diff options
Diffstat (limited to 'Documentation')
30 files changed, 812 insertions, 145 deletions
diff --git a/Documentation/RelNotes/2.12.1.txt b/Documentation/RelNotes/2.12.1.txt new file mode 100644 index 0000000000..a74f7db747 --- /dev/null +++ b/Documentation/RelNotes/2.12.1.txt @@ -0,0 +1,41 @@ +Git v2.12.1 Release Notes +========================= + +Fixes since v2.12 +----------------- + + * Reduce authentication round-trip over HTTP when the server supports + just a single authentication method. This also improves the + behaviour when Git is misconfigured to enable http.emptyAuth + against a server that does not authenticate without a username + (i.e. not using Kerberos etc., which makes http.emptyAuth + pointless). + + * Windows port wants to use OpenSSL's implementation of SHA-1 + routines, so let them. + + * Add 32-bit Linux variant to the set of platforms to be tested with + Travis CI. + + * When a redirected http transport gets an error during the + redirected request, we ignored the error we got from the server, + and ended up giving a not-so-useful error message. + + * The patch subcommand of "git add -i" was meant to have paths + selection prompt just like other subcommand, unlike "git add -p" + directly jumps to hunk selection. Recently, this was broken and + "add -i" lost the paths selection dialog, but it now has been + fixed. + + * Git v2.12 was shipped with an embarrassing breakage where various + operations that verify paths given from the user stopped dying when + seeing an issue, and instead later triggering segfault. + + * The code to parse "git log -L..." command line was buggy when there + are many ranges specified with -L; overrun of the allocated buffer + has been fixed. + + * The command-line parsing of "git log -L" copied internal data + structures using incorrect size on ILP32 systems. + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.12.2.txt b/Documentation/RelNotes/2.12.2.txt new file mode 100644 index 0000000000..441939709c --- /dev/null +++ b/Documentation/RelNotes/2.12.2.txt @@ -0,0 +1,83 @@ +Git v2.12.2 Release Notes +========================= + +Fixes since v2.12.1 +------------------- + + * "git status --porcelain" is supposed to give a stable output, but a + few strings were left as translatable by mistake. + + * "Dumb http" transport used to misparse a nonsense http-alternates + response, which has been fixed. + + * "git diff --quiet" relies on the size field in diff_filespec to be + correctly populated, but diff_populate_filespec() helper function + made an incorrect short-cut when asked only to populate the size + field for paths that need to go through convert_to_git() (e.g. CRLF + conversion). + + * There is no need for Python only to give a few messages to the + standard error stream, but we somehow did. + + * A leak in a codepath to read from a packed object in (rare) cases + has been plugged. + + * "git upload-pack", which is a counter-part of "git fetch", did not + report a request for a ref that was not advertised as invalid. + This is generally not a problem (because "git fetch" will stop + before making such a request), but is the right thing to do. + + * A "gc.log" file left by a backgrounded "gc --auto" disables further + automatic gc; it has been taught to run at least once a day (by + default) by ignoring a stale "gc.log" file that is too old. + + * "git remote rm X", when a branch has remote X configured as the + value of its branch.*.remote, tried to remove branch.*.remote and + branch.*.merge and failed if either is unset. + + * A caller of tempfile API that uses stdio interface to write to + files may ignore errors while writing, which is detected when + tempfile is closed (with a call to ferror()). By that time, the + original errno that may have told us what went wrong is likely to + be long gone and was overwritten by an irrelevant value. + close_tempfile() now resets errno to EIO to make errno at least + predictable. + + * "git show-branch" expected there were only very short branch names + in the repository and used a fixed-length buffer to hold them + without checking for overflow. + + * The code that parses header fields in the commit object has been + updated for (micro)performance and code hygiene. + + * A test that creates a confusing branch whose name is HEAD has been + corrected not to do so. + + * "Cc:" on the trailer part does not have to conform to RFC strictly, + unlike in the e-mail header. "git send-email" has been updated to + ignore anything after '>' when picking addresses, to allow non-address + cruft like " # stable 4.4" after the address. + + * "git push" had a handful of codepaths that could lead to a deadlock + when unexpected error happened, which has been fixed. + + * Code to read submodule.<name>.ignore config did not state the + variable name correctly when giving an error message diagnosing + misconfiguration. + + * "git ls-remote" and "git archive --remote" are designed to work + without being in a directory under Git's control. However, recent + updates revealed that we randomly look into a directory called + .git/ without actually doing necessary set-up when working in a + repository. Stop doing so. + + * The code to parse the command line "git grep <patterns>... <rev> + [[--] <pathspec>...]" has been cleaned up, and a handful of bugs + have been fixed (e.g. we used to check "--" if it is a rev). + + * The code to parse "git -c VAR=VAL cmd" and set configuration + variable for the duration of cmd had two small bugs, which have + been fixed. + This supersedes jc/config-case-cmdline topic that has been discarded. + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.12.3.txt b/Documentation/RelNotes/2.12.3.txt new file mode 100644 index 0000000000..73ce7daa5c --- /dev/null +++ b/Documentation/RelNotes/2.12.3.txt @@ -0,0 +1,57 @@ +Git v2.12.3 Release Notes +========================= + +Fixes since v2.12.2 +------------------- + + * The "parse_config_key()" API function has been cleaned up. + + * An helper function to make it easier to append the result from + real_path() to a strbuf has been added. + + * The t/perf performance test suite was not prepared to test not so + old versions of Git, but now it covers versions of Git that are not + so ancient. + + * Picking two versions of Git and running tests to make sure the + older one and the newer one interoperate happily has now become + possible. + + * Teach the "debug" helper used in the test framework that allows a + command to run under "gdb" to make the session interactive. + + * "git repack --depth=<n>" for a long time busted the specified depth + when reusing delta from existing packs. This has been corrected. + + * user.email that consists of only cruft chars should consistently + error out, but didn't. + + * A few tests were run conditionally under (rare) conditions where + they cannot be run (like running cvs tests under 'root' account). + + * "git branch @" created refs/heads/@ as a branch, and in general the + code that handled @{-1} and @{upstream} was a bit too loose in + disambiguating. + + * "git fetch" that requests a commit by object name, when the other + side does not allow such an request, failed without much + explanation. + + * "git filter-branch --prune-empty" drops a single-parent commit that + becomes a no-op, but did not drop a root commit whose tree is empty. + + * Recent versions of Git treats http alternates (used in dumb http + transport) just like HTTP redirects and requires the client to + enable following it, due to security concerns. But we forgot to + give a warning when we decide not to honor the alternates. + + * NO_PTHREADS build has been broken for some time; now fixed. + + * Fix for potential segv introduced in v2.11.0 and later (also + v2.10.2). + + * A few unterminated here documents in tests were fixed, which in + turn revealed incorrect expectations the tests make. These tests + have been updated. + +Also contains various documentation updates and code clean-ups. diff --git a/Documentation/RelNotes/2.13.0.txt b/Documentation/RelNotes/2.13.0.txt index 8d5e887c16..4b6e72a7ac 100644 --- a/Documentation/RelNotes/2.13.0.txt +++ b/Documentation/RelNotes/2.13.0.txt @@ -12,8 +12,18 @@ Backward compatibility notes. release (yet). * The historical argument order "git merge <msg> HEAD <commit>..." - has been deprecated for quite some time, and will be removed in a - future release. + has been deprecated for quite some time, and is now removed. + + * The default location "~/.git-credential-cache/socket" for the + socket used to communicate with the credential-cache daemon has + been moved to "~/.cache/git/credential/socket". + + * Git now avoids blindly falling back to ".git" when the setup + sequence said we are _not_ in Git repository. A corner case that + happens to work right now may be broken by a call to die("BUG"). + We've tried hard to locate such cases and fixed them, but there + might still be cases that need to be addressed--bug reports are + greatly appreciated. Updates since v2.12 @@ -77,19 +87,95 @@ UI, Workflows & Features unlike in the e-mail header. "git send-email" has been updated to ignore anything after '>' when picking addresses, to allow non-address cruft like " # stable 4.4" after the address. - (merge 9d3343961b jh/send-email-one-cc later to maint). * When "git submodule init" decides that the submodule in the working tree is its upstream, it now gives a warning as it is not a very common setup. - (merge d1b3b81aab sb/submodule-init-url-selection later to maint). - * "git stash save" takes a pathspec so that the local changes can be + * "git stash push" takes a pathspec so that the local changes can be stashed away only partially. - (merge 9e140909f6 tg/stash-push later to maint). * Documentation for "git ls-files" did not refer to core.quotePath. + * The experimental "split index" feature has gained a few + configuration variables to make it easier to use. + + * From a working tree of a repository, a new option of "rev-parse" + lets you ask if the repository is used as a submodule of another + project, and where the root level of the working tree of that + project (i.e. your superproject) is. + + * The pathspec mechanism learned to further limit the paths that + match the pattern to those that have specified attributes attached + via the gitattributes mechanism. + + * Our source code has used the SHA1_HEADER cpp macro after "#include" + in the C code to switch among the SHA-1 implementations. Instead, + list the exact header file names and switch among implementations + using "#ifdef BLK_SHA1/#include "block-sha1/sha1.h"/.../#endif"; + this helps some IDE tools. + + * The start-up sequence of "git" needs to figure out some configured + settings before it finds and set itself up in the location of the + repository and was quite messy due to its "chicken-and-egg" nature. + The code has been restructured. + + * The command line prompt (in contrib/) learned a new 'tag' style + that can be specified with GIT_PS1_DESCRIBE_STYLE, to describe a + detached HEAD with "git describe --tags". + + * The configuration file learned a new "includeIf.<condition>.path" + that includes the contents of the given path only when the + condition holds. This allows you to say "include this work-related + bit only in the repositories under my ~/work/ directory". + + * Recent update to "rebase -i" started showing a message that is not + a warning with "warning:" prefix by mistake. This has been fixed. + + * Recently we started passing the "--push-options" through the + external remote helper interface; now the "smart HTTP" remote + helper understands what to do with the passed information. + + * "git describe --dirty" dies when it cannot be determined if the + state in the working tree matches that of HEAD (e.g. broken + repository or broken submodule). The command learned a new option + "git describe --broken" to give "$name-broken" (where $name is the + description of HEAD) in such a case. + + * "git checkout" is taught the "--recurse-submodules" option. + + * Recent enhancement to "git stash push" command to support pathspec + to allow only a subset of working tree changes to be stashed away + was found to be too chatty and exposed the internal implementation + detail (e.g. when it uses reset to match the index to HEAD before + doing other things, output from reset seeped out). These, and + other chattyness has been fixed. + + * "git merge <message> HEAD <commit>" syntax that has been deprecated + since October 2007 has been removed. + + * The refs completion for large number of refs has been sped up, + partly by giving up disambiguating ambiguous refs and partly by + eliminating most of the shell processing between 'git for-each-ref' + and 'ls-remote' and Bash's completion facility. + + * On many keyboards, typing "@{" involves holding down SHIFT key and + one can easily end up with "@{Up..." when typing "@{upstream}". As + the upstream/push keywords do not appear anywhere else in the syntax, + we can safely accept them case insensitively without introducing + ambiguity or confusion to solve this. + + * "git tag/branch/for-each-ref" family of commands long allowed to + filter the refs by "--contains X" (show only the refs that are + descendants of X), "--merged X" (show only the refs that are + ancestors of X), "--no-merged X" (show only the refs that are not + ancestors of X). One curious omission, "--no-contains X" (show + only the refs that are not descendants of X) has been added to + them. + + * The default behaviour of "git log" in an interactive session has + been changed to enable "--decorate". + Performance, Internal Implementation, Development Support etc. @@ -114,19 +200,15 @@ Performance, Internal Implementation, Development Support etc. errno from failed system calls. * The "parse_config_key()" API function has been cleaned up. - (merge ad8c7cdadd jk/parse-config-key-cleanup later to maint). * A test that creates a confusing branch whose name is HEAD has been corrected not to do so. - (merge f0252ca23c jk/t6300-cleanup later to maint). * The code that parses header fields in the commit object has been updated for (micro)performance and code hygiene. - (merge b072504ce1 rs/commit-parsing-optim later to maint). * An helper function to make it easier to append the result from real_path() to a strbuf has been added. - (merge 33ad9ddd0b rs/strbuf-add-real-path later to maint). * Reduce authentication round-trip over HTTP when the server supports just a single authentication method. This also improves the @@ -134,12 +216,61 @@ Performance, Internal Implementation, Development Support etc. against a server that does not authenticate without a username (i.e. not using Kerberos etc., which makes http.emptyAuth pointless). - (merge 40a18fc77c jk/http-auth later to maint). * Windows port wants to use OpenSSL's implementation of SHA-1 routines, so let them. - (merge 2cfc70f0de jh/mingw-openssl-sha1 later to maint). + * The t/perf performance test suite was not prepared to test not so + old versions of Git, but now it covers versions of Git that are not + so ancient. + + * Add 32-bit Linux variant to the set of platforms to be tested with + Travis CI. + + * "git branch --list" takes the "--abbrev" and "--no-abbrev" options + to control the output of the object name in its "-v"(erbose) + output, but a recent update started ignoring them; fix it before + the breakage reaches to any released version. + + * Picking two versions of Git and running tests to make sure the + older one and the newer one interoperate happily has now become + possible. + + * "uchar [40]" to "struct object_id" conversion continues. + + * "git tag --contains" used to (ab)use the object bits to keep track + of the state of object reachability without clearing them after + use; this has been cleaned up and made to use the newer commit-slab + facility. + + * The "debug" helper used in the test framework learned to run + a command under "gdb" interactively. + + * The "detect attempt to create collisions" variant of SHA-1 + implementation by Marc Stevens (CWI) and Dan Shumow (Microsoft) + has been integrated and made the default. + + * The test framework learned to detect unterminated here documents. + + * The name-hash used for detecting paths that are different only in + cases (which matter on case insensitive filesystems) has been + optimized to take advantage of multi-threading when it makes sense. + + * An earlier version of sha1dc/sha1.c that was merged to 'master' + compiled incorrectly on Windows, which has been fixed. + + * "what URL do we want to update this submodule?" and "are we + interested in this submodule?" are split into two distinct + concepts, and then the way used to express the latter got extended, + paving a way to make it easier to manage a project with many + submodules and make it possible to later extend use of multiple + worktrees for a project with submodules. + + * Some debugging output from "git describe" were marked for l10n, + but some weren't. Mark missing ones for l10n. + + * Define a new task in .travis.yml that triggers a test session on + Windows run elsewhere. Also contains various documentation updates and code clean-ups. @@ -147,30 +278,26 @@ Also contains various documentation updates and code clean-ups. Fixes since v2.12 ----------------- -Unless otherwise noted, all the fixes since v2.9 in the maintenance +Unless otherwise noted, all the fixes since v2.12 in the maintenance track are contained in this release (see the maintenance releases' notes for details). * "git repack --depth=<n>" for a long time busted the specified depth when reusing delta from existing packs. This has been corrected. - (merge 42b766d765 jk/delta-chain-limit later to maint). * The code to parse the command line "git grep <patterns>... <rev> [[--] <pathspec>...]" has been cleaned up, and a handful of bugs have been fixed (e.g. we used to check "--" if it is a rev). - (merge 131f3c96d2 jk/grep-no-index-fix later to maint). * "git ls-remote" and "git archive --remote" are designed to work without being in a directory under Git's control. However, recent updates revealed that we randomly look into a directory called .git/ without actually doing necessary set-up when working in a repository. Stop doing so. - (merge 4b0c3c7735 jn/remote-helpers-with-git-dir later to maint). * "git show-branch" expected there were only very short branch names in the repository and used a fixed-length buffer to hold them without checking for overflow. - (merge d3cc5f4c44 jk/show-branch-lift-name-len-limit later to maint). * A caller of tempfile API that uses stdio interface to write to files may ignore errors while writing, which is detected when @@ -179,77 +306,171 @@ notes for details). be long gone and was overwritten by an irrelevant value. close_tempfile() now resets errno to EIO to make errno at least predictable. - (merge 7e8c9355b7 jk/tempfile-ferror-fclose-confusion later to maint). * "git remote rm X", when a branch has remote X configured as the value of its branch.*.remote, tried to remove branch.*.remote and branch.*.merge and failed if either is unset. - (merge 20690b2139 rl/remote-allow-missing-branch-name-merge later to maint). * A "gc.log" file left by a backgrounded "gc --auto" disables further automatic gc; it has been taught to run at least once a day (by default) by ignoring a stale "gc.log" file that is too old. - (merge a831c06a2b dt/gc-ignore-old-gc-logs later to maint). * The code to parse "git -c VAR=VAL cmd" and set configuration variable for the duration of cmd had two small bugs, which have been fixed. - (merge 1274a155af jc/config-case-cmdline-take-2 later to maint). * user.email that consists of only cruft chars should consistently error out, but didn't. - (merge 94425552f3 jk/ident-empty later to maint). * "git upload-pack", which is a counter-part of "git fetch", did not report a request for a ref that was not advertised as invalid. This is generally not a problem (because "git fetch" will stop before making such a request), but is the right thing to do. - (merge bdb31eada7 jt/upload-pack-error-report later to maint). * A leak in a codepath to read from a packed object in (rare) cases has been plugged. - (merge 886ddf4777 rs/sha1-file-plug-fallback-base-leak later to maint). * When a redirected http transport gets an error during the redirected request, we ignored the error we got from the server, and ended up giving a not-so-useful error message. - (merge 8e27391a5f jt/http-base-url-update-upon-redirect later to maint). * The patch subcommand of "git add -i" was meant to have paths selection prompt just like other subcommand, unlike "git add -p" directly jumps to hunk selection. Recently, this was broken and "add -i" lost the paths selection dialog, but it now has been fixed. - (merge c852bd54bd jk/add-i-patch-do-prompt later to maint). * Git v2.12 was shipped with an embarrassing breakage where various operations that verify paths given from the user stopped dying when seeing an issue, and instead later triggering segfault. - (merge ce83eadd9a js/realpath-pathdup-fix later to maint). * There is no need for Python only to give a few messages to the standard error stream, but we somehow did. - (merge b8686c661d ss/remote-bzr-hg-placeholder-wo-python later to maint). * The code to parse "git log -L..." command line was buggy when there are many ranges specified with -L; overrun of the allocated buffer has been fixed. - (merge aaae0bf787 ax/line-log-range-merge-fix later to maint). * The command-line parsing of "git log -L" copied internal data structures using incorrect size on ILP32 systems. - (merge 07f546cda5 vn/line-log-memcpy-size-fix later to maint). * "git diff --quiet" relies on the size field in diff_filespec to be correctly populated, but diff_populate_filespec() helper function made an incorrect short-cut when asked only to populate the size field for paths that need to go through convert_to_git() (e.g. CRLF conversion). - (merge 12426e114b jc/diff-populate-filespec-size-only-fix later to maint). + + * A few tests were run conditionally under (rare) conditions where + they cannot be run (like running cvs tests under 'root' account). + + * "git branch @" created refs/heads/@ as a branch, and in general the + code that handled @{-1} and @{upstream} was a bit too loose in + disambiguating. + + * "git fetch" that requests a commit by object name, when the other + side does not allow such an request, failed without much + explanation. + + * "git filter-branch --prune-empty" drops a single-parent commit that + becomes a no-op, but did not drop a root commit whose tree is empty. + + * Recent versions of Git treats http alternates (used in dumb http + transport) just like HTTP redirects and requires the client to + enable following it, due to security concerns. But we forgot to + give a warning when we decide not to honor the alternates. + + * "git push" had a handful of codepaths that could lead to a deadlock + when unexpected error happened, which has been fixed. + + * "Dumb http" transport used to misparse a nonsense http-alternates + response, which has been fixed. + + * "git add -p <pathspec>" unnecessarily expanded the pathspec to a + list of individual files that matches the pathspec by running "git + ls-files <pathspec>", before feeding it to "git diff-index" to see + which paths have changes, because historically the pathspec + language supported by "diff-index" was weaker. These days they are + equivalent and there is no reason to internally expand it. This + helps both performance and avoids command line argument limit on + some platforms. + (merge 7288e12cce jk/add-i-use-pathspecs later to maint). + + * "git status --porcelain" is supposed to give a stable output, but a + few strings were left as translatable by mistake. + + * "git revert -m 0 $merge_commit" complained that reverting a merge + needs to say relative to which parent the reversion needs to + happen, as if "-m 0" weren't given. The correct diagnosis is that + "-m 0" does not refer to the first parent ("-m 1" does). This has + been fixed. + + * Code to read submodule.<name>.ignore config did not state the + variable name correctly when giving an error message diagnosing + misconfiguration. + + * Fix for NO_PTHREADS build. + + * Fix for potential segv introduced in v2.11.0 and later (also + v2.10.2) to "git log --pickaxe-regex -S". + + * A few unterminated here documents in tests were fixed, which in + turn revealed incorrect expectations the tests make. These tests + have been updated. + + * Fix for NO_PTHREADS option. + (merge 2225e1ea20 bw/grep-recurse-submodules later to maint). + + * Git now avoids blindly falling back to ".git" when the setup + sequence said we are _not_ in Git repository. A corner case that + happens to work right now may be broken by a call to die("BUG"). + (merge b1ef400eec jk/no-looking-at-dotgit-outside-repo-final later to maint). + + * A few commands that recently learned the "--recurse-submodule" + option misbehaved when started from a subdirectory of the + superproject. + (merge b2dfeb7c00 bw/recurse-submodules-relative-fix later to maint). + + * FreeBSD implementation of getcwd(3) behaved differently when an + intermediate directory is unreadable/unsearchable depending on the + length of the buffer provided, which our strbuf_getcwd() was not + aware of. strbuf_getcwd() has been taught to cope with it better. + (merge a54e938e5b rs/freebsd-getcwd-workaround later to maint). + + * A recent update to "rebase -i" stopped running hooks for the "git + commit" command during "reword" action, which has been fixed. + + * Removing an entry from a notes tree and then looking another note + entry from the resulting tree using the internal notes API + functions did not work as expected. No in-tree users of the API + has such access pattern, but it still is worth fixing. + + * "git receive-pack" could have been forced to die by attempting + allocate an unreasonably large amount of memory with a crafted push + certificate; this has been fixed. + (merge f2214dede9 bc/push-cert-receive-fix later to maint). + + * Update error handling for codepath that deals with corrupt loose + objects. + (merge 51054177b3 jk/loose-object-info-report-error later to maint). + + * "git diff --submodule=diff" learned to work better in a project + with a submodule that in turn has its own submodules. + (merge 17b254cda6 sb/show-diff-for-submodule-in-diff-fix later to maint). + + * Update the build dependency so that an update to /usr/bin/perl + etc. result in recomputation of perl.mak file. + (merge c59c4939c2 ab/regen-perl-mak-with-different-perl later to maint). * Other minor doc, test and build updates and code cleanups. - (merge 2cfa83574c mm/two-more-xstrfmt later to maint). - (merge b803ae4427 ps/docs-diffcore later to maint). - (merge bcd886d897 ew/markdown-url-in-readme later to maint). - (merge b2d593a779 rj/remove-unused-mktemp later to maint). - (merge 3255e512a8 jk/ewah-use-right-type-in-sizeof later to maint). + (merge df2a6e38b7 jk/pager-in-use later to maint). + (merge 75ec4a6cb0 ab/branch-list-doc later to maint). + (merge 3e5b36c637 sg/skip-prefix-in-prettify-refname later to maint). + (merge 2c5e2865cc jk/fast-import-cleanup later to maint). + (merge 4473060bc2 ab/test-readme-updates later to maint). + (merge 48a96972fd ab/doc-submitting later to maint). + (merge f5c2bc2b96 jk/make-coccicheck-detect-errors later to maint). + (merge c105f563d1 cc/untracked later to maint). + (merge 8668976b53 jc/unused-symbols later to maint). + (merge fba275dc93 jc/bs-t-is-not-a-tab-for-sed later to maint). + (merge be6ed145de mm/ls-files-s-doc later to maint). + (merge 60b091c679 qp/bisect-docfix later to maint). diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches index 3faf7eb884..bc8ad00473 100644 --- a/Documentation/SubmittingPatches +++ b/Documentation/SubmittingPatches @@ -98,12 +98,17 @@ should skip the full stop. It is also conventional in most cases to prefix the first line with "area: " where the area is a filename or identifier for the general area of the code being modified, e.g. - . archive: ustar header checksum is computed unsigned - . git-cherry-pick.txt: clarify the use of revision range notation + . doc: clarify distinction between sign-off and pgp-signing + . githooks.txt: improve the intro section If in doubt which identifier to use, run "git log --no-merges" on the files you are modifying to see the current conventions. +It's customary to start the remainder of the first line after "area: " +with a lower-case letter. E.g. "doc: clarify...", not "doc: +Clarify...", or "githooks.txt: improve...", not "githooks.txt: +Improve...". + The body should provide a meaningful commit message, which: . explains the problem the change tries to solve, iow, what is wrong @@ -129,8 +134,9 @@ with the subject enclosed in a pair of double-quotes, like this: noticed that ... The "Copy commit summary" command of gitk can be used to obtain this -format. +format, or this invocation of "git show": + git show -s --date=short --pretty='format:%h ("%s", %ad)' <commit> (3) Generate your patch using Git tools out of your commits. diff --git a/Documentation/config.txt b/Documentation/config.txt index d2d79b9d4f..475e874d51 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -79,18 +79,69 @@ escape sequences) are invalid. Includes ~~~~~~~~ -You can include one config file from another by setting the special +You can include a config file from another by setting the special `include.path` variable to the name of the file to be included. The variable takes a pathname as its value, and is subject to tilde -expansion. +expansion. `include.path` can be given multiple times. -The -included file is expanded immediately, as if its contents had been +The included file is expanded immediately, as if its contents had been found at the location of the include directive. If the value of the -`include.path` variable is a relative path, the path is considered to be -relative to the configuration file in which the include directive was -found. See below for examples. +`include.path` variable is a relative path, the path is considered to +be relative to the configuration file in which the include directive +was found. See below for examples. +Conditional includes +~~~~~~~~~~~~~~~~~~~~ + +You can include a config file from another conditionally by setting a +`includeIf.<condition>.path` variable to the name of the file to be +included. The variable's value is treated the same way as +`include.path`. `includeIf.<condition>.path` can be given multiple times. + +The condition starts with a keyword followed by a colon and some data +whose format and meaning depends on the keyword. Supported keywords +are: + +`gitdir`:: + + The data that follows the keyword `gitdir:` is used as a glob + pattern. If the location of the .git directory matches the + pattern, the include condition is met. ++ +The .git location may be auto-discovered, or come from `$GIT_DIR` +environment variable. If the repository is auto discovered via a .git +file (e.g. from submodules, or a linked worktree), the .git location +would be the final location where the .git directory is, not where the +.git file is. ++ +The pattern can contain standard globbing wildcards and two additional +ones, `**/` and `/**`, that can match multiple path components. Please +refer to linkgit:gitignore[5] for details. For convenience: + + * If the pattern starts with `~/`, `~` will be substituted with the + content of the environment variable `HOME`. + + * If the pattern starts with `./`, it is replaced with the directory + containing the current config file. + + * If the pattern does not start with either `~/`, `./` or `/`, `**/` + will be automatically prepended. For example, the pattern `foo/bar` + becomes `**/foo/bar` and would match `/any/path/to/foo/bar`. + + * If the pattern ends with `/`, `**` will be automatically added. For + example, the pattern `foo/` becomes `foo/**`. In other words, it + matches "foo" and everything inside, recursively. + +`gitdir/i`:: + This is the same as `gitdir` except that matching is done + case-insensitively (e.g. on case-insensitive file sytems) + +A few more notes on matching via `gitdir` and `gitdir/i`: + + * Symlinks in `$GIT_DIR` are not resolved before matching. + + * Note that "../" is not special and will match literally, which is + unlikely what you want. Example ~~~~~~~ @@ -119,6 +170,17 @@ Example path = foo ; expand "foo" relative to the current file path = ~/foo ; expand "foo" in your `$HOME` directory + ; include if $GIT_DIR is /path/to/foo/.git + [includeIf "gitdir:/path/to/foo/.git"] + path = /path/to/foo.inc + + ; include for all repositories inside /path/to/group + [includeIf "gitdir:/path/to/group/"] + path = /path/to/foo.inc + + ; include for all repositories inside $HOME/to/group + [includeIf "gitdir:~/to/group/"] + path = /path/to/foo.inc Values ~~~~~~ @@ -334,6 +396,10 @@ core.trustctime:: crawlers and some backup systems). See linkgit:git-update-index[1]. True by default. +core.splitIndex:: + If true, the split-index feature of the index will be used. + See linkgit:git-update-index[1]. False by default. + core.untrackedCache:: Determines what to do about the untracked cache feature of the index. It will be kept, if this variable is unset or set to @@ -671,13 +737,13 @@ alternative to having an `init.templateDir` where you've changed default hooks. core.editor:: - Commands such as `commit` and `tag` that lets you edit - messages by launching an editor uses the value of this + Commands such as `commit` and `tag` that let you edit + messages by launching an editor use the value of this variable when it is set, and the environment variable `GIT_EDITOR` is not set. See linkgit:git-var[1]. core.commentChar:: - Commands such as `commit` and `tag` that lets you edit + Commands such as `commit` and `tag` that let you edit messages consider a line that begins with this character commented, and removes them after the editor returns (default '#'). @@ -2455,6 +2521,8 @@ push.default:: pushing to the same repository you would normally pull from (i.e. central workflow). +* `tracking` - This is a deprecated synonym for `upstream`. + * `simple` - in centralized workflow, work like `upstream` with an added safety to refuse to push if the upstream branch's name is different from the local one. @@ -2850,6 +2918,31 @@ showbranch.default:: The default set of branches for linkgit:git-show-branch[1]. See linkgit:git-show-branch[1]. +splitIndex.maxPercentChange:: + When the split index feature is used, this specifies the + percent of entries the split index can contain compared to the + total number of entries in both the split index and the shared + index before a new shared index is written. + The value should be between 0 and 100. If the value is 0 then + a new shared index is always written, if it is 100 a new + shared index is never written. + By default the value is 20, so a new shared index is written + if the number of entries in the split index would be greater + than 20 percent of the total number of entries. + See linkgit:git-update-index[1]. + +splitIndex.sharedIndexExpire:: + When the split index feature is used, shared index files that + were not modified since the time this variable specifies will + be removed when a new shared index file is created. The value + "now" expires all entries immediately, and "never" suppresses + expiration altogether. + The default value is "2.weeks.ago". + Note that a shared index file is considered modified (for the + purpose of expiration) each time a new split-index file is + either created based on it or read from it. + See linkgit:git-update-index[1]. + status.relativePaths:: By default, linkgit:git-status[1] shows paths relative to the current directory. Setting this variable to `false` shows paths diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt index bdd915a66b..6c42abf070 100644 --- a/Documentation/git-bisect.txt +++ b/Documentation/git-bisect.txt @@ -137,7 +137,7 @@ respectively, in place of "good" and "bad". (But note that you cannot mix "good" and "bad" with "old" and "new" in a single session.) In this more general usage, you provide `git bisect` with a "new" -commit has some property and an "old" commit that doesn't have that +commit that has some property and an "old" commit that doesn't have that property. Each time `git bisect` checks out a commit, you test if that commit has the property. If it does, mark the commit as "new"; otherwise, mark it as "old". When the bisection is done, `git bisect` diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index 092f1bcf9f..81bd0a7b77 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -10,8 +10,9 @@ SYNOPSIS [verse] 'git branch' [--color[=<when>] | --no-color] [-r | -a] [--list] [-v [--abbrev=<length> | --no-abbrev]] - [--column[=<options>] | --no-column] - [(--merged | --no-merged | --contains) [<commit>]] [--sort=<key>] + [--column[=<options>] | --no-column] [--sort=<key>] + [(--merged | --no-merged) [<commit>]] + [--contains [<commit]] [--no-contains [<commit>]] [--points-at <object>] [--format=<format>] [<pattern>...] 'git branch' [--set-upstream | --track | --no-track] [-l] [-f] <branchname> [<start-point>] 'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>] @@ -35,11 +36,12 @@ as branch creation. With `--contains`, shows only the branches that contain the named commit (in other words, the branches whose tip commits are descendants of the -named commit). With `--merged`, only branches merged into the named -commit (i.e. the branches whose tip commits are reachable from the named -commit) will be listed. With `--no-merged` only branches not merged into -the named commit will be listed. If the <commit> argument is missing it -defaults to `HEAD` (i.e. the tip of the current branch). +named commit), `--no-contains` inverts it. With `--merged`, only branches +merged into the named commit (i.e. the branches whose tip commits are +reachable from the named commit) will be listed. With `--no-merged` only +branches not merged into the named commit will be listed. If the <commit> +argument is missing it defaults to `HEAD` (i.e. the tip of the current +branch). The command's second form creates a new branch head named <branchname> which points to the current `HEAD`, or <start-point> if given. @@ -142,8 +144,13 @@ This option is only applicable in non-verbose mode. List both remote-tracking branches and local branches. --list:: - Activate the list mode. `git branch <pattern>` would try to create a branch, - use `git branch --list <pattern>` to list matching branches. + List branches. With optional `<pattern>...`, e.g. `git + branch --list 'maint-*'`, list only the branches that match + the pattern(s). ++ +This should not be confused with `git branch -l <branchname>`, +which creates a branch named `<branchname>` with a reflog. +See `--create-reflog` above for details. -v:: -vv:: @@ -213,13 +220,19 @@ start-point is either a local or remote-tracking branch. Only list branches which contain the specified commit (HEAD if not specified). Implies `--list`. +--no-contains [<commit>]:: + Only list branches which don't contain the specified commit + (HEAD if not specified). Implies `--list`. + --merged [<commit>]:: Only list branches whose tips are reachable from the - specified commit (HEAD if not specified). Implies `--list`. + specified commit (HEAD if not specified). Implies `--list`, + incompatible with `--no-merged`. --no-merged [<commit>]:: Only list branches whose tips are not reachable from the - specified commit (HEAD if not specified). Implies `--list`. + specified commit (HEAD if not specified). Implies `--list`, + incompatible with `--merged`. <branchname>:: The name of the branch to create or delete. @@ -296,13 +309,16 @@ If you are creating a branch that you want to checkout immediately, it is easier to use the git checkout command with its `-b` option to create a branch and check it out with a single command. -The options `--contains`, `--merged` and `--no-merged` serve three related -but different purposes: +The options `--contains`, `--no-contains`, `--merged` and `--no-merged` +serve four related but different purposes: - `--contains <commit>` is used to find all branches which will need special attention if <commit> were to be rebased or amended, since those branches contain the specified <commit>. +- `--no-contains <commit>` is the inverse of that, i.e. branches that don't + contain the specified <commit>. + - `--merged` is used to find all branches which can be safely deleted, since those branches are fully contained by HEAD. diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index 8e2c0662dd..d6399c0af8 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -256,6 +256,13 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. out anyway. In other words, the ref can be held by more than one worktree. +--[no-]recurse-submodules:: + Using --recurse-submodules will update the content of all initialized + submodules according to the commit recorded in the superproject. If + local modifications in a submodule would be overwritten the checkout + will fail unless `-f` is used. If nothing (or --no-recurse-submodules) + is used, the work trees of submodules will not be updated. + <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 diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt index 25dcdcc289..ed0f5b94b3 100644 --- a/Documentation/git-commit.txt +++ b/Documentation/git-commit.txt @@ -463,7 +463,7 @@ order). See linkgit:git-var[1] for details. HOOKS ----- This command can run `commit-msg`, `prepare-commit-msg`, `pre-commit`, -and `post-commit` hooks. See linkgit:githooks[5] for more +`post-commit` and `post-rewrite` hooks. See linkgit:githooks[5] for more information. FILES diff --git a/Documentation/git-credential-cache.txt b/Documentation/git-credential-cache.txt index 96208f822e..2b85826393 100644 --- a/Documentation/git-credential-cache.txt +++ b/Documentation/git-credential-cache.txt @@ -33,10 +33,13 @@ OPTIONS --socket <path>:: Use `<path>` to contact a running cache daemon (or start a new - cache daemon if one is not started). Defaults to - `~/.git-credential-cache/socket`. If your home directory is on a - network-mounted filesystem, you may need to change this to a - local filesystem. You must specify an absolute path. + cache daemon if one is not started). + Defaults to `$XDG_CACHE_HOME/git/credential/socket` unless + `~/.git-credential-cache/` exists in which case + `~/.git-credential-cache/socket` is used instead. + If your home directory is on a network-mounted filesystem, you + may need to change this to a local filesystem. You must specify + an absolute path. CONTROLLING THE DAEMON ---------------------- diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt index 8755f3af7b..26f19d3b07 100644 --- a/Documentation/git-describe.txt +++ b/Documentation/git-describe.txt @@ -30,9 +30,14 @@ OPTIONS Commit-ish object names to describe. Defaults to HEAD if omitted. --dirty[=<mark>]:: - Describe the working tree. - It means describe HEAD and appends <mark> (`-dirty` by - default) if the working tree is dirty. +--broken[=<mark>]:: + Describe the state of the working tree. When the working + tree matches HEAD, the output is the same as "git describe + HEAD". If the working tree has local modification "-dirty" + is appended to it. If a repository is corrupt and Git + cannot determine if there is local modification, Git will + error out, unless `--broken' is given, which appends + the suffix "-broken" instead. --all:: Instead of using only the annotated tags, use any ref diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index bbab35fcaf..b0c1bb95c8 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -97,6 +97,20 @@ OPTIONS :git-diff: 1 include::diff-options.txt[] +-1 --base:: +-2 --ours:: +-3 --theirs:: + Compare the working tree with the "base" version (stage #1), + "our branch" (stage #2) or "their branch" (stage #3). The + index contains these stages only for unmerged entries i.e. + while resolving conflicts. See linkgit:git-read-tree[1] + section "3-Way Merge" for detailed information. + +-0:: + Omit diff output for unmerged entries and just show + "Unmerged". Can be used only when comparing the working tree + with the index. + <path>...:: The <paths> parameters, when given, are used to limit the diff to the named paths (you can give directory diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index 0a09698c03..6e4bb02204 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -167,14 +167,12 @@ to other tags will be rewritten to point to the underlying commit. project root. Implies <<Remap_to_ancestor>>. --prune-empty:: - Some kind of filters will generate empty commits, that left the tree - untouched. This switch allow git-filter-branch to ignore such - commits. Though, this switch only applies for commits that have one - and only one parent, it will hence keep merges points. Also, this - option is not compatible with the use of `--commit-filter`. Though you - just need to use the function 'git_commit_non_empty_tree "$@"' instead - of the `git commit-tree "$@"` idiom in your commit filter to make that - happen. + Some filters will generate empty commits that leave the tree untouched. + This option instructs git-filter-branch to remove such commits if they + have exactly one or zero non-pruned parents; merge commits will + therefore remain intact. This option cannot be used together with + `--commit-filter`, though the same effect can be achieved by using the + provided `git_commit_non_empty_tree` function in a commit filter. --original <namespace>:: Use this option to set the namespace where the original commits diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index 111e1be6f5..03e187a105 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -11,7 +11,7 @@ SYNOPSIS 'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl] [(--sort=<key>)...] [--format=<format>] [<pattern>...] [--points-at <object>] [(--merged | --no-merged) [<object>]] - [--contains [<object>]] + [--contains [<object>]] [--no-contains [<object>]] DESCRIPTION ----------- @@ -69,16 +69,22 @@ OPTIONS --merged [<object>]:: Only list refs whose tips are reachable from the - specified commit (HEAD if not specified). + specified commit (HEAD if not specified), + incompatible with `--no-merged`. --no-merged [<object>]:: Only list refs whose tips are not reachable from the - specified commit (HEAD if not specified). + specified commit (HEAD if not specified), + incompatible with `--merged`. --contains [<object>]:: Only list refs which contain the specified commit (HEAD if not specified). +--no-contains [<object>]:: + Only list refs which don't contain the specified commit (HEAD + if not specified). + --ignore-case:: Sorting and filtering refs are case insensitive. diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt index 9b200b379b..f7a069bb92 100644 --- a/Documentation/git-format-patch.txt +++ b/Documentation/git-format-patch.txt @@ -239,7 +239,7 @@ keeping them as Git notes allows them to be maintained between versions of the patch series (but see the discussion of the `notes.rewrite` configuration options in linkgit:git-notes[1] to use this workflow). ---[no]-signature=<signature>:: +--[no-]signature=<signature>:: Add a signature to each message produced. Per RFC 3676 the signature is separated from the body by a line with '-- ' on it. If the signature option is omitted the signature defaults to the Git version diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt index 1cab703f73..d153c17e06 100644 --- a/Documentation/git-ls-files.txt +++ b/Documentation/git-ls-files.txt @@ -57,7 +57,7 @@ OPTIONS -s:: --stage:: - Show staged contents' object name, mode bits and stage number in the output. + Show staged contents' mode bits, object name and stage number in the output. --directory:: If a whole directory is classified as "other", show just its diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index ca3c27b88a..04fdd8cf08 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -13,7 +13,6 @@ SYNOPSIS [-s <strategy>] [-X <strategy-option>] [-S[<keyid>]] [--[no-]allow-unrelated-histories] [--[no-]rerere-autoupdate] [-m <msg>] [<commit>...] -'git merge' <msg> HEAD <commit>... 'git merge' --abort 'git merge' --continue @@ -46,11 +45,7 @@ a log message from the user describing the changes. D---E---F---G---H master ------------ -The second syntax (<msg> `HEAD` <commit>...) is supported for -historical reasons. Do not use it from the command line or in -new scripts. It is the same as `git merge -m <msg> <commit>...`. - -The third syntax ("`git merge --abort`") can only be run after the +The second syntax ("`git merge --abort`") can only be run after the merge has resulted in conflicts. 'git merge --abort' will abort the merge process and try to reconstruct the pre-merge state. However, if there were uncommitted changes when the merge started (and diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index fa1d557e5b..ed9d63ef4a 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -115,6 +115,12 @@ OPTIONS directories the index file and index output file are located in. +--[no-]recurse-submodules:: + Using --recurse-submodules will update the content of all initialized + submodules according to the commit recorded in the superproject by + calling read-tree recursively, also setting the submodules HEAD to be + detached at that commit. + --no-sparse-checkout:: Disable sparse checkout support even if `core.sparseCheckout` is true. diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt index 91c02b8c85..c40c470448 100644 --- a/Documentation/git-rev-parse.txt +++ b/Documentation/git-rev-parse.txt @@ -261,6 +261,12 @@ print a message to stderr and exit with nonzero status. --show-toplevel:: Show the absolute path of the top-level directory. +--show-superproject-working-tree + Show the absolute path of the root of the superproject's + working tree (if exists) that uses the current repository as + its submodule. Outputs nothing if the current repository is + not used as a submodule by any project. + --shared-index-path:: Show the path to the shared index file in split index mode, or empty if not in split-index mode. diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt index 642d0ef199..9d66166f69 100644 --- a/Documentation/git-send-email.txt +++ b/Documentation/git-send-email.txt @@ -89,7 +89,7 @@ See the CONFIGURATION section for `sendemail.multiEdit`. reply to the given Message-Id, which avoids breaking threads to provide a new patch series. The second and subsequent emails will be sent as replies according to - the `--[no]-chain-reply-to` setting. + the `--[no-]chain-reply-to` setting. + So for example when `--thread` and `--no-chain-reply-to` are specified, the second and subsequent patches will be replies to the first one like in the diff --git a/Documentation/git-send-pack.txt b/Documentation/git-send-pack.txt index a831dd0288..966abb0df8 100644 --- a/Documentation/git-send-pack.txt +++ b/Documentation/git-send-pack.txt @@ -81,6 +81,12 @@ be in a separate packet, and the list must end with a flush packet. will also fail if the actual call to `gpg --sign` fails. See linkgit:git-receive-pack[1] for the details on the receiving end. +--push-option=<string>:: + Pass the specified string as a push option for consumption by + hooks on the server side. If the server doesn't support push + options, error out. See linkgit:git-push[1] and + linkgit:githooks[5] for details. + <host>:: A remote host to house the repository. When this part is specified, 'git-receive-pack' is invoked via diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt index ba873657cf..d70abc6afe 100644 --- a/Documentation/git-status.txt +++ b/Documentation/git-status.txt @@ -181,6 +181,17 @@ in which case `XY` are `!!`. ! ! ignored ------------------------------------------------- +Submodules have more state and instead report + M the submodule has a different HEAD than + recorded in the index + m the submodule has modified content + ? the submodule has untracked files +since modified content or untracked files in a submodule cannot be added +via `git add` in the superproject to prepare a commit. + +'m' and '?' are applied recursively. For example if a nested submodule +in a submodule contains an untracked file, this is reported as '?' as well. + If -b is used the short-format status is preceded by a line ## branchname tracking info @@ -210,6 +221,8 @@ field from the first filename). Third, filenames containing special characters are not specially formatted; no quoting or backslash-escaping is performed. +Any submodule changes are reported as modified `M` instead of `m` or single `?`. + Porcelain Format Version 2 ~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt index 525737a5d8..f8a0b787f4 100644 --- a/Documentation/git-tag.txt +++ b/Documentation/git-tag.txt @@ -12,9 +12,10 @@ SYNOPSIS 'git tag' [-a | -s | -u <keyid>] [-f] [-m <msg> | -F <file>] <tagname> [<commit> | <object>] 'git tag' -d <tagname>... -'git tag' [-n[<num>]] -l [--contains <commit>] [--points-at <object>] - [--column[=<options>] | --no-column] [--create-reflog] [--sort=<key>] - [--format=<format>] [--[no-]merged [<commit>]] [<pattern>...] +'git tag' [-n[<num>]] -l [--contains <commit>] [--contains <commit>] + [--points-at <object>] [--column[=<options>] | --no-column] + [--create-reflog] [--sort=<key>] [--format=<format>] + [--[no-]merged [<commit>]] [<pattern>...] 'git tag' -v [--format=<format>] <tagname>... DESCRIPTION @@ -82,18 +83,24 @@ OPTIONS -n<num>:: <num> specifies how many lines from the annotation, if any, - are printed when using -l. - The default is not to print any annotation lines. - If no number is given to `-n`, only the first line is printed. - If the tag is not annotated, the commit message is displayed instead. - --l <pattern>:: ---list <pattern>:: - List tags with names that match the given pattern (or all if no - pattern is given). Running "git tag" without arguments also - lists all tags. The pattern is a shell wildcard (i.e., matched - using fnmatch(3)). Multiple patterns may be given; if any of - them matches, the tag is shown. + are printed when using -l. Implies `--list`. ++ +The default is not to print any annotation lines. +If no number is given to `-n`, only the first line is printed. +If the tag is not annotated, the commit message is displayed instead. + +-l:: +--list:: + List tags. With optional `<pattern>...`, e.g. `git tag --list + 'v-*'`, list only the tags that match the pattern(s). ++ +Running "git tag" without arguments also lists all tags. The pattern +is a shell wildcard (i.e., matched using fnmatch(3)). Multiple +patterns may be given; if any of them matches, the tag is shown. ++ +This option is implicitly supplied if any other list-like option such +as `--contains` is provided. See the documentation for each of those +options for details. --sort=<key>:: Sort based on the key given. Prefix `-` to sort in @@ -122,10 +129,23 @@ This option is only applicable when listing tags without annotation lines. --contains [<commit>]:: Only list tags which contain the specified commit (HEAD if not - specified). + specified). Implies `--list`. + +--no-contains [<commit>]:: + Only list tags which don't contain the specified commit (HEAD if + not specified). Implies `--list`. + +--merged [<commit>]:: + Only list tags whose commits are reachable from the specified + commit (`HEAD` if not specified), incompatible with `--no-merged`. + +--no-merged [<commit>]:: + Only list tags whose commits are not reachable from the specified + commit (`HEAD` if not specified), incompatible with `--merged`. --points-at <object>:: - Only list tags of the given object. + Only list tags of the given object (HEAD if not + specified). Implies `--list`. -m <msg>:: --message=<msg>:: @@ -173,11 +193,6 @@ This option is only applicable when listing tags without annotation lines. that of linkgit:git-for-each-ref[1]. When unspecified, defaults to `%(refname:strip=2)`. ---[no-]merged [<commit>]:: - Only list tags whose tips are reachable, or not reachable - if `--no-merged` is used, from the specified commit (`HEAD` - if not specified). - CONFIGURATION ------------- By default, 'git tag' in sign-with-default mode (-s) will use your diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt index 7386c93162..1579abf3c3 100644 --- a/Documentation/git-update-index.txt +++ b/Documentation/git-update-index.txt @@ -163,14 +163,16 @@ may not support it yet. --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. + Enable or disable split index mode. 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. ++ +These options take effect whatever the value of the `core.splitIndex` +configuration variable (see linkgit:git-config[1]). But a warning is +emitted when the change goes against the configured value, as the +configured value will take effect next time the index is read and this +will remove the intended effect of the option. --untracked-cache:: --no-untracked-cache:: @@ -388,6 +390,31 @@ Although this bit looks similar to assume-unchanged bit, its goal is different from assume-unchanged bit's. Skip-worktree also takes precedence over assume-unchanged bit when both are set. +Split index +----------- + +This mode is designed for repositories with very large indexes, and +aims at reducing the time it takes to repeatedly write these indexes. + +In this mode, the index is split into two files, $GIT_DIR/index and +$GIT_DIR/sharedindex.<SHA-1>. Changes are accumulated in +$GIT_DIR/index, the split index, while the shared index file contains +all index entries and stays unchanged. + +All changes in the split index are pushed back to the shared index +file when the number of entries in the split index reaches a level +specified by the splitIndex.maxPercentChange config variable (see +linkgit:git-config[1]). + +Each time a new shared index file is created, the old shared index +files are deleted if their modification time is older than what is +specified by the splitIndex.sharedIndexExpire config variable (see +linkgit:git-config[1]). + +To avoid deleting a shared index file that is still used, its +modification time is updated to the current time everytime a new split +index based on the shared index file is either created or read from. + Untracked cache --------------- diff --git a/Documentation/git.txt b/Documentation/git.txt index df0941d456..ecc1bb4bd7 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -44,9 +44,11 @@ unreleased) version of Git, that is available from the 'master' branch of the `git.git` repository. Documentation for older releases are available here: -* link:v2.12.0/git.html[documentation for release 2.12.0] +* link:v2.12.2/git.html[documentation for release 2.12.2] * release notes for + link:RelNotes/2.12.2.txt[2.12.2]. + link:RelNotes/2.12.1.txt[2.12.1]. link:RelNotes/2.12.0.txt[2.12]. * link:v2.11.1/git.html[documentation for release 2.11.1] diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt index fc9320e59e..6e991c2469 100644 --- a/Documentation/glossary-content.txt +++ b/Documentation/glossary-content.txt @@ -384,6 +384,27 @@ full pathname may have special meaning: + Glob magic is incompatible with literal magic. +attr;; +After `attr:` comes a space separated list of "attribute +requirements", all of which must be met in order for the +path to be considered a match; this is in addition to the +usual non-magic pathspec pattern matching. +See linkgit:gitattributes[5]. ++ +Each of the attribute requirements for the path takes one of +these forms: + +- "`ATTR`" requires that the attribute `ATTR` be set. + +- "`-ATTR`" requires that the attribute `ATTR` be unset. + +- "`ATTR=VALUE`" requires that the attribute `ATTR` be + set to the string `VALUE`. + +- "`!ATTR`" requires that the attribute `ATTR` be + unspecified. ++ + exclude;; After a path matches any non-exclude pathspec, it will be run through all exclude pathspec (magic signature: `!` or its diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt index ba11b9c95e..75d211f1a8 100644 --- a/Documentation/revisions.txt +++ b/Documentation/revisions.txt @@ -96,7 +96,8 @@ some output processing may assume ref names in UTF-8. refers to the branch that the branch specified by branchname is set to build on top of (configured with `branch.<name>.remote` and `branch.<name>.merge`). A missing branchname defaults to the - current one. + current one. These suffixes are also accepted when spelled in uppercase, and + they mean the same thing no matter the case. '<branchname>@\{push\}', e.g. 'master@\{push\}', '@\{push\}':: The suffix '@\{push}' reports the branch "where we would push to" if @@ -122,6 +123,9 @@ 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. ++ +This suffix is also accepted when spelled in uppercase, and means the same +thing no matter the case. '<rev>{caret}', e.g. 'HEAD{caret}, v1.5.1{caret}0':: A suffix '{caret}' to a revision parameter means the first parent of diff --git a/Documentation/technical/api-hashmap.txt b/Documentation/technical/api-hashmap.txt index a3f020cd9e..ccc634bbd7 100644 --- a/Documentation/technical/api-hashmap.txt +++ b/Documentation/technical/api-hashmap.txt @@ -21,6 +21,9 @@ that the hashmap is initialized. It may also be useful for statistical purposes `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. ++ +When `disallow_rehash` is set, automatic rehashes are prevented during inserts +and deletes. `struct hashmap_entry`:: @@ -57,6 +60,7 @@ Functions `unsigned int strihash(const char *buf)`:: `unsigned int memhash(const void *buf, size_t len)`:: `unsigned int memihash(const void *buf, size_t len)`:: +`unsigned int memihash_cont(unsigned int hash_seed, 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). @@ -65,6 +69,9 @@ Functions `memihash` operate on arbitrary-length memory. + `strihash` and `memihash` are case insensitive versions. ++ +`memihash_cont` is a variant of `memihash` that allows a computation to be +continued with another chunk of data. `unsigned int sha1hash(const unsigned char *sha1)`:: @@ -184,6 +191,21 @@ passed to `hashmap_cmp_fn` to decide whether the entry matches the key. + Returns the removed entry, or NULL if not found. +`void hashmap_disallow_rehash(struct hashmap *map, unsigned value)`:: + + Disallow/allow automatic rehashing of the hashmap during inserts + and deletes. ++ +This is useful if the caller knows that the hashmap will be accessed +by multiple threads. ++ +The caller is still responsible for any necessary locking; this simply +prevents unexpected rehashing. The caller is also responsible for properly +sizing the initial hashmap to ensure good performance. ++ +A call to allow rehashing does not force a rehash; that might happen +with the next insert or delete. + `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)`:: diff --git a/Documentation/technical/api-sha1-array.txt b/Documentation/technical/api-oid-array.txt index dcc52943a5..b0c11f868d 100644 --- a/Documentation/technical/api-sha1-array.txt +++ b/Documentation/technical/api-oid-array.txt @@ -1,7 +1,7 @@ -sha1-array API +oid-array API ============== -The sha1-array API provides storage and manipulation of sets of SHA-1 +The oid-array API provides storage and manipulation of sets of object identifiers. The emphasis is on storage and processing efficiency, making them suitable for large lists. Note that the ordering of items is not preserved over some operations. @@ -9,10 +9,10 @@ not preserved over some operations. Data Structures --------------- -`struct sha1_array`:: +`struct oid_array`:: - A single array of SHA-1 hashes. This should be initialized by - assignment from `SHA1_ARRAY_INIT`. The `sha1` member contains + A single array of object IDs. This should be initialized by + assignment from `OID_ARRAY_INIT`. The `oid` member contains the actual data. The `nr` member contains the number of items in the set. The `alloc` and `sorted` members are used internally, and should not be needed by API callers. @@ -20,22 +20,22 @@ Data Structures Functions --------- -`sha1_array_append`:: - Add an item to the set. The sha1 will be placed at the end of +`oid_array_append`:: + Add an item to the set. The object ID will be placed at the end of the array (but note that some operations below may lose this ordering). -`sha1_array_lookup`:: - Perform a binary search of the array for a specific sha1. +`oid_array_lookup`:: + Perform a binary search of the array for a specific object ID. If found, returns the offset (in number of elements) of the - sha1. If not found, returns a negative integer. If the array is - not sorted, this function has the side effect of sorting it. + object ID. If not found, returns a negative integer. If the array + is not sorted, this function has the side effect of sorting it. -`sha1_array_clear`:: +`oid_array_clear`:: Free all memory associated with the array and return it to the initial, empty state. -`sha1_array_for_each_unique`:: +`oid_array_for_each_unique`:: Efficiently iterate over each unique element of the list, executing the callback function for each one. If the array is not sorted, this function has the side effect of sorting it. If @@ -47,25 +47,25 @@ Examples -------- ----------------------------------------- -int print_callback(const unsigned char sha1[20], +int print_callback(const struct object_id *oid, void *data) { - printf("%s\n", sha1_to_hex(sha1)); + printf("%s\n", oid_to_hex(oid)); return 0; /* always continue */ } void some_func(void) { - struct sha1_array hashes = SHA1_ARRAY_INIT; - unsigned char sha1[20]; + struct sha1_array hashes = OID_ARRAY_INIT; + struct object_id oid; /* Read objects into our set */ - while (read_object_from_stdin(sha1)) - sha1_array_append(&hashes, sha1); + while (read_object_from_stdin(oid.hash)) + oid_array_append(&hashes, &oid); /* Check if some objects are in our set */ - while (read_object_from_stdin(sha1)) { - if (sha1_array_lookup(&hashes, sha1) >= 0) + while (read_object_from_stdin(oid.hash)) { + if (oid_array_lookup(&hashes, &oid) >= 0) printf("it's in there!\n"); /* @@ -75,6 +75,6 @@ void some_func(void) * Instead, this will sort once and then skip duplicates * in linear time. */ - sha1_array_for_each_unique(&hashes, print_callback, NULL); + oid_array_for_each_unique(&hashes, print_callback, NULL); } ----------------------------------------- |