabbreviated ref name or a glob and may be specified diff --git a/Documentation/git-lost-found.txt b/Documentation/git-lost-found.txt deleted file mode 100644 index d54932889f..0000000000 --- a/Documentation/git-lost-found.txt +++ /dev/null @@ -1,74 +0,0 @@ -git-lost-found(1) -================= - -NAME ----- -git-lost-found - Recover lost refs that luckily have not yet been pruned - -SYNOPSIS --------- -[verse] -'git lost-found' - -DESCRIPTION ------------ - -*NOTE*: this command is deprecated. Use linkgit:git-fsck[1] with -the option '--lost-found' instead. - -Finds dangling commits and tags from the object database, and -creates refs to them in the .git/lost-found/ directory. Commits and -tags that dereference to commits are stored in .git/lost-found/commit, -and other objects are stored in .git/lost-found/other. - - -OUTPUT ------- -Prints to standard output the object names and one-line descriptions -of any commits or tags found. - -EXAMPLE -------- - -Suppose you run 'git tag -f' and mistype the tag to overwrite. -The ref to your tag is overwritten, but until you run 'git -prune', the tag itself is still there. - ------------- -$ git lost-found -[1ef2b196d909eed523d4f3c9bf54b78cdd6843c6] GIT 0.99.9c -... ------------- - -Also you can use gitk to browse how any tags found relate to each -other. - ------------- -$ gitk $(cd .git/lost-found/commit && echo ??*) ------------- - -After making sure you know which the object is the tag you are looking -for, you can reconnect it to your regular `refs` hierarchy by using -the `update-ref` command. - ------------- -$ git cat-file -t 1ef2b196 -tag -$ git cat-file tag 1ef2b196 -object fa41bbce8e38c67a218415de6cfa510c7e50032a -type commit -tag v0.99.9c -tagger Junio C Hamano <junkio@cox.net> 1131059594 -0800 - -GIT 0.99.9c - -This contains the following changes from the "master" branch, since -... -$ git update-ref refs/tags/not-lost-anymore 1ef2b196 -$ git rev-parse not-lost-anymore -1ef2b196d909eed523d4f3c9bf54b78cdd6843c6 ------------- - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt index c0856a6e0a..e26f01fb1d 100644 --- a/Documentation/git-ls-files.txt +++ b/Documentation/git-ls-files.txt @@ -185,15 +185,15 @@ specifies the format of exclude patterns. These exclude patterns come from these places, in order: - 1. The command line flag --exclude=<pattern> specifies a + 1. The command-line flag --exclude=<pattern> specifies a single pattern. Patterns are ordered in the same order they appear in the command line. - 2. The command line flag --exclude-from=<file> specifies a + 2. The command-line flag --exclude-from=<file> specifies a file containing a list of patterns. Patterns are ordered in the same order they appear in the file. - 3. The command line flag --exclude-per-directory=<name> specifies + 3. The command-line flag --exclude-per-directory=<name> specifies a name of the file in each directory 'git ls-files' examines, normally `.gitignore`. Files in deeper directories take precedence. Patterns are ordered in the diff --git a/Documentation/git-mailinfo.txt b/Documentation/git-mailinfo.txt index 164a3c6ede..0947084140 100644 --- a/Documentation/git-mailinfo.txt +++ b/Documentation/git-mailinfo.txt @@ -66,6 +66,11 @@ conversion, even with this flag. -n:: Disable all charset re-coding of the metadata. +-m:: +--message-id:: + Copy the Message-ID header at the end of the commit message. This + is useful in order to associate commits with mailing list discussions. + --scissors:: Remove everything in body before a scissors line. A line that mainly consists of scissors (either ">8" or "8<") and perforation diff --git a/Documentation/git-merge-base.txt b/Documentation/git-merge-base.txt index 87842e33f8..808426faac 100644 --- a/Documentation/git-merge-base.txt +++ b/Documentation/git-merge-base.txt @@ -13,6 +13,7 @@ SYNOPSIS 'git merge-base' [-a|--all] --octopus <commit>... 'git merge-base' --is-ancestor <commit> <commit> 'git merge-base' --independent <commit>... +'git merge-base' --fork-point <ref> [<commit>] DESCRIPTION ----------- @@ -24,8 +25,8 @@ that does not have any better common ancestor is a 'best common ancestor', i.e. a 'merge base'. Note that there can be more than one merge base for a pair of commits. -OPERATION MODE --------------- +OPERATION MODES +--------------- As the most common special case, specifying only two commits on the command line means computing the merge base between the given two commits. @@ -56,6 +57,14 @@ from linkgit:git-show-branch[1] when used with the `--merge-base` option. and exit with status 0 if true, or with status 1 if not. Errors are signaled by a non-zero status that is not 1. +--fork-point:: + Find the point at which a branch (or any history that leads + to <commit>) forked from another branch (or any reference) + <ref>. This does not just look for the common ancestor of + the two commits, but also takes into account the reflog of + <ref> to see if the history leading to <commit> forked from + an earlier incarnation of the branch <ref> (see discussion + on this mode below). OPTIONS ------- @@ -137,6 +146,31 @@ In modern git, you can say this in a more direct way: instead. +Discussion on fork-point mode +----------------------------- + +After working on the `topic` branch created with `git checkout -b +topic origin/master`, the history of remote-tracking branch +`origin/master` may have been rewound and rebuilt, leading to a +history of this shape: + + o---B1 + / + ---o---o---B2--o---o---o---B (origin/master) + \ + B3 + \ + Derived (topic) + +where `origin/master` used to point at commits B3, B2, B1 and now it +points at B, and your `topic` branch was started on top of it back +when `origin/master` was at B3. This mode uses the reflog of +`origin/master` to find B3 as the fork point, so that the `topic` +can be rebased on top of the updated `origin/master` by: + + $ fork_point=$(git merge-base --fork-point origin/master topic) + $ git rebase --onto origin/master $fork_point topic + See also -------- diff --git a/Documentation/git-merge-file.txt b/Documentation/git-merge-file.txt index d7db2a3737..d2fc12ec77 100644 --- a/Documentation/git-merge-file.txt +++ b/Documentation/git-merge-file.txt @@ -11,7 +11,7 @@ SYNOPSIS [verse] 'git merge-file' [-L <current-name> [-L <base-name> [-L <other-name>]]] [--ours|--theirs|--union] [-p|--stdout] [-q|--quiet] [--marker-size=<n>] - <current-file> <base-file> <other-file> + [--[no-]diff3] <current-file> <base-file> <other-file> DESCRIPTION @@ -66,6 +66,9 @@ OPTIONS -q:: Quiet; do not warn about conflicts. +--diff3:: + Show conflicts in "diff3" style. + --ours:: --theirs:: --union:: diff --git a/Documentation/git-merge-tree.txt b/Documentation/git-merge-tree.txt index c5f84b6495..58731c1942 100644 --- a/Documentation/git-merge-tree.txt +++ b/Documentation/git-merge-tree.txt @@ -13,7 +13,7 @@ SYNOPSIS DESCRIPTION ----------- -Reads three treeish, and output trivial merge results and +Reads three tree-ish, and output trivial merge results and conflicting stages to the standard output. This is similar to what three-way 'git read-tree -m' does, but instead of storing the results in the index, the command outputs the entries to the diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index 439545926e..273a1009be 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -10,7 +10,7 @@ SYNOPSIS -------- [verse] 'git merge' [-n] [--stat] [--no-commit] [--squash] [--[no-]edit] - [-s <strategy>] [-X <strategy-option>] [-S[<keyid>]] + [-s <strategy>] [-X <strategy-option>] [-S[<key-id>]] [--[no-]rerere-autoupdate] [-m <msg>] [<commit>...] 'git merge' <msg> HEAD <commit>... 'git merge' --abort @@ -101,10 +101,13 @@ commit or stash your changes before running 'git merge'. Specifying more than one commit will create a merge with more than two parents (affectionately called an Octopus merge). + -If no commit is given from the command line, and if `merge.defaultToUpstream` -configuration variable is set, merge the remote-tracking branches -that the current branch is configured to use as its upstream. +If no commit is given from the command line, merge the remote-tracking +branches that the current branch is configured to use as its upstream. See also the configuration section of this manual page. ++ +When `FETCH_HEAD` (and no other commit) is specified, the branches +recorded in the `.git/FETCH_HEAD` file by the previous invocation +of `git fetch` for merging are merged to the current branch. PRE-MERGE CHECKS @@ -233,7 +236,7 @@ Barbie's remark on your side. The only thing you can tell is that your side wants to say it is hard and you'd prefer to go shopping, while the other side wants to claim it is easy. -An alternative style can be used by setting the "merge.conflictstyle" +An alternative style can be used by setting the "merge.conflictStyle" configuration variable to "diff3". In "diff3" style, the above conflict may look like this: @@ -330,7 +333,7 @@ CONFIGURATION ------------- include::merge-config.txt[] -branch.<name>.mergeoptions:: +branch.<name>.mergeOptions:: Sets default options for merging into branch <name>. The syntax and supported options are the same as those of 'git merge', but option values containing whitespace characters are currently not supported. diff --git a/Documentation/git-mergetool.txt b/Documentation/git-mergetool.txt index 07137f252b..e846c2ed7f 100644 --- a/Documentation/git-mergetool.txt +++ b/Documentation/git-mergetool.txt @@ -71,11 +71,13 @@ success of the resolution after the custom tool has exited. --no-prompt:: Don't prompt before each invocation of the merge resolution program. + This is the default if the merge resolution program is + explicitly specified with the `--tool` option or with the + `merge.tool` configuration variable. --prompt:: - Prompt before each invocation of the merge resolution program. - This is the default behaviour; the option is provided to - override any configuration settings. + Prompt before each invocation of the merge resolution program + to give the user a chance to skip the path. TEMPORARY FILES --------------- diff --git a/Documentation/git-mv.txt b/Documentation/git-mv.txt index e93fcb49fd..e4531325cd 100644 --- a/Documentation/git-mv.txt +++ b/Documentation/git-mv.txt @@ -13,7 +13,7 @@ SYNOPSIS DESCRIPTION ----------- -This script is used to move or rename a file, directory or symlink. +Move or rename a file, directory or symlink. git mv [-v] [-f] [-n] [-k] <source> <destination> git mv [-v] [-f] [-n] [-k] <source> ... <destination directory> @@ -44,6 +44,26 @@ OPTIONS --verbose:: Report the names of files as they are moved. +SUBMODULES +---------- +Moving a submodule using a gitfile (which means they were cloned +with a Git version 1.7.8 or newer) will update the gitfile and +core.worktree setting to make the submodule work in the new location. +It also will attempt to update the submodule.<name>.path setting in +the linkgit:gitmodules[5] file and stage that file (unless -n is used). + +BUGS +---- +Each time a superproject update moves a populated submodule (e.g. when +switching between commits before and after the move) a stale submodule +checkout will remain in the old location and an empty directory will +appear in the new location. To populate the submodule again in the new +location the user will have to run "git submodule update" +afterwards. Removing the old directory is only safe when it uses a +gitfile, as otherwise the history of the submodule will be deleted +too. Both steps will be obsolete when recursive submodule update has +been implemented. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-name-rev.txt b/Documentation/git-name-rev.txt index 15b00e0991..ca28fb8e2a 100644 --- a/Documentation/git-name-rev.txt +++ b/Documentation/git-name-rev.txt @@ -10,7 +10,7 @@ SYNOPSIS -------- [verse] 'git name-rev' [--tags] [--refs=<pattern>] - ( --all | --stdin | <committish>... ) + ( --all | --stdin | <commit-ish>... ) DESCRIPTION ----------- diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt index 46ef0466be..a9a916f360 100644 --- a/Documentation/git-notes.txt +++ b/Documentation/git-notes.txt @@ -9,12 +9,12 @@ SYNOPSIS -------- [verse] 'git notes' [list [<object>]] -'git notes' add [-f] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>] +'git notes' add [-f] [--allow-empty] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>] 'git notes' copy [-f] ( --stdin | <from-object> <to-object> ) -'git notes' append [-F <file> | -m <msg> | (-c | -C) <object>] [<object>] -'git notes' edit [<object>] +'git notes' append [--allow-empty] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>] +'git notes' edit [--allow-empty] [<object>] 'git notes' show [<object>] -'git notes' merge [-v | -q] [-s <strategy> ] <notes_ref> +'git notes' merge [-v | -q] [-s <strategy> ] <notes-ref> 'git notes' merge --commit [-v | -q] 'git notes' merge --abort [-v | -q] 'git notes' remove [--ignore-missing] [--stdin] [<object>...] @@ -101,7 +101,7 @@ merge:: any) into the current notes ref (called "local"). + If conflicts arise and a strategy for automatically resolving -conflicting notes (see the -s/--strategy option) is not given, +conflicting notes (see the "NOTES MERGE STRATEGIES" section) is not given, the "manual" resolver is used. This resolver checks out the conflicting notes in a special worktree (`.git/NOTES_MERGE_WORKTREE`), and instructs the user to manually resolve the conflicts there. @@ -155,6 +155,10 @@ OPTIONS Like '-C', but with '-c' the editor is invoked, so that the user can further edit the note message. +--allow-empty:: + Allow an empty note object to be stored. The default behavior is + to automatically remove empty notes. + --ref <ref>:: Manipulate the notes tree in <ref>. This overrides 'GIT_NOTES_REF' and the "core.notesRef" configuration. The ref @@ -179,6 +183,7 @@ OPTIONS When merging notes, resolve notes conflicts using the given strategy. The following strategies are recognized: "manual" (default), "ours", "theirs", "union" and "cat_sort_uniq". + This option overrides the "notes.mergeStrategy" configuration setting. See the "NOTES MERGE STRATEGIES" section below for more information on each notes merge strategy. @@ -243,6 +248,9 @@ When done, the user can either finalize the merge with 'git notes merge --commit', or abort the merge with 'git notes merge --abort'. +Users may select an automated merge strategy from among the following using +either -s/--strategy option or configuring notes.mergeStrategy accordingly: + "ours" automatically resolves conflicting notes in favor of the local version (i.e. the current notes ref). @@ -287,7 +295,7 @@ arbitrary files using 'git hash-object': ------------ $ cc *.c $ blob=$(git hash-object -w a.out) -$ git notes --ref=built add -C "$blob" HEAD +$ git notes --ref=built add --allow-empty -C "$blob" HEAD ------------ (You cannot simply use `git notes --ref=built add -F a.out HEAD` @@ -306,6 +314,20 @@ core.notesRef:: This setting can be overridden through the environment and command line. +notes.mergeStrategy:: + Which merge strategy to choose by default when resolving notes + conflicts. Must be one of `manual`, `ours`, `theirs`, `union`, or + `cat_sort_uniq`. Defaults to `manual`. See "NOTES MERGE STRATEGIES" + section above for more information on each strategy. ++ +This setting can be overridden by passing the `--strategy` option. + +notes.<name>.mergeStrategy:: + Which merge strategy to choose when doing a notes merge into + refs/notes/<name>. This overrides the more general + "notes.mergeStrategy". See the "NOTES MERGE STRATEGIES" section above + for more information on each available strategy. + notes.displayRef:: Which ref (or refs, if a glob or specified more than once), in addition to the default set by `core.notesRef` or @@ -327,7 +349,8 @@ environment variable. notes.rewriteMode:: When copying notes during a rewrite, what to do if the target commit already has a note. Must be one of `overwrite`, - `concatenate`, and `ignore`. Defaults to `concatenate`. + `concatenate`, `cat_sort_uniq`, or `ignore`. Defaults to + `concatenate`. + This setting can be overridden with the `GIT_NOTES_REWRITE_MODE` environment variable. @@ -364,7 +387,7 @@ does not match any refs is silently ignored. 'GIT_NOTES_REWRITE_MODE':: When copying notes during a rewrite, what to do if the target commit already has a note. - Must be one of `overwrite`, `concatenate`, and `ignore`. + Must be one of `overwrite`, `concatenate`, `cat_sort_uniq`, or `ignore`. This overrides the `core.rewriteMode` setting. 'GIT_NOTES_REWRITE_REF':: @@ -375,16 +398,6 @@ does not match any refs is silently ignored. If not set in the environment, the list of notes to copy depends on the `notes.rewrite.<command>` and `notes.rewriteRef` settings. - -Author ------- -Written by Johannes Schindelin <johannes.schindelin@gmx.de> and -Johan Herland <johan@herland.net> - -Documentation -------------- -Documentation by Johannes Schindelin and Johan Herland - GIT --- Part of the linkgit:git[7] suite diff --git a/Documentation/git-p4.txt b/Documentation/git-p4.txt index 8cba16d67f..82aa5d6073 100644 --- a/Documentation/git-p4.txt +++ b/Documentation/git-p4.txt @@ -168,7 +168,8 @@ All commands except clone accept these options. --git-dir <dir>:: Set the 'GIT_DIR' environment variable. See linkgit:git[1]. ---verbose, -v:: +-v:: +--verbose:: Provide more progress information. Sync options @@ -224,9 +225,20 @@ Git repository: they can find the p4 branches in refs/heads. --max-changes <n>:: - Limit the number of imported changes to 'n'. Useful to - limit the amount of history when using the '@all' p4 revision - specifier. + Import at most 'n' changes, rather than the entire range of + changes included in the given revision specifier. A typical + usage would be use '@all' as the revision specifier, but then + to use '--max-changes 1000' to import only the last 1000 + revisions rather than the entire revision history. + +--changes-block-size <n>:: + The internal block size to use when converting a revision + specifier such as '@all' into a list of specific change + numbers. Instead of using a single call to 'p4 changes' to + find the full list of changes for the conversion, there are a + sequence of calls to 'p4 changes -m', each of which requests + one block of changes of the given size. The default block size + is 500, which should usually be suitable. --keep-path:: The mapping of file names from the p4 depot path to Git, by @@ -240,6 +252,9 @@ Git repository: Use a client spec to find the list of interesting files in p4. See the "CLIENT SPEC" section below. +-/ <path>:: + Exclude selected depot paths when cloning or syncing. + Clone options ~~~~~~~~~~~~~ These options can be used in an initial 'clone', along with the 'sync' @@ -253,9 +268,6 @@ options described above. --bare:: Perform a bare clone. See linkgit:git-clone[1]. --/ <path>:: - Exclude selected depot paths when cloning. - Submit options ~~~~~~~~~~~~~~ These options can be used to modify 'git p4 submit' behavior. @@ -279,7 +291,8 @@ These options can be used to modify 'git p4 submit' behavior. Export tags from Git as p4 labels. Tags found in Git are applied to the perforce working directory. ---dry-run, -n:: +-n:: +--dry-run:: Show just what commits would be submitted to p4; do not change state in Git or p4. diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index d94edcd4b4..bbea5294ca 100644 --- a/Documentation/git-pack-objects.txt +++ b/Documentation/git-pack-objects.txt @@ -13,7 +13,7 @@ SYNOPSIS [--no-reuse-delta] [--delta-base-offset] [--non-empty] [--local] [--incremental] [--window=<n>] [--depth=<n>] [--revs [--unpacked | --all]] [--stdout | base-name] - [--keep-true-parents] < object-list + [--shallow] [--keep-true-parents] < object-list DESCRIPTION @@ -51,8 +51,7 @@ base-name:: <base-name> to determine the name of the created file. When this option is used, the two files are written in <base-name>-<SHA-1>.{pack,idx} files. <SHA-1> is a hash - of the sorted object names to make the resulting filename - based on the pack content, and written to the standard + based on the pack content and is written to the standard output of the command. --stdout:: @@ -65,6 +64,8 @@ base-name:: the same way as 'git rev-list' with the `--objects` flag uses its `commit` arguments to build the list of objects it outputs. The objects on the resulting list are packed. + Besides revisions, `--not` or `--shallow <SHA-1>` lines are + also accepted. --unpacked:: This implies `--revs`. When processing the list of @@ -189,6 +190,11 @@ required objects and is thus unusable by Git without making it self-contained. Use `git index-pack --fix-thin` (see linkgit:git-index-pack[1]) to restore the self-contained property. +--shallow:: + Optimize a pack that will be provided to a client with a shallow + repository. This option, combined with --thin, can result in a + smaller pack at the cost of speed. + --delta-base-offset:: A packed archive can express the base object of a delta as either a 20-byte object name or as an offset in the diff --git a/Documentation/git-patch-id.txt b/Documentation/git-patch-id.txt index 312c3b1fe5..31efc587ee 100644 --- a/Documentation/git-patch-id.txt +++ b/Documentation/git-patch-id.txt @@ -8,14 +8,14 @@ git-patch-id - Compute unique ID for a patch SYNOPSIS -------- [verse] -'git patch-id' < <patch> +'git patch-id' [--stable | --unstable] < <patch> DESCRIPTION ----------- -A "patch ID" is nothing but a SHA-1 of the diff associated with a patch, with -whitespace and line numbers ignored. As such, it's "reasonably stable", but at -the same time also reasonably unique, i.e., two patches that have the same "patch -ID" are almost guaranteed to be the same thing. +A "patch ID" is nothing but a sum of SHA-1 of the file diffs associated with a +patch, with whitespace and line numbers ignored. As such, it's "reasonably +stable", but at the same time also reasonably unique, i.e., two patches that +have the same "patch ID" are almost guaranteed to be the same thing. IOW, you can use this thing to look for likely duplicate commits. @@ -27,6 +27,33 @@ This can be used to make a mapping from patch ID to commit ID. OPTIONS ------- + +--stable:: + Use a "stable" sum of hashes as the patch ID. With this option: + - Reordering file diffs that make up a patch does not affect the ID. + In particular, two patches produced by comparing the same two trees + with two different settings for "-O<orderfile>" result in the same + patch ID signature, thereby allowing the computed result to be used + as a key to index some meta-information about the change between + the two trees; + + - Result is different from the value produced by git 1.9 and older + or produced when an "unstable" hash (see --unstable below) is + configured - even when used on a diff output taken without any use + of "-O<orderfile>", thereby making existing databases storing such + "unstable" or historical patch-ids unusable. + + This is the default if patchid.stable is set to true. + +--unstable:: + Use an "unstable" hash as the patch ID. With this option, + the result produced is compatible with the patch-id value produced + by git 1.9 and older. Users with pre-existing databases storing + patch-ids produced by git 1.9 and older (who do not deal with reordered + patches) may want to use this option. + + This is the default. + <patch>:: The diff to create the ID of. diff --git a/Documentation/git-peek-remote.txt b/Documentation/git-peek-remote.txt deleted file mode 100644 index 87ea3fb054..0000000000 --- a/Documentation/git-peek-remote.txt +++ /dev/null @@ -1,43 +0,0 @@ -git-peek-remote(1) -================== - -NAME ----- -git-peek-remote - List the references in a remote repository - - -SYNOPSIS --------- -[verse] -'git peek-remote' [--upload-pack=<git-upload-pack>] [<host>:]<directory> - -DESCRIPTION ------------ -This command is deprecated; use 'git ls-remote' instead. - -OPTIONS -------- ---upload-pack=<git-upload-pack>:: - Use this to specify the path to 'git-upload-pack' on the - remote side, if it is not found on your $PATH. Some - installations of sshd ignores the user's environment - setup scripts for login shells (e.g. .bash_profile) and - your privately installed git may not be found on the system - default $PATH. Another workaround suggested is to set - up your $PATH in ".bashrc", but this flag is for people - who do not want to pay the overhead for non-interactive - shells, but prefer having a lean .bashrc file (they set most of - the things up in .bash_profile). - -<host>:: - A remote host that houses the repository. When this - part is specified, 'git-upload-pack' is invoked via - ssh. - -<directory>:: - The repository to sync from. - - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-prune-packed.txt b/Documentation/git-prune-packed.txt index 6738055bd3..9fed59a317 100644 --- a/Documentation/git-prune-packed.txt +++ b/Documentation/git-prune-packed.txt @@ -1,5 +1,5 @@ git-prune-packed(1) -===================== +=================== NAME ---- diff --git a/Documentation/git-prune.txt b/Documentation/git-prune.txt index bf824108c1..7a493c80f7 100644 --- a/Documentation/git-prune.txt +++ b/Documentation/git-prune.txt @@ -24,6 +24,8 @@ objects unreachable from any of these head objects from the object database. In addition, it prunes the unpacked objects that are also found in packs by running 'git prune-packed'. +It also removes entries from .git/shallow that are not reachable by +any ref. Note that unreachable, packed objects will remain. If this is not desired, see linkgit:git-repack[1]. @@ -54,7 +56,7 @@ OPTIONS EXAMPLE ------- -To prune objects not used by your repository nor another that +To prune objects not used by your repository or another that borrows from your repository via its `.git/objects/info/alternates`: diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt index 6ef8d599d3..93c72a29ce 100644 --- a/Documentation/git-pull.txt +++ b/Documentation/git-pull.txt @@ -42,6 +42,8 @@ Assume the following history exists and the current branch is A---B---C master on origin / D---E---F---G master + ^ + origin/master in your repository ------------ Then "`git pull`" will fetch and replay the changes from the remote @@ -51,7 +53,7 @@ result in a new commit along with the names of the two parent commits and a log message from the user describing the changes. ------------ - A---B---C remotes/origin/master + A---B---C origin/master / \ D---E---F---G---H master ------------ @@ -72,9 +74,6 @@ pulling or stash them away with linkgit:git-stash[1]. OPTIONS ------- -Options meant for 'git pull' itself and the underlying 'git merge' -must be given before the options meant for 'git fetch'. - -q:: --quiet:: This is passed to both underlying git-fetch to squelch reporting of @@ -97,19 +96,24 @@ must be given before the options meant for 'git fetch'. Options related to merging ~~~~~~~~~~~~~~~~~~~~~~~~~~ -include::merge-options.txt[] - :git-pull: 1 +include::merge-options.txt[] + -r:: ---rebase:: - Rebase the current branch on top of the upstream branch after - fetching. If there is a remote-tracking branch corresponding to - the upstream branch and the upstream branch was rebased since last - fetched, the rebase uses that information to avoid rebasing - non-local changes. +--rebase[=false|true|preserve]:: + When true, rebase the current branch on top of the upstream + branch after fetching. If there is a remote-tracking branch + corresponding to the upstream branch and the upstream branch + was rebased since last fetched, the rebase uses that information + to avoid rebasing non-local changes. ++ +When set to preserve, rebase with the `--preserve-merges` option passed +to `git rebase` so that locally created merge commits will not be flattened. ++ +When false, merge the current branch into the upstream branch. + -See `pull.rebase`, `branch.<name>.rebase` and `branch.autosetuprebase` in +See `pull.rebase`, `branch.<name>.rebase` and `branch.autoSetupRebase` in linkgit:git-config[1] if you want to make `git pull` always use `--rebase` instead of merging. + diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index f7dfe48d28..1495e3416c 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -9,8 +9,11 @@ git-push - Update remote refs along with associated objects SYNOPSIS -------- [verse] -'git push' [--all | --mirror | --tags] [--follow-tags] [-n | --dry-run] [--receive-pack=<git-receive-pack>] - [--repo=<repository>] [-f | --force] [--prune] [-v | --verbose] [-u | --set-upstream] +'git push' [--all | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=<git-receive-pack>] + [--repo=<repository>] [-f | --force] [--prune] [-v | --verbose] + [-u | --set-upstream] + [--[no-]signed|--sign=(true|false|if-asked)] + [--force-with-lease[=<refname>[:<expect>]]] [--no-verify] [<repository> [<refspec>...]] DESCRIPTION @@ -32,7 +35,7 @@ When the command line does not specify what to push with `<refspec>...` arguments or `--all`, `--mirror`, `--tags` options, the command finds the default `<refspec>` by consulting `remote.*.push` configuration, and if it is not found, honors `push.default` configuration to decide -what to push (See gitlink:git-config[1] for the meaning of `push.default`). +what to push (See linkgit:git-config[1] for the meaning of `push.default`). OPTIONS[[OPTIONS]] @@ -55,8 +58,13 @@ it can be any arbitrary "SHA-1 expression", such as `master~4` or + The <dst> tells which ref on the remote side is updated with this push. Arbitrary expressions cannot be used here, an actual ref must -be named. If `:`<dst> is omitted, the same ref as <src> will be -updated. +be named. +If `git push [<repository>]` without any `<refspec>` argument is set to +update some ref at the destination with `<src>` with +`remote.<repository>.push` configuration variable, `:<dst>` part can +be omitted---such a push will update a ref that `<src>` normally updates +without any `<refspec>` on the command line. Otherwise, missing +`:<dst>` means to update the same ref as the `<src>`. + The object referenced by <src> is used to update the <dst> reference on the remote side. By default this is only allowed if <dst> is not @@ -77,8 +85,8 @@ the local side, the remote side is updated if a branch of the same name already exists on the remote side. --all:: - Instead of naming each ref to push, specifies that all - refs under `refs/heads/` be pushed. + Push all branches (i.e. refs under `refs/heads/`); cannot be + used with other <refspec>. --prune:: Remove remote branches that don't have a local counterpart. For example @@ -120,8 +128,26 @@ already exists on the remote side. --follow-tags:: Push all the refs that would be pushed without this option, and also push annotated tags in `refs/tags` that are missing - from the remote but are pointing at committish that are - reachable from the refs being pushed. + from the remote but are pointing at commit-ish that are + reachable from the refs being pushed. This can also be specified + with configuration variable 'push.followTags'. For more + information, see 'push.followTags' in linkgit:git-config[1]. + +--[no-]signed:: +--sign=(true|false|if-asked):: + GPG-sign the push request to update refs on the receiving + side, to allow it to be checked by the hooks and/or be + logged. If `false` or `--no-signed`, no signing will be + attempted. If `true` or `--signed`, the push will fail if the + server does not support signed pushes. If set to `if-asked`, + sign if and only if the server supports signed pushes. The push + will also fail if the actual call to `gpg --sign` fails. See + linkgit:git-receive-pack[1] for the details on the receiving end. + +--[no-]atomic:: + Use an atomic transaction on the remote side if available. + Either all refs are updated, or on error, no refs are updated. + If the server does not support atomic pushes the push will fail. --receive-pack=<git-receive-pack>:: --exec=<git-receive-pack>:: @@ -130,39 +156,77 @@ already exists on the remote side. repository over ssh, and you do not have the program in a directory on the default $PATH. +--[no-]force-with-lease:: +--force-with-lease=<refname>:: +--force-with-lease=<refname>:<expect>:: + Usually, "git push" refuses to update a remote ref that is + not an ancestor of the local ref used to overwrite it. ++ +This option overrides this restriction if the current value of the +remote ref is the expected value. "git push" fails otherwise. ++ +Imagine that you have to rebase what you have already published. +You will have to bypass the "must fast-forward" rule in order to +replace the history you originally published with the rebased history. +If somebody else built on top of your original history while you are +rebasing, the tip of the branch at the remote may advance with her +commit, and blindly pushing with `--force` will lose her work. ++ +This option allows you to say that you expect the history you are +updating is what you rebased and want to replace. If the remote ref +still points at the commit you specified, you can be sure that no +other people did anything to the ref. It is like taking a "lease" on +the ref without explicitly locking it, and the remote ref is updated +only if the "lease" is still valid. ++ +`--force-with-lease` alone, without specifying the details, will protect +all remote refs that are going to be updated by requiring their +current value to be the same as the remote-tracking branch we have +for them. ++ +`--force-with-lease=<refname>`, without specifying the expected value, will +protect the named ref (alone), if it is going to be updated, by +requiring its current value to be the same as the remote-tracking +branch we have for it. ++ +`--force-with-lease=<refname>:<expect>` will protect the named ref (alone), +if it is going to be updated, by requiring its current value to be +the same as the specified value <expect> (which is allowed to be +different from the remote-tracking branch we have for the refname, +or we do not even have to have such a remote-tracking branch when +this form is used). ++ +Note that all forms other than `--force-with-lease=<refname>:<expect>` +that specifies the expected current value of the ref explicitly are +still experimental and their semantics may change as we gain experience +with this feature. ++ +"--no-force-with-lease" will cancel all the previous --force-with-lease on the +command line. + -f:: --force:: Usually, the command refuses to update a remote ref that is not an ancestor of the local ref used to overwrite it. - This flag disables the check. This can cause the - remote repository to lose commits; use it with care. - Note that `--force` applies to all the refs that are pushed, - hence using it with `push.default` set to `matching` or with - multiple push destinations configured with `remote.*.push` - may overwrite refs other than the current branch (including - local refs that are strictly behind their remote counterpart). - To force a push to only one branch, use a `+` in front of the - refspec to push (e.g `git push origin +master` to force a push - to the `master` branch). See the `<refspec>...` section above - for details. - ---repo=<repository>:: - This option is only relevant if no <repository> argument is - passed in the invocation. In this case, 'git push' derives the - remote name from the current branch: If it tracks a remote - branch, then that remote repository is pushed to. Otherwise, - the name "origin" is used. For this latter case, this option - can be used to override the name "origin". In other words, - the difference between these two commands + Also, when `--force-with-lease` option is used, the command refuses + to update a remote ref whose current value does not match + what is expected. + --------------------------- -git push public #1 -git push --repo=public #2 --------------------------- +This flag disables these checks, and can cause the remote repository +to lose commits; use it with care. + -is that #1 always pushes to "public" whereas #2 pushes to "public" -only if the current branch does not track a remote branch. This is -useful if you write an alias or script around 'git push'. +Note that `--force` applies to all the refs that are pushed, hence +using it with `push.default` set to `matching` or with multiple push +destinations configured with `remote.*.push` may overwrite refs +other than the current branch (including local refs that are +strictly behind their remote counterpart). To force a push to only +one branch, use a `+` in front of the refspec to push (e.g `git push +origin +master` to force a push to the `master` branch). See the +`<refspec>...` section above for details. + +--repo=<repository>:: + This option is equivalent to the <repository> argument. If both + are specified, the command-line argument takes precedence. -u:: --set-upstream:: @@ -206,8 +270,8 @@ useful if you write an alias or script around 'git push'. --[no-]verify:: Toggle the pre-push hook (see linkgit:githooks[5]). The - default is \--verify, giving the hook a chance to prevent the - push. With \--no-verify, the hook is bypassed completely. + default is --verify, giving the hook a chance to prevent the + push. With --no-verify, the hook is bypassed completely. include::urls-remotes.txt[] @@ -325,7 +389,7 @@ will now start building on top of B. The command by default does not allow an update that is not a fast-forward to prevent such loss of history. -If you do not want to lose your work (history from X to B) nor the work by +If you do not want to lose your work (history from X to B) or the work by the other person (history from X to A), you would need to first fetch the history from the repository, create a history that contains changes done by both parties, and push the result back. @@ -382,8 +446,10 @@ Examples configured for the current branch). `git push origin`:: - Without additional configuration, works like - `git push origin :`. + Without additional configuration, pushes the current branch to + the configured upstream (`remote.origin.merge` configuration + variable) if it has the same name as the current branch, and + errors out without pushing otherwise. + The default behavior of this command when no <refspec> is given can be configured by setting the `push` option of the remote, or the `push.default` diff --git a/Documentation/git-quiltimport.txt b/Documentation/git-quiltimport.txt index a356196586..d64388cb8e 100644 --- a/Documentation/git-quiltimport.txt +++ b/Documentation/git-quiltimport.txt @@ -1,5 +1,5 @@ git-quiltimport(1) -================ +================== NAME ---- diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index c4bde6509e..fa1d557e5b 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -57,7 +57,7 @@ OPTIONS -n:: --dry-run:: Check if the command would error out, without updating the index - nor the files in the working tree for real. + or the files in the working tree for real. -v:: Show the progress of checking files out. @@ -283,7 +283,7 @@ merge. The different stages represent the "result tree" (stage 0, aka you are trying to merge (stage 2 and 3 respectively). The order of stages 1, 2 and 3 (hence the order of three -<tree-ish> command line arguments) are significant when you +<tree-ish> command-line arguments) are significant when you start a 3-way merge with an index file that is already populated. Here is an outline of how the algorithm works: diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 6b2e1c86ab..ca039546a4 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -9,7 +9,7 @@ SYNOPSIS -------- [verse] 'git rebase' [-i | --interactive] [options] [--exec <cmd>] [--onto <newbase>] - [<upstream>] [<branch>] + [<upstream> [<branch>]] 'git rebase' [-i | --interactive] [options] [--exec <cmd>] [--onto <newbase>] --root [<branch>] 'git rebase' --continue | --skip | --abort | --edit-todo @@ -21,15 +21,17 @@ If <branch> is specified, 'git rebase' will perform an automatic it remains on the current branch. If <upstream> is not specified, the upstream configured in -branch.<name>.remote and branch.<name>.merge options will be used; see -linkgit:git-config[1] for details. If you are currently not on any -branch or if the current branch does not have a configured upstream, -the rebase will abort. +branch.<name>.remote and branch.<name>.merge options will be used (see +linkgit:git-config[1] for details) and the `--fork-point` option is +assumed. If you are currently not on any branch or if the current +branch does not have a configured upstream, the rebase will abort. All changes made by commits in the current branch but that are not in <upstream> are saved to a temporary area. This is the same set -of commits that would be shown by `git log <upstream>..HEAD` (or -`git log HEAD`, if --root is specified). +of commits that would be shown by `git log <upstream>..HEAD`; or by +`git log 'fork_point'..HEAD`, if `--fork-point` is active (see the +description on `--fork-point` below); or by `git log HEAD`, if the +`--root` option is specified. The current branch is reset to <upstream>, or <newbase> if the --onto option was supplied. This has the exact same effect as @@ -78,7 +80,7 @@ remain the checked-out branch. If the upstream branch already contains a change you have made (e.g., because you mailed a patch which was applied upstream), then that commit will be skipped. For example, running `git rebase master` on the -following history (in which A' and A introduce the same set of changes, +following history (in which `A'` and `A` introduce the same set of changes, but have different committer information): ------------ @@ -205,12 +207,21 @@ rebase.stat:: Whether to show a diffstat of what changed upstream since the last rebase. False by default. -rebase.autosquash:: +rebase.autoSquash:: If set to true enable '--autosquash' option by default. -rebase.autostash:: +rebase.autoStash:: If set to true enable '--autostash' option by default. +rebase.missingCommitsCheck:: + If set to "warn", print warnings about removed commits in + interactive mode. If set to "error", print the warnings and + stop the rebase. If set to "ignore", no checking is + done. "ignore" by default. + +rebase.instructionFormat:: + Custom commit list format to use during an '--interactive' rebase. + OPTIONS ------- --onto <newbase>:: @@ -281,6 +292,10 @@ which makes little sense. specified, `-s recursive`. Note the reversal of 'ours' and 'theirs' as noted above for the `-m` option. +-S[<keyid>]:: +--gpg-sign[=<keyid>]:: + GPG-sign commits. + -q:: --quiet:: Be quiet. Implies --no-stat. @@ -312,17 +327,29 @@ which makes little sense. -f:: --force-rebase:: - Force the rebase even if the current branch is a descendant - of the commit you are rebasing onto. Normally non-interactive rebase will - exit with the message "Current branch is up to date" in such a - situation. - Incompatible with the --interactive option. + Force a rebase even if the current branch is up-to-date and + the command without `--force` would return without doing anything. + You may find this (or --no-ff with an interactive rebase) helpful after reverting a topic branch merge, as this option recreates the topic branch with fresh commits so it can be remerged successfully without needing to "revert the reversion" (see the -link:howto/revert-a-faulty-merge.txt[revert-a-faulty-merge How-To] for details). +link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details). + +--fork-point:: +--no-fork-point:: + Use reflog to find a better common ancestor between <upstream> + and <branch> when calculating which commits have been + introduced by <branch>. ++ +When --fork-point is active, 'fork_point' will be used instead of +<upstream> to calculate the set of commits to rebase, where +'fork_point' is the result of `git merge-base --fork-point <upstream> +<branch>` command (see linkgit:git-merge-base[1]). If 'fork_point' +ends up being empty, the <upstream> will be used as a fallback. ++ +If either <upstream> or --root is given on the command line, then the +default is `--no-fork-point`, otherwise the default is `--fork-point`. --ignore-whitespace:: --whitespace=<option>:: @@ -341,10 +368,16 @@ link:howto/revert-a-faulty-merge.txt[revert-a-faulty-merge How-To] for details). Make a list of the commits which are about to be rebased. Let the user edit that list before rebasing. This mode can also be used to split commits (see SPLITTING COMMITS below). ++ +The commit list format can be changed by setting the configuration option +rebase.instructionFormat. A customized instruction format will automatically +have the long commit hash prepended to the format. -p:: --preserve-merges:: - Instead of ignoring merges, try to recreate them. + Recreate merge commits instead of flattening the history by replaying + commits a merge commit introduces. Merge conflict resolutions or manual + amendments to merge commits are not preserved. + This uses the `--interactive` machinery internally, but combining it with the `--interactive` option explicitly is generally not a good @@ -396,7 +429,7 @@ squash/fixup series. This option is only valid when the '--interactive' option is used. + If the '--autosquash' option is enabled by default using the -configuration variable `rebase.autosquash`, this option can be +configuration variable `rebase.autoSquash`, this option can be used to override and disable this setting. --[no-]autostash:: @@ -416,7 +449,7 @@ Without --interactive, this is a synonym for --force-rebase. You may find this helpful after reverting a topic branch merge, as this option recreates the topic branch with fresh commits so it can be remerged successfully without needing to "revert the reversion" (see the -link:howto/revert-a-faulty-merge.txt[revert-a-faulty-merge How-To] for details). +link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details). include::merge-strategies.txt[] @@ -494,6 +527,9 @@ rebasing. If you just want to edit the commit message for a commit, replace the command "pick" with the command "reword". +To drop a commit, replace the command "pick" with "drop", or just +delete the matching line. + If you want to fold two or more commits into one, replace the command "pick" for the second and subsequent commits with "squash" or "fixup". If the commits had different authors, the folded commit will be diff --git a/Documentation/git-receive-pack.txt b/Documentation/git-receive-pack.txt index b1f7dc643a..000ee8dba2 100644 --- a/Documentation/git-receive-pack.txt +++ b/Documentation/git-receive-pack.txt @@ -53,6 +53,56 @@ the update. Refs to be created will have sha1-old equal to 0\{40}, while refs to be deleted will have sha1-new equal to 0\{40}, otherwise sha1-old and sha1-new should be valid objects in the repository. +When accepting a signed push (see linkgit:git-push[1]), the signed +push certificate is stored in a blob and an environment variable +`GIT_PUSH_CERT` can be consulted for its object name. See the +description of `post-receive` hook for an example. In addition, the +certificate is verified using GPG and the result is exported with +the following environment variables: + +`GIT_PUSH_CERT_SIGNER`:: + The name and the e-mail address of the owner of the key that + signed the push certificate. + +`GIT_PUSH_CERT_KEY`:: + The GPG key ID of the key that signed the push certificate. + +`GIT_PUSH_CERT_STATUS`:: + The status of GPG verification of the push certificate, + using the same mnemonic as used in `%G?` format of `git log` + family of commands (see linkgit:git-log[1]). + +`GIT_PUSH_CERT_NONCE`:: + The nonce string the process asked the signer to include + in the push certificate. If this does not match the value + recorded on the "nonce" header in the push certificate, it + may indicate that the certificate is a valid one that is + being replayed from a separate "git push" session. + +`GIT_PUSH_CERT_NONCE_STATUS`:: +`UNSOLICITED`;; + "git push --signed" sent a nonce when we did not ask it to + send one. +`MISSING`;; + "git push --signed" did not send any nonce header. +`BAD`;; + "git push --signed" sent a bogus nonce. +`OK`;; + "git push --signed" sent the nonce we asked it to send. +`SLOP`;; + "git push --signed" sent a nonce different from what we + asked it to send now, but in a previous session. See + `GIT_PUSH_CERT_NONCE_SLOP` environment variable. + +`GIT_PUSH_CERT_NONCE_SLOP`:: + "git push --signed" sent a nonce different from what we + asked it to send now, but in a different session whose + starting time is different by this many seconds from the + current session. Only meaningful when + `GIT_PUSH_CERT_NONCE_STATUS` says `SLOP`. + Also read about `receive.certNonceSlop` variable in + linkgit:git-config[1]. + This hook is called before any refname is updated and before any fast-forward checks are performed. @@ -101,9 +151,14 @@ the update. Refs that were created will have sha1-old equal to 0\{40}, otherwise sha1-old and sha1-new should be valid objects in the repository. +The `GIT_PUSH_CERT*` environment variables can be inspected, just as +in `pre-receive` hook, after accepting a signed push. + Using this hook, it is easy to generate mails describing the updates to the repository. This example script sends one mail message per -ref listing the commits pushed to the repository: +ref listing the commits pushed to the repository, and logs the push +certificates of signed pushes with good signatures to a logger +service: #!/bin/sh # mail out commit update information. @@ -119,6 +174,14 @@ ref listing the commits pushed to the repository: fi | mail -s "Changes to ref $ref" commit-list@mydomain done + # log signed push certificate, if any + if test -n "${GIT_PUSH_CERT-}" && test ${GIT_PUSH_CERT_STATUS} = G + then + ( + echo expected nonce is ${GIT_PUSH_NONCE} + git cat-file blob ${GIT_PUSH_CERT} + ) | mail -s "push certificate from $GIT_PUSH_CERT_SIGNER" push-log@mydomain + fi exit 0 The exit code from this hook invocation is ignored, however a diff --git a/Documentation/git-reflog.txt b/Documentation/git-reflog.txt index 70791b9fd8..44c736f1a8 100644 --- a/Documentation/git-reflog.txt +++ b/Documentation/git-reflog.txt @@ -17,85 +17,117 @@ The command takes various subcommands, and different options depending on the subcommand: [verse] -'git reflog expire' [--dry-run] [--stale-fix] [--verbose] - [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>... -'git reflog delete' ref@\{specifier\}... 'git reflog' ['show'] [log-options] [<ref>] +'git reflog expire' [--expire=<time>] [--expire-unreachable=<time>] + [--rewrite] [--updateref] [--stale-fix] + [--dry-run] [--verbose] [--all | <refs>...] +'git reflog delete' [--rewrite] [--updateref] + [--dry-run] [--verbose] ref@\{specifier\}... +'git reflog exists' <ref> + +Reference logs, or "reflogs", record when the tips of branches and +other references were updated in the local repository. Reflogs are +useful in various Git commands, to specify the old value of a +reference. For example, `HEAD@{2}` means "where HEAD used to be two +moves ago", `master@{one.week.ago}` means "where master used to point +to one week ago in this local repository", and so on. See +linkgit:gitrevisions[7] for more details. + +This command manages the information recorded in the reflogs. + +The "show" subcommand (which is also the default, in the absence of +any subcommands) shows the log of the reference provided in the +command-line (or `HEAD`, by default). The reflog covers all recent +actions, and in addition the `HEAD` reflog records branch switching. +`git reflog show` is an alias for `git log -g --abbrev-commit +--pretty=oneline`; see linkgit:git-log[1] for more information. + +The "expire" subcommand prunes older reflog entries. Entries older +than `expire` time, or entries older than `expire-unreachable` time +and not reachable from the current tip, are removed from the reflog. +This is typically not used directly by end users -- instead, see +linkgit:git-gc[1]. + +The "delete" subcommand deletes single entries from the reflog. Its +argument must be an _exact_ entry (e.g. "`git reflog delete +master@{2}`"). This subcommand is also typically not used directly by +end users. + +The "exists" subcommand checks whether a ref has a reflog. It exits +with zero status if the reflog exists, and non-zero status if it does +not. -Reflog is a mechanism to record when the tip of branches are -updated. This command is to manage the information recorded in it. - -The subcommand "expire" is used to prune older reflog entries. -Entries older than `expire` time, or entries older than -`expire-unreachable` time and not reachable from the current -tip, are removed from the reflog. This is typically not used -directly by the end users -- instead, see linkgit:git-gc[1]. - -The subcommand "show" (which is also the default, in the absence of any -subcommands) will take all the normal log options, and show the log of -the reference provided in the command-line (or `HEAD`, by default). -The reflog will cover all recent actions (HEAD reflog records branch switching -as well). It is an alias for `git log -g --abbrev-commit --pretty=oneline`; -see linkgit:git-log[1]. +OPTIONS +------- -The reflog is useful in various Git commands, to specify the old value -of a reference. For example, `HEAD@{2}` means "where HEAD used to be -two moves ago", `master@{one.week.ago}` means "where master used to -point to one week ago", and so on. See linkgit:gitrevisions[7] for -more details. +Options for `show` +~~~~~~~~~~~~~~~~~~ -To delete single entries from the reflog, use the subcommand "delete" -and specify the _exact_ entry (e.g. "`git reflog delete master@{2}`"). +`git reflog show` accepts any of the options accepted by `git log`. -OPTIONS -------- +Options for `expire` +~~~~~~~~~~~~~~~~~~~~ ---stale-fix:: - This revamps the logic -- the definition of "broken commit" - becomes: a commit that is not reachable from any of the refs and - there is a missing object among the commit, tree, or blob - objects reachable from it that is not reachable from any of the - refs. -+ -This computation involves traversing all the reachable objects, i.e. it -has the same cost as 'git prune'. Fortunately, once this is run, we -should not have to ever worry about missing objects, because the current -prune and pack-objects know about reflogs and protect objects referred by -them. +--all:: + Process the reflogs of all references. --expire=<time>:: - Entries older than this time are pruned. Without the - option it is taken from configuration `gc.reflogExpire`, - which in turn defaults to 90 days. --expire=all prunes - entries regardless of their age; --expire=never turns off - pruning of reachable entries (but see --expire-unreachable). + Prune entries older than the specified time. If this option is + not specified, the expiration time is taken from the + configuration setting `gc.reflogExpire`, which in turn + defaults to 90 days. `--expire=all` prunes entries regardless + of their age; `--expire=never` turns off pruning of reachable + entries (but see `--expire-unreachable`). --expire-unreachable=<time>:: - Entries older than this time and not reachable from - the current tip of the branch are pruned. Without the - option it is taken from configuration - `gc.reflogExpireUnreachable`, which in turn defaults to - 30 days. --expire-unreachable=all prunes unreachable - entries regardless of their age; --expire-unreachable=never + Prune entries older than `<time>` that are not reachable from + the current tip of the branch. If this option is not + specified, the expiration time is taken from the configuration + setting `gc.reflogExpireUnreachable`, which in turn defaults + to 30 days. `--expire-unreachable=all` prunes unreachable + entries regardless of their age; `--expire-unreachable=never` turns off early pruning of unreachable entries (but see - --expire). - ---all:: - Instead of listing <refs> explicitly, prune all refs. + `--expire`). --updateref:: - Update the ref with the sha1 of the top reflog entry (i.e. - <ref>@\{0\}) after expiring or deleting. + Update the reference to the value of the top reflog entry (i.e. + <ref>@\{0\}) if the previous top entry was pruned. (This + option is ignored for symbolic references.) --rewrite:: - While expiring or deleting, adjust each reflog entry to ensure - that the `old` sha1 field points to the `new` sha1 field of the - previous entry. + If a reflog entry's predecessor is pruned, adjust its "old" + SHA-1 to be equal to the "new" SHA-1 field of the entry that + now precedes it. + +--stale-fix:: + Prune any reflog entries that point to "broken commits". A + broken commit is a commit that is not reachable from any of + the reference tips and that refers, directly or indirectly, to + a missing commit, tree, or blob object. ++ +This computation involves traversing all the reachable objects, i.e. it +has the same cost as 'git prune'. It is primarily intended to fix +corruption caused by garbage collecting using older versions of Git, +which didn't protect objects referred to by reflogs. + +-n:: +--dry-run:: + Do not actually prune any entries; just show what would have + been pruned. --verbose:: Print extra information on screen. + +Options for `delete` +~~~~~~~~~~~~~~~~~~~~ + +`git reflog delete` accepts options `--updateref`, `--rewrite`, `-n`, +`--dry-run`, and `--verbose`, with the same meanings as when they are +used with `expire`. + + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-remote-ext.txt b/Documentation/git-remote-ext.txt index 8cfc748ae2..b25d0b5996 100644 --- a/Documentation/git-remote-ext.txt +++ b/Documentation/git-remote-ext.txt @@ -116,10 +116,9 @@ begins with `ext::`. Examples: determined by the helper using environment variables (see above). -Documentation --------------- -Documentation by Ilari Liusvaara, Jonathan Nieder and the Git list -<git@vger.kernel.org> +SEE ALSO +-------- +linkgit:gitremote-helpers[1] GIT --- diff --git a/Documentation/git-remote-fd.txt b/Documentation/git-remote-fd.txt index 933c2adaf6..e700bafa47 100644 --- a/Documentation/git-remote-fd.txt +++ b/Documentation/git-remote-fd.txt @@ -50,9 +50,9 @@ EXAMPLES `git push fd::7,8/bar master`:: Same as above. -Documentation --------------- -Documentation by Ilari Liusvaara and the Git list <git@vger.kernel.org> +SEE ALSO +-------- +linkgit:gitremote-helpers[1] GIT --- diff --git a/Documentation/git-remote.txt b/Documentation/git-remote.txt index 9c3e3bf83a..4c6d6de7b7 100644 --- a/Documentation/git-remote.txt +++ b/Documentation/git-remote.txt @@ -3,7 +3,7 @@ git-remote(1) NAME ---- -git-remote - manage set of tracked repositories +git-remote - Manage set of tracked repositories SYNOPSIS @@ -13,7 +13,7 @@ SYNOPSIS 'git remote add' [-t <branch>] [-m <master>] [-f] [--[no-]tags] [--mirror=<fetch|push>] <name> <url> 'git remote rename' <old> <new> 'git remote remove' <name> -'git remote set-head' <name> (-a | -d | <branch>) +'git remote set-head' <name> (-a | --auto | -d | --delete | <branch>) 'git remote set-branches' [--add] <name> <branch>... 'git remote set-url' [--push] <name> <newurl> [<oldurl>] 'git remote set-url --add' [--push] <name> <newurl> @@ -58,6 +58,9 @@ remote repository. With `--no-tags` option, `git fetch <name>` does not import tags from the remote repository. + +By default, only tags on fetched branches are imported +(see linkgit:git-fetch[1]). ++ With `-t <branch>` option, instead of the default glob refspec for the remote to track all branches under the `refs/remotes/<name>/` namespace, a refspec to track only `<branch>` @@ -101,9 +104,9 @@ branch. For example, if the default branch for `origin` is set to `master`, then `origin` may be specified wherever you would normally specify `origin/master`. + -With `-d`, the symbolic ref `refs/remotes/<name>/HEAD` is deleted. +With `-d` or `--delete`, the symbolic ref `refs/remotes/<name>/HEAD` is deleted. + -With `-a`, the remote is queried to determine its `HEAD`, then the +With `-a` or `--auto`, the remote is queried to determine its `HEAD`, then the symbolic-ref `refs/remotes/<name>/HEAD` is set to the same branch. e.g., if the remote `HEAD` is pointed at `next`, "`git remote set-head origin -a`" will set the symbolic-ref `refs/remotes/origin/HEAD` to `refs/remotes/origin/next`. This will @@ -130,17 +133,25 @@ branches, adds to that list. 'set-url':: -Changes URL remote points to. Sets first URL remote points to matching +Changes URLs for the remote. Sets first URL for remote <name> that matches regex <oldurl> (first URL if no <oldurl> is given) to <newurl>. If -<oldurl> doesn't match any URL, error occurs and nothing is changed. +<oldurl> doesn't match any URL, an error occurs and nothing is changed. + With '--push', push URLs are manipulated instead of fetch URLs. + -With '--add', instead of changing some URL, new URL is added. +With '--add', instead of changing existing URLs, new URL is added. ++ +With '--delete', instead of changing existing URLs, all URLs matching +regex <url> are deleted for remote <name>. Trying to delete all +non-push URLs is an error. + -With '--delete', instead of changing some URL, all URLs matching -regex <url> are deleted. Trying to delete all non-push URLs is an -error. +Note that the push URL and the fetch URL, even though they can +be set differently, must still refer to the same place. What you +pushed to the push URL should be what you would see if you +immediately fetched from the fetch URL. If you are trying to +fetch from one place (e.g. your upstream) and push to another (e.g. +your publishing repository), use two separate remotes. + 'show':: diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt index 4c1aff65e6..0e0bd363d6 100644 --- a/Documentation/git-repack.txt +++ b/Documentation/git-repack.txt @@ -9,12 +9,12 @@ git-repack - Pack unpacked objects in a repository SYNOPSIS -------- [verse] -'git repack' [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [--window=<n>] [--depth=<n>] +'git repack' [-a] [-A] [-d] [-f] [-F] [-l] [-n] [-q] [-b] [--window=<n>] [--depth=<n>] DESCRIPTION ----------- -This script is used to combine all objects that do not currently +This command is used to combine all objects that do not currently reside in a "pack", into a pack. It can also be used to re-organize existing packs into a single, more efficient pack. @@ -110,6 +110,21 @@ other objects in that pack they already have locally. The default is unlimited, unless the config variable `pack.packSizeLimit` is set. +-b:: +--write-bitmap-index:: + Write a reachability bitmap index as part of the repack. This + only makes sense when used with `-a` or `-A`, as the bitmaps + must be able to refer to all reachable objects. This option + overrides the setting of `pack.writeBitmaps`. + +--pack-kept-objects:: + Include objects in `.keep` files when repacking. Note that we + still do not delete `.keep` packs after `pack-objects` finishes. + This means that we may duplicate objects, but this makes the + option safe to use when there are concurrent pushes or fetches. + This option is generally only useful if you are writing bitmaps + with `-b` or `pack.writeBitmaps`, as it ensures that the + bitmapped packfile has the necessary objects. Configuration ------------- diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt index e0b4057976..8fff598fd6 100644 --- a/Documentation/git-replace.txt +++ b/Documentation/git-replace.txt @@ -9,8 +9,10 @@ SYNOPSIS -------- [verse] 'git replace' [-f] <object> <replacement> +'git replace' [-f] --edit <object> +'git replace' [-f] --graft <commit> [<parent>...] 'git replace' -d <object>... -'git replace' -l [<pattern>] +'git replace' [--format=<format>] [-l [<pattern>]] DESCRIPTION ----------- @@ -20,8 +22,14 @@ The name of the 'replace' reference is the SHA-1 of the object that is replaced. The content of the 'replace' reference is the SHA-1 of the replacement object. +The replaced object and the replacement object must be of the same type. +This restriction can be bypassed using `-f`. + Unless `-f` is given, the 'replace' reference must not yet exist. +There is no other restriction on the replaced and replacement objects. +Merge commits can be replaced by non-merge commits and vice versa. + Replacement references will be used by default by all Git commands except those doing reachability traversal (prune, pack transfer and fsck). @@ -49,18 +57,79 @@ achieve the same effect as the `--no-replace-objects` option. OPTIONS ------- -f:: +--force:: If an existing replace ref for the same object exists, it will be overwritten (instead of failing). -d:: +--delete:: Delete existing replace refs for the given objects. +--edit <object>:: + Edit an object's content interactively. The existing content + for <object> is pretty-printed into a temporary file, an + editor is launched on the file, and the result is parsed to + create a new object of the same type as <object>. A + replacement ref is then created to replace <object> with the + newly created object. See linkgit:git-var[1] for details about + how the editor will be chosen. + +--raw:: + When editing, provide the raw object contents rather than + pretty-printed ones. Currently this only affects trees, which + will be shown in their binary form. This is harder to work with, + but can help when repairing a tree that is so corrupted it + cannot be pretty-printed. Note that you may need to configure + your editor to cleanly read and write binary data. + +--graft <commit> [<parent>...]:: + Create a graft commit. A new commit is created with the same + content as <commit> except that its parents will be + [<parent>...] instead of <commit>'s parents. A replacement ref + is then created to replace <commit> with the newly created + commit. See contrib/convert-grafts-to-replace-refs.sh for an + example script based on this option that can convert grafts to + replace refs. + -l <pattern>:: +--list <pattern>:: List replace refs for objects that match the given pattern (or all if no pattern is given). Typing "git replace" without arguments, also lists all replace refs. +--format=<format>:: + When listing, use the specified <format>, which can be one of + 'short', 'medium' and 'long'. When omitted, the format + defaults to 'short'. + +FORMATS +------- + +The following format are available: + +* 'short': + <replaced sha1> +* 'medium': + <replaced sha1> -> <replacement sha1> +* 'long': + <replaced sha1> (<replaced type>) -> <replacement sha1> (<replacement type>) + +CREATING REPLACEMENT OBJECTS +---------------------------- + +linkgit:git-filter-branch[1], linkgit:git-hash-object[1] and +linkgit:git-rebase[1], among other git commands, can be used to create +replacement objects from existing objects. The `--edit` option can +also be used with 'git replace' to create a replacement object by +editing an existing object. + +If you want to replace many blobs, trees or commits that are part of a +string of commits, you may just want to create a replacement string of +commits and then only replace the commit at the tip of the target +string of commits with the commit at the tip of the replacement string +of commits. + BUGS ---- Comparing blobs or trees that have been replaced with those that @@ -69,14 +138,17 @@ go back to a replaced commit will move the branch to the replacement commit instead of the replaced commit. There may be other problems when using 'git rev-list' related to -pending objects. And of course things may break if an object of one -type is replaced by an object of another type (for example a blob -replaced by a commit). +pending objects. SEE ALSO -------- +linkgit:git-hash-object[1] +linkgit:git-filter-branch[1] +linkgit:git-rebase[1] linkgit:git-tag[1] linkgit:git-branch[1] +linkgit:git-commit[1] +linkgit:git-var[1] linkgit:git[1] GIT diff --git a/Documentation/git-repo-config.txt b/Documentation/git-repo-config.txt deleted file mode 100644 index 9ec115b9e0..0000000000 --- a/Documentation/git-repo-config.txt +++ /dev/null @@ -1,23 +0,0 @@ -git-repo-config(1) -================== - -NAME ----- -git-repo-config - Get and set repository or global options - - -SYNOPSIS --------- -[verse] -'git repo-config' ... - - -DESCRIPTION ------------ - -This is a synonym for linkgit:git-config[1]. Please refer to the -documentation of that command. - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-request-pull.txt b/Documentation/git-request-pull.txt index b99681ce85..283577b0b6 100644 --- a/Documentation/git-request-pull.txt +++ b/Documentation/git-request-pull.txt @@ -13,22 +13,65 @@ SYNOPSIS DESCRIPTION ----------- -Summarizes the changes between two commits to the standard output, and includes -the given URL in the generated summary. +Generate a request asking your upstream project to pull changes into +their tree. The request, printed to the standard output, summarizes +the changes and indicates from where they can be pulled. + +The upstream project is expected to have the commit named by +`<start>` and the output asks it to integrate the changes you made +since that commit, up to the commit named by `<end>`, by visiting +the repository named by `<url>`. + OPTIONS ------- -p:: - Show patch text + Include patch text in the output. <start>:: - Commit to start at. + Commit to start at. This names a commit that is already in + the upstream history. <url>:: - URL to include in the summary. + The repository URL to be pulled from. <end>:: - Commit to end at; defaults to HEAD. + Commit to end at (defaults to HEAD). This names the commit + at the tip of the history you are asking to be pulled. ++ +When the repository named by `<url>` has the commit at a tip of a +ref that is different from the ref you have locally, you can use the +`<local>:<remote>` syntax, to have its local name, a colon `:`, and +its remote name. + + +EXAMPLE +------- + +Imagine that you built your work on your `master` branch on top of +the `v1.0` release, and want it to be integrated to the project. +First you push that change to your public repository for others to +see: + + git push https://git.ko.xz/project master + +Then, you run this command: + + git request-pull v1.0 https://git.ko.xz/project master + +which will produce a request to the upstream, summarizing the +changes between the `v1.0` release and your `master`, to pull it +from your public repository. + +If you pushed your change to a branch whose name is different from +the one you have locally, e.g. + + git push https://git.ko.xz/project master:for-linus + +then you can ask that to be pulled with + + git request-pull v1.0 https://git.ko.xz/project master:for-linus + GIT --- diff --git a/Documentation/git-rerere.txt b/Documentation/git-rerere.txt index a62227f84e..9ee083c415 100644 --- a/Documentation/git-rerere.txt +++ b/Documentation/git-rerere.txt @@ -69,7 +69,7 @@ Prune records of conflicted merges that occurred a long time ago. By default, unresolved conflicts older than 15 days and resolved conflicts older than 60 days are pruned. These defaults are controlled via the -`gc.rerereunresolved` and `gc.rerereresolved` configuration +`gc.rerereUnresolved` and `gc.rerereResolved` configuration variables respectively. diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt index f445cb38fa..25432d9257 100644 --- a/Documentation/git-reset.txt +++ b/Documentation/git-reset.txt @@ -10,7 +10,7 @@ SYNOPSIS [verse] 'git reset' [-q] [<tree-ish>] [--] <paths>... 'git reset' (--patch | -p) [<tree-ish>] [--] [<paths>...] -'git reset' [--soft | --mixed | --hard | --merge | --keep] [-q] [<commit>] +'git reset' [--soft | --mixed [-N] | --hard | --merge | --keep] [-q] [<commit>] DESCRIPTION ----------- @@ -21,7 +21,7 @@ to HEAD in all forms. 'git reset' [-q] [<tree-ish>] [--] <paths>...:: This form resets the index entries for all <paths> to their - state at <tree-ish>. (It does not affect the working tree, nor + state at <tree-ish>. (It does not affect the working tree or the current branch.) + This means that `git reset <paths>` is the opposite of `git add @@ -51,7 +51,7 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. + -- --soft:: - Does not touch the index file nor the working tree at all (but + Does not touch the index file or the working tree at all (but resets the head to <commit>, just like all modes do). This leaves all your changed files "Changes to be committed", as 'git status' would put it. @@ -60,6 +60,9 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. Resets the index but not the working tree (i.e., the changed files are preserved but not marked for commit) and reports what has not been updated. This is the default action. ++ +If `-N` is specified, removed paths are marked as intent-to-add (see +linkgit:git-add[1]). --hard:: Resets the index and working tree. Any changes to tracked files in the @@ -115,7 +118,7 @@ and changes with these files are distracting. <2> Somebody asks you to pull, and the changes sounds worthy of merging. <3> However, you already dirtied the index (i.e. your index does not match the HEAD commit). But you know the pull you are going -to make does not affect frotz.c nor filfre.c, so you revert the +to make does not affect frotz.c or filfre.c, so you revert the index changes for these two files. Your changes in working tree remain there. <4> Then you can pull and merge, leaving frotz.c and filfre.c diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt index 045b37b82e..7b49c85347 100644 --- a/Documentation/git-rev-list.txt +++ b/Documentation/git-rev-list.txt @@ -9,52 +9,55 @@ git-rev-list - Lists commit objects in reverse chronological order SYNOPSIS -------- [verse] -'git rev-list' [ \--max-count=<number> ] - [ \--skip=<number> ] - [ \--max-age=<timestamp> ] - [ \--min-age=<timestamp> ] - [ \--sparse ] - [ \--merges ] - [ \--no-merges ] - [ \--min-parents=<number> ] - [ \--no-min-parents ] - [ \--max-parents=<number> ] - [ \--no-max-parents ] - [ \--first-parent ] - [ \--remove-empty ] - [ \--full-history ] - [ \--not ] - [ \--all ] - [ \--branches[=<pattern>] ] - [ \--tags[=<pattern>] ] - [ \--remotes[=<pattern>] ] - [ \--glob=<glob-pattern> ] - [ \--ignore-missing ] - [ \--stdin ] - [ \--quiet ] - [ \--topo-order ] - [ \--parents ] - [ \--timestamp ] - [ \--left-right ] - [ \--left-only ] - [ \--right-only ] - [ \--cherry-mark ] - [ \--cherry-pick ] - [ \--encoding=<encoding> ] - [ \--(author|committer|grep)=<pattern> ] - [ \--regexp-ignore-case | -i ] - [ \--extended-regexp | -E ] - [ \--fixed-strings | -F ] - [ \--date=(local|relative|default|iso|rfc|short) ] - [ [\--objects | \--objects-edge] [ \--unpacked ] ] - [ \--pretty | \--header ] - [ \--bisect ] - [ \--bisect-vars ] - [ \--bisect-all ] - [ \--merge ] - [ \--reverse ] - [ \--walk-reflogs ] - [ \--no-walk ] [ \--do-walk ] +'git rev-list' [ --max-count=<number> ] + [ --skip=<number> ] + [ --max-age=<timestamp> ] + [ --min-age=<timestamp> ] + [ --sparse ] + [ --merges ] + [ --no-merges ] + [ --min-parents=<number> ] + [ --no-min-parents ] + [ --max-parents=<number> ] + [ --no-max-parents ] + [ --first-parent ] + [ --remove-empty ] + [ --full-history ] + [ --not ] + [ --all ] + [ --branches[=<pattern>] ] + [ --tags[=<pattern>] ] + [ --remotes[=<pattern>] ] + [ --glob=<glob-pattern> ] + [ --ignore-missing ] + [ --stdin ] + [ --quiet ] + [ --topo-order ] + [ --parents ] + [ --timestamp ] + [ --left-right ] + [ --left-only ] + [ --right-only ] + [ --cherry-mark ] + [ --cherry-pick ] + [ --encoding=<encoding> ] + [ --(author|committer|grep)=<pattern> ] + [ --regexp-ignore-case | -i ] + [ --extended-regexp | -E ] + [ --fixed-strings | -F ] + [ --date=(local|relative|default|iso|iso-strict|rfc|short) ] + [ [ --objects | --objects-edge | --objects-edge-aggressive ] + [ --unpacked ] ] + [ --pretty | --header ] + [ --bisect ] + [ --bisect-vars ] + [ --bisect-all ] + [ --merge ] + [ --reverse ] + [ --walk-reflogs ] + [ --no-walk ] [ --do-walk ] + [ --count ] + [ --use-bitmap-index ] <commit>... [ \-- <paths>... ] DESCRIPTION diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt index 2b126c0a77..b6c6326cdc 100644 --- a/Documentation/git-rev-parse.txt +++ b/Documentation/git-rev-parse.txt @@ -24,9 +24,23 @@ distinguish between them. OPTIONS ------- + +Operation Modes +~~~~~~~~~~~~~~~ + +Each of these options must appear first on the command line. + --parseopt:: Use 'git rev-parse' in option parsing mode (see PARSEOPT section below). +--sq-quote:: + Use 'git rev-parse' in shell quoting mode (see SQ-QUOTE + section below). In contrast to the `--sq` option below, this + mode does only quoting. Nothing else is done to command input. + +Options for --parseopt +~~~~~~~~~~~~~~~~~~~~~~ + --keep-dashdash:: Only meaningful in `--parseopt` mode. Tells the option parser to echo out the first `--` met instead of skipping it. @@ -36,10 +50,12 @@ OPTIONS the first non-option argument. This can be used to parse sub-commands that take options themselves. ---sq-quote:: - Use 'git rev-parse' in shell quoting mode (see SQ-QUOTE - section below). In contrast to the `--sq` option below, this - mode does only quoting. Nothing else is done to command input. +--stuck-long:: + Only meaningful in `--parseopt` mode. Output the options in their + long form if available, and with their arguments stuck. + +Options for Filtering +~~~~~~~~~~~~~~~~~~~~~ --revs-only:: Do not output flags and parameters not meant for @@ -55,6 +71,9 @@ OPTIONS --no-flags:: Do not output flag parameters. +Options for Output +~~~~~~~~~~~~~~~~~~ + --default <arg>:: If there is no parameter given by the user, use `<arg>` instead. @@ -83,7 +102,7 @@ eval "set -- $(git rev-parse --sq --prefix "$prefix" "$@")" + If you want to make sure that the output actually names an object in your object database and/or can be used as a specific type of object -you require, you can add "^{type}" peeling operator to the parameter. +you require, you can add the `^{type}` peeling operator to the parameter. For example, `git rev-parse "$VAR^{commit}"` will make sure `$VAR` names an existing object that is a commit-ish (i.e. a commit, or an annotated tag that points at a commit). To make sure that `$VAR` @@ -95,6 +114,7 @@ can be used. Only meaningful in `--verify` mode. Do not output an error message if the first argument is not a valid object name; instead exit with non-zero status silently. + SHA-1s for valid object names are printed to stdout on success. --sq:: Usually the output is made one line per flag and @@ -110,29 +130,32 @@ can be used. strip '{caret}' prefix from the object names that already have one. +--abbrev-ref[=(strict|loose)]:: + A non-ambiguous short name of the objects name. + The option core.warnAmbiguousRefs is used to select the strict + abbreviation mode. + +--short:: +--short=number:: + Instead of outputting the full SHA-1 values of object names try to + abbreviate them to a shorter unique name. When no length is specified + 7 is used. The minimum length is 4. + --symbolic:: Usually the object names are output in SHA-1 form (with possible '{caret}' prefix); this option makes them output in a form as close to the original input as possible. --symbolic-full-name:: - This is similar to \--symbolic, but it omits input that + This is similar to --symbolic, but it omits input that are not refs (i.e. branch or tag names; or more explicitly disambiguating "heads/master" form, when you want to name the "master" branch when there is an unfortunately named tag "master"), and show them as full refnames (e.g. "refs/heads/master"). ---abbrev-ref[=(strict|loose)]:: - A non-ambiguous short name of the objects name. - The option core.warnAmbiguousRefs is used to select the strict - abbreviation mode. - ---disambiguate=<prefix>:: - Show every object whose name begins with the given prefix. - The <prefix> must be at least 4 hexadecimal digits long to - avoid listing each and every object in the repository by - mistake. +Options for Objects +~~~~~~~~~~~~~~~~~~~ --all:: Show all refs found in `refs/`. @@ -155,18 +178,34 @@ shown. If the pattern does not contain a globbing character (`?`, character (`?`, `*`, or `[`), it is turned into a prefix match by appending `/*`. ---show-toplevel:: - Show the absolute path of the top-level directory. +--exclude=<glob-pattern>:: + Do not include refs matching '<glob-pattern>' that the next `--all`, + `--branches`, `--tags`, `--remotes`, or `--glob` would otherwise + consider. Repetitions of this option accumulate exclusion patterns + up to the next `--all`, `--branches`, `--tags`, `--remotes`, or + `--glob` option (other options or arguments do not clear + accumulated patterns). ++ +The patterns given should not begin with `refs/heads`, `refs/tags`, or +`refs/remotes` when applied to `--branches`, `--tags`, or `--remotes`, +respectively, and they must begin with `refs/` when applied to `--glob` +or `--all`. If a trailing '/{asterisk}' is intended, it must be given +explicitly. ---show-prefix:: - When the command is invoked from a subdirectory, show the - path of the current directory relative to the top-level - directory. +--disambiguate=<prefix>:: + Show every object whose name begins with the given prefix. + The <prefix> must be at least 4 hexadecimal digits long to + avoid listing each and every object in the repository by + mistake. ---show-cdup:: - When the command is invoked from a subdirectory, show the - path of the top-level directory relative to the current - directory (typically a sequence of "../", or an empty string). +Options for Files +~~~~~~~~~~~~~~~~~ + +--local-env-vars:: + List the GIT_* environment variables that are local to the + repository (e.g. GIT_DIR or GIT_WORK_TREE, but not GIT_EDITOR). + Only the names of the variables are listed, not their value, + even if they are set. --git-dir:: Show `$GIT_DIR` if defined. Otherwise show the path to @@ -177,6 +216,9 @@ If `$GIT_DIR` is not defined and the current directory is not detected to lie in a Git repository or work tree print a message to stderr and exit with nonzero status. +--git-common-dir:: + Show `$GIT_COMMON_DIR` if defined, else `$GIT_DIR`. + --is-inside-git-dir:: When the current working directory is below the repository directory print "true", otherwise "false". @@ -188,17 +230,38 @@ print a message to stderr and exit with nonzero status. --is-bare-repository:: When the repository is bare print "true", otherwise "false". ---local-env-vars:: - List the GIT_* environment variables that are local to the - repository (e.g. GIT_DIR or GIT_WORK_TREE, but not GIT_EDITOR). - Only the names of the variables are listed, not their value, - even if they are set. +--resolve-git-dir <path>:: + Check if <path> is a valid repository or a gitfile that + points at a valid repository, and print the location of the + repository. If <path> is a gitfile then the resolved path + to the real repository is printed. ---short:: ---short=number:: - Instead of outputting the full SHA-1 values of object names try to - abbreviate them to a shorter unique name. When no length is specified - 7 is used. The minimum length is 4. +--git-path <path>:: + Resolve "$GIT_DIR/<path>" and takes other path relocation + variables such as $GIT_OBJECT_DIRECTORY, + $GIT_INDEX_FILE... into account. For example, if + $GIT_OBJECT_DIRECTORY is set to /foo/bar then "git rev-parse + --git-path objects/abc" returns /foo/bar/abc. + +--show-cdup:: + When the command is invoked from a subdirectory, show the + path of the top-level directory relative to the current + directory (typically a sequence of "../", or an empty string). + +--show-prefix:: + When the command is invoked from a subdirectory, show the + path of the current directory relative to the top-level + directory. + +--show-toplevel:: + Show the absolute path of the top-level directory. + +--shared-index-path:: + Show the path to the shared index file in split index mode, or + empty if not in split-index mode. + +Other Options +~~~~~~~~~~~~~ --since=datestring:: --after=datestring:: @@ -213,12 +276,6 @@ print a message to stderr and exit with nonzero status. <args>...:: Flags and parameters to be parsed. ---resolve-git-dir <path>:: - Check if <path> is a valid repository or a gitfile that - points at a valid repository, and print the location of the - repository. If <path> is a gitfile then the resolved path - to the real repository is printed. - include::revisions.txt[] @@ -242,26 +299,28 @@ Input Format 'git rev-parse --parseopt' input format is fully text based. It has two parts, separated by a line that contains only `--`. The lines before the separator -(should be more than one) are used for the usage. +(should be one or more) are used for the usage. The lines after the separator describe the options. Each line of options has this format: ------------ -<opt_spec><flags>* SP+ help LF +<opt-spec><flags>*<arg-hint>? SP+ help LF ------------ -`<opt_spec>`:: +`<opt-spec>`:: its format is the short option character, then the long option name separated by a comma. Both parts are not required, though at least one - is necessary. `h,help`, `dry-run` and `f` are all three correct - `<opt_spec>`. + is necessary. May not contain any of the `<flags>` characters. + `h,help`, `dry-run` and `f` are examples of correct `<opt-spec>`. `<flags>`:: `<flags>` are of `*`, `=`, `?` or `!`. * Use `=` if the option takes an argument. - * Use `?` to mean that the option is optional (though its use is discouraged). + * Use `?` to mean that the option takes an optional argument. You + probably want to use the `--stuck-long` mode to be able to + unambiguously parse the optional argument. * Use `*` to mean that this option should not be listed in the usage generated for the `-h` argument. It's shown for `--help-all` as @@ -269,6 +328,12 @@ Each line of options has this format: * Use `!` to not make the corresponding negated long option available. +`<arg-hint>`:: + `<arg-hint>`, if specified, is used as a name of the argument in the + help output, for options that take arguments. `<arg-hint>` is + terminated by the first whitespace. It is customary to use a + dash to separate words in a multi-word argument hint. + The remainder of the line, after stripping the spaces, is used as the help associated to the option. @@ -289,6 +354,8 @@ h,help show the help foo some nifty option --foo bar= some cool option --bar with an argument +baz=arg another cool option --baz with a named argument +qux?path qux may take a path argument but has meaning by itself An option group Header C? option C with an optional argument" @@ -296,6 +363,28 @@ C? option C with an optional argument" eval "$(echo "$OPTS_SPEC" | git rev-parse --parseopt -- "$@" || echo exit $?)" ------------ + +Usage text +~~~~~~~~~~ + +When `"$@"` is `-h` or `--help` in the above example, the following +usage text would be shown: + +------------ +usage: some-command [options] <args>... + + some-command does foo and bar! + + -h, --help show the help + --foo some nifty option --foo + --bar ... some cool option --bar with an argument + --baz <arg> another cool option --baz with a named argument + --qux[=<path>] qux may take a path argument but has meaning by itself + +An option group Header + -C[...] option C with an optional argument +------------ + SQ-QUOTE -------- diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt index f79c9d8583..cceb5f2f7f 100644 --- a/Documentation/git-revert.txt +++ b/Documentation/git-revert.txt @@ -8,7 +8,7 @@ git-revert - Revert some existing commits SYNOPSIS -------- [verse] -'git revert' [--[no-]edit] [-n] [-m parent-number] [-s] <commit>... +'git revert' [--[no-]edit] [-n] [-m parent-number] [-s] [-S[<key-id>]] <commit>... 'git revert' --continue 'git revert' --quit 'git revert' --abort @@ -59,7 +59,7 @@ brought in by the merge. As a result, later merges will only bring in tree changes introduced by commits that are not ancestors of the previously reverted merge. This may or may not be what you want. + -See the link:howto/revert-a-faulty-merge.txt[revert-a-faulty-merge How-To] for +See the link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for more details. --no-edit:: @@ -80,6 +80,10 @@ more details. This is useful when reverting more than one commits' effect to your index in a row. +-S[<key-id>]:: +--gpg-sign[=<key-id>]:: + GPG-sign commits. + -s:: --signoff:: Add Signed-off-by line at the end of the commit message. diff --git a/Documentation/git-rm.txt b/Documentation/git-rm.txt index 1d876c2619..f1efc116eb 100644 --- a/Documentation/git-rm.txt +++ b/Documentation/git-rm.txt @@ -134,14 +134,16 @@ use the following command: git diff --name-only --diff-filter=D -z | xargs -0 git rm --cached ---------------- -Submodules -~~~~~~~~~~ +SUBMODULES +---------- Only submodules using a gitfile (which means they were cloned with a Git version 1.7.8 or newer) will be removed from the work tree, as their repository lives inside the .git directory of the superproject. If a submodule (or one of those nested inside it) still uses a .git directory, `git rm` will fail - no matter if forced -or not - to protect the submodule's history. +or not - to protect the submodule's history. If it exists the +submodule.<name> section in the linkgit:gitmodules[5] file will also +be removed and that file will be staged (unless --cached or -n are used). A submodule is considered up-to-date when the HEAD is the same as recorded in the index, no tracked files are modified and no untracked @@ -168,6 +170,15 @@ of files and subdirectories under the `Documentation/` directory. (i.e. you are listing the files explicitly), it does not remove `subdir/git-foo.sh`. +BUGS +---- +Each time a superproject update removes a populated submodule +(e.g. when switching between commits before and after the removal) a +stale submodule checkout will remain in the old location. Removing the +old directory is only safe when it uses a gitfile, as otherwise the +history of the submodule will be deleted too. This step will be +obsolete when recursive submodule update has been implemented. + SEE ALSO -------- linkgit:git-add[1] diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt index f0e57a597b..b9134d234f 100644 --- a/Documentation/git-send-email.txt +++ b/Documentation/git-send-email.txt @@ -20,7 +20,7 @@ files in the directory), or directly as a revision list. In the last case, any format accepted by linkgit:git-format-patch[1] can be passed to git send-email. -The header of the email is configurable by command line options. If not +The header of the email is configurable via command-line options. If not specified on the command line, the user will be prompted with a ReadLine enabled interface to provide the necessary information. @@ -47,19 +47,19 @@ Composing --annotate:: Review and edit each patch you're about to send. Default is the value of 'sendemail.annotate'. See the CONFIGURATION section for - 'sendemail.multiedit'. + 'sendemail.multiEdit'. ---bcc=<address>:: +--bcc=<address>,...:: Specify a "Bcc:" value for each email. Default is the value of 'sendemail.bcc'. + -The --bcc option must be repeated for each user you want on the bcc list. +This option may be specified multiple times. ---cc=<address>:: +--cc=<address>,...:: Specify a starting "Cc:" value for each email. Default is the value of 'sendemail.cc'. + -The --cc option must be repeated for each user you want on the cc list. +This option may be specified multiple times. --compose:: Invoke a text editor (see GIT_EDITOR in linkgit:git-var[1]) @@ -68,17 +68,17 @@ The --cc option must be repeated for each user you want on the cc list. When '--compose' is used, git send-email will use the From, Subject, and In-Reply-To headers specified in the message. If the body of the message (what you type after the headers and a blank line) only contains blank -(or Git: prefixed) lines the summary won't be sent, but From, Subject, +(or Git: prefixed) lines, the summary won't be sent, but From, Subject, and In-Reply-To headers will be used unless they are removed. + Missing From or In-Reply-To headers will be prompted for. + -See the CONFIGURATION section for 'sendemail.multiedit'. +See the CONFIGURATION section for 'sendemail.multiEdit'. --from=<address>:: Specify the sender of the emails. If not specified on the command line, the value of the 'sendemail.from' configuration option is used. If - neither the command line option nor 'sendemail.from' are set, then the + neither the command-line option nor 'sendemail.from' are set, then the user will be prompted for the value. The default for the prompt will be the value of GIT_AUTHOR_IDENT, or GIT_COMMITTER_IDENT if that is not set, as returned by "git var -l". @@ -110,13 +110,13 @@ is not set, this will be prompted for. Only necessary if --compose is also set. If --compose is not set, this will be prompted for. ---to=<address>:: +--to=<address>,...:: Specify the primary recipient of the emails generated. Generally, this will be the upstream maintainer of the project involved. Default is the value of the 'sendemail.to' configuration value; if that is unspecified, and --to-cmd is not specified, this will be prompted for. + -The --to option must be repeated for each user you want on the to list. +This option may be specified multiple times. --8bit-encoding=<encoding>:: When encountering a non-ASCII message or subject that does not @@ -131,6 +131,21 @@ Note that no attempts whatsoever are made to validate the encoding. Specify encoding of compose message. Default is the value of the 'sendemail.composeencoding'; if that is unspecified, UTF-8 is assumed. +--transfer-encoding=(7bit|8bit|quoted-printable|base64):: + Specify the transfer encoding to be used to send the message over SMTP. + 7bit will fail upon encountering a non-ASCII message. quoted-printable + can be useful when the repository contains files that contain carriage + returns, but makes the raw patch email file (as saved from a MUA) much + harder to inspect manually. base64 is even more fool proof, but also + even more opaque. Default is the value of the 'sendemail.transferEncoding' + configuration value; if that is unspecified, git will use 8bit and not + add a Content-Transfer-Encoding header. + +--xmailer:: +--no-xmailer:: + Add (or prevent adding) the "X-Mailer:" header. By default, + the header is added, but it can be turned off by setting the + `sendemail.xmailer` configuration variable to `false`. Sending ~~~~~~~ @@ -141,31 +156,44 @@ Sending subscribed to a list. In order to use the 'From' address, set the value to "auto". If you use the sendmail binary, you must have suitable privileges for the -f parameter. Default is the value of the - 'sendemail.envelopesender' configuration variable; if that is + 'sendemail.envelopeSender' configuration variable; if that is unspecified, choosing the envelope sender is left to your MTA. --smtp-encryption=<encryption>:: Specify the encryption to use, either 'ssl' or 'tls'. Any other value reverts to plain SMTP. Default is the value of - 'sendemail.smtpencryption'. + 'sendemail.smtpEncryption'. --smtp-domain=<FQDN>:: Specifies the Fully Qualified Domain Name (FQDN) used in the HELO/EHLO command to the SMTP server. Some servers require the FQDN to match your IP address. If not set, git send-email attempts to determine your FQDN automatically. Default is the value of - 'sendemail.smtpdomain'. + 'sendemail.smtpDomain'. + +--smtp-auth=<mechanisms>:: + Whitespace-separated list of allowed SMTP-AUTH mechanisms. This setting + forces using only the listed mechanisms. Example: ++ +------ +$ git send-email --smtp-auth="PLAIN LOGIN GSSAPI" ... +------ ++ +If at least one of the specified mechanisms matches the ones advertised by the +SMTP server and if it is supported by the utilized SASL library, the mechanism +is used for authentication. If neither 'sendemail.smtpAuth' nor '--smtp-auth' +is specified, all mechanisms supported by the SASL library can be used. --smtp-pass[=<password>]:: Password for SMTP-AUTH. The argument is optional: If no argument is specified, then the empty string is used as - the password. Default is the value of 'sendemail.smtppass', + the password. Default is the value of 'sendemail.smtpPass', however '--smtp-pass' always overrides this value. + Furthermore, passwords need not be specified in configuration files or on the command line. If a username has been specified (with -'--smtp-user' or a 'sendemail.smtpuser'), but no password has been -specified (with '--smtp-pass' or 'sendemail.smtppass'), then +'--smtp-user' or a 'sendemail.smtpUser'), but no password has been +specified (with '--smtp-pass' or 'sendemail.smtpPass'), then a password is obtained using 'git-credential'. --smtp-server=<host>:: @@ -173,7 +201,7 @@ a password is obtained using 'git-credential'. `smtp.example.com` or a raw IP address). Alternatively it can specify a full pathname of a sendmail-like program instead; the program must support the `-i` option. Default value can - be specified by the 'sendemail.smtpserver' configuration + be specified by the 'sendemail.smtpServer' configuration option; the built-in default is `/usr/sbin/sendmail` or `/usr/lib/sendmail` if such program is available, or `localhost` otherwise. @@ -184,11 +212,11 @@ a password is obtained using 'git-credential'. submission port 587, or the common SSL smtp port 465); symbolic port names (e.g. "submission" instead of 587) are also accepted. The port can also be set with the - 'sendemail.smtpserverport' configuration variable. + 'sendemail.smtpServerPort' configuration variable. --smtp-server-option=<option>:: If set, specifies the outgoing SMTP server option to use. - Default value can be specified by the 'sendemail.smtpserveroption' + Default value can be specified by the 'sendemail.smtpServerOption' configuration option. + The --smtp-server-option option must be repeated for each option you want @@ -199,14 +227,19 @@ must be used for each option. Legacy alias for '--smtp-encryption ssl'. --smtp-ssl-cert-path:: - Path to ca-certificates (either a directory or a single file). - Set it to an empty string to disable certificate verification. - Defaults to the value set to the 'sendemail.smtpsslcertpath' - configuration variable, if set, or `/etc/ssl/certs` otherwise. + Path to a store of trusted CA certificates for SMTP SSL/TLS + certificate validation (either a directory that has been processed + by 'c_rehash', or a single file containing one or more PEM format + certificates concatenated together: see verify(1) -CAfile and + -CApath for more information on these). Set it to an empty string + to disable certificate verification. Defaults to the value of the + 'sendemail.smtpsslcertpath' configuration variable, if set, or the + backing SSL library's compiled-in default otherwise (which should + be the best choice on most platforms). --smtp-user=<user>:: - Username for SMTP-AUTH. Default is the value of 'sendemail.smtpuser'; - if a username is not specified (with '--smtp-user' or 'sendemail.smtpuser'), + Username for SMTP-AUTH. Default is the value of 'sendemail.smtpUser'; + if a username is not specified (with '--smtp-user' or 'sendemail.smtpUser'), then authentication is not attempted. --smtp-debug=0|1:: @@ -227,14 +260,14 @@ Automating Specify a command to execute once per patch file which should generate patch file specific "Cc:" entries. Output of this command must be single email address per line. - Default is the value of 'sendemail.cccmd' configuration value. + Default is the value of 'sendemail.ccCmd' configuration value. --[no-]chain-reply-to:: If this is set, each email will be sent as a reply to the previous email sent. If disabled with "--no-chain-reply-to", all emails after the first will be sent as replies to the first email sent. When using this, it is recommended that the first file given be an overview of the - entire patch series. Disabled by default, but the 'sendemail.chainreplyto' + entire patch series. Disabled by default, but the 'sendemail.chainReplyTo' configuration variable can be used to enable it. --identity=<identity>:: @@ -248,6 +281,18 @@ Automating cc list. Default is the value of 'sendemail.signedoffbycc' configuration value; if that is unspecified, default to --signed-off-by-cc. +--[no-]cc-cover:: + If this is set, emails found in Cc: headers in the first patch of + the series (typically the cover letter) are added to the cc list + for each email set. Default is the value of 'sendemail.cccover' + configuration value; if that is unspecified, default to --no-cc-cover. + +--[no-]to-cover:: + If this is set, emails found in To: headers in the first patch of + the series (typically the cover letter) are added to the to list + for each email set. Default is the value of 'sendemail.tocover' + configuration value; if that is unspecified, default to --no-to-cover. + --suppress-cc=<category>:: Specify an additional category of recipients to suppress the auto-cc of: @@ -272,7 +317,7 @@ specified, as well as 'body' if --no-signed-off-cc is specified. --[no-]suppress-from:: If this is set, do not add the From: address to the cc: list. - Default is the value of 'sendemail.suppressfrom' configuration + Default is the value of 'sendemail.suppressFrom' configuration value; if that is unspecified, default to --no-suppress-from. --[no-]thread:: @@ -345,15 +390,32 @@ default to '--validate'. CONFIGURATION ------------- -sendemail.aliasesfile:: +sendemail.aliasesFile:: To avoid typing long email addresses, point this to one or more - email aliases files. You must also supply 'sendemail.aliasfiletype'. + email aliases files. You must also supply 'sendemail.aliasFileType'. -sendemail.aliasfiletype:: - Format of the file(s) specified in sendemail.aliasesfile. Must be - one of 'mutt', 'mailrc', 'pine', 'elm', or 'gnus'. +sendemail.aliasFileType:: + Format of the file(s) specified in sendemail.aliasesFile. Must be + one of 'mutt', 'mailrc', 'pine', 'elm', or 'gnus', or 'sendmail'. ++ +What an alias file in each format looks like can be found in +the documentation of the email program of the same name. The +differences and limitations from the standard formats are +described below: ++ +-- +sendmail;; +* Quoted aliases and quoted addresses are not supported: lines that + contain a `"` symbol are ignored. +* Redirection to a file (`/path/name`) or pipe (`|command`) is not + supported. +* File inclusion (`:include: /path/name`) is not supported. +* Warnings are printed on the standard error output for any + explicitly unsupported constructs, and any other lines that are not + recognized by the parser. +-- -sendemail.multiedit:: +sendemail.multiEdit:: If true (default), a single editor instance will be spawned to edit files you have to edit (patches when '--annotate' is used, and the summary when '--compose' is used). If false, files will be edited one @@ -372,10 +434,10 @@ To use 'git send-email' to send your patches through the GMail SMTP server, edit ~/.gitconfig to specify your account settings: [sendemail] - smtpencryption = tls - smtpserver = smtp.gmail.com - smtpuser = yourname@gmail.com - smtpserverport = 587 + smtpEncryption = tls + smtpServer = smtp.gmail.com + smtpUser = yourname@gmail.com + smtpServerPort = 587 Once your commits are ready to be sent to the mailing list, run the following commands: diff --git a/Documentation/git-send-pack.txt b/Documentation/git-send-pack.txt index dc3a568baa..6aa91e830c 100644 --- a/Documentation/git-send-pack.txt +++ b/Documentation/git-send-pack.txt @@ -9,7 +9,10 @@ git-send-pack - Push objects over Git protocol to another repository SYNOPSIS -------- [verse] -'git send-pack' [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...] +'git send-pack' [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] + [--verbose] [--thin] [--atomic] + [--[no-]signed|--sign=(true|false|if-asked)] + [<host>:]<directory> [<ref>...] DESCRIPTION ----------- @@ -29,12 +32,22 @@ OPTIONS a directory on the default $PATH. --exec=<git-receive-pack>:: - Same as \--receive-pack=<git-receive-pack>. + Same as --receive-pack=<git-receive-pack>. --all:: Instead of explicitly specifying which refs to update, update all heads that locally exist. +--stdin:: + Take the list of refs from stdin, one per line. If there + are refs specified on the command line in addition to this + option, then the refs from stdin are processed after those + on the command line. ++ +If '--stateless-rpc' is specified together with this option then +the list of refs must be in packet format (pkt-line). Each ref must +be in a separate packet, and the list must end with a flush packet. + --dry-run:: Do everything except actually send the updates. @@ -52,6 +65,22 @@ OPTIONS Send a "thin" pack, which records objects in deltified form based on objects not included in the pack to reduce network traffic. +--atomic:: + Use an atomic transaction for updating the refs. If any of the refs + fails to update then the entire push will fail without changing any + refs. + +--[no-]signed:: +--sign=(true|false|if-asked):: + GPG-sign the push request to update refs on the receiving + side, to allow it to be checked by the hooks and/or be + logged. If `false` or `--no-signed`, no signing will be + attempted. If `true` or `--signed`, the push will fail if the + server does not support signed pushes. If set to `if-asked`, + sign if and only if the server supports signed pushes. The push + will also fail if the actual call to `gpg --sign` fails. See + linkgit:git-receive-pack[1] for the details on the receiving end. + <host>:: A remote host to house the repository. When this part is specified, 'git-receive-pack' is invoked via @@ -77,7 +106,8 @@ this flag. Without '--all' and without any '<ref>', the heads that exist both on the local side and on the remote side are updated. -When one or more '<ref>' are specified explicitly, it can be either a +When one or more '<ref>' are specified explicitly (whether on the +command line or via `--stdin`), it can be either a single pattern, or a pair of such pattern separated by a colon ":" (this means that a ref name cannot have a colon in it). A single pattern '<name>' is just a shorthand for '<name>:<name>'. diff --git a/Documentation/git-sh-setup.txt b/Documentation/git-sh-setup.txt index 5d709d02c3..4f67c4cde6 100644 --- a/Documentation/git-sh-setup.txt +++ b/Documentation/git-sh-setup.txt @@ -41,9 +41,11 @@ usage:: die with the usage message. set_reflog_action:: - set the message that will be recorded to describe the - end-user action in the reflog, when the script updates a - ref. + Set GIT_REFLOG_ACTION environment to a given string (typically + the name of the program) unless it is already set. Whenever + the script runs a `git` command that updates refs, a reflog + entry is created using the value of this string to leave the + record of what command updated the ref. git_editor:: runs an editor of user's choice (GIT_EDITOR, core.editor, VISUAL or diff --git a/Documentation/git-shell.txt b/Documentation/git-shell.txt index c35051ba58..e4bdd2235c 100644 --- a/Documentation/git-shell.txt +++ b/Documentation/git-shell.txt @@ -66,7 +66,7 @@ EXAMPLE ------- To disable interactive logins, displaying a greeting instead: -+ + ---------------- $ chsh -s /usr/bin/git-shell $ mkdir $HOME/git-shell-commands diff --git a/Documentation/git-show-branch.txt b/Documentation/git-show-branch.txt index a515648ab0..b91d4e545b 100644 --- a/Documentation/git-show-branch.txt +++ b/Documentation/git-show-branch.txt @@ -25,7 +25,7 @@ and/or refs/tags) semi-visually. It cannot show more than 29 branches and commits at a time. It uses `showbranch.default` multi-valued configuration items if -no <rev> nor <glob> is given on the command line. +no <rev> or <glob> is given on the command line. OPTIONS diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt index b0a309b117..2a6f89b235 100644 --- a/Documentation/git-show-ref.txt +++ b/Documentation/git-show-ref.txt @@ -89,7 +89,7 @@ OPTIONS Show references matching one or more patterns. Patterns are matched from the end of the full name, and only complete parts are matched, e.g. 'master' matches 'refs/heads/master', 'refs/remotes/origin/master', - 'refs/tags/jedi/master' but not 'refs/heads/mymaster' nor + 'refs/tags/jedi/master' but not 'refs/heads/mymaster' or 'refs/remotes/master/jedi'. OUTPUT @@ -175,6 +175,7 @@ FILES SEE ALSO -------- +linkgit:git-for-each-ref[1], linkgit:git-ls-remote[1], linkgit:git-update-ref[1], linkgit:gitrepository-layout[5] diff --git a/Documentation/git-show.txt b/Documentation/git-show.txt index 4e617e6979..82a4125a2d 100644 --- a/Documentation/git-show.txt +++ b/Documentation/git-show.txt @@ -22,7 +22,7 @@ presents the merge commit in a special format as produced by For tags, it shows the tag message and the referenced objects. For trees, it shows the names (equivalent to 'git ls-tree' -with \--name-only). +with --name-only). For plain blobs, it shows the plain contents. diff --git a/Documentation/git-stage.txt b/Documentation/git-stage.txt index ba3fe0d7f5..25bcda936d 100644 --- a/Documentation/git-stage.txt +++ b/Documentation/git-stage.txt @@ -1,5 +1,5 @@ git-stage(1) -============== +============ NAME ---- diff --git a/Documentation/git-stash.txt b/Documentation/git-stash.txt index db7e803038..375213fe46 100644 --- a/Documentation/git-stash.txt +++ b/Documentation/git-stash.txt @@ -44,7 +44,7 @@ is also possible). OPTIONS ------- -save [-p|--patch] [--[no-]keep-index] [-u|--include-untracked] [-a|--all] [-q|--quiet] [<message>]:: +save [-p|--patch] [-k|--[no-]keep-index] [-u|--include-untracked] [-a|--all] [-q|--quiet] [<message>]:: Save your local modifications to a new 'stash', and run `git reset --hard` to revert them. The <message> part is optional and gives diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt index 9046df98a0..335f312335 100644 --- a/Documentation/git-status.txt +++ b/Documentation/git-status.txt @@ -41,6 +41,14 @@ OPTIONS --long:: Give the output in the long-format. This is the default. +-v:: +--verbose:: + In addition to the names of files that have been changed, also + show the textual changes that are staged to be committed + (i.e., like the output of `git diff --cached`). If `-v` is specified + twice, then also show the changes in the working tree that + have not yet been staged (i.e., like the output of `git diff`). + -u[<mode>]:: --untracked-files[=<mode>]:: Show untracked files. @@ -58,7 +66,10 @@ When `-u` option is not used, untracked files and directories are shown (i.e. the same as specifying `normal`), to help you avoid forgetting to add newly created files. Because it takes extra work to find untracked files in the filesystem, this mode may take some -time in a large working tree. You can use `no` to have `git status` +time in a large working tree. +Consider enabling untracked cache and split index if supported (see +`git update-index --untracked-cache` and `git update-index +--split-index`), Otherwise you can use `no` to have `git status` return more quickly without showing untracked files. + The default can be changed using the status.showUntrackedFiles @@ -77,7 +88,7 @@ configuration variable documented in linkgit:git-config[1]. only changes to the commits stored in the superproject are shown (this was the behavior before 1.7.0). Using "all" hides all changes to submodules (and suppresses the output of submodule summaries when the config option - `status.submodulesummary` is set). + `status.submoduleSummary` is set). --ignored:: Show ignored files as well. @@ -97,7 +108,7 @@ configuration variable documented in linkgit:git-config[1]. OUTPUT ------ The output from this command is designed to be used as a commit -template comment, and all the output lines are prefixed with '#'. +template comment. The default, long format, is designed to be human readable, verbose and descriptive. Its contents and format are subject to change at any time. @@ -116,7 +127,7 @@ In the short-format, the status of each path is shown as where `PATH1` is the path in the `HEAD`, and the " `-> PATH2`" part is shown only when `PATH1` corresponds to a different path in the -index/worktree (i.e. the file is renamed). The 'XY' is a two-letter +index/worktree (i.e. the file is renamed). The `XY` is a two-letter status code. The fields (including the `->`) are separated from each other by a @@ -125,7 +136,7 @@ characters, that field will be quoted in the manner of a C string literal: surrounded by ASCII double quote (34) characters, and with interior special characters backslash-escaped. -For paths with merge conflicts, `X` and 'Y' show the modification +For paths with merge conflicts, `X` and `Y` show the modification states of each side of the merge. For paths that do not have merge conflicts, `X` shows the status of the index, and `Y` shows the status of the work tree. For untracked paths, `XY` are `??`. Other status @@ -207,10 +218,16 @@ If the config variable `status.relativePaths` is set to false, then all paths shown are relative to the repository root, not to the current directory. -If `status.submodulesummary` is set to a non zero number or true (identical +If `status.submoduleSummary` is set to a non zero number or true (identical to -1 or an unlimited number), the submodule summary will be enabled for the long format and a summary of commits for modified submodules will be -shown (see --summary-limit option of linkgit:git-submodule[1]). +shown (see --summary-limit option of linkgit:git-submodule[1]). Please note +that the summary output from the status command will be suppressed for all +submodules when `diff.ignoreSubmodules` is set to 'all' or only for those +submodules where `submodule.<name>.ignore=all`. To also view the summary for +ignored submodules you can either use the --ignore-submodules=dirty command +line option or the 'git submodule summary' command, which shows a similar +output but does not honor these settings. SEE ALSO -------- diff --git a/Documentation/git-stripspace.txt b/Documentation/git-stripspace.txt index c87bfcb674..60328d5d08 100644 --- a/Documentation/git-stripspace.txt +++ b/Documentation/git-stripspace.txt @@ -10,6 +10,7 @@ SYNOPSIS -------- [verse] 'git stripspace' [-s | --strip-comments] < input +'git stripspace' [-c | --comment-lines] < input DESCRIPTION ----------- @@ -48,7 +49,7 @@ EXAMPLES Given the following noisy input with '$' indicating the end of a line: --------- +--------- |A brief introduction $ | $ |$ @@ -64,7 +65,7 @@ Given the following noisy input with '$' indicating the end of a line: Use 'git stripspace' with no arguments to obtain: --------- +--------- |A brief introduction$ |$ |A new paragraph$ @@ -78,7 +79,7 @@ Use 'git stripspace' with no arguments to obtain: Use 'git stripspace --strip-comments' to obtain: --------- +--------- |A brief introduction$ |$ |A new paragraph$ diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index bfef8a0c62..f17687e09d 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -15,32 +15,27 @@ SYNOPSIS 'git submodule' [--quiet] init [--] [<path>...] 'git submodule' [--quiet] deinit [-f|--force] [--] <path>... 'git submodule' [--quiet] update [--init] [--remote] [-N|--no-fetch] - [-f|--force] [--rebase] [--reference <repository>] [--depth <depth>] - [--merge] [--recursive] [--] [<path>...] + [-f|--force] [--rebase|--merge] [--reference <repository>] + [--depth <depth>] [--recursive] [--] [<path>...] 'git submodule' [--quiet] summary [--cached|--files] [(-n|--summary-limit) <n>] [commit] [--] [<path>...] 'git submodule' [--quiet] foreach [--recursive] <command> -'git submodule' [--quiet] sync [--] [<path>...] +'git submodule' [--quiet] sync [--recursive] [--] [<path>...] DESCRIPTION ----------- -Submodules allow foreign repositories to be embedded within -a dedicated subdirectory of the source tree, always pointed -at a particular commit. +Inspects, updates and manages submodules. -They are not to be confused with remotes, which are meant mainly -for branches of the same project; submodules are meant for -different projects you would like to make part of your source tree, -while the history of the two projects still stays completely -independent and you cannot modify the contents of the submodule -from within the main project. -If you want to merge the project histories and want to treat the -aggregated whole as a single project from then on, you may want to -add a remote for the other project and use the 'subtree' merge strategy, -instead of treating the other project as a submodule. Directories -that come from both projects can be cloned and checked out as a whole -if you choose to go that route. +A submodule allows you to keep another Git repository in a subdirectory +of your repository. The other repository has its own history, which does not +interfere with the history of the current repository. This can be used to +have external dependencies such as third party libraries for example. + +When cloning or pulling a repository containing submodules however, +these will not be checked out by default; the 'init' and 'update' +subcommands will maintain submodules checked out and at +appropriate revision in your working tree. Submodules are composed from a so-called `gitlink` tree entry in the main repository that refers to a particular commit object @@ -51,19 +46,18 @@ describes the default URL the submodule shall be cloned from. The logical name can be used for overriding this URL within your local repository configuration (see 'submodule init'). -This command will manage the tree entries and contents of the -gitmodules file for you, as well as inspect the status of your -submodules and update them. -When adding a new submodule to the tree, the 'add' subcommand -is to be used. However, when pulling a tree containing submodules, -these will not be checked out by default; -the 'init' and 'update' subcommands will maintain submodules -checked out and at appropriate revision in your working tree. -You can briefly inspect the up-to-date status of your submodules -using the 'status' subcommand and get a detailed overview of the -difference between the index and checkouts using the 'summary' -subcommand. - +Submodules are not to be confused with remotes, which are other +repositories of the same project; submodules are meant for +different projects you would like to make part of your source tree, +while the history of the two projects still stays completely +independent and you cannot modify the contents of the submodule +from within the main project. +If you want to merge the project histories and want to treat the +aggregated whole as a single project from then on, you may want to +add a remote for the other project and use the 'subtree' merge strategy, +instead of treating the other project as a submodule. Directories +that come from both projects can be cloned and checked out as a whole +if you choose to go that route. COMMANDS -------- @@ -154,27 +148,51 @@ If `--force` is specified, the submodule's work tree will be removed even if it contains local modifications. update:: - Update the registered submodules, i.e. clone missing submodules and - checkout the commit specified in the index of the containing repository. - This will make the submodules HEAD be detached unless `--rebase` or - `--merge` is specified or the key `submodule.$name.update` is set to - `rebase`, `merge` or `none`. `none` can be overridden by specifying - `--checkout`. Setting the key `submodule.$name.update` to `!command` - will cause `command` to be run. `command` can be any arbitrary shell - command that takes a single argument, namely the sha1 to update to. + +-- +Update the registered submodules to match what the superproject +expects by cloning missing submodules and updating the working tree of +the submodules. The "updating" can be done in several ways depending +on command line options and the value of `submodule.<name>.update` +configuration variable. Supported update procedures are: + + checkout;; the commit recorded in the superproject will be + checked out in the submodule on a detached HEAD. This is + done when `--checkout` option is given, or no option is + given, and `submodule.<name>.update` is unset, or if it is + set to 'checkout'. ++ +If `--force` is specified, the submodule will be checked out (using +`git checkout --force` if appropriate), even if the commit specified +in the index of the containing repository already matches the commit +checked out in the submodule. + + rebase;; the current branch of the submodule will be rebased + onto the commit recorded in the superproject. This is done + when `--rebase` option is given, or no option is given, and + `submodule.<name>.update` is set to 'rebase'. + + merge;; the commit recorded in the superproject will be merged + into the current branch in the submodule. This is done + when `--merge` option is given, or no option is given, and + `submodule.<name>.update` is set to 'merge'. + + custom command;; arbitrary shell command that takes a single + argument (the sha1 of the commit recorded in the + superproject) is executed. This is done when no option is + given, and `submodule.<name>.update` has the form of + '!command'. + +When no option is given and `submodule.<name>.update` is set to 'none', +the submodule is not updated. + If the submodule is not yet initialized, and you just want to use the setting as stored in .gitmodules, you can automatically initialize the submodule with the `--init` option. -+ + If `--recursive` is specified, this command will recurse into the registered submodules, and update any nested submodules within. -+ -If `--force` is specified, the submodule will be checked out (using -`git checkout --force` if appropriate), even if the commit specified in the -index of the containing repository already matches the commit checked out in -the submodule. - +-- summary:: Show commit summary between the given commit (defaults to HEAD) and working tree/index. For a submodule in question, a series of commits @@ -229,7 +247,7 @@ OPTIONS -b:: --branch:: Branch of repository to add as submodule. - The name of the branch is recorded as `submodule.<path>.branch` in + The name of the branch is recorded as `submodule.<name>.branch` in `.gitmodules` for `update --remote`. -f:: @@ -238,10 +256,12 @@ OPTIONS When running add, allow adding an otherwise ignored submodule path. When running deinit the submodule work trees will be removed even if they contain local changes. - When running update, throw away local changes in submodules when - switching to a different commit; and always run a checkout operation - in the submodule, even if the commit listed in the index of the - containing repository matches the commit checked out in the submodule. + When running update (only effective with the checkout procedure), + throw away local changes in submodules when switching to a + different commit; and always run a checkout operation in the + submodule, even if the commit listed in the index of the + containing repository matches the commit checked out in the + submodule. --cached:: This option is only valid for status and summary commands. These @@ -281,12 +301,31 @@ In order to ensure a current tracking branch state, `update --remote` fetches the submodule's remote repository before calculating the SHA-1. If you don't want to fetch, you should use `submodule update --remote --no-fetch`. ++ +Use this option to integrate changes from the upstream subproject with +your submodule's current HEAD. Alternatively, you can run `git pull` +from the submodule, which is equivalent except for the remote branch +name: `update --remote` uses the default upstream repository and +`submodule.<name>.branch`, while `git pull` uses the submodule's +`branch.<name>.merge`. Prefer `submodule.<name>.branch` if you want +to distribute the default upstream branch with the superproject and +`branch.<name>.merge` if you want a more native feel while working in +the submodule itself. -N:: --no-fetch:: This option is only valid for the update command. Don't fetch new objects from the remote site. +--checkout:: + This option is only valid for the update command. + Checkout the commit recorded in the superproject on a detached HEAD + in the submodule. This is the default behavior, the main use of + this option is to override `submodule.$name.update` when set to + a value other than `checkout`. + If the key `submodule.$name.update` is either not explicitly set or + set to `checkout`, this option is implicit. + --merge:: This option is only valid for the update command. Merge the commit recorded in the superproject into the current branch diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt index 6845c493aa..0c0f60b20e 100644 --- a/Documentation/git-svn.txt +++ b/Documentation/git-svn.txt @@ -70,8 +70,8 @@ COMMANDS --username=<user>;; For transports that SVN handles authentication for (http, https, and plain svn), specify the username. For other - transports (eg svn+ssh://), you must include the username in - the URL, eg svn+ssh://foo@svn.bar.com/project + transports (e.g. `svn+ssh://`), you must include the username in + the URL, e.g. `svn+ssh://foo@svn.bar.com/project` --prefix=<prefix>;; This allows one to specify a prefix which is prepended to the names of remotes if trunk/branches/tags are @@ -79,8 +79,22 @@ COMMANDS trailing slash, so be sure you include one in the argument if that is what you want. If --branches/-b is specified, the prefix must include a trailing slash. - Setting a prefix is useful if you wish to track multiple - projects that share a common repository. + Setting a prefix (with a trailing slash) is strongly + encouraged in any case, as your SVN-tracking refs will + then be located at "refs/remotes/$prefix/*", which is + compatible with Git's own remote-tracking ref layout + (refs/remotes/$remote/*). Setting a prefix is also useful + if you wish to track multiple projects that share a common + repository. + By default, the prefix is set to 'origin/'. ++ +NOTE: Before Git v2.0, the default prefix was "" (no prefix). This +meant that SVN-tracking refs were put at "refs/remotes/*", which is +incompatible with how Git's own remote-tracking refs are organized. +If you still want the old default, you can get it by passing +`--prefix ""` on the command line (`--prefix=""` may not work if +your Perl's Getopt::Long is < v2.37). + --ignore-paths=<regex>;; When passed to 'init' or 'clone' this regular expression will be preserved as a config key. See 'fetch' for a description @@ -104,19 +118,22 @@ COMMANDS 'fetch':: Fetch unfetched revisions from the Subversion remote we are tracking. The name of the [svn-remote "..."] section in the - .git/config file may be specified as an optional command-line - argument. + $GIT_DIR/config file may be specified as an optional + command-line argument. ++ +This automatically updates the rev_map if needed (see +'$GIT_DIR/svn/\*\*/.rev_map.*' in the FILES section below for details). --localtime;; - Store Git commit times in the local timezone instead of UTC. This + Store Git commit times in the local time zone instead of UTC. This makes 'git log' (even without --date=local) show the same times - that `svn log` would in the local timezone. + that `svn log` would in the local time zone. + This doesn't interfere with interoperating with the Subversion repository you cloned from, but if you wish for your local Git repository to be able to interoperate with someone else's local Git repository, either don't use this option or you should both use it in -the same local timezone. +the same local time zone. --parent;; Fetch only from the SVN parent of the current HEAD. @@ -131,8 +148,8 @@ the same local timezone. [verse] config key: svn-remote.<name>.ignore-paths + -If the ignore-paths config key is set and the command line option is -also given, both regular expressions will be used. +If the ignore-paths configuration key is set, and the command-line +option is also given, both regular expressions will be used. + Examples: + @@ -204,6 +221,9 @@ accept. However, '--fetch-all' only fetches from the current + Like 'git rebase'; this requires that the working tree be clean and have no uncommitted changes. ++ +This automatically updates the rev_map if needed (see +'$GIT_DIR/svn/\*\*/.rev_map.*' in the FILES section below for details). -l;; --local;; @@ -235,6 +255,10 @@ Use of 'dcommit' is preferred to 'set-tree' (below). config key: svn-remote.<name>.commiturl config key: svn.commiturl (overwrites all svn-remote.<name>.commiturl options) + +Note that the SVN URL of the commiturl config key includes the SVN branch. +If you rather want to set the commit URL for an entire SVN repository use +svn-remote.<name>.pushurl instead. ++ Using this option for any other purpose (don't ask) is very strongly discouraged. @@ -258,9 +282,9 @@ first have already been pushed into SVN. Ask the user to confirm that a patch set should actually be sent to SVN. For each patch, one may answer "yes" (accept this patch), "no" (discard this patch), "all" (accept all patches), or "quit". - + - 'git svn dcommit' returns immediately if answer is "no" or "quit", without - committing anything to SVN. ++ +'git svn dcommit' returns immediately if answer is "no" or "quit", without +committing anything to SVN. 'branch':: Create a branch in the SVN repository. @@ -369,11 +393,13 @@ Any other arguments are passed directly to 'git log' tree-ish to specify which branch should be searched). When given a tree-ish, returns the corresponding SVN revision number. + +-B;; --before;; Don't require an exact match if given an SVN revision, instead find the commit corresponding to the state of the SVN repository (on the current branch) at the specified revision. + +-A;; --after;; Don't require an exact match if given an SVN revision; if there is not an exact match return the closest match searching forward in the @@ -438,8 +464,8 @@ Any other arguments are passed directly to 'git log' specific revision. 'gc':: - Compress $GIT_DIR/svn/<refname>/unhandled.log files in .git/svn - and remove $GIT_DIR/svn/<refname>index files in .git/svn. + Compress $GIT_DIR/svn/<refname>/unhandled.log files and remove + $GIT_DIR/svn/<refname>/index files. 'reset':: Undoes the effects of 'fetch' back to the specified revision. @@ -452,9 +478,10 @@ Any other arguments are passed directly to 'git log' file cannot be ignored forever (with --ignore-paths) the only way to repair the repo is to use 'reset'. + -Only the rev_map and refs/remotes/git-svn are changed. Follow 'reset' -with a 'fetch' and then 'git reset' or 'git rebase' to move local -branches onto the new tree. +Only the rev_map and refs/remotes/git-svn are changed (see +'$GIT_DIR/svn/\*\*/.rev_map.*' in the FILES section below for details). +Follow 'reset' with a 'fetch' and then 'git reset' or 'git rebase' to +move local branches onto the new tree. -r <n>;; --revision=<n>;; @@ -590,21 +617,6 @@ config key: svn.authorsfile Make 'git svn' less verbose. Specify a second time to make it even less verbose. ---repack[=<n>]:: ---repack-flags=<flags>:: - These should help keep disk usage sane for large fetches with - many revisions. -+ ---repack takes an optional argument for the number of revisions -to fetch before repacking. This defaults to repacking every -1000 commits fetched if no argument is specified. -+ ---repack-flags are passed directly to 'git repack'. -+ -[verse] -config key: svn.repack -config key: svn.repackflags - -m:: --merge:: -s<strategy>:: @@ -687,7 +699,7 @@ svn-remote.<name>.noMetadata:: + This option can only be used for one-shot imports as 'git svn' will not be able to fetch again without metadata. Additionally, -if you lose your .git/svn/**/.rev_map.* files, 'git svn' will not +if you lose your '$GIT_DIR/svn/\*\*/.rev_map.*' files, 'git svn' will not be able to rebuild them. + The 'git svn log' command will not work on repositories using @@ -807,16 +819,16 @@ Tracking and contributing to an entire Subversion-managed project ------------------------------------------------------------------------ # Clone a repo with standard SVN directory layout (like git clone): - git svn clone http://svn.example.com/project --stdlayout + git svn clone http://svn.example.com/project --stdlayout --prefix svn/ # Or, if the repo uses a non-standard directory layout: - git svn clone http://svn.example.com/project -T tr -b branch -t tag + git svn clone http://svn.example.com/project -T tr -b branch -t tag --prefix svn/ # View all branches and tags you have cloned: git branch -r # Create a new branch in SVN git svn branch waldo # Reset your master to trunk (or any other branch, replacing 'trunk' # with the appropriate name): - git reset --hard remotes/trunk + git reset --hard svn/trunk # You may only dcommit to one branch/tag/trunk at a time. The usage # of dcommit/rebase/show-ignore should be the same as above. ------------------------------------------------------------------------ @@ -830,7 +842,7 @@ have each person clone that repository with 'git clone': ------------------------------------------------------------------------ # Do the initial import on a server - ssh server "cd /pub && git svn clone http://svn.example.com/project + ssh server "cd /pub && git svn clone http://svn.example.com/project [options...]" # Clone locally - make sure the refs/remotes/ space matches the server mkdir project cd project @@ -843,8 +855,9 @@ have each person clone that repository with 'git clone': git config --remove-section remote.origin # Create a local branch from one of the branches just fetched git checkout -b master FETCH_HEAD -# Initialize 'git svn' locally (be sure to use the same URL and -T/-b/-t options as were used on server) - git svn init http://svn.example.com/project +# Initialize 'git svn' locally (be sure to use the same URL and +# --stdlayout/-T/-b/-t/--prefix options as were used on server) + git svn init http://svn.example.com/project [options...] # Pull the latest changes from Subversion git svn rebase ------------------------------------------------------------------------ @@ -980,8 +993,8 @@ When using multiple --branches or --tags, 'git svn' does not automatically handle name collisions (for example, if two branches from different paths have the same name, or if a branch and a tag have the same name). In these cases, use 'init' to set up your Git repository then, before your first 'fetch', edit -the .git/config file so that the branches and tags are associated with -different name spaces. For example: +the $GIT_DIR/config file so that the branches and tags are associated +with different name spaces. For example: branches = stable/*:refs/remotes/svn/stable/* branches = debug/*:refs/remotes/svn/debug/* @@ -1009,7 +1022,7 @@ CONFIGURATION ------------- 'git svn' stores [svn-remote] configuration information in the -repository .git/config file. It is similar the core Git +repository $GIT_DIR/config file. It is similar the core Git [remote] sections except 'fetch' keys do not accept glob arguments; but they are instead handled by the 'branches' and 'tags' keys. Since some SVN repositories are oddly @@ -1038,8 +1051,8 @@ comma-separated list of names within braces. For example: [svn-remote "huge-project"] url = http://server.org/svn fetch = trunk/src:refs/remotes/trunk - branches = branches/{red,green}/src:refs/remotes/branches/* - tags = tags/{1.0,2.0}/src:refs/remotes/tags/* + branches = branches/{red,green}/src:refs/remotes/project-a/branches/* + tags = tags/{1.0,2.0}/src:refs/remotes/project-a/tags/* ------------------------------------------------------------------------ Multiple fetch, branches, and tags keys are supported: @@ -1063,8 +1076,21 @@ $ git svn branch -d branches/server release-2-3-0 Note that git-svn keeps track of the highest revision in which a branch or tag has appeared. If the subset of branches or tags is changed after -fetching, then .git/svn/.metadata must be manually edited to remove (or -reset) branches-maxRev and/or tags-maxRev as appropriate. +fetching, then $GIT_DIR/svn/.metadata must be manually edited to remove +(or reset) branches-maxRev and/or tags-maxRev as appropriate. + +FILES +----- +$GIT_DIR/svn/\*\*/.rev_map.*:: + Mapping between Subversion revision numbers and Git commit + names. In a repository where the noMetadata option is not set, + this can be rebuilt from the git-svn-id: lines that are at the + end of every commit (see the 'svn.noMetadata' section above for + details). ++ +'git svn fetch' and 'git svn rebase' automatically update the rev_map +if it is missing or not up to date. 'git svn reset' automatically +rewinds it. SEE ALSO -------- diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt index c418c44d40..84f6496bf2 100644 --- a/Documentation/git-tag.txt +++ b/Documentation/git-tag.txt @@ -13,8 +13,7 @@ SYNOPSIS <tagname> [<commit> | <object>] 'git tag' -d <tagname>... 'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>] - [--column[=<options>] | --no-column] [<pattern>...] - [<pattern>...] + [--column[=<options>] | --no-column] [--create-reflog] [<pattern>...] 'git tag' -v <tagname>... DESCRIPTION @@ -42,7 +41,7 @@ committer identity for the current user is used to find the GnuPG key for signing. The configuration variable `gpg.program` is used to specify custom GnuPG binary. -Tag objects (created with `-a`, `s`, or `-u`) are called "annotated" +Tag objects (created with `-a`, `-s`, or `-u`) are called "annotated" tags; they contain a creation date, the tagger name and e-mail, a tagging message, and an optional GnuPG signature. Whereas a "lightweight" tag is simply a name for an object (usually a commit @@ -95,6 +94,17 @@ OPTIONS using fnmatch(3)). Multiple patterns may be given; if any of them matches, the tag is shown. +--sort=<type>:: + Sort in a specific order. Supported type is "refname" + (lexicographic order), "version:refname" or "v:refname" (tag + names are treated as versions). The "version:refname" sort + order can also be affected by the + "versionsort.prereleaseSuffix" configuration variable. Prepend + "-" to reverse sort order. When this option is not given, the + sort order defaults to the value configured for the 'tag.sort' + variable if it exists, or lexicographic order otherwise. See + linkgit:git-config[1]. + --column[=<options>]:: --no-column:: Display tag listing in columns. See configuration variable @@ -103,8 +113,9 @@ OPTIONS + This option is only applicable when listing tags without annotation lines. ---contains <commit>:: - Only list tags which contain the specified commit. +--contains [<commit>]:: + Only list tags which contain the specified commit (HEAD if not + specified). --points-at <object>:: Only list tags of the given object. @@ -131,6 +142,9 @@ This option is only applicable when listing tags without annotation lines. all, 'whitespace' removes just leading/trailing whitespace lines and 'strip' removes both whitespace and commentary. +--create-reflog:: + Create a reflog for the tag. + <tagname>:: The name of the tag to create, delete, or describe. The new tag name must pass all checks defined by @@ -146,13 +160,13 @@ This option is only applicable when listing tags without annotation lines. CONFIGURATION ------------- By default, 'git tag' in sign-with-default mode (-s) will use your -committer identity (of the form "Your Name <\your@email.address>") to +committer identity (of the form `Your Name <your@email.address>`) to find a key. If you want to use a different default key, you can specify it in the repository configuration as follows: ------------------------------------- [user] - signingkey = <gpg-key-id> + signingKey = <gpg-key-id> ------------------------------------- @@ -310,6 +324,7 @@ include::date-formats.txt[] SEE ALSO -------- linkgit:git-check-ref-format[1]. +linkgit:git-config[1]. GIT --- diff --git a/Documentation/git-tar-tree.txt b/Documentation/git-tar-tree.txt deleted file mode 100644 index f7362dc2d1..0000000000 --- a/Documentation/git-tar-tree.txt +++ /dev/null @@ -1,82 +0,0 @@ -git-tar-tree(1) -=============== - -NAME ----- -git-tar-tree - Create a tar archive of the files in the named tree object - - -SYNOPSIS --------- -[verse] -'git tar-tree' [--remote=<repo>] <tree-ish> [ <base> ] - -DESCRIPTION ------------ -THIS COMMAND IS DEPRECATED. Use 'git archive' with `--format=tar` -option instead (and move the <base> argument to `--prefix=base/`). - -Creates a tar archive containing the tree structure for the named tree. -When <base> is specified it is added as a leading path to the files in the -generated tar archive. - -'git tar-tree' behaves differently when given a tree ID versus when given -a commit ID or tag ID. In the first case the current time is used as -modification time of each file in the archive. In the latter case the -commit time as recorded in the referenced commit object is used instead. -Additionally the commit ID is stored in a global extended pax header. -It can be extracted using 'git get-tar-commit-id'. - -OPTIONS -------- - -<tree-ish>:: - The tree or commit to produce tar archive for. If it is - the object name of a commit object. - -<base>:: - Leading path to the files in the resulting tar archive. - ---remote=<repo>:: - Instead of making a tar archive from local repository, - retrieve a tar archive from a remote repository. - -CONFIGURATION -------------- - -tar.umask:: - This variable can be used to restrict the permission bits of - tar archive entries. The default is 0002, which turns off the - world write bit. The special value "user" indicates that the - archiving user's umask will be used instead. See umask(2) for - details. - -EXAMPLES --------- -`git tar-tree HEAD junk | (cd /var/tmp/ && tar xf -)`:: - - Create a tar archive that contains the contents of the - latest commit on the current branch, and extracts it in - `/var/tmp/junk` directory. - -`git tar-tree v1.4.0 git-1.4.0 | gzip >git-1.4.0.tar.gz`:: - - Create a tarball for v1.4.0 release. - -`git tar-tree v1.4.0^{tree} git-1.4.0 | gzip >git-1.4.0.tar.gz`:: - - Create a tarball for v1.4.0 release, but without a - global extended pax header. - -`git tar-tree --remote=example.com:git.git v1.4.0 >git-1.4.0.tar`:: - - Get a tarball v1.4.0 from example.com. - -`git tar-tree HEAD:Documentation/ git-docs > git-1.4.0-docs.tar`:: - - Put everything in the current head's Documentation/ directory - into 'git-1.4.0-docs.tar', with the prefix 'git-docs/'. - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-tools.txt b/Documentation/git-tools.txt index 78a0d955ec..2f4ff50156 100644 --- a/Documentation/git-tools.txt +++ b/Documentation/git-tools.txt @@ -1,118 +1,10 @@ -A short Git tools survey -======================== +Git Tools +========= +When Git was young, people looking for third-party Git-related tools came +to the Git project itself to find them, thus a list of such tools was +maintained here. These days, however, search engines fill that role much +more efficiently, so this manually-maintained list has been retired. -Introduction ------------- - -Apart from Git contrib/ area there are some others third-party tools -you may want to look. - -This document presents a brief summary of each tool and the corresponding -link. - - -Alternative/Augmentative Porcelains ------------------------------------ - - - *Cogito* (http://www.kernel.org/pub/software/scm/cogito/) - - Cogito is a version control system layered on top of the Git tree history - storage system. It aims at seamless user interface and ease of use, - providing generally smoother user experience than the "raw" Core Git - itself and indeed many other version control systems. - - Cogito is no longer maintained as most of its functionality - is now in core Git. - - - - *pg* (http://www.spearce.org/category/projects/scm/pg/) - - pg is a shell script wrapper around Git to help the user manage a set of - patches to files. pg is somewhat like quilt or StGit, but it does have a - slightly different feature set. - - - - *StGit* (http://www.procode.org/stgit/) - - Stacked Git provides a quilt-like patch management functionality in the - Git environment. You can easily manage your patches in the scope of Git - until they get merged upstream. - - -History Viewers ---------------- - - - *gitk* (shipped with git-core) - - gitk is a simple Tk GUI for browsing history of Git repositories easily. - - - - *gitview* (contrib/) - - gitview is a GTK based repository browser for Git - - - - *gitweb* (shipped with git-core) - - Gitweb provides full-fledged web interface for Git repositories. - - - - *qgit* (http://digilander.libero.it/mcostalba/) - - QGit is a git/StGit GUI viewer built on Qt/C++. QGit could be used - to browse history and directory tree, view annotated files, commit - changes cherry picking single files or applying patches. - Currently it is the fastest and most feature rich among the Git - viewers and commit tools. - - - *tig* (http://jonas.nitro.dk/tig/) - - tig by Jonas Fonseca is a simple Git repository browser - written using ncurses. Basically, it just acts as a front-end - for git-log and git-show/git-diff. Additionally, you can also - use it as a pager for Git commands. - - -Foreign SCM interface ---------------------- - - - *git-svn* (shipped with git-core) - - git-svn is a simple conduit for changesets between a single Subversion - branch and Git. - - - - *quilt2git / git2quilt* (http://home-tj.org/wiki/index.php/Misc) - - These utilities convert patch series in a quilt repository and commit - series in Git back and forth. - - - - *hg-to-git* (contrib/) - - hg-to-git converts a Mercurial repository into a Git one, and - preserves the full branch history in the process. hg-to-git can - also be used in an incremental way to keep the Git repository - in sync with the master Mercurial repository. - - -Others ------- - - - *(h)gct* (http://www.cyd.liu.se/users/~freku045/gct/) - - Commit Tool or (h)gct is a GUI enabled commit tool for Git and - Mercurial (hg). It allows the user to view diffs, select which files - to committed (or ignored / reverted) write commit messages and - perform the commit itself. - - - *git.el* (contrib/) - - This is an Emacs interface for Git. The user interface is modelled on - pcl-cvs. It has been developed on Emacs 21 and will probably need some - tweaking to work on XEmacs. - - -http://git.or.cz/gitwiki/InterfacesFrontendsAndTools has more -comprehensive list. +See also the `contrib/` area, and the Git wiki: +http://git.or.cz/gitwiki/InterfacesFrontendsAndTools diff --git a/Documentation/git-unpack-objects.txt b/Documentation/git-unpack-objects.txt index ff23494e70..07d432988f 100644 --- a/Documentation/git-unpack-objects.txt +++ b/Documentation/git-unpack-objects.txt @@ -9,7 +9,7 @@ git-unpack-objects - Unpack objects from a packed archive SYNOPSIS -------- [verse] -'git unpack-objects' [-n] [-q] [-r] [--strict] <pack-file +'git unpack-objects' [-n] [-q] [-r] [--strict] < <packfile> DESCRIPTION @@ -19,8 +19,8 @@ the objects contained within and writing them into the repository in "loose" (one object per file) format. Objects that already exist in the repository will *not* be unpacked -from the pack-file. Therefore, nothing will be unpacked if you use -this command on a pack-file that exists within the target repository. +from the packfile. Therefore, nothing will be unpacked if you use +this command on a packfile that exists within the target repository. See linkgit:git-repack[1] for options to generate new packs and replace existing ones. diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index e0a87029cd..1a296bc29a 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git update-index' [--add] [--remove | --force-remove] [--replace] [--refresh] [-q] [--unmerged] [--ignore-missing] - [(--cacheinfo <mode> <object> <file>)...] + [(--cacheinfo <mode>,<object>,<file>)...] [--chmod=(+|-)x] [--[no-]assume-unchanged] [--[no-]skip-worktree] @@ -68,8 +68,12 @@ OPTIONS --ignore-missing:: Ignores missing files during a --refresh +--cacheinfo <mode>,<object>,<path>:: --cacheinfo <mode> <object> <path>:: - Directly insert the specified info into the index. + Directly insert the specified info into the index. For + backward compatibility, you can also give these three + arguments as three separate parameters, but new users are + encouraged to use a single-parameter form. --index-info:: Read index information from stdin. @@ -78,20 +82,18 @@ OPTIONS Set the execute permissions on the updated files. --[no-]assume-unchanged:: - When these flags are specified, the object names recorded - for the paths are not updated. Instead, these options - set and unset the "assume unchanged" bit for the - paths. When the "assume unchanged" bit is on, Git stops - checking the working tree files for possible - modifications, so you need to manually unset the bit to - tell Git when you change the working tree file. This is + When this flag is specified, the object names recorded + for the paths are not updated. Instead, this option + sets/unsets the "assume unchanged" bit for the + paths. When the "assume unchanged" bit is on, the user + promises not to change the file and allows Git to assume + that the working tree file matches what is recorded in + the index. If you want to change the working tree file, + you need to unset the bit to tell Git. This is sometimes helpful when working with a big project on a filesystem that has very slow lstat(2) system call (e.g. cifs). + -This option can be also used as a coarse file-level mechanism -to ignore uncommitted changes in tracked files (akin to what -`.gitignore` does for untracked files). Git will fail (gracefully) in case it needs to modify this file in the index e.g. when merging in a commit; thus, in case the assumed-untracked file is changed upstream, @@ -157,6 +159,31 @@ may not support it yet. Only meaningful with `--stdin` or `--index-info`; paths are separated with NUL character instead of LF. +--split-index:: +--no-split-index:: + Enable or disable split index mode. If enabled, the index is + split into two files, $GIT_DIR/index and $GIT_DIR/sharedindex.<SHA-1>. + Changes are accumulated in $GIT_DIR/index while the shared + index file contains all index entries stays unchanged. If + split-index mode is already enabled and `--split-index` is + given again, all changes in $GIT_DIR/index are pushed back to + the shared index file. This mode is designed for very large + indexes that take a significant amount of time to read or write. + +--untracked-cache:: +--no-untracked-cache:: + Enable or disable untracked cache extension. This could speed + up for commands that involve determining untracked files such + as `git status`. The underlying operating system and file + system must change `st_mtime` field of a directory if files + are added or deleted in that directory. + +--force-untracked-cache:: + For safety, `--untracked-cache` performs tests on the working + directory to make sure untracked cache can be used. These + tests can take a few seconds. `--force-untracked-cache` can be + used to skip the tests. + \--:: Do not interpret any more arguments as options. @@ -187,7 +214,7 @@ merging. To pretend you have a file with mode and sha1 at path, say: ---------------- -$ git update-index --cacheinfo mode sha1 path +$ git update-index --cacheinfo <mode>,<sha1>,<path> ---------------- '--info-only' is used to register files without placing them in the object diff --git a/Documentation/git-update-ref.txt b/Documentation/git-update-ref.txt index 0df13ff6f4..969bfab2ab 100644 --- a/Documentation/git-update-ref.txt +++ b/Documentation/git-update-ref.txt @@ -8,7 +8,7 @@ git-update-ref - Update the object name stored in a ref safely SYNOPSIS -------- [verse] -'git update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] <ref> <newvalue> [<oldvalue>]) +'git update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] [--create-reflog] <ref> <newvalue> [<oldvalue>] | --stdin [-z]) DESCRIPTION ----------- @@ -58,6 +58,67 @@ archive by creating a symlink tree). With `-d` flag, it deletes the named <ref> after verifying it still contains <oldvalue>. +With `--stdin`, update-ref reads instructions from standard input and +performs all modifications together. Specify commands of the form: + + update SP <ref> SP <newvalue> [SP <oldvalue>] LF + create SP <ref> SP <newvalue> LF + delete SP <ref> [SP <oldvalue>] LF + verify SP <ref> [SP <oldvalue>] LF + option SP <opt> LF + +With `--create-reflog`, update-ref will create a reflog for each ref +even if one would not ordinarily be created. + +Quote fields containing whitespace as if they were strings in C source +code; i.e., surrounded by double-quotes and with backslash escapes. +Use 40 "0" characters or the empty string to specify a zero value. To +specify a missing value, omit the value and its preceding SP entirely. + +Alternatively, use `-z` to specify in NUL-terminated format, without +quoting: + + update SP <ref> NUL <newvalue> NUL [<oldvalue>] NUL + create SP <ref> NUL <newvalue> NUL + delete SP <ref> NUL [<oldvalue>] NUL + verify SP <ref> NUL [<oldvalue>] NUL + option SP <opt> NUL + +In this format, use 40 "0" to specify a zero value, and use the empty +string to specify a missing value. + +In either format, values can be specified in any form that Git +recognizes as an object name. Commands in any other format or a +repeated <ref> produce an error. Command meanings are: + +update:: + Set <ref> to <newvalue> after verifying <oldvalue>, if given. + Specify a zero <newvalue> to ensure the ref does not exist + after the update and/or a zero <oldvalue> to make sure the + ref does not exist before the update. + +create:: + Create <ref> with <newvalue> after verifying it does not + exist. The given <newvalue> may not be zero. + +delete:: + Delete <ref> after verifying it exists with <oldvalue>, if + given. If given, <oldvalue> may not be zero. + +verify:: + Verify <ref> against <oldvalue> but do not change it. If + <oldvalue> zero or missing, the ref must not exist. + +option:: + Modify behavior of the next command naming a <ref>. + The only valid option is `no-deref` to avoid dereferencing + a symbolic ref. + +If all <ref>s can be locked with matching <oldvalue>s +simultaneously, all modifications are performed. Otherwise, no +modifications are performed. Note that while each individual +<ref> is updated or deleted atomically, a concurrent reader may +still see a subset of the modifications. Logging Updates --------------- diff --git a/Documentation/git-upload-archive.txt b/Documentation/git-upload-archive.txt index d09bbb52b1..cbef61ba88 100644 --- a/Documentation/git-upload-archive.txt +++ b/Documentation/git-upload-archive.txt @@ -20,6 +20,38 @@ This command is usually not invoked directly by the end user. The UI for the protocol is on the 'git archive' side, and the program pair is meant to be used to get an archive from a remote repository. +SECURITY +-------- + +In order to protect the privacy of objects that have been removed from +history but may not yet have been pruned, `git-upload-archive` avoids +serving archives for commits and trees that are not reachable from the +repository's refs. However, because calculating object reachability is +computationally expensive, `git-upload-archive` implements a stricter +but easier-to-check set of rules: + + 1. Clients may request a commit or tree that is pointed to directly by + a ref. E.g., `git archive --remote=origin v1.0`. + + 2. Clients may request a sub-tree within a commit or tree using the + `ref:path` syntax. E.g., `git archive --remote=origin v1.0:Documentation`. + + 3. Clients may _not_ use other sha1 expressions, even if the end + result is reachable. E.g., neither a relative commit like `master^` + nor a literal sha1 like `abcd1234` is allowed, even if the result + is reachable from the refs. + +Note that rule 3 disallows many cases that do not have any privacy +implications. These rules are subject to change in future versions of +git, and the server accessed by `git archive --remote` may or may not +follow these exact rules. + +If the config option `uploadArchive.allowUnreachable` is true, these +rules are ignored, and clients may use arbitrary sha1 expressions. +This is useful if you do not care about the privacy of unreachable +objects, or if your object database is already publicly available for +access via non-smart-http. + OPTIONS ------- <directory>:: diff --git a/Documentation/git-verify-commit.txt b/Documentation/git-verify-commit.txt new file mode 100644 index 0000000000..ecf4da16cf --- /dev/null +++ b/Documentation/git-verify-commit.txt @@ -0,0 +1,32 @@ +git-verify-commit(1) +==================== + +NAME +---- +git-verify-commit - Check the GPG signature of commits + +SYNOPSIS +-------- +[verse] +'git verify-commit' <commit>... + +DESCRIPTION +----------- +Validates the gpg signature created by 'git commit -S'. + +OPTIONS +------- +--raw:: + Print the raw gpg status output to standard error instead of the normal + human-readable output. + +-v:: +--verbose:: + Print the contents of the commit object before validating it. + +<commit>...:: + SHA-1 identifiers of Git commit objects. + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/git-verify-pack.txt b/Documentation/git-verify-pack.txt index 526ba7be9c..61ca6d04c2 100644 --- a/Documentation/git-verify-pack.txt +++ b/Documentation/git-verify-pack.txt @@ -40,7 +40,7 @@ OUTPUT FORMAT ------------- When specifying the -v option the format used is: - SHA-1 type size size-in-pack-file offset-in-packfile + SHA-1 type size size-in-packfile offset-in-packfile for objects that are not deltified in the pack, and diff --git a/Documentation/git-verify-tag.txt b/Documentation/git-verify-tag.txt index f88ba96f02..d590edcebd 100644 --- a/Documentation/git-verify-tag.txt +++ b/Documentation/git-verify-tag.txt @@ -16,6 +16,10 @@ Validates the gpg signature created by 'git tag'. OPTIONS ------- +--raw:: + Print the raw gpg status output to standard error instead of the normal + human-readable output. + -v:: --verbose:: Print the contents of the tag object before validating it. diff --git a/Documentation/git-web--browse.txt b/Documentation/git-web--browse.txt index 5aec4ecffb..16ede5b4c3 100644 --- a/Documentation/git-web--browse.txt +++ b/Documentation/git-web--browse.txt @@ -35,6 +35,7 @@ The following browsers (or commands) are currently supported: * open (this is the default under Mac OS X GUI) * start (this is the default under MinGW) * cygstart (this is the default under Cygwin) +* xdg-open Custom commands may also be specified. @@ -61,7 +62,7 @@ CONF.VAR (from -c option) and web.browser ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The web browser can be specified using a configuration variable passed -with the -c (or --config) command line option, or the 'web.browser' +with the -c (or --config) command-line option, or the 'web.browser' configuration variable if the former is not used. browser.<tool>.path @@ -86,7 +87,7 @@ the URLs passed as arguments. Note about konqueror -------------------- -When 'konqueror' is specified by a command line option or a +When 'konqueror' is specified by a command-line option or a configuration variable, we launch 'kfmclient' to try to open the HTML man page on an already opened konqueror in a new tab if possible. diff --git a/Documentation/git-whatchanged.txt b/Documentation/git-whatchanged.txt index c600b61e2b..8b63ceb00e 100644 --- a/Documentation/git-whatchanged.txt +++ b/Documentation/git-whatchanged.txt @@ -13,43 +13,17 @@ SYNOPSIS DESCRIPTION ----------- -Shows commit logs and diff output each commit introduces. The -command internally invokes 'git rev-list' piped to -'git diff-tree', and takes command line options for both of -these commands. -This manual page describes only the most frequently used options. +Shows commit logs and diff output each commit introduces. +New users are encouraged to use linkgit:git-log[1] instead. The +`whatchanged` command is essentially the same as linkgit:git-log[1] +but defaults to show the raw format diff output and to skip merges. -OPTIONS -------- --p:: - Show textual diffs, instead of the Git internal diff - output format that is useful only to tell the changed - paths and their nature of changes. +The command is kept primarily for historical reasons; fingers of +many people who learned Git long before `git log` was invented by +reading Linux kernel mailing list are trained to type it. --<n>:: - Limit output to <n> commits. - -<since>..<until>:: - Limit output to between the two named commits (bottom - exclusive, top inclusive). - --r:: - Show Git internal diff output, but for the whole tree, - not just the top level. - --m:: - By default, differences for merge commits are not shown. - With this flag, show differences to that commit from all - of its parents. -+ -However, it is not very useful in general, although it -*is* useful on a file-by-file basis. - -include::pretty-options.txt[] - -include::pretty-formats.txt[] Examples -------- diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt new file mode 100644 index 0000000000..fb68156cf8 --- /dev/null +++ b/Documentation/git-worktree.txt @@ -0,0 +1,176 @@ +git-worktree(1) +=============== + +NAME +---- +git-worktree - Manage multiple working trees + + +SYNOPSIS +-------- +[verse] +'git worktree add' [-f] [--detach] [-b <new-branch>] <path> [<branch>] +'git worktree prune' [-n] [-v] [--expire <expire>] + +DESCRIPTION +----------- + +Manage multiple working trees attached to the same repository. + +A git repository can support multiple working trees, allowing you to check +out more than one branch at a time. With `git worktree add` a new working +tree is associated with the repository. This new working tree is called a +"linked working tree" as opposed to the "main working tree" prepared by "git +init" or "git clone". A repository has one main working tree (if it's not a +bare repository) and zero or more linked working trees. + +When you are done with a linked working tree you can simply delete it. +The working tree's administrative files in the repository (see +"DETAILS" below) will eventually be removed automatically (see +`gc.worktreePruneExpire` in linkgit:git-config[1]), or you can run +`git worktree prune` in the main or any linked working tree to +clean up any stale administrative files. + +If you move a linked working tree to another file system, or +within a file system that does not support hard links, you need to run +at least one git command inside the linked working tree +(e.g. `git status`) in order to update its administrative files in the +repository so that they do not get automatically pruned. + +If a linked working tree is stored on a portable device or network share +which is not always mounted, you can prevent its administrative files from +being pruned by creating a file named 'locked' alongside the other +administrative files, optionally containing a plain text reason that +pruning should be suppressed. See section "DETAILS" for more information. + +COMMANDS +-------- +add <path> [<branch>]:: + +Create `<path>` and checkout `<branch>` into it. The new working directory +is linked to the current repository, sharing everything except working +directory specific files such as HEAD, index, etc. ++ +If `<branch>` is omitted and neither `-b` nor `-B` nor `--detached` used, +then, as a convenience, a new branch based at HEAD is created automatically, +as if `-b $(basename <path>)` was specified. + +prune:: + +Prune working tree information in $GIT_DIR/worktrees. + +OPTIONS +------- + +-f:: +--force:: + By default, `add` refuses to create a new working tree when `<branch>` + is already checked out by another working tree. This option overrides + that safeguard. + +-b <new-branch>:: +-B <new-branch>:: + With `add`, create a new branch named `<new-branch>` starting at + `<branch>`, and check out `<new-branch>` into the new working tree. + If `<branch>` is omitted, it defaults to HEAD. + By default, `-b` refuses to create a new branch if it already + exists. `-B` overrides this safeguard, resetting `<new-branch>` to + `<branch>`. + +--detach:: + With `add`, detach HEAD in the new working tree. See "DETACHED HEAD" + in linkgit:git-checkout[1]. + +-n:: +--dry-run:: + With `prune`, do not remove anything; just report what it would + remove. + +-v:: +--verbose:: + With `prune`, report all removals. + +--expire <time>:: + With `prune`, only expire unused working trees older than <time>. + +DETAILS +------- +Each linked working tree has a private sub-directory in the repository's +$GIT_DIR/worktrees directory. The private sub-directory's name is usually +the base name of the linked working tree's path, possibly appended with a +number to make it unique. For example, when `$GIT_DIR=/path/main/.git` the +command `git worktree add /path/other/test-next next` creates the linked +working tree in `/path/other/test-next` and also creates a +`$GIT_DIR/worktrees/test-next` directory (or `$GIT_DIR/worktrees/test-next1` +if `test-next` is already taken). + +Within a linked working tree, $GIT_DIR is set to point to this private +directory (e.g. `/path/main/.git/worktrees/test-next` in the example) and +$GIT_COMMON_DIR is set to point back to the main working tree's $GIT_DIR +(e.g. `/path/main/.git`). These settings are made in a `.git` file located at +the top directory of the linked working tree. + +Path resolution via `git rev-parse --git-path` uses either +$GIT_DIR or $GIT_COMMON_DIR depending on the path. For example, in the +linked working tree `git rev-parse --git-path HEAD` returns +`/path/main/.git/worktrees/test-next/HEAD` (not +`/path/other/test-next/.git/HEAD` or `/path/main/.git/HEAD`) while `git +rev-parse --git-path refs/heads/master` uses +$GIT_COMMON_DIR and returns `/path/main/.git/refs/heads/master`, +since refs are shared across all working trees. + +See linkgit:gitrepository-layout[5] for more information. The rule of +thumb is do not make any assumption about whether a path belongs to +$GIT_DIR or $GIT_COMMON_DIR when you need to directly access something +inside $GIT_DIR. Use `git rev-parse --git-path` to get the final path. + +To prevent a $GIT_DIR/worktrees entry from being pruned (which +can be useful in some situations, such as when the +entry's working tree is stored on a portable device), add a file named +'locked' to the entry's directory. The file contains the reason in +plain text. For example, if a linked working tree's `.git` file points +to `/path/main/.git/worktrees/test-next` then a file named +`/path/main/.git/worktrees/test-next/locked` will prevent the +`test-next` entry from being pruned. See +linkgit:gitrepository-layout[5] for details. + +EXAMPLES +-------- +You are in the middle of a refactoring session and your boss comes in and +demands that you fix something immediately. You might typically use +linkgit:git-stash[1] to store your changes away temporarily, however, your +working tree is in such a state of disarray (with new, moved, and removed +files, and other bits and pieces strewn around) that you don't want to risk +disturbing any of it. Instead, you create a temporary linked working tree to +make the emergency fix, remove it when done, and then resume your earlier +refactoring session. + +------------ +$ git worktree add -b emergency-fix ../temp master +$ pushd ../temp +# ... hack hack hack ... +$ git commit -a -m 'emergency fix for boss' +$ popd +$ rm -rf ../temp +$ git worktree prune +------------ + +BUGS +---- +Multiple checkout in general is still experimental, and the support +for submodules is incomplete. It is NOT recommended to make multiple +checkouts of a superproject. + +git-worktree could provide more automation for tasks currently +performed manually, such as: + +- `remove` to remove a linked working tree and its administrative files (and + warn if the working tree is dirty) +- `mv` to move or rename a working tree and update its administrative files +- `list` to list linked working trees +- `lock` to prevent automatic pruning of administrative files (for instance, + for a working tree on a portable device) + +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/git.txt b/Documentation/git.txt index 5b83e0ab98..4e5d55be6a 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -9,7 +9,7 @@ git - the stupid content tracker SYNOPSIS -------- [verse] -'git' [--version] [--help] [-c <name>=<value>] +'git' [--version] [--help] [-C <path>] [-c <name>=<value>] [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path] [-p|--paginate|--no-pager] [--no-replace-objects] [--bare] [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>] @@ -22,14 +22,14 @@ unusually rich command set that provides both high-level operations and full access to internals. See linkgit:gittutorial[7] to get started, then see -link:everyday.html[Everyday Git] for a useful minimum set of +linkgit:giteveryday[7] for a useful minimum set of commands. The link:user-manual.html[Git User's Manual] has a more in-depth introduction. After you mastered the basic concepts, you can come back to this page to learn what commands Git offers. You can learn more about individual Git commands with "git help command". linkgit:gitcli[7] -manual page gives you an overview of the command line command syntax. +manual page gives you an overview of the command-line command syntax. Formatted and hyperlinked version of the latest Git documentation can be viewed at `http://git-htmldocs.googlecode.com/git/git.html`. @@ -39,13 +39,96 @@ ifdef::stalenotes[] ============ You are reading the documentation for the latest (possibly -unreleased) version of Git, that is available from 'master' +unreleased) version of Git, that is available from the 'master' branch of the `git.git` repository. Documentation for older releases are available here: -* link:v1.8.4.1/git.html[documentation for release 1.8.4.1] +* link:v2.5.1/git.html[documentation for release 2.5.1] * release notes for + link:RelNotes/2.5.1.txt[2.5.1], + link:RelNotes/2.5.0.txt[2.5]. + +* link:v2.4.8/git.html[documentation for release 2.4.8] + +* release notes for + link:RelNotes/2.4.8.txt[2.4.8], + link:RelNotes/2.4.7.txt[2.4.7], + link:RelNotes/2.4.6.txt[2.4.6], + link:RelNotes/2.4.5.txt[2.4.5], + link:RelNotes/2.4.4.txt[2.4.4], + link:RelNotes/2.4.3.txt[2.4.3], + link:RelNotes/2.4.2.txt[2.4.2], + link:RelNotes/2.4.1.txt[2.4.1], + link:RelNotes/2.4.0.txt[2.4]. + +* link:v2.3.8/git.html[documentation for release 2.3.8] + +* release notes for + link:RelNotes/2.3.8.txt[2.3.8], + link:RelNotes/2.3.7.txt[2.3.7], + link:RelNotes/2.3.6.txt[2.3.6], + link:RelNotes/2.3.5.txt[2.3.5], + link:RelNotes/2.3.4.txt[2.3.4], + link:RelNotes/2.3.3.txt[2.3.3], + link:RelNotes/2.3.2.txt[2.3.2], + link:RelNotes/2.3.1.txt[2.3.1], + link:RelNotes/2.3.0.txt[2.3]. + +* link:v2.2.2/git.html[documentation for release 2.2.2] + +* release notes for + link:RelNotes/2.2.2.txt[2.2.2], + link:RelNotes/2.2.1.txt[2.2.1], + link:RelNotes/2.2.0.txt[2.2]. + +* link:v2.1.4/git.html[documentation for release 2.1.4] + +* release notes for + link:RelNotes/2.1.4.txt[2.1.4], + link:RelNotes/2.1.3.txt[2.1.3], + link:RelNotes/2.1.2.txt[2.1.2], + link:RelNotes/2.1.1.txt[2.1.1], + link:RelNotes/2.1.0.txt[2.1]. + +* link:v2.0.5/git.html[documentation for release 2.0.5] + +* release notes for + link:RelNotes/2.0.5.txt[2.0.5], + link:RelNotes/2.0.4.txt[2.0.4], + link:RelNotes/2.0.3.txt[2.0.3], + link:RelNotes/2.0.2.txt[2.0.2], + link:RelNotes/2.0.1.txt[2.0.1], + link:RelNotes/2.0.0.txt[2.0.0]. + +* link:v1.9.5/git.html[documentation for release 1.9.5] + +* release notes for + link:RelNotes/1.9.5.txt[1.9.5], + link:RelNotes/1.9.4.txt[1.9.4], + link:RelNotes/1.9.3.txt[1.9.3], + link:RelNotes/1.9.2.txt[1.9.2], + link:RelNotes/1.9.1.txt[1.9.1], + link:RelNotes/1.9.0.txt[1.9.0]. + +* link:v1.8.5.6/git.html[documentation for release 1.8.5.6] + +* release notes for + link:RelNotes/1.8.5.6.txt[1.8.5.6], + link:RelNotes/1.8.5.5.txt[1.8.5.5], + link:RelNotes/1.8.5.4.txt[1.8.5.4], + link:RelNotes/1.8.5.3.txt[1.8.5.3], + link:RelNotes/1.8.5.2.txt[1.8.5.2], + link:RelNotes/1.8.5.1.txt[1.8.5.1], + link:RelNotes/1.8.5.txt[1.8.5]. + +* link:v1.8.4.5/git.html[documentation for release 1.8.4.5] + +* release notes for + link:RelNotes/1.8.4.5.txt[1.8.4.5], + link:RelNotes/1.8.4.4.txt[1.8.4.4], + link:RelNotes/1.8.4.3.txt[1.8.4.3], + link:RelNotes/1.8.4.2.txt[1.8.4.2], link:RelNotes/1.8.4.1.txt[1.8.4.1], link:RelNotes/1.8.4.txt[1.8.4]. @@ -396,11 +479,30 @@ displayed. See linkgit:git-help[1] for more information, because `git --help ...` is converted internally into `git help ...`. +-C <path>:: + Run as if git was started in '<path>' instead of the current working + directory. When multiple `-C` options are given, each subsequent + non-absolute `-C <path>` is interpreted relative to the preceding `-C + <path>`. ++ +This option affects options that expect path name like `--git-dir` and +`--work-tree` in that their interpretations of the path names would be +made relative to the working directory caused by the `-C` option. For +example the following invocations are equivalent: + + git --git-dir=a.git --work-tree=b -C c status + git --git-dir=c/a.git --work-tree=c/b status + -c <name>=<value>:: Pass a configuration parameter to the command. The value given will override values from configuration files. The <name> is expected in the same format as listed by 'git config' (subkeys separated by dots). ++ +Note that omitting the `=` in `git -c foo.bar ...` is allowed and sets +`foo.bar` to the boolean true value (just like `[foo]bar` would in a +config file). Including the equals but with an empty value (like `git -c +foo.bar= ...`) sets `foo.bar` to the empty string. --exec-path[=<path>]:: Path to wherever your core Git programs are installed. @@ -458,10 +560,25 @@ help ...`. linkgit:git-replace[1] for more information. --literal-pathspecs:: - Treat pathspecs literally, rather than as glob patterns. This is - equivalent to setting the `GIT_LITERAL_PATHSPECS` environment + Treat pathspecs literally (i.e. no globbing, no pathspec magic). + This is equivalent to setting the `GIT_LITERAL_PATHSPECS` environment variable to `1`. +--glob-pathspecs:: + Add "glob" magic to all pathspec. This is equivalent to setting + the `GIT_GLOB_PATHSPECS` environment variable to `1`. Disabling + globbing on individual pathspecs can be done using pathspec + magic ":(literal)" + +--noglob-pathspecs:: + Add "literal" magic to all pathspec. This is equivalent to setting + the `GIT_NOGLOB_PATHSPECS` environment variable to `1`. Enabling + globbing on individual pathspecs can be done using pathspec + magic ":(glob)" + +--icase-pathspecs:: + Add "icase" magic to all pathspec. This is equivalent to setting + the `GIT_ICASE_PATHSPECS` environment variable to `1`. GIT COMMANDS ------------ @@ -665,13 +782,19 @@ The Git Repository ~~~~~~~~~~~~~~~~~~ These environment variables apply to 'all' core Git commands. Nb: it is worth noting that they may be used/overridden by SCMS sitting above -Git so take care if using Cogito etc. +Git so take care if using a foreign front-end. 'GIT_INDEX_FILE':: This environment allows the specification of an alternate index file. If not specified, the default of `$GIT_DIR/index` is used. +'GIT_INDEX_VERSION':: + This environment variable allows the specification of an index + version for new repositories. It won't affect existing index + files. By default index file version 2 or 3 is used. See + linkgit:git-update-index[1] for more information. + 'GIT_OBJECT_DIRECTORY':: If the object storage directory is specified via this environment variable then the sha1 directories are created @@ -693,7 +816,7 @@ Git so take care if using Cogito etc. 'GIT_WORK_TREE':: Set the path to the root of the working tree. - This can also be controlled by the '--work-tree' command line + This can also be controlled by the '--work-tree' command-line option and the core.worktree configuration variable. 'GIT_NAMESPACE':: @@ -725,6 +848,15 @@ Git so take care if using Cogito etc. an explicit repository directory set via 'GIT_DIR' or on the command line. +'GIT_COMMON_DIR':: + If this variable is set to a path, non-worktree files that are + normally in $GIT_DIR will be taken from this path + instead. Worktree-specific files such as HEAD or index are + taken from $GIT_DIR. See linkgit:gitrepository-layout[5] and + linkgit:git-worktree[1] for + details. This variable has lower precedence than other path + variables such as GIT_INDEX_FILE, GIT_OBJECT_DIRECTORY... + Git Commits ~~~~~~~~~~~ 'GIT_AUTHOR_NAME':: @@ -767,6 +899,15 @@ temporary file --- it is removed when 'GIT_EXTERNAL_DIFF' exits. + For a path that is unmerged, 'GIT_EXTERNAL_DIFF' is called with 1 parameter, <path>. ++ +For each path 'GIT_EXTERNAL_DIFF' is called, two environment variables, +'GIT_DIFF_PATH_COUNTER' and 'GIT_DIFF_PATH_TOTAL' are set. + +'GIT_DIFF_PATH_COUNTER':: + A 1-based counter incremented by one for every path. + +'GIT_DIFF_PATH_TOTAL':: + The total number of paths. other ~~~~~ @@ -788,19 +929,21 @@ other and the `core.editor` option in linkgit:git-config[1]. 'GIT_SSH':: - If this environment variable is set then 'git fetch' - and 'git push' will use this command instead - of 'ssh' when they need to connect to a remote system. - The '$GIT_SSH' command will be given exactly two or - four arguments: the 'username@host' (or just 'host') - from the URL and the shell command to execute on that - remote system, optionally preceded by '-p' (literally) and - the 'port' from the URL when it specifies something other - than the default SSH port. +'GIT_SSH_COMMAND':: + If either of these environment variables is set then 'git fetch' + and 'git push' will use the specified command instead of 'ssh' + when they need to connect to a remote system. + The command will be given exactly two or four arguments: the + 'username@host' (or just 'host') from the URL and the shell + command to execute on that remote system, optionally preceded by + '-p' (literally) and the 'port' from the URL when it specifies + something other than the default SSH port. + -To pass options to the program that you want to list in GIT_SSH -you will need to wrap the program and options into a shell script, -then set GIT_SSH to refer to the shell script. +`$GIT_SSH_COMMAND` takes precedence over `$GIT_SSH`, and is interpreted +by the shell, which allows additional arguments to be included. +`$GIT_SSH` on the other hand must be just the path to a program +(which can be a wrapper shell script, if additional arguments are +needed). + Usually it is easier to configure any desired options through your personal `.ssh/config` file. Please consult your ssh documentation @@ -809,10 +952,14 @@ for further details. 'GIT_ASKPASS':: If this environment variable is set, then Git commands which need to acquire passwords or passphrases (e.g. for HTTP or IMAP authentication) - will call this program with a suitable prompt as command line argument - and read the password from its STDOUT. See also the 'core.askpass' + will call this program with a suitable prompt as command-line argument + and read the password from its STDOUT. See also the 'core.askPass' option in linkgit:git-config[1]. +'GIT_TERMINAL_PROMPT':: + If this environment variable is set to `0`, git will not prompt + on the terminal (e.g., when asking for HTTP authentication). + 'GIT_CONFIG_NOSYSTEM':: Whether to skip reading settings from the system-wide `$(prefix)/etc/gitconfig` file. This environment variable can @@ -824,7 +971,7 @@ for further details. 'GIT_FLUSH':: If this environment variable is set to "1", then commands such as 'git blame' (in incremental mode), 'git rev-list', 'git log', - 'git check-attr', 'git check-ignore', and 'git whatchanged' will + 'git check-attr' and 'git check-ignore' will force a flush of the output stream after each record have been flushed. If this variable is set to "0", the output of these commands will be done @@ -833,31 +980,65 @@ for further details. based on whether stdout appears to be redirected to a file or not. 'GIT_TRACE':: - If this variable is set to "1", "2" or "true" (comparison - is case insensitive), Git will print `trace:` messages on - stderr telling about alias expansion, built-in command - execution and external command execution. - If this variable is set to an integer value greater than 1 - and lower than 10 (strictly) then Git will interpret this - value as an open file descriptor and will try to write the - trace messages into this file descriptor. - Alternatively, if this variable is set to an absolute path - (starting with a '/' character), Git will interpret this - as a file path and will try to write the trace messages - into it. + Enables general trace messages, e.g. alias expansion, built-in + command execution and external command execution. ++ +If this variable is set to "1", "2" or "true" (comparison +is case insensitive), trace messages will be printed to +stderr. ++ +If the variable is set to an integer value greater than 2 +and lower than 10 (strictly) then Git will interpret this +value as an open file descriptor and will try to write the +trace messages into this file descriptor. ++ +Alternatively, if the variable is set to an absolute path +(starting with a '/' character), Git will interpret this +as a file path and will try to write the trace messages +into it. ++ +Unsetting the variable, or setting it to empty, "0" or +"false" (case insensitive) disables trace messages. 'GIT_TRACE_PACK_ACCESS':: - If this variable is set to a path, a file will be created at - the given path logging all accesses to any packs. For each + Enables trace messages for all accesses to any packs. For each access, the pack file name and an offset in the pack is recorded. This may be helpful for troubleshooting some pack-related performance problems. + See 'GIT_TRACE' for available trace output options. 'GIT_TRACE_PACKET':: - If this variable is set, it shows a trace of all packets - coming in or out of a given program. This can help with - debugging object negotiation or other protocol issues. Tracing - is turned off at a packet starting with "PACK". + Enables trace messages for all packets coming in or out of a + given program. This can help with debugging object negotiation + or other protocol issues. Tracing is turned off at a packet + starting with "PACK" (but see 'GIT_TRACE_PACKFILE' below). + See 'GIT_TRACE' for available trace output options. + +'GIT_TRACE_PACKFILE':: + Enables tracing of packfiles sent or received by a + given program. Unlike other trace output, this trace is + verbatim: no headers, and no quoting of binary data. You almost + certainly want to direct into a file (e.g., + `GIT_TRACE_PACKFILE=/tmp/my.pack`) rather than displaying it on + the terminal or mixing it with other trace output. ++ +Note that this is currently only implemented for the client side +of clones and fetches. + +'GIT_TRACE_PERFORMANCE':: + Enables performance related trace messages, e.g. total execution + time of each Git command. + See 'GIT_TRACE' for available trace output options. + +'GIT_TRACE_SETUP':: + Enables trace messages printing the .git, working tree and current + working directory after Git has completed its setup phase. + See 'GIT_TRACE' for available trace output options. + +'GIT_TRACE_SHALLOW':: + Enables trace messages that can help debugging fetching / + cloning of shallow repositories. + See 'GIT_TRACE' for available trace output options. GIT_LITERAL_PATHSPECS:: Setting this variable to `1` will cause Git to treat all @@ -868,6 +1049,39 @@ GIT_LITERAL_PATHSPECS:: literal paths to Git (e.g., paths previously given to you by `git ls-tree`, `--raw` diff output, etc). +GIT_GLOB_PATHSPECS:: + Setting this variable to `1` will cause Git to treat all + pathspecs as glob patterns (aka "glob" magic). + +GIT_NOGLOB_PATHSPECS:: + Setting this variable to `1` will cause Git to treat all + pathspecs as literal (aka "literal" magic). + +GIT_ICASE_PATHSPECS:: + Setting this variable to `1` will cause Git to treat all + pathspecs as case-insensitive. + +'GIT_REFLOG_ACTION':: + When a ref is updated, reflog entries are created to keep + track of the reason why the ref was updated (which is + typically the name of the high-level command that updated + the ref), in addition to the old and new values of the ref. + A scripted Porcelain command can use set_reflog_action + helper function in `git-sh-setup` to set its name to this + variable when it is invoked as the top level command by the + end user, to be recorded in the body of the reflog. + +`GIT_REF_PARANOIA`:: + If set to `1`, include broken or badly named refs when iterating + over lists of refs. In a normal, non-corrupted repository, this + does nothing. However, enabling it may help git to detect and + abort some operations in the presence of broken refs. Git sets + this variable automatically when performing destructive + operations like linkgit:git-prune[1]. You should not need to set + it yourself unless you want to be paranoid about making sure + an operation has touched every ref (e.g., because you are + cloning a repository to make a backup). + Discussion[[Discussion]] ------------------------ @@ -949,7 +1163,7 @@ Authors ------- Git was started by Linus Torvalds, and is currently maintained by Junio C Hamano. Numerous contributions have come from the Git mailing list -<git@vger.kernel.org>. http://www.ohloh.net/p/git/contributors/summary +<git@vger.kernel.org>. http://www.openhub.net/p/git/contributors/summary gives you a more complete list of contributors. If you have a clone of git.git itself, the @@ -966,7 +1180,7 @@ subscribed to the list to send a message there. SEE ALSO -------- linkgit:gittutorial[7], linkgit:gittutorial-2[7], -link:everyday.html[Everyday Git], linkgit:gitcvs-migration[7], +linkgit:giteveryday[7], linkgit:gitcvs-migration[7], linkgit:gitglossary[7], linkgit:gitcore-tutorial[7], linkgit:gitcli[7], link:user-manual.html[The Git User's Manual], linkgit:gitworkflows[7] diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index b322a2666c..e3b1de8033 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -80,7 +80,7 @@ Attributes which should be version-controlled and distributed to other repositories (i.e., attributes of interest to all users) should go into `.gitattributes` files. Attributes that should affect all repositories for a single user should be placed in a file specified by the -`core.attributesfile` configuration option (see linkgit:git-config[1]). +`core.attributesFile` configuration option (see linkgit:git-config[1]). Its default value is $XDG_CONFIG_HOME/git/attributes. If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/attributes is used instead. Attributes for all users on a system should be placed in the @@ -440,8 +440,8 @@ Unspecified:: A path to which the `diff` attribute is unspecified first gets its contents inspected, and if it looks like - text, it is treated as text. Otherwise it would - generate `Binary files differ`. + text and is smaller than core.bigFileThreshold, it is treated + as text. Otherwise it would generate `Binary files differ`. String:: @@ -527,6 +527,8 @@ patterns are available: - `fortran` suitable for source code in the Fortran language. +- `fountain` suitable for Fountain documents. + - `html` suitable for HTML/XHTML documents. - `java` suitable for source code in the Java language. @@ -665,7 +667,7 @@ data by examining the beginning of the contents. However, sometimes you may want to override its decision, either because a blob contains binary data later in the file, or because the content, while technically composed of text characters, is opaque to a human reader. For example, -many postscript files contain only ascii characters, but produce noisy +many postscript files contain only ASCII characters, but produce noisy and meaningless diffs. The simplest way to mark a file as binary is to unset the diff @@ -680,7 +682,7 @@ patch, if binary patches are enabled) instead of a regular diff. However, one may also want to specify other diff driver attributes. For example, you might want to use `textconv` to convert postscript files to -an ascii representation for human viewing, but otherwise treat them as +an ASCII representation for human viewing, but otherwise treat them as binary files. You cannot specify both `-diff` and `diff=ps` attributes. The solution is to use the `diff.*.binary` config option: @@ -774,7 +776,7 @@ To define a custom merge driver `filfre`, add a section to your ---------------------------------------------------------------- [merge "filfre"] name = feel-free merge driver - driver = filfre %O %A %B + driver = filfre %O %A %B %L %P recursive = binary ---------------------------------------------------------------- @@ -800,6 +802,9 @@ merge between common ancestors, when there are more than one. When left unspecified, the driver itself is used for both internal merge and the final merge. +The merge driver can learn the pathname in which the merged result +will be stored via placeholder `%P`. + `conflict-marker-size` ^^^^^^^^^^^^^^^^^^^^^^ @@ -930,9 +935,12 @@ state. DEFINING MACRO ATTRIBUTES ------------------------- -Custom macro attributes can be defined only in the `.gitattributes` -file at the toplevel (i.e. not in any subdirectory). The built-in -macro attribute "binary" is equivalent to: +Custom macro attributes can be defined only in top-level gitattributes +files (`$GIT_DIR/info/attributes`, the `.gitattributes` file at the +top level of the working tree, or the global or system-wide +gitattributes files), not in `.gitattributes` files in working tree +subdirectories. The built-in macro attribute "binary" is equivalent +to: ------------ [attr]binary -diff -merge -text diff --git a/Documentation/gitcli.txt b/Documentation/gitcli.txt index 9ac5088acd..dfe7d83727 100644 --- a/Documentation/gitcli.txt +++ b/Documentation/gitcli.txt @@ -3,7 +3,7 @@ gitcli(7) NAME ---- -gitcli - Git command line interface and conventions +gitcli - Git command-line interface and conventions SYNOPSIS -------- @@ -28,7 +28,7 @@ arguments. Here are the rules: they can be disambiguated by placing `--` between them. E.g. `git diff -- HEAD` is, "I have a file called HEAD in my work tree. Please show changes between the version I staged in the index - and what I have in the work tree for that file". not "show difference + and what I have in the work tree for that file", not "show difference between the HEAD commit and the work tree as a whole". You can say `git diff HEAD --` to ask for the latter. @@ -59,32 +59,36 @@ working tree. After running `git add hello.c; rm hello.c`, you will _not_ see `hello.c` in your working tree with the former, but with the latter you will. + * Just as the filesystem '.' (period) refers to the current directory, + using a '.' as a repository name in Git (a dot-repository) is a relative + path and means your current repository. + Here are the rules regarding the "flags" that you should follow when you are scripting Git: - * it's preferred to use the non dashed form of Git commands, which means that + * it's preferred to use the non-dashed form of Git commands, which means that you should prefer `git foo` to `git-foo`. * splitting short options to separate words (prefer `git foo -a -b` to `git foo -ab`, the latter may not even work). - * when a command line option takes an argument, use the 'sticked' form. In + * when a command-line option takes an argument, use the 'stuck' form. In other words, write `git foo -oArg` instead of `git foo -o Arg` for short options, and `git foo --long-opt=Arg` instead of `git foo --long-opt Arg` for long options. An option that takes optional option-argument must be - written in the 'sticked' form. + written in the 'stuck' form. * when you give a revision parameter to a command, make sure the parameter is not ambiguous with a name of a file in the work tree. E.g. do not write `git log -1 HEAD` but write `git log -1 HEAD --`; the former will not work if you happen to have a file called `HEAD` in the work tree. - * many commands allow a long option "--option" to be abbreviated + * many commands allow a long option `--option` to be abbreviated only to their unique prefix (e.g. if there is no other option - whose name begins with "opt", you may be able to spell "--opt" to - invoke the "--option" flag), but you should fully spell them out + whose name begins with `opt`, you may be able to spell `--opt` to + invoke the `--option` flag), but you should fully spell them out when writing your scripts; later versions of Git may introduce a - new option whose name shares the same prefix, e.g. "--optimize", + new option whose name shares the same prefix, e.g. `--optimize`, to make a short prefix that used to be unique no longer unique. @@ -99,14 +103,14 @@ Here is a list of the facilities provided by this option parser. Magic Options ~~~~~~~~~~~~~ Commands which have the enhanced option parser activated all understand a -couple of magic command line options: +couple of magic command-line options: -h:: gives a pretty printed usage of the command. + --------------------------------------------- $ git describe -h -usage: git describe [options] <committish>* +usage: git describe [options] <commit-ish>* or: git describe [options] --dirty --contains find the tag that comes after the commit @@ -145,7 +149,7 @@ prefix of a long option as if it is fully spelled out, but use this with a caution. For example, `git commit --amen` behaves as if you typed `git commit --amend`, but that is true only until a later version of Git introduces another option that shares the same prefix, -e.g `git commit --amenity" option. +e.g. `git commit --amenity` option. Separating argument from the option @@ -161,7 +165,7 @@ $ git foo -o Arg ---------------------------- However, this is *NOT* allowed for switches with an optional value, where the -'sticked' form must be used: +'stuck' form must be used: ---------------------------- $ git describe --abbrev HEAD # correct $ git describe --abbrev=10 HEAD # correct diff --git a/Documentation/gitcore-tutorial.txt b/Documentation/gitcore-tutorial.txt index f538a870c7..36e9ab3e16 100644 --- a/Documentation/gitcore-tutorial.txt +++ b/Documentation/gitcore-tutorial.txt @@ -259,7 +259,7 @@ index 557db03..263414f 100644 @@ -1 +1,2 @@ Hello World +It's a new day for git ----- +------------ i.e. the diff of the change we caused by adding another line to `hello`. @@ -534,42 +534,9 @@ all, but just show the actual commit message. In fact, together with the 'git rev-list' program (which generates a list of revisions), 'git diff-tree' ends up being a veritable fount of -changes. A trivial (but very useful) script called 'git whatchanged' is -included with Git which does exactly this, and shows a log of recent -activities. - -To see the whole history of our pitiful little git-tutorial project, you -can do - ----------------- -$ git log ----------------- - -which shows just the log messages, or if we want to see the log together -with the associated patches use the more complex (and much more -powerful) - ----------------- -$ git whatchanged -p ----------------- - -and you will see exactly what has changed in the repository over its -short history. - -[NOTE] -When using the above two commands, the initial commit will be shown. -If this is a problem because it is huge, you can hide it by setting -the log.showroot configuration variable to false. Having this, you -can still show it for each command just adding the `--root` option, -which is a flag for 'git diff-tree' accepted by both commands. - -With that, you should now be having some inkling of what Git does, and -can explore on your own. - -[NOTE] -Most likely, you are not directly using the core -Git Plumbing commands, but using Porcelain such as 'git add', `git-rm' -and `git-commit'. +changes. You can emulate `git log`, `git log -p`, etc. with a trivial +script that pipes the output of `git rev-list` to `git diff-tree --stdin`, +which was exactly how early versions of `git log` were implemented. Tagging a version @@ -1476,7 +1443,7 @@ Although Git is a truly distributed system, it is often convenient to organize your project with an informal hierarchy of developers. Linux kernel development is run this way. There is a nice illustration (page 17, "Merges to Mainline") in -link:http://www.xenotime.net/linux/mentor/linux-mentoring-2006.pdf[Randy Dunlap's presentation]. +http://www.xenotime.net/linux/mentor/linux-mentoring-2006.pdf[Randy Dunlap's presentation]. It should be stressed that this hierarchy is purely *informal*. There is nothing fundamental in Git that enforces the "chain of @@ -1700,7 +1667,7 @@ linkgit:gittutorial[7], linkgit:gittutorial-2[7], linkgit:gitcvs-migration[7], linkgit:git-help[1], -link:everyday.html[Everyday git], +linkgit:giteveryday[7], link:user-manual.html[The Git User's Manual] GIT diff --git a/Documentation/gitcredentials.txt b/Documentation/gitcredentials.txt index 47576be5db..1c75be0803 100644 --- a/Documentation/gitcredentials.txt +++ b/Documentation/gitcredentials.txt @@ -32,7 +32,7 @@ strategies to ask the user for usernames and passwords: to the program on the command line, and the user's input is read from its standard output. -2. Otherwise, if the `core.askpass` configuration variable is set, its +2. Otherwise, if the `core.askPass` configuration variable is set, its value is used as above. 3. Otherwise, if the `SSH_ASKPASS` environment variable is set, its diff --git a/Documentation/gitcvs-migration.txt b/Documentation/gitcvs-migration.txt index 5ab5b0727f..b06e852a85 100644 --- a/Documentation/gitcvs-migration.txt +++ b/Documentation/gitcvs-migration.txt @@ -117,7 +117,7 @@ Importing a CVS archive ----------------------- First, install version 2.1 or higher of cvsps from -link:http://www.cobite.com/cvsps/[http://www.cobite.com/cvsps/] and make +http://www.cobite.com/cvsps/[http://www.cobite.com/cvsps/] and make sure it is in your path. Then cd to a checked out CVS working directory of the project you are interested in and run linkgit:git-cvsimport[1]: @@ -157,7 +157,7 @@ points. You can use these, for example, to send all commits to the shared repository to a mailing list. See linkgit:githooks[5]. You can enforce finer grained permissions using update hooks. See -link:howto/update-hook-example.txt[Controlling access to branches using +link:howto/update-hook-example.html[Controlling access to branches using update hooks]. Providing CVS Access to a Git Repository @@ -194,7 +194,7 @@ linkgit:gittutorial[7], linkgit:gittutorial-2[7], linkgit:gitcore-tutorial[7], linkgit:gitglossary[7], -link:everyday.html[Everyday Git], +linkgit:giteveryday[7], link:user-manual.html[The Git User's Manual] GIT diff --git a/Documentation/gitdiffcore.txt b/Documentation/gitdiffcore.txt index c8b3e51c84..c579593e55 100644 --- a/Documentation/gitdiffcore.txt +++ b/Documentation/gitdiffcore.txt @@ -28,8 +28,8 @@ The 'git diff-{asterisk}' family works by first comparing two sets of files: - 'git diff-index' compares contents of a "tree" object and the - working directory (when '\--cached' flag is not used) or a - "tree" object and the index file (when '\--cached' flag is + working directory (when '--cached' flag is not used) or a + "tree" object and the index file (when '--cached' flag is used); - 'git diff-files' compares contents of the index file and the @@ -142,7 +142,7 @@ merges these filepairs and creates: When the "-C" option is used, the original contents of modified files, and deleted files (and also unmodified files, if the -"\--find-copies-harder" option is used) are considered as candidates +"--find-copies-harder" option is used) are considered as candidates of the source files in rename/copy operation. If the input were like these filepairs, that talk about a modified file fileY and a newly created file file0: diff --git a/Documentation/everyday.txt b/Documentation/giteveryday.txt index e1fba85660..7be6e64846 100644 --- a/Documentation/everyday.txt +++ b/Documentation/giteveryday.txt @@ -1,22 +1,37 @@ +giteveryday(7) +=============== + +NAME +---- +giteveryday - A useful minimum set of commands for Everyday Git + +SYNOPSIS +-------- + Everyday Git With 20 Commands Or So -=================================== -<<Individual Developer (Standalone)>> commands are essential for -anybody who makes a commit, even for somebody who works alone. +DESCRIPTION +----------- -If you work with other people, you will need commands listed in -the <<Individual Developer (Participant)>> section as well. +Git users can broadly be grouped into four categories for the purposes of +describing here a small set of useful command for everyday Git. -People who play the <<Integrator>> role need to learn some more -commands in addition to the above. +* <<STANDALONE,Individual Developer (Standalone)>> commands are essential + for anybody who makes a commit, even for somebody who works alone. -<<Repository Administration>> commands are for system -administrators who are responsible for the care and feeding -of Git repositories. +* If you work with other people, you will need commands listed in + the <<PARTICIPANT,Individual Developer (Participant)>> section as well. +* People who play the <<INTEGRATOR,Integrator>> role need to learn some + more commands in addition to the above. -Individual Developer (Standalone)[[Individual Developer (Standalone)]] ----------------------------------------------------------------------- +* <<ADMINISTRATION,Repository Administration>> commands are for system + administrators who are responsible for the care and feeding + of Git repositories. + + +Individual Developer (Standalone)[[STANDALONE]] +----------------------------------------------- A standalone individual developer does not exchange patches with other people, and works alone in a single repository, using the @@ -24,8 +39,6 @@ following commands. * linkgit:git-init[1] to create a new repository. - * linkgit:git-show-branch[1] to see where you are. - * linkgit:git-log[1] to see what happened. * linkgit:git-checkout[1] and linkgit:git-branch[1] to switch @@ -45,7 +58,7 @@ following commands. * linkgit:git-rebase[1] to maintain topic branches. - * linkgit:git-tag[1] to mark known point. + * linkgit:git-tag[1] to mark a known point. Examples ~~~~~~~~ @@ -75,14 +88,12 @@ $ edit/compile/test $ git diff HEAD <4> $ git commit -a -s <5> $ edit/compile/test -$ git reset --soft HEAD^ <6> -$ edit/compile/test -$ git diff ORIG_HEAD <7> -$ git commit -a -c ORIG_HEAD <8> -$ git checkout master <9> -$ git merge alsa-audio <10> -$ git log --since='3 days ago' <11> -$ git log v2.43.. curses/ <12> +$ git diff HEAD^ <6> +$ git commit -a --amend <7> +$ git checkout master <8> +$ git merge alsa-audio <9> +$ git log --since='3 days ago' <10> +$ git log v2.43.. curses/ <11> ------------ + <1> create a new topic branch. @@ -90,22 +101,21 @@ $ git log v2.43.. curses/ <12> <3> you need to tell Git if you added a new file; removal and modification will be caught if you do `git commit -a` later. <4> to see what changes you are committing. -<5> commit everything as you have tested, with your sign-off. -<6> take the last commit back, keeping what is in the working tree. -<7> look at the changes since the premature commit we took back. -<8> redo the commit undone in the previous step, using the message -you originally wrote. -<9> switch to the master branch. -<10> merge a topic branch into your master branch. -<11> review commit logs; other forms to limit output can be -combined and include `--max-count=10` (show 10 commits), +<5> commit everything, as you have tested, with your sign-off. +<6> look at all your changes including the previous commit. +<7> amend the previous commit, adding all your new changes, +using your original message. +<8> switch to the master branch. +<9> merge a topic branch into your master branch. +<10> review commit logs; other forms to limit output can be +combined and include `-10` (to show up to 10 commits), `--until=2005-12-10`, etc. -<12> view only the changes that touch what's in `curses/` +<11> view only the changes that touch what's in `curses/` directory, since `v2.43` tag. -Individual Developer (Participant)[[Individual Developer (Participant)]] ------------------------------------------------------------------------- +Individual Developer (Participant)[[PARTICIPANT]] +------------------------------------------------- A developer working as a participant in a group project needs to learn how to communicate with others, and uses these commands in @@ -123,6 +133,13 @@ addition to the ones needed by a standalone developer. * linkgit:git-format-patch[1] to prepare e-mail submission, if you adopt Linux kernel-style public forum workflow. + * linkgit:git-send-email[1] to send your e-mail submission without + corruption by your MUA. + + * linkgit:git-request-pull[1] to create a summary of changes + for your upstream to pull. + + Examples ~~~~~~~~ @@ -131,28 +148,34 @@ Clone the upstream and work on it. Feed changes to upstream.:: ------------ $ git clone git://git.kernel.org/pub/scm/.../torvalds/linux-2.6 my2.6 $ cd my2.6 -$ edit/compile/test; git commit -a -s <1> -$ git format-patch origin <2> -$ git pull <3> -$ git log -p ORIG_HEAD.. arch/i386 include/asm-i386 <4> -$ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <5> -$ git reset --hard ORIG_HEAD <6> -$ git gc <7> -$ git fetch --tags <8> +$ git checkout -b mine master <1> +$ edit/compile/test; git commit -a -s <2> +$ git format-patch master <3> +$ git send-email --to="person <email@example.com>" 00*.patch <4> +$ git checkout master <5> +$ git pull <6> +$ git log -p ORIG_HEAD.. arch/i386 include/asm-i386 <7> +$ git ls-remote --heads http://git.kernel.org/.../jgarzik/libata-dev.git <8> +$ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <9> +$ git reset --hard ORIG_HEAD <10> +$ git gc <11> ------------ + -<1> repeat as needed. -<2> extract patches from your branch for e-mail submission. -<3> `git pull` fetches from `origin` by default and merges into the +<1> checkout a new branch `mine` from master. +<2> repeat as needed. +<3> extract patches from your branch, relative to master, +<4> and email them. +<5> return to `master`, ready to see what's new +<6> `git pull` fetches from `origin` by default and merges into the current branch. -<4> immediately after pulling, look at the changes done upstream +<7> immediately after pulling, look at the changes done upstream since last time we checked, only in the area we are interested in. -<5> fetch from a specific branch from a specific repository and merge. -<6> revert the pull. -<7> garbage collect leftover objects from reverted pull. -<8> from time to time, obtain official tags from the `origin` -and store them under `.git/refs/tags/`. +<8> check the branch names in an external repository (if not known). +<9> fetch from a specific branch `ALL` from a specific repository +and merge it. +<10> revert the pull. +<11> garbage collect leftover objects from reverted pull. Push into another repository.:: @@ -166,7 +189,7 @@ remote.origin.fetch refs/heads/*:refs/remotes/origin/* branch.master.remote origin branch.master.merge refs/heads/master satellite$ git config remote.origin.push \ - master:refs/remotes/satellite/master <3> + +refs/heads/*:refs/remotes/satellite/* <3> satellite$ edit/compile/test/commit satellite$ git push origin <4> @@ -181,11 +204,12 @@ machine. <2> clone sets these configuration variables by default. It arranges `git pull` to fetch and store the branches of mothership machine to local `remotes/origin/*` remote-tracking branches. -<3> arrange `git push` to push local `master` branch to -`remotes/satellite/master` branch of the mothership machine. -<4> push will stash our work away on `remotes/satellite/master` -remote-tracking branch on the mothership machine. You could use this -as a back-up method. +<3> arrange `git push` to push all local branches to +their corresponding branch of the mothership machine. +<4> push will stash all our work away on `remotes/satellite/*` +remote-tracking branches on the mothership machine. You could use this +as a back-up method. Likewise, you can pretend that mothership +"fetched" from you (useful when access is one sided). <5> on mothership machine, merge the work done on the satellite machine into the master branch. @@ -195,17 +219,22 @@ Branch off of a specific tag.:: $ git checkout -b private2.6.14 v2.6.14 <1> $ edit/compile/test; git commit -a $ git checkout master -$ git format-patch -k -m --stdout v2.6.14..private2.6.14 | - git am -3 -k <2> +$ git cherry-pick v2.6.14..private2.6.14 <2> ------------ + <1> create a private branch based on a well known (but somewhat behind) tag. <2> forward port all changes in `private2.6.14` branch to `master` branch -without a formal "merging". +without a formal "merging". Or longhand + +`git format-patch -k -m --stdout v2.6.14..private2.6.14 | + git am -3 -k` +An alternate participant submission mechanism is using the +`git request-pull` or pull-request mechanisms (e.g as used on +GitHub (www.github.com) to notify your upstream of your +contribution. -Integrator[[Integrator]] +Integrator[[INTEGRATOR]] ------------------------ A fairly central person acting as the integrator in a group @@ -213,6 +242,13 @@ project receives changes made by others, reviews and integrates them and publishes the result for others to use, using these commands in addition to the ones needed by participants. +This section can also be used by those who respond to `git +request-pull` or pull-request on GitHub (www.github.com) to +integrate the work of others into their history. An sub-area +lieutenant for a repository will act both as a participant and +as an integrator. + + * linkgit:git-am[1] to apply patches e-mailed in from your contributors. @@ -229,19 +265,19 @@ commands in addition to the ones needed by participants. Examples ~~~~~~~~ -My typical Git day.:: +A typical integrator's Git day.:: + ------------ $ git status <1> -$ git show-branch <2> +$ git branch --no-merged master <2> $ mailx <3> & s 2 3 4 5 ./+to-apply & s 7 8 ./+hold-linus & q $ git checkout -b topic/one master -$ git am -3 -i -s -u ./+to-apply <4> +$ git am -3 -i -s ./+to-apply <4> $ compile/test -$ git checkout -b hold/linus && git am -3 -i -s -u ./+hold-linus <5> +$ git checkout -b hold/linus && git am -3 -i -s ./+hold-linus <5> $ git checkout topic/one && git rebase master <6> $ git checkout pu && git reset --hard next <7> $ git merge topic/one topic/two && git merge hold/linus <8> @@ -249,51 +285,51 @@ $ git checkout maint $ git cherry-pick master~4 <9> $ compile/test $ git tag -s -m "GIT 0.99.9x" v0.99.9x <10> -$ git fetch ko && git show-branch master maint 'tags/ko-*' <11> -$ git push ko <12> -$ git push ko v0.99.9x <13> +$ git fetch ko && for branch in master maint next pu <11> + do + git show-branch ko/$branch $branch <12> + done +$ git push --follow-tags ko <13> ------------ + -<1> see what I was in the middle of doing, if any. -<2> see what topic branches I have and think about how ready -they are. +<1> see what you were in the middle of doing, if anything. +<2> see which branches haven't been merged into `master` yet. +Likewise for any other integration branches e.g. `maint`, `next` +and `pu` (potential updates). <3> read mails, save ones that are applicable, and save others -that are not quite ready. -<4> apply them, interactively, with my sign-offs. -<5> create topic branch as needed and apply, again with my -sign-offs. +that are not quite ready (other mail readers are available). +<4> apply them, interactively, with your sign-offs. +<5> create topic branch as needed and apply, again with sign-offs. <6> rebase internal topic branch that has not been merged to the -master, nor exposed as a part of a stable branch. +master or exposed as a part of a stable branch. <7> restart `pu` every time from the next. <8> and bundle topic branches still cooking. <9> backport a critical fix. <10> create a signed tag. -<11> make sure I did not accidentally rewind master beyond what I -already pushed out. `ko` shorthand points at the repository I have -at kernel.org, and looks like this: +<11> make sure master was not accidentally rewound beyond that +already pushed out. `ko` shorthand points at the Git maintainer's +repository at kernel.org, and looks like this: + ------------ -$ cat .git/remotes/ko -URL: kernel.org:/pub/scm/git/git.git -Pull: master:refs/tags/ko-master -Pull: next:refs/tags/ko-next -Pull: maint:refs/tags/ko-maint -Push: master -Push: next -Push: +pu -Push: maint +(in .git/config) +[remote "ko"] + url = kernel.org:/pub/scm/git/git.git + fetch = refs/heads/*:refs/remotes/ko/* + push = refs/heads/master + push = refs/heads/next + push = +refs/heads/pu + push = refs/heads/maint ------------ + -In the output from `git show-branch`, `master` should have -everything `ko-master` has, and `next` should have -everything `ko-next` has. - -<12> push out the bleeding edge. -<13> push the tag out, too. +<12> In the output from `git show-branch`, `master` should have +everything `ko/master` has, and `next` should have +everything `ko/next` has, etc. +<13> push out the bleeding edge, together with new tags that point +into the pushed history. -Repository Administration[[Repository Administration]] ------------------------------------------------------- +Repository Administration[[ADMINISTRATION]] +------------------------------------------- A repository administrator uses the following tools to set up and maintain access to the repository by developers. @@ -304,9 +340,19 @@ and maintain access to the repository by developers. * linkgit:git-shell[1] can be used as a 'restricted login shell' for shared central repository users. -link:howto/update-hook-example.txt[update hook howto] has a good + * linkgit:git-http-backend[1] provides a server side implementation + of Git-over-HTTP ("Smart http") allowing both fetch and push services. + + * linkgit:gitweb[1] provides a web front-end to Git repositories, + which can be set-up using the linkgit:git-instaweb[1] script. + +link:howto/update-hook-example.html[update hook howto] has a good example of managing a shared central repository. +In addition there are a number of other widely deployed hosting, browsing +and reviewing solutions such as: + + * gitolite, gerrit code review, cgit and others. Examples ~~~~~~~~ @@ -335,22 +381,25 @@ $ cat /etc/xinetd.d/git-daemon # description: The Git server offers access to Git repositories service git { - disable = no - type = UNLISTED - port = 9418 - socket_type = stream - wait = no - user = nobody - server = /usr/bin/git-daemon - server_args = --inetd --export-all --base-path=/pub/scm - log_on_failure += USERID + disable = no + type = UNLISTED + port = 9418 + socket_type = stream + wait = no + user = nobody + server = /usr/bin/git-daemon + server_args = --inetd --export-all --base-path=/pub/scm + log_on_failure += USERID } ------------ + Check your xinetd(8) documentation and setup, this is from a Fedora system. Others might be different. -Give push/pull only access to developers.:: +Give push/pull only access to developers using git-over-ssh.:: + +e.g. those using: +`$ git push/pull ssh://host.xz/pub/scm/project` + ------------ $ grep git /etc/passwd <1> @@ -363,8 +412,8 @@ $ grep git /etc/shells <2> ------------ + <1> log-in shell is set to /usr/bin/git-shell, which does not -allow anything but `git push` and `git pull`. The users should -get an ssh access to the machine. +allow anything but `git push` and `git pull`. The users require +ssh access to the machine. <2> in many distributions /etc/shells needs to list what is used as the login shell. @@ -401,13 +450,6 @@ for branch policy control. david is the release manager and is the only person who can create and push version tags. -HTTP server to support dumb protocol transfer.:: -+ ------------- -dev$ git update-server-info <1> -dev$ ftp user@isp.example.com <2> -ftp> cp -r .git /home/user/myproject.git ------------- -+ -<1> make sure your info/refs and objects/info/packs are up-to-date -<2> upload to public HTTP server hosted by your ISP. +GIT +--- +Part of the linkgit:git[1] suite diff --git a/Documentation/gitglossary.txt b/Documentation/gitglossary.txt index e52de7dbb4..212e254adc 100644 --- a/Documentation/gitglossary.txt +++ b/Documentation/gitglossary.txt @@ -19,7 +19,7 @@ SEE ALSO linkgit:gittutorial[7], linkgit:gittutorial-2[7], linkgit:gitcvs-migration[7], -link:everyday.html[Everyday Git], +linkgit:giteveryday[7], link:user-manual.html[The Git User's Manual] GIT diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index d48bf4d6fa..7ba0ac965d 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -175,7 +175,7 @@ if the merge failed due to conflicts. This hook can be used in conjunction with a corresponding pre-commit hook to save and restore any form of metadata associated with the working tree -(eg: permissions/ownership, ACLS, etc). See contrib/hooks/setgitperms.perl +(e.g.: permissions/ownership, ACLS, etc). See contrib/hooks/setgitperms.perl for an example of how to do this. pre-push @@ -251,7 +251,7 @@ three parameters: - the name of the ref being updated, - the old object name stored in the ref, - - and the new objectname to be stored in the ref. + - and the new object name to be stored in the ref. A zero exit from the update hook allows the ref to be updated. Exiting with a non-zero status prevents 'git-receive-pack' @@ -341,6 +341,36 @@ Both standard output and standard error output are forwarded to 'git send-pack' on the other end, so you can simply `echo` messages for the user. +push-to-checkout +~~~~~~~~~~~~~~~~ + +This hook is invoked by 'git-receive-pack' on the remote repository, +which happens when a 'git push' is done on a local repository, when +the push tries to update the branch that is currently checked out +and the `receive.denyCurrentBranch` configuration variable is set to +`updateInstead`. Such a push by default is refused if the working +tree and the index of the remote repository has any difference from +the currently checked out commit; when both the working tree and the +index match the current commit, they are updated to match the newly +pushed tip of the branch. This hook is to be used to override the +default behaviour. + +The hook receives the commit with which the tip of the current +branch is going to be updated. It can exit with a non-zero status +to refuse the push (when it does so, it must not modify the index or +the working tree). Or it can make any necessary changes to the +working tree and to the index to bring them to the desired state +when the tip of the current branch is updated to the new commit, and +exit with a zero status. + +For example, the hook can simply run `git read-tree -u -m HEAD "$1"` +in order to emulate 'git fetch' that is run in the reverse direction +with `git push`, as the two-tree form of `read-tree -u -m` is +essentially the same as `git checkout` that switches branches while +keeping the local changes in the working tree that do not interfere +with the difference between the branches. + + pre-auto-gc ~~~~~~~~~~~ diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt index 54e334e3af..473623d631 100644 --- a/Documentation/gitignore.txt +++ b/Documentation/gitignore.txt @@ -7,7 +7,7 @@ gitignore - Specifies intentionally untracked files to ignore SYNOPSIS -------- -$GIT_DIR/info/exclude, .gitignore +$HOME/.config/git/ignore, $GIT_DIR/info/exclude, .gitignore DESCRIPTION ----------- @@ -38,7 +38,7 @@ precedence, the last matching pattern decides the outcome): * Patterns read from `$GIT_DIR/info/exclude`. * Patterns read from the file specified by the configuration - variable 'core.excludesfile'. + variable 'core.excludesFile'. Which file to place a pattern in depends on how the pattern is meant to be used. @@ -56,7 +56,7 @@ be used. * Patterns which a user wants Git to ignore in all situations (e.g., backup or temporary files generated by the user's editor of choice) generally go into a file specified by - `core.excludesfile` in the user's `~/.gitconfig`. Its default value is + `core.excludesFile` in the user's `~/.gitconfig`. Its default value is $XDG_CONFIG_HOME/git/ignore. If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/ignore is used instead. @@ -77,10 +77,15 @@ PATTERN FORMAT Put a backslash ("`\`") in front of the first hash for patterns that begin with a hash. + - Trailing spaces are ignored unless they are quoted with backslash + ("`\`"). + - An optional prefix "`!`" which negates the pattern; any matching file excluded by a previous pattern will become - included again. If a negated pattern matches, this will - override lower precedence patterns sources. + included again. It is not possible to re-include a file if a parent + directory of that file is excluded. Git doesn't list excluded + directories for performance reasons, so any patterns on contained + files have no effect, no matter where they are defined. Put a backslash ("`\`") in front of the first "`!`" for patterns that begin with a literal "`!`", for example, "`\!important!.txt`". @@ -113,12 +118,12 @@ full pathname may have special meaning: - A leading "`**`" followed by a slash means match in all directories. For example, "`**/foo`" matches file or directory - "`foo`" anywhere, the same as pattern "`foo`". "**/foo/bar" + "`foo`" anywhere, the same as pattern "`foo`". "`**/foo/bar`" matches file or directory "`bar`" anywhere that is directly under directory "`foo`". - - A trailing "/**" matches everything inside. For example, - "abc/**" matches all files inside directory "abc", relative + - A trailing "`/**`" matches everything inside. For example, + "`abc/**`" matches all files inside directory "`abc`", relative to the location of the `.gitignore` file, with infinite depth. - A slash followed by two consecutive asterisks then a slash @@ -133,9 +138,6 @@ NOTES The purpose of gitignore files is to ensure that certain files not tracked by Git remain untracked. -To ignore uncommitted changes in a file that is already tracked, -use 'git update-index {litdd}assume-unchanged'. - To stop tracking a file that is currently tracked, use 'git rm --cached'. @@ -182,10 +184,22 @@ Another example: The second .gitignore prevents Git from ignoring `arch/foo/kernel/vmlinux.lds.S`. +Example to exclude everything except a specific directory `foo/bar` +(note the `/*` - without the slash, the wildcard would also exclude +everything within `foo/bar`): + +-------------------------------------------------------------- + $ cat .gitignore + # exclude everything except directory foo/bar + /* + !/foo + /foo/* + !/foo/bar +-------------------------------------------------------------- + SEE ALSO -------- linkgit:git-rm[1], -linkgit:git-update-index[1], linkgit:gitrepository-layout[5], linkgit:git-check-ignore[1] diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt index c17e760184..6ade002176 100644 --- a/Documentation/gitk.txt +++ b/Documentation/gitk.txt @@ -8,7 +8,7 @@ gitk - The Git repository browser SYNOPSIS -------- [verse] -'gitk' [<option>...] [<revs>] [--] [<path>...] +'gitk' [<options>] [<revision range>] [\--] [<path>...] DESCRIPTION ----------- @@ -16,21 +16,38 @@ Displays changes in a repository or a selected set of commits. This includes visualizing the commit graph, showing information related to each commit, and the files in the trees of each revision. -Historically, gitk was the first repository browser. It's written in tcl/tk -and started off in a separate repository but was later merged into the main -Git repository. - OPTIONS ------- -To control which revisions to show, the command takes options applicable to -the 'git rev-list' command (see linkgit:git-rev-list[1]). -This manual page describes only the most -frequently used options. --n <number>:: ---max-count=<number>:: +To control which revisions to show, gitk supports most options +applicable to the 'git rev-list' command. It also supports a few +options applicable to the 'git diff-*' commands to control how the +changes each commit introduces are shown. Finally, it supports some +gitk-specific options. + +gitk generally only understands options with arguments in the +'sticked' form (see linkgit:gitcli[7]) due to limitations in the +command-line parser. + +rev-list options and arguments +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +This manual page describes only the most frequently used options. See +linkgit:git-rev-list[1] for a complete list. + +--all:: + + Show all refs (branches, tags, etc.). + +--branches[=<pattern>]:: +--tags[=<pattern>]:: +--remotes[=<pattern>]:: - Limits the number of commits to show. + Pretend as if all the branches (tags, remote branches, resp.) + are listed on the command line as '<commit>'. If '<pattern>' + is given, limit refs to ones matching given shell glob. If + pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the + end is implied. --since=<date>:: @@ -40,9 +57,9 @@ frequently used options. Show commits older than a specific date. ---all:: +--date-order:: - Show all branches. + Sort commits by date when possible. --merge:: @@ -51,19 +68,53 @@ frequently used options. that modify the conflicted files and do not exist on all the heads being merged. ---argscmd=<command>:: - Command to be run each time gitk has to determine the list of - <revs> to show. The command is expected to print on its standard - output a list of additional revs to be shown, one per line. - Use this instead of explicitly specifying <revs> if the set of - commits to show may vary between refreshes. +--left-right:: ---select-commit=<ref>:: + Mark which side of a symmetric diff a commit is reachable + from. Commits from the left side are prefixed with a `<` + symbol and those from the right with a `>` symbol. - Automatically select the specified commit after loading the graph. - Default behavior is equivalent to specifying '--select-commit=HEAD'. +--full-history:: + + When filtering history with '<path>...', does not prune some + history. (See "History simplification" in linkgit:git-log[1] + for a more detailed explanation.) + +--simplify-merges:: + + Additional option to '--full-history' to remove some needless + merges from the resulting history, as there are no selected + commits contributing to this merge. (See "History + simplification" in linkgit:git-log[1] for a more detailed + explanation.) + +--ancestry-path:: -<revs>:: + When given a range of commits to display + (e.g. 'commit1..commit2' or 'commit2 {caret}commit1'), only + display commits that exist directly on the ancestry chain + between the 'commit1' and 'commit2', i.e. commits that are + both descendants of 'commit1', and ancestors of 'commit2'. + (See "History simplification" in linkgit:git-log[1] for a more + detailed explanation.) + +-L<start>,<end>:<file>:: +-L:<funcname>:<file>:: + + Trace the evolution of the line range given by "<start>,<end>" + (or the function name regex <funcname>) within the <file>. You may + not give any pathspec limiters. This is currently limited to + a walk starting from a single revision, i.e., you may only + give zero or one positive revision arguments. + You can specify this option more than once. ++ +*Note:* gitk (unlike linkgit:git-log[1]) currently only understands +this option if you specify it "glued together" with its argument. Do +*not* put a space after `-L`. ++ +include::line-range-format.txt[] + +<revision range>:: Limit the revisions to show. This can be either a single revision meaning show from the given revision and back, or it can be a range in @@ -78,6 +129,23 @@ frequently used options. avoid ambiguity with respect to revision names use "--" to separate the paths from any preceding options. +gitk-specific options +~~~~~~~~~~~~~~~~~~~~~ + +--argscmd=<command>:: + + Command to be run each time gitk has to determine the revision + range to show. The command is expected to print on its + standard output a list of additional revisions to be shown, + one per line. Use this instead of explicitly specifying a + '<revision range>' if the set of commits to show may vary + between refreshes. + +--select-commit=<ref>:: + + Select the specified commit after loading the graph. + Default behavior is equivalent to specifying '--select-commit=HEAD'. + Examples -------- gitk v2.6.12.. include/scsi drivers/scsi:: @@ -98,8 +166,21 @@ gitk --max-count=100 --all \-- Makefile:: Files ----- -Gitk creates the .gitk file in your $HOME directory to store preferences -such as display options, font, and colors. +User configuration and preferences are stored at: + +* '$XDG_CONFIG_HOME/git/gitk' if it exists, otherwise +* '$HOME/.gitk' if it exists + +If neither of the above exist then '$XDG_CONFIG_HOME/git/gitk' is created and +used by default. If '$XDG_CONFIG_HOME' is not set it defaults to +'$HOME/.config' in all cases. + +History +------- +Gitk was the first graphical repository browser. It's written in +tcl/tk and started off in a separate repository but was later merged +into the main Git repository. + SEE ALSO -------- diff --git a/Documentation/gitmodules.txt b/Documentation/gitmodules.txt index 6a1ca4abad..ac70eca321 100644 --- a/Documentation/gitmodules.txt +++ b/Documentation/gitmodules.txt @@ -35,19 +35,18 @@ submodule.<name>.url:: linkgit:git-clone[1] or (if it begins with ./ or ../) a location relative to the superproject's origin repository. +In addition, there are a number of optional keys: + submodule.<name>.update:: - Defines what to do when the submodule is updated by the superproject. - If 'checkout' (the default), the new commit specified in the - superproject will be checked out in the submodule on a detached HEAD. - If 'rebase', the current branch of the submodule will be rebased onto - the commit specified in the superproject. If 'merge', the commit - specified in the superproject will be merged into the current branch - in the submodule. - If 'none', the submodule with name `$name` will not be updated - by default. - - This config option is overridden if 'git submodule update' is given - the '--merge', '--rebase' or '--checkout' options. + Defines the default update procedure for the named submodule, + i.e. how the submodule is updated by "git submodule update" + command in the superproject. This is only used by `git + submodule init` to initialize the configuration variable of + the same name. Allowed values here are 'checkout', 'rebase', + 'merge' or 'none'. See description of 'update' command in + linkgit:git-submodule[1] for their meaning. Note that the + '!command' form is intentionally ignored here for security + reasons. submodule.<name>.branch:: A remote branch name for tracking updates in the upstream submodule. @@ -65,7 +64,9 @@ submodule.<name>.fetchRecurseSubmodules:: submodule.<name>.ignore:: Defines under what circumstances "git status" and the diff family show a submodule as modified. When set to "all", it will never be considered - modified, "dirty" will ignore all changes to the submodules work tree and + modified (but will nonetheless show up in the output of status and + commit when it has been staged), "dirty" will ignore all changes + to the submodules work tree and takes only differences between the HEAD of the submodule and the commit recorded in the superproject into account. "untracked" will additionally let submodules with modified tracked files in their work tree show up. @@ -75,7 +76,8 @@ submodule.<name>.ignore:: the superproject, the setting there will override the one found in .gitmodules. Both settings can be overridden on the command line by using the - "--ignore-submodule" option. + "--ignore-submodule" option. The 'git submodule' commands are not + affected by this setting. EXAMPLES diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt index 0827f69139..78e0b27c18 100644 --- a/Documentation/gitremote-helpers.txt +++ b/Documentation/gitremote-helpers.txt @@ -120,6 +120,11 @@ connecting (see the 'connect' command under COMMANDS). When choosing between 'push' and 'export', Git prefers 'push'. Other frontends may have some other order of preference. +'no-private-update':: + When using the 'refspec' capability, git normally updates the + private ref on successful push. This update is disabled when + the remote-helper declares the capability 'no-private-update'. + Capabilities for Fetching ^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -143,6 +148,10 @@ Supported commands: 'list', 'fetch'. + Supported commands: 'list', 'import'. +'check-connectivity':: + Can guarantee that when a clone is requested, the received + pack is self contained and is connected. + If a helper advertises 'connect', Git will use it if possible and fall back to another capability if the helper requests so when connecting (see the 'connect' command under COMMANDS). @@ -176,6 +185,12 @@ applicable refspec takes precedence. The left-hand of refspecs advertised with this capability must cover all refs reported by the list command. If no 'refspec' capability is advertised, there is an implied `refspec *:*`. ++ +When writing remote-helpers for decentralized version control +systems, it is advised to keep a local copy of the repository to +interact with, and to let the private namespace refs point to this +local repository, while the refs/remotes namespace is used to track +the remote repository. 'bidi-import':: This modifies the 'import' capability. @@ -270,6 +285,9 @@ Optionally may output a 'lock <file>' line indicating a file under GIT_DIR/objects/pack which is keeping a pack until refs can be suitably updated. + +If option 'check-connectivity' is requested, the helper must output +'connectivity-ok' if the clone is self-contained and connected. ++ Supported if the helper has the "fetch" capability. 'push' +<src>:<dst>:: @@ -390,14 +408,14 @@ set by Git if the remote helper has the 'option' capability. of <n> correspond to the number of -v flags passed on the command line. -'option progress' \{'true'|'false'\}:: +'option progress' {'true'|'false'}:: Enables (or disables) progress messages displayed by the transport helper during a command. 'option depth' <depth>:: Deepens the history of a shallow repository. -'option followtags' \{'true'|'false'\}:: +'option followtags' {'true'|'false'}:: If enabled the helper should automatically fetch annotated tag objects if the object the tag points at was transferred during the fetch command. If the tag is not fetched by @@ -405,7 +423,7 @@ set by Git if the remote helper has the 'option' capability. ask for the tag specifically. Some helpers may be able to use this option to avoid a second network connection. -'option dry-run' \{'true'|'false'\}: +'option dry-run' {'true'|'false'}: If true, pretend the operation completed successfully, but don't actually change any repository data. For most helpers this only applies to the 'push', if supported. @@ -416,12 +434,35 @@ set by Git if the remote helper has the 'option' capability. must not rely on this option being set before connect request occurs. +'option check-connectivity' {'true'|'false'}:: + Request the helper to check connectivity of a clone. + +'option force' {'true'|'false'}:: + Request the helper to perform a force update. Defaults to + 'false'. + +'option cloning {'true'|'false'}:: + Notify the helper this is a clone request (i.e. the current + repository is guaranteed empty). + +'option update-shallow {'true'|'false'}:: + Allow to extend .git/shallow if the new refs require it. + +'option pushcert {'true'|'false'}:: + GPG sign pushes. + SEE ALSO -------- linkgit:git-remote[1] +linkgit:git-remote-ext[1] + +linkgit:git-remote-fd[1] + linkgit:git-remote-testgit[1] +linkgit:git-fast-import[1] + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/gitrepository-layout.txt b/Documentation/gitrepository-layout.txt index aa03882ddb..577ee844e0 100644 --- a/Documentation/gitrepository-layout.txt +++ b/Documentation/gitrepository-layout.txt @@ -46,6 +46,9 @@ of incomplete object store is not suitable to be published for use with dumb transports but otherwise is OK as long as `objects/info/alternates` points at the object stores it borrows from. ++ +This directory is ignored if $GIT_COMMON_DIR is set and +"$GIT_COMMON_DIR/objects" will be used instead. objects/[0-9a-f][0-9a-f]:: A newly created object is stored in its own file. @@ -92,7 +95,8 @@ refs:: References are stored in subdirectories of this directory. The 'git prune' command knows to preserve objects reachable from refs found in this directory and - its subdirectories. + its subdirectories. This directory is ignored if $GIT_COMMON_DIR + is set and "$GIT_COMMON_DIR/refs" will be used instead. refs/heads/`name`:: records tip-of-the-tree commit objects of branch `name` @@ -114,7 +118,8 @@ refs/replace/`<obj-sha1>`:: packed-refs:: records the same information as refs/heads/, refs/tags/, and friends record in a more efficient way. See - linkgit:git-pack-refs[1]. + linkgit:git-pack-refs[1]. This file is ignored if $GIT_COMMON_DIR + is set and "$GIT_COMMON_DIR/packed-refs" will be used instead. HEAD:: A symref (see glossary) to the `refs/heads/` namespace @@ -133,6 +138,11 @@ being a symref to point at the current branch. Such a state is often called 'detached HEAD.' See linkgit:git-checkout[1] for details. +config:: + Repository specific configuration file. This file is ignored + if $GIT_COMMON_DIR is set and "$GIT_COMMON_DIR/config" will be + used instead. + branches:: A slightly deprecated way to store shorthands to be used to specify a URL to 'git fetch', 'git pull' and 'git push'. @@ -140,7 +150,10 @@ branches:: 'name' can be given to these commands in place of 'repository' argument. See the REMOTES section in linkgit:git-fetch[1] for details. This mechanism is legacy - and not likely to be found in modern repositories. + and not likely to be found in modern repositories. This + directory is ignored if $GIT_COMMON_DIR is set and + "$GIT_COMMON_DIR/branches" will be used instead. + hooks:: Hooks are customization scripts used by various Git @@ -149,15 +162,22 @@ hooks:: default. To enable, the `.sample` suffix has to be removed from the filename by renaming. Read linkgit:githooks[5] for more details about - each hook. + each hook. This directory is ignored if $GIT_COMMON_DIR is set + and "$GIT_COMMON_DIR/hooks" will be used instead. + index:: The current index file for the repository. It is usually not found in a bare repository. +sharedindex.<SHA-1>:: + The shared index part, to be referenced by $GIT_DIR/index and + other temporary index files. Only valid in split index mode. + info:: Additional information about the repository is recorded - in this directory. + in this directory. This directory is ignored if $GIT_COMMON_DIR + is set and "$GIT_COMMON_DIR/index" will be used instead. info/refs:: This file helps dumb transports discover what refs are @@ -176,6 +196,10 @@ info/grafts:: per line describes a commit and its fake parents by listing their 40-byte hexadecimal object names separated by a space and terminated by a newline. ++ +Note that the grafts mechanism is outdated and can lead to problems +transferring objects between repositories; see linkgit:git-replace[1] +for a more flexible and robust system to do the same thing. info/exclude:: This file, by convention among Porcelains, stores the @@ -193,12 +217,15 @@ remotes:: when interacting with remote repositories via 'git fetch', 'git pull' and 'git push' commands. See the REMOTES section in linkgit:git-fetch[1] for details. This mechanism is legacy - and not likely to be found in modern repositories. + and not likely to be found in modern repositories. This + directory is ignored if $GIT_COMMON_DIR is set and + "$GIT_COMMON_DIR/remotes" will be used instead. logs:: - Records of changes made to refs are stored in this - directory. See linkgit:git-update-ref[1] - for more information. + Records of changes made to refs are stored in this directory. + See linkgit:git-update-ref[1] for more information. This + directory is ignored if $GIT_COMMON_DIR is set and + "$GIT_COMMON_DIR/logs" will be used instead. logs/refs/heads/`name`:: Records all changes made to the branch tip named `name`. @@ -209,11 +236,46 @@ logs/refs/tags/`name`:: shallow:: This is similar to `info/grafts` but is internally used and maintained by shallow clone mechanism. See `--depth` - option to linkgit:git-clone[1] and linkgit:git-fetch[1]. + option to linkgit:git-clone[1] and linkgit:git-fetch[1]. This + file is ignored if $GIT_COMMON_DIR is set and + "$GIT_COMMON_DIR/shallow" will be used instead. + +commondir:: + If this file exists, $GIT_COMMON_DIR (see linkgit:git[1]) will + be set to the path specified in this file if it is not + explicitly set. If the specified path is relative, it is + relative to $GIT_DIR. The repository with commondir is + incomplete without the repository pointed by "commondir". modules:: Contains the git-repositories of the submodules. +worktrees:: + Contains administrative data for linked + working trees. Each subdirectory contains the working tree-related + part of a linked working tree. This directory is ignored if + $GIT_COMMON_DIR is set, in which case + "$GIT_COMMON_DIR/worktrees" will be used instead. + +worktrees/<id>/gitdir:: + A text file containing the absolute path back to the .git file + that points to here. This is used to check if the linked + repository has been manually removed and there is no need to + keep this directory any more. The mtime of this file should be + updated every time the linked repository is accessed. + +worktrees/<id>/locked:: + If this file exists, the linked working tree may be on a + portable device and not available. The presence of this file + prevents `worktrees/<id>` from being pruned either automatically + or manually by `git worktree prune`. The file may contain a string + explaining why the repository is locked. + +worktrees/<id>/link:: + If this file exists, it is a hard link to the linked .git + file. It is used to detect if the linked repository is + manually removed. + SEE ALSO -------- linkgit:git-init[1], diff --git a/Documentation/gittutorial-2.txt b/Documentation/gittutorial-2.txt index 3109ea8aad..30d2119565 100644 --- a/Documentation/gittutorial-2.txt +++ b/Documentation/gittutorial-2.txt @@ -368,17 +368,18 @@ situation: ------------------------------------------------ $ git status -# On branch master -# Changes to be committed: -# (use "git reset HEAD <file>..." to unstage) -# -# new file: closing.txt -# -# Changes not staged for commit: -# (use "git add <file>..." to update what will be committed) -# -# modified: file.txt -# +On branch master +Changes to be committed: + (use "git reset HEAD <file>..." to unstage) + + new file: closing.txt + +Changes not staged for commit: + (use "git add <file>..." to update what will be committed) + (use "git checkout -- <file>..." to discard changes in working directory) + + modified: file.txt + ------------------------------------------------ Since the current state of closing.txt is cached in the index file, @@ -403,7 +404,7 @@ What next? At this point you should know everything necessary to read the man pages for any of the git commands; one good place to start would be -with the commands mentioned in link:everyday.html[Everyday Git]. You +with the commands mentioned in linkgit:giteveryday[7]. You should be able to find any unknown jargon in linkgit:gitglossary[7]. The link:user-manual.html[Git User's Manual] provides a more @@ -427,7 +428,7 @@ linkgit:gitcvs-migration[7], linkgit:gitcore-tutorial[7], linkgit:gitglossary[7], linkgit:git-help[1], -link:everyday.html[Everyday Git], +linkgit:giteveryday[7], link:user-manual.html[The Git User's Manual] GIT diff --git a/Documentation/gittutorial.txt b/Documentation/gittutorial.txt index 8262196318..b00c67df46 100644 --- a/Documentation/gittutorial.txt +++ b/Documentation/gittutorial.txt @@ -3,7 +3,7 @@ gittutorial(7) NAME ---- -gittutorial - A tutorial introduction to Git (for version 1.5.1 or newer) +gittutorial - A tutorial introduction to Git SYNOPSIS -------- @@ -107,14 +107,15 @@ summary of the situation with 'git status': ------------------------------------------------ $ git status -# On branch master -# Changes to be committed: -# (use "git reset HEAD <file>..." to unstage) -# -# modified: file1 -# modified: file2 -# modified: file3 -# +On branch master +Changes to be committed: +Your branch is up-to-date with 'origin/master'. + (use "git reset HEAD <file>..." to unstage) + + modified: file1 + modified: file2 + modified: file3 + ------------------------------------------------ If you need to make any further adjustments, do so now, and then add any @@ -656,7 +657,7 @@ digressions that may be interesting at this point are: * linkgit:gitworkflows[7]: Gives an overview of recommended workflows. - * link:everyday.html[Everyday Git with 20 Commands Or So] + * linkgit:giteveryday[7]: Everyday Git with 20 Commands Or So. * linkgit:gitcvs-migration[7]: Git for CVS users. @@ -668,7 +669,7 @@ linkgit:gitcore-tutorial[7], linkgit:gitglossary[7], linkgit:git-help[1], linkgit:gitworkflows[7], -link:everyday.html[Everyday Git], +linkgit:giteveryday[7], link:user-manual.html[The Git User's Manual] GIT diff --git a/Documentation/gitweb.conf.txt b/Documentation/gitweb.conf.txt index 305db633cc..8a42270074 100644 --- a/Documentation/gitweb.conf.txt +++ b/Documentation/gitweb.conf.txt @@ -482,12 +482,12 @@ project config. Per-repository configuration takes precedence over value composed from `@git_base_url_list` elements and project name. + You can setup one single value (single entry/item in this list) at build -time by setting the `GITWEB_BASE_URL` built-time configuration variable. +time by setting the `GITWEB_BASE_URL` build-time configuration variable. By default it is set to (), i.e. an empty list. This means that gitweb would not try to create project URL (to fetch) from project name. $projects_list_group_categories:: - Whether to enables the grouping of projects by category on the project + Whether to enable the grouping of projects by category on the project list page. The category of a project is determined by the `$GIT_DIR/category` file or the `gitweb.category` variable in each repository's configuration. Disabled by default (set to 0). @@ -630,13 +630,13 @@ need to set this element to empty list i.e. `[]`. override:: If this field has a true value then the given feature is - overriddable, which means that it can be configured + overridable, which means that it can be configured (or enabled/disabled) on a per-repository basis. + Usually given "<feature>" is configurable via the `gitweb.<feature>` config variable in the per-repository Git configuration file. + -*Note* that no feature is overriddable by default. +*Note* that no feature is overridable by default. sub:: Internal detail of implementation. What is important is that @@ -706,7 +706,7 @@ show-sizes:: I/O. Enabled by default. + This feature can be configured on a per-repository basis via -repository's `gitweb.showsizes` configuration variable (boolean). +repository's `gitweb.showSizes` configuration variable (boolean). patches:: Enable and configure "patches" view, which displays list of commits in email @@ -822,18 +822,18 @@ timed:: Project specific override is not supported. javascript-timezone:: - Enable and configure the ability to change a common timezone for dates + Enable and configure the ability to change a common time zone for dates in gitweb output via JavaScript. Dates in gitweb output include authordate and committerdate in "commit", "commitdiff" and "log" views, and taggerdate in "tag" view. Enabled by default. + -The value is a list of three values: a default timezone (for if the client -hasn't selected some other timezone and saved it in a cookie), a name of cookie -where to store selected timezone, and a CSS class used to mark up +The value is a list of three values: a default time zone (for if the client +hasn't selected some other time zone and saved it in a cookie), a name of cookie +where to store selected time zone, and a CSS class used to mark up dates for manipulation. If you want to turn this feature off, set "default" to empty list: `[]`. + -Typical gitweb config files will only change starting (default) timezone, +Typical gitweb config files will only change starting (default) time zone, and leave other elements at their default values: + --------------------------------------------------------------------------- @@ -843,12 +843,49 @@ $feature{'javascript-timezone'}{'default'}[0] = "utc"; The example configuration presented here is guaranteed to be backwards and forward compatible. + -Timezone values can be "local" (for local timezone that browser uses), "utc" +Time zone values can be "local" (for local time zone that browser uses), "utc" (what gitweb uses when JavaScript or this feature is disabled), or numerical -timezones in the form of "+/-HHMM", such as "+0200". +time zones in the form of "+/-HHMM", such as "+0200". + Project specific override is not supported. +extra-branch-refs:: + List of additional directories under "refs" which are going to + be used as branch refs. For example if you have a gerrit setup + where all branches under refs/heads/ are official, + push-after-review ones and branches under refs/sandbox/, + refs/wip and refs/other are user ones where permissions are + much wider, then you might want to set this variable as + follows: ++ +-------------------------------------------------------------------------------- +$feature{'extra-branch-refs'}{'default'} = + ['sandbox', 'wip', 'other']; +-------------------------------------------------------------------------------- ++ +This feature can be configured on per-repository basis after setting +$feature{'extra-branch-refs'}{'override'} to true, via repository's +`gitweb.extraBranchRefs` configuration variable, which contains a +space separated list of refs. An example: ++ +-------------------------------------------------------------------------------- +[gitweb] + extraBranchRefs = sandbox wip other +-------------------------------------------------------------------------------- ++ +The gitweb.extraBranchRefs is actually a multi-valued configuration +variable, so following example is also correct and the result is the +same as of the snippet above: ++ +-------------------------------------------------------------------------------- +[gitweb] + extraBranchRefs = sandbox + extraBranchRefs = wip other +-------------------------------------------------------------------------------- ++ +It is an error to specify a ref that does not pass "git check-ref-format" +scrutiny. Duplicated values are filtered. + EXAMPLES -------- @@ -867,7 +904,7 @@ the following in your GITWEB_CONFIG file: $feature{'snapshot'}{'override'} = 1; If you allow overriding for the snapshot feature, you can specify which -snapshot formats are globally disabled. You can also add any command line +snapshot formats are globally disabled. You can also add any command-line options you want (such as setting the compression level). For instance, you can disable Zip compressed snapshots and set *gzip*(1) to run at level 6 by adding the following lines to your gitweb configuration file: diff --git a/Documentation/gitweb.txt b/Documentation/gitweb.txt index cca14b8cc3..cd9c8951b2 100644 --- a/Documentation/gitweb.txt +++ b/Documentation/gitweb.txt @@ -84,7 +84,7 @@ separator (rules for Perl's "`split(" ", $line)`"). * Fields use modified URI encoding, defined in RFC 3986, section 2.1 (Percent-Encoding), or rather "Query string encoding" (see -link:http://en.wikipedia.org/wiki/Query_string#URL_encoding[]), the difference +http://en.wikipedia.org/wiki/Query_string#URL_encoding[]), the difference being that SP (" ") can be encoded as "{plus}" (and therefore "{plus}" has to be also percent-encoded). + diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt index dba5062b37..8c6478b2f2 100644 --- a/Documentation/glossary-content.txt +++ b/Documentation/glossary-content.txt @@ -1,7 +1,7 @@ [[def_alternate_object_database]]alternate object database:: Via the alternates mechanism, a <<def_repository,repository>> can inherit part of its <<def_object_database,object database>> - from another object database, which is called "alternate". + from another object database, which is called an "alternate". [[def_bare_repository]]bare repository:: A bare repository is normally an appropriately @@ -82,6 +82,18 @@ to point at the new commit. to the top <<def_directory,directory>> of the stored revision. +[[def_commit-ish]]commit-ish (also committish):: + A <<def_commit_object,commit object>> or an + <<def_object,object>> that can be recursively dereferenced to + a commit object. + The following are all commit-ishes: + a commit object, + a <<def_tag_object,tag object>> that points to a commit + object, + a tag object that points to a tag object that points to a + commit object, + etc. + [[def_core_git]]core Git:: Fundamental data structures and utilities of Git. Exposes only limited source code management tools. @@ -164,6 +176,10 @@ current branch integrates with) obviously do not work, as there is no you can make Git pretend the set of <<def_parent,parents>> a <<def_commit,commit>> has is different from what was recorded when the commit was created. Configured via the `.git/info/grafts` file. ++ +Note that the grafts mechanism is outdated and can lead to problems +transferring objects between repositories; see linkgit:git-replace[1] +for a more flexible and robust system to do the same thing. [[def_hash]]hash:: In Git's context, synonym for <<def_object_name,object name>>. @@ -311,24 +327,68 @@ including Documentation/chapter_1/figure_1.jpg. A pathspec that begins with a colon `:` has special meaning. In the short form, the leading colon `:` is followed by zero or more "magic signature" letters (which optionally is terminated by another colon `:`), -and the remainder is the pattern to match against the path. The optional -colon that terminates the "magic signature" can be omitted if the pattern -begins with a character that cannot be a "magic signature" and is not a -colon. +and the remainder is the pattern to match against the path. +The "magic signature" consists of ASCII symbols that are neither +alphanumeric, glob, regex special characters nor colon. +The optional colon that terminates the "magic signature" can be +omitted if the pattern begins with a character that does not belong to +"magic signature" symbol set and is not a colon. + In the long form, the leading colon `:` is followed by a open parenthesis `(`, a comma-separated list of zero or more "magic words", and a close parentheses `)`, and the remainder is the pattern to match against the path. + -The "magic signature" consists of an ASCII symbol that is not -alphanumeric. Currently only the slash `/` is recognized as a -"magic signature": it makes the pattern match from the root of -the working tree, even when you are running the command from -inside a subdirectory. -+ A pathspec with only a colon means "there is no pathspec". This form should not be combined with other pathspec. ++ +-- +top;; + The magic word `top` (magic signature: `/`) makes the pattern + match from the root of the working tree, even when you are + running the command from inside a subdirectory. + +literal;; + Wildcards in the pattern such as `*` or `?` are treated + as literal characters. + +icase;; + Case insensitive match. + +glob;; + Git treats the pattern as a shell glob suitable for + consumption by fnmatch(3) with the FNM_PATHNAME flag: + wildcards in the pattern will not match a / in the pathname. + For example, "Documentation/{asterisk}.html" matches + "Documentation/git.html" but not "Documentation/ppc/ppc.html" + or "tools/perf/Documentation/perf.html". ++ +Two consecutive asterisks ("`**`") in patterns matched against +full pathname may have special meaning: + + - A leading "`**`" followed by a slash means match in all + directories. For example, "`**/foo`" matches file or directory + "`foo`" anywhere, the same as pattern "`foo`". "`**/foo/bar`" + matches file or directory "`bar`" anywhere that is directly + under directory "`foo`". + + - A trailing "`/**`" matches everything inside. For example, + "`abc/**`" matches all files inside directory "abc", relative + to the location of the `.gitignore` file, with infinite depth. + + - A slash followed by two consecutive asterisks then a slash + matches zero or more directories. For example, "`a/**/b`" + matches "`a/b`", "`a/x/b`", "`a/x/y/b`" and so on. + + - Other consecutive asterisks are considered invalid. ++ +Glob magic is incompatible with literal magic. + +exclude;; + After a path matches any non-exclude pathspec, it will be run + through all exclude pathspec (magic signature: `!`). If it + matches, the path is ignored. +-- [[def_parent]]parent:: A <<def_commit_object,commit object>> contains a (possibly empty) list @@ -351,6 +411,27 @@ should not be combined with other pathspec. core Git. Porcelains expose more of a <<def_SCM,SCM>> interface than the <<def_plumbing,plumbing>>. +[[def_per_worktree_ref]]per-worktree ref:: + Refs that are per-<<def_working_tree,worktree>>, rather than + global. This is presently only <<def_HEAD,HEAD>>, but might + later include other unusual refs. + +[[def_pseudoref]]pseudoref:: + Pseudorefs are a class of files under `$GIT_DIR` which behave + like refs for the purposes of rev-parse, but which are treated + specially by git. Pseudorefs both have names that are all-caps, + and always start with a line consisting of a + <<def_SHA1,SHA-1>> followed by whitespace. So, HEAD is not a + pseudoref, because it is sometimes a symbolic ref. They might + optionally contain some additional data. `MERGE_HEAD` and + `CHERRY_PICK_HEAD` are examples. Unlike + <<def_per_worktree_ref,per-worktree refs>>, these files cannot + be symbolic refs, and never have reflogs. They also cannot be + updated through the normal ref update machinery. Instead, + they are updated by directly writing to the files. However, + they can be read as if they were refs, so `git rev-parse + MERGE_HEAD` will work. + [[def_pull]]pull:: Pulling a <<def_branch,branch>> means to <<def_fetch,fetch>> it and <<def_merge,merge>> it. See also linkgit:git-pull[1]. @@ -383,10 +464,20 @@ should not be combined with other pathspec. to the result. [[def_ref]]ref:: - A 40-byte hex representation of a <<def_SHA1,SHA-1>> or a name that - denotes a particular <<def_object,object>>. They may be stored in - a file under `$GIT_DIR/refs/` directory, or - in the `$GIT_DIR/packed-refs` file. + A name that begins with `refs/` (e.g. `refs/heads/master`) + that points to an <<def_object_name,object name>> or another + ref (the latter is called a <<def_symref,symbolic ref>>). + For convenience, a ref can sometimes be abbreviated when used + as an argument to a Git command; see linkgit:gitrevisions[7] + for details. + Refs are stored in the <<def_repository,repository>>. ++ +The ref namespace is hierarchical. +Different subhierarchies are used for different purposes (e.g. the +`refs/heads/` hierarchy is used to represent local branches). ++ +There are a few special-purpose refs that do not begin with `refs/`. +The most notable example is `HEAD`. [[def_reflog]]reflog:: A reflog shows the local "history" of a ref. In other words, @@ -399,6 +490,11 @@ should not be combined with other pathspec. <<def_push,push>> to describe the mapping between remote <<def_ref,ref>> and local ref. +[[def_remote]]remote repository:: + A <<def_repository,repository>> which is used to track the same + project but resides somewhere else. To communicate with remotes, + see <<def_fetch,fetch>> or <<def_push,push>>. + [[def_remote_tracking_branch]]remote-tracking branch:: A <<def_ref,ref>> that is used to follow changes from another <<def_repository,repository>>. It typically looks like @@ -445,6 +541,17 @@ should not be combined with other pathspec. is created by giving the `--depth` option to linkgit:git-clone[1], and its history can be later deepened with linkgit:git-fetch[1]. +[[def_submodule]]submodule:: + A <<def_repository,repository>> that holds the history of a + separate project inside another repository (the latter of + which is called <<def_superproject, superproject>>). + +[[def_superproject]]superproject:: + A <<def_repository,repository>> that references repositories + of other projects in its working tree as <<def_submodule,submodules>>. + The superproject knows about the names of (but does not hold + copies of) commit objects of the contained submodules. + [[def_symref]]symref:: Symbolic reference: instead of containing the <<def_SHA1,SHA-1>> id itself, it is of the format 'ref: refs/some/thing' and when @@ -486,10 +593,19 @@ should not be combined with other pathspec. with refs to the associated blob and/or tree objects. A <<def_tree,tree>> is equivalent to a <<def_directory,directory>>. -[[def_tree-ish]]tree-ish:: - A <<def_ref,ref>> pointing to either a <<def_commit_object,commit - object>>, a <<def_tree_object,tree object>>, or a <<def_tag_object,tag - object>> pointing to a tag or commit or tree object. +[[def_tree-ish]]tree-ish (also treeish):: + A <<def_tree_object,tree object>> or an <<def_object,object>> + that can be recursively dereferenced to a tree object. + Dereferencing a <<def_commit_object,commit object>> yields the + tree object corresponding to the <<def_revision,revision>>'s + top <<def_directory,directory>>. + The following are all tree-ishes: + a <<def_commit-ish,commit-ish>>, + a tree object, + a <<def_tag_object,tag object>> that points to a tree object, + a tag object that points to a tag object that points to a tree + object, + etc. [[def_unmerged_index]]unmerged index:: An <<def_index,index>> which contains unmerged diff --git a/Documentation/howto-index.sh b/Documentation/howto-index.sh index a2340864b5..167b363668 100755 --- a/Documentation/howto-index.sh +++ b/Documentation/howto-index.sh @@ -11,8 +11,8 @@ EOF for txt do - title=`expr "$txt" : '.*/\(.*\)\.txt$'` - from=`sed -ne ' + title=$(expr "$txt" : '.*/\(.*\)\.txt$') + from=$(sed -ne ' /^$/q /^From:[ ]/{ s/// @@ -21,9 +21,9 @@ do s/^/by / p } - ' "$txt"` + ' "$txt") - abstract=`sed -ne ' + abstract=$(sed -ne ' /^Abstract:[ ]/{ s/^[^ ]*// x @@ -39,11 +39,11 @@ do x p q - }' "$txt"` + }' "$txt") if grep 'Content-type: text/asciidoc' >/dev/null $txt then - file=`expr "$txt" : '\(.*\)\.txt$'`.html + file=$(expr "$txt" : '\(.*\)\.txt$').html else file="$txt" fi diff --git a/Documentation/howto/keep-canonical-history-correct.txt b/Documentation/howto/keep-canonical-history-correct.txt new file mode 100644 index 0000000000..35d48ef714 --- /dev/null +++ b/Documentation/howto/keep-canonical-history-correct.txt @@ -0,0 +1,216 @@ +From: Junio C Hamano <gitster@pobox.com> +Date: Wed, 07 May 2014 13:15:39 -0700 +Subject: Beginner question on "Pull is mostly evil" +Abstract: This how-to explains a method for keeping a + project's history correct when using git pull. +Content-type: text/asciidoc + +Keep authoritative canonical history correct with git pull +========================================================== + +Sometimes a new project integrator will end up with project history +that appears to be "backwards" from what other project developers +expect. This howto presents a suggested integration workflow for +maintaining a central repository. + +Suppose that that central repository has this history: + +------------ + ---o---o---A +------------ + +which ends at commit `A` (time flows from left to right and each node +in the graph is a commit, lines between them indicating parent-child +relationship). + +Then you clone it and work on your own commits, which leads you to +have this history in *your* repository: + +------------ + ---o---o---A---B---C +------------ + +Imagine your coworker did the same and built on top of `A` in *his* +repository in the meantime, and then pushed it to the +central repository: + +------------ + ---o---o---A---X---Y---Z +------------ + +Now, if you `git push` at this point, because your history that leads +to `C` lacks `X`, `Y` and `Z`, it will fail. You need to somehow make +the tip of your history a descendant of `Z`. + +One suggested way to solve the problem is "fetch and then merge", aka +`git pull`. When you fetch, your repository will have a history like +this: + +------------ + ---o---o---A---B---C + \ + X---Y---Z +------------ + +Once you run merge after that, while still on *your* branch, i.e. `C`, +you will create a merge `M` and make the history look like this: + +------------ + ---o---o---A---B---C---M + \ / + X---Y---Z +------------ + +`M` is a descendant of `Z`, so you can push to update the central +repository. Such a merge `M` does not lose any commit in both +histories, so in that sense it may not be wrong, but when people want +to talk about "the authoritative canonical history that is shared +among the project participants", i.e. "the trunk", they often view +it as "commits you see by following the first-parent chain", and use +this command to view it: + +------------ + $ git log --first-parent +------------ + +For all other people who observed the central repository after your +coworker pushed `Z` but before you pushed `M`, the commit on the trunk +used to be `o-o-A-X-Y-Z`. But because you made `M` while you were on +`C`, `M`'s first parent is `C`, so by pushing `M` to advance the +central repository, you made `X-Y-Z` a side branch, not on the trunk. + +You would rather want to have a history of this shape: + +------------ + ---o---o---A---X---Y---Z---M' + \ / + B-----------C +------------ + +so that in the first-parent chain, it is clear that the project first +did `X` and then `Y` and then `Z` and merged a change that consists of +two commits `B` and `C` that achieves a single goal. You may have +worked on fixing the bug #12345 with these two patches, and the merge +`M'` with swapped parents can say in its log message "Merge +fix-bug-12345". Having a way to tell `git pull` to create a merge +but record the parents in reverse order may be a way to do so. + +Note that I said "achieves a single goal" above, because this is +important. "Swapping the merge order" only covers a special case +where the project does not care too much about having unrelated +things done on a single merge but cares a lot about first-parent +chain. + +There are multiple schools of thought about the "trunk" management. + + 1. Some projects want to keep a completely linear history without any + merges. Obviously, swapping the merge order would not match their + taste. You would need to flatten your history on top of the + updated upstream to result in a history of this shape instead: ++ +------------ + ---o---o---A---X---Y---Z---B---C +------------ ++ +with `git pull --rebase` or something. + + 2. Some projects tolerate merges in their history, but do not worry + too much about the first-parent order, and allow fast-forward + merges. To them, swapping the merge order does not hurt, but + it is unnecessary. + + 3. Some projects want each commit on the "trunk" to do one single + thing. The output of `git log --first-parent` in such a project + would show either a merge of a side branch that completes a single + theme, or a single commit that completes a single theme by itself. + If your two commits `B` and `C` (or they may even be two groups of + commits) were solving two independent issues, then the merge `M'` + we made in the earlier example by swapping the merge order is + still not up to the project standard. It merges two unrelated + efforts `B` and `C` at the same time. + +For projects in the last category (Git itself is one of them), +individual developers would want to prepare a history more like +this: + +------------ + C0--C1--C2 topic-c + / + ---o---o---A master + \ + B0--B1--B2 topic-b +------------ + +That is, keeping separate topics on separate branches, perhaps like +so: + +------------ + $ git clone $URL work && cd work + $ git checkout -b topic-b master + $ ... work to create B0, B1 and B2 to complete one theme + $ git checkout -b topic-c master + $ ... same for the theme of topic-c +------------ + +And then + +------------ + $ git checkout master + $ git pull --ff-only +------------ + +would grab `X`, `Y` and `Z` from the upstream and advance your master +branch: + +------------ + C0--C1--C2 topic-c + / + ---o---o---A---X---Y---Z master + \ + B0--B1--B2 topic-b +------------ + +And then you would merge these two branches separately: + +------------ + $ git merge topic-b + $ git merge topic-c +------------ + +to result in + +------------ + C0--C1---------C2 + / \ + ---o---o---A---X---Y---Z---M---N + \ / + B0--B1-----B2 +------------ + +and push it back to the central repository. + +It is very much possible that while you are merging topic-b and +topic-c, somebody again advanced the history in the central repository +to put `W` on top of `Z`, and make your `git push` fail. + +In such a case, you would rewind to discard `M` and `N`, update the +tip of your 'master' again and redo the two merges: + +------------ + $ git reset --hard origin/master + $ git pull --ff-only + $ git merge topic-b + $ git merge topic-c +------------ + +The procedure will result in a history that looks like this: + +------------ + C0--C1--------------C2 + / \ + ---o---o---A---X---Y---Z---W---M'--N' + \ / + B0--B1---------B2 +------------ + +See also http://git-blame.blogspot.com/2013/09/fun-with-first-parent-history.html diff --git a/Documentation/howto/maintain-git.txt b/Documentation/howto/maintain-git.txt index 33ae69c11f..ca4378740c 100644 --- a/Documentation/howto/maintain-git.txt +++ b/Documentation/howto/maintain-git.txt @@ -39,26 +39,26 @@ The policy on Integration is informally mentioned in "A Note from the maintainer" message, which is periodically posted to this mailing list after each feature release is made. - - Feature releases are numbered as vX.Y.Z and are meant to + - Feature releases are numbered as vX.Y.0 and are meant to contain bugfixes and enhancements in any area, including functionality, performance and usability, without regression. - One release cycle for a feature release is expected to last for eight to ten weeks. - - Maintenance releases are numbered as vX.Y.Z.W and are meant - to contain only bugfixes for the corresponding vX.Y.Z feature - release and earlier maintenance releases vX.Y.Z.V (V < W). + - Maintenance releases are numbered as vX.Y.Z and are meant + to contain only bugfixes for the corresponding vX.Y.0 feature + release and earlier maintenance releases vX.Y.W (W < Z). - 'master' branch is used to prepare for the next feature release. In other words, at some point, the tip of 'master' - branch is tagged with vX.Y.Z. + branch is tagged with vX.Y.0. - 'maint' branch is used to prepare for the next maintenance - release. After the feature release vX.Y.Z is made, the tip + release. After the feature release vX.Y.0 is made, the tip of 'maint' branch is set to that release, and bugfixes will accumulate on the branch, and at some point, the tip of the - branch is tagged with vX.Y.Z.1, vX.Y.Z.2, and so on. + branch is tagged with vX.Y.1, vX.Y.2, and so on. - 'next' branch is used to publish changes (both enhancements and fixes) that (1) have worthwhile goal, (2) are in a fairly @@ -86,6 +86,10 @@ this mailing list after each feature release is made. users are encouraged to test it so that regressions and bugs are found before new topics are merged to 'master'. +Note that before v1.9.0 release, the version numbers used to be +structured slightly differently. vX.Y.Z were feature releases while +vX.Y.Z.W were maintenance releases for vX.Y.Z. + A Typical Git Day ----------------- diff --git a/Documentation/howto/new-command.txt b/Documentation/howto/new-command.txt index d7de5a3e9e..6d772bd927 100644 --- a/Documentation/howto/new-command.txt +++ b/Documentation/howto/new-command.txt @@ -95,7 +95,9 @@ your language, document it in the INSTALL file. that categorizes commands by type, so they can be listed in appropriate subsections in the documentation's summary command list. Add an entry for yours. To understand the categories, look at git-commands.txt -in the main directory. +in the main directory. If the new command is part of the typical Git +workflow and you believe it common enough to be mentioned in 'git help', +map this command to a common group in the column [common]. 7. Give the maintainer one paragraph to include in the RelNotes file to describe the new feature; a good place to do so is in the cover diff --git a/Documentation/howto/rebase-from-internal-branch.txt b/Documentation/howto/rebase-from-internal-branch.txt index 19ab604f1f..02cb5f758d 100644 --- a/Documentation/howto/rebase-from-internal-branch.txt +++ b/Documentation/howto/rebase-from-internal-branch.txt @@ -139,7 +139,7 @@ You fetch from upstream, but not merge. $ git fetch upstream This leaves the updated upstream head in .git/FETCH_HEAD but -does not touch your .git/HEAD nor .git/refs/heads/master. +does not touch your .git/HEAD or .git/refs/heads/master. You run "git rebase" now. $ git rebase FETCH_HEAD master diff --git a/Documentation/howto/recover-corrupted-object-harder.txt b/Documentation/howto/recover-corrupted-object-harder.txt new file mode 100644 index 0000000000..9c4cd0915f --- /dev/null +++ b/Documentation/howto/recover-corrupted-object-harder.txt @@ -0,0 +1,479 @@ +Date: Wed, 16 Oct 2013 04:34:01 -0400 +From: Jeff King <peff@peff.net> +Subject: pack corruption post-mortem +Abstract: Recovering a corrupted object when no good copy is available. +Content-type: text/asciidoc + +How to recover an object from scratch +===================================== + +I was recently presented with a repository with a corrupted packfile, +and was asked if the data was recoverable. This post-mortem describes +the steps I took to investigate and fix the problem. I thought others +might find the process interesting, and it might help somebody in the +same situation. + +******************************** +Note: In this case, no good copy of the repository was available. For +the much easier case where you can get the corrupted object from +elsewhere, see link:recover-corrupted-blob-object.html[this howto]. +******************************** + +I started with an fsck, which found a problem with exactly one object +(I've used $pack and $obj below to keep the output readable, and also +because I'll refer to them later): + +----------- + $ git fsck + error: $pack SHA1 checksum mismatch + error: index CRC mismatch for object $obj from $pack at offset 51653873 + error: inflate: data stream error (incorrect data check) + error: cannot unpack $obj from $pack at offset 51653873 +----------- + +The pack checksum failing means a byte is munged somewhere, and it is +presumably in the object mentioned (since both the index checksum and +zlib were failing). + +Reading the zlib source code, I found that "incorrect data check" means +that the adler-32 checksum at the end of the zlib data did not match the +inflated data. So stepping the data through zlib would not help, as it +did not fail until the very end, when we realize the CRC does not match. +The problematic bytes could be anywhere in the object data. + +The first thing I did was pull the broken data out of the packfile. I +needed to know how big the object was, which I found out with: + +------------ + $ git show-index <$idx | cut -d' ' -f1 | sort -n | grep -A1 51653873 + 51653873 + 51664736 +------------ + +Show-index gives us the list of objects and their offsets. We throw away +everything but the offsets, and then sort them so that our interesting +offset (which we got from the fsck output above) is followed immediately +by the offset of the next object. Now we know that the object data is +10863 bytes long, and we can grab it with: + +------------ + dd if=$pack of=object bs=1 skip=51653873 count=10863 +------------ + +I inspected a hexdump of the data, looking for any obvious bogosity +(e.g., a 4K run of zeroes would be a good sign of filesystem +corruption). But everything looked pretty reasonable. + +Note that the "object" file isn't fit for feeding straight to zlib; it +has the git packed object header, which is variable-length. We want to +strip that off so we can start playing with the zlib data directly. You +can either work your way through it manually (the format is described in +link:../technical/pack-format.html[Documentation/technical/pack-format.txt]), +or you can walk through it in a debugger. I did the latter, creating a +valid pack like: + +------------ + # pack magic and version + printf 'PACK\0\0\0\2' >tmp.pack + # pack has one object + printf '\0\0\0\1' >>tmp.pack + # now add our object data + cat object >>tmp.pack + # and then append the pack trailer + /path/to/git.git/test-sha1 -b <tmp.pack >trailer + cat trailer >>tmp.pack +------------ + +and then running "git index-pack tmp.pack" in the debugger (stop at +unpack_raw_entry). Doing this, I found that there were 3 bytes of header +(and the header itself had a sane type and size). So I stripped those +off with: + +------------ + dd if=object of=zlib bs=1 skip=3 +------------ + +I ran the result through zlib's inflate using a custom C program. And +while it did report the error, I did get the right number of output +bytes (i.e., it matched git's size header that we decoded above). But +feeding the result back to "git hash-object" didn't produce the same +sha1. So there were some wrong bytes, but I didn't know which. The file +happened to be C source code, so I hoped I could notice something +obviously wrong with it, but I didn't. I even got it to compile! + +I also tried comparing it to other versions of the same path in the +repository, hoping that there would be some part of the diff that didn't +make sense. Unfortunately, this happened to be the only revision of this +particular file in the repository, so I had nothing to compare against. + +So I took a different approach. Working under the guess that the +corruption was limited to a single byte, I wrote a program to munge each +byte individually, and try inflating the result. Since the object was +only 10K compressed, that worked out to about 2.5M attempts, which took +a few minutes. + +The program I used is here: + +---------------------------------------------- +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <signal.h> +#include <zlib.h> + +static int try_zlib(unsigned char *buf, int len) +{ + /* make this absurdly large so we don't have to loop */ + static unsigned char out[1024*1024]; + z_stream z; + int ret; + + memset(&z, 0, sizeof(z)); + inflateInit(&z); + + z.next_in = buf; + z.avail_in = len; + z.next_out = out; + z.avail_out = sizeof(out); + + ret = inflate(&z, 0); + inflateEnd(&z); + return ret >= 0; +} + +/* eye candy */ +static int counter = 0; +static void progress(int sig) +{ + fprintf(stderr, "\r%d", counter); + alarm(1); +} + +int main(void) +{ + /* oversized so we can read the whole buffer in */ + unsigned char buf[1024*1024]; + int len; + unsigned i, j; + + signal(SIGALRM, progress); + alarm(1); + + len = read(0, buf, sizeof(buf)); + for (i = 0; i < len; i++) { + unsigned char c = buf[i]; + for (j = 0; j <= 0xff; j++) { + buf[i] = j; + + counter++; + if (try_zlib(buf, len)) + printf("i=%d, j=%x\n", i, j); + } + buf[i] = c; + } + + alarm(0); + fprintf(stderr, "\n"); + return 0; +} +---------------------------------------------- + +I compiled and ran with: + +------- + gcc -Wall -Werror -O3 munge.c -o munge -lz + ./munge <zlib +------- + + +There were a few false positives early on (if you write "no data" in the +zlib header, zlib thinks it's just fine :) ). But I got a hit about +halfway through: + +------- + i=5642, j=c7 +------- + +I let it run to completion, and got a few more hits at the end (where it +was munging the CRC to match our broken data). So there was a good +chance this middle hit was the source of the problem. + +I confirmed by tweaking the byte in a hex editor, zlib inflating the +result (no errors!), and then piping the output into "git hash-object", +which reported the sha1 of the broken object. Success! + +I fixed the packfile itself with: + +------- + chmod +w $pack + printf '\xc7' | dd of=$pack bs=1 seek=51659518 conv=notrunc + chmod -w $pack +------- + +The `\xc7` comes from the replacement byte our "munge" program found. +The offset 51659518 is derived by taking the original object offset +(51653873), adding the replacement offset found by "munge" (5642), and +then adding back in the 3 bytes of git header we stripped. + +After that, "git fsck" ran clean. + +As for the corruption itself, I was lucky that it was indeed a single +byte. In fact, it turned out to be a single bit. The byte 0xc7 was +corrupted to 0xc5. So presumably it was caused by faulty hardware, or a +cosmic ray. + +And the aborted attempt to look at the inflated output to see what was +wrong? I could have looked forever and never found it. Here's the diff +between what the corrupted data inflates to, versus the real data: + +-------------- + - cp = strtok (arg, "+"); + + cp = strtok (arg, "."); +-------------- + +It tweaked one byte and still ended up as valid, readable C that just +happened to do something totally different! One takeaway is that on a +less unlucky day, looking at the zlib output might have actually been +helpful, as most random changes would actually break the C code. + +But more importantly, git's hashing and checksumming noticed a problem +that easily could have gone undetected in another system. The result +still compiled, but would have caused an interesting bug (that would +have been blamed on some random commit). + + +The adventure continues... +-------------------------- + +I ended up doing this again! Same entity, new hardware. The assumption +at this point is that the old disk corrupted the packfile, and then the +corruption was migrated to the new hardware (because it was done by +rsync or similar, and no fsck was done at the time of migration). + +This time, the affected blob was over 20 megabytes, which was far too +large to do a brute-force on. I followed the instructions above to +create the `zlib` file. I then used the `inflate` program below to pull +the corrupted data from that. Examining that output gave me a hint about +where in the file the corruption was. But now I was working with the +file itself, not the zlib contents. So knowing the sha1 of the object +and the approximate area of the corruption, I used the `sha1-munge` +program below to brute-force the correct byte. + +Here's the inflate program (it's essentially `gunzip` but without the +`.gz` header processing): + +-------------------------- +#include <stdio.h> +#include <string.h> +#include <zlib.h> +#include <stdlib.h> + +int main(int argc, char **argv) +{ + /* + * oversized so we can read the whole buffer in; + * this could actually be switched to streaming + * to avoid any memory limitations + */ + static unsigned char buf[25 * 1024 * 1024]; + static unsigned char out[25 * 1024 * 1024]; + int len; + z_stream z; + int ret; + + len = read(0, buf, sizeof(buf)); + memset(&z, 0, sizeof(z)); + inflateInit(&z); + + z.next_in = buf; + z.avail_in = len; + z.next_out = out; + z.avail_out = sizeof(out); + + ret = inflate(&z, 0); + if (ret != Z_OK && ret != Z_STREAM_END) + fprintf(stderr, "initial inflate failed (%d)\n", ret); + + fprintf(stderr, "outputting %lu bytes", z.total_out); + fwrite(out, 1, z.total_out, stdout); + return 0; +} +-------------------------- + +And here is the `sha1-munge` program: + +-------------------------- +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <signal.h> +#include <openssl/sha.h> +#include <stdlib.h> + +/* eye candy */ +static int counter = 0; +static void progress(int sig) +{ + fprintf(stderr, "\r%d", counter); + alarm(1); +} + +static const signed char hexval_table[256] = { + -1, -1, -1, -1, -1, -1, -1, -1, /* 00-07 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 08-0f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 10-17 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 18-1f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 20-27 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 28-2f */ + 0, 1, 2, 3, 4, 5, 6, 7, /* 30-37 */ + 8, 9, -1, -1, -1, -1, -1, -1, /* 38-3f */ + -1, 10, 11, 12, 13, 14, 15, -1, /* 40-47 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 48-4f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 50-57 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 58-5f */ + -1, 10, 11, 12, 13, 14, 15, -1, /* 60-67 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 68-67 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 70-77 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 78-7f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 80-87 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 88-8f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 90-97 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* 98-9f */ + -1, -1, -1, -1, -1, -1, -1, -1, /* a0-a7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* a8-af */ + -1, -1, -1, -1, -1, -1, -1, -1, /* b0-b7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* b8-bf */ + -1, -1, -1, -1, -1, -1, -1, -1, /* c0-c7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* c8-cf */ + -1, -1, -1, -1, -1, -1, -1, -1, /* d0-d7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* d8-df */ + -1, -1, -1, -1, -1, -1, -1, -1, /* e0-e7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* e8-ef */ + -1, -1, -1, -1, -1, -1, -1, -1, /* f0-f7 */ + -1, -1, -1, -1, -1, -1, -1, -1, /* f8-ff */ +}; + +static inline unsigned int hexval(unsigned char c) +{ +return hexval_table[c]; +} + +static int get_sha1_hex(const char *hex, unsigned char *sha1) +{ + int i; + for (i = 0; i < 20; i++) { + unsigned int val; + /* + * hex[1]=='\0' is caught when val is checked below, + * but if hex[0] is NUL we have to avoid reading + * past the end of the string: + */ + if (!hex[0]) + return -1; + val = (hexval(hex[0]) << 4) | hexval(hex[1]); + if (val & ~0xff) + return -1; + *sha1++ = val; + hex += 2; + } + return 0; +} + +int main(int argc, char **argv) +{ + /* oversized so we can read the whole buffer in */ + static unsigned char buf[25 * 1024 * 1024]; + char header[32]; + int header_len; + unsigned char have[20], want[20]; + int start, len; + SHA_CTX orig; + unsigned i, j; + + if (!argv[1] || get_sha1_hex(argv[1], want)) { + fprintf(stderr, "usage: sha1-munge <sha1> [start] <file.in\n"); + return 1; + } + + if (argv[2]) + start = atoi(argv[2]); + else + start = 0; + + len = read(0, buf, sizeof(buf)); + header_len = sprintf(header, "blob %d", len) + 1; + fprintf(stderr, "using header: %s\n", header); + + /* + * We keep a running sha1 so that if you are munging + * near the end of the file, we do not have to re-sha1 + * the unchanged earlier bytes + */ + SHA1_Init(&orig); + SHA1_Update(&orig, header, header_len); + if (start) + SHA1_Update(&orig, buf, start); + + signal(SIGALRM, progress); + alarm(1); + + for (i = start; i < len; i++) { + unsigned char c; + SHA_CTX x; + +#if 0 + /* + * deletion -- this would not actually work in practice, + * I think, because we've already committed to a + * particular size in the header. Ditto for addition + * below. In those cases, you'd have to do the whole + * sha1 from scratch, or possibly keep three running + * "orig" sha1 computations going. + */ + memcpy(&x, &orig, sizeof(x)); + SHA1_Update(&x, buf + i + 1, len - i - 1); + SHA1_Final(have, &x); + if (!memcmp(have, want, 20)) + printf("i=%d, deletion\n", i); +#endif + + /* + * replacement -- note that this tries each of the 256 + * possible bytes. If you suspect a single-bit flip, + * it would be much shorter to just try the 8 + * bit-flipped variants. + */ + c = buf[i]; + for (j = 0; j <= 0xff; j++) { + buf[i] = j; + + memcpy(&x, &orig, sizeof(x)); + SHA1_Update(&x, buf + i, len - i); + SHA1_Final(have, &x); + if (!memcmp(have, want, 20)) + printf("i=%d, j=%02x\n", i, j); + } + buf[i] = c; + +#if 0 + /* addition */ + for (j = 0; j <= 0xff; j++) { + unsigned char extra = j; + memcpy(&x, &orig, sizeof(x)); + SHA1_Update(&x, &extra, 1); + SHA1_Update(&x, buf + i, len - i); + SHA1_Final(have, &x); + if (!memcmp(have, want, 20)) + printf("i=%d, addition=%02x", i, j); + } +#endif + + SHA1_Update(&orig, buf + i, 1); + counter++; + } + + alarm(0); + fprintf(stderr, "\r%d\n", counter); + return 0; +} +-------------------------- diff --git a/Documentation/howto/revert-a-faulty-merge.txt b/Documentation/howto/revert-a-faulty-merge.txt index 075418eeeb..462255ed5d 100644 --- a/Documentation/howto/revert-a-faulty-merge.txt +++ b/Documentation/howto/revert-a-faulty-merge.txt @@ -37,7 +37,7 @@ where A and B are on the side development that was not so good, M is the merge that brings these premature changes into the mainline, x are changes unrelated to what the side branch did and already made on the mainline, and W is the "revert of the merge M" (doesn't W look M upside down?). -IOW, "diff W^..W" is similar to "diff -R M^..M". +IOW, `"diff W^..W"` is similar to `"diff -R M^..M"`. Such a "revert" of a merge can be made with: @@ -54,7 +54,7 @@ where C and D are to fix what was broken in A and B, and you may already have some other changes on the mainline after W. If you merge the updated side branch (with D at its tip), none of the -changes made in A nor B will be in the result, because they were reverted +changes made in A or B will be in the result, because they were reverted by W. That is what Alan saw. Linus explains the situation: @@ -90,7 +90,7 @@ with: $ git revert W This history would (ignoring possible conflicts between what W and W..Y -changed) be equivalent to not having W nor Y at all in the history: +changed) be equivalent to not having W or Y at all in the history: ---o---o---o---M---x---x-------x---- / @@ -121,9 +121,9 @@ If you reverted the revert in such a case as in the previous example: ---A---B A'--B'--C' where Y is the revert of W, A' and B' are rerolled A and B, and there may -also be a further fix-up C' on the side branch. "diff Y^..Y" is similar -to "diff -R W^..W" (which in turn means it is similar to "diff M^..M"), -and "diff A'^..C'" by definition would be similar but different from that, +also be a further fix-up C' on the side branch. `"diff Y^..Y"` is similar +to `"diff -R W^..W"` (which in turn means it is similar to `"diff M^..M"`), +and `"diff A'^..C'"` by definition would be similar but different from that, because it is a rerolled series of the earlier change. There will be a lot of overlapping changes that result in conflicts. So do not do "revert of revert" blindly without thinking.. diff --git a/Documentation/howto/revert-branch-rebase.txt b/Documentation/howto/revert-branch-rebase.txt index 0d5419e1a9..149508e13b 100644 --- a/Documentation/howto/revert-branch-rebase.txt +++ b/Documentation/howto/revert-branch-rebase.txt @@ -137,7 +137,7 @@ $ make clean test ;# make sure it did not cause other breakage. ------------------------------------------------ Everything is in the good order. I do not need the temporary branch -nor tag anymore, so remove them: +or tag anymore, so remove them: ------------------------------------------------ $ rm -f .git/refs/tags/pu-anchor @@ -154,7 +154,7 @@ $ git pull . master Packing 0 objects Unpacking 0 objects -* committish: e3a693c... refs/heads/master from . +* commit-ish: e3a693c... refs/heads/master from . Trying to merge e3a693c... into 8c1f5f0... using 10d781b... Committed merge 7fb9b7262a1d1e0a47bbfdcbbcf50ce0635d3f8f cache.h | 8 ++++---- diff --git a/Documentation/howto/setup-git-server-over-http.txt b/Documentation/howto/setup-git-server-over-http.txt index 7f4943e102..f44e5e9458 100644 --- a/Documentation/howto/setup-git-server-over-http.txt +++ b/Documentation/howto/setup-git-server-over-http.txt @@ -6,6 +6,10 @@ Content-type: text/asciidoc How to setup Git server over http ================================= +NOTE: This document is from 2006. A lot has happened since then, and this +document is now relevant mainly if your web host is not CGI capable. +Almost everyone else should instead look at linkgit:git-http-backend[1]. + Since Apache is one of those packages people like to compile themselves while others prefer the bureaucrat's dream Debian, it is impossible to give guidelines which will work for everyone. Just send @@ -81,8 +85,8 @@ Initialize a bare repository $ git --bare init -Change the ownership to your web-server's credentials. Use "grep ^User -httpd.conf" and "grep ^Group httpd.conf" to find out: +Change the ownership to your web-server's credentials. Use `"grep ^User +httpd.conf"` and `"grep ^Group httpd.conf"` to find out: $ chown -R www.www . @@ -177,7 +181,7 @@ On Debian: Most tests should pass. -A command line tool to test WebDAV is cadaver. If you prefer GUIs, for +A command-line tool to test WebDAV is cadaver. If you prefer GUIs, for example, konqueror can open WebDAV URLs as "webdav://..." or "webdavs://...". diff --git a/Documentation/i18n.txt b/Documentation/i18n.txt index e9a1d5d25a..2dd79db5cb 100644 --- a/Documentation/i18n.txt +++ b/Documentation/i18n.txt @@ -1,18 +1,31 @@ -At the core level, Git is character encoding agnostic. - - - The pathnames recorded in the index and in the tree objects - are treated as uninterpreted sequences of non-NUL bytes. - What readdir(2) returns are what are recorded and compared - with the data Git keeps track of, which in turn are expected - to be what lstat(2) and creat(2) accepts. There is no such - thing as pathname encoding translation. +Git is to some extent character encoding agnostic. - The contents of the blob objects are uninterpreted sequences of bytes. There is no encoding translation at the core level. - - The commit log messages are uninterpreted sequences of non-NUL - bytes. + - Path names are encoded in UTF-8 normalization form C. This + applies to tree objects, the index file, ref names, as well as + path names in command line arguments, environment variables + and config files (`.git/config` (see linkgit:git-config[1]), + linkgit:gitignore[5], linkgit:gitattributes[5] and + linkgit:gitmodules[5]). ++ +Note that Git at the core level treats path names simply as +sequences of non-NUL bytes, there are no path name encoding +conversions (except on Mac and Windows). Therefore, using +non-ASCII path names will mostly work even on platforms and file +systems that use legacy extended ASCII encodings. However, +repositories created on such systems will not work properly on +UTF-8-based systems (e.g. Linux, Mac, Windows) and vice versa. +Additionally, many Git-based tools simply assume path names to +be UTF-8 and will fail to display other encodings correctly. + + - Commit log messages are typically encoded in UTF-8, but other + extended ASCII encodings are also supported. This includes + ISO-8859-x, CP125x and many others, but _not_ UTF-16/32, + EBCDIC and CJK multi-byte encodings (GBK, Shift-JIS, Big5, + EUC-x, CP9xx etc.). Although we encourage that the commit log messages are encoded in UTF-8, both the core and Git Porcelain are designed not to diff --git a/Documentation/install-webdoc.sh b/Documentation/install-webdoc.sh index 76d69a907b..ed8b4ff3e5 100755 --- a/Documentation/install-webdoc.sh +++ b/Documentation/install-webdoc.sh @@ -18,17 +18,17 @@ do else echo >&2 "# install $h $T/$h" rm -f "$T/$h" - mkdir -p `dirname "$T/$h"` + mkdir -p $(dirname "$T/$h") cp "$h" "$T/$h" fi done -strip_leading=`echo "$T/" | sed -e 's|.|.|g'` +strip_leading=$(echo "$T/" | sed -e 's|.|.|g') for th in \ "$T"/*.html "$T"/*.txt \ "$T"/howto/*.txt "$T"/howto/*.html \ "$T"/technical/*.txt "$T"/technical/*.html do - h=`expr "$th" : "$strip_leading"'\(.*\)'` + h=$(expr "$th" : "$strip_leading"'\(.*\)') case "$h" in RelNotes-*.txt | index.html) continue ;; esac diff --git a/Documentation/line-range-format.txt b/Documentation/line-range-format.txt index 3e7ce72daa..829676ff98 100644 --- a/Documentation/line-range-format.txt +++ b/Documentation/line-range-format.txt @@ -1,3 +1,5 @@ +<start> and <end> can take one of these forms: + - number + If <start> or <end> is a number, it specifies an @@ -7,7 +9,10 @@ absolute line number (lines count from 1). - /regex/ + This form will use the first line matching the given -POSIX regex. If <end> is a regex, it will search +POSIX regex. If <start> is a regex, it will search from the end of +the previous `-L` range, if any, otherwise from the start of file. +If <start> is ``^/regex/'', it will search from the start of file. +If <end> is a regex, it will search starting at the line given by <start>. + @@ -15,11 +20,11 @@ starting at the line given by <start>. + This is only valid for <end> and will specify a number of lines before or after the line given by <start>. -+ -- :regex -+ -If the option's argument is of the form :regex, it denotes the range -from the first funcname line that matches <regex>, up to the next -funcname line. + +If ``:<funcname>'' is given in place of <start> and <end>, it is a +regular expression that denotes the range from the first funcname line +that matches <funcname>, up to the next funcname line. ``:<funcname>'' +searches from the end of the previous `-L` range, if any, otherwise +from the start of file. ``^:<funcname>'' searches from the start of +file. diff --git a/Documentation/merge-config.txt b/Documentation/merge-config.txt index d78d6d854e..002ca58c21 100644 --- a/Documentation/merge-config.txt +++ b/Documentation/merge-config.txt @@ -1,4 +1,4 @@ -merge.conflictstyle:: +merge.conflictStyle:: Specify the style in which conflicted hunks are written out to working tree files upon merge. The default is "merge", which shows a `<<<<<<<` conflict marker, changes made by one side, @@ -26,11 +26,7 @@ merge.ff:: allowed (equivalent to giving the `--ff-only` option from the command line). -merge.log:: - In addition to branch names, populate the log message with at - most the specified number of one-line descriptions from the - actual commits that are being merged. Defaults to false, and - true is a synonym for 20. +include::fmt-merge-msg-config.txt[] merge.renameLimit:: The number of files to consider when performing rename detection diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt index afba8d4f3b..f08e9b80c5 100644 --- a/Documentation/merge-options.txt +++ b/Documentation/merge-options.txt @@ -14,9 +14,12 @@ inspect and further tweak the merge result before committing. further edit the auto-generated merge message, so that the user can explain and justify the merge. The `--no-edit` option can be used to accept the auto-generated message (this is generally - discouraged). The `--edit` (or `-e`) option is still useful if you are - giving a draft message with the `-m` option from the command line - and want to edit it in the editor. + discouraged). +ifndef::git-pull[] +The `--edit` (or `-e`) option is still useful if you are +giving a draft message with the `-m` option from the command line +and want to edit it in the editor. +endif::git-pull[] + Older scripts may depend on the historical behaviour of not allowing the user to edit the merge log message. They will see an editor opened when @@ -60,14 +63,13 @@ merge. --squash:: --no-squash:: - Produce the working tree and index state as if a real - merge happened (except for the merge information), - but do not actually make a commit or - move the `HEAD`, nor record `$GIT_DIR/MERGE_HEAD` to - cause the next `git commit` command to create a merge - commit. This allows you to create a single commit on - top of the current branch whose effect is the same as - merging another branch (or more in case of an octopus). + Produce the working tree and index state as if a real merge + happened (except for the merge information), but do not actually + make a commit, move the `HEAD`, or record `$GIT_DIR/MERGE_HEAD` + (to cause the next `git commit` command to create a merge + commit). This allows you to create a single commit on top of + the current branch whose effect is the same as merging another + branch (or more in case of an octopus). + With --no-squash perform the merge and commit the result. This option can be used to override --squash. diff --git a/Documentation/merge-strategies.txt b/Documentation/merge-strategies.txt index 49a9a7d53f..7bbd19b300 100644 --- a/Documentation/merge-strategies.txt +++ b/Documentation/merge-strategies.txt @@ -1,10 +1,10 @@ MERGE STRATEGIES ---------------- -The merge mechanism ('git-merge' and 'git-pull' commands) allows the +The merge mechanism (`git merge` and `git pull` commands) allows the backend 'merge strategies' to be chosen with `-s` option. Some strategies can also take their own options, which can be passed by giving `-X<option>` -arguments to 'git-merge' and/or 'git-pull'. +arguments to `git merge` and/or `git pull`. resolve:: This can only resolve two heads (i.e. the current branch @@ -20,7 +20,7 @@ recursive:: merged tree of the common ancestors and uses that as the reference tree for the 3-way merge. This has been reported to result in fewer merge conflicts without - causing mis-merges by tests done on actual merge commits + causing mismerges by tests done on actual merge commits taken from Linux 2.6 kernel development history. Additionally this can detect and handle merges involving renames. This is the default merge strategy when @@ -113,3 +113,11 @@ subtree:: match the tree structure of A, instead of reading the trees at the same level. This adjustment is also done to the common ancestor tree. + +With the strategies that use 3-way merge (including the default, 'recursive'), +if a change is made on both branches, but later reverted on one of the +branches, that change will be present in the merged result; some people find +this behavior confusing. It occurs because only the heads and the merge base +are considered when performing a merge, not the individual commits. The merge +algorithm therefore considers the reverted change as no change at all, and +substitutes the changed version instead. diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt index 1d174fd0b6..671cebd95c 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -78,8 +78,11 @@ The 'raw' format shows the entire commit exactly as stored in the commit object. Notably, the SHA-1s are displayed in full, regardless of whether --abbrev or --no-abbrev are used, and 'parents' information show the -true parent commits, without taking grafts nor history -simplification into account. +true parent commits, without taking grafts or history +simplification into account. Note that this format affects the way +commits are displayed, but not the way the diff is shown e.g. with +`git log --raw`. To get full object names in a raw diff format, +use `--no-abbrev`. * 'format:<string>' + @@ -95,7 +98,7 @@ would show something like this: The author of fe6e0ee was Junio C Hamano, 23 hours ago The title was >>t4119: test autocomputing -p<n> for traditional diff input.<< --------- +------- + The placeholders are: @@ -115,25 +118,30 @@ The placeholders are: - '%aD': author date, RFC2822 style - '%ar': author date, relative - '%at': author date, UNIX timestamp -- '%ai': author date, ISO 8601 format +- '%ai': author date, ISO 8601-like format +- '%aI': author date, strict ISO 8601 format - '%cn': committer name - '%cN': committer name (respecting .mailmap, see linkgit:git-shortlog[1] or linkgit:git-blame[1]) - '%ce': committer email - '%cE': committer email (respecting .mailmap, see linkgit:git-shortlog[1] or linkgit:git-blame[1]) -- '%cd': committer date +- '%cd': committer date (format respects --date= option) - '%cD': committer date, RFC2822 style - '%cr': committer date, relative - '%ct': committer date, UNIX timestamp -- '%ci': committer date, ISO 8601 format +- '%ci': committer date, ISO 8601-like format +- '%cI': committer date, strict ISO 8601 format - '%d': ref names, like the --decorate option of linkgit:git-log[1] +- '%D': ref names without the " (", ")" wrapping. - '%e': encoding - '%s': subject - '%f': sanitized subject line, suitable for a filename - '%b': body - '%B': raw body (unwrapped subject and body) +ifndef::git-rev-list[] - '%N': commit notes +endif::git-rev-list[] - '%GG': raw verification message from GPG for a signed commit - '%G?': show "G" for a Good signature, "B" for a Bad signature, "U" for a good, untrusted signature and "N" for no signature @@ -182,8 +190,9 @@ The placeholders are: NOTE: Some placeholders may depend on other options given to the revision traversal engine. For example, the `%g*` reflog options will insert an empty string unless we are traversing reflog entries (e.g., by -`git log -g`). The `%d` placeholder will use the "short" decoration -format if `--decorate` was not already provided on the command line. +`git log -g`). The `%d` and `%D` placeholders will use the "short" +decoration format if `--decorate` was not already provided on the command +line. If you add a `+` (plus sign) after '%' of a placeholder, a line-feed is inserted immediately before the expansion if and only if the diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt index eea0e306a8..8d6c5cec4c 100644 --- a/Documentation/pretty-options.txt +++ b/Documentation/pretty-options.txt @@ -3,9 +3,13 @@ Pretty-print the contents of the commit logs in a given format, where '<format>' can be one of 'oneline', 'short', 'medium', - 'full', 'fuller', 'email', 'raw' and 'format:<string>'. See - the "PRETTY FORMATS" section for some additional details for each - format. When omitted, the format defaults to 'medium'. + 'full', 'fuller', 'email', 'raw', 'format:<string>' + and 'tformat:<string>'. When '<format>' is none of the above, + and has '%placeholder' in it, it acts as if + '--pretty=tformat:<format>' were given. ++ +See the "PRETTY FORMATS" section for some additional details for each +format. When '=<format>' part is omitted, it defaults to 'medium'. + Note: you can specify the default pretty format in the repository configuration (see linkgit:git-config[1]). @@ -33,13 +37,17 @@ people using 80-column terminals. in their encoding header; this option can be used to tell the command to re-code the commit log message in the encoding preferred by the user. For non plumbing commands this - defaults to UTF-8. + defaults to UTF-8. Note that if an object claims to be encoded + in `X` and we are outputting in `X`, we will output the object + verbatim; this means that invalid sequences in the original + commit may be copied to the output. +ifndef::git-rev-list[] --notes[=<ref>]:: Show the notes (see linkgit:git-notes[1]) that annotate the commit, when showing the commit log message. This is the default for `git log`, `git show` and `git whatchanged` commands when - there is no `--pretty`, `--format` nor `--oneline` option given + there is no `--pretty`, `--format`, or `--oneline` option given on the command line. + By default, the notes shown are from the notes refs listed in the @@ -66,6 +74,7 @@ being displayed. Examples: "--notes=foo" will show only notes from --[no-]standard-notes:: These options are deprecated. Use the above --notes/--no-notes options instead. +endif::git-rev-list[] --show-signature:: Check the validity of a signed commit object by passing the signature diff --git a/Documentation/pull-fetch-param.txt b/Documentation/pull-fetch-param.txt index 18cffc25b8..1ebbf1d738 100644 --- a/Documentation/pull-fetch-param.txt +++ b/Documentation/pull-fetch-param.txt @@ -12,9 +12,23 @@ ifndef::git-pull[] endif::git-pull[] <refspec>:: - The format of a <refspec> parameter is an optional plus - `+`, followed by the source ref <src>, followed - by a colon `:`, followed by the destination ref <dst>. + Specifies which refs to fetch and which local refs to update. + When no <refspec>s appear on the command line, the refs to fetch + are read from `remote.<repository>.fetch` variables instead +ifndef::git-pull[] + (see <<CRTB,CONFIGURED REMOTE-TRACKING BRANCHES>> below). +endif::git-pull[] +ifdef::git-pull[] + (see linkgit:git-fetch[1]). +endif::git-pull[] ++ +The format of a <refspec> parameter is an optional plus +`+`, followed by the source ref <src>, followed +by a colon `:`, followed by the destination ref <dst>. +The colon can be omitted when <dst> is empty. ++ +`tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`; +it requests fetching everything up to the given tag. + The remote ref that matches <src> is fetched, and if <dst> is not empty string, the local @@ -24,55 +38,34 @@ is updated even if it does not result in a fast-forward update. + [NOTE] -If the remote branch from which you want to pull is -modified in non-linear ways such as being rewound and -rebased frequently, then a pull will attempt a merge with -an older version of itself, likely conflict, and fail. -It is under these conditions that you would want to use -the `+` sign to indicate non-fast-forward updates will -be needed. There is currently no easy way to determine -or declare that a branch will be made available in a -repository with this behavior; the pulling user simply +When the remote branch you want to fetch is known to +be rewound and rebased regularly, it is expected that +its new tip will not be descendant of its previous tip +(as stored in your remote-tracking branch the last time +you fetched). You would want +to use the `+` sign to indicate non-fast-forward updates +will be needed for such branches. There is no way to +determine or declare that a branch will be made available +in a repository with this behavior; the pulling user simply must know this is the expected usage pattern for a branch. -+ -[NOTE] -You never do your own development on branches that appear -on the right hand side of a <refspec> colon on `Pull:` lines; -they are to be updated by 'git fetch'. If you intend to do -development derived from a remote branch `B`, have a `Pull:` -line to track it (i.e. `Pull: B:remote-B`), and have a separate -branch `my-B` to do your development on top of it. The latter -is created by `git branch my-B remote-B` (or its equivalent `git -checkout -b my-B remote-B`). Run `git fetch` to keep track of -the progress of the remote side, and when you see something new -on the remote branch, merge it into your development branch with -`git pull . remote-B`, while you are on `my-B` branch. +ifdef::git-pull[] + [NOTE] There is a difference between listing multiple <refspec> directly on 'git pull' command line and having multiple -`Pull:` <refspec> lines for a <repository> and running +`remote.<repository>.fetch` entries in your configuration +for a <repository> and running a 'git pull' command without any explicit <refspec> parameters. -<refspec> listed explicitly on the command line are always +<refspec>s listed explicitly on the command line are always merged into the current branch after fetching. In other words, -if you list more than one remote refs, you would be making -an Octopus. While 'git pull' run without any explicit <refspec> -parameter takes default <refspec>s from `Pull:` lines, it -merges only the first <refspec> found into the current branch, -after fetching all the remote refs. This is because making an +if you list more than one remote ref, 'git pull' will create +an Octopus merge. On the other hand, if you do not list any +explicit <refspec> parameter on the command line, 'git pull' +will fetch all the <refspec>s it finds in the +`remote.<repository>.fetch` configuration and merge +only the first <refspec> found into the current branch. +This is because making an Octopus from remote refs is rarely done, while keeping track of multiple remote heads in one-go by fetching more than one is often useful. -+ -Some short-cut notations are also supported. -+ -* `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`; - it requests fetching everything up to the given tag. -ifndef::git-pull[] -* A parameter <ref> without a colon fetches that ref into FETCH_HEAD, -endif::git-pull[] -ifdef::git-pull[] -* A parameter <ref> without a colon merges <ref> into the current - branch, endif::git-pull[] - and updates the remote-tracking branches (if any). diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt index 5bdfb42852..f1c52208f0 100644 --- a/Documentation/rev-list-options.txt +++ b/Documentation/rev-list-options.txt @@ -18,33 +18,27 @@ ordering and formatting options, such as `--reverse`. -<number>:: -n <number>:: --max-count=<number>:: - Limit the number of commits to output. --skip=<number>:: - Skip 'number' commits before starting to show the commit output. --since=<date>:: --after=<date>:: - Show commits more recent than a specific date. --until=<date>:: --before=<date>:: - Show commits older than a specific date. ifdef::git-rev-list[] --max-age=<timestamp>:: --min-age=<timestamp>:: - Limit the commits output to specified time range. endif::git-rev-list[] --author=<pattern>:: --committer=<pattern>:: - Limit the commits output to ones with author/committer header lines that match the specified pattern (regular expression). With more than one `--author=<pattern>`, @@ -52,7 +46,6 @@ endif::git-rev-list[] chosen (similarly for multiple `--committer=<pattern>`). --grep-reflog=<pattern>:: - Limit the commits output to ones with reflog entries that match the specified pattern (regular expression). With more than one `--grep-reflog`, commits whose reflog message @@ -60,57 +53,55 @@ endif::git-rev-list[] error to use this option unless `--walk-reflogs` is in use. --grep=<pattern>:: - Limit the commits output to ones with log message that matches the specified pattern (regular expression). With more than one `--grep=<pattern>`, commits whose message matches any of the given patterns are chosen (but see `--all-match`). +ifndef::git-rev-list[] + -When `--show-notes` is in effect, the message from the notes as -if it is part of the log message. +When `--show-notes` is in effect, the message from the notes is +matched as if it were part of the log message. +endif::git-rev-list[] --all-match:: - Limit the commits output to ones that match all given --grep, + Limit the commits output to ones that match all given `--grep`, instead of ones that match at least one. +--invert-grep:: + Limit the commits output to ones with log message that do not + match the pattern specified with `--grep=<pattern>`. + -i:: --regexp-ignore-case:: - - Match the regexp limiting patterns without regard to letters case. + Match the regular expression limiting patterns without regard to letter + case. --basic-regexp:: - Consider the limiting patterns to be basic regular expressions; this is the default. -E:: --extended-regexp:: - Consider the limiting patterns to be extended regular expressions instead of the default basic regular expressions. -F:: --fixed-strings:: - Consider the limiting patterns to be fixed strings (don't interpret pattern as a regular expression). --perl-regexp:: - - Consider the limiting patterns to be Perl-compatible regexp. + Consider the limiting patterns to be Perl-compatible regular expressions. Requires libpcre to be compiled in. --remove-empty:: - Stop when a given path disappears from the tree. --merges:: - Print only merge commits. This is exactly the same as `--min-parents=2`. --no-merges:: - Do not print commits with more than one parent. This is exactly the same as `--max-parents=1`. @@ -118,7 +109,6 @@ if it is part of the log message. --max-parents=<number>:: --no-min-parents:: --no-max-parents:: - Show only commits which have at least (or at most) that many parent commits. In particular, `--max-parents=1` is the same as `--no-merges`, `--min-parents=2` is the same as `--merges`. `--max-parents=0` @@ -135,34 +125,30 @@ parents) and `--max-parents=-1` (negative numbers denote no upper limit). because merges into a topic branch tend to be only about adjusting to updated upstream from time to time, and this option allows you to ignore the individual commits - brought in to your history by such a merge. + brought in to your history by such a merge. Cannot be + combined with --bisect. --not:: - Reverses the meaning of the '{caret}' prefix (or lack thereof) - for all following revision specifiers, up to the next '--not'. + for all following revision specifiers, up to the next `--not`. --all:: - Pretend as if all the refs in `refs/` are listed on the command line as '<commit>'. --branches[=<pattern>]:: - Pretend as if all the refs in `refs/heads` are listed on the command line as '<commit>'. If '<pattern>' is given, limit branches to ones matching given shell glob. If pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the end is implied. --tags[=<pattern>]:: - Pretend as if all the refs in `refs/tags` are listed on the command line as '<commit>'. If '<pattern>' is given, limit tags to ones matching given shell glob. If pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the end is implied. --remotes[=<pattern>]:: - Pretend as if all the refs in `refs/remotes` are listed on the command line as '<commit>'. If '<pattern>' is given, limit remote-tracking branches to ones matching given shell glob. @@ -174,22 +160,38 @@ parents) and `--max-parents=-1` (negative numbers denote no upper limit). is automatically prepended if missing. If pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the end is implied. ---ignore-missing:: +--exclude=<glob-pattern>:: + + Do not include refs matching '<glob-pattern>' that the next `--all`, + `--branches`, `--tags`, `--remotes`, or `--glob` would otherwise + consider. Repetitions of this option accumulate exclusion patterns + up to the next `--all`, `--branches`, `--tags`, `--remotes`, or + `--glob` option (other options or arguments do not clear + accumulated patterns). ++ +The patterns given should not begin with `refs/heads`, `refs/tags`, or +`refs/remotes` when applied to `--branches`, `--tags`, or `--remotes`, +respectively, and they must begin with `refs/` when applied to `--glob` +or `--all`. If a trailing '/{asterisk}' is intended, it must be given +explicitly. +--reflog:: + Pretend as if all objects mentioned by reflogs are listed on the + command line as `<commit>`. + +--ignore-missing:: Upon seeing an invalid object name in the input, pretend as if the bad input was not given. ifndef::git-rev-list[] --bisect:: - Pretend as if the bad bisection ref `refs/bisect/bad` was listed and as if it was followed by `--not` and the good bisection refs `refs/bisect/good-*` on the command - line. + line. Cannot be combined with --first-parent. endif::git-rev-list[] --stdin:: - In addition to the '<commit>' listed on the command line, read them from the standard input. If a '--' separator is seen, stop reading commits and start reading paths to limit the @@ -197,36 +199,32 @@ endif::git-rev-list[] ifdef::git-rev-list[] --quiet:: - Don't print anything to standard output. This form is primarily meant to allow the caller to test the exit status to see if a range of objects is fully connected (or not). It is faster than redirecting stdout - to /dev/null as the output does not have to be formatted. + to `/dev/null` as the output does not have to be formatted. endif::git-rev-list[] --cherry-mark:: - Like `--cherry-pick` (see below) but mark equivalent commits with `=` rather than omitting them, and inequivalent ones with `+`. --cherry-pick:: - Omit any commit that introduces the same change as - another commit on the "other side" when the set of + another commit on the ``other side'' when the set of commits are limited with symmetric difference. + For example, if you have two branches, `A` and `B`, a usual way to list all commits on only one side of them is with `--left-right` (see the example below in the description of -the `--left-right` option). It however shows the commits that were cherry-picked -from the other branch (for example, "3rd on b" may be cherry-picked -from branch A). With this option, such pairs of commits are +the `--left-right` option). However, it shows the commits that were +cherry-picked from the other branch (for example, ``3rd on b'' may be +cherry-picked from branch A). With this option, such pairs of commits are excluded from the output. --left-only:: --right-only:: - List only commits on the respective side of a symmetric range, i.e. only those which would be marked `<` resp. `>` by `--left-right`. @@ -238,7 +236,6 @@ More precisely, `--cherry-pick --right-only --no-merges` gives the exact list. --cherry:: - A synonym for `--right-only --cherry-mark --no-merges`; useful to limit the output to the commits on our side and mark those that have been applied to the other side of a forked history with @@ -247,33 +244,38 @@ list. -g:: --walk-reflogs:: - Instead of walking the commit ancestry chain, walk reflog entries from the most recent one to older ones. When this option is used you cannot specify commits to exclude (that is, '{caret}commit', 'commit1..commit2', - nor 'commit1\...commit2' notations cannot be used). + and 'commit1\...commit2' notations cannot be used). + -With '\--pretty' format other than oneline (for obvious reasons), +With `--pretty` format other than `oneline` (for obvious reasons), this causes the output to have two extra lines of information taken from the reflog. By default, 'commit@\{Nth}' notation is used in the output. When the starting commit is specified as 'commit@\{now}', output also uses 'commit@\{timestamp}' notation -instead. Under '\--pretty=oneline', the commit message is +instead. Under `--pretty=oneline`, the commit message is prefixed with this information on the same line. -This option cannot be combined with '\--reverse'. +This option cannot be combined with `--reverse`. See also linkgit:git-reflog[1]. --merge:: - After a failed merge, show refs that touch files having a conflict and don't exist on all heads to merge. --boundary:: - Output excluded boundary commits. Boundary commits are prefixed with `-`. +ifdef::git-rev-list[] +--use-bitmap-index:: + + Try to speed up the traversal using the pack bitmap index (if + one is available). Note that when traversing with `--objects`, + trees and blobs will not have their associated path printed. +endif::git-rev-list[] + -- History Simplification @@ -287,11 +289,9 @@ is how to do it, as there are various strategies to simplify the history. The following options select the commits to be shown: <paths>:: - Commits modifying the given <paths> are selected. --simplify-by-decoration:: - Commits that are referred by some branch or tag are selected. Note that extra commits can be shown to give a meaningful history. @@ -299,33 +299,27 @@ Note that extra commits can be shown to give a meaningful history. The following options affect the way the simplification is performed: Default mode:: - Simplifies the history to the simplest history explaining the final state of the tree. Simplest because it prunes some side branches if the end result is the same (i.e. merging branches with the same content) --full-history:: - Same as the default mode, but does not prune some history. --dense:: - Only the selected commits are shown, plus some to have a meaningful history. --sparse:: - All commits in the simplified history are shown. --simplify-merges:: - - Additional option to '--full-history' to remove some needless + Additional option to `--full-history` to remove some needless merges from the resulting history, as there are no selected commits contributing to this merge. --ancestry-path:: - When given a range of commits to display (e.g. 'commit1..commit2' or 'commit2 {caret}commit1'), only display commits that exist directly on the ancestry chain between the 'commit1' and @@ -352,36 +346,35 @@ The horizontal line of history A---Q is taken to be the first parent of each merge. The commits are: * `I` is the initial commit, in which `foo` exists with contents - "asdf", and a file `quux` exists with contents "quux". Initial + ``asdf'', and a file `quux` exists with contents ``quux''. Initial commits are compared to an empty tree, so `I` is !TREESAME. -* In `A`, `foo` contains just "foo". +* In `A`, `foo` contains just ``foo''. * `B` contains the same change as `A`. Its merge `M` is trivial and hence TREESAME to all parents. -* `C` does not change `foo`, but its merge `N` changes it to "foobar", +* `C` does not change `foo`, but its merge `N` changes it to ``foobar'', so it is not TREESAME to any parent. -* `D` sets `foo` to "baz". Its merge `O` combines the strings from - `N` and `D` to "foobarbaz"; i.e., it is not TREESAME to any parent. +* `D` sets `foo` to ``baz''. Its merge `O` combines the strings from + `N` and `D` to ``foobarbaz''; i.e., it is not TREESAME to any parent. -* `E` changes `quux` to "xyzzy", and its merge `P` combines the - strings to "quux xyzzy". `P` is TREESAME to `O`, but not to `E`. +* `E` changes `quux` to ``xyzzy'', and its merge `P` combines the + strings to ``quux xyzzy''. `P` is TREESAME to `O`, but not to `E`. * `X` is an independent root commit that added a new file `side`, and `Y` modified it. `Y` is TREESAME to `X`. Its merge `Q` added `side` to `P`, and `Q` is TREESAME to `P`, but not to `Y`. -'rev-list' walks backwards through history, including or excluding -commits based on whether '\--full-history' and/or parent rewriting -(via '\--parents' or '\--children') are used. The following settings +`rev-list` walks backwards through history, including or excluding +commits based on whether `--full-history` and/or parent rewriting +(via `--parents` or `--children`) are used. The following settings are available. Default mode:: - Commits are included if they are not TREESAME to any parent - (though this can be changed, see '\--sparse' below). If the + (though this can be changed, see `--sparse` below). If the commit was a merge, and it was TREESAME to one parent, follow only that parent. (Even if there are several TREESAME parents, follow only one of them.) Otherwise, follow all @@ -400,12 +393,11 @@ available, removed `B` from consideration entirely. `C` was considered via `N`, but is TREESAME. Root commits are compared to an empty tree, so `I` is !TREESAME. + -Parent/child relations are only visible with --parents, but that does +Parent/child relations are only visible with `--parents`, but that does not affect the commits selected in default mode, so we have shown the parent lines. --full-history without parent rewriting:: - This mode differs from the default in one point: always follow all parents of a merge, even if it is TREESAME to one of them. Even if more than one side of the merge has commits that are @@ -425,9 +417,8 @@ about the parent/child relationships between the commits, so we show them disconnected. --full-history with parent rewriting:: - Ordinary commits are only included if they are !TREESAME - (though this can be changed, see '\--sparse' below). + (though this can be changed, see `--sparse` below). + Merges are always included. However, their parent list is rewritten: Along each parent, prune away commits that are not included @@ -441,7 +432,7 @@ themselves. This results in `-------------' ----------------------------------------------------------------------- + -Compare to '\--full-history' without rewriting above. Note that `E` +Compare to `--full-history` without rewriting above. Note that `E` was pruned away because it is TREESAME, but the parent list of P was rewritten to contain `E`'s parent `I`. The same happened for `C` and `N`, and `X`, `Y` and `Q`. @@ -450,22 +441,19 @@ In addition to the above settings, you can change whether TREESAME affects inclusion: --dense:: - Commits that are walked are included if they are not TREESAME to any parent. --sparse:: - All commits that are walked are included. + -Note that without '\--full-history', this still simplifies merges: if +Note that without `--full-history`, this still simplifies merges: if one of the parents is TREESAME, we follow only that one, so the other sides of the merge are never walked. --simplify-merges:: - First, build a history graph in the same way that - '\--full-history' with parent rewriting does (see above). + `--full-history` with parent rewriting does (see above). + Then simplify each commit `C` to its replacement `C'` in the final history according to the following rules: @@ -484,7 +472,7 @@ history according to the following rules: -- + The effect of this is best shown by way of comparing to -'\--full-history' with parent rewriting. The example turns into: +`--full-history` with parent rewriting. The example turns into: + ----------------------------------------------------------------------- .-A---M---N---O @@ -494,7 +482,7 @@ The effect of this is best shown by way of comparing to `---------' ----------------------------------------------------------------------- + -Note the major differences in `N`, `P` and `Q` over '--full-history': +Note the major differences in `N`, `P`, and `Q` over `--full-history`: + -- * `N`'s parent list had `I` removed, because it is an ancestor of the @@ -511,11 +499,10 @@ Note the major differences in `N`, `P` and `Q` over '--full-history': Finally, there is a fifth simplification mode available: --ancestry-path:: - Limit the displayed commits to those directly on the ancestry - chain between the "from" and "to" commits in the given commit - range. I.e. only display commits that are ancestor of the "to" - commit, and descendants of the "from" commit. + chain between the ``from'' and ``to'' commits in the given commit + range. I.e. only display commits that are ancestor of the ``to'' + commit and descendants of the ``from'' commit. + As an example use case, consider the following commit history: + @@ -530,14 +517,14 @@ As an example use case, consider the following commit history: A regular 'D..M' computes the set of commits that are ancestors of `M`, but excludes the ones that are ancestors of `D`. This is useful to see what happened to the history leading to `M` since `D`, in the sense -that "what does `M` have that did not exist in `D`". The result in this +that ``what does `M` have that did not exist in `D`''. The result in this example would be all the commits, except `A` and `B` (and `D` itself, of course). + When we want to find out what commits in `M` are contaminated with the bug introduced by `D` and need fixing, however, we might want to view only the subset of 'D..M' that are actually descendants of `D`, i.e. -excluding `C` and `K`. This is exactly what the '--ancestry-path' +excluding `C` and `K`. This is exactly what the `--ancestry-path` option does. Applied to the 'D..M' range, it results in: + ----------------------------------------------------------------------- @@ -548,7 +535,7 @@ option does. Applied to the 'D..M' range, it results in: L--M ----------------------------------------------------------------------- -The '\--simplify-by-decoration' option allows you to view only the +The `--simplify-by-decoration` option allows you to view only the big picture of the topology of the history, by omitting commits that are not referenced by tags. Commits are marked as !TREESAME (in other words, kept after history simplification rules described @@ -561,50 +548,47 @@ Bisection Helpers ~~~~~~~~~~~~~~~~~ --bisect:: - -Limit output to the one commit object which is roughly halfway between -included and excluded commits. Note that the bad bisection ref -`refs/bisect/bad` is added to the included commits (if it -exists) and the good bisection refs `refs/bisect/good-*` are -added to the excluded commits (if they exist). Thus, supposing there -are no refs in `refs/bisect/`, if - + Limit output to the one commit object which is roughly halfway between + included and excluded commits. Note that the bad bisection ref + `refs/bisect/bad` is added to the included commits (if it + exists) and the good bisection refs `refs/bisect/good-*` are + added to the excluded commits (if they exist). Thus, supposing there + are no refs in `refs/bisect/`, if ++ ----------------------------------------------------------------------- $ git rev-list --bisect foo ^bar ^baz ----------------------------------------------------------------------- - ++ outputs 'midpoint', the output of the two commands - ++ ----------------------------------------------------------------------- $ git rev-list foo ^midpoint $ git rev-list midpoint ^bar ^baz ----------------------------------------------------------------------- - ++ would be of roughly the same length. Finding the change which introduces a regression is thus reduced to a binary search: repeatedly generate and test new 'midpoint's until the commit chain is of length -one. +one. Cannot be combined with --first-parent. --bisect-vars:: - -This calculates the same as `--bisect`, except that refs in -`refs/bisect/` are not used, and except that this outputs -text ready to be eval'ed by the shell. These lines will assign the -name of the midpoint revision to the variable `bisect_rev`, and the -expected number of commits to be tested after `bisect_rev` is tested -to `bisect_nr`, the expected number of commits to be tested if -`bisect_rev` turns out to be good to `bisect_good`, the expected -number of commits to be tested if `bisect_rev` turns out to be bad to -`bisect_bad`, and the number of commits we are bisecting right now to -`bisect_all`. + This calculates the same as `--bisect`, except that refs in + `refs/bisect/` are not used, and except that this outputs + text ready to be eval'ed by the shell. These lines will assign the + name of the midpoint revision to the variable `bisect_rev`, and the + expected number of commits to be tested after `bisect_rev` is tested + to `bisect_nr`, the expected number of commits to be tested if + `bisect_rev` turns out to be good to `bisect_good`, the expected + number of commits to be tested if `bisect_rev` turns out to be bad to + `bisect_bad`, and the number of commits we are bisecting right now to + `bisect_all`. --bisect-all:: - -This outputs all the commit objects between the included and excluded -commits, ordered by their distance to the included and excluded -commits. Refs in `refs/bisect/` are not used. The farthest -from them is displayed first. (This is the only one displayed by -`--bisect`.) + This outputs all the commit objects between the included and excluded + commits, ordered by their distance to the included and excluded + commits. Refs in `refs/bisect/` are not used. The farthest + from them is displayed first. (This is the only one displayed by + `--bisect`.) + This is useful because it makes it easy to choose a good commit to test when you want to avoid to test some of them for some reason (they @@ -654,47 +638,54 @@ avoid showing the commits from two parallel development track mixed together. --reverse:: - Output the commits in reverse order. - Cannot be combined with '\--walk-reflogs'. + Cannot be combined with `--walk-reflogs`. Object Traversal ~~~~~~~~~~~~~~~~ These options are mostly targeted for packing of Git repositories. +ifdef::git-rev-list[] --objects:: - Print the object IDs of any object referenced by the listed - commits. '--objects foo ^bar' thus means "send me + commits. `--objects foo ^bar` thus means ``send me all object IDs which I need to download if I have the commit - object 'bar', but not 'foo'". + object _bar_ but not _foo_''. --objects-edge:: - - Similar to '--objects', but also print the IDs of excluded - commits prefixed with a "-" character. This is used by - linkgit:git-pack-objects[1] to build "thin" pack, which records + Similar to `--objects`, but also print the IDs of excluded + commits prefixed with a ``-'' character. This is used by + linkgit:git-pack-objects[1] to build a ``thin'' pack, which records objects in deltified form based on objects contained in these excluded commits to reduce network traffic. ---unpacked:: +--objects-edge-aggressive:: + Similar to `--objects-edge`, but it tries harder to find excluded + commits at the cost of increased time. This is used instead of + `--objects-edge` to build ``thin'' packs for shallow repositories. + +--indexed-objects:: + Pretend as if all trees and blobs used by the index are listed + on the command line. Note that you probably want to use + `--objects`, too. - Only useful with '--objects'; print the object IDs that are not +--unpacked:: + Only useful with `--objects`; print the object IDs that are not in packs. +endif::git-rev-list[] --no-walk[=(sorted|unsorted)]:: - Only show the given commits, but do not traverse their ancestors. This has no effect if a range is specified. If the argument - "unsorted" is given, the commits are show in the order they were - given on the command line. Otherwise (if "sorted" or no argument - was given), the commits are show in reverse chronological order + `unsorted` is given, the commits are shown in the order they were + given on the command line. Otherwise (if `sorted` or no argument + was given), the commits are shown in reverse chronological order by commit time. + Cannot be combined with `--graph`. --do-walk:: - - Overrides a previous --no-walk. + Overrides a previous `--no-walk`. Commit Formatting ~~~~~~~~~~~~~~~~~ @@ -708,46 +699,55 @@ endif::git-rev-list[] include::pretty-options.txt[] --relative-date:: - Synonym for `--date=relative`. ---date=(relative|local|default|iso|rfc|short|raw):: - +--date=(relative|local|default|iso|iso-strict|rfc|short|raw):: Only takes effect for dates shown in human-readable format, such - as when using "--pretty". `log.date` config variable sets a default - value for log command's --date option. + as when using `--pretty`. `log.date` config variable sets a default + value for the log command's `--date` option. + `--date=relative` shows dates relative to the current time, -e.g. "2 hours ago". +e.g. ``2 hours ago''. ++ +`--date=local` shows timestamps in user's local time zone. + -`--date=local` shows timestamps in user's local timezone. +`--date=iso` (or `--date=iso8601`) shows timestamps in a ISO 8601-like format. +The differences to the strict ISO 8601 format are: + + - a space instead of the `T` date/time delimiter + - a space between time and time zone + - no colon between hours and minutes of the time zone + + -`--date=iso` (or `--date=iso8601`) shows timestamps in ISO 8601 format. +`--date=iso-strict` (or `--date=iso8601-strict`) shows timestamps in strict +ISO 8601 format. + `--date=rfc` (or `--date=rfc2822`) shows timestamps in RFC 2822 -format, often found in E-mail messages. +format, often found in email messages. + -`--date=short` shows only date but not time, in `YYYY-MM-DD` format. +`--date=short` shows only the date, but not the time, in `YYYY-MM-DD` format. + `--date=raw` shows the date in the internal raw Git format `%s %z` format. + -`--date=default` shows timestamps in the original timezone +`--date=format:...` feeds the format `...` to your system `strftime`. +Use `--date=format:%c` to show the date in your system locale's +preferred format. See the `strftime` manual for a complete list of +format placeholders. ++ +`--date=default` shows timestamps in the original time zone (either committer's or author's). ifdef::git-rev-list[] --header:: - Print the contents of the commit in raw-format; each record is separated with a NUL character. endif::git-rev-list[] --parents:: - Print also the parents of the commit (in the form "commit parent..."). Also enables parent rewriting, see 'History Simplification' below. --children:: - Print also the children of the commit (in the form "commit child..."). Also enables parent rewriting, see 'History Simplification' below. @@ -757,7 +757,6 @@ ifdef::git-rev-list[] endif::git-rev-list[] --left-right:: - Mark which side of a symmetric diff a commit is reachable from. Commits from the left side are prefixed with `<` and those from the right with `>`. If combined with `--boundary`, those @@ -787,39 +786,44 @@ you would get an output like this: ----------------------------------------------------------------------- --graph:: - Draw a text-based graphical representation of the commit history on the left hand side of the output. This may cause extra lines to be printed in between commits, in order for the graph history to be drawn properly. + Cannot be combined with `--no-walk`. + This enables parent rewriting, see 'History Simplification' below. + -This implies the '--topo-order' option by default, but the -'--date-order' option may also be specified. +This implies the `--topo-order` option by default, but the +`--date-order` option may also be specified. + +--show-linear-break[=<barrier>]:: + When --graph is not used, all history branches are flattened + which can make it hard to see that the two consecutive commits + do not belong to a linear branch. This option puts a barrier + in between them in that case. If `<barrier>` is specified, it + is the string that will be shown instead of the default one. ifdef::git-rev-list[] --count:: Print a number stating how many commits would have been listed, and suppress all other output. When used together - with '--left-right', instead print the counts for left and + with `--left-right`, instead print the counts for left and right commits, separated by a tab. When used together with - '--cherry-mark', omit patch equivalent commits from these + `--cherry-mark`, omit patch equivalent commits from these counts and print the count for equivalent commits separated by a tab. endif::git-rev-list[] - ifndef::git-rev-list[] Diff Formatting ~~~~~~~~~~~~~~~ -Below are listed options that control the formatting of diff output. +Listed below are options that control the formatting of diff output. Some of them are specific to linkgit:git-rev-list[1], however other diff options may be given. See linkgit:git-diff-files[1] for more options. -c:: - With this option, diff output for a merge commit shows the differences from each of the parents to the merge result simultaneously instead of showing pairwise diff between a parent @@ -827,26 +831,22 @@ options may be given. See linkgit:git-diff-files[1] for more options. which were modified from all parents. --cc:: - - This flag implies the '-c' option and further compresses the + This flag implies the `-c` option and further compresses the patch output by omitting uninteresting hunks whose contents in the parents have only two variants and the merge result picks one of them without modification. -m:: - This flag makes the merge commits show the full diff like regular commits; for each merge parent, a separate log entry and diff is generated. An exception is that only diff against - the first parent is shown when '--first-parent' option is given; + the first parent is shown when `--first-parent` option is given; in that case, the output represents the changes the merge brought _into_ the then-current branch. -r:: - Show recursive diffs. -t:: - - Show the tree objects in the diff output. This implies '-r'. + Show the tree objects in the diff output. This implies `-r`. endif::git-rev-list[] diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt index d477b3f6bc..d85e303364 100644 --- a/Documentation/revisions.txt +++ b/Documentation/revisions.txt @@ -58,6 +58,9 @@ the '$GIT_DIR/refs' directory or from the '$GIT_DIR/packed-refs' file. While the ref name encoding is unspecified, UTF-8 is preferred as some output processing may assume ref names in UTF-8. +'@':: + '@' alone is a shortcut for 'HEAD'. + '<refname>@\{<date>\}', e.g. 'master@\{yesterday\}', 'HEAD@\{5 minutes ago\}':: A ref followed by the suffix '@' with a date specification enclosed in a brace @@ -85,13 +88,40 @@ some output processing may assume ref names in UTF-8. branch 'blabla' then '@\{1\}' means the same as 'blabla@\{1\}'. '@\{-<n>\}', e.g. '@\{-1\}':: - The construct '@\{-<n>\}' means the <n>th branch checked out + The construct '@\{-<n>\}' means the <n>th branch/commit checked out before the current one. '<branchname>@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}':: The suffix '@\{upstream\}' to a branchname (short form '<branchname>@\{u\}') refers to the branch that the branch specified by branchname is set to build on - top of. A missing branchname defaults to the current one. + top of (configured with `branch.<name>.remote` and + `branch.<name>.merge`). A missing branchname defaults to the + current one. + +'<branchname>@\{push\}', e.g. 'master@\{push\}', '@\{push\}':: + The suffix '@\{push}' reports the branch "where we would push to" if + `git push` were run while `branchname` was checked out (or the current + 'HEAD' if no branchname is specified). Since our push destination is + in a remote repository, of course, we report the local tracking branch + that corresponds to that branch (i.e., something in 'refs/remotes/'). ++ +Here's an example to make it more clear: ++ +------------------------------ +$ git config push.default current +$ git config remote.pushdefault myfork +$ git checkout -b mybranch origin/master + +$ git rev-parse --symbolic-full-name @{upstream} +refs/remotes/origin/master + +$ git rev-parse --symbolic-full-name @{push} +refs/remotes/myfork/mybranch +------------------------------ ++ +Note in the example that we set up a triangular workflow, where we pull +from one location and push to another. In a non-triangular workflow, +'@\{push}' is the same as '@\{upstream}', and there is no need for it. '<rev>{caret}', e.g. 'HEAD{caret}, v1.5.1{caret}0':: A suffix '{caret}' to a revision parameter means the first parent of @@ -111,16 +141,23 @@ some output processing may assume ref names in UTF-8. '<rev>{caret}\{<type>\}', e.g. 'v0.99.8{caret}\{commit\}':: A suffix '{caret}' followed by an object type name enclosed in - brace pair means the object - could be a tag, and dereference the tag recursively until an - object of that type is found or the object cannot be - dereferenced anymore (in which case, barf). '<rev>{caret}0' + brace pair means dereference the object at '<rev>' recursively until + an object of type '<type>' is found or the object cannot be + dereferenced anymore (in which case, barf). + For example, if '<rev>' is a commit-ish, '<rev>{caret}\{commit\}' + describes the corresponding commit object. + Similarly, if '<rev>' is a tree-ish, '<rev>{caret}\{tree\}' + describes the corresponding tree object. + '<rev>{caret}0' is a short-hand for '<rev>{caret}\{commit\}'. + 'rev{caret}\{object\}' can be used to make sure 'rev' names an object that exists, without requiring 'rev' to be a tag, and without dereferencing 'rev'; because a tag is already an object, it does not have to be dereferenced even once to get to an object. ++ +'rev{caret}\{tag\}' can be used to ensure that 'rev' identifies an +existing tag object. '<rev>{caret}\{\}', e.g. 'v0.99.8{caret}\{\}':: A suffix '{caret}' followed by an empty brace pair diff --git a/Documentation/technical/api-allocation-growing.txt b/Documentation/technical/api-allocation-growing.txt index 542946b1ba..5a59b54844 100644 --- a/Documentation/technical/api-allocation-growing.txt +++ b/Documentation/technical/api-allocation-growing.txt @@ -34,3 +34,6 @@ item[nr++] = value you like; ------------ You are responsible for updating the `nr` variable. + +If you need to specify the number of elements to allocate explicitly +then use the macro `REALLOC_ARRAY(item, alloc)` instead of `ALLOC_GROW`. diff --git a/Documentation/technical/api-argv-array.txt b/Documentation/technical/api-argv-array.txt index a6b7d83a8e..8076172a08 100644 --- a/Documentation/technical/api-argv-array.txt +++ b/Documentation/technical/api-argv-array.txt @@ -46,6 +46,9 @@ Functions Format a string and push it onto the end of the array. This is a convenience wrapper combining `strbuf_addf` and `argv_array_push`. +`argv_array_pushv`:: + Push a null-terminated array of strings onto the end of the array. + `argv_array_pop`:: Remove the final element from the array. If there are no elements in the array, do nothing. @@ -53,11 +56,3 @@ Functions `argv_array_clear`:: Free all memory associated with the array and return it to the initial, empty state. - -`argv_array_detach`:: - Detach the argv array from the `struct argv_array`, transferring - ownership of the allocated array and strings. - -`argv_array_free_detached`:: - Free the memory allocated by a `struct argv_array` that was later - detached and is now no longer needed. diff --git a/Documentation/technical/api-builtin.txt b/Documentation/technical/api-builtin.txt index f3c1357b7c..22a39b9299 100644 --- a/Documentation/technical/api-builtin.txt +++ b/Documentation/technical/api-builtin.txt @@ -14,19 +14,22 @@ Git: . Add the external declaration for the function to `builtin.h`. -. Add the command to `commands[]` table in `handle_internal_command()`, - defined in `git.c`. The entry should look like: +. Add the command to the `commands[]` table defined in `git.c`. + The entry should look like: { "foo", cmd_foo, <options> }, + where options is the bitwise-or of: `RUN_SETUP`:: - - Make sure there is a Git directory to work on, and if there is a - work tree, chdir to the top of it if the command was invoked - in a subdirectory. If there is no work tree, no chdir() is - done. + If there is not a Git directory to work on, abort. If there + is a work tree, chdir to the top of it if the command was + invoked in a subdirectory. If there is no work tree, no + chdir() is done. + +`RUN_SETUP_GENTLY`:: + If there is a Git directory, chdir as per RUN_SETUP, otherwise, + don't chdir anywhere. `USE_PAGER`:: diff --git a/Documentation/technical/api-config.txt b/Documentation/technical/api-config.txt index 230b3a0f60..0d8b99b368 100644 --- a/Documentation/technical/api-config.txt +++ b/Documentation/technical/api-config.txt @@ -77,6 +77,99 @@ To read a specific file in git-config format, use `git_config_from_file`. This takes the same callback and data parameters as `git_config`. +Querying For Specific Variables +------------------------------- + +For programs wanting to query for specific variables in a non-callback +manner, the config API provides two functions `git_config_get_value` +and `git_config_get_value_multi`. They both read values from an internal +cache generated previously from reading the config files. + +`int git_config_get_value(const char *key, const char **value)`:: + + Finds the highest-priority value for the configuration variable `key`, + stores the pointer to it in `value` and returns 0. When the + configuration variable `key` is not found, returns 1 without touching + `value`. The caller should not free or modify `value`, as it is owned + by the cache. + +`const struct string_list *git_config_get_value_multi(const char *key)`:: + + Finds and returns the value list, sorted in order of increasing priority + for the configuration variable `key`. When the configuration variable + `key` is not found, returns NULL. The caller should not free or modify + the returned pointer, as it is owned by the cache. + +`void git_config_clear(void)`:: + + Resets and invalidates the config cache. + +The config API also provides type specific API functions which do conversion +as well as retrieval for the queried variable, including: + +`int git_config_get_int(const char *key, int *dest)`:: + + Finds and parses the value to an integer for the configuration variable + `key`. Dies on error; otherwise, stores the value of the parsed integer in + `dest` and returns 0. When the configuration variable `key` is not found, + returns 1 without touching `dest`. + +`int git_config_get_ulong(const char *key, unsigned long *dest)`:: + + Similar to `git_config_get_int` but for unsigned longs. + +`int git_config_get_bool(const char *key, int *dest)`:: + + Finds and parses the value into a boolean value, for the configuration + variable `key` respecting keywords like "true" and "false". Integer + values are converted into true/false values (when they are non-zero or + zero, respectively). Other values cause a die(). If parsing is successful, + stores the value of the parsed result in `dest` and returns 0. When the + configuration variable `key` is not found, returns 1 without touching + `dest`. + +`int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)`:: + + Similar to `git_config_get_bool`, except that integers are copied as-is, + and `is_bool` flag is unset. + +`int git_config_get_maybe_bool(const char *key, int *dest)`:: + + Similar to `git_config_get_bool`, except that it returns -1 on error + rather than dying. + +`int git_config_get_string_const(const char *key, const char **dest)`:: + + Allocates and copies the retrieved string into the `dest` parameter for + the configuration variable `key`; if NULL string is given, prints an + error message and returns -1. When the configuration variable `key` is + not found, returns 1 without touching `dest`. + +`int git_config_get_string(const char *key, char **dest)`:: + + Similar to `git_config_get_string_const`, except that retrieved value + copied into the `dest` parameter is a mutable string. + +`int git_config_get_pathname(const char *key, const char **dest)`:: + + Similar to `git_config_get_string`, but expands `~` or `~user` into + the user's home directory when found at the beginning of the path. + +`git_die_config(const char *key, const char *err, ...)`:: + + First prints the error message specified by the caller in `err` and then + dies printing the line number and the file name of the highest priority + value for the configuration variable `key`. + +`void git_die_config_linenr(const char *key, const char *filename, int linenr)`:: + + Helper function which formats the die error message according to the + parameters entered. Used by `git_die_config()`. It can be used by callers + handling `git_config_get_value_multi()` to print the correct error message + for the desired value. + +See test-config.c for usage examples. + Value Parsing Helpers --------------------- @@ -134,7 +227,98 @@ int read_file_with_include(const char *file, config_fn_t fn, void *data) `git_config` respects includes automatically. The lower-level `git_config_from_file` does not. +Custom Configsets +----------------- + +A `config_set` can be used to construct an in-memory cache for +config-like files that the caller specifies (i.e., files like `.gitmodules`, +`~/.gitconfig` etc.). For example, + +--------------------------------------- +struct config_set gm_config; +git_configset_init(&gm_config); +int b; +/* we add config files to the config_set */ +git_configset_add_file(&gm_config, ".gitmodules"); +git_configset_add_file(&gm_config, ".gitmodules_alt"); + +if (!git_configset_get_bool(gm_config, "submodule.frotz.ignore", &b)) { + /* hack hack hack */ +} + +/* when we are done with the configset */ +git_configset_clear(&gm_config); +---------------------------------------- + +Configset API provides functions for the above mentioned work flow, including: + +`void git_configset_init(struct config_set *cs)`:: + + Initializes the config_set `cs`. + +`int git_configset_add_file(struct config_set *cs, const char *filename)`:: + + Parses the file and adds the variable-value pairs to the `config_set`, + dies if there is an error in parsing the file. Returns 0 on success, or + -1 if the file does not exist or is inaccessible. The user has to decide + if he wants to free the incomplete configset or continue using it when + the function returns -1. + +`int git_configset_get_value(struct config_set *cs, const char *key, const char **value)`:: + + Finds the highest-priority value for the configuration variable `key` + and config set `cs`, stores the pointer to it in `value` and returns 0. + When the configuration variable `key` is not found, returns 1 without + touching `value`. The caller should not free or modify `value`, as it + is owned by the cache. + +`const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)`:: + + Finds and returns the value list, sorted in order of increasing priority + for the configuration variable `key` and config set `cs`. When the + configuration variable `key` is not found, returns NULL. The caller + should not free or modify the returned pointer, as it is owned by the cache. + +`void git_configset_clear(struct config_set *cs)`:: + + Clears `config_set` structure, removes all saved variable-value pairs. + +In addition to above functions, the `config_set` API provides type specific +functions in the vein of `git_config_get_int` and family but with an extra +parameter, pointer to struct `config_set`. +They all behave similarly to the `git_config_get*()` family described in +"Querying For Specific Variables" above. + Writing Config Files -------------------- -TODO +Git gives multiple entry points in the Config API to write config values to +files namely `git_config_set_in_file` and `git_config_set`, which write to +a specific config file or to `.git/config` respectively. They both take a +key/value pair as parameter. +In the end they both call `git_config_set_multivar_in_file` which takes four +parameters: + +- the name of the file, as a string, to which key/value pairs will be written. + +- the name of key, as a string. This is in canonical "flat" form: the section, + subsection, and variable segments will be separated by dots, and the section + and variable segments will be all lowercase. + E.g., `core.ignorecase`, `diff.SomeType.textconv`. + +- the value of the variable, as a string. If value is equal to NULL, it will + remove the matching key from the config file. + +- the value regex, as a string. It will disregard key/value pairs where value + does not match. + +- a multi_replace value, as an int. If value is equal to zero, nothing or only + one matching key/value is replaced, else all matching key/values (regardless + how many) are removed, before the new pair is written. + +It returns 0 on success. + +Also, there are functions `git_config_rename_section` and +`git_config_rename_section_in_file` with parameters `old_name` and `new_name` +for renaming or removing sections in the config files. If NULL is passed +through `new_name` parameter, the section will be removed from the config file. diff --git a/Documentation/technical/api-credentials.txt b/Documentation/technical/api-credentials.txt index c1b42a40d3..e44426dd04 100644 --- a/Documentation/technical/api-credentials.txt +++ b/Documentation/technical/api-credentials.txt @@ -248,7 +248,10 @@ FORMAT` in linkgit:git-credential[7] for a detailed specification). For a `get` operation, the helper should produce a list of attributes on stdout in the same format. A helper is free to produce a subset, or even no values at all if it has nothing useful to provide. Any provided -attributes will overwrite those already known about by Git. +attributes will overwrite those already known about by Git. If a helper +outputs a `quit` attribute with a value of `true` or `1`, no further +helpers will be consulted, nor will the user be prompted (if no +credential has been provided, the operation will then fail). For a `store` or `erase` operation, the helper's output is ignored. If it fails to perform the requested operation, it may complain to diff --git a/Documentation/technical/api-diff.txt b/Documentation/technical/api-diff.txt index 2d2ebc04b7..8b001de0db 100644 --- a/Documentation/technical/api-diff.txt +++ b/Documentation/technical/api-diff.txt @@ -28,7 +28,8 @@ Calling sequence * Call `diff_setup_done()`; this inspects the options set up so far for internal consistency and make necessary tweaking to it (e.g. if - textual patch output was asked, recursive behaviour is turned on). + textual patch output was asked, recursive behaviour is turned on); + the callback set_default in diff_options can be used to tweak this more. * As you find different pairs of files, call `diff_change()` to feed modified files, `diff_addremove()` to feed created or deleted files, @@ -115,6 +116,13 @@ Notable members are: operation, but some do not have anything to do with the diffcore library. +`touched_flags`:: + Records whether a flag has been changed due to user request + (rather than just set/unset by default). + +`set_default`:: + Callback which allows tweaking the options in diff_setup_done(). + BINARY, TEXT;; Affects the way how a file that is seemingly binary is treated. diff --git a/Documentation/technical/api-error-handling.txt b/Documentation/technical/api-error-handling.txt new file mode 100644 index 0000000000..ceeedd485c --- /dev/null +++ b/Documentation/technical/api-error-handling.txt @@ -0,0 +1,75 @@ +Error reporting in git +====================== + +`die`, `usage`, `error`, and `warning` report errors of various +kinds. + +- `die` is for fatal application errors. It prints a message to + the user and exits with status 128. + +- `usage` is for errors in command line usage. After printing its + message, it exits with status 129. (See also `usage_with_options` + in the link:api-parse-options.html[parse-options API].) + +- `error` is for non-fatal library errors. It prints a message + to the user and returns -1 for convenience in signaling the error + to the caller. + +- `warning` is for reporting situations that probably should not + occur but which the user (and Git) can continue to work around + without running into too many problems. Like `error`, it + returns -1 after reporting the situation to the caller. + +Customizable error handlers +--------------------------- + +The default behavior of `die` and `error` is to write a message to +stderr and then exit or return as appropriate. This behavior can be +overridden using `set_die_routine` and `set_error_routine`. For +example, "git daemon" uses set_die_routine to write the reason `die` +was called to syslog before exiting. + +Library errors +-------------- + +Functions return a negative integer on error. Details beyond that +vary from function to function: + +- Some functions return -1 for all errors. Others return a more + specific value depending on how the caller might want to react + to the error. + +- Some functions report the error to stderr with `error`, + while others leave that for the caller to do. + +- errno is not meaningful on return from most functions (except + for thin wrappers for system calls). + +Check the function's API documentation to be sure. + +Caller-handled errors +--------------------- + +An increasing number of functions take a parameter 'struct strbuf *err'. +On error, such functions append a message about what went wrong to the +'err' strbuf. The message is meant to be complete enough to be passed +to `die` or `error` as-is. For example: + + if (ref_transaction_commit(transaction, &err)) + die("%s", err.buf); + +The 'err' parameter will be untouched if no error occurred, so multiple +function calls can be chained: + + t = ref_transaction_begin(&err); + if (!t || + ref_transaction_update(t, "HEAD", ..., &err) || + ret_transaction_commit(t, &err)) + die("%s", err.buf); + +The 'err' parameter must be a pointer to a valid strbuf. To silence +a message, pass a strbuf that is explicitly ignored: + + if (thing_that_can_fail_in_an_ignorable_way(..., &err)) + /* This failure is okay. */ + strbuf_reset(&err); diff --git a/Documentation/technical/api-gitattributes.txt b/Documentation/technical/api-gitattributes.txt index ce363b6305..2602668677 100644 --- a/Documentation/technical/api-gitattributes.txt +++ b/Documentation/technical/api-gitattributes.txt @@ -99,7 +99,7 @@ static void setup_check(void) The attribute is Unset, by listing the name of the attribute prefixed with a dash - for the path. } else if (ATTR_UNSET(value)) { - The attribute is not set nor unset for the path. + The attribute is neither set nor unset for the path. } else if (!strcmp(value, "input")) { If none of ATTR_TRUE(), ATTR_FALSE(), or ATTR_UNSET() is true, the value is a string set in the gitattributes diff --git a/Documentation/technical/api-hash.txt b/Documentation/technical/api-hash.txt deleted file mode 100644 index e5061e0677..0000000000 --- a/Documentation/technical/api-hash.txt +++ /dev/null @@ -1,52 +0,0 @@ -hash API -======== - -The hash API is a collection of simple hash table functions. Users are expected -to implement their own hashing. - -Data Structures ---------------- - -`struct hash_table`:: - - The hash table structure. The `array` member points to the hash table - entries. The `size` member counts the total number of valid and invalid - entries in the table. The `nr` member keeps track of the number of - valid entries. - -`struct hash_table_entry`:: - - An opaque structure representing an entry in the hash table. The `hash` - member is the entry's hash key and the `ptr` member is the entry's - value. - -Functions ---------- - -`init_hash`:: - - Initialize the hash table. - -`free_hash`:: - - Release memory associated with the hash table. - -`insert_hash`:: - - Insert a pointer into the hash table. If an entry with that hash - already exists, a pointer to the existing entry's value is returned. - Otherwise NULL is returned. This allows callers to implement - chaining, etc. - -`lookup_hash`:: - - Lookup an entry in the hash table. If an entry with that hash exists - the entry's value is returned. Otherwise NULL is returned. - -`for_each_hash`:: - - Call a function for each entry in the hash table. The function is - expected to take the entry's value as its only argument and return an - int. If the function returns a negative int the loop is aborted - immediately. Otherwise, the return value is accumulated and the sum - returned upon completion of the loop. diff --git a/Documentation/technical/api-hashmap.txt b/Documentation/technical/api-hashmap.txt new file mode 100644 index 0000000000..ad7a5bddd2 --- /dev/null +++ b/Documentation/technical/api-hashmap.txt @@ -0,0 +1,280 @@ +hashmap API +=========== + +The hashmap API is a generic implementation of hash-based key-value mappings. + +Data Structures +--------------- + +`struct hashmap`:: + + The hash table structure. Members can be used as follows, but should + not be modified directly: ++ +The `size` member keeps track of the total number of entries (0 means the +hashmap is empty). ++ +`tablesize` is the allocated size of the hash table. A non-0 value indicates +that the hashmap is initialized. It may also be useful for statistical purposes +(i.e. `size / tablesize` is the current load factor). ++ +`cmpfn` stores the comparison function specified in `hashmap_init()`. In +advanced scenarios, it may be useful to change this, e.g. to switch between +case-sensitive and case-insensitive lookup. + +`struct hashmap_entry`:: + + An opaque structure representing an entry in the hash table, which must + be used as first member of user data structures. Ideally it should be + followed by an int-sized member to prevent unused memory on 64-bit + systems due to alignment. ++ +The `hash` member is the entry's hash code and the `next` member points to the +next entry in case of collisions (i.e. if multiple entries map to the same +bucket). + +`struct hashmap_iter`:: + + An iterator structure, to be used with hashmap_iter_* functions. + +Types +----- + +`int (*hashmap_cmp_fn)(const void *entry, const void *entry_or_key, const void *keydata)`:: + + User-supplied function to test two hashmap entries for equality. Shall + return 0 if the entries are equal. ++ +This function is always called with non-NULL `entry` / `entry_or_key` +parameters that have the same hash code. When looking up an entry, the `key` +and `keydata` parameters to hashmap_get and hashmap_remove are always passed +as second and third argument, respectively. Otherwise, `keydata` is NULL. + +Functions +--------- + +`unsigned int strhash(const char *buf)`:: +`unsigned int strihash(const char *buf)`:: +`unsigned int memhash(const void *buf, size_t len)`:: +`unsigned int memihash(const void *buf, size_t len)`:: + + Ready-to-use hash functions for strings, using the FNV-1 algorithm (see + http://www.isthe.com/chongo/tech/comp/fnv). ++ +`strhash` and `strihash` take 0-terminated strings, while `memhash` and +`memihash` operate on arbitrary-length memory. ++ +`strihash` and `memihash` are case insensitive versions. + +`unsigned int sha1hash(const unsigned char *sha1)`:: + + Converts a cryptographic hash (e.g. SHA-1) into an int-sized hash code + for use in hash tables. Cryptographic hashes are supposed to have + uniform distribution, so in contrast to `memhash()`, this just copies + the first `sizeof(int)` bytes without shuffling any bits. Note that + the results will be different on big-endian and little-endian + platforms, so they should not be stored or transferred over the net. + +`void hashmap_init(struct hashmap *map, hashmap_cmp_fn equals_function, size_t initial_size)`:: + + Initializes a hashmap structure. ++ +`map` is the hashmap to initialize. ++ +The `equals_function` can be specified to compare two entries for equality. +If NULL, entries are considered equal if their hash codes are equal. ++ +If the total number of entries is known in advance, the `initial_size` +parameter may be used to preallocate a sufficiently large table and thus +prevent expensive resizing. If 0, the table is dynamically resized. + +`void hashmap_free(struct hashmap *map, int free_entries)`:: + + Frees a hashmap structure and allocated memory. ++ +`map` is the hashmap to free. ++ +If `free_entries` is true, each hashmap_entry in the map is freed as well +(using stdlib's free()). + +`void hashmap_entry_init(void *entry, unsigned int hash)`:: + + Initializes a hashmap_entry structure. ++ +`entry` points to the entry to initialize. ++ +`hash` is the hash code of the entry. + +`void *hashmap_get(const struct hashmap *map, const void *key, const void *keydata)`:: + + Returns the hashmap entry for the specified key, or NULL if not found. ++ +`map` is the hashmap structure. ++ +`key` is a hashmap_entry structure (or user data structure that starts with +hashmap_entry) that has at least been initialized with the proper hash code +(via `hashmap_entry_init`). ++ +If an entry with matching hash code is found, `key` and `keydata` are passed +to `hashmap_cmp_fn` to decide whether the entry matches the key. + +`void *hashmap_get_from_hash(const struct hashmap *map, unsigned int hash, const void *keydata)`:: + + Returns the hashmap entry for the specified hash code and key data, + or NULL if not found. ++ +`map` is the hashmap structure. ++ +`hash` is the hash code of the entry to look up. ++ +If an entry with matching hash code is found, `keydata` is passed to +`hashmap_cmp_fn` to decide whether the entry matches the key. The +`entry_or_key` parameter points to a bogus hashmap_entry structure that +should not be used in the comparison. + +`void *hashmap_get_next(const struct hashmap *map, const void *entry)`:: + + Returns the next equal hashmap entry, or NULL if not found. This can be + used to iterate over duplicate entries (see `hashmap_add`). ++ +`map` is the hashmap structure. ++ +`entry` is the hashmap_entry to start the search from, obtained via a previous +call to `hashmap_get` or `hashmap_get_next`. + +`void hashmap_add(struct hashmap *map, void *entry)`:: + + Adds a hashmap entry. This allows to add duplicate entries (i.e. + separate values with the same key according to hashmap_cmp_fn). ++ +`map` is the hashmap structure. ++ +`entry` is the entry to add. + +`void *hashmap_put(struct hashmap *map, void *entry)`:: + + Adds or replaces a hashmap entry. If the hashmap contains duplicate + entries equal to the specified entry, only one of them will be replaced. ++ +`map` is the hashmap structure. ++ +`entry` is the entry to add or replace. ++ +Returns the replaced entry, or NULL if not found (i.e. the entry was added). + +`void *hashmap_remove(struct hashmap *map, const void *key, const void *keydata)`:: + + Removes a hashmap entry matching the specified key. If the hashmap + contains duplicate entries equal to the specified key, only one of + them will be removed. ++ +`map` is the hashmap structure. ++ +`key` is a hashmap_entry structure (or user data structure that starts with +hashmap_entry) that has at least been initialized with the proper hash code +(via `hashmap_entry_init`). ++ +If an entry with matching hash code is found, `key` and `keydata` are +passed to `hashmap_cmp_fn` to decide whether the entry matches the key. ++ +Returns the removed entry, or NULL if not found. + +`void hashmap_iter_init(struct hashmap *map, struct hashmap_iter *iter)`:: +`void *hashmap_iter_next(struct hashmap_iter *iter)`:: +`void *hashmap_iter_first(struct hashmap *map, struct hashmap_iter *iter)`:: + + Used to iterate over all entries of a hashmap. ++ +`hashmap_iter_init` initializes a `hashmap_iter` structure. ++ +`hashmap_iter_next` returns the next hashmap_entry, or NULL if there are no +more entries. ++ +`hashmap_iter_first` is a combination of both (i.e. initializes the iterator +and returns the first entry, if any). + +`const char *strintern(const char *string)`:: +`const void *memintern(const void *data, size_t len)`:: + + Returns the unique, interned version of the specified string or data, + similar to the `String.intern` API in Java and .NET, respectively. + Interned strings remain valid for the entire lifetime of the process. ++ +Can be used as `[x]strdup()` or `xmemdupz` replacement, except that interned +strings / data must not be modified or freed. ++ +Interned strings are best used for short strings with high probability of +duplicates. ++ +Uses a hashmap to store the pool of interned strings. + +Usage example +------------- + +Here's a simple usage example that maps long keys to double values. +------------ +struct hashmap map; + +struct long2double { + struct hashmap_entry ent; /* must be the first member! */ + long key; + double value; +}; + +static int long2double_cmp(const struct long2double *e1, const struct long2double *e2, const void *unused) +{ + return !(e1->key == e2->key); +} + +void long2double_init(void) +{ + hashmap_init(&map, (hashmap_cmp_fn) long2double_cmp, 0); +} + +void long2double_free(void) +{ + hashmap_free(&map, 1); +} + +static struct long2double *find_entry(long key) +{ + struct long2double k; + hashmap_entry_init(&k, memhash(&key, sizeof(long))); + k.key = key; + return hashmap_get(&map, &k, NULL); +} + +double get_value(long key) +{ + struct long2double *e = find_entry(key); + return e ? e->value : 0; +} + +void set_value(long key, double value) +{ + struct long2double *e = find_entry(key); + if (!e) { + e = malloc(sizeof(struct long2double)); + hashmap_entry_init(e, memhash(&key, sizeof(long))); + e->key = key; + hashmap_add(&map, e); + } + e->value = value; +} +------------ + +Using variable-sized keys +------------------------- + +The `hashmap_entry_get` and `hashmap_entry_remove` functions expect an ordinary +`hashmap_entry` structure as key to find the correct entry. If the key data is +variable-sized (e.g. a FLEX_ARRAY string) or quite large, it is undesirable +to create a full-fledged entry structure on the heap and copy all the key data +into the structure. + +In this case, the `keydata` parameter can be used to pass +variable-sized key data directly to the comparison function, and the `key` +parameter can be a stripped-down, fixed size entry structure allocated on the +stack. + +See test-hashmap.c for an example using arbitrary-length strings as keys. diff --git a/Documentation/technical/api-lockfile.txt b/Documentation/technical/api-lockfile.txt deleted file mode 100644 index dd894043ae..0000000000 --- a/Documentation/technical/api-lockfile.txt +++ /dev/null @@ -1,74 +0,0 @@ -lockfile API -============ - -The lockfile API serves two purposes: - -* Mutual exclusion. When we write out a new index file, first - we create a new file `$GIT_DIR/index.lock`, write the new - contents into it, and rename it to the final destination - `$GIT_DIR/index`. We try to create the `$GIT_DIR/index.lock` - file with O_EXCL so that we can notice and fail when somebody - else is already trying to update the index file. - -* Automatic cruft removal. After we create the "lock" file, we - may decide to `die()`, and we would want to make sure that we - remove the file that has not been committed to its final - destination. This is done by remembering the lockfiles we - created in a linked list and cleaning them up from an - `atexit(3)` handler. Outstanding lockfiles are also removed - when the program dies on a signal. - - -The functions -------------- - -hold_lock_file_for_update:: - - Take a pointer to `struct lock_file`, the filename of - the final destination (e.g. `$GIT_DIR/index`) and a flag - `die_on_error`. Attempt to create a lockfile for the - destination and return the file descriptor for writing - to the file. If `die_on_error` flag is true, it dies if - a lock is already taken for the file; otherwise it - returns a negative integer to the caller on failure. - -commit_lock_file:: - - Take a pointer to the `struct lock_file` initialized - with an earlier call to `hold_lock_file_for_update()`, - close the file descriptor and rename the lockfile to its - final destination. Returns 0 upon success, a negative - value on failure to close(2) or rename(2). - -rollback_lock_file:: - - Take a pointer to the `struct lock_file` initialized - with an earlier call to `hold_lock_file_for_update()`, - close the file descriptor and remove the lockfile. - -close_lock_file:: - Take a pointer to the `struct lock_file` initialized - with an earlier call to `hold_lock_file_for_update()`, - and close the file descriptor. Returns 0 upon success, - a negative value on failure to close(2). - -Because the structure is used in an `atexit(3)` handler, its -storage has to stay throughout the life of the program. It -cannot be an auto variable allocated on the stack. - -Call `commit_lock_file()` or `rollback_lock_file()` when you are -done writing to the file descriptor. If you do not call either -and simply `exit(3)` from the program, an `atexit(3)` handler -will close and remove the lockfile. - -If you need to close the file descriptor you obtained from -`hold_lock_file_for_update` function yourself, do so by calling -`close_lock_file()`. You should never call `close(2)` yourself! -Otherwise the `struct -lock_file` structure still remembers that the file descriptor -needs to be closed, and a later call to `commit_lock_file()` or -`rollback_lock_file()` will result in duplicate calls to -`close(2)`. Worse yet, if you `close(2)`, open another file -descriptor for completely different purpose, and then call -`commit_lock_file()` or `rollback_lock_file()`, they may close -that unrelated file descriptor. diff --git a/Documentation/technical/api-parse-options.txt b/Documentation/technical/api-parse-options.txt index 0be2b5159f..5f0757dcc9 100644 --- a/Documentation/technical/api-parse-options.txt +++ b/Documentation/technical/api-parse-options.txt @@ -29,9 +29,9 @@ that allow to change the behavior of a command. The parse-options API allows: -* 'sticked' and 'separate form' of options with arguments. - `-oArg` is sticked, `-o Arg` is separate form. - `--option=Arg` is sticked, `--option Arg` is separate form. +* 'stuck' and 'separate form' of options with arguments. + `-oArg` is stuck, `-o Arg` is separate form. + `--option=Arg` is stuck, `--option Arg` is separate form. * Long options may be 'abbreviated', as long as the abbreviation is unambiguous. @@ -160,10 +160,6 @@ There are some macros to easily define options: `int_var` is set to `integer` with `--option`, and reset to zero with `--no-option`. -`OPT_SET_PTR(short, long, &ptr_var, description, ptr)`:: - Introduce a boolean option. - If used, set `ptr_var` to `ptr`. - `OPT_STRING(short, long, &str_var, arg_str, description)`:: Introduce an option with string argument. The string argument is put into `str_var`. @@ -172,6 +168,12 @@ There are some macros to easily define options: Introduce an option with integer argument. The integer is put into `int_var`. +`OPT_MAGNITUDE(short, long, &unsigned_long_var, description)`:: + Introduce an option with a size argument. The argument must be a + non-negative integer and may include a suffix of 'k', 'm' or 'g' to + scale the provided value by 1024, 1024^2 or 1024^3 respectively. + The scaled value is put into `unsigned_long_var`. + `OPT_DATE(short, long, &int_var, description)`:: Introduce an option with date argument, see `approxidate()`. The timestamp is put into `int_var`. @@ -216,6 +218,19 @@ There are some macros to easily define options: Use it to hide deprecated options that are still to be recognized and ignored silently. +`OPT_PASSTHRU(short, long, &char_var, arg_str, description, flags)`:: + Introduce an option that will be reconstructed into a char* string, + which must be initialized to NULL. This is useful when you need to + pass the command-line option to another command. Any previous value + will be overwritten, so this should only be used for options where + the last one specified on the command line wins. + +`OPT_PASSTHRU_ARGV(short, long, &argv_array_var, arg_str, description, flags)`:: + Introduce an option where all instances of it on the command-line will + be reconstructed into an argv_array. This is useful when you need to + pass the command-line option, which can be specified multiple times, + to another command. + The last element of the array must be `OPT_END()`. diff --git a/Documentation/technical/api-ref-iteration.txt b/Documentation/technical/api-ref-iteration.txt index aa1c50f181..37379d8337 100644 --- a/Documentation/technical/api-ref-iteration.txt +++ b/Documentation/technical/api-ref-iteration.txt @@ -6,7 +6,7 @@ Iteration of refs is done by using an iterate function which will call a callback function for every ref. The callback function has this signature: - int handle_one_ref(const char *refname, const unsigned char *sha1, + int handle_one_ref(const char *refname, const struct object_id *oid, int flags, void *cb_data); There are different kinds of iterate functions which all take a @@ -50,10 +50,10 @@ submodules object database. You can do this by a code-snippet like this: const char *path = "path/to/submodule" - if (!add_submodule_odb(path)) + if (add_submodule_odb(path)) die("Error submodule '%s' not populated.", path); -`add_submodule_odb()` will return an non-zero value on success. If you +`add_submodule_odb()` will return zero on success. If you do not do this you will get an error for each ref that it does not point to a valid object. diff --git a/Documentation/technical/api-remote.txt b/Documentation/technical/api-remote.txt index 4be87768f6..2cfdd224a8 100644 --- a/Documentation/technical/api-remote.txt +++ b/Documentation/technical/api-remote.txt @@ -58,16 +58,16 @@ default remote, given the current branch and configuration. struct refspec -------------- -A struct refspec holds the parsed interpretation of a refspec. If it -will force updates (starts with a '+'), force is true. If it is a -pattern (sides end with '*') pattern is true. src and dest are the two -sides (if a pattern, only the part outside of the wildcards); if there -is only one side, it is src, and dst is NULL; if sides exist but are -empty (i.e., the refspec either starts or ends with ':'), the -corresponding side is "". +A struct refspec holds the parsed interpretation of a refspec. If it +will force updates (starts with a '+'), force is true. If it is a +pattern (sides end with '*') pattern is true. src and dest are the +two sides (including '*' characters if present); if there is only one +side, it is src, and dst is NULL; if sides exist but are empty (i.e., +the refspec either starts or ends with ':'), the corresponding side is +"". -This parsing can be done to an array of strings to give an array of -struct refpsecs with parse_ref_spec(). +An array of strings can be parsed into an array of struct refspecs +using parse_fetch_refspec() or parse_push_refspec(). remote_find_tracking(), given a remote and a struct refspec with either src or dst filled out, will fill out the other such that the @@ -97,10 +97,6 @@ It contains: The name of the remote listed in the configuration. -`remote`:: - - The struct remote for that remote. - `merge_name`:: An array of the "merge" lines in the configuration. diff --git a/Documentation/technical/api-run-command.txt b/Documentation/technical/api-run-command.txt index 5d7d7f2d32..a9fdb45b93 100644 --- a/Documentation/technical/api-run-command.txt +++ b/Documentation/technical/api-run-command.txt @@ -13,6 +13,10 @@ produces in the caller in order to process it. Functions --------- +`child_process_init`:: + + Initialize a struct child_process variable. + `start_command`:: Start a sub-process. Takes a pointer to a `struct child_process` @@ -96,8 +100,8 @@ command to run in a sub-process. The caller: -1. allocates and clears (memset(&chld, 0, sizeof(chld));) a - struct child_process variable; +1. allocates and clears (using child_process_init() or + CHILD_PROCESS_INIT) a struct child_process variable; 2. initializes the members; 3. calls start_command(); 4. processes the data; @@ -109,6 +113,13 @@ terminated), of which .argv[0] is the program name to run (usually without a path). If the command to run is a git command, set argv[0] to the command name without the 'git-' prefix and set .git_cmd = 1. +Note that the ownership of the memory pointed to by .argv stays with the +caller, but it should survive until `finish_command` completes. If the +.argv member is NULL, `start_command` will point it at the .args +`argv_array` (so you may use one or the other, but you must use exactly +one). The memory in .args will be cleaned up automatically during +`finish_command` (or during `start_command` when it is unsuccessful). + The members .in, .out, .err are used to redirect stdin, stdout, stderr as follows: @@ -158,6 +169,11 @@ string pointers (NULL terminated) in .env: . If the string does not contain '=', it names an environment variable that will be removed from the child process's environment. +If the .env member is NULL, `start_command` will point it at the +.env_array `argv_array` (so you may use one or the other, but not both). +The memory in .env_array will be cleaned up automatically during +`finish_command` (or during `start_command` when it is unsuccessful). + To specify a new initial working directory for the sub-process, specify it in the .dir member. diff --git a/Documentation/technical/api-setup.txt b/Documentation/technical/api-setup.txt index 4f63a04d7d..540e455689 100644 --- a/Documentation/technical/api-setup.txt +++ b/Documentation/technical/api-setup.txt @@ -8,6 +8,42 @@ Talk about * is_inside_git_dir() * is_inside_work_tree() * setup_work_tree() -* get_pathspec() (Dscho) + +Pathspec +-------- + +See glossary-context.txt for the syntax of pathspec. In memory, a +pathspec set is represented by "struct pathspec" and is prepared by +parse_pathspec(). This function takes several arguments: + +- magic_mask specifies what features that are NOT supported by the + following code. If a user attempts to use such a feature, + parse_pathspec() can reject it early. + +- flags specifies other things that the caller wants parse_pathspec to + perform. + +- prefix and args come from cmd_* functions + +get_pathspec() is obsolete and should never be used in new code. + +parse_pathspec() helps catch unsupported features and reject them +politely. At a lower level, different pathspec-related functions may +not support the same set of features. Such pathspec-sensitive +functions are guarded with GUARD_PATHSPEC(), which will die in an +unfriendly way when an unsupported feature is requested. + +The command designers are supposed to make sure that GUARD_PATHSPEC() +never dies. They have to make sure all unsupported features are caught +by parse_pathspec(), not by GUARD_PATHSPEC. grepping GUARD_PATHSPEC() +should give the designers all pathspec-sensitive codepaths and what +features they support. + +A similar process is applied when a new pathspec magic is added. The +designer lifts the GUARD_PATHSPEC restriction in the functions that +support the new magic. At the same time (s)he has to make sure this +new feature will be caught at parse_pathspec() in commands that cannot +handle the new magic in some cases. grepping parse_pathspec() should +help. diff --git a/Documentation/technical/api-strbuf.txt b/Documentation/technical/api-strbuf.txt deleted file mode 100644 index 3350d97dda..0000000000 --- a/Documentation/technical/api-strbuf.txt +++ /dev/null @@ -1,319 +0,0 @@ -strbuf API -========== - -strbuf's are meant to be used with all the usual C string and memory -APIs. Given that the length of the buffer is known, it's often better to -use the mem* functions than a str* one (memchr vs. strchr e.g.). -Though, one has to be careful about the fact that str* functions often -stop on NULs and that strbufs may have embedded NULs. - -An strbuf is NUL terminated for convenience, but no function in the -strbuf API actually relies on the string being free of NULs. - -strbufs has some invariants that are very important to keep in mind: - -. The `buf` member is never NULL, so it can be used in any usual C -string operations safely. strbuf's _have_ to be initialized either by -`strbuf_init()` or by `= STRBUF_INIT` before the invariants, though. -+ -Do *not* assume anything on what `buf` really is (e.g. if it is -allocated memory or not), use `strbuf_detach()` to unwrap a memory -buffer from its strbuf shell in a safe way. That is the sole supported -way. This will give you a malloced buffer that you can later `free()`. -+ -However, it is totally safe to modify anything in the string pointed by -the `buf` member, between the indices `0` and `len-1` (inclusive). - -. The `buf` member is a byte array that has at least `len + 1` bytes - allocated. The extra byte is used to store a `'\0'`, allowing the - `buf` member to be a valid C-string. Every strbuf function ensure this - invariant is preserved. -+ -NOTE: It is OK to "play" with the buffer directly if you work it this - way: -+ ----- -strbuf_grow(sb, SOME_SIZE); <1> -strbuf_setlen(sb, sb->len + SOME_OTHER_SIZE); ----- -<1> Here, the memory array starting at `sb->buf`, and of length -`strbuf_avail(sb)` is all yours, and you can be sure that -`strbuf_avail(sb)` is at least `SOME_SIZE`. -+ -NOTE: `SOME_OTHER_SIZE` must be smaller or equal to `strbuf_avail(sb)`. -+ -Doing so is safe, though if it has to be done in many places, adding the -missing API to the strbuf module is the way to go. -+ -WARNING: Do _not_ assume that the area that is yours is of size `alloc -- 1` even if it's true in the current implementation. Alloc is somehow a -"private" member that should not be messed with. Use `strbuf_avail()` -instead. - -Data structures ---------------- - -* `struct strbuf` - -This is the string buffer structure. The `len` member can be used to -determine the current length of the string, and `buf` member provides access to -the string itself. - -Functions ---------- - -* Life cycle - -`strbuf_init`:: - - Initialize the structure. The second parameter can be zero or a bigger - number to allocate memory, in case you want to prevent further reallocs. - -`strbuf_release`:: - - Release a string buffer and the memory it used. You should not use the - string buffer after using this function, unless you initialize it again. - -`strbuf_detach`:: - - Detach the string from the strbuf and returns it; you now own the - storage the string occupies and it is your responsibility from then on - to release it with `free(3)` when you are done with it. - -`strbuf_attach`:: - - Attach a string to a buffer. You should specify the string to attach, - the current length of the string and the amount of allocated memory. - The amount must be larger than the string length, because the string you - pass is supposed to be a NUL-terminated string. This string _must_ be - malloc()ed, and after attaching, the pointer cannot be relied upon - anymore, and neither be free()d directly. - -`strbuf_swap`:: - - Swap the contents of two string buffers. - -* Related to the size of the buffer - -`strbuf_avail`:: - - Determine the amount of allocated but unused memory. - -`strbuf_grow`:: - - Ensure that at least this amount of unused memory is available after - `len`. This is used when you know a typical size for what you will add - and want to avoid repetitive automatic resizing of the underlying buffer. - This is never a needed operation, but can be critical for performance in - some cases. - -`strbuf_setlen`:: - - Set the length of the buffer to a given value. This function does *not* - allocate new memory, so you should not perform a `strbuf_setlen()` to a - length that is larger than `len + strbuf_avail()`. `strbuf_setlen()` is - just meant as a 'please fix invariants from this strbuf I just messed - with'. - -`strbuf_reset`:: - - Empty the buffer by setting the size of it to zero. - -* Related to the contents of the buffer - -`strbuf_rtrim`:: - - Strip whitespace from the end of a string. - -`strbuf_cmp`:: - - Compare two buffers. Returns an integer less than, equal to, or greater - than zero if the first buffer is found, respectively, to be less than, - to match, or be greater than the second buffer. - -* Adding data to the buffer - -NOTE: All of the functions in this section will grow the buffer as necessary. -If they fail for some reason other than memory shortage and the buffer hadn't -been allocated before (i.e. the `struct strbuf` was set to `STRBUF_INIT`), -then they will free() it. - -`strbuf_addch`:: - - Add a single character to the buffer. - -`strbuf_insert`:: - - Insert data to the given position of the buffer. The remaining contents - will be shifted, not overwritten. - -`strbuf_remove`:: - - Remove given amount of data from a given position of the buffer. - -`strbuf_splice`:: - - Remove the bytes between `pos..pos+len` and replace it with the given - data. - -`strbuf_add_commented_lines`:: - - Add a NUL-terminated string to the buffer. Each line will be prepended - by a comment character and a blank. - -`strbuf_add`:: - - Add data of given length to the buffer. - -`strbuf_addstr`:: - -Add a NUL-terminated string to the buffer. -+ -NOTE: This function will *always* be implemented as an inline or a macro -that expands to: -+ ----- -strbuf_add(..., s, strlen(s)); ----- -+ -Meaning that this is efficient to write things like: -+ ----- -strbuf_addstr(sb, "immediate string"); ----- - -`strbuf_addbuf`:: - - Copy the contents of an other buffer at the end of the current one. - -`strbuf_adddup`:: - - Copy part of the buffer from a given position till a given length to the - end of the buffer. - -`strbuf_expand`:: - - This function can be used to expand a format string containing - placeholders. To that end, it parses the string and calls the specified - function for every percent sign found. -+ -The callback function is given a pointer to the character after the `%` -and a pointer to the struct strbuf. It is expected to add the expanded -version of the placeholder to the strbuf, e.g. to add a newline -character if the letter `n` appears after a `%`. The function returns -the length of the placeholder recognized and `strbuf_expand()` skips -over it. -+ -The format `%%` is automatically expanded to a single `%` as a quoting -mechanism; callers do not need to handle the `%` placeholder themselves, -and the callback function will not be invoked for this placeholder. -+ -All other characters (non-percent and not skipped ones) are copied -verbatim to the strbuf. If the callback returned zero, meaning that the -placeholder is unknown, then the percent sign is copied, too. -+ -In order to facilitate caching and to make it possible to give -parameters to the callback, `strbuf_expand()` passes a context pointer, -which can be used by the programmer of the callback as she sees fit. - -`strbuf_expand_dict_cb`:: - - Used as callback for `strbuf_expand()`, expects an array of - struct strbuf_expand_dict_entry as context, i.e. pairs of - placeholder and replacement string. The array needs to be - terminated by an entry with placeholder set to NULL. - -`strbuf_addbuf_percentquote`:: - - Append the contents of one strbuf to another, quoting any - percent signs ("%") into double-percents ("%%") in the - destination. This is useful for literal data to be fed to either - strbuf_expand or to the *printf family of functions. - -`strbuf_humanise_bytes`:: - - Append the given byte size as a human-readable string (i.e. 12.23 KiB, - 3.50 MiB). - -`strbuf_addf`:: - - Add a formatted string to the buffer. - -`strbuf_commented_addf`:: - - Add a formatted string prepended by a comment character and a - blank to the buffer. - -`strbuf_fread`:: - - Read a given size of data from a FILE* pointer to the buffer. -+ -NOTE: The buffer is rewound if the read fails. If -1 is returned, -`errno` must be consulted, like you would do for `read(3)`. -`strbuf_read()`, `strbuf_read_file()` and `strbuf_getline()` has the -same behaviour as well. - -`strbuf_read`:: - - Read the contents of a given file descriptor. The third argument can be - used to give a hint about the file size, to avoid reallocs. - -`strbuf_read_file`:: - - Read the contents of a file, specified by its path. The third argument - can be used to give a hint about the file size, to avoid reallocs. - -`strbuf_readlink`:: - - Read the target of a symbolic link, specified by its path. The third - argument can be used to give a hint about the size, to avoid reallocs. - -`strbuf_getline`:: - - Read a line from a FILE *, overwriting the existing contents - of the strbuf. The second argument specifies the line - terminator character, typically `'\n'`. - Reading stops after the terminator or at EOF. The terminator - is removed from the buffer before returning. Returns 0 unless - there was nothing left before EOF, in which case it returns `EOF`. - -`strbuf_getwholeline`:: - - Like `strbuf_getline`, but keeps the trailing terminator (if - any) in the buffer. - -`strbuf_getwholeline_fd`:: - - Like `strbuf_getwholeline`, but operates on a file descriptor. - It reads one character at a time, so it is very slow. Do not - use it unless you need the correct position in the file - descriptor. - -`stripspace`:: - - Strip whitespace from a buffer. The second parameter controls if - comments are considered contents to be removed or not. - -`strbuf_split_buf`:: -`strbuf_split_str`:: -`strbuf_split_max`:: -`strbuf_split`:: - - Split a string or strbuf into a list of strbufs at a specified - terminator character. The returned substrings include the - terminator characters. Some of these functions take a `max` - parameter, which, if positive, limits the output to that - number of substrings. - -`strbuf_list_free`:: - - Free a list of strbufs (for example, the return values of the - `strbuf_split()` functions). - -`launch_editor`:: - - Launch the user preferred editor to edit a file and fill the buffer - with the file's contents upon the user completing their editing. The - third argument can be used to set the environment which the editor is - run in. If the buffer is NULL the editor is launched as usual but the - file's contents are not read into the buffer upon completion. diff --git a/Documentation/technical/api-string-list.txt b/Documentation/technical/api-string-list.txt index 20be348834..c08402b12e 100644 --- a/Documentation/technical/api-string-list.txt +++ b/Documentation/technical/api-string-list.txt @@ -29,7 +29,7 @@ member (you need this if you add things later) and you should set the `unsorted_string_list_has_string` and get it from the list using `string_list_lookup` for sorted lists. -. Can sort an unsorted list using `sort_string_list`. +. Can sort an unsorted list using `string_list_sort`. . Can remove duplicate items from a sorted list using `string_list_remove_duplicates`. @@ -68,6 +68,11 @@ Functions * General ones (works with sorted and unsorted lists as well) +`string_list_init`:: + + Initialize the members of the string_list, set `strdup_strings` + member according to the value of the second parameter. + `filter_string_list`:: Apply a function to each item in a list, retaining only the @@ -141,7 +146,7 @@ write `string_list_insert(...)->util = ...;`. ownership of a malloc()ed string to a `string_list` that has `strdup_string` set. -`sort_string_list`:: +`string_list_sort`:: Sort the list's entries by string value in `strcmp()` order. @@ -200,3 +205,5 @@ Represents the list itself. You should not tamper with it. . Setting the `strdup_strings` member to 1 will strdup() the strings before adding them, see above. +. The `compare_strings_fn` member is used to specify a custom compare + function, otherwise `strcmp()` is used as the default function. diff --git a/Documentation/technical/api-submodule-config.txt b/Documentation/technical/api-submodule-config.txt new file mode 100644 index 0000000000..941fa178dd --- /dev/null +++ b/Documentation/technical/api-submodule-config.txt @@ -0,0 +1,62 @@ +submodule config cache API +========================== + +The submodule config cache API allows to read submodule +configurations/information from specified revisions. Internally +information is lazily read into a cache that is used to avoid +unnecessary parsing of the same .gitmodule files. Lookups can be done by +submodule path or name. + +Usage +----- + +To initialize the cache with configurations from the worktree the caller +typically first calls `gitmodules_config()` to read values from the +worktree .gitmodules and then to overlay the local git config values +`parse_submodule_config_option()` from the config parsing +infrastructure. + +The caller can look up information about submodules by using the +`submodule_from_path()` or `submodule_from_name()` functions. They return +a `struct submodule` which contains the values. The API automatically +initializes and allocates the needed infrastructure on-demand. If the +caller does only want to lookup values from revisions the initialization +can be skipped. + +If the internal cache might grow too big or when the caller is done with +the API, all internally cached values can be freed with submodule_free(). + +Data Structures +--------------- + +`struct submodule`:: + + This structure is used to return the information about one + submodule for a certain revision. It is returned by the lookup + functions. + +Functions +--------- + +`void submodule_free()`:: + + Use these to free the internally cached values. + +`int parse_submodule_config_option(const char *var, const char *value)`:: + + Can be passed to the config parsing infrastructure to parse + local (worktree) submodule configurations. + +`const struct submodule *submodule_from_path(const unsigned char *commit_sha1, const char *path)`:: + + Lookup values for one submodule by its commit_sha1 and path. + +`const struct submodule *submodule_from_name(const unsigned char *commit_sha1, const char *name)`:: + + The same as above but lookup by name. + +If given the null_sha1 as commit_sha1 the local configuration of a +submodule will be returned (e.g. consolidated values from local git +configuration and the .gitmodules file in the worktree). + +For an example usage see test-submodule-config.c. diff --git a/Documentation/technical/api-trace.txt b/Documentation/technical/api-trace.txt new file mode 100644 index 0000000000..097a651d96 --- /dev/null +++ b/Documentation/technical/api-trace.txt @@ -0,0 +1,97 @@ +trace API +========= + +The trace API can be used to print debug messages to stderr or a file. Trace +code is inactive unless explicitly enabled by setting `GIT_TRACE*` environment +variables. + +The trace implementation automatically adds `timestamp file:line ... \n` to +all trace messages. E.g.: + +------------ +23:59:59.123456 git.c:312 trace: built-in: git 'foo' +00:00:00.000001 builtin/foo.c:99 foo: some message +------------ + +Data Structures +--------------- + +`struct trace_key`:: + + Defines a trace key (or category). The default (for API functions that + don't take a key) is `GIT_TRACE`. ++ +E.g. to define a trace key controlled by environment variable `GIT_TRACE_FOO`: ++ +------------ +static struct trace_key trace_foo = TRACE_KEY_INIT(FOO); + +static void trace_print_foo(const char *message) +{ + trace_print_key(&trace_foo, message); +} +------------ ++ +Note: don't use `const` as the trace implementation stores internal state in +the `trace_key` structure. + +Functions +--------- + +`int trace_want(struct trace_key *key)`:: + + Checks whether the trace key is enabled. Used to prevent expensive + string formatting before calling one of the printing APIs. + +`void trace_disable(struct trace_key *key)`:: + + Disables tracing for the specified key, even if the environment + variable was set. + +`void trace_printf(const char *format, ...)`:: +`void trace_printf_key(struct trace_key *key, const char *format, ...)`:: + + Prints a formatted message, similar to printf. + +`void trace_argv_printf(const char **argv, const char *format, ...)``:: + + Prints a formatted message, followed by a quoted list of arguments. + +`void trace_strbuf(struct trace_key *key, const struct strbuf *data)`:: + + Prints the strbuf, without additional formatting (i.e. doesn't + choke on `%` or even `\0`). + +`uint64_t getnanotime(void)`:: + + Returns nanoseconds since the epoch (01/01/1970), typically used + for performance measurements. ++ +Currently there are high precision timer implementations for Linux (using +`clock_gettime(CLOCK_MONOTONIC)`) and Windows (`QueryPerformanceCounter`). +Other platforms use `gettimeofday` as time source. + +`void trace_performance(uint64_t nanos, const char *format, ...)`:: +`void trace_performance_since(uint64_t start, const char *format, ...)`:: + + Prints the elapsed time (in nanoseconds), or elapsed time since + `start`, followed by a formatted message. Enabled via environment + variable `GIT_TRACE_PERFORMANCE`. Used for manual profiling, e.g.: ++ +------------ +uint64_t start = getnanotime(); +/* code section to measure */ +trace_performance_since(start, "foobar"); +------------ ++ +------------ +uint64_t t = 0; +for (;;) { + /* ignore */ + t -= getnanotime(); + /* code section to measure */ + t += getnanotime(); + /* ignore */ +} +trace_performance(t, "frotz"); +------------ diff --git a/Documentation/technical/bitmap-format.txt b/Documentation/technical/bitmap-format.txt new file mode 100644 index 0000000000..f8c18a0f7a --- /dev/null +++ b/Documentation/technical/bitmap-format.txt @@ -0,0 +1,164 @@ +GIT bitmap v1 format +==================== + + - A header appears at the beginning: + + 4-byte signature: {'B', 'I', 'T', 'M'} + + 2-byte version number (network byte order) + The current implementation only supports version 1 + of the bitmap index (the same one as JGit). + + 2-byte flags (network byte order) + + The following flags are supported: + + - BITMAP_OPT_FULL_DAG (0x1) REQUIRED + This flag must always be present. It implies that the bitmap + index has been generated for a packfile with full closure + (i.e. where every single object in the packfile can find + its parent links inside the same packfile). This is a + requirement for the bitmap index format, also present in JGit, + that greatly reduces the complexity of the implementation. + + - BITMAP_OPT_HASH_CACHE (0x4) + If present, the end of the bitmap file contains + `N` 32-bit name-hash values, one per object in the + pack. The format and meaning of the name-hash is + described below. + + 4-byte entry count (network byte order) + + The total count of entries (bitmapped commits) in this bitmap index. + + 20-byte checksum + + The SHA1 checksum of the pack this bitmap index belongs to. + + - 4 EWAH bitmaps that act as type indexes + + Type indexes are serialized after the hash cache in the shape + of four EWAH bitmaps stored consecutively (see Appendix A for + the serialization format of an EWAH bitmap). + + There is a bitmap for each Git object type, stored in the following + order: + + - Commits + - Trees + - Blobs + - Tags + + In each bitmap, the `n`th bit is set to true if the `n`th object + in the packfile is of that type. + + The obvious consequence is that the OR of all 4 bitmaps will result + in a full set (all bits set), and the AND of all 4 bitmaps will + result in an empty bitmap (no bits set). + + - N entries with compressed bitmaps, one for each indexed commit + + Where `N` is the total amount of entries in this bitmap index. + Each entry contains the following: + + - 4-byte object position (network byte order) + The position **in the index for the packfile** where the + bitmap for this commit is found. + + - 1-byte XOR-offset + The xor offset used to compress this bitmap. For an entry + in position `x`, a XOR offset of `y` means that the actual + bitmap representing this commit is composed by XORing the + bitmap for this entry with the bitmap in entry `x-y` (i.e. + the bitmap `y` entries before this one). + + Note that this compression can be recursive. In order to + XOR this entry with a previous one, the previous entry needs + to be decompressed first, and so on. + + The hard-limit for this offset is 160 (an entry can only be + xor'ed against one of the 160 entries preceding it). This + number is always positive, and hence entries are always xor'ed + with **previous** bitmaps, not bitmaps that will come afterwards + in the index. + + - 1-byte flags for this bitmap + At the moment the only available flag is `0x1`, which hints + that this bitmap can be re-used when rebuilding bitmap indexes + for the repository. + + - The compressed bitmap itself, see Appendix A. + +== Appendix A: Serialization format for an EWAH bitmap + +Ewah bitmaps are serialized in the same protocol as the JAVAEWAH +library, making them backwards compatible with the JGit +implementation: + + - 4-byte number of bits of the resulting UNCOMPRESSED bitmap + + - 4-byte number of words of the COMPRESSED bitmap, when stored + + - N x 8-byte words, as specified by the previous field + + This is the actual content of the compressed bitmap. + + - 4-byte position of the current RLW for the compressed + bitmap + +All words are stored in network byte order for their corresponding +sizes. + +The compressed bitmap is stored in a form of run-length encoding, as +follows. It consists of a concatenation of an arbitrary number of +chunks. Each chunk consists of one or more 64-bit words + + H L_1 L_2 L_3 .... L_M + +H is called RLW (run length word). It consists of (from lower to higher +order bits): + + - 1 bit: the repeated bit B + + - 32 bits: repetition count K (unsigned) + + - 31 bits: literal word count M (unsigned) + +The bitstream represented by the above chunk is then: + + - K repetitions of B + + - The bits stored in `L_1` through `L_M`. Within a word, bits at + lower order come earlier in the stream than those at higher + order. + +The next word after `L_M` (if any) must again be a RLW, for the next +chunk. For efficient appending to the bitstream, the EWAH stores a +pointer to the last RLW in the stream. + + +== Appendix B: Optional Bitmap Sections + +These sections may or may not be present in the `.bitmap` file; their +presence is indicated by the header flags section described above. + +Name-hash cache +--------------- + +If the BITMAP_OPT_HASH_CACHE flag is set, the end of the bitmap contains +a cache of 32-bit values, one per object in the pack. The value at +position `i` is the hash of the pathname at which the `i`th object +(counting in index order) in the pack can be found. This can be fed +into the delta heuristics to compare objects with similar pathnames. + +The hash algorithm used is: + + hash = 0; + while ((c = *name++)) + if (!isspace(c)) + hash = (hash >> 2) + (c << 24); + +Note that this hashing scheme is tied to the BITMAP_OPT_HASH_CACHE flag. +If implementations want to choose a different hashing scheme, they are +free to do so, but MUST allocate a new header flag (because comparing +hashes made under two different schemes would be pointless). diff --git a/Documentation/technical/http-protocol.txt b/Documentation/technical/http-protocol.txt new file mode 100644 index 0000000000..1c561bdd92 --- /dev/null +++ b/Documentation/technical/http-protocol.txt @@ -0,0 +1,507 @@ +HTTP transfer protocols +======================= + +Git supports two HTTP based transfer protocols. A "dumb" protocol +which requires only a standard HTTP server on the server end of the +connection, and a "smart" protocol which requires a Git aware CGI +(or server module). This document describes both protocols. + +As a design feature smart clients can automatically upgrade "dumb" +protocol URLs to smart URLs. This permits all users to have the +same published URL, and the peers automatically select the most +efficient transport available to them. + + +URL Format +---------- + +URLs for Git repositories accessed by HTTP use the standard HTTP +URL syntax documented by RFC 1738, so they are of the form: + + http://<host>:<port>/<path>?<searchpart> + +Within this documentation the placeholder `$GIT_URL` will stand for +the http:// repository URL entered by the end-user. + +Servers SHOULD handle all requests to locations matching `$GIT_URL`, as +both the "smart" and "dumb" HTTP protocols used by Git operate +by appending additional path components onto the end of the user +supplied `$GIT_URL` string. + +An example of a dumb client requesting for a loose object: + + $GIT_URL: http://example.com:8080/git/repo.git + URL request: http://example.com:8080/git/repo.git/objects/d0/49f6c27a2244e12041955e262a404c7faba355 + +An example of a smart request to a catch-all gateway: + + $GIT_URL: http://example.com/daemon.cgi?svc=git&q= + URL request: http://example.com/daemon.cgi?svc=git&q=/info/refs&service=git-receive-pack + +An example of a request to a submodule: + + $GIT_URL: http://example.com/git/repo.git/path/submodule.git + URL request: http://example.com/git/repo.git/path/submodule.git/info/refs + +Clients MUST strip a trailing `/`, if present, from the user supplied +`$GIT_URL` string to prevent empty path tokens (`//`) from appearing +in any URL sent to a server. Compatible clients MUST expand +`$GIT_URL/info/refs` as `foo/info/refs` and not `foo//info/refs`. + + +Authentication +-------------- + +Standard HTTP authentication is used if authentication is required +to access a repository, and MAY be configured and enforced by the +HTTP server software. + +Because Git repositories are accessed by standard path components +server administrators MAY use directory based permissions within +their HTTP server to control repository access. + +Clients SHOULD support Basic authentication as described by RFC 2617. +Servers SHOULD support Basic authentication by relying upon the +HTTP server placed in front of the Git server software. + +Servers SHOULD NOT require HTTP cookies for the purposes of +authentication or access control. + +Clients and servers MAY support other common forms of HTTP based +authentication, such as Digest authentication. + + +SSL +--- + +Clients and servers SHOULD support SSL, particularly to protect +passwords when relying on Basic HTTP authentication. + + +Session State +------------- + +The Git over HTTP protocol (much like HTTP itself) is stateless +from the perspective of the HTTP server side. All state MUST be +retained and managed by the client process. This permits simple +round-robin load-balancing on the server side, without needing to +worry about state management. + +Clients MUST NOT require state management on the server side in +order to function correctly. + +Servers MUST NOT require HTTP cookies in order to function correctly. +Clients MAY store and forward HTTP cookies during request processing +as described by RFC 2616 (HTTP/1.1). Servers SHOULD ignore any +cookies sent by a client. + + +General Request Processing +-------------------------- + +Except where noted, all standard HTTP behavior SHOULD be assumed +by both client and server. This includes (but is not necessarily +limited to): + +If there is no repository at `$GIT_URL`, or the resource pointed to by a +location matching `$GIT_URL` does not exist, the server MUST NOT respond +with `200 OK` response. A server SHOULD respond with +`404 Not Found`, `410 Gone`, or any other suitable HTTP status code +which does not imply the resource exists as requested. + +If there is a repository at `$GIT_URL`, but access is not currently +permitted, the server MUST respond with the `403 Forbidden` HTTP +status code. + +Servers SHOULD support both HTTP 1.0 and HTTP 1.1. +Servers SHOULD support chunked encoding for both request and response +bodies. + +Clients SHOULD support both HTTP 1.0 and HTTP 1.1. +Clients SHOULD support chunked encoding for both request and response +bodies. + +Servers MAY return ETag and/or Last-Modified headers. + +Clients MAY revalidate cached entities by including If-Modified-Since +and/or If-None-Match request headers. + +Servers MAY return `304 Not Modified` if the relevant headers appear +in the request and the entity has not changed. Clients MUST treat +`304 Not Modified` identical to `200 OK` by reusing the cached entity. + +Clients MAY reuse a cached entity without revalidation if the +Cache-Control and/or Expires header permits caching. Clients and +servers MUST follow RFC 2616 for cache controls. + + +Discovering References +---------------------- + +All HTTP clients MUST begin either a fetch or a push exchange by +discovering the references available on the remote repository. + +Dumb Clients +~~~~~~~~~~~~ + +HTTP clients that only support the "dumb" protocol MUST discover +references by making a request for the special info/refs file of +the repository. + +Dumb HTTP clients MUST make a `GET` request to `$GIT_URL/info/refs`, +without any search/query parameters. + + C: GET $GIT_URL/info/refs HTTP/1.0 + + S: 200 OK + S: + S: 95dcfa3633004da0049d3d0fa03f80589cbcaf31 refs/heads/maint + S: d049f6c27a2244e12041955e262a404c7faba355 refs/heads/master + S: 2cb58b79488a98d2721cea644875a8dd0026b115 refs/tags/v1.0 + S: a3c2e2402b99163d1d59756e5f207ae21cccba4c refs/tags/v1.0^{} + +The Content-Type of the returned info/refs entity SHOULD be +`text/plain; charset=utf-8`, but MAY be any content type. +Clients MUST NOT attempt to validate the returned Content-Type. +Dumb servers MUST NOT return a return type starting with +`application/x-git-`. + +Cache-Control headers MAY be returned to disable caching of the +returned entity. + +When examining the response clients SHOULD only examine the HTTP +status code. Valid responses are `200 OK`, or `304 Not Modified`. + +The returned content is a UNIX formatted text file describing +each ref and its known value. The file SHOULD be sorted by name +according to the C locale ordering. The file SHOULD NOT include +the default ref named `HEAD`. + + info_refs = *( ref_record ) + ref_record = any_ref / peeled_ref + + any_ref = obj-id HTAB refname LF + peeled_ref = obj-id HTAB refname LF + obj-id HTAB refname "^{}" LF + +Smart Clients +~~~~~~~~~~~~~ + +HTTP clients that support the "smart" protocol (or both the +"smart" and "dumb" protocols) MUST discover references by making +a parameterized request for the info/refs file of the repository. + +The request MUST contain exactly one query parameter, +`service=$servicename`, where `$servicename` MUST be the service +name the client wishes to contact to complete the operation. +The request MUST NOT contain additional query parameters. + + C: GET $GIT_URL/info/refs?service=git-upload-pack HTTP/1.0 + +dumb server reply: + + S: 200 OK + S: + S: 95dcfa3633004da0049d3d0fa03f80589cbcaf31 refs/heads/maint + S: d049f6c27a2244e12041955e262a404c7faba355 refs/heads/master + S: 2cb58b79488a98d2721cea644875a8dd0026b115 refs/tags/v1.0 + S: a3c2e2402b99163d1d59756e5f207ae21cccba4c refs/tags/v1.0^{} + +smart server reply: + + S: 200 OK + S: Content-Type: application/x-git-upload-pack-advertisement + S: Cache-Control: no-cache + S: + S: 001e# service=git-upload-pack\n + S: 004895dcfa3633004da0049d3d0fa03f80589cbcaf31 refs/heads/maint\0multi_ack\n + S: 0042d049f6c27a2244e12041955e262a404c7faba355 refs/heads/master\n + S: 003c2cb58b79488a98d2721cea644875a8dd0026b115 refs/tags/v1.0\n + S: 003fa3c2e2402b99163d1d59756e5f207ae21cccba4c refs/tags/v1.0^{}\n + +Dumb Server Response +^^^^^^^^^^^^^^^^^^^^ +Dumb servers MUST respond with the dumb server reply format. + +See the prior section under dumb clients for a more detailed +description of the dumb server response. + +Smart Server Response +^^^^^^^^^^^^^^^^^^^^^ +If the server does not recognize the requested service name, or the +requested service name has been disabled by the server administrator, +the server MUST respond with the `403 Forbidden` HTTP status code. + +Otherwise, smart servers MUST respond with the smart server reply +format for the requested service name. + +Cache-Control headers SHOULD be used to disable caching of the +returned entity. + +The Content-Type MUST be `application/x-$servicename-advertisement`. +Clients SHOULD fall back to the dumb protocol if another content +type is returned. When falling back to the dumb protocol clients +SHOULD NOT make an additional request to `$GIT_URL/info/refs`, but +instead SHOULD use the response already in hand. Clients MUST NOT +continue if they do not support the dumb protocol. + +Clients MUST validate the status code is either `200 OK` or +`304 Not Modified`. + +Clients MUST validate the first five bytes of the response entity +matches the regex `^[0-9a-f]{4}#`. If this test fails, clients +MUST NOT continue. + +Clients MUST parse the entire response as a sequence of pkt-line +records. + +Clients MUST verify the first pkt-line is `# service=$servicename`. +Servers MUST set $servicename to be the request parameter value. +Servers SHOULD include an LF at the end of this line. +Clients MUST ignore an LF at the end of the line. + +Servers MUST terminate the response with the magic `0000` end +pkt-line marker. + +The returned response is a pkt-line stream describing each ref and +its known value. The stream SHOULD be sorted by name according to +the C locale ordering. The stream SHOULD include the default ref +named `HEAD` as the first ref. The stream MUST include capability +declarations behind a NUL on the first ref. + + smart_reply = PKT-LINE("# service=$servicename" LF) + ref_list + "0000" + ref_list = empty_list / non_empty_list + + empty_list = PKT-LINE(zero-id SP "capabilities^{}" NUL cap-list LF) + + non_empty_list = PKT-LINE(obj-id SP name NUL cap_list LF) + *ref_record + + cap-list = capability *(SP capability) + capability = 1*(LC_ALPHA / DIGIT / "-" / "_") + LC_ALPHA = %x61-7A + + ref_record = any_ref / peeled_ref + any_ref = PKT-LINE(obj-id SP name LF) + peeled_ref = PKT-LINE(obj-id SP name LF) + PKT-LINE(obj-id SP name "^{}" LF + + +Smart Service git-upload-pack +------------------------------ +This service reads from the repository pointed to by `$GIT_URL`. + +Clients MUST first perform ref discovery with +`$GIT_URL/info/refs?service=git-upload-pack`. + + C: POST $GIT_URL/git-upload-pack HTTP/1.0 + C: Content-Type: application/x-git-upload-pack-request + C: + C: 0032want 0a53e9ddeaddad63ad106860237bbf53411d11a7\n + C: 0032have 441b40d833fdfa93eb2908e52742248faf0ee993\n + C: 0000 + + S: 200 OK + S: Content-Type: application/x-git-upload-pack-result + S: Cache-Control: no-cache + S: + S: ....ACK %s, continue + S: ....NAK + +Clients MUST NOT reuse or revalidate a cached response. +Servers MUST include sufficient Cache-Control headers +to prevent caching of the response. + +Servers SHOULD support all capabilities defined here. + +Clients MUST send at least one "want" command in the request body. +Clients MUST NOT reference an id in a "want" command which did not +appear in the response obtained through ref discovery unless the +server advertises capability `allow-tip-sha1-in-want` or +`allow-reachable-sha1-in-want`. + + compute_request = want_list + have_list + request_end + request_end = "0000" / "done" + + want_list = PKT-LINE(want NUL cap_list LF) + *(want_pkt) + want_pkt = PKT-LINE(want LF) + want = "want" SP id + cap_list = *(SP capability) SP + + have_list = *PKT-LINE("have" SP id LF) + +TODO: Document this further. + +The Negotiation Algorithm +~~~~~~~~~~~~~~~~~~~~~~~~~ +The computation to select the minimal pack proceeds as follows +(C = client, S = server): + +'init step:' + +C: Use ref discovery to obtain the advertised refs. + +C: Place any object seen into set `advertised`. + +C: Build an empty set, `common`, to hold the objects that are later + determined to be on both ends. + +C: Build a set, `want`, of the objects from `advertised` the client + wants to fetch, based on what it saw during ref discovery. + +C: Start a queue, `c_pending`, ordered by commit time (popping newest + first). Add all client refs. When a commit is popped from + the queue its parents SHOULD be automatically inserted back. + Commits MUST only enter the queue once. + +'one compute step:' + +C: Send one `$GIT_URL/git-upload-pack` request: + + C: 0032want <want #1>............................... + C: 0032want <want #2>............................... + .... + C: 0032have <common #1>............................. + C: 0032have <common #2>............................. + .... + C: 0032have <have #1>............................... + C: 0032have <have #2>............................... + .... + C: 0000 + +The stream is organized into "commands", with each command +appearing by itself in a pkt-line. Within a command line, +the text leading up to the first space is the command name, +and the remainder of the line to the first LF is the value. +Command lines are terminated with an LF as the last byte of +the pkt-line value. + +Commands MUST appear in the following order, if they appear +at all in the request stream: + +* "want" +* "have" + +The stream is terminated by a pkt-line flush (`0000`). + +A single "want" or "have" command MUST have one hex formatted +SHA-1 as its value. Multiple SHA-1s MUST be sent by sending +multiple commands. + +The `have` list is created by popping the first 32 commits +from `c_pending`. Less can be supplied if `c_pending` empties. + +If the client has sent 256 "have" commits and has not yet +received one of those back from `s_common`, or the client has +emptied `c_pending` it SHOULD include a "done" command to let +the server know it won't proceed: + + C: 0009done + +S: Parse the git-upload-pack request: + +Verify all objects in `want` are directly reachable from refs. + +The server MAY walk backwards through history or through +the reflog to permit slightly stale requests. + +If no "want" objects are received, send an error: +TODO: Define error if no "want" lines are requested. + +If any "want" object is not reachable, send an error: +TODO: Define error if an invalid "want" is requested. + +Create an empty list, `s_common`. + +If "have" was sent: + +Loop through the objects in the order supplied by the client. + +For each object, if the server has the object reachable from +a ref, add it to `s_common`. If a commit is added to `s_common`, +do not add any ancestors, even if they also appear in `have`. + +S: Send the git-upload-pack response: + +If the server has found a closed set of objects to pack or the +request ends with "done", it replies with the pack. +TODO: Document the pack based response + + S: PACK... + +The returned stream is the side-band-64k protocol supported +by the git-upload-pack service, and the pack is embedded into +stream 1. Progress messages from the server side MAY appear +in stream 2. + +Here a "closed set of objects" is defined to have at least +one path from every "want" to at least one "common" object. + +If the server needs more information, it replies with a +status continue response: +TODO: Document the non-pack response + +C: Parse the upload-pack response: + TODO: Document parsing response + +'Do another compute step.' + + +Smart Service git-receive-pack +------------------------------ +This service reads from the repository pointed to by `$GIT_URL`. + +Clients MUST first perform ref discovery with +`$GIT_URL/info/refs?service=git-receive-pack`. + + C: POST $GIT_URL/git-receive-pack HTTP/1.0 + C: Content-Type: application/x-git-receive-pack-request + C: + C: ....0a53e9ddeaddad63ad106860237bbf53411d11a7 441b40d833fdfa93eb2908e52742248faf0ee993 refs/heads/maint\0 report-status + C: 0000 + C: PACK.... + + S: 200 OK + S: Content-Type: application/x-git-receive-pack-result + S: Cache-Control: no-cache + S: + S: .... + +Clients MUST NOT reuse or revalidate a cached response. +Servers MUST include sufficient Cache-Control headers +to prevent caching of the response. + +Servers SHOULD support all capabilities defined here. + +Clients MUST send at least one command in the request body. +Within the command portion of the request body clients SHOULD send +the id obtained through ref discovery as old_id. + + update_request = command_list + "PACK" <binary data> + + command_list = PKT-LINE(command NUL cap_list LF) + *(command_pkt) + command_pkt = PKT-LINE(command LF) + cap_list = *(SP capability) SP + + command = create / delete / update + create = zero-id SP new_id SP name + delete = old_id SP zero-id SP name + update = old_id SP new_id SP name + +TODO: Document this further. + + +References +---------- + +http://www.ietf.org/rfc/rfc1738.txt[RFC 1738: Uniform Resource Locators (URL)] +http://www.ietf.org/rfc/rfc2616.txt[RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1] +link:technical/pack-protocol.html +link:technical/protocol-capabilities.html diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt index f352a9b22e..7392ff636c 100644 --- a/Documentation/technical/index-format.txt +++ b/Documentation/technical/index-format.txt @@ -129,6 +129,9 @@ Git index format (Version 4) In version 4, the padding after the pathname does not exist. + Interpretation of index entries in split index mode is completely + different. See below for details. + == Extensions === Cached tree @@ -198,3 +201,97 @@ Git index format - At most three 160-bit object names of the entry in stages from 1 to 3 (nothing is written for a missing stage). +=== Split index + + In split index mode, the majority of index entries could be stored + in a separate file. This extension records the changes to be made on + top of that to produce the final index. + + The signature for this extension is { 'l', 'i', 'n', 'k' }. + + The extension consists of: + + - 160-bit SHA-1 of the shared index file. The shared index file path + is $GIT_DIR/sharedindex.<SHA-1>. If all 160 bits are zero, the + index does not require a shared index file. + + - An ewah-encoded delete bitmap, each bit represents an entry in the + shared index. If a bit is set, its corresponding entry in the + shared index will be removed from the final index. Note, because + a delete operation changes index entry positions, but we do need + original positions in replace phase, it's best to just mark + entries for removal, then do a mass deletion after replacement. + + - An ewah-encoded replace bitmap, each bit represents an entry in + the shared index. If a bit is set, its corresponding entry in the + shared index will be replaced with an entry in this index + file. All replaced entries are stored in sorted order in this + index. The first "1" bit in the replace bitmap corresponds to the + first index entry, the second "1" bit to the second entry and so + on. Replaced entries may have empty path names to save space. + + The remaining index entries after replaced ones will be added to the + final index. These added entries are also sorted by entry name then + stage. + +== Untracked cache + + Untracked cache saves the untracked file list and necessary data to + verify the cache. The signature for this extension is { 'U', 'N', + 'T', 'R' }. + + The extension starts with + + - A sequence of NUL-terminated strings, preceded by the size of the + sequence in variable width encoding. Each string describes the + environment where the cache can be used. + + - Stat data of $GIT_DIR/info/exclude. See "Index entry" section from + ctime field until "file size". + + - Stat data of core.excludesfile + + - 32-bit dir_flags (see struct dir_struct) + + - 160-bit SHA-1 of $GIT_DIR/info/exclude. Null SHA-1 means the file + does not exist. + + - 160-bit SHA-1 of core.excludesfile. Null SHA-1 means the file does + not exist. + + - NUL-terminated string of per-dir exclude file name. This usually + is ".gitignore". + + - The number of following directory blocks, variable width + encoding. If this number is zero, the extension ends here with a + following NUL. + + - A number of directory blocks in depth-first-search order, each + consists of + + - The number of untracked entries, variable width encoding. + + - The number of sub-directory blocks, variable width encoding. + + - The directory name terminated by NUL. + + - A number of untracked file/dir names terminated by NUL. + +The remaining data of each directory block is grouped by type: + + - An ewah bitmap, the n-th bit marks whether the n-th directory has + valid untracked cache entries. + + - An ewah bitmap, the n-th bit records "check-only" bit of + read_directory_recursive() for the n-th directory. + + - An ewah bitmap, the n-th bit indicates whether SHA-1 and stat data + is valid for the n-th directory and exists in the next data. + + - An array of stat data. The n-th data corresponds with the n-th + "one" bit in the previous ewah bitmap. + + - An array of SHA-1. The n-th SHA-1 corresponds with the n-th "one" bit + in the previous ewah bitmap. + + - One NUL. diff --git a/Documentation/technical/pack-heuristics.txt b/Documentation/technical/pack-heuristics.txt index 8b7ae1c140..95a07db6e8 100644 --- a/Documentation/technical/pack-heuristics.txt +++ b/Documentation/technical/pack-heuristics.txt @@ -1,5 +1,5 @@ - Concerning Git's Packing Heuristics - =================================== +Concerning Git's Packing Heuristics +=================================== Oh, here's a really stupid question: @@ -366,12 +366,6 @@ been detailed! <linus> Yes, we always write out most recent first -For the other record: - - <pasky> njs`: http://pastebin.com/547965 - -The 'net never forgets, so that should be good until the end of time. - <njs`> And, yeah, I got the part about deeper-in-history stuff having worse IO characteristics, one sort of doesn't care. diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index b898e97988..4064fc796f 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -1,11 +1,11 @@ Packfile transfer protocols =========================== -Git supports transferring data in packfiles over the ssh://, git:// and +Git supports transferring data in packfiles over the ssh://, git://, http:// and file:// transports. There exist two sets of protocols, one for pushing data from a client to a server and another for fetching data from a -server to a client. All three transports (ssh, git, file) use the same -protocol to transfer data. +server to a client. The three transports (ssh, git, file) use the same +protocol to transfer data. http is documented in http-protocol.txt. The processes invoked in the canonical Git implementation are 'upload-pack' on the server side and 'fetch-pack' on the client side for fetching data; @@ -161,6 +161,7 @@ MUST peel the ref if it's an annotated tag. ---- advertised-refs = (no-refs / list-of-refs) + *shallow flush-pkt no-refs = PKT-LINE(zero-id SP "capabilities^{}" @@ -174,6 +175,8 @@ MUST peel the ref if it's an annotated tag. other-tip = obj-id SP refname LF other-peeled = obj-id SP refname "^{}" LF + shallow = PKT-LINE("shallow" SP obj-id) + capability-list = capability *(SP capability) capability = 1*(LC_ALPHA / DIGIT / "-" / "_") LC_ALPHA = %x61-7A @@ -209,9 +212,9 @@ out of what the server said it could do with the first 'want' line. want-list = first-want *additional-want - shallow-line = PKT_LINE("shallow" SP obj-id) + shallow-line = PKT-LINE("shallow" SP obj-id) - depth-request = PKT_LINE("deepen" SP depth) + depth-request = PKT-LINE("deepen" SP depth) first-want = PKT-LINE("want" SP obj-id SP capability-list LF) additional-want = PKT-LINE("want" SP obj-id LF) @@ -234,10 +237,10 @@ The client now sends the maximum commit history depth it wants for this transaction, which is the number of commits it wants from the tip of the history, if any, as a 'deepen' line. A depth of 0 is the same as not making a depth request. The client does not want to receive -any commits beyond this depth, nor objects needed only to complete -those commits. Commits whose parents are not received as a result are -defined as shallow and marked as such in the server. This information -is sent back to the client in the next step. +any commits beyond this depth, nor does it want objects needed only to +complete those commits. Commits whose parents are not received as a +result are defined as shallow and marked as such in the server. This +information is sent back to the client in the next step. Once all the 'want's and 'shallow's (and optional 'deepen') are transferred, clients MUST send a flush-pkt, to tell the server side @@ -335,7 +338,8 @@ during a prior round. This helps to ensure that at least one common ancestor is found before we give up entirely. Once the 'done' line is read from the client, the server will either -send a final 'ACK obj-id' or it will send a 'NAK'. The server only sends +send a final 'ACK obj-id' or it will send a 'NAK'. 'obj-id' is the object +name of the last commit determined to be common. The server only sends ACK after 'done' if there is at least one common base and multi_ack or multi_ack_detailed is enabled. The server always sends NAK after 'done' if there is no common base found. @@ -461,7 +465,9 @@ contain all the objects that the server will need to complete the new references. ---- - update-request = command-list [pack-file] + update-request = *shallow ( command-list | push-cert ) [packfile] + + shallow = PKT-LINE("shallow" SP obj-id LF) command-list = PKT-LINE(command NUL capability-list LF) *PKT-LINE(command LF) @@ -475,17 +481,32 @@ references. old-id = obj-id new-id = obj-id - pack-file = "PACK" 28*(OCTET) + push-cert = PKT-LINE("push-cert" NUL capability-list LF) + PKT-LINE("certificate version 0.1" LF) + PKT-LINE("pusher" SP ident LF) + PKT-LINE("pushee" SP url LF) + PKT-LINE("nonce" SP nonce LF) + PKT-LINE(LF) + *PKT-LINE(command LF) + *PKT-LINE(gpg-signature-lines LF) + PKT-LINE("push-cert-end" LF) + + packfile = "PACK" 28*(OCTET) ---- If the receiving end does not support delete-refs, the sending end MUST NOT ask for delete command. -The pack-file MUST NOT be sent if the only command used is 'delete'. +If the receiving end does not support push-cert, the sending end +MUST NOT send a push-cert command. When a push-cert command is +sent, command-list MUST NOT be sent; the commands recorded in the +push certificate is used instead. + +The packfile MUST NOT be sent if the only command used is 'delete'. -A pack-file MUST be sent if either create or update command is used, +A packfile MUST be sent if either create or update command is used, even if the server already has all the necessary objects. In this -case the client MUST send an empty pack-file. The only time this +case the client MUST send an empty packfile. The only time this is likely to happen is if the client is creating a new branch or a tag that points to an existing obj-id. @@ -495,6 +516,34 @@ was being processed (the obj-id is still the same as the old-id), and it will run any update hooks to make sure that the update is acceptable. If all of that is fine, the server will then update the references. +Push Certificate +---------------- + +A push certificate begins with a set of header lines. After the +header and an empty line, the protocol commands follow, one per +line. + +Currently, the following header fields are defined: + +`pusher` ident:: + Identify the GPG key in "Human Readable Name <email@address>" + format. + +`pushee` url:: + The repository URL (anonymized, if the URL contains + authentication material) the user who ran `git push` + intended to push into. + +`nonce` nonce:: + The 'nonce' string the receiving repository asked the + pushing user to include in the certificate, to prevent + replay attacks. + +The GPG signature lines are a detached signature for the contents +recorded in the push certificate before the signature block begins. +The detached signature is used to certify that the commands were +given by the pusher, who must be the signer. + Report Status ------------- diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt index fd8ffa5df3..eaab6b4ac7 100644 --- a/Documentation/technical/protocol-capabilities.txt +++ b/Documentation/technical/protocol-capabilities.txt @@ -18,8 +18,9 @@ was sent. Server MUST NOT ignore capabilities that client requested and server advertised. As a consequence of these rules, server MUST NOT advertise capabilities it does not understand. -The 'report-status', 'delete-refs', and 'quiet' capabilities are sent and -recognized by the receive-pack (push to server) process. +The 'atomic', 'report-status', 'delete-refs', 'quiet', and 'push-cert' +capabilities are sent and recognized by the receive-pack (push to server) +process. The 'ofs-delta' and 'side-band-64k' capabilities are sent and recognized by both upload-pack and receive-pack protocols. The 'agent' capability @@ -69,17 +70,50 @@ ends. Without multi_ack the client would have sent that c-b-a chain anyway, interleaved with S-R-Q. +multi_ack_detailed +------------------ +This is an extension of multi_ack that permits client to better +understand the server's in-memory state. See pack-protocol.txt, +section "Packfile Negotiation" for more information. + +no-done +------- +This capability should only be used with the smart HTTP protocol. If +multi_ack_detailed and no-done are both present, then the sender is +free to immediately send a pack following its first "ACK obj-id ready" +message. + +Without no-done in the smart HTTP protocol, the server session would +end and the client has to make another trip to send "done" before +the server can send the pack. no-done removes the last round and +thus slightly reduces latency. + thin-pack --------- -This capability means that the server can send a 'thin' pack, a pack -which does not contain base objects; if those base objects are available -on client side. Client requests 'thin-pack' capability when it -understands how to "thicken" it by adding required delta bases making -it self-contained. +A thin pack is one with deltas which reference base objects not +contained within the pack (but are known to exist at the receiving +end). This can reduce the network traffic significantly, but it +requires the receiving end to know how to "thicken" these packs by +adding the missing bases to the pack. -Client MUST NOT request 'thin-pack' capability if it cannot turn a thin -pack into a self-contained pack. +The upload-pack server advertises 'thin-pack' when it can generate +and send a thin pack. A client requests the 'thin-pack' capability +when it understands how to "thicken" it, notifying the server that +it can receive such a pack. A client MUST NOT request the +'thin-pack' capability if it cannot turn a thin pack into a +self-contained pack. + +Receive-pack, on the other hand, is assumed by default to be able to +handle thin packs, but can ask the client not to use the feature by +advertising the 'no-thin' capability. A client MUST NOT send a thin +pack if the server advertises the 'no-thin' capability. + +The reasons for this asymmetry are historical. The receive-pack +program did not exist until after the invention of thin packs, so +historically the reference implementation of receive-pack always +understood thin packs. Adding 'no-thin' later allowed receive-pack +to disable the feature in a backwards-compatible manner. side-band, side-band-64k @@ -135,7 +169,7 @@ agent capability). The `X` and `Y` strings may contain any printable ASCII characters except space (i.e., the byte range 32 < x < 127), and are typically of the form "package/version" (e.g., "git/1.8.3.1"). The agent strings are purely informative for statistics and debugging -purposes, and MUST NOT be used to programatically assume the presence +purposes, and MUST NOT be used to programmatically assume the presence or absence of particular features. shallow @@ -211,9 +245,33 @@ respond with the 'quiet' capability to suppress server-side progress reporting if the local progress reporting is also being suppressed (e.g., via `push -q`, or if stderr does not go to a tty). +atomic +------ + +If the server sends the 'atomic' capability it is capable of accepting +atomic pushes. If the pushing client requests this capability, the server +will update the refs in one atomic transaction. Either all refs are +updated or none. + allow-tip-sha1-in-want ---------------------- If the upload-pack server advertises this capability, fetch-pack may send "want" lines with SHA-1s that exist at the server but are not advertised by upload-pack. + +allow-reachable-sha1-in-want +---------------------------- + +If the upload-pack server advertises this capability, fetch-pack may +send "want" lines with SHA-1s that exist at the server but are not +advertised by upload-pack. + +push-cert=<nonce> +----------------- + +The receive-pack server that advertises this capability is willing +to accept a signed push certificate, and asks the <nonce> to be +included in the push certificate. A send-pack client MUST NOT +send a push-cert packet unless the receive-pack server advertises +this capability. diff --git a/Documentation/technical/protocol-common.txt b/Documentation/technical/protocol-common.txt index fb7ff084f8..889985f707 100644 --- a/Documentation/technical/protocol-common.txt +++ b/Documentation/technical/protocol-common.txt @@ -39,7 +39,7 @@ More specifically, they: caret `^`, colon `:`, question-mark `?`, asterisk `*`, or open bracket `[` anywhere. -. They cannot end with a slash `/` nor a dot `.`. +. They cannot end with a slash `/` or a dot `.`. . They cannot end with the sequence `.lock`. diff --git a/Documentation/technical/racy-git.txt b/Documentation/technical/racy-git.txt index 242a044db9..4a8be4d144 100644 --- a/Documentation/technical/racy-git.txt +++ b/Documentation/technical/racy-git.txt @@ -41,13 +41,17 @@ With a `USE_STDEV` compile-time option, `st_dev` is also compared, but this is not enabled by default because this member is not stable on network filesystems. With `USE_NSEC` compile-time option, `st_mtim.tv_nsec` and `st_ctim.tv_nsec` -members are also compared, but this is not enabled by default +members are also compared. On Linux, this is not enabled by default because in-core timestamps can have finer granularity than on-disk timestamps, resulting in meaningless changes when an inode is evicted from the inode cache. See commit 8ce13b0 of git://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git ([PATCH] Sync in core time granularity with filesystems, -2005-01-04). +2005-01-04). This patch is included in kernel 2.6.11 and newer, but +only fixes the issue for file systems with exactly 1 ns or 1 s +resolution. Other file systems are still broken in current Linux +kernels (e.g. CEPH, CIFS, NTFS, UDF), see +https://lkml.org/lkml/2015/6/9/714 Racy Git -------- diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt index fe723e4722..68978f5338 100644 --- a/Documentation/user-manual.txt +++ b/Documentation/user-manual.txt @@ -1,6 +1,5 @@ -Git User's Manual (for version 1.5.3 or newer) -______________________________________________ - +Git User Manual +=============== Git is a fast distributed revision control system. @@ -220,7 +219,7 @@ of development leading to that point. The best way to see how this works is using the linkgit:gitk[1] command; running gitk now on a Git repository and looking for merge -commits will help understand how the Git organizes history. +commits will help understand how Git organizes history. In the following, we say that commit X is "reachable" from commit Y if commit X is an ancestor of commit Y. Equivalently, you could say @@ -269,27 +268,23 @@ Creating, deleting, and modifying branches is quick and easy; here's a summary of the commands: `git branch`:: - list all branches + list all branches. `git branch <branch>`:: create a new branch named `<branch>`, referencing the same - point in history as the current branch + point in history as the current branch. `git branch <branch> <start-point>`:: create a new branch named `<branch>`, referencing `<start-point>`, which may be specified any way you like, - including using a branch name or a tag name + including using a branch name or a tag name. `git branch -d <branch>`:: - delete the branch `<branch>`; if the branch you are deleting - points to a commit which is not reachable from the current - branch, this command will fail with a warning. + delete the branch `<branch>`; if the branch is not fully + merged in its upstream branch or contained in the current branch, + this command will fail with a warning. `git branch -D <branch>`:: - even if the branch points to a commit not reachable - from the current branch, you may know that that commit - is still reachable from some other branch or tag. In that - case it is safe to use this command to force Git to delete - the branch. + delete the branch `<branch>` irrespective of its merged status. `git checkout <branch>`:: make the current branch `<branch>`, updating the working - directory to reflect the version referenced by `<branch>` + directory to reflect the version referenced by `<branch>`. `git checkout -b <new> <start-point>`:: create a new branch `<new>` referencing `<start-point>`, and check it out. @@ -313,10 +308,17 @@ referenced by a tag: ------------------------------------------------ $ git checkout v2.6.17 -Note: moving to "v2.6.17" which isn't a local branch -If you want to create a new branch from this checkout, you may do so -(now or later) by using -b with the checkout command again. Example: - git checkout -b <new_branch_name> +Note: checking out 'v2.6.17'. + +You are in 'detached HEAD' state. You can look around, make experimental +changes and commit them, and you can discard any commits you make in this +state without impacting any branches by performing another checkout. + +If you want to create a new branch to retain commits you create, you may +do so (now or later) by using -b with the checkout command again. Example: + + git checkout -b new_branch_name + HEAD is now at 427abfa... Linux v2.6.17 ------------------------------------------------ @@ -327,7 +329,7 @@ and git branch shows that you are no longer on a branch: $ cat .git/HEAD 427abfa28afedffadfca9dd8b067eb6d36bac53f $ git branch -* (no branch) +* (detached from v2.6.17) master ------------------------------------------------ @@ -414,12 +416,11 @@ REVISIONS" section of linkgit:gitrevisions[7]. Updating a repository with git fetch ------------------------------------ -Eventually the developer cloned from will do additional work in her -repository, creating new commits and advancing the branches to point -at the new commits. +After you clone a repository and commit a few changes of your own, you +may wish to check the original repository for updates. -The command `git fetch`, with no arguments, will update all of the -remote-tracking branches to the latest version found in her +The `git-fetch` command, with no arguments, will update all of the +remote-tracking branches to the latest version found in the original repository. It will not touch any of your own branches--not even the "master" branch that was created for you on clone. @@ -787,7 +788,7 @@ e05db0fd4f31dde7005f075a84f96b360d05984b ------------------------------------------------- Or you could recall that the `...` operator selects all commits -contained reachable from either one reference or the other but not +reachable from either one reference or the other but not both; so ------------------------------------------------- @@ -814,7 +815,7 @@ You could just visually inspect the commits since e05db0fd: $ gitk e05db0fd.. ------------------------------------------------- -Or you can use linkgit:git-name-rev[1], which will give the commit a +or you can use linkgit:git-name-rev[1], which will give the commit a name based on any tag it finds pointing to one of the commit's descendants: @@ -858,8 +859,8 @@ because it outputs only commits that are not reachable from v1.5.0-rc1. As yet another alternative, the linkgit:git-show-branch[1] command lists the commits reachable from its arguments with a display on the left-hand -side that indicates which arguments that commit is reachable from. So, -you can run something like +side that indicates which arguments that commit is reachable from. +So, if you run something like ------------------------------------------------- $ git show-branch e05db0fd v1.5.0-rc0 v1.5.0-rc1 v1.5.0-rc2 @@ -871,15 +872,15 @@ available ... ------------------------------------------------- -then search for a line that looks like +then a line like ------------------------------------------------- + ++ [e05db0fd] Fix warnings in sha1_file.c - use C99 printf format if available ------------------------------------------------- -Which shows that e05db0fd is reachable from itself, from v1.5.0-rc1, and -from v1.5.0-rc2, but not from v1.5.0-rc0. +shows that e05db0fd is reachable from itself, from v1.5.0-rc1, +and from v1.5.0-rc2, and not from v1.5.0-rc0. [[showing-commits-unique-to-a-branch]] Showing commits unique to a given branch @@ -1074,19 +1075,13 @@ produce no output at that point. Modifying the index is easy: -To update the index with the new contents of a modified file, use +To update the index with the contents of a new or modified file, use ------------------------------------------------- $ git add path/to/file ------------------------------------------------- -To add the contents of a new file to the index, use - -------------------------------------------------- -$ git add path/to/file -------------------------------------------------- - -To remove a file from the index and from the working tree, +To remove a file from the index and from the working tree, use ------------------------------------------------- $ git rm path/to/file @@ -1205,7 +1200,7 @@ for other users who clone your repository. If you wish the exclude patterns to affect only certain repositories (instead of every repository for a given project), you may instead put them in a file in your repository named `.git/info/exclude`, or in any -file specified by the `core.excludesfile` configuration variable. +file specified by the `core.excludesFile` configuration variable. Some Git commands can also take exclude patterns directly on the command line. See linkgit:gitignore[5] for the details. @@ -1787,7 +1782,7 @@ $ git pull . branch $ git merge branch ------------------------------------------------- -are roughly equivalent. The former is actually very commonly used. +are roughly equivalent. [[submitting-patches]] Submitting patches to a project @@ -1815,8 +1810,8 @@ manner. You can then import these into your mail client and send them by hand. However, if you have a lot to send at once, you may prefer to use the linkgit:git-send-email[1] script to automate the process. -Consult the mailing list for your project first to determine how they -prefer such patches be handled. +Consult the mailing list for your project first to determine +their requirements for submitting patches. [[importing-patches]] Importing patches to a project @@ -1977,7 +1972,7 @@ $ git clone http://yourserver.com/~you/proj.git ------------------------------------------------- (See also -link:howto/setup-git-server-over-http.txt[setup-git-server-over-http] +link:howto/setup-git-server-over-http.html[setup-git-server-over-http] for a slightly more sophisticated setup using WebDAV which also allows pushing over HTTP.) @@ -2249,23 +2244,23 @@ commit to this branch. $ ... patch ... test ... commit [ ... patch ... test ... commit ]* ------------------------------------------------- -When you are happy with the state of this change, you can pull it into the +When you are happy with the state of this change, you can merge it into the "test" branch in preparation to make it public: ------------------------------------------------- -$ git checkout test && git pull . speed-up-spinlocks +$ git checkout test && git merge speed-up-spinlocks ------------------------------------------------- It is unlikely that you would have any conflicts here ... but you might if you spent a while on this step and had also pulled new versions from upstream. -Some time later when enough time has passed and testing done, you can pull the +Sometime later when enough time has passed and testing done, you can pull the same branch into the `release` tree ready to go upstream. This is where you see the value of keeping each patch (or patch series) in its own branch. It means that the patches can be moved into the `release` tree in any order. ------------------------------------------------- -$ git checkout release && git pull . speed-up-spinlocks +$ git checkout release && git merge speed-up-spinlocks ------------------------------------------------- After a while, you will have a number of branches, and despite the @@ -3191,23 +3186,21 @@ those "loose" objects. You can save space and make Git faster by moving these loose objects in to a "pack file", which stores a group of objects in an efficient compressed format; the details of how pack files are formatted can be -found in link:technical/pack-format.txt[technical/pack-format.txt]. +found in link:technical/pack-format.html[pack format]. To put the loose objects into a pack, just run git repack: ------------------------------------------------ $ git repack -Generating pack... -Done counting 6020 objects. -Deltifying 6020 objects. - 100% (6020/6020) done -Writing 6020 objects. - 100% (6020/6020) done -Total 6020, written 6020 (delta 4070), reused 0 (delta 0) -Pack pack-3e54ad29d5b2e05838c75df582c65257b8d08e1c created. +Counting objects: 6020, done. +Delta compression using up to 4 threads. +Compressing objects: 100% (6020/6020), done. +Writing objects: 100% (6020/6020), done. +Total 6020 (delta 4070), reused 0 (delta 0) ------------------------------------------------ -You can then run +This creates a single "pack file" in .git/objects/pack/ +containing all currently unpacked objects. You can then run ------------------------------------------------ $ git prune @@ -3305,17 +3298,11 @@ state, you can just prune all unreachable objects: $ git prune ------------------------------------------------ -and they'll be gone. But you should only run `git prune` on a quiescent +and they'll be gone. (You should only run `git prune` on a quiescent repository--it's kind of like doing a filesystem fsck recovery: you don't want to do that while the filesystem is mounted. - -(The same is true of `git fsck` itself, btw, but since -`git fsck` never actually *changes* the repository, it just reports -on what it found, `git fsck` itself is never 'dangerous' to run. -Running it while somebody is actually changing the repository can cause -confusing and scary messages, but it won't actually do anything bad. In -contrast, running `git prune` while somebody is actively changing the -repository is a *BAD* idea). +`git prune` is designed not to cause any harm in such cases of concurrent +accesses to a repository but you might receive confusing or scary messages.) [[recovering-from-repository-corruption]] Recovering from repository corruption @@ -3538,7 +3525,7 @@ with Git 1.5.2 can look up the submodule commits in the repository and manually check them out; earlier versions won't recognize the submodules at all. -To see how submodule support works, create (for example) four example +To see how submodule support works, create four example repositories that can be used later as a submodule: ------------------------------------------------- @@ -3640,7 +3627,7 @@ working on a branch. ------------------------------------------------- $ git branch -* (no branch) +* (detached from d266b98) master ------------------------------------------------- @@ -3807,7 +3794,7 @@ like so: $ git update-index filename ------------------------------------------------- -but to avoid common mistakes with filename globbing etc, the command +but to avoid common mistakes with filename globbing etc., the command will not normally add totally new entries or remove old entries, i.e. it will normally just update existing cache entries. @@ -3910,7 +3897,7 @@ fact that such a commit brings together ("merges") two or more previous states represented by other commits. In other words, while a "tree" represents a particular directory state -of a working directory, a "commit" represents that state in "time", +of a working directory, a "commit" represents that state in time, and explains how we got there. You create a commit object by giving it the tree that describes the @@ -3930,8 +3917,7 @@ save the note about that state, in practice we tend to just write the result to the file pointed at by `.git/HEAD`, so that we can always see what the last committed state was. -Here is an ASCII art by Jon Loeliger that illustrates how -various pieces fit together. +Here is a picture that illustrates how various pieces fit together: ------------ @@ -4010,27 +3996,26 @@ to see what the top commit was. Merging multiple trees ---------------------- -Git helps you do a three-way merge, which you can expand to n-way by -repeating the merge procedure arbitrary times until you finally -"commit" the state. The normal situation is that you'd only do one -three-way merge (two parents), and commit it, but if you like to, you -can do multiple parents in one go. +Git can help you perform a three-way merge, which can in turn be +used for a many-way merge by repeating the merge procedure several +times. The usual situation is that you only do one three-way merge +(reconciling two lines of history) and commit the result, but if +you like to, you can merge several branches in one go. -To do a three-way merge, you need the two sets of "commit" objects -that you want to merge, use those to find the closest common parent (a -third "commit" object), and then use those commit objects to find the -state of the directory ("tree" object) at these points. +To perform a three-way merge, you start with the two commits you +want to merge, find their closest common parent (a third commit), +and compare the trees corresponding to these three commits. -To get the "base" for the merge, you first look up the common parent -of two commits with +To get the "base" for the merge, look up the common parent of two +commits: ------------------------------------------------- $ git merge-base <commit1> <commit2> ------------------------------------------------- -which will return you the commit they are both based on. You should -now look up the "tree" objects of those commits, which you can easily -do with (for example) +This prints the name of a commit they are both based on. You should +now look up the tree objects of those commits, which you can easily +do with ------------------------------------------------- $ git cat-file commit <commitname> | head -1 @@ -4088,7 +4073,7 @@ the `HEAD` tree, and stage 3 to the `$target` tree. Earlier we said that trivial merges are done inside `git read-tree -m`. For example, if the file did not change -from `$orig` to `HEAD` nor `$target`, or if the file changed +from `$orig` to `HEAD` or `$target`, or if the file changed from `$orig` to `HEAD` and `$orig` to `$target` the same way, obviously the final outcome is what is in `HEAD`. What the above example shows is that file `hello.c` was changed from @@ -4152,8 +4137,6 @@ about the data in the object. It's worth noting that the SHA-1 hash that is used to name the object is the hash of the original data plus this header, so `sha1sum` 'file' does not match the object name for 'file'. -(Historical note: in the dawn of the age of Git the hash -was the SHA-1 of the 'compressed' object.) As a result, the general consistency of an object can always be tested independently of the contents or the type of the object: all objects can @@ -4247,9 +4230,9 @@ Most of what `git rev-list` did is contained in `revision.c` and controls how and what revisions are walked, and more. The original job of `git rev-parse` is now taken by the function -`setup_revisions()`, which parses the revisions and the common command line +`setup_revisions()`, which parses the revisions and the common command-line options for the revision walker. This information is stored in the struct -`rev_info` for later consumption. You can do your own command line option +`rev_info` for later consumption. You can do your own command-line option parsing after calling `setup_revisions()`. After that, you have to call `prepare_revision_walk()` for initialization, and then you can get the commits one by one with the function `get_revision()`. |