diff options
Diffstat (limited to 'Documentation')
42 files changed, 1236 insertions, 209 deletions
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index 894546dd75..2dd35bd1b8 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." @@ -413,6 +413,29 @@ Error Messages - 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 diff --git a/Documentation/Makefile b/Documentation/Makefile index 2f6b6aabd7..3e39e2815b 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -103,7 +103,7 @@ ASCIIDOC_HTML = xhtml11 ASCIIDOC_DOCBOOK = docbook ASCIIDOC_CONF = -f asciidoc.conf ASCIIDOC_COMMON = $(ASCIIDOC) $(ASCIIDOC_EXTRA) $(ASCIIDOC_CONF) \ - -agit-version=$(GIT_VERSION) + -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 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/SubmittingPatches b/Documentation/SubmittingPatches index fa71b5f0b6..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 @@ -135,6 +136,11 @@ 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 @@ -175,8 +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 @@ -254,15 +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. diff --git a/Documentation/config.txt b/Documentation/config.txt index 9335ff2ae2..1a8ddb41c7 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. +and `-`, and must start with an alphabetic character. -Leading and trailing whitespace in a variable value is discarded. -Internal whitespace within a variable value is retained verbatim. +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. -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". - -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). 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 ~~~~~~~~ @@ -126,6 +116,61 @@ 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 ~~~~~~~~~ @@ -375,14 +420,19 @@ 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 @@ -678,14 +728,13 @@ 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. @@ -842,18 +891,6 @@ 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. -+ -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). color.diff:: Whether to use ANSI escape sequences to add color to patches. @@ -873,8 +910,7 @@ color.diff.<slot>:: of `plain` (context text), `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 @@ -911,8 +947,6 @@ color.grep.<slot>:: 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 @@ -925,8 +959,7 @@ 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 @@ -950,10 +983,10 @@ 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 @@ -1733,6 +1766,13 @@ 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 @@ -1953,7 +1993,7 @@ pack.useBitmaps:: true. You should not generally need to turn this off unless you are debugging pack bitmaps. -pack.writebitmaps:: +pack.writebitmaps (deprecated):: This is a deprecated synonym for `repack.writeBitmaps`. pack.writeBitmapHashCache:: @@ -2144,6 +2184,13 @@ 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 +directory (must be clean) 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. receive.denyNonFastForwards:: If set to true, git-receive-pack will deny a ref update which is @@ -2283,7 +2330,7 @@ sendemail.smtpencryption:: See linkgit:git-send-email[1] for description. Note that this setting is not subject to the 'identity' mechanism. -sendemail.smtpssl:: +sendemail.smtpssl (deprecated):: Deprecated alias for 'sendemail.smtpencryption = ssl'. sendemail.smtpsslcertpath:: @@ -2318,10 +2365,12 @@ 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:: @@ -2386,12 +2435,16 @@ status.submodulesummary:: 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 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/git-add.txt b/Documentation/git-add.txt index 9631526110..1c74907dd4 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>...] diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt index d4ef16c16a..0d8ba48f79 100644 --- a/Documentation/git-am.txt +++ b/Documentation/git-am.txt @@ -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. diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt index f605327946..9489664cfa 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 ----------- @@ -229,6 +229,16 @@ 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 ------------- diff --git a/Documentation/git-check-ignore.txt b/Documentation/git-check-ignore.txt index ee2e091704..788a011580 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:: diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index 1c03c792b0..1147c71da6 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -131,7 +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-clean.txt b/Documentation/git-clean.txt index 94b6d19cf2..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:: diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 0363d0039b..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>] @@ -98,7 +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:: diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index f71fb0134b..690fed3ea4 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -507,10 +507,6 @@ 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 `<commit-ish>` is any of the commit specification expressions also accepted by `from` (see above). diff --git a/Documentation/git-imap-send.txt b/Documentation/git-imap-send.txt index c7c0d21429..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 ------------- @@ -75,7 +97,9 @@ imap.preformattedHTML:: imap.authMethod:: Specify authenticate method for authentication with IMAP server. - Current supported method is 'CRAM-MD5' only. If this is not set + 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 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-notes.txt b/Documentation/git-notes.txt index 310f0a5e8c..851518d531 100644 --- a/Documentation/git-notes.txt +++ b/Documentation/git-notes.txt @@ -9,10 +9,10 @@ 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 --commit [-v | -q] @@ -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 @@ -287,7 +291,7 @@ 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` diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index d2d8f4792a..c2f76fb1ea 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 @@ -190,6 +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-pull.txt b/Documentation/git-pull.txt index 200eb22260..4064452b06 100644 --- a/Documentation/git-pull.txt +++ b/Documentation/git-pull.txt @@ -111,9 +111,8 @@ include::merge-options.txt[] was rebased since last fetched, the rebase uses that information to avoid rebasing non-local changes. + -When preserve, also rebase the current branch on top of the upstream -branch, but pass `--preserve-merges` along to `git rebase` so that -locally created merge commits will not be flattened. +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. + diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index b17283ab7a..3593774495 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -149,9 +149,8 @@ already exists on the remote side. Usually, "git push" refuses to update a remote ref that is not an ancestor of the local ref used to overwrite it. + -This option bypasses the check, but instead requires that the -current value of the ref to be the expected value. "git push" -fails otherwise. +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 @@ -163,15 +162,14 @@ 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 you update the ref while -making sure that your earlier "lease" is still valid). +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, unless specified with a `--force-with-lease=<refname>:<expect>` -option that explicitly states what the expected value is. +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 @@ -214,22 +212,8 @@ 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 -+ --------------------------- -git push public #1 -git push --repo=public #2 --------------------------- -+ -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'. + This option is equivalent to the <repository> argument. If both + are specified, the command-line argument takes precedence. -u:: --set-upstream:: diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 924827dc2e..c8ab48d6aa 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -362,7 +362,9 @@ default is `--no-fork-point`, otherwise the default is `--fork-point`. -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 diff --git a/Documentation/git-remote.txt b/Documentation/git-remote.txt index cb103c8b6f..4c6d6de7b7 100644 --- a/Documentation/git-remote.txt +++ b/Documentation/git-remote.txt @@ -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>` @@ -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-rev-list.txt b/Documentation/git-rev-list.txt index fd7f8b5bc1..5b119220bf 100644 --- a/Documentation/git-rev-list.txt +++ b/Documentation/git-rev-list.txt @@ -46,7 +46,8 @@ SYNOPSIS [ \--extended-regexp | -E ] [ \--fixed-strings | -F ] [ \--date=(local|relative|default|iso|iso-strict|rfc|short) ] - [ [\--objects | \--objects-edge] [ \--unpacked ] ] + [ [ \--objects | \--objects-edge | \--objects-edge-aggressive ] + [ \--unpacked ] ] [ \--pretty | \--header ] [ \--bisect ] [ \--bisect-vars ] diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt index a60776eb57..f248a8665e 100644 --- a/Documentation/git-send-email.txt +++ b/Documentation/git-send-email.txt @@ -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 ~~~~~~~ @@ -199,10 +214,15 @@ 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'; diff --git a/Documentation/git-stripspace.txt b/Documentation/git-stripspace.txt index c87bfcb674..6c6e989074 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 ----------- diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt index 8e6af65da0..2c25916f8f 100644 --- a/Documentation/git-submodule.txt +++ b/Documentation/git-submodule.txt @@ -154,27 +154,51 @@ 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 @@ -238,10 +262,12 @@ 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 @@ -302,7 +328,7 @@ the submodule itself. 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 - `merge`, `rebase` or `none`. + a value other than `checkout`. If the key `submodule.$name.update` is either not explicitly set or set to `checkout`, this option is implicit. diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index 929869b0a0..aff01798cd 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -82,20 +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, diff --git a/Documentation/git.txt b/Documentation/git.txt index edceb50866..085bc34eb1 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -43,6 +43,17 @@ unreleased) version of Git, that is available from the 'master' branch of the `git.git` repository. Documentation for older releases are available here: +* link:v2.3.6/git.html[documentation for release 2.3.6] + +* release notes for + 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 @@ -760,7 +771,8 @@ Git so take care if using Cogito etc. '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 [23] is used. + 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 @@ -887,19 +899,21 @@ 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. +`$GIT_SSH` on the other hand must be just the path to a program +(which can be a wrapper shell script, if additional arguments are +needed). + Usually it is easier to configure any desired options through your personal `.ssh/config` file. Please consult your ssh documentation @@ -912,6 +926,10 @@ for further details. and read the password from its STDOUT. See also the 'core.askpass' option in linkgit:git-config[1]. +'GIT_TERMINAL_PROMPT':: + If this environment variable is set to `0`, git will not prompt + on the terminal (e.g., when asking for HTTP authentication). + 'GIT_CONFIG_NOSYSTEM':: Whether to skip reading settings from the system-wide `$(prefix)/etc/gitconfig` file. This environment variable can @@ -1012,6 +1030,17 @@ GIT_ICASE_PATHSPECS:: 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]] ------------------------ diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt index 09e82c31bd..4fd04423e9 100644 --- a/Documentation/gitignore.txt +++ b/Documentation/gitignore.txt @@ -138,9 +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'. @@ -203,7 +200,6 @@ everything within `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/gitmodules.txt b/Documentation/gitmodules.txt index f6c0dfd029..ac70eca321 100644 --- a/Documentation/gitmodules.txt +++ b/Documentation/gitmodules.txt @@ -38,18 +38,15 @@ submodule.<name>.url:: 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. diff --git a/Documentation/gitweb.conf.txt b/Documentation/gitweb.conf.txt index ebe7a6c24c..b96ac72a33 100644 --- a/Documentation/gitweb.conf.txt +++ b/Documentation/gitweb.conf.txt @@ -482,7 +482,7 @@ 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. diff --git a/Documentation/howto/recover-corrupted-object-harder.txt b/Documentation/howto/recover-corrupted-object-harder.txt index 23e685d8ca..9c4cd0915f 100644 --- a/Documentation/howto/recover-corrupted-object-harder.txt +++ b/Documentation/howto/recover-corrupted-object-harder.txt @@ -240,3 +240,240 @@ 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/rev-list-options.txt b/Documentation/rev-list-options.txt index afccfdc23a..97ef2e8e71 100644 --- a/Documentation/rev-list-options.txt +++ b/Documentation/rev-list-options.txt @@ -172,11 +172,6 @@ explicitly. Pretend as if all objects mentioned by reflogs are listed on the command line as `<commit>`. ---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. - --ignore-missing:: Upon seeing an invalid object name in the input, pretend as if the bad input was not given. @@ -644,6 +639,7 @@ 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 @@ -653,13 +649,24 @@ These options are mostly targeted for packing of Git repositories. --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 + 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. +--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. + --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. 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-string-list.txt b/Documentation/technical/api-string-list.txt index d51a6579c8..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`. @@ -146,7 +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. diff --git a/Documentation/technical/index-format.txt b/Documentation/technical/index-format.txt index 1250b5ca8b..35112e4966 100644 --- a/Documentation/technical/index-format.txt +++ b/Documentation/technical/index-format.txt @@ -207,7 +207,7 @@ Git index format 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 signature for this extension is { 'l', 'i', 'n', 'k' }. The extension consists of: |