diff options
88 files changed, 2226 insertions, 1294 deletions
diff --git a/Documentation/RelNotes-1.5.1.5.txt b/Documentation/RelNotes-1.5.1.5.txt new file mode 100644 index 0000000000..b0ab8eb371 --- /dev/null +++ b/Documentation/RelNotes-1.5.1.5.txt @@ -0,0 +1,42 @@ +GIT v1.5.1.5 Release Notes +========================== + +Fixes since v1.5.1.4 +-------------------- + +* Bugfixes + + - git-send-email did not understand aliases file for mutt, which + allows leading whitespaces. + + - git-format-patch emitted Content-Type and Content-Transfer-Encoding + headers for non ASCII contents, but failed to add MIME-Version. + + - git-name-rev had a buffer overrun with a deep history. + + - contributed script import-tars did not get the directory in + tar archives interpreted correctly. + + - git-svn was reported to segfault for many people on list and + #git; hopefully this has been fixed. + + - "git-svn clone" does not try to minimize the URL + (i.e. connect to higher level hierarchy) by default, as this + can prevent clone to fail if only part of the repository + (e.g. 'trunk') is open to public. + + - "git checkout branch^0" did not detach the head when you are + already on 'branch'; backported the fix from the 'master'. + + - "git-config section.var" did not correctly work when + existing configuration file had both [section] and [section "name"] + next to each other. + + - "git clone ../other-directory" was fooled if the current + directory $PWD points at is a symbolic link. + + - (build) tree_entry_extract() function was both static inline + and extern, which caused trouble compiling with Forte12 + compilers on Sun. + + - Many many documentation fixes and updates. diff --git a/Documentation/RelNotes-1.5.1.6.txt b/Documentation/RelNotes-1.5.1.6.txt new file mode 100644 index 0000000000..55f3ac13e3 --- /dev/null +++ b/Documentation/RelNotes-1.5.1.6.txt @@ -0,0 +1,45 @@ +GIT v1.5.1.6 Release Notes +========================== + +Fixes since v1.5.1.4 +-------------------- + +* Bugfixes + + - git-send-email did not understand aliases file for mutt, which + allows leading whitespaces. + + - git-format-patch emitted Content-Type and Content-Transfer-Encoding + headers for non ASCII contents, but failed to add MIME-Version. + + - git-name-rev had a buffer overrun with a deep history. + + - contributed script import-tars did not get the directory in + tar archives interpreted correctly. + + - git-svn was reported to segfault for many people on list and + #git; hopefully this has been fixed. + + - git-svn also had a bug to crash svnserve by sending a bad + sequence of requests. + + - "git-svn clone" does not try to minimize the URL + (i.e. connect to higher level hierarchy) by default, as this + can prevent clone to fail if only part of the repository + (e.g. 'trunk') is open to public. + + - "git checkout branch^0" did not detach the head when you are + already on 'branch'; backported the fix from the 'master'. + + - "git-config section.var" did not correctly work when + existing configuration file had both [section] and [section "name"] + next to each other. + + - "git clone ../other-directory" was fooled if the current + directory $PWD points at is a symbolic link. + + - (build) tree_entry_extract() function was both static inline + and extern, which caused trouble compiling with Forte12 + compilers on Sun. + + - Many many documentation fixes and updates. diff --git a/Documentation/RelNotes-1.5.2.txt b/Documentation/RelNotes-1.5.2.txt index 42e7fa5bec..6195715dc7 100644 --- a/Documentation/RelNotes-1.5.2.txt +++ b/Documentation/RelNotes-1.5.2.txt @@ -1,18 +1,18 @@ -GIT v1.5.2 Release Notes (draft) +GIT v1.5.2 Release Notes ======================== Updates since v1.5.1 -------------------- -* Plumbing level subproject support. +* Plumbing level superproject support. You can include a subdirectory that has an independent git - repository in your index and tree objects as a - "subproject". This plumbing (i.e. "core") level subproject - support explicitly excludes recursive behaviour. + repository in your index and tree objects of your project + ("superproject"). This plumbing (i.e. "core") level + superproject support explicitly excludes recursive behaviour. - The "subproject" entries in the index and trees are - incompatible with older versions of git. Experimenting with + The "subproject" entries in the index and trees of a superproject + are incompatible with older versions of git. Experimenting with the plumbing level support is encouraged, but be warned that unless everybody in your project updates to this release or later, using this feature would make your project @@ -26,28 +26,30 @@ Updates since v1.5.1 considered a binary or text (the former would be treated by 'git diff' not to produce textual output; the latter can go through the line endings conversion process in repositories - with core.autocrlf set), expand and unexpand '$ident$' keyword + with core.autocrlf set), expand and unexpand '$Id$' keyword with blob object name, specify a custom 3-way merge driver, and specify a custom diff driver. You can also apply arbitrary filter to contents on check-in/check-out codepath but this feature is an extremely sharp-edged razor and needs to be handled with caution (do not use it unless you understand the earlier mailing list discussion on keyword - expansion). + expansion). These conversions apply when checking files in + or out, and exporting via git-archive. * The packfile format now optionally suports 64-bit index. This release supports the "version 2" format of the .idx file. This is automatically enabled when a huge packfile needs more than 32-bit to express offsets of objects in the - pack + pack. -* Comes with an updated git-gui 0.7.0 +* Comes with an updated git-gui 0.7.1 * Updated gitweb: - can show combined diff for merges; - uses font size of user's preference, not hardcoded in pixels; + - can now 'grep'; * New commands and options. @@ -114,7 +116,7 @@ Updates since v1.5.1 - Local "git fetch" from a repository whose object store is one of the alternates (e.g. fetching from the origin in a repository created with "git clone -l -s") avoids - downloading objects unnecessary. + downloading objects unnecessarily. - "git blame" uses .mailmap to canonicalize the author name just like "git shortlog" does. @@ -124,7 +126,7 @@ Updates since v1.5.1 - "git cherry-pick" and "git revert" does not use .msg file in the working tree to prepare commit message; instead it uses - $GIT_DIR/MERGE_MSG as other commands. + $GIT_DIR/MERGE_MSG as other commands do. * Builds @@ -134,7 +136,7 @@ Updates since v1.5.1 - gitk and git-gui can be configured out. - Generated documentation pages automatically get version - information from GIT_VERSION + information from GIT_VERSION. - Parallel build with "make -j" descending into subdirectory was fixed. @@ -151,11 +153,13 @@ Updates since v1.5.1 - The recursive merge strategy updated a worktree file that was changed identically in two branches, when one of them renamed it. We do not do that when there is no rename, so - match that behaviour. + match that behaviour. This avoids excessive rebuilds. - The default pack depth has been increased to 50, as the recent addition of delta_base_cache makes deeper delta chains - much less expensive to access. + much less expensive to access. Depending on the project, it was + reported that this reduces the resulting pack file by 10% + or so. Fixes since v1.5.1 @@ -188,12 +192,6 @@ this release, unless otherwise noted. - "git clean -d -X" now does not remove non-excluded directories. -* Documentation updates - -* Performance Tweaks - --- -exec >/var/tmp/1 -O=v1.5.2-rc2-91-g616e40b -echo O=`git describe refs/heads/master` -git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint + - rebasing (without -m) a series that changes a symlink to a directory + in the middle of a path confused git-apply greatly and refused to + operate. diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index ea2701846f..a0c9f68580 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -57,8 +57,11 @@ OPTIONS the index. -u:: - Update all files that git already knows about. This is what - "git commit -a" does in preparation for making a commit. + Update only files that git already knows about. This is similar + to what "git commit -a" does in preparation for making a commit, + except that the update is limited to paths specified on the + command line. If no paths are specified, all tracked files are + updated. \--:: This option can be used to separate command-line options from @@ -66,6 +69,15 @@ OPTIONS for command-line options). +Configuration +------------- + +The optional configuration variable 'core.excludesfile' indicates a path to a +file containing patterns of file names to exclude from git-add, similar to +$GIT_DIR/info/exclude. Patterns in the exclude file are used in addition to +those in info/exclude. See link:repository-layout.html[repository layout]. + + EXAMPLES -------- git-add Documentation/\\*.txt:: diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt index f0405a35e9..ba79773f79 100644 --- a/Documentation/git-am.txt +++ b/Documentation/git-am.txt @@ -9,9 +9,10 @@ git-am - Apply a series of patches from a mailbox SYNOPSIS -------- [verse] -'git-am' [--signoff] [--dotest=<dir>] [--utf8 | --no-utf8] [--binary] [--3way] - [--interactive] [--whitespace=<option>] [-C<n>] [-p<n>] - <mbox>... +'git-am' [--signoff] [--dotest=<dir>] [--keep] [--utf8 | --no-utf8] + [--3way] [--interactive] [--binary] + [--whitespace=<option>] [-C<n>] [-p<n>] + <mbox>... 'git-am' [--skip | --resolved] DESCRIPTION @@ -40,7 +41,7 @@ OPTIONS -u, --utf8:: Pass `-u` flag to `git-mailinfo` (see gitlink:git-mailinfo[1]). The proposed commit log message taken from the e-mail - are re-coded into UTF-8 encoding (configuration variable + is re-coded into UTF-8 encoding (configuration variable `i18n.commitencoding` can be used to specify project's preferred encoding if it is not UTF-8). + @@ -51,30 +52,32 @@ default. You could use `--no-utf8` to override this. Pass `-n` flag to `git-mailinfo` (see gitlink:git-mailinfo[1]). --b, --binary:: - Pass `--allow-binary-replacement` flag to `git-apply` - (see gitlink:git-apply[1]). - -3, --3way:: When the patch does not apply cleanly, fall back on 3-way merge, if the patch records the identity of blobs it is supposed to apply to, and we have those blobs - locally. + available locally. ---skip:: - Skip the current patch. This is only meaningful when - restarting an aborted patch. +-b, --binary:: + Pass `--allow-binary-replacement` flag to `git-apply` + (see gitlink:git-apply[1]). --whitespace=<option>:: - This flag is passed to the `git-apply` program that applies + This flag is passed to the `git-apply` (see gitlink:git-apply[1]) + program that applies the patch. -C<n>, -p<n>:: - These flags are passed to the `git-apply` program that applies + These flags are passed to the `git-apply` (see gitlink:git-apply[1]) + program that applies the patch. -i, --interactive:: - Run interactively, just like git-applymbox. + Run interactively. + +--skip:: + Skip the current patch. This is only meaningful when + restarting an aborted patch. -r, --resolved:: After a patch failure (e.g. attempting to apply @@ -126,7 +129,7 @@ to crunch. Upon seeing the first patch that does not apply, it aborts in the middle, just like 'git-applymbox' does. You can recover from this in one of two ways: -. skip the current one by re-running the command with '--skip' +. skip the current patch by re-running the command with '--skip' option. . hand resolve the conflict in the working directory, and update diff --git a/Documentation/git-applymbox.txt b/Documentation/git-applymbox.txt index 3bc92d8cf1..ea919ba5d7 100644 --- a/Documentation/git-applymbox.txt +++ b/Documentation/git-applymbox.txt @@ -31,7 +31,7 @@ OPTIONS whitespaces, (3) '[' up to ']', typically '[PATCH]', and then prepends "[PATCH] ". This flag forbids this munging, and is most useful when used to read back 'git - format-patch --mbox' output. + format-patch -k' output. -m:: Patches are applied with `git-apply` command, and unless diff --git a/Documentation/git-archive.txt b/Documentation/git-archive.txt index d3ca9a90ce..721e0351c3 100644 --- a/Documentation/git-archive.txt +++ b/Documentation/git-archive.txt @@ -8,6 +8,7 @@ git-archive - Creates an archive of files from a named tree SYNOPSIS -------- +[verse] 'git-archive' --format=<fmt> [--list] [--prefix=<prefix>/] [<extra>] [--remote=<repo>] <tree-ish> [path...] diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt index 603f87f3b5..8dc5171f5e 100644 --- a/Documentation/git-branch.txt +++ b/Documentation/git-branch.txt @@ -136,7 +136,7 @@ $ git branch -D test <2> + <1> delete remote-tracking branches "todo", "html", "man" <2> delete "test" branch even if the "master" branch does not have all -commits from todo branch. +commits from test branch. Notes diff --git a/Documentation/git-bundle.txt b/Documentation/git-bundle.txt index 92e7a68722..5051e2bada 100644 --- a/Documentation/git-bundle.txt +++ b/Documentation/git-bundle.txt @@ -8,6 +8,7 @@ git-bundle - Move objects and refs by archive SYNOPSIS -------- +[verse] 'git-bundle' create <file> [git-rev-list args] 'git-bundle' verify <file> 'git-bundle' list-heads <file> [refname...] diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 6d32c491a5..644bf126fb 100644 --- a/Documentation/git-clone.txt +++ b/Documentation/git-clone.txt @@ -132,7 +132,7 @@ Make a local clone that borrows from the current directory, without checking thi + ------------ $ git clone -l -s -n . ../copy -$ cd copy +$ cd ../copy $ git show-branch ------------ diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt index 5d6e9dc751..6e660e2d08 100644 --- a/Documentation/git-diff-tree.txt +++ b/Documentation/git-diff-tree.txt @@ -73,7 +73,7 @@ separated with a single space are given. This flag causes "git-diff-tree --stdin" to also show the commit message before the differences. -include::pretty-formats.txt[] +include::pretty-options.txt[] --no-commit-id:: git-diff-tree outputs a line with the commit ID when @@ -104,6 +104,9 @@ include::pretty-formats.txt[] if the diff itself is empty. +include::pretty-formats.txt[] + + Limiting Output --------------- If you're only interested in differences in a subset of files, for diff --git a/Documentation/git-fmt-merge-msg.txt b/Documentation/git-fmt-merge-msg.txt index e560b30c57..4913c2552f 100644 --- a/Documentation/git-fmt-merge-msg.txt +++ b/Documentation/git-fmt-merge-msg.txt @@ -8,6 +8,7 @@ git-fmt-merge-msg - Produce a merge commit message SYNOPSIS -------- +[verse] git-fmt-merge-msg [--summary | --no-summary] <$GIT_DIR/FETCH_HEAD git-fmt-merge-msg [--summary | --no-summray] -F <file> diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index f49b0d944c..6df8e85004 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -7,7 +7,10 @@ git-for-each-ref - Output information on each ref SYNOPSIS -------- -'git-for-each-ref' [--count=<count>]\* [--shell|--perl|--python|--tcl] [--sort=<key>]\* [--format=<format>] [<pattern>] +[verse] +'git-for-each-ref' [--count=<count>]\* + [--shell|--perl|--python|--tcl] + [--sort=<key>]\* [--format=<format>] [<pattern>] DESCRIPTION ----------- diff --git a/Documentation/git-index-pack.txt b/Documentation/git-index-pack.txt index b7a49b9f58..226926964e 100644 --- a/Documentation/git-index-pack.txt +++ b/Documentation/git-index-pack.txt @@ -8,8 +8,10 @@ git-index-pack - Build pack index file for an existing packed archive SYNOPSIS -------- +[verse] 'git-index-pack' [-v] [-o <index-file>] <pack-file> -'git-index-pack' --stdin [--fix-thin] [--keep] [-v] [-o <index-file>] [<pack-file>] +'git-index-pack' --stdin [--fix-thin] [--keep] [-v] [-o <index-file>] + [<pack-file>] DESCRIPTION diff --git a/Documentation/git-instaweb.txt b/Documentation/git-instaweb.txt index 52a6aa6e82..9df0ab2d76 100644 --- a/Documentation/git-instaweb.txt +++ b/Documentation/git-instaweb.txt @@ -7,8 +7,9 @@ git-instaweb - Instantly browse your working repository in gitweb SYNOPSIS -------- -'git-instaweb' [--local] [--httpd=<httpd>] [--port=<port>] [--browser=<browser>] - +[verse] +'git-instaweb' [--local] [--httpd=<httpd>] [--port=<port>] + [--browser=<browser>] 'git-instaweb' [--start] [--stop] [--restart] DESCRIPTION diff --git a/Documentation/git-local-fetch.txt b/Documentation/git-local-fetch.txt index dd9e2387fc..51389ef37d 100644 --- a/Documentation/git-local-fetch.txt +++ b/Documentation/git-local-fetch.txt @@ -8,7 +8,9 @@ git-local-fetch - Duplicate another git repository on a local system SYNOPSIS -------- -'git-local-fetch' [-c] [-t] [-a] [-d] [-v] [-w filename] [--recover] [-l] [-s] [-n] commit-id path +[verse] +'git-local-fetch' [-c] [-t] [-a] [-d] [-v] [-w filename] [--recover] [-l] [-s] [-n] + commit-id path DESCRIPTION ----------- diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt index dd06527a1e..0f353f6558 100644 --- a/Documentation/git-log.txt +++ b/Documentation/git-log.txt @@ -25,7 +25,7 @@ This manual page describes only the most frequently used options. OPTIONS ------- -include::pretty-formats.txt[] +include::pretty-options.txt[] -<n>:: Limits the number of commits to show. @@ -58,6 +58,9 @@ include::pretty-formats.txt[] Show only commits that affect the specified paths. +include::pretty-formats.txt[] + + Examples -------- git log --no-merges:: diff --git a/Documentation/git-mailinfo.txt b/Documentation/git-mailinfo.txt index ba18133ead..8eadcebfcf 100644 --- a/Documentation/git-mailinfo.txt +++ b/Documentation/git-mailinfo.txt @@ -30,7 +30,7 @@ OPTIONS whitespaces, (3) '[' up to ']', typically '[PATCH]', and then prepends "[PATCH] ". This flag forbids this munging, and is most useful when used to read back 'git - format-patch --mbox' output. + format-patch -k' output. -u:: The commit log message, author name and author email are diff --git a/Documentation/git-name-rev.txt b/Documentation/git-name-rev.txt index 5b5c4c865f..d6c8bf800f 100644 --- a/Documentation/git-name-rev.txt +++ b/Documentation/git-name-rev.txt @@ -8,6 +8,7 @@ git-name-rev - Find symbolic names for given revs SYNOPSIS -------- +[verse] 'git-name-rev' [--tags] [--refs=<pattern>] ( --all | --stdin | <committish>... ) diff --git a/Documentation/git-p4import.txt b/Documentation/git-p4import.txt index 6edb9f12b8..714abbe28e 100644 --- a/Documentation/git-p4import.txt +++ b/Documentation/git-p4import.txt @@ -8,10 +8,10 @@ git-p4import - Import a Perforce repository into git SYNOPSIS -------- -`git-p4import` [-q|-v] [--notags] [--authors <file>] [-t <timezone>] <//p4repo/path> <branch> - +[verse] +`git-p4import` [-q|-v] [--notags] [--authors <file>] [-t <timezone>] + <//p4repo/path> <branch> `git-p4import` --stitch <//p4repo/path> - `git-p4import` diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index f8cc2b5432..e9ad10672a 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -8,7 +8,9 @@ git-push - Update remote refs along with associated objects SYNOPSIS -------- -'git-push' [--all] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...] +[verse] +'git-push' [--all] [--tags] [--receive-pack=<git-receive-pack>] + [--repo=all] [-f | --force] [-v] [<repository> <refspec>...] DESCRIPTION ----------- diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 2f417a8f85..753b275a0f 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -7,8 +7,8 @@ git-rebase - Forward-port local commits to the updated upstream head SYNOPSIS -------- +[verse] 'git-rebase' [-v] [--merge] [-C<n>] [--onto <newbase>] <upstream> [<branch>] - 'git-rebase' --continue | --skip | --abort DESCRIPTION diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt index 1b12b4f2a4..c3c2043d18 100644 --- a/Documentation/git-rev-list.txt +++ b/Documentation/git-rev-list.txt @@ -87,7 +87,7 @@ Using these options, gitlink:git-rev-list[1] will act similar to the more specialized family of commit log tools: gitlink:git-log[1], gitlink:git-show[1], and gitlink:git-whatchanged[1] -include::pretty-formats.txt[] +include::pretty-options.txt[] --relative-date:: @@ -207,12 +207,12 @@ limiting may be applied. --author='pattern', --committer='pattern':: Limit the commits output to ones with author/committer - header lines that match the specified pattern. + header lines that match the specified pattern (regular expression). --grep='pattern':: Limit the commits output to ones with log message that - matches the specified pattern. + matches the specified pattern (regular expression). --remove-empty:: @@ -367,6 +367,10 @@ These options are mostly targeted for packing of git repositories. Only useful with '--objects'; print the object IDs that are not in packs. + +include::pretty-formats.txt[] + + Author ------ Written by Linus Torvalds <torvalds@osdl.org> diff --git a/Documentation/git-show.txt b/Documentation/git-show.txt index 5a219ab577..34c5caf2d0 100644 --- a/Documentation/git-show.txt +++ b/Documentation/git-show.txt @@ -38,6 +38,9 @@ OPTIONS For a more complete list of ways to spell object names, see "SPECIFYING REVISIONS" section in gitlink:git-rev-parse[1]. +include::pretty-options.txt[] + + include::pretty-formats.txt[] diff --git a/Documentation/git.txt b/Documentation/git.txt index 273ca173d4..98860af045 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -35,42 +35,43 @@ documentation can be viewed at ifdef::stalenotes[] [NOTE] ============ -You are reading the documentation for the latest version of git. -Documentation for older releases are available here: - -* link:RelNotes-1.5.1.txt[release notes for 1.5.1] - -* link:v1.5.1.4/git.html[documentation for release 1.5.1.4] - -* link:RelNotes-1.5.1.4.txt[release notes for 1.5.1.4] - -* link:RelNotes-1.5.1.3.txt[release notes for 1.5.1.3] - -* link:RelNotes-1.5.1.2.txt[release notes for 1.5.1.2] - -* link:RelNotes-1.5.1.1.txt[release notes for 1.5.1.1] - -* link:RelNotes-1.5.0.7.txt[release notes for 1.5.0.7] - -* link:RelNotes-1.5.0.6.txt[release notes for 1.5.0.6] -* link:RelNotes-1.5.0.5.txt[release notes for 1.5.0.5] - -* link:RelNotes-1.5.0.3.txt[release notes for 1.5.0.3] - -* link:RelNotes-1.5.0.2.txt[release notes for 1.5.0.2] - -* link:RelNotes-1.5.0.1.txt[release notes for 1.5.0.1] - -* link:RelNotes-1.5.0.txt[release notes for 1.5.0] - -* link:v1.4.4.4/git.html[documentation for release 1.4.4.4] - -* link:v1.3.3/git.html[documentation for release 1.3.3] - -* link:v1.2.6/git.html[documentation for release 1.2.6] +You are reading the documentation for the latest (possibly +unreleased) version of git, that is available from 'master' +branch of the `git.git` repository. +Documentation for older releases are available here: -* link:v1.0.13/git.html[documentation for release 1.0.13] +* link:v1.5.2/git.html[documentation for release 1.5.2] + +* release notes for + link:RelNotes-1.5.2.txt[1.5.2]. + +* link:v1.5.1.6/git.html[documentation for release 1.5.1.6] + +* release notes for + link:RelNotes-1.5.1.6.txt[1.5.1.6], + link:RelNotes-1.5.1.5.txt[1.5.1.5], + link:RelNotes-1.5.1.4.txt[1.5.1.4], + link:RelNotes-1.5.1.3.txt[1.5.1.3], + link:RelNotes-1.5.1.2.txt[1.5.1.2], + link:RelNotes-1.5.1.1.txt[1.5.1.1], + link:RelNotes-1.5.1.txt[1.5.1]. + +* link:v1.5.0.7/git.html[documentation for release 1.5.0.7] + +* release notes for + link:RelNotes-1.5.0.7.txt[1.5.0.7], + link:RelNotes-1.5.0.6.txt[1.5.0.6], + link:RelNotes-1.5.0.5.txt[1.5.0.5], + link:RelNotes-1.5.0.3.txt[1.5.0.3], + link:RelNotes-1.5.0.2.txt[1.5.0.2], + link:RelNotes-1.5.0.1.txt[1.5.0.1], + link:RelNotes-1.5.0.txt[1.5.0]. + +* documentation for release link:v1.4.4.4/git.html[1.4.4.4], + link:v1.3.3/git.html[1.3.3], + link:v1.2.6/git.html[1.2.6], + link:v1.0.13/git.html[1.0.13]. ============ diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 87723105d1..d3ac9c7181 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -138,11 +138,11 @@ upon checkout. ^^^^^^^ When the attribute `ident` is set to a path, git replaces -`$ident$` in the blob object with `$ident:`, followed by +`$Id$` in the blob object with `$Id:`, followed by 40-character hexadecimal blob object name, followed by a dollar sign `$` upon checkout. Any byte sequence that begins with -`$ident:` and ends with `$` in the worktree file is replaced -with `$ident$` upon check-in. +`$Id:` and ends with `$` in the worktree file is replaced +with `$Id$` upon check-in. Interaction between checkin/checkout attributes diff --git a/Documentation/glossary.txt b/Documentation/glossary.txt index 2465514e46..489c3e9d5b 100644 --- a/Documentation/glossary.txt +++ b/Documentation/glossary.txt @@ -2,12 +2,12 @@ GIT Glossary ============ [[def_alternate_object_database]]alternate object database:: - Via the alternates mechanism, a <<def_repository,repository>> can - inherit part of its <<def_object_database,object database>> from another - <<def_object_database,object database>>, which is called "alternate". + Via the alternates mechanism, a <<def_repository,repository>> + can inherit part of its <<def_object_database,object database>> + from another object database, which is called "alternate". [[def_bare_repository]]bare repository:: - A <<def_bare_repository,bare repository>> is normally an appropriately + A bare repository is normally an appropriately named <<def_directory,directory>> with a `.git` suffix that does not have a locally checked-out copy of any of the files under <<def_revision,revision>> control. That is, all of the `git` @@ -21,10 +21,15 @@ GIT Glossary Untyped <<def_object,object>>, e.g. the contents of a file. [[def_branch]]branch:: - A non-cyclical graph of revisions, i.e. the complete history of a - particular <<def_revision,revision>>, which is called the - branch <<def_head,head>>. The heads - are stored in `$GIT_DIR/refs/heads/`. + A "branch" is an active line of development. The most recent + <<def_commit,commit>> on a branch is referred to as the tip of + that branch. The tip of the branch is referenced by a branch + <<def_head,head>>, which moves forward as additional development + is done on the branch. A single git + <<def_repository,repository>> can track an arbitrary number of + branches, but your <<def_working_tree,working tree>> is + associated with just one of them (the "current" or "checked out" + branch), and <<def_HEAD,HEAD>> points to that branch. [[def_cache]]cache:: Obsolete for: <<def_index,index>>. @@ -50,18 +55,25 @@ GIT Glossary as a new series of changes on top of different codebase. In GIT, this is performed by "git cherry-pick" command to extract the change introduced by an existing <<def_commit,commit>> and to record it based on the tip - of the current <<def_branch,branch>> as a new <<def_commit,commit>>. + of the current <<def_branch,branch>> as a new commit. [[def_clean]]clean:: - A <<def_working_tree,working tree>> is <<def_clean,clean>>, if it + A <<def_working_tree,working tree>> is clean, if it corresponds to the <<def_revision,revision>> referenced by the current <<def_head,head>>. Also see "<<def_dirty,dirty>>". [[def_commit]]commit:: - As a verb: The action of storing the current state of the - <<def_index,index>> in the <<def_object_database,object database>>. The - result is a <<def_revision,revision>>. As a noun: Short hand for - <<def_commit_object,commit object>>. + As a noun: A single point in the + git history; the entire history of a project is represented as a + set of interrelated commits. The word "commit" is often + used by git in the same places other revision control systems + use the words "revision" or "version". Also used as a short + hand for <<def_commit_object,commit object>>. ++ +As a verb: The action of storing a new snapshot of the project's +state in the git history, by creating a new commit representing the current +state of the <<def_index,index>> and advancing <<def_HEAD,HEAD>> +to point at the new commit. [[def_commit_object]]commit object:: An <<def_object,object>> which contains the information about a @@ -77,16 +89,22 @@ GIT Glossary [[def_DAG]]DAG:: Directed acyclic graph. The <<def_commit,commit>> objects form a directed acyclic graph, because they have parents (directed), and the - graph of <<def_commit,commit>> objects is acyclic (there is no + graph of commit objects is acyclic (there is no <<def_chain,chain>> which begins and ends with the same <<def_object,object>>). [[def_dangling_object]]dangling object:: An <<def_unreachable_object,unreachable object>> which is not <<def_reachable,reachable>> even from other unreachable objects; a - <<def_dangling_object,dangling object>> has no references to it from any + dangling object has no references to it from any reference or <<def_object,object>> in the <<def_repository,repository>>. +[[def_detached_HEAD]]detached HEAD:: + Normally the <<def_HEAD,HEAD>> stores the name of a + <<def_branch,branch>>. However, git also allows you to check + out an arbitrary commit that isn't necessarily the tip of any + particular branch. In this case HEAD is said to be "detached". + [[def_dircache]]dircache:: You are *waaaaay* behind. @@ -94,7 +112,7 @@ GIT Glossary The list you get with "ls" :-) [[def_dirty]]dirty:: - A <<def_working_tree,working tree>> is said to be <<def_dirty,dirty>> if + A <<def_working_tree,working tree>> is said to be "dirty" if it contains modifications which have not been committed to the current <<def_branch,branch>>. @@ -109,16 +127,16 @@ GIT Glossary <<def_branch,branch>>'s changes that happen to be a descendant of what you have. In such these cases, you do not make a new <<def_merge,merge>> <<def_commit,commit>> but instead just update to his - <<def_revision,revision>>. This will happen frequently on a + revision. This will happen frequently on a <<def_tracking_branch,tracking branch>> of a remote <<def_repository,repository>>. [[def_fetch]]fetch:: Fetching a <<def_branch,branch>> means to get the - <<def_branch,branch>>'s <<def_head_ref,head ref>> from a remote - <<def_repository,repository>>, to find out which objects are missing - from the local <<def_object_database,object database>>, and to get them, - too. + branch's <<def_head_ref,head ref>> from a remote + <<def_repository,repository>>, to find out which objects are + missing from the local <<def_object_database,object database>>, + and to get them, too. See also gitlink:git-fetch[1]. [[def_file_system]]file system:: Linus Torvalds originally designed git to be a user space file system, @@ -132,61 +150,83 @@ GIT Glossary Grafts enables two otherwise different lines of development to be joined together by recording fake ancestry information for commits. This way you can make git pretend the set of parents a <<def_commit,commit>> has - is different from what was recorded when the <<def_commit,commit>> was + is different from what was recorded when the commit was created. Configured via the `.git/info/grafts` file. [[def_hash]]hash:: In git's context, synonym to <<def_object_name,object name>>. [[def_head]]head:: - The top of a <<def_branch,branch>>. It contains a <<def_ref,ref>> to the - corresponding <<def_commit_object,commit object>>. + A named reference to the <<def_commit,commit>> at the tip of a + <<def_branch,branch>>. Heads are stored in + `$GIT_DIR/refs/heads/`, except when using packed refs. (See + gitlink:git-pack-refs[1].) + +[[def_HEAD]]HEAD:: + The current branch. In more detail: Your <<def_working_tree, + working tree>> is normally derived from the state of the tree + referred to by HEAD. HEAD is a reference to one of the + <<def_head,heads>> in your repository, except when using a + <<def_detached_HEAD,detached HEAD>>, in which case it may + reference an arbitrary commit. [[def_head_ref]]head ref:: - A <<def_ref,ref>> pointing to a <<def_head,head>>. Often, this is - abbreviated to "<<def_head,head>>". Head refs are stored in - `$GIT_DIR/refs/heads/`. + A synonym for <<def_head,head>>. [[def_hook]]hook:: During the normal execution of several git commands, call-outs are made to optional scripts that allow a developer to add functionality or checking. Typically, the hooks allow for a command to be pre-verified and potentially aborted, and allow for a post-notification after the - operation is done. The <<def_hook,hook>> scripts are found in the + operation is done. The hook scripts are found in the `$GIT_DIR/hooks/` <<def_directory,directory>>, and are enabled by simply making them executable. [[def_index]]index:: A collection of files with stat information, whose contents are stored - as objects. The <<def_index,index>> is a stored version of your working + as objects. The index is a stored version of your working <<def_tree,tree>>. Truth be told, it can also contain a second, and even a third version of a <<def_working_tree,working tree>>, which are used when merging. [[def_index_entry]]index entry:: The information regarding a particular file, stored in the - <<def_index,index>>. An <<def_index_entry,index entry>> can be unmerged, - if a <<def_merge,merge>> was started, but not yet finished (i.e. if the - <<def_index,index>> contains multiple versions of that file). + <<def_index,index>>. An index entry can be unmerged, if a + <<def_merge,merge>> was started, but not yet finished (i.e. if + the index contains multiple versions of that file). [[def_master]]master:: - The default development <<def_branch,branch>>. Whenever you create a git - <<def_repository,repository>>, a <<def_branch,branch>> named - "<<def_master,master>>" is created, and becomes the active - <<def_branch,branch>>. In most cases, this contains the local - development, though that is purely conventional and not required. + The default development <<def_branch,branch>>. Whenever you + create a git <<def_repository,repository>>, a branch named + "master" is created, and becomes the active branch. In most + cases, this contains the local development, though that is + purely by convention and is not required. [[def_merge]]merge:: - To <<def_merge,merge>> branches means to try to accumulate the changes - since a common ancestor and apply them to the first - <<def_branch,branch>>. An automatic <<def_merge,merge>> uses heuristics - to accomplish that. Evidently, an automatic <<def_merge,merge>> can - fail. + As a verb: To bring the contents of another + <<def_branch,branch>> (possibly from an external + <<def_repository,repository>>) into the current branch. In the + case where the merged-in branch is from a different repository, + this is done by first <<def_fetch,fetching>> the remote branch + and then merging the result into the current branch. This + combination of fetch and merge operations is called a + <<def_pull,pull>>. Merging is performed by an automatic process + that identifies changes made since the branches diverged, and + then applies all those changes together. In cases where changes + conflict, manual intervention may be required to complete the + merge. ++ +As a noun: unless it is a <<def_fast_forward,fast forward>>, a +successful merge results in the creation of a new <<def_commit,commit>> +representing the result of the merge, and having as +<<def_parent,parents>> the tips of the merged <<def_branch,branches>>. +This commit is referred to as a "merge commit", or sometimes just a +"merge". [[def_object]]object:: The unit of storage in git. It is uniquely identified by the <<def_SHA1,SHA1>> of its contents. Consequently, an - <<def_object,object>> can not be changed. + object can not be changed. [[def_object_database]]object database:: Stores a set of "objects", and an individual <<def_object,object>> is @@ -198,9 +238,9 @@ GIT Glossary [[def_object_name]]object name:: The unique identifier of an <<def_object,object>>. The <<def_hash,hash>> - of the <<def_object,object>>'s contents using the Secure Hash Algorithm + of the object's contents using the Secure Hash Algorithm 1 and usually represented by the 40 character hexadecimal encoding of - the <<def_hash,hash>> of the <<def_object,object>> (possibly followed by + the <<def_hash,hash>> of the object (possibly followed by a white space). [[def_object_type]]object type:: @@ -215,7 +255,7 @@ GIT Glossary [[def_origin]]origin:: The default upstream <<def_repository,repository>>. Most projects have at least one upstream project which they track. By default - '<<def_origin,origin>>' is used for that purpose. New upstream updates + 'origin' is used for that purpose. New upstream updates will be fetched into remote tracking branches named origin/name-of-upstream-branch, which you can see using "git <<def_branch,branch>> -r". @@ -227,7 +267,7 @@ GIT Glossary [[def_pack_index]]pack index:: The list of identifiers, and other information, of the objects in a <<def_pack,pack>>, to assist in efficiently accessing the contents of a - <<def_pack,pack>>. + pack. [[def_parent]]parent:: A <<def_commit_object,commit object>> contains a (possibly empty) list @@ -247,29 +287,29 @@ GIT Glossary [[def_porcelain]]porcelain:: Cute name for programs and program suites depending on <<def_core_git,core git>>, presenting a high level access to - <<def_core_git,core git>>. Porcelains expose more of a <<def_SCM,SCM>> + core git. Porcelains expose more of a <<def_SCM,SCM>> interface than the <<def_plumbing,plumbing>>. [[def_pull]]pull:: Pulling a <<def_branch,branch>> means to <<def_fetch,fetch>> it and - <<def_merge,merge>> it. + <<def_merge,merge>> it. See also gitlink:git-pull[1]. [[def_push]]push:: - Pushing a <<def_branch,branch>> means to get the <<def_branch,branch>>'s + Pushing a <<def_branch,branch>> means to get the branch's <<def_head_ref,head ref>> from a remote <<def_repository,repository>>, - find out if it is an ancestor to the <<def_branch,branch>>'s local - <<def_head_ref,head ref>> is a direct, and in that case, putting all + find out if it is an ancestor to the branch's local + head ref is a direct, and in that case, putting all objects, which are <<def_reachable,reachable>> from the local - <<def_head_ref,head ref>>, and which are missing from the remote - <<def_repository,repository>>, into the remote + head ref, and which are missing from the remote + repository, into the remote <<def_object_database,object database>>, and updating the remote - <<def_head_ref,head ref>>. If the remote <<def_head,head>> is not an - ancestor to the local <<def_head,head>>, the <<def_push,push>> fails. + head ref. If the remote <<def_head,head>> is not an + ancestor to the local head, the push fails. [[def_reachable]]reachable:: All of the ancestors of a given <<def_commit,commit>> are said to be - <<def_reachable,reachable>> from that <<def_commit,commit>>. More - generally, one <<def_object,object>> is <<def_reachable,reachable>> from + "reachable" from that commit. More + generally, one <<def_object,object>> is reachable from another if we can reach the one from the other by a <<def_chain,chain>> that follows <<def_tag,tags>> to whatever they tag, <<def_commit_object,commits>> to their parents or trees, and @@ -288,24 +328,23 @@ GIT Glossary [[def_refspec]]refspec:: A <<def_refspec,refspec>> is used by <<def_fetch,fetch>> and - <<def_push,push>> to describe the mapping between remote <<def_ref,ref>> - and local <<def_ref,ref>>. They are combined with a colon in the format - <src>:<dst>, preceded by an optional plus sign, +. For example: `git - fetch $URL refs/heads/master:refs/heads/origin` means - "grab the master <<def_branch,branch>> <<def_head,head>> - from the $URL and store it as my origin - <<def_branch,branch>> <<def_head,head>>". And `git <<def_push,push>> - $URL refs/heads/master:refs/heads/to-upstream` means - "publish my master <<def_branch,branch>> - <<def_head,head>> as to-upstream <<def_branch,branch>> at $URL". See - also gitlink:git-push[1] + <<def_push,push>> to describe the mapping between remote + <<def_ref,ref>> and local ref. They are combined with a colon in + the format <src>:<dst>, preceded by an optional plus sign, +. + For example: `git fetch $URL + refs/heads/master:refs/heads/origin` means "grab the master + <<def_branch,branch>> <<def_head,head>> from the $URL and store + it as my origin branch head". And `git push + $URL refs/heads/master:refs/heads/to-upstream` means "publish my + master branch head as to-upstream branch at $URL". See also + gitlink:git-push[1] [[def_repository]]repository:: - A collection of refs together with an <<def_object_database,object - database>> containing all objects which are <<def_reachable,reachable>> - from the refs, possibly accompanied by meta data from one or more - porcelains. A <<def_repository,repository>> can share an - <<def_object_database,object database>> with other repositories. + A collection of refs together with an + <<def_object_database,object database>> containing all objects + which are <<def_reachable,reachable>> from the refs, possibly + accompanied by meta data from one or more porcelains. A + repository can share an object database with other repositories. [[def_resolve]]resolve:: The action of fixing up manually what a failed automatic @@ -327,36 +366,37 @@ GIT Glossary Synonym for <<def_object_name,object name>>. [[def_shallow_repository]]shallow repository:: - A <<def_shallow_repository,shallow repository>> has an incomplete + A shallow repository has an incomplete history some of whose commits have parents cauterized away (in other words, git is told to pretend that these commits do not have the parents, even though they are recorded in the <<def_commit_object,commit object>>). This is sometimes useful when you are interested only in the recent history of a project even though the real history recorded in the - upstream is much larger. A <<def_shallow_repository,shallow repository>> + upstream is much larger. A shallow repository is created by giving the `--depth` option to gitlink:git-clone[1], and its history can be later deepened with gitlink:git-fetch[1]. [[def_symref]]symref:: - Symbolic reference: instead of containing the <<def_SHA1,SHA1>> id - itself, it is of the format 'ref: refs/some/thing' and when - referenced, it recursively dereferences to this reference. 'HEAD' is a - prime example of a <<def_symref,symref>>. Symbolic references are - manipulated with the gitlink:git-symbolic-ref[1] command. + Symbolic reference: instead of containing the <<def_SHA1,SHA1>> + id itself, it is of the format 'ref: refs/some/thing' and when + referenced, it recursively dereferences to this reference. + '<<def_HEAD,HEAD>>' is a prime example of a symref. Symbolic + references are manipulated with the gitlink:git-symbolic-ref[1] + command. [[def_tag]]tag:: - A <<def_ref,ref>> pointing to a <<def_tag,tag>> or + A <<def_ref,ref>> pointing to a tag or <<def_commit_object,commit object>>. In contrast to a <<def_head,head>>, a tag is not changed by a <<def_commit,commit>>. Tags (not <<def_tag_object,tag objects>>) are stored in `$GIT_DIR/refs/tags/`. A git tag has nothing to do with a Lisp tag (which would be called an <<def_object_type,object type>> in git's context). A tag is most typically used to mark a particular point in the - <<def_commit,commit>> ancestry <<def_chain,chain>>. + commit ancestry <<def_chain,chain>>. [[def_tag_object]]tag object:: An <<def_object,object>> containing a <<def_ref,ref>> pointing to - another <<def_object,object>>, which can contain a message just like a + another object, which can contain a message just like a <<def_commit_object,commit object>>. It can also contain a (PGP) signature, in which case it is called a "signed <<def_tag_object,tag object>>". @@ -370,16 +410,16 @@ GIT Glossary [[def_tracking_branch]]tracking branch:: A regular git <<def_branch,branch>> that is used to follow changes from - another <<def_repository,repository>>. A <<def_tracking_branch,tracking - branch>> should not contain direct modifications or have local commits - made to it. A <<def_tracking_branch,tracking branch>> can usually be + another <<def_repository,repository>>. A tracking + branch should not contain direct modifications or have local commits + made to it. A tracking branch can usually be identified as the right-hand-side <<def_ref,ref>> in a Pull: <<def_refspec,refspec>>. [[def_tree]]tree:: Either a <<def_working_tree,working tree>>, or a <<def_tree_object,tree - object>> together with the dependent blob and <<def_tree,tree>> objects - (i.e. a stored representation of a <<def_working_tree,working tree>>). + object>> together with the dependent blob and tree objects + (i.e. a stored representation of a working tree). [[def_tree_object]]tree object:: An <<def_object,object>> containing a list of file names and modes along @@ -389,8 +429,7 @@ GIT Glossary [[def_tree-ish]]tree-ish:: A <<def_ref,ref>> pointing to either a <<def_commit_object,commit object>>, a <<def_tree_object,tree object>>, or a <<def_tag_object,tag - object>> pointing to a <<def_tag,tag>> or <<def_commit,commit>> or - <<def_tree_object,tree object>>. + object>> pointing to a tag or commit or tree object. [[def_unmerged_index]]unmerged index:: An <<def_index,index>> which contains unmerged @@ -401,5 +440,6 @@ GIT Glossary <<def_branch,branch>>, <<def_tag,tag>>, or any other reference. [[def_working_tree]]working tree:: - The set of files and directories currently being worked on, i.e. you can - work in your <<def_working_tree,working tree>> without using git at all. + The tree of actual checked out files. The working tree is + normally equal to the <<def_HEAD,HEAD>> plus any local changes + that you have made but not yet committed. diff --git a/Documentation/hooks.txt b/Documentation/hooks.txt index b083290d12..aabb9750fd 100644 --- a/Documentation/hooks.txt +++ b/Documentation/hooks.txt @@ -90,6 +90,36 @@ parameter, and is invoked after a commit is made. This hook is meant primarily for notification, and cannot affect the outcome of `git-commit`. +[[pre-receive]] +pre-receive +----------- + +This hook is invoked by `git-receive-pack` on the remote repository, +which happens when a `git push` is done on a local repository. +Just before starting to update refs on the remote repository, the +pre-receive hook is invoked. Its exit status determines the success +or failure of the update. + +This hook executes once for the receive operation. It takes no +arguments, but for each ref to be updated it receives on standard +input a line of the format: + + <old-value> SP <new-value> SP <ref-name> LF + +where `<old-value>` is the old object name stored in the ref, +`<new-value>` is the new object name to be stored in the ref and +`<ref-name>` is the full name of the ref. +When creating a new ref, `<old-value>` is 40 `0`. + +If the hook exits with non-zero status, none of the refs will be +updated. If the hook exits with zero, updating of individual refs can +still be prevented by the <<update,'update'>> hook. + +Both standard output and standard error output are forwarded to +`git-send-pack` on the other end, so you can simply `echo` messages +for the user. + +[[update]] update ------ @@ -108,7 +138,7 @@ three parameters: A zero exit from the update hook allows the ref to be updated. Exiting with a non-zero status prevents `git-receive-pack` -from updating the ref. +from updating that ref. This hook can be used to prevent 'forced' update on certain refs by making sure that the object name is a commit object that is a @@ -117,19 +147,52 @@ That is, to enforce a "fast forward only" policy. It could also be used to log the old..new status. However, it does not know the entire set of branches, so it would end up -firing one e-mail per ref when used naively, though. +firing one e-mail per ref when used naively, though. The +<<post-receive,'post-receive'>> hook is more suited to that. Another use suggested on the mailing list is to use this hook to implement access control which is finer grained than the one based on filesystem group. -The standard output of this hook is sent to `stderr`, so if you -want to report something to the `git-send-pack` on the other end, -you can simply `echo` your messages. +Both standard output and standard error output are forwarded to +`git-send-pack` on the other end, so you can simply `echo` messages +for the user. + +The default 'update' hook, when enabled--and with +`hooks.allowunannotated` config option turned on--prevents +unannotated tags to be pushed. + +[[post-receive]] +post-receive +------------ + +This hook is invoked by `git-receive-pack` on the remote repository, +which happens when a `git push` is done on a local repository. +It executes on the remote repository once after all the refs have +been updated. + +This hook executes once for the receive operation. It takes no +arguments, but gets the same information as the +<<pre-receive,'pre-receive'>> +hook does on its standard input. + +This hook does not affect the outcome of `git-receive-pack`, as it +is called after the real work is done. + +This supersedes the <<post-update,'post-update'>> hook in that it get's +both old and new values of all the refs in addition to their +names. + +Both standard output and standard error output are forwarded to +`git-send-pack` on the other end, so you can simply `echo` messages +for the user. -The default 'update' hook, when enabled, demonstrates how to -send out a notification e-mail. +The default 'post-receive' hook is empty, but there is +a sample script `post-receive-email` provided in the `contrib/hooks` +directory in git distribution, which implements sending commit +emails. +[[post-update]] post-update ----------- @@ -146,7 +209,10 @@ the outcome of `git-receive-pack`. The 'post-update' hook can tell what are the heads that were pushed, but it does not know what their original and updated values are, -so it is a poor place to do log old..new. +so it is a poor place to do log old..new. The +<<post-receive,'post-receive'>> hook does get both original and +updated values of the refs. You might consider it instead if you need +them. When enabled, the default 'post-update' hook runs `git-update-server-info` to keep the information used by dumb @@ -154,6 +220,6 @@ transports (e.g., HTTP) up-to-date. If you are publishing a git repository that is accessible via HTTP, you should probably enable this hook. -The standard output of this hook is sent to `/dev/null`; if you -want to report something to the `git-send-pack` on the other end, -you can redirect your output to your `stderr`. +Both standard output and standard error output are forwarded to +`git-send-pack` on the other end, so you can simply `echo` messages +for the user. diff --git a/Documentation/howto/dangling-objects.txt b/Documentation/howto/dangling-objects.txt deleted file mode 100644 index e82ddae3cf..0000000000 --- a/Documentation/howto/dangling-objects.txt +++ /dev/null @@ -1,109 +0,0 @@ -From: Linus Torvalds <torvalds@linux-foundation.org> -Subject: Re: Question about fsck-objects output -Date: Thu, 25 Jan 2007 12:01:06 -0800 (PST) -Message-ID: <Pine.LNX.4.64.0701251144290.25027@woody.linux-foundation.org> -Archived-At: <http://permalink.gmane.org/gmane.comp.version-control.git/37754> -Abstract: Linus describes what dangling objects are, when they - are left behind, and how to view their relationship with branch - heads in gitk - -On Thu, 25 Jan 2007, Larry Streepy wrote: - -> Sorry to ask such a basic question, but I can't quite decipher the output of -> fsck-objects. When I run it, I get this: -> -> git fsck-objects -> dangling commit 2213f6d4dd39ca8baebd0427723723e63208521b -> dangling commit f0d4e00196bd5ee54463e9ea7a0f0e8303da767f -> dangling blob 6a6d0b01b3e96d49a8f2c7addd4ef8c3bd1f5761 -> -> -> Even after a "repack -a -d" they still exist. The man page has a short -> explanation, but, at least for me, it wasn't fully enlightening. :-) -> -> The man page says that dangling commits could be "root" commits, but since my -> repo started as a clone of another repo, I don't see how I could have any root -> commits. Also, the page doesn't really describe what a dangling blob is. -> -> So, can someone explain what these artifacts are and if they are a problem -> that I should be worried about? - -The most common situation is that you've rebased a branch (or you have -pulled from somebody else who rebased a branch, like the "pu" branch in -the git.git archive itself). - -What happens is that the old head of the original branch still exists, as -does obviously everything it pointed to. The branch pointer itself just -doesn't, since you replaced it with another one. - -However, there are certainly other situations too that cause dangling -objects. For example, the "dangling blob" situation you have tends to be -because you did a "git add" of a file, but then, before you actually -committed it and made it part of the bigger picture, you changed something -else in that file and committed that *updated* thing - the old state that -you added originally ends up not being pointed to by any commit/tree, so -it's now a dangling blob object. - -Similarly, when the "recursive" merge strategy runs, and finds that there -are criss-cross merges and thus more than one merge base (which is fairly -unusual, but it does happen), it will generate one temporary midway tree -(or possibly even more, if you had lots of criss-crossing merges and -more than two merge bases) as a temporary internal merge base, and again, -those are real objects, but the end result will not end up pointing to -them, so they end up "dangling" in your repository. - -Generally, dangling objects aren't anything to worry about. They can even -be very useful: if you screw something up, the dangling objects can be how -you recover your old tree (say, you did a rebase, and realized that you -really didn't want to - you can look at what dangling objects you have, -and decide to reset your head to some old dangling state). - -For commits, the most useful thing to do with dangling objects tends to be -to do a simple - - gitk <dangling-commit-sha-goes-here> --not --all - -which means exactly what it sounds like: it says that you want to see the -commit history that is described by the dangling commit(s), but you do NOT -want to see the history that is described by all your branches and tags -(which are the things you normally reach). That basically shows you in a -nice way what the danglign commit was (and notice that it might not be -just one commit: we only report the "tip of the line" as being dangling, -but there might be a whole deep and complex commit history that has gotten -dropped - rebasing will do that). - -For blobs and trees, you can't do the same, but you can examine them. You -can just do - - git show <dangling-blob/tree-sha-goes-here> - -to show what the contents of the blob were (or, for a tree, basically what -the "ls" for that directory was), and that may give you some idea of what -the operation was that left that dangling object. - -Usually, dangling blobs and trees aren't very interesting. They're almost -always the result of either being a half-way mergebase (the blob will -often even have the conflict markers from a merge in it, if you have had -conflicting merges that you fixed up by hand), or simply because you -interrupted a "git fetch" with ^C or something like that, leaving _some_ -of the new objects in the object database, but just dangling and useless. - -Anyway, once you are sure that you're not interested in any dangling -state, you can just prune all unreachable objects: - - git prune - -and they'll be gone. But you should only run "git prune" on a quiescent -repository - it's kind of like doing a filesystem fsck recovery: you don't -want to do that while the filesystem is mounted. - -(The same is true of "git-fsck-objects" itself, btw - but since -git-fsck-objects never actually *changes* the repository, it just reports -on what it found, git-fsck-objects itself is never "dangerous" to run. -Running it while somebody is actually changing the repository can cause -confusing and scary messages, but it won't actually do anything bad. In -contrast, running "git prune" while somebody is actively changing the -repository is a *BAD* idea). - - Linus - diff --git a/Documentation/howto/isolate-bugs-with-bisect.txt b/Documentation/howto/isolate-bugs-with-bisect.txt deleted file mode 100644 index 926bbdc3cb..0000000000 --- a/Documentation/howto/isolate-bugs-with-bisect.txt +++ /dev/null @@ -1,65 +0,0 @@ -From: Linus Torvalds <torvalds () osdl ! org> -To: git@vger.kernel.org -Date: 2005-11-08 1:31:34 -Subject: Real-life kernel debugging scenario -Abstract: Short-n-sweet, Linus tells us how to leverage `git-bisect` to perform - bug isolation on a repository where "good" and "bad" revisions are known - in order to identify a suspect commit. - - -How To Use git-bisect To Isolate a Bogus Commit -=============================================== - -The way to use "git bisect" couldn't be easier. - -Figure out what the oldest bad state you know about is (that's usually the -head of "master", since that's what you just tried to boot and failed at). -Also, figure out the most recent known-good commit (usually the _previous_ -kernel you ran: and if you've only done a single "pull" in between, it -will be ORIG_HEAD). - -Then do - - git bisect start - git bisect bad master <- mark "master" as the bad state - git bisect good ORIG_HEAD <- mark ORIG_HEAD as good (or - whatever other known-good - thing you booted last) - -and at this point "git bisect" will churn for a while, and tell you what -the mid-point between those two commits are, and check that state out as -the head of the new "bisect" branch. - -Compile and reboot. - -If it's good, just do - - git bisect good <- mark current head as good - -otherwise, reboot into a good kernel instead, and do (surprise surprise, -git really is very intuitive): - - git bisect bad <- mark current head as bad - -and whatever you do, git will select a new half-way point. Do this for a -while, until git tells you exactly which commit was the first bad commit. -That's your culprit. - -It really works wonderfully well, except for the case where there was -_another_ commit that broke something in between, like introduced some -stupid compile error. In that case you should not mark that commit good or -bad: you should try to find another commit close-by, and do a "git reset ---hard <newcommit>" to try out _that_ commit instead, and then test that -instead (and mark it good or bad). - -You can do "git bisect visualize" while you do all this to see what's -going on by starting up gitk on the bisection range. - -Finally, once you've figured out exactly which commit was bad, you can -then go back to the master branch, and try reverting just that commit: - - git checkout master - git revert <bad-commit-id> - -to verify that the top-of-kernel works with that single commit reverted. - diff --git a/Documentation/howto/make-dist.txt b/Documentation/howto/make-dist.txt deleted file mode 100644 index 00e330b293..0000000000 --- a/Documentation/howto/make-dist.txt +++ /dev/null @@ -1,52 +0,0 @@ -Date: Fri, 12 Aug 2005 22:39:48 -0700 (PDT) -From: Linus Torvalds <torvalds@osdl.org> -To: Dave Jones <davej@redhat.com> -cc: git@vger.kernel.org -Subject: Re: Fwd: Re: git checkout -f branch doesn't remove extra files -Abstract: In this article, Linus talks about building a tarball, - incremental patch, and ChangeLog, given a base release and two - rc releases, following the convention of giving the patch from - the base release and the latest rc, with ChangeLog between the - last rc and the latest rc. - -On Sat, 13 Aug 2005, Dave Jones wrote: -> -> > Git actually has a _lot_ of nifty tools. I didn't realize that people -> > didn't know about such basic stuff as "git-tar-tree" and "git-ls-files". -> -> Maybe its because things are moving so fast :) Or maybe I just wasn't -> paying attention on that day. (I even read the git changes via RSS, -> so I should have no excuse). - -Well, git-tar-tree has been there since late April - it's actually one of -those really early commands. I'm pretty sure the RSS feed came later ;) - -I use it all the time in doing releases, it's a lot faster than creating a -tar tree by reading the filesystem (even if you don't have to check things -out). A hidden pearl. - -This is my crappy "release-script": - - [torvalds@g5 ~]$ cat bin/release-script - #!/bin/sh - stable="$1" - last="$2" - new="$3" - echo "# git-tag v$new" - echo "git-tar-tree v$new linux-$new | gzip -9 > ../linux-$new.tar.gz" - echo "git-diff-tree -p v$stable v$new | gzip -9 > ../patch-$new.gz" - echo "git-rev-list --pretty v$new ^v$last > ../ChangeLog-$new" - echo "git-rev-list --pretty=short v$new ^v$last | git-shortlog > ../ShortLog" - echo "git-diff-tree -p v$last v$new | git-apply --stat > ../diffstat-$new" - -and when I want to do a new kernel release I literally first tag it, and -then do - - release-script 2.6.12 2.6.13-rc6 2.6.13-rc7 - -and check that things look sane, and then just cut-and-paste the commands. - -Yeah, it's stupid. - - Linus - diff --git a/Documentation/howto/using-topic-branches.txt b/Documentation/howto/using-topic-branches.txt deleted file mode 100644 index 2c98194cb8..0000000000 --- a/Documentation/howto/using-topic-branches.txt +++ /dev/null @@ -1,296 +0,0 @@ -Date: Mon, 15 Aug 2005 12:17:41 -0700 -From: tony.luck@intel.com -Subject: Some tutorial text (was git/cogito workshop/bof at linuxconf au?) -Abstract: In this article, Tony Luck discusses how he uses GIT - as a Linux subsystem maintainer. - -Here's something that I've been putting together on how I'm using -GIT as a Linux subsystem maintainer. - --Tony - -Last updated w.r.t. GIT 1.1 - -Linux subsystem maintenance using GIT -------------------------------------- - -My requirements here are to be able to create two public trees: - -1) A "test" tree into which patches are initially placed so that they -can get some exposure when integrated with other ongoing development. -This tree is available to Andrew for pulling into -mm whenever he wants. - -2) A "release" tree into which tested patches are moved for final -sanity checking, and as a vehicle to send them upstream to Linus -(by sending him a "please pull" request.) - -Note that the period of time that each patch spends in the "test" tree -is dependent on the complexity of the change. Since GIT does not support -cherry picking, it is not practical to simply apply all patches to the -test tree and then pull to the release tree as that would leave trivial -patches blocked in the test tree waiting for complex changes to accumulate -enough test time to graduate. - -Back in the BitKeeper days I achieved this by creating small forests of -temporary trees, one tree for each logical grouping of patches, and then -pulling changes from these trees first to the test tree, and then to the -release tree. At first I replicated this in GIT, but then I realised -that I could so this far more efficiently using branches inside a single -GIT repository. - -So here is the step-by-step guide how this all works for me. - -First create your work tree by cloning Linus's public tree: - - $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git work - -Change directory into the cloned tree you just created - - $ cd work - -Set up a remotes file so that you can fetch the latest from Linus' master -branch into a local branch named "linus": - - $ cat > .git/remotes/linus - URL: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git - Pull: master:linus - ^D - -and create the linus branch: - - $ git branch linus - -The "linus" branch will be used to track the upstream kernel. To update it, -you simply run: - - $ git fetch linus - -you can do this frequently (and it should be safe to do so with pending -work in your tree, but perhaps not if you are in mid-merge). - -If you need to keep track of other public trees, you can add remote branches -for them too: - - $ git branch another - $ cat > .git/remotes/another - URL: ... insert URL here ... - Pull: name-of-branch-in-this-remote-tree:another - ^D - -and run: - - $ git fetch another - -Now create the branches in which you are going to work, these start -out at the current tip of the linus branch. - - $ git branch test linus - $ git branch release linus - -These can be easily kept up to date by merging from the "linus" branch: - - $ git checkout test && git merge "Auto-update from upstream" test linus - $ git checkout release && git merge "Auto-update from upstream" release linus - -Important note! If you have any local changes in these branches, then -this merge will create a commit object in the history (with no local -changes git will simply do a "Fast forward" merge). Many people dislike -the "noise" that this creates in the Linux history, so you should avoid -doing this capriciously in the "release" branch, as these noisy commits -will become part of the permanent history when you ask Linus to pull -from the release branch. - -Set up so that you can push upstream to your public tree (you need to -log-in to the remote system and create an empty tree there before the -first push). - - $ cat > .git/remotes/mytree - URL: master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git - Push: release - Push: test - ^D - -and the push both the test and release trees using: - - $ git push mytree - -or push just one of the test and release branches using: - - $ git push mytree test -or - $ git push mytree release - -Now to apply some patches from the community. Think of a short -snappy name for a branch to hold this patch (or related group of -patches), and create a new branch from the current tip of the -linus branch: - - $ git checkout -b speed-up-spinlocks linus - -Now you apply the patch(es), run some tests, and commit the change(s). If -the patch is a multi-part series, then you should apply each as a separate -commit to this branch. - - $ ... patch ... test ... commit [ ... patch ... test ... commit ]* - -When you are happy with the state of this change, you can pull it into the -"test" branch in preparation to make it public: - - $ git checkout test && git merge "Pull speed-up-spinlock changes" test speed-up-spinlocks - -It is unlikely that you would have any conflicts here ... but you might if you -spent a while on this step and had also pulled new versions from upstream. - -Some time later when enough time has passed and testing done, you can pull the -same branch into the "release" tree ready to go upstream. This is where you -see the value of keeping each patch (or patch series) in its own branch. It -means that the patches can be moved into the "release" tree in any order. - - $ git checkout release && git merge "Pull speed-up-spinlock changes" release speed-up-spinlocks - -After a while, you will have a number of branches, and despite the -well chosen names you picked for each of them, you may forget what -they are for, or what status they are in. To get a reminder of what -changes are in a specific branch, use: - - $ git-whatchanged branchname ^linus | git-shortlog - -To see whether it has already been merged into the test or release branches -use: - - $ git-rev-list branchname ^test -or - $ git-rev-list branchname ^release - -[If this branch has not yet been merged you will see a set of SHA1 values -for the commits, if it has been merged, then there will be no output] - -Once a patch completes the great cycle (moving from test to release, then -pulled by Linus, and finally coming back into your local "linus" branch) -the branch for this change is no longer needed. You detect this when the -output from: - - $ git-rev-list branchname ^linus - -is empty. At this point the branch can be deleted: - - $ git branch -d branchname - -Some changes are so trivial that it is not necessary to create a separate -branch and then merge into each of the test and release branches. For -these changes, just apply directly to the "release" branch, and then -merge that into the "test" branch. - -To create diffstat and shortlog summaries of changes to include in a "please -pull" request to Linus you can use: - - $ git-whatchanged -p release ^linus | diffstat -p1 -and - $ git-whatchanged release ^linus | git-shortlog - - -Here are some of the scripts that I use to simplify all this even further. - -==== update script ==== -# Update a branch in my GIT tree. If the branch to be updated -# is "linus", then pull from kernel.org. Otherwise merge local -# linus branch into test|release branch - -case "$1" in -test|release) - git checkout $1 && git merge "Auto-update from upstream" $1 linus - ;; -linus) - before=$(cat .git/refs/heads/linus) - git fetch linus - after=$(cat .git/refs/heads/linus) - if [ $before != $after ] - then - git-whatchanged $after ^$before | git-shortlog - fi - ;; -*) - echo "Usage: $0 linus|test|release" 1>&2 - exit 1 - ;; -esac - -==== merge script ==== -# Merge a branch into either the test or release branch - -pname=$0 - -usage() -{ - echo "Usage: $pname branch test|release" 1>&2 - exit 1 -} - -if [ ! -f .git/refs/heads/"$1" ] -then - echo "Can't see branch <$1>" 1>&2 - usage -fi - -case "$2" in -test|release) - if [ $(git-rev-list $1 ^$2 | wc -c) -eq 0 ] - then - echo $1 already merged into $2 1>&2 - exit 1 - fi - git checkout $2 && git merge "Pull $1 into $2 branch" $2 $1 - ;; -*) - usage - ;; -esac - -==== status script ==== -# report on status of my ia64 GIT tree - -gb=$(tput setab 2) -rb=$(tput setab 1) -restore=$(tput setab 9) - -if [ `git-rev-list release ^test | wc -c` -gt 0 ] -then - echo $rb Warning: commits in release that are not in test $restore - git-whatchanged release ^test -fi - -for branch in `ls .git/refs/heads` -do - if [ $branch = linus -o $branch = test -o $branch = release ] - then - continue - fi - - echo -n $gb ======= $branch ====== $restore " " - status= - for ref in test release linus - do - if [ `git-rev-list $branch ^$ref | wc -c` -gt 0 ] - then - status=$status${ref:0:1} - fi - done - case $status in - trl) - echo $rb Need to pull into test $restore - ;; - rl) - echo "In test" - ;; - l) - echo "Waiting for linus" - ;; - "") - echo $rb All done $restore - ;; - *) - echo $rb "<$status>" $restore - ;; - esac - git-whatchanged $branch ^linus | git-shortlog -done diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt index d7ffc21ddf..d922e8e86c 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -1,31 +1,32 @@ ---pretty[='<format>']:: - - Pretty-prints the details of a commit. `--pretty` - without an explicit `=<format>` defaults to 'medium'. - If the commit is a merge, and if the pretty-format - is not 'oneline', 'email' or 'raw', an additional line is - inserted before the 'Author:' line. This line begins with - "Merge: " and the sha1s of ancestral commits are printed, - separated by spaces. Note that the listed commits may not - necessarily be the list of the *direct* parent commits if you - have limited your view of history: for example, if you are - only interested in changes related to a certain directory or - file. Here are some additional details for each format: - - * 'oneline' +PRETTY FORMATS +-------------- + +If the commit is a merge, and if the pretty-format +is not 'oneline', 'email' or 'raw', an additional line is +inserted before the 'Author:' line. This line begins with +"Merge: " and the sha1s of ancestral commits are printed, +separated by spaces. Note that the listed commits may not +necessarily be the list of the *direct* parent commits if you +have limited your view of history: for example, if you are +only interested in changes related to a certain directory or +file. + +Here are some additional details for each format: + +* 'oneline' <sha1> <title line> + This is designed to be as compact as possible. - * 'short' +* 'short' commit <sha1> Author: <author> <title line> - * 'medium' +* 'medium' commit <sha1> Author: <author> @@ -35,7 +36,7 @@ This is designed to be as compact as possible. <full commit message> - * 'full' +* 'full' commit <sha1> Author: <author> @@ -45,7 +46,7 @@ This is designed to be as compact as possible. <full commit message> - * 'fuller' +* 'fuller' commit <sha1> Author: <author> @@ -57,18 +58,16 @@ This is designed to be as compact as possible. <full commit message> - - * 'email' +* 'email' From <sha1> <date> From: <author> Date: <date & time> Subject: [PATCH] <title line> - full commit message> - + <full commit message> - * 'raw' +* 'raw' + The 'raw' format shows the entire commit exactly as stored in the commit object. Notably, the SHA1s are @@ -77,19 +76,22 @@ displayed in full, regardless of whether --abbrev or true parent commits, without taking grafts nor history simplification into account. - * 'format:' +* 'format:' + The 'format:' format allows you to specify which information you want to show. It works a little bit like printf format, with the notable exception that you get a newline with '%n' instead of '\n'. - -E.g, 'format:"The author of %h was %an, %ar%nThe title was >>%s<<"' ++ +E.g, 'format:"The author of %h was %an, %ar%nThe title was >>%s<<%n"' would show something like this: - ++ +------- The author of fe6e0ee was Junio C Hamano, 23 hours ago The title was >>t4119: test autocomputing -p<n> for traditional diff input.<< +-------- ++ The placeholders are: - '%H': commit hash @@ -120,11 +122,3 @@ The placeholders are: - '%m': left, right or boundary mark - '%n': newline - ---encoding[=<encoding>]:: - The commit objects record the encoding used for the log message - in their encoding header; this option can be used to tell the - command to re-code the commit log message in the encoding - preferred by the user. For non plumbing commands this - defaults to UTF-8. - diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt new file mode 100644 index 0000000000..7d515be0fd --- /dev/null +++ b/Documentation/pretty-options.txt @@ -0,0 +1,14 @@ +--pretty[='<format>']:: + + Pretty print the contents of the commit logs in a given format, + where '<format>' can be one of 'oneline', 'short', 'medium', + 'full', 'fuller', 'email', 'raw' and 'format:<string>'. + When left out the format default to 'medium'. + +--encoding[=<encoding>]:: + The commit objects record the encoding used for the log message + in their encoding header; this option can be used to tell the + command to re-code the commit log message in the encoding + preferred by the user. For non plumbing commands this + defaults to UTF-8. + diff --git a/Documentation/tutorial-2.txt b/Documentation/tutorial-2.txt index af8d43bd12..5c39a165f5 100644 --- a/Documentation/tutorial-2.txt +++ b/Documentation/tutorial-2.txt @@ -391,6 +391,9 @@ with the commands mentioned in link:everyday.html[Everyday git]. You should be able to find any unknown jargon in the link:glossary.html[Glossary]. +The link:user-manual.html[Git User's Manual] provides a more +comprehensive introduction to git. + The link:cvs-migration.html[CVS migration] document explains how to import a CVS repository into git, and shows how to use git in a CVS-like way. diff --git a/Documentation/tutorial.txt b/Documentation/tutorial.txt index 99efce4576..f55d4083ed 100644 --- a/Documentation/tutorial.txt +++ b/Documentation/tutorial.txt @@ -4,6 +4,10 @@ A tutorial introduction to git (for version 1.5.1 or newer) This tutorial explains how to import a new project into git, make changes to it, and share changes with other developers. +If you are instead primarily interested in using git to fetch a project, +for example, to test the latest version, you may prefer to start with +the first two chapters of link:user-manual.html[The Git User's Manual]. + First, note that you can get documentation for a command such as "git diff" with: @@ -40,42 +44,67 @@ Initialized empty Git repository in .git/ ------------------------------------------------ You've now initialized the working directory--you may notice a new -directory created, named ".git". Tell git that you want it to track -every file under the current directory (note the '.') with: +directory created, named ".git". + +Next, tell git to take a snapshot of the contents of all files under the +current directory (note the '.'), with gitlink:git-add[1]: ------------------------------------------------ $ git add . ------------------------------------------------ -Finally, +This snapshot is now stored in a temporary staging area which git calls +the "index". You can permanently store the contents of the index in the +repository with gitlink:git-commit[1]: ------------------------------------------------ $ git commit ------------------------------------------------ -will prompt you for a commit message, then record the current state -of all the files to the repository. +This will prompt you for a commit message. You've now stored the first +version of your project in git. Making changes -------------- -Try modifying some files, then run +Modify some files, then add their updated contents to the index: ------------------------------------------------ -$ git diff +$ git add file1 file2 file3 ------------------------------------------------ -to review your changes. When you're done, tell git that you -want the updated contents of these files in the commit and then -make a commit, like this: +You are now ready to commit. You can see what is about to be committed +using gitlink:git-diff[1] with the --cached option: + +------------------------------------------------ +$ git diff --cached +------------------------------------------------ + +(Without --cached, gitlink:git-diff[1] will show you any changes that +you've made but not yet added to the index.) You can also get a brief +summary of the situation with gitlink:git-status[1]: + +------------------------------------------------ +$ git status +# On branch master +# Changes to be committed: +# (use "git reset HEAD <file>..." to unstage) +# +# modified: file1 +# modified: file2 +# modified: file3 +# +------------------------------------------------ + +If you need to make any further adjustments, do so now, and then add any +newly modified content to the index. Finally, commit your changes with: ------------------------------------------------ -$ git add file1 file2 file3 $ git commit ------------------------------------------------ This will again prompt your for a message describing the change, and then -record the new versions of the files you listed. +record a new version of the project. Alternatively, instead of running `git add` beforehand, you can use @@ -83,7 +112,8 @@ Alternatively, instead of running `git add` beforehand, you can use $ git commit -a ------------------------------------------------ -which will automatically notice modified (but not new) files. +which will automatically notice any modified (but not new) files, add +them to the index, and commit, all in one step. A note on commit messages: Though not required, it's a good idea to begin the commit message with a single short (less than 50 character) @@ -92,45 +122,15 @@ thorough description. Tools that turn commits into email, for example, use the first line on the Subject: line and the rest of the commit in the body. - Git tracks content not files ---------------------------- -With git you have to explicitly "add" all the changed _content_ you -want to commit together. This can be done in a few different ways: - -1) By using 'git add <file_spec>...' - -This can be performed multiple times before a commit. Note that this -is not only for adding new files. Even modified files must be -added to the set of changes about to be committed. The "git status" -command gives you a summary of what is included so far for the -next commit. When done you should use the 'git commit' command to -make it real. - -Note: don't forget to 'add' a file again if you modified it after the -first 'add' and before 'commit'. Otherwise only the previous added -state of that file will be committed. This is because git tracks -content, so what you're really 'adding' to the commit is the *content* -of the file in the state it is in when you 'add' it. - -2) By using 'git commit -a' directly - -This is a quick way to automatically 'add' the content from all files -that were modified since the previous commit, and perform the actual -commit without having to separately 'add' them beforehand. This will -not add content from new files i.e. files that were never added before. -Those files still have to be added explicitly before performing a -commit. - -But here's a twist. If you do 'git commit <file1> <file2> ...' then only -the changes belonging to those explicitly specified files will be -committed, entirely bypassing the current "added" changes. Those "added" -changes will still remain available for a subsequent commit though. - -However, for normal usage you only have to remember 'git add' + 'git commit' -and/or 'git commit -a'. - +Many revision control systems provide an "add" command that tells the +system to start tracking changes to a new file. Git's "add" command +does something simpler and more powerful: `git add` is used both for new +and newly modified files, and in both cases it takes a snapshot of the +given files and stages that content in the index, ready for inclusion in +the next commit. Viewing the changelog --------------------- @@ -564,7 +564,7 @@ link:tutorial-2.html[Part two of this tutorial] explains the object database, the index file, and a few other odds and ends that you'll need to make the most of git. -If you don't want to consider with that right away, a few other +If you don't want to continue with that right away, a few other digressions that may be interesting at this point are: * gitlink:git-format-patch[1], gitlink:git-am[1]: These convert diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt index 13db9699c1..52247aa713 100644 --- a/Documentation/user-manual.txt +++ b/Documentation/user-manual.txt @@ -1,18 +1,19 @@ Git User's Manual (for version 1.5.1 or newer) ______________________________________________ + +Git is a fast distributed revision control system. + This manual is designed to be readable by someone with basic unix command-line skills, but no previous knowledge of git. -Chapter 1 gives a brief overview of git commands, without any -explanation; you may prefer to skip to chapter 2 on a first reading. - -Chapters 2 and 3 explain how to fetch and study a project using -git--the tools you'd need to build and test a particular version of a -software project, to search for regressions, and so on. +<<repositories-and-branches>> and <<exploring-git-history>> explain how +to fetch and study a project using git--read these chapters to learn how +to build and test a particular version of a software project, search for +regressions, and so on. -Chapter 4 explains how to do development with git, and chapter 5 how -to share that development with others. +People needing to do actual development will also want to read +<<Developing-with-git>> and <<sharing-development>>. Further chapters cover more specialized topics. @@ -23,237 +24,12 @@ pages. For a command such as "git clone", just use $ man git-clone ------------------------------------------------ -[[git-quick-start]] -Git Quick Start -=============== - -This is a quick summary of the major commands; the following chapters -will explain how these work in more detail. - -[[quick-creating-a-new-repository]] -Creating a new repository -------------------------- - -From a tarball: - ------------------------------------------------ -$ tar xzf project.tar.gz -$ cd project -$ git init -Initialized empty Git repository in .git/ -$ git add . -$ git commit ------------------------------------------------ - -From a remote repository: - ------------------------------------------------ -$ git clone git://example.com/pub/project.git -$ cd project ------------------------------------------------ - -[[managing-branches]] -Managing branches ------------------ - ------------------------------------------------ -$ git branch # list all local branches in this repo -$ git checkout test # switch working directory to branch "test" -$ git branch new # create branch "new" starting at current HEAD -$ git branch -d new # delete branch "new" ------------------------------------------------ - -Instead of basing new branch on current HEAD (the default), use: - ------------------------------------------------ -$ git branch new test # branch named "test" -$ git branch new v2.6.15 # tag named v2.6.15 -$ git branch new HEAD^ # commit before the most recent -$ git branch new HEAD^^ # commit before that -$ git branch new test~10 # ten commits before tip of branch "test" ------------------------------------------------ - -Create and switch to a new branch at the same time: - ------------------------------------------------ -$ git checkout -b new v2.6.15 ------------------------------------------------ - -Update and examine branches from the repository you cloned from: - ------------------------------------------------ -$ git fetch # update -$ git branch -r # list - origin/master - origin/next - ... -$ git checkout -b masterwork origin/master ------------------------------------------------ - -Fetch a branch from a different repository, and give it a new -name in your repository: - ------------------------------------------------ -$ git fetch git://example.com/project.git theirbranch:mybranch -$ git fetch git://example.com/project.git v2.6.15:mybranch ------------------------------------------------ - -Keep a list of repositories you work with regularly: - ------------------------------------------------ -$ git remote add example git://example.com/project.git -$ git remote # list remote repositories -example -origin -$ git remote show example # get details -* remote example - URL: git://example.com/project.git - Tracked remote branches - master next ... -$ git fetch example # update branches from example -$ git branch -r # list all remote branches ------------------------------------------------ - - -[[exploring-history]] -Exploring history ------------------ - ------------------------------------------------ -$ gitk # visualize and browse history -$ git log # list all commits -$ git log src/ # ...modifying src/ -$ git log v2.6.15..v2.6.16 # ...in v2.6.16, not in v2.6.15 -$ git log master..test # ...in branch test, not in branch master -$ git log test..master # ...in branch master, but not in test -$ git log test...master # ...in one branch, not in both -$ git log -S'foo()' # ...where difference contain "foo()" -$ git log --since="2 weeks ago" -$ git log -p # show patches as well -$ git show # most recent commit -$ git diff v2.6.15..v2.6.16 # diff between two tagged versions -$ git diff v2.6.15..HEAD # diff with current head -$ git grep "foo()" # search working directory for "foo()" -$ git grep v2.6.15 "foo()" # search old tree for "foo()" -$ git show v2.6.15:a.txt # look at old version of a.txt ------------------------------------------------ - -Search for regressions: - ------------------------------------------------ -$ git bisect start -$ git bisect bad # current version is bad -$ git bisect good v2.6.13-rc2 # last known good revision -Bisecting: 675 revisions left to test after this - # test here, then: -$ git bisect good # if this revision is good, or -$ git bisect bad # if this revision is bad. - # repeat until done. ------------------------------------------------ - -[[making-changes]] -Making changes --------------- - -Make sure git knows who to blame: - ------------------------------------------------- -$ cat >>~/.gitconfig <<\EOF -[user] - name = Your Name Comes Here - email = you@yourdomain.example.com -EOF ------------------------------------------------- - -Select file contents to include in the next commit, then make the -commit: - ------------------------------------------------ -$ git add a.txt # updated file -$ git add b.txt # new file -$ git rm c.txt # old file -$ git commit ------------------------------------------------ - -Or, prepare and create the commit in one step: - ------------------------------------------------ -$ git commit d.txt # use latest content only of d.txt -$ git commit -a # use latest content of all tracked files ------------------------------------------------ - -[[merging]] -Merging -------- - ------------------------------------------------ -$ git merge test # merge branch "test" into the current branch -$ git pull git://example.com/project.git master - # fetch and merge in remote branch -$ git pull . test # equivalent to git merge test ------------------------------------------------ - -[[sharing-your-changes]] -Sharing your changes --------------------- - -Importing or exporting patches: - ------------------------------------------------ -$ git format-patch origin..HEAD # format a patch for each commit - # in HEAD but not in origin -$ git am mbox # import patches from the mailbox "mbox" ------------------------------------------------ - -Fetch a branch in a different git repository, then merge into the -current branch: - ------------------------------------------------ -$ git pull git://example.com/project.git theirbranch ------------------------------------------------ - -Store the fetched branch into a local branch before merging into the -current branch: - ------------------------------------------------ -$ git pull git://example.com/project.git theirbranch:mybranch ------------------------------------------------ - -After creating commits on a local branch, update the remote -branch with your commits: - ------------------------------------------------ -$ git push ssh://example.com/project.git mybranch:theirbranch ------------------------------------------------ - -When remote and local branch are both named "test": - ------------------------------------------------ -$ git push ssh://example.com/project.git test ------------------------------------------------ - -Shortcut version for a frequently used remote repository: - ------------------------------------------------ -$ git remote add example ssh://example.com/project.git -$ git push example test ------------------------------------------------ - -[[repository-maintenance]] -Repository maintenance ----------------------- - -Check for corruption: +See also <<git-quick-start>> for a brief overview of git commands, +without any explanation. ------------------------------------------------ -$ git fsck ------------------------------------------------ +Also, see <<todo>> for ways that you can help make this manual more +complete. -Recompress, remove unused cruft: - ------------------------------------------------ -$ git gc ------------------------------------------------ [[repositories-and-branches]] Repositories and Branches @@ -917,6 +693,25 @@ may be any path to a file tracked by git. Examples -------- +[[counting-commits-on-a-branch]] +Counting the number of commits on a branch +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Suppose you want to know how many commits you've made on "mybranch" +since it diverged from "origin": + +------------------------------------------------- +$ git log --pretty=oneline origin..mybranch | wc -l +------------------------------------------------- + +Alternatively, you may often see this sort of thing done with the +lower-level command gitlink:git-rev-list[1], which just lists the SHA1's +of all the given commits: + +------------------------------------------------- +$ git rev-list origin..mybranch | wc -l +------------------------------------------------- + [[checking-for-equal-branches]] Check whether two branches point at the same history ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -1035,6 +830,112 @@ available Which shows that e05db0fd is reachable from itself, from v1.5.0-rc1, and from v1.5.0-rc2, but not from v1.5.0-rc0. +[[showing-commits-unique-to-a-branch]] +Showing commits unique to a given branch +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Suppose you would like to see all the commits reachable from the branch +head named "master" but not from any other head in your repository. + +We can list all the heads in this repository with +gitlink:git-show-ref[1]: + +------------------------------------------------- +$ git show-ref --heads +bf62196b5e363d73353a9dcf094c59595f3153b7 refs/heads/core-tutorial +db768d5504c1bb46f63ee9d6e1772bd047e05bf9 refs/heads/maint +a07157ac624b2524a059a3414e99f6f44bebc1e7 refs/heads/master +24dbc180ea14dc1aebe09f14c8ecf32010690627 refs/heads/tutorial-2 +1e87486ae06626c2f31eaa63d26fc0fd646c8af2 refs/heads/tutorial-fixes +------------------------------------------------- + +We can get just the branch-head names, and remove "master", with +the help of the standard utilities cut and grep: + +------------------------------------------------- +$ git show-ref --heads | cut -d' ' -f2 | grep -v '^refs/heads/master' +refs/heads/core-tutorial +refs/heads/maint +refs/heads/tutorial-2 +refs/heads/tutorial-fixes +------------------------------------------------- + +And then we can ask to see all the commits reachable from master +but not from these other heads: + +------------------------------------------------- +$ gitk master --not $( git show-ref --heads | cut -d' ' -f2 | + grep -v '^refs/heads/master' ) +------------------------------------------------- + +Obviously, endless variations are possible; for example, to see all +commits reachable from some head but not from any tag in the repository: + +------------------------------------------------- +$ gitk ($ git show-ref --heads ) --not $( git show-ref --tags ) +------------------------------------------------- + +(See gitlink:git-rev-parse[1] for explanations of commit-selecting +syntax such as `--not`.) + +[[making-a-release]] +Creating a changelog and tarball for a software release +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The gitlink:git-archive[1] command can create a tar or zip archive from +any version of a project; for example: + +------------------------------------------------- +$ git archive --format=tar --prefix=project/ HEAD | gzip >latest.tar.gz +------------------------------------------------- + +will use HEAD to produce a tar archive in which each filename is +preceded by "prefix/". + +If you're releasing a new version of a software project, you may want +to simultaneously make a changelog to include in the release +announcement. + +Linus Torvalds, for example, makes new kernel releases by tagging them, +then running: + +------------------------------------------------- +$ release-script 2.6.12 2.6.13-rc6 2.6.13-rc7 +------------------------------------------------- + +where release-script is a shell script that looks like: + +------------------------------------------------- +#!/bin/sh +stable="$1" +last="$2" +new="$3" +echo "# git tag v$new" +echo "git archive --prefix=linux-$new/ v$new | gzip -9 > ../linux-$new.tar.gz" +echo "git diff v$stable v$new | gzip -9 > ../patch-$new.gz" +echo "git log --no-merges v$new ^v$last > ../ChangeLog-$new" +echo "git shortlog --no-merges v$new ^v$last > ../ShortLog" +echo "git diff --stat --summary -M v$last v$new > ../diffstat-$new" +------------------------------------------------- + +and then he just cut-and-pastes the output commands after verifying that +they look OK. + +Finding commits referencing a file with given content +----------------------------------------------------- + +Somebody hands you a copy of a file, and asks which commits modified a +file such that it contained the given content either before or after the +commit. You can find out with this: + +------------------------------------------------- +$ git log --raw -r --abbrev=40 --pretty=oneline -- filename | + grep -B 1 `git hash-object filename` +------------------------------------------------- + +Figuring out why this works is left as an exercise to the (advanced) +student. The gitlink:git-log[1], gitlink:git-diff-tree[1], and +gitlink:git-hash-object[1] man pages may prove helpful. [[Developing-with-git]] Developing with git @@ -1188,6 +1089,75 @@ description. Tools that turn commits into email, for example, use the first line on the Subject line and the rest of the commit in the body. +[[ignoring-files]] +Ignoring files +-------------- + +A project will often generate files that you do 'not' want to track with git. +This typically includes files generated by a build process or temporary +backup files made by your editor. Of course, 'not' tracking files with git +is just a matter of 'not' calling "`git add`" on them. But it quickly becomes +annoying to have these untracked files lying around; e.g. they make +"`git add .`" and "`git commit -a`" practically useless, and they keep +showing up in the output of "`git status`", etc. + +Git therefore provides "exclude patterns" for telling git which files to +actively ignore. Exclude patterns are thoroughly explained in the +"Exclude Patterns" section of the gitlink:git-ls-files[1] manual page, +but the heart of the concept is simply a list of files which git should +ignore. Entries in the list may contain globs to specify multiple files, +or may be prefixed by "`!`" to explicitly include (un-ignore) a previously +excluded (ignored) file (i.e. later exclude patterns override earlier ones). +The following example should illustrate such patterns: + +------------------------------------------------- +# Lines starting with '#' are considered comments. +# Ignore foo.txt. +foo.txt +# Ignore (generated) html files, +*.html +# except foo.html which is maintained by hand. +!foo.html +# Ignore objects and archives. +*.[oa] +------------------------------------------------- + +The next question is where to put these exclude patterns so that git can +find them. Git looks for exclude patterns in the following files: + +`.gitignore` files in your working tree::: + You may store multiple `.gitignore` files at various locations in your + working tree. Each `.gitignore` file is applied to the directory where + it's located, including its subdirectories. Furthermore, the + `.gitignore` files can be tracked like any other files in your working + tree; just do a "`git add .gitignore`" and commit. `.gitignore` is + therefore the right place to put exclude patterns that are meant to + be shared between all project participants, such as build output files + (e.g. `\*.o`), etc. +`.git/info/exclude` in your repo::: + Exclude patterns in this file are applied to the working tree as a + whole. Since the file is not located in your working tree, it does + not follow push/pull/clone like `.gitignore` can do. This is therefore + the place to put exclude patterns that are local to your copy of the + repo (i.e. 'not' shared between project participants), such as + temporary backup files made by your editor (e.g. `\*~`), etc. +The file specified by the `core.excludesfile` config directive::: + By setting the `core.excludesfile` config directive you can tell git + where to find more exclude patterns (see gitlink:git-config[1] for + more information on configuration options). This config directive + can be set in the per-repo `.git/config` file, in which case the + exclude patterns will apply to that repo only. Alternatively, you + can set the directive in the global `~/.gitconfig` file to apply + the exclude pattern to all your git repos. As with the above + `.git/info/exclude` (and, indeed, with git config directives in + general), this directive does not follow push/pull/clone, but remain + local to your repo(s). + +[NOTE] +In addition to the above alternatives, there are git commands that can take +exclude patterns directly on the command line. See gitlink:git-ls-files[1] +for an example of this. + [[how-to-merge]] How to merge ------------ @@ -1357,7 +1327,7 @@ $ gitk --merge These will display all commits which exist only on HEAD or on MERGE_HEAD, and which touch an unmerged file. -You may also use gitlink:git-mergetool, which lets you merge the +You may also use gitlink:git-mergetool[1], which lets you merge the unmerged files using external tools such as emacs or kdiff3. Each time you resolve the conflicts in a file and update the index: @@ -1789,31 +1759,30 @@ The final result will be a series of commits, one for each patch in the original mailbox, with authorship and commit log message each taken from the message containing each patch. -[[setting-up-a-public-repository]] -Setting up a public repository ------------------------------- +[[public-repositories]] +Public git repositories +----------------------- -Another way to submit changes to a project is to simply tell the -maintainer of that project to pull from your repository, exactly as -you did in the section "<<getting-updates-with-git-pull, Getting -updates with git pull>>". +Another way to submit changes to a project is to tell the maintainer of +that project to pull the changes from your repository using git-pull[1]. +In the section "<<getting-updates-with-git-pull, Getting updates with +git pull>>" we described this as a way to get updates from the "main" +repository, but it works just as well in the other direction. -If you and maintainer both have accounts on the same machine, then -then you can just pull changes from each other's repositories -directly; note that all of the commands (gitlink:git-clone[1], -git-fetch[1], git-pull[1], etc.) that accept a URL as an argument -will also accept a local directory name; so, for example, you can -use +If you and the maintainer both have accounts on the same machine, then +you can just pull changes from each other's repositories directly; +commands that accepts repository URLs as arguments will also accept a +local directory name: ------------------------------------------------- $ git clone /path/to/repository $ git pull /path/to/other/repository ------------------------------------------------- -If this sort of setup is inconvenient or impossible, another (more -common) option is to set up a public repository on a public server. -This also allows you to cleanly separate private work in progress -from publicly visible work. +However, the more common way to do this is to maintain a separate public +repository (usually on a different host) for others to pull changes +from. This is usually more convenient, and allows you to cleanly +separate private work in progress from publicly visible work. You will continue to do your day-to-day work in your personal repository, but periodically "push" changes from your personal @@ -1832,32 +1801,52 @@ like this: | they push V their public repo <------------------- their repo -Now, assume your personal repository is in the directory ~/proj. We -first create a new clone of the repository: +[[setting-up-a-public-repository]] +Setting up a public repository +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Assume your personal repository is in the directory ~/proj. We +first create a new clone of the repository and tell git-daemon that it +is meant to be public: ------------------------------------------------- $ git clone --bare ~/proj proj.git +$ touch proj.git/git-daemon-export-ok ------------------------------------------------- The resulting directory proj.git contains a "bare" git repository--it is -just the contents of the ".git" directory, without a checked-out copy of -a working directory. +just the contents of the ".git" directory, without any files checked out +around it. Next, copy proj.git to the server where you plan to host the public repository. You can use scp, rsync, or whatever is most convenient. -If somebody else maintains the public server, they may already have -set up a git service for you, and you may skip to the section +[[exporting-via-git]] +Exporting a git repository via the git protocol +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +This is the preferred method. + +If someone else administers the server, they should tell you what +directory to put the repository in, and what git:// url it will appear +at. You can then skip to the section "<<pushing-changes-to-a-public-repository,Pushing changes to a public repository>>", below. -Otherwise, the following sections explain how to export your newly -created public repository: +Otherwise, all you need to do is start gitlink:git-daemon[1]; it will +listen on port 9418. By default, it will allow access to any directory +that looks like a git directory and contains the magic file +git-daemon-export-ok. Passing some directory paths as git-daemon +arguments will further restrict the exports to those paths. + +You can also run git-daemon as an inetd service; see the +gitlink:git-daemon[1] man page for details. (See especially the +examples section.) [[exporting-via-http]] Exporting a git repository via http ------------------------------------ +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The git protocol gives better performance and reliability, but on a host with a web server set up, http exports may be simpler to set up. @@ -1875,7 +1864,7 @@ $ chmod a+x hooks/post-update (For an explanation of the last two lines, see gitlink:git-update-server-info[1], and the documentation -link:hooks.txt[Hooks used by git].) +link:hooks.html[Hooks used by git].) Advertise the url of proj.git. Anybody else should then be able to clone or pull from that url, for example with a commandline like: @@ -1889,20 +1878,11 @@ link:howto/setup-git-server-over-http.txt[setup-git-server-over-http] for a slightly more sophisticated setup using WebDAV which also allows pushing over http.) -[[exporting-via-git]] -Exporting a git repository via the git protocol ------------------------------------------------ - -This is the preferred method. - -For now, we refer you to the gitlink:git-daemon[1] man page for -instructions. (See especially the examples section.) - [[pushing-changes-to-a-public-repository]] Pushing changes to a public repository --------------------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Note that the two techniques outline above (exporting via +Note that the two techniques outlined above (exporting via <<exporting-via-http,http>> or <<exporting-via-git,git>>) allow other maintainers to fetch your latest changes, but they do not allow write access, which you will need to update the public repository with the @@ -1954,17 +1934,38 @@ details. [[setting-up-a-shared-repository]] Setting up a shared repository ------------------------------- +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Another way to collaborate is by using a model similar to that commonly used in CVS, where several developers with special rights all push to and pull from a single shared repository. See -link:cvs-migration.txt[git for CVS users] for instructions on how to +link:cvs-migration.html[git for CVS users] for instructions on how to set this up. +However, while there is nothing wrong with git's support for shared +repositories, this mode of operation is not generally recommended, +simply because the mode of collaboration that git supports--by +exchanging patches and pulling from public repositories--has so many +advantages over the central shared repository: + + - Git's ability to quickly import and merge patches allows a + single maintainer to process incoming changes even at very + high rates. And when that becomes too much, git-pull provides + an easy way for that maintainer to delegate this job to other + maintainers while still allowing optional review of incoming + changes. + - Since every developer's repository has the same complete copy + of the project history, no repository is special, and it is + trivial for another developer to take over maintenance of a + project, either by mutual agreement, or because a maintainer + becomes unresponsive or difficult to work with. + - The lack of a central group of "committers" means there is + less need for formal decisions about who is "in" and who is + "out". + [[setting-up-gitweb]] -Allow web browsing of a repository ----------------------------------- +Allowing web browsing of a repository +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The gitweb cgi script provides users an easy way to browse your project's files and history without having to install git; see the file @@ -1974,7 +1975,302 @@ gitweb/INSTALL in the git source tree for instructions on setting it up. Examples -------- -TODO: topic branches, typical roles as in everyday.txt, ? +[[maintaining-topic-branches]] +Maintaining topic branches for a Linux subsystem maintainer +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +This describes how Tony Luck uses git in his role as maintainer of the +IA64 architecture for the Linux kernel. + +He uses two public branches: + + - A "test" tree into which patches are initially placed so that they + can get some exposure when integrated with other ongoing development. + This tree is available to Andrew for pulling into -mm whenever he + wants. + + - A "release" tree into which tested patches are moved for final sanity + checking, and as a vehicle to send them upstream to Linus (by sending + him a "please pull" request.) + +He also uses a set of temporary branches ("topic branches"), each +containing a logical grouping of patches. + +To set this up, first create your work tree by cloning Linus's public +tree: + +------------------------------------------------- +$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git work +$ cd work +------------------------------------------------- + +Linus's tree will be stored in the remote branch named origin/master, +and can be updated using gitlink:git-fetch[1]; you can track other +public trees using gitlink:git-remote[1] to set up a "remote" and +git-fetch[1] to keep them up-to-date; see <<repositories-and-branches>>. + +Now create the branches in which you are going to work; these start out +at the current tip of origin/master branch, and should be set up (using +the --track option to gitlink:git-branch[1]) to merge changes in from +Linus by default. + +------------------------------------------------- +$ git branch --track test origin/master +$ git branch --track release origin/master +------------------------------------------------- + +These can be easily kept up to date using gitlink:git-pull[1] + +------------------------------------------------- +$ git checkout test && git pull +$ git checkout release && git pull +------------------------------------------------- + +Important note! If you have any local changes in these branches, then +this merge will create a commit object in the history (with no local +changes git will simply do a "Fast forward" merge). Many people dislike +the "noise" that this creates in the Linux history, so you should avoid +doing this capriciously in the "release" branch, as these noisy commits +will become part of the permanent history when you ask Linus to pull +from the release branch. + +A few configuration variables (see gitlink:git-config[1]) can +make it easy to push both branches to your public tree. (See +<<setting-up-a-public-repository>>.) + +------------------------------------------------- +$ cat >> .git/config <<EOF +[remote "mytree"] + url = master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git + push = release + push = test +EOF +------------------------------------------------- + +Then you can push both the test and release trees using +gitlink:git-push[1]: + +------------------------------------------------- +$ git push mytree +------------------------------------------------- + +or push just one of the test and release branches using: + +------------------------------------------------- +$ git push mytree test +------------------------------------------------- + +or + +------------------------------------------------- +$ git push mytree release +------------------------------------------------- + +Now to apply some patches from the community. Think of a short +snappy name for a branch to hold this patch (or related group of +patches), and create a new branch from the current tip of Linus's +branch: + +------------------------------------------------- +$ git checkout -b speed-up-spinlocks origin +------------------------------------------------- + +Now you apply the patch(es), run some tests, and commit the change(s). If +the patch is a multi-part series, then you should apply each as a separate +commit to this branch. + +------------------------------------------------- +$ ... patch ... test ... commit [ ... patch ... test ... commit ]* +------------------------------------------------- + +When you are happy with the state of this change, you can pull it into the +"test" branch in preparation to make it public: + +------------------------------------------------- +$ git checkout test && git pull . speed-up-spinlocks +------------------------------------------------- + +It is unlikely that you would have any conflicts here ... but you might if you +spent a while on this step and had also pulled new versions from upstream. + +Some time later when enough time has passed and testing done, you can pull the +same branch into the "release" tree ready to go upstream. This is where you +see the value of keeping each patch (or patch series) in its own branch. It +means that the patches can be moved into the "release" tree in any order. + +------------------------------------------------- +$ git checkout release && git pull . speed-up-spinlocks +------------------------------------------------- + +After a while, you will have a number of branches, and despite the +well chosen names you picked for each of them, you may forget what +they are for, or what status they are in. To get a reminder of what +changes are in a specific branch, use: + +------------------------------------------------- +$ git log linux..branchname | git-shortlog +------------------------------------------------- + +To see whether it has already been merged into the test or release branches +use: + +------------------------------------------------- +$ git log test..branchname +------------------------------------------------- + +or + +------------------------------------------------- +$ git log release..branchname +------------------------------------------------- + +(If this branch has not yet been merged you will see some log entries. +If it has been merged, then there will be no output.) + +Once a patch completes the great cycle (moving from test to release, +then pulled by Linus, and finally coming back into your local +"origin/master" branch) the branch for this change is no longer needed. +You detect this when the output from: + +------------------------------------------------- +$ git log origin..branchname +------------------------------------------------- + +is empty. At this point the branch can be deleted: + +------------------------------------------------- +$ git branch -d branchname +------------------------------------------------- + +Some changes are so trivial that it is not necessary to create a separate +branch and then merge into each of the test and release branches. For +these changes, just apply directly to the "release" branch, and then +merge that into the "test" branch. + +To create diffstat and shortlog summaries of changes to include in a "please +pull" request to Linus you can use: + +------------------------------------------------- +$ git diff --stat origin..release +------------------------------------------------- + +and + +------------------------------------------------- +$ git log -p origin..release | git shortlog +------------------------------------------------- + +Here are some of the scripts that simplify all this even further. + +------------------------------------------------- +==== update script ==== +# Update a branch in my GIT tree. If the branch to be updated +# is origin, then pull from kernel.org. Otherwise merge +# origin/master branch into test|release branch + +case "$1" in +test|release) + git checkout $1 && git pull . origin + ;; +origin) + before=$(cat .git/refs/remotes/origin/master) + git fetch origin + after=$(cat .git/refs/remotes/origin/master) + if [ $before != $after ] + then + git log $before..$after | git shortlog + fi + ;; +*) + echo "Usage: $0 origin|test|release" 1>&2 + exit 1 + ;; +esac +------------------------------------------------- + +------------------------------------------------- +==== merge script ==== +# Merge a branch into either the test or release branch + +pname=$0 + +usage() +{ + echo "Usage: $pname branch test|release" 1>&2 + exit 1 +} + +if [ ! -f .git/refs/heads/"$1" ] +then + echo "Can't see branch <$1>" 1>&2 + usage +fi + +case "$2" in +test|release) + if [ $(git log $2..$1 | wc -c) -eq 0 ] + then + echo $1 already merged into $2 1>&2 + exit 1 + fi + git checkout $2 && git pull . $1 + ;; +*) + usage + ;; +esac +------------------------------------------------- + +------------------------------------------------- +==== status script ==== +# report on status of my ia64 GIT tree + +gb=$(tput setab 2) +rb=$(tput setab 1) +restore=$(tput setab 9) + +if [ `git rev-list test..release | wc -c` -gt 0 ] +then + echo $rb Warning: commits in release that are not in test $restore + git log test..release +fi + +for branch in `ls .git/refs/heads` +do + if [ $branch = test -o $branch = release ] + then + continue + fi + + echo -n $gb ======= $branch ====== $restore " " + status= + for ref in test release origin/master + do + if [ `git rev-list $ref..$branch | wc -c` -gt 0 ] + then + status=$status${ref:0:1} + fi + done + case $status in + trl) + echo $rb Need to pull into test $restore + ;; + rl) + echo "In test" + ;; + l) + echo "Waiting for linus" + ;; + "") + echo $rb All done $restore + ;; + *) + echo $rb "<$status>" $restore + ;; + esac + git log origin/master..$branch | git shortlog +done +------------------------------------------------- [[cleaning-up-history]] @@ -3160,12 +3456,454 @@ confusing and scary messages, but it won't actually do anything bad. In contrast, running "git prune" while somebody is actively changing the repository is a *BAD* idea). +[[birdview-on-the-source-code]] +A birds-eye view of Git's source code +------------------------------------- + +It is not always easy for new developers to find their way through Git's +source code. This section gives you a little guidance to show where to +start. + +A good place to start is with the contents of the initial commit, with: + +---------------------------------------------------- +$ git checkout e83c5163 +---------------------------------------------------- + +The initial revision lays the foundation for almost everything git has +today, but is small enough to read in one sitting. + +Note that terminology has changed since that revision. For example, the +README in that revision uses the word "changeset" to describe what we +now call a <<def_commit_object,commit>>. + +Also, we do not call it "cache" any more, but "index", however, the +file is still called `cache.h`. Remark: Not much reason to change it now, +especially since there is no good single name for it anyway, because it is +basically _the_ header file which is included by _all_ of Git's C sources. + +If you grasp the ideas in that initial commit, you should check out a +more recent version and skim `cache.h`, `object.h` and `commit.h`. + +In the early days, Git (in the tradition of UNIX) was a bunch of programs +which were extremely simple, and which you used in scripts, piping the +output of one into another. This turned out to be good for initial +development, since it was easier to test new things. However, recently +many of these parts have become builtins, and some of the core has been +"libified", i.e. put into libgit.a for performance, portability reasons, +and to avoid code duplication. + +By now, you know what the index is (and find the corresponding data +structures in `cache.h`), and that there are just a couple of object types +(blobs, trees, commits and tags) which inherit their common structure from +`struct object`, which is their first member (and thus, you can cast e.g. +`(struct object *)commit` to achieve the _same_ as `&commit->object`, i.e. +get at the object name and flags). + +Now is a good point to take a break to let this information sink in. + +Next step: get familiar with the object naming. Read <<naming-commits>>. +There are quite a few ways to name an object (and not only revisions!). +All of these are handled in `sha1_name.c`. Just have a quick look at +the function `get_sha1()`. A lot of the special handling is done by +functions like `get_sha1_basic()` or the likes. + +This is just to get you into the groove for the most libified part of Git: +the revision walker. + +Basically, the initial version of `git log` was a shell script: + +---------------------------------------------------------------- +$ git-rev-list --pretty $(git-rev-parse --default HEAD "$@") | \ + LESS=-S ${PAGER:-less} +---------------------------------------------------------------- + +What does this mean? + +`git-rev-list` is the original version of the revision walker, which +_always_ printed a list of revisions to stdout. It is still functional, +and needs to, since most new Git programs start out as scripts using +`git-rev-list`. + +`git-rev-parse` is not as important any more; it was only used to filter out +options that were relevant for the different plumbing commands that were +called by the script. + +Most of what `git-rev-list` did is contained in `revision.c` and +`revision.h`. It wraps the options in a struct named `rev_info`, which +controls how and what revisions are walked, and more. + +The original job of `git-rev-parse` is now taken by the function +`setup_revisions()`, which parses the revisions and the common command line +options for the revision walker. This information is stored in the struct +`rev_info` for later consumption. You can do your own command line option +parsing after calling `setup_revisions()`. After that, you have to call +`prepare_revision_walk()` for initialization, and then you can get the +commits one by one with the function `get_revision()`. + +If you are interested in more details of the revision walking process, +just have a look at the first implementation of `cmd_log()`; call +`git-show v1.3.0~155^2~4` and scroll down to that function (note that you +no longer need to call `setup_pager()` directly). + +Nowadays, `git log` is a builtin, which means that it is _contained_ in the +command `git`. The source side of a builtin is + +- a function called `cmd_<bla>`, typically defined in `builtin-<bla>.c`, + and declared in `builtin.h`, + +- an entry in the `commands[]` array in `git.c`, and + +- an entry in `BUILTIN_OBJECTS` in the `Makefile`. + +Sometimes, more than one builtin is contained in one source file. For +example, `cmd_whatchanged()` and `cmd_log()` both reside in `builtin-log.c`, +since they share quite a bit of code. In that case, the commands which are +_not_ named like the `.c` file in which they live have to be listed in +`BUILT_INS` in the `Makefile`. + +`git log` looks more complicated in C than it does in the original script, +but that allows for a much greater flexibility and performance. + +Here again it is a good point to take a pause. + +Lesson three is: study the code. Really, it is the best way to learn about +the organization of Git (after you know the basic concepts). + +So, think about something which you are interested in, say, "how can I +access a blob just knowing the object name of it?". The first step is to +find a Git command with which you can do it. In this example, it is either +`git show` or `git cat-file`. + +For the sake of clarity, let's stay with `git cat-file`, because it + +- is plumbing, and + +- was around even in the initial commit (it literally went only through + some 20 revisions as `cat-file.c`, was renamed to `builtin-cat-file.c` + when made a builtin, and then saw less than 10 versions). + +So, look into `builtin-cat-file.c`, search for `cmd_cat_file()` and look what +it does. + +------------------------------------------------------------------ + git_config(git_default_config); + if (argc != 3) + usage("git-cat-file [-t|-s|-e|-p|<type>] <sha1>"); + if (get_sha1(argv[2], sha1)) + die("Not a valid object name %s", argv[2]); +------------------------------------------------------------------ + +Let's skip over the obvious details; the only really interesting part +here is the call to `get_sha1()`. It tries to interpret `argv[2]` as an +object name, and if it refers to an object which is present in the current +repository, it writes the resulting SHA-1 into the variable `sha1`. + +Two things are interesting here: + +- `get_sha1()` returns 0 on _success_. This might surprise some new + Git hackers, but there is a long tradition in UNIX to return different + negative numbers in case of different errors -- and 0 on success. + +- the variable `sha1` in the function signature of `get_sha1()` is `unsigned + char \*`, but is actually expected to be a pointer to `unsigned + char[20]`. This variable will contain the 160-bit SHA-1 of the given + commit. Note that whenever a SHA-1 is passed as `unsigned char \*`, it + is the binary representation, as opposed to the ASCII representation in + hex characters, which is passed as `char *`. + +You will see both of these things throughout the code. + +Now, for the meat: + +----------------------------------------------------------------------------- + case 0: + buf = read_object_with_reference(sha1, argv[1], &size, NULL); +----------------------------------------------------------------------------- + +This is how you read a blob (actually, not only a blob, but any type of +object). To know how the function `read_object_with_reference()` actually +works, find the source code for it (something like `git grep +read_object_with | grep ":[a-z]"` in the git repository), and read +the source. + +To find out how the result can be used, just read on in `cmd_cat_file()`: + +----------------------------------- + write_or_die(1, buf, size); +----------------------------------- + +Sometimes, you do not know where to look for a feature. In many such cases, +it helps to search through the output of `git log`, and then `git show` the +corresponding commit. + +Example: If you know that there was some test case for `git bundle`, but +do not remember where it was (yes, you _could_ `git grep bundle t/`, but that +does not illustrate the point!): + +------------------------ +$ git log --no-merges t/ +------------------------ + +In the pager (`less`), just search for "bundle", go a few lines back, +and see that it is in commit 18449ab0... Now just copy this object name, +and paste it into the command line + +------------------- +$ git show 18449ab0 +------------------- + +Voila. + +Another example: Find out what to do in order to make some script a +builtin: + +------------------------------------------------- +$ git log --no-merges --diff-filter=A builtin-*.c +------------------------------------------------- + +You see, Git is actually the best tool to find out about the source of Git +itself! + [[glossary]] include::glossary.txt[] +[[git-quick-start]] +Appendix A: Git Quick Start +=========================== + +This is a quick summary of the major commands; the following chapters +will explain how these work in more detail. + +[[quick-creating-a-new-repository]] +Creating a new repository +------------------------- + +From a tarball: + +----------------------------------------------- +$ tar xzf project.tar.gz +$ cd project +$ git init +Initialized empty Git repository in .git/ +$ git add . +$ git commit +----------------------------------------------- + +From a remote repository: + +----------------------------------------------- +$ git clone git://example.com/pub/project.git +$ cd project +----------------------------------------------- + +[[managing-branches]] +Managing branches +----------------- + +----------------------------------------------- +$ git branch # list all local branches in this repo +$ git checkout test # switch working directory to branch "test" +$ git branch new # create branch "new" starting at current HEAD +$ git branch -d new # delete branch "new" +----------------------------------------------- + +Instead of basing new branch on current HEAD (the default), use: + +----------------------------------------------- +$ git branch new test # branch named "test" +$ git branch new v2.6.15 # tag named v2.6.15 +$ git branch new HEAD^ # commit before the most recent +$ git branch new HEAD^^ # commit before that +$ git branch new test~10 # ten commits before tip of branch "test" +----------------------------------------------- + +Create and switch to a new branch at the same time: + +----------------------------------------------- +$ git checkout -b new v2.6.15 +----------------------------------------------- + +Update and examine branches from the repository you cloned from: + +----------------------------------------------- +$ git fetch # update +$ git branch -r # list + origin/master + origin/next + ... +$ git checkout -b masterwork origin/master +----------------------------------------------- + +Fetch a branch from a different repository, and give it a new +name in your repository: + +----------------------------------------------- +$ git fetch git://example.com/project.git theirbranch:mybranch +$ git fetch git://example.com/project.git v2.6.15:mybranch +----------------------------------------------- + +Keep a list of repositories you work with regularly: + +----------------------------------------------- +$ git remote add example git://example.com/project.git +$ git remote # list remote repositories +example +origin +$ git remote show example # get details +* remote example + URL: git://example.com/project.git + Tracked remote branches + master next ... +$ git fetch example # update branches from example +$ git branch -r # list all remote branches +----------------------------------------------- + + +[[exploring-history]] +Exploring history +----------------- + +----------------------------------------------- +$ gitk # visualize and browse history +$ git log # list all commits +$ git log src/ # ...modifying src/ +$ git log v2.6.15..v2.6.16 # ...in v2.6.16, not in v2.6.15 +$ git log master..test # ...in branch test, not in branch master +$ git log test..master # ...in branch master, but not in test +$ git log test...master # ...in one branch, not in both +$ git log -S'foo()' # ...where difference contain "foo()" +$ git log --since="2 weeks ago" +$ git log -p # show patches as well +$ git show # most recent commit +$ git diff v2.6.15..v2.6.16 # diff between two tagged versions +$ git diff v2.6.15..HEAD # diff with current head +$ git grep "foo()" # search working directory for "foo()" +$ git grep v2.6.15 "foo()" # search old tree for "foo()" +$ git show v2.6.15:a.txt # look at old version of a.txt +----------------------------------------------- + +Search for regressions: + +----------------------------------------------- +$ git bisect start +$ git bisect bad # current version is bad +$ git bisect good v2.6.13-rc2 # last known good revision +Bisecting: 675 revisions left to test after this + # test here, then: +$ git bisect good # if this revision is good, or +$ git bisect bad # if this revision is bad. + # repeat until done. +----------------------------------------------- + +[[making-changes]] +Making changes +-------------- + +Make sure git knows who to blame: + +------------------------------------------------ +$ cat >>~/.gitconfig <<\EOF +[user] + name = Your Name Comes Here + email = you@yourdomain.example.com +EOF +------------------------------------------------ + +Select file contents to include in the next commit, then make the +commit: + +----------------------------------------------- +$ git add a.txt # updated file +$ git add b.txt # new file +$ git rm c.txt # old file +$ git commit +----------------------------------------------- + +Or, prepare and create the commit in one step: + +----------------------------------------------- +$ git commit d.txt # use latest content only of d.txt +$ git commit -a # use latest content of all tracked files +----------------------------------------------- + +[[merging]] +Merging +------- + +----------------------------------------------- +$ git merge test # merge branch "test" into the current branch +$ git pull git://example.com/project.git master + # fetch and merge in remote branch +$ git pull . test # equivalent to git merge test +----------------------------------------------- + +[[sharing-your-changes]] +Sharing your changes +-------------------- + +Importing or exporting patches: + +----------------------------------------------- +$ git format-patch origin..HEAD # format a patch for each commit + # in HEAD but not in origin +$ git am mbox # import patches from the mailbox "mbox" +----------------------------------------------- + +Fetch a branch in a different git repository, then merge into the +current branch: + +----------------------------------------------- +$ git pull git://example.com/project.git theirbranch +----------------------------------------------- + +Store the fetched branch into a local branch before merging into the +current branch: + +----------------------------------------------- +$ git pull git://example.com/project.git theirbranch:mybranch +----------------------------------------------- + +After creating commits on a local branch, update the remote +branch with your commits: + +----------------------------------------------- +$ git push ssh://example.com/project.git mybranch:theirbranch +----------------------------------------------- + +When remote and local branch are both named "test": + +----------------------------------------------- +$ git push ssh://example.com/project.git test +----------------------------------------------- + +Shortcut version for a frequently used remote repository: + +----------------------------------------------- +$ git remote add example ssh://example.com/project.git +$ git push example test +----------------------------------------------- + +[[repository-maintenance]] +Repository maintenance +---------------------- + +Check for corruption: + +----------------------------------------------- +$ git fsck +----------------------------------------------- + +Recompress, remove unused cruft: + +----------------------------------------------- +$ git gc +----------------------------------------------- + + [[todo]] -Notes and todo list for this manual -=================================== +Appendix B: Notes and todo list for this manual +=============================================== This is a work in progress. @@ -3184,8 +3922,6 @@ Think about how to create a clear chapter dependency graph that will allow people to get to important topics without necessarily reading everything in between. -Say something about .gitignore. - Scan Documentation/ for other stuff left out; in particular: howto's some of technical/? diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN index bd4a0443c4..06c360b267 100755 --- a/GIT-VERSION-GEN +++ b/GIT-VERSION-GEN @@ -1,7 +1,7 @@ #!/bin/sh GVF=GIT-VERSION-FILE -DEF_VER=v1.5.2-rc3.GIT +DEF_VER=v1.5.2.GIT LF=' ' @@ -318,7 +318,7 @@ LIB_OBJS = \ write_or_die.o trace.o list-objects.o grep.o match-trees.o \ alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS) \ color.o wt-status.o archive-zip.o archive-tar.o shallow.o utf8.o \ - convert.o attr.o decorate.o progress.o mailmap.o + convert.o attr.o decorate.o progress.o mailmap.o symlinks.o BUILTIN_OBJS = \ builtin-add.o \ diff --git a/archive-tar.c b/archive-tar.c index d9c30d33dc..33e76576f1 100644 --- a/archive-tar.c +++ b/archive-tar.c @@ -82,12 +82,13 @@ static void strbuf_append_string(struct strbuf *sb, const char *s) { int slen = strlen(s); int total = sb->len + slen; - if (total > sb->alloc) { - sb->buf = xrealloc(sb->buf, total); - sb->alloc = total; + if (total + 1 > sb->alloc) { + sb->buf = xrealloc(sb->buf, total + 1); + sb->alloc = total + 1; } memcpy(sb->buf + sb->len, s, slen); sb->len = total; + sb->buf[total] = '\0'; } /* @@ -166,7 +167,7 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path, } else { if (verbose) fprintf(stderr, "%.*s\n", path->len, path->buf); - if (S_ISDIR(mode)) { + if (S_ISDIR(mode) || S_ISDIRLNK(mode)) { *header.typeflag = TYPEFLAG_DIR; mode = (mode | 0777) & ~tar_umask; } else if (S_ISLNK(mode)) { @@ -270,20 +271,21 @@ static int write_tar_entry(const unsigned char *sha1, path.alloc = PATH_MAX; path.len = path.eof = 0; } - if (path.alloc < baselen + filenamelen) { + if (path.alloc < baselen + filenamelen + 1) { free(path.buf); - path.buf = xmalloc(baselen + filenamelen); - path.alloc = baselen + filenamelen; + path.buf = xmalloc(baselen + filenamelen + 1); + path.alloc = baselen + filenamelen + 1; } memcpy(path.buf, base, baselen); memcpy(path.buf + baselen, filename, filenamelen); path.len = baselen + filenamelen; - if (S_ISDIR(mode)) { + path.buf[path.len] = '\0'; + if (S_ISDIR(mode) || S_ISDIRLNK(mode)) { strbuf_append_string(&path, "/"); buffer = NULL; size = 0; } else { - buffer = read_sha1_file(sha1, &type, &size); + buffer = convert_sha1_file(path.buf, sha1, mode, &type, &size); if (!buffer) die("cannot read %s", sha1_to_hex(sha1)); } diff --git a/archive-zip.c b/archive-zip.c index 7c4984886f..3cbf6bb8ac 100644 --- a/archive-zip.c +++ b/archive-zip.c @@ -182,10 +182,10 @@ static int write_zip_entry(const unsigned char *sha1, goto out; } - if (S_ISDIR(mode)) { + if (S_ISDIR(mode) || S_ISDIRLNK(mode)) { method = 0; attr2 = 16; - result = READ_TREE_RECURSIVE; + result = (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0); out = NULL; uncompressed_size = 0; compressed_size = 0; @@ -195,7 +195,7 @@ static int write_zip_entry(const unsigned char *sha1, if (S_ISREG(mode) && zlib_compression_level != 0) method = 8; result = 0; - buffer = read_sha1_file(sha1, &type, &size); + buffer = convert_sha1_file(path, sha1, mode, &type, &size); if (!buffer) die("cannot read %s", sha1_to_hex(sha1)); crc = crc32(crc, buffer, size); diff --git a/arm/sha1_arm.S b/arm/sha1_arm.S index da92d20e84..a328b73375 100644 --- a/arm/sha1_arm.S +++ b/arm/sha1_arm.S @@ -23,7 +23,7 @@ sha_transform: stmfd sp!, {r4 - r8, lr} @ for (i = 0; i < 16; i++) - @ W[i] = ntohl(((uint32_t *)data)[i]); */ + @ W[i] = ntohl(((uint32_t *)data)[i]); #ifdef __ARMEB__ mov r4, r0 diff --git a/builtin-add.c b/builtin-add.c index 5e6748f356..159117106a 100644 --- a/builtin-add.c +++ b/builtin-add.c @@ -16,7 +16,7 @@ static const char builtin_add_usage[] = "git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--] <filepattern>..."; -static int take_all_worktree_changes; +static int take_worktree_changes; static const char *excludes_file; static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix) @@ -122,11 +122,12 @@ static void update_callback(struct diff_queue_struct *q, } } -static void update_all(int verbose) +static void update(int verbose, const char **files) { struct rev_info rev; init_revisions(&rev, ""); setup_revisions(0, NULL, &rev, NULL); + rev.prune_data = get_pathspec(rev.prefix, files); rev.diffopt.output_format = DIFF_FORMAT_CALLBACK; rev.diffopt.format_callback = update_callback; rev.diffopt.format_callback_data = &verbose; @@ -200,16 +201,14 @@ int cmd_add(int argc, const char **argv, const char *prefix) continue; } if (!strcmp(arg, "-u")) { - take_all_worktree_changes = 1; + take_worktree_changes = 1; continue; } usage(builtin_add_usage); } - if (take_all_worktree_changes) { - if (i < argc) - die("-u and explicit paths are incompatible"); - update_all(verbose); + if (take_worktree_changes) { + update(verbose, argv + i); goto finish; } diff --git a/builtin-apply.c b/builtin-apply.c index f94d0dbf48..0399743c4e 100644 --- a/builtin-apply.c +++ b/builtin-apply.c @@ -185,7 +185,7 @@ static void *read_patch_file(int fd, unsigned long *sizep) void *buffer = xmalloc(alloc); for (;;) { - int nr = alloc - size; + ssize_t nr = alloc - size; if (nr < 1024) { alloc += CHUNKSIZE; buffer = xrealloc(buffer, alloc); @@ -1468,7 +1468,7 @@ static int read_old_data(struct stat *st, const char *path, char **buf_p, unsign return error("unable to open %s", path); got = 0; for (;;) { - int ret = xread(fd, buf + got, size - got); + ssize_t ret = xread(fd, buf + got, size - got); if (ret <= 0) break; got += ret; @@ -2009,6 +2009,29 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry * return 0; } +static int check_to_create_blob(const char *new_name, int ok_if_exists) +{ + struct stat nst; + if (!lstat(new_name, &nst)) { + if (S_ISDIR(nst.st_mode) || ok_if_exists) + return 0; + /* + * A leading component of new_name might be a symlink + * that is going to be removed with this patch, but + * still pointing at somewhere that has the path. + * In such a case, path "new_name" does not exist as + * far as git is concerned. + */ + if (has_symlink_leading_path(new_name, NULL)) + return 0; + + return error("%s: already exists in working directory", new_name); + } + else if ((errno != ENOENT) && (errno != ENOTDIR)) + return error("%s: %s", new_name, strerror(errno)); + return 0; +} + static int check_patch(struct patch *patch, struct patch *prev_patch) { struct stat st; @@ -2095,15 +2118,9 @@ static int check_patch(struct patch *patch, struct patch *prev_patch) !ok_if_exists) return error("%s: already exists in index", new_name); if (!cached) { - struct stat nst; - if (!lstat(new_name, &nst)) { - if (S_ISDIR(nst.st_mode) || ok_if_exists) - ; /* ok */ - else - return error("%s: already exists in working directory", new_name); - } - else if ((errno != ENOENT) && (errno != ENOTDIR)) - return error("%s: %s", new_name, strerror(errno)); + int err = check_to_create_blob(new_name, ok_if_exists); + if (err) + return err; } if (!patch->new_mode) { if (0 < patch->is_new) diff --git a/builtin-bundle.c b/builtin-bundle.c index d1635a0a6b..306ad29597 100644 --- a/builtin-bundle.c +++ b/builtin-bundle.c @@ -48,7 +48,7 @@ static int read_string(int fd, char *buffer, int size) { int i; for (i = 0; i < size - 1; i++) { - int count = xread(fd, buffer + i, 1); + ssize_t count = xread(fd, buffer + i, 1); if (count < 0) return error("Read error: %s", strerror(errno)); if (count == 0) { diff --git a/builtin-fetch--tool.c b/builtin-fetch--tool.c index 2065466f27..12adb3833c 100644 --- a/builtin-fetch--tool.c +++ b/builtin-fetch--tool.c @@ -6,11 +6,11 @@ static char *get_stdin(void) { - int offset = 0; + size_t offset = 0; char *data = xmalloc(CHUNK_SIZE); while (1) { - int cnt = xread(0, data + offset, CHUNK_SIZE); + ssize_t cnt = xread(0, data + offset, CHUNK_SIZE); if (cnt < 0) die("error reading standard input: %s", strerror(errno)); diff --git a/builtin-log.c b/builtin-log.c index 38bf52f100..37447123f9 100644 --- a/builtin-log.c +++ b/builtin-log.c @@ -454,7 +454,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) /* * Parse the arguments before setup_revisions(), or something - * like "git fmt-patch -o a123 HEAD^.." may fail; a123 is + * like "git format-patch -o a123 HEAD^.." may fail; a123 is * possibly a valid SHA1. */ for (i = 1, j = 1; i < argc; i++) { diff --git a/builtin-name-rev.c b/builtin-name-rev.c index c022224361..ef16385907 100644 --- a/builtin-name-rev.c +++ b/builtin-name-rev.c @@ -58,7 +58,10 @@ copy_data: parents = parents->next, parent_number++) { if (parent_number > 1) { int len = strlen(tip_name); - char *new_name = xmalloc(len + 8); + char *new_name = xmalloc(len + + 1 + decimal_length(generation) + /* ~<n> */ + 1 + 2 + /* ^NN */ + 1); if (len > 2 && !strcmp(tip_name + len - 2, "^0")) len -= 2; diff --git a/builtin-unpack-objects.c b/builtin-unpack-objects.c index 2bbda67fab..a6ff62fd8c 100644 --- a/builtin-unpack-objects.c +++ b/builtin-unpack-objects.c @@ -34,7 +34,7 @@ static void *fill(int min) offset = 0; } do { - int ret = xread(0, buffer + len, sizeof(buffer) - len); + ssize_t ret = xread(0, buffer + len, sizeof(buffer) - len); if (ret <= 0) { if (!ret) die("early EOF"); @@ -410,6 +410,7 @@ struct checkout { }; extern int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *topath); +extern int has_symlink_leading_path(const char *name, char *last_symlink); extern struct alternate_object_database { struct alternate_object_database *next; @@ -547,6 +548,7 @@ extern void trace_argv_printf(const char **argv, int count, const char *format, /* convert.c */ extern char *convert_to_git(const char *path, const char *src, unsigned long *sizep); extern char *convert_to_working_tree(const char *path, const char *src, unsigned long *sizep); +extern void *convert_sha1_file(const char *path, const unsigned char *sha1, unsigned int mode, enum object_type *type, unsigned long *size); /* match-trees.c */ void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int); diff --git a/combine-diff.c b/combine-diff.c index cff9c5dc42..ea3ca5f950 100644 --- a/combine-diff.c +++ b/combine-diff.c @@ -714,7 +714,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent, result_size = len; result = xmalloc(len + 1); while (sz < len) { - int done = xread(fd, result+sz, len-sz); + ssize_t done = xread(fd, result+sz, len-sz); if (done == 0) break; if (done < 0) @@ -1063,6 +1063,7 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, int sz; char header[512]; const char *header_fmt = + "MIME-Version: 1.0\n" "Content-Type: text/plain; charset=%s\n" "Content-Transfer-Encoding: 8bit\n"; sz = snprintf(header, sizeof(header), header_fmt, @@ -451,6 +451,9 @@ static int matches(const char* key, const char* value) static int store_aux(const char* key, const char* value) { + const char *ep; + size_t section_len; + switch (store.state) { case KEY_SEEN: if (matches(key, value)) { @@ -468,12 +471,29 @@ static int store_aux(const char* key, const char* value) } break; case SECTION_SEEN: - if (strncmp(key, store.key, store.baselen+1)) { + /* + * What we are looking for is in store.key (both + * section and var), and its section part is baselen + * long. We found key (again, both section and var). + * We would want to know if this key is in the same + * section as what we are looking for. We already + * know we are in the same section as what should + * hold store.key. + */ + ep = strrchr(key, '.'); + section_len = ep - key; + + if ((section_len != store.baselen) || + memcmp(key, store.key, section_len+1)) { store.state = SECTION_END_SEEN; break; - } else - /* do not increment matches: this is no match */ - store.offset[store.seen] = ftell(config_file); + } + + /* + * Do not increment matches: this is no match, but we + * just made sure we are in the desired section. + */ + store.offset[store.seen] = ftell(config_file); /* fallthru */ case SECTION_END_SEEN: case START: diff --git a/contrib/fast-import/import-tars.perl b/contrib/fast-import/import-tars.perl index 1e6fa5a15c..23aeb257b9 100755 --- a/contrib/fast-import/import-tars.perl +++ b/contrib/fast-import/import-tars.perl @@ -75,7 +75,7 @@ foreach my $tar_file (@ARGV) $mode = oct $mode; $size = oct $size; $mtime = oct $mtime; - next if $mode & 0040000; + next if $typeflag == 5; # directory print FI "blob\n", "mark :$next_mark\n", "data $size\n"; while ($size > 0 && read(I, $_, 512) == 512) { @@ -86,7 +86,7 @@ static char *crlf_to_git(const char *path, const char *src, unsigned long *sizep unsigned long size, nsize; struct text_stat stats; - if ((action == CRLF_BINARY) || (action == CRLF_GUESS && !auto_crlf)) + if ((action == CRLF_BINARY) || !auto_crlf) return NULL; size = *sizep; @@ -154,7 +154,7 @@ static char *crlf_to_worktree(const char *path, const char *src, unsigned long * unsigned char last; if ((action == CRLF_BINARY) || (action == CRLF_INPUT) || - (action == CRLF_GUESS && auto_crlf <= 0)) + auto_crlf <= 0) return NULL; size = *sizep; @@ -412,7 +412,7 @@ static void setup_convert_check(struct git_attr_check *check) static int count_ident(const char *cp, unsigned long size) { /* - * "$ident: 0000000000000000000000000000000000000000 $" <=> "$ident$" + * "$Id: 0000000000000000000000000000000000000000 $" <=> "$Id$" */ int cnt = 0; char ch; @@ -422,20 +422,20 @@ static int count_ident(const char *cp, unsigned long size) size--; if (ch != '$') continue; - if (size < 6) + if (size < 3) break; - if (memcmp("ident", cp, 5)) + if (memcmp("Id", cp, 2)) continue; - ch = cp[5]; - cp += 6; - size -= 6; + ch = cp[2]; + cp += 3; + size -= 3; if (ch == '$') - cnt++; /* $ident$ */ + cnt++; /* $Id$ */ if (ch != ':') continue; /* - * "$ident: ... "; scan up to the closing dollar sign and discard. + * "$Id: ... "; scan up to the closing dollar sign and discard. */ while (size) { ch = *cp++; @@ -466,10 +466,10 @@ static char *ident_to_git(const char *path, const char *src, unsigned long *size for (dst = buf; size; size--) { char ch = *src++; *dst++ = ch; - if ((ch == '$') && (6 <= size) && - !memcmp("ident:", src, 6)) { - unsigned long rem = size - 6; - const char *cp = src + 6; + if ((ch == '$') && (3 <= size) && + !memcmp("Id:", src, 3)) { + unsigned long rem = size - 3; + const char *cp = src + 3; do { ch = *cp++; if (ch == '$') @@ -478,8 +478,8 @@ static char *ident_to_git(const char *path, const char *src, unsigned long *size } while (rem); if (!rem) continue; - memcpy(dst, "ident$", 6); - dst += 6; + memcpy(dst, "Id$", 3); + dst += 3; size -= (cp - src); src = cp; } @@ -511,13 +511,13 @@ static char *ident_to_worktree(const char *path, const char *src, unsigned long const char *cp; char ch = *src++; *dst++ = ch; - if ((ch != '$') || (size < 6) || memcmp("ident", src, 5)) + if ((ch != '$') || (size < 3) || memcmp("Id", src, 2)) continue; - if (src[5] == ':') { + if (src[2] == ':') { /* discard up to but not including the closing $ */ - unsigned long rem = size - 6; - cp = src + 6; + unsigned long rem = size - 3; + cp = src + 3; do { ch = *cp++; if (ch == '$') @@ -527,13 +527,13 @@ static char *ident_to_worktree(const char *path, const char *src, unsigned long if (!rem) continue; size -= (cp - src); - } else if (src[5] == '$') - cp = src + 5; + } else if (src[2] == '$') + cp = src + 2; else continue; - memcpy(dst, "ident: ", 7); - dst += 7; + memcpy(dst, "Id: ", 4); + dst += 4; memcpy(dst, sha1_to_hex(sha1), 40); dst += 40; *dst++ = ' '; @@ -652,3 +652,18 @@ char *convert_to_working_tree(const char *path, const char *src, unsigned long * return buf; } + +void *convert_sha1_file(const char *path, const unsigned char *sha1, + unsigned int mode, enum object_type *type, + unsigned long *size) +{ + void *buffer = read_sha1_file(sha1, type, size); + if (S_ISREG(mode) && buffer) { + void *converted = convert_to_working_tree(path, buffer, size); + if (converted) { + free(buffer); + buffer = converted; + } + } + return buffer; +} @@ -3,10 +3,9 @@ int copy_fd(int ifd, int ofd) { while (1) { - int len; char buffer[8192]; char *buf = buffer; - len = xread(ifd, buffer, sizeof(buffer)); + ssize_t len = xread(ifd, buffer, sizeof(buffer)); if (!len) break; if (len < 0) { @@ -1411,7 +1411,7 @@ static int populate_from_stdin(struct diff_filespec *s) #define INCREMENT 1024 char *buf; unsigned long size; - int got; + ssize_t got; size = 0; buf = NULL; diff --git a/git-clone.sh b/git-clone.sh index 70374aaaf0..fdd354f2da 100755 --- a/git-clone.sh +++ b/git-clone.sh @@ -22,10 +22,10 @@ get_repo_base() { cd "`/bin/pwd`" && cd "$1" && { - cd .git 2>/dev/null + cd .git pwd } - ) + ) 2>/dev/null } if [ -n "$GIT_SSL_NO_VERIFY" ]; then diff --git a/git-compat-util.h b/git-compat-util.h index c08688c8f3..6bd8987b27 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -21,6 +21,9 @@ #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (sizeof(x) * 8 - (bits)))) +/* Approximation of the length of the decimal representation of this type. */ +#define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) + #if !defined(__APPLE__) && !defined(__FreeBSD__) #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */ #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */ diff --git a/git-cvsexportcommit.perl b/git-cvsexportcommit.perl index 6ed471918d..d6ae99b8c0 100755 --- a/git-cvsexportcommit.perl +++ b/git-cvsexportcommit.perl @@ -160,36 +160,51 @@ foreach my $p (@afiles) { } } +# ... check dirs, foreach my $d (@dirs) { if (-e $d) { $dirty = 1; warn "$d exists and is not a directory!\n"; } } -foreach my $f (@afiles) { - # This should return only one value - if ($f =~ m,(.*)/[^/]*$,) { - my $p = $1; - next if (grep { $_ eq $p } @dirs); + +# ... query status of all files that we have a directory for and parse output of 'cvs status' to %cvsstat. +my @canstatusfiles; +foreach my $f (@files) { + my $path = dirname $f; + next if (grep { $_ eq $path } @dirs); + push @canstatusfiles, $f; +} + +my %cvsstat; +if (@canstatusfiles) { + my @cvsoutput; + @cvsoutput= safe_pipe_capture(@cvs, 'status', @canstatusfiles); + my $matchcount = 0; + foreach my $l (@cvsoutput) { + chomp $l; + if ( $l =~ /^File:/ and $l =~ /Status: (.*)$/ ) { + $cvsstat{$canstatusfiles[$matchcount]} = $1; + $matchcount++; + } } - my @status = grep(m/^File/, safe_pipe_capture(@cvs, '-q', 'status' ,$f)); - if (@status > 1) { warn 'Strange! cvs status returned more than one line?'}; - if (-d dirname $f and $status[0] !~ m/Status: Unknown$/ - and $status[0] !~ m/^File: no file /) { +} + +# ... validate new files, +foreach my $f (@afiles) { + if (defined ($cvsstat{$f}) and $cvsstat{$f} ne "Unknown") { $dirty = 1; warn "File $f is already known in your CVS checkout -- perhaps it has been added by another user. Or this may indicate that it exists on a different branch. If this is the case, use -f to force the merge.\n"; - warn "Status was: $status[0]\n"; + warn "Status was: $cvsstat{$f}\n"; } } - +# ... validate known files. foreach my $f (@files) { next if grep { $_ eq $f } @afiles; # TODO:we need to handle removed in cvs - my @status = grep(m/^File/, safe_pipe_capture(@cvs, '-q', 'status' ,$f)); - if (@status > 1) { warn 'Strange! cvs status returned more than one line?'}; - unless ($status[0] =~ m/Status: Up-to-date$/) { + unless (defined ($cvsstat{$f}) and $cvsstat{$f} eq "Up-to-date") { $dirty = 1; - warn "File $f not up to date in your CVS checkout!\n"; + warn "File $f not up to date but has status '$cvsstat{$f}' in your CVS checkout!\n"; } } if ($dirty) { diff --git a/git-cvsserver.perl b/git-cvsserver.perl index 3e7bf5b54a..fcfb99db65 100755 --- a/git-cvsserver.perl +++ b/git-cvsserver.perl @@ -105,6 +105,7 @@ if (@ARGV && $ARGV[0] eq 'pserver') { unless ($line eq 'anonymous') { print "E Only anonymous user allowed via pserver\n"; print "I HATE YOU\n"; + exit 1; } $line = <STDIN>; chomp $line; # validate the password? $line = <STDIN>; chomp $line; @@ -183,9 +184,9 @@ sub req_Root } foreach my $line ( @gitvars ) { - next unless ( $line =~ /^(.*?)\.(.*?)(?:\.(.*?))?=(.*)$/ ); - unless ($3) { - $cfg->{$1}{$2} = $4; + next unless ( $line =~ /^(gitcvs)\.(?:(ext|pserver)\.)?([\w-]+)=(.*)$/ ); + unless ($2) { + $cfg->{$1}{$3} = $4; } else { $cfg->{$1}{$2}{$3} = $4; } diff --git a/git-gui/Makefile b/git-gui/Makefile index e73b6453d9..ee564219c0 100644 --- a/git-gui/Makefile +++ b/git-gui/Makefile @@ -11,6 +11,7 @@ SCRIPT_SH = git-gui.sh GITGUI_BUILT_INS = git-citool ALL_PROGRAMS = $(GITGUI_BUILT_INS) $(patsubst %.sh,%,$(SCRIPT_SH)) ALL_LIBFILES = $(wildcard lib/*.tcl) +PRELOAD_FILES = lib/class.tcl ifndef SHELL_PATH SHELL_PATH = /bin/sh @@ -32,6 +33,7 @@ ifndef V QUIET_GEN = @echo ' ' GEN $@; QUIET_BUILT_IN = @echo ' ' BUILTIN $@; QUIET_INDEX = @echo ' ' INDEX $(dir $@); + QUIET_2DEVNULL = 2>/dev/null endif TCL_PATH ?= tclsh @@ -45,6 +47,7 @@ endif DESTDIR_SQ = $(subst ','\'',$(DESTDIR)) gitexecdir_SQ = $(subst ','\'',$(gitexecdir)) SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH)) +TCL_PATH_SQ = $(subst ','\'',$(TCL_PATH)) TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH)) libdir ?= $(sharedir)/git-gui/lib @@ -64,16 +67,26 @@ $(GITGUI_BUILT_INS): git-gui $(QUIET_BUILT_IN)rm -f $@ && ln git-gui $@ lib/tclIndex: $(ALL_LIBFILES) - $(QUIET_INDEX)echo \ - source lib/class.tcl \; \ + $(QUIET_INDEX)if echo \ + $(foreach p,$(PRELOAD_FILES),source $p\;) \ auto_mkindex lib '*.tcl' \ - | $(TCL_PATH) + | $(TCL_PATH) $(QUIET_2DEVNULL); then : ok; \ + else \ + echo 1>&2 " * $(TCL_PATH) failed; using unoptimized loading"; \ + rm -f $@ ; \ + echo '# Autogenerated by git-gui Makefile' >$@ && \ + echo >>$@ && \ + $(foreach p,$(PRELOAD_FILES) $(ALL_LIBFILES),echo '$(subst lib/,,$p)' >>$@ &&) \ + echo >>$@ ; \ + fi # These can record GITGUI_VERSION $(patsubst %.sh,%,$(SCRIPT_SH)): GIT-VERSION-FILE GIT-GUI-VARS +lib/tclIndex: GIT-GUI-VARS TRACK_VARS = \ $(subst ','\'',SHELL_PATH='$(SHELL_PATH_SQ)') \ + $(subst ','\'',TCL_PATH='$(TCL_PATH_SQ)') \ $(subst ','\'',TCLTK_PATH='$(TCLTK_PATH_SQ)') \ $(subst ','\'',libdir='$(libdir_SQ)') \ #end TRACK_VARS diff --git a/git-gui/git-gui.sh b/git-gui/git-gui.sh index 2fda4c2290..0a471a5c7d 100755 --- a/git-gui/git-gui.sh +++ b/git-gui/git-gui.sh @@ -28,7 +28,34 @@ set oguilib {@@GITGUI_LIBDIR@@} if {[string match @@* $oguilib]} { set oguilib [file join [file dirname [file normalize $argv0]] lib] } -set auto_path [concat [list $oguilib] $auto_path] +set idx [file join $oguilib tclIndex] +catch { + set fd [open $idx r] + if {[gets $fd] eq {# Autogenerated by git-gui Makefile}} { + set idx [list] + while {[gets $fd n] >= 0} { + if {$n ne {} && ![string match #* $n]} { + lappend idx $n + } + } + } else { + set idx {} + } + close $fd +} +if {$idx ne {}} { + set loaded [list] + foreach p $idx { + if {[lsearch -exact $loaded $p] >= 0} continue + puts $p + source [file join $oguilib $p] + lappend loaded $p + } + unset loaded p +} else { + set auto_path [concat [list $oguilib] $auto_path] +} +unset -nocomplain fd idx if {![catch {set _verbose $env(GITGUI_VERBOSE)}]} { unset _verbose diff --git a/git-parse-remote.sh b/git-parse-remote.sh index 437b0c3b1b..0506b12cb2 100755 --- a/git-parse-remote.sh +++ b/git-parse-remote.sh @@ -143,13 +143,13 @@ canon_refs_list_for_fetch () { fi case "$remote" in '' | HEAD ) remote=HEAD ;; - refs/heads/* | refs/tags/* | refs/remotes/*) ;; + refs/*) ;; heads/* | tags/* | remotes/* ) remote="refs/$remote" ;; *) remote="refs/heads/$remote" ;; esac case "$local" in '') local= ;; - refs/heads/* | refs/tags/* | refs/remotes/*) ;; + refs/*) ;; heads/* | tags/* | remotes/* ) local="refs/$local" ;; *) local="refs/heads/$local" ;; esac diff --git a/git-send-email.perl b/git-send-email.perl index 404095f258..eb876f88dd 100755 --- a/git-send-email.perl +++ b/git-send-email.perl @@ -212,7 +212,7 @@ my $aliasfiletype = $repo->config('sendemail.aliasfiletype'); my %parse_alias = ( # multiline formats can be supported in the future mutt => sub { my $fh = shift; while (<$fh>) { - if (/^alias\s+(\S+)\s+(.*)$/) { + if (/^\s*alias\s+(\S+)\s+(.*)$/) { my ($alias, $addr) = ($1, $2); $addr =~ s/#.*$//; # mutt allows # comments # commas delimit multiple addresses diff --git a/git-svn.perl b/git-svn.perl index 3c4f490b74..eda9969f50 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -80,6 +80,7 @@ my %icv; my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared, 'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags, 'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix, + 'minimize-url|m' => \$Git::SVN::_minimize_url, 'no-metadata' => sub { $icv{noMetadata} = 1 }, 'use-svm-props' => sub { $icv{useSvmProps} = 1 }, 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 }, @@ -393,7 +394,7 @@ sub cmd_dcommit { } else { my %ed_opts = ( r => $last_rev, log => get_commit_entry($d)->{log}, - ra => Git::SVN::Ra->new($url), + ra => Git::SVN::Ra->new($gs->full_url), tree_a => "$d~1", tree_b => $d, editor_cb => sub { @@ -484,6 +485,11 @@ sub cmd_multi_init { unless (defined $_trunk || defined $_branches || defined $_tags) { usage(1); } + + # there are currently some bugs that prevent multi-init/multi-fetch + # setups from working well without this. + $Git::SVN::_minimize_url = 1; + $_prefix = '' unless defined $_prefix; if (defined $url) { $url =~ s#/+$##; @@ -820,7 +826,7 @@ use strict; use warnings; use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent $_repack $_repack_flags $_use_svm_props $_head - $_use_svnsync_props $no_reuse_existing/; + $_use_svnsync_props $no_reuse_existing $_minimize_url/; use Carp qw/croak/; use File::Path qw/mkpath/; use File::Copy qw/copy/; @@ -1037,7 +1043,7 @@ sub init_remote_config { "[svn-remote \"$existing\"]\n"; } $self->{repo_id} = $existing; - } else { + } elsif ($_minimize_url) { my $min_url = Git::SVN::Ra->new($url)->minimize_url; $existing = find_existing_remote($min_url, $r); if ($existing) { @@ -1390,7 +1396,7 @@ sub traverse_ignore { } } foreach (sort keys %$dirent) { - next if $dirent->{$_}->kind != $SVN::Node::dir; + next if $dirent->{$_}->{kind} != $SVN::Node::dir; $self->traverse_ignore($fh, "$path/$_", $r); } } @@ -2840,8 +2846,10 @@ sub close_edit { my ($self) = @_; my ($p,$bat) = ($self->{pool}, $self->{bat}); foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) { + next if $_ eq ''; $self->close_directory($bat->{$_}, $p); } + $self->close_directory($bat->{''}, $p); $self->SUPER::close_edit($p); $p->clear; } @@ -2888,7 +2896,7 @@ my ($can_do_switch, %ignored_err, $RA); BEGIN { # enforce temporary pool usage for some simple functions my $e; - foreach (qw/get_latest_revnum get_uuid get_repos_root/) { + foreach (qw/rev_proplist get_latest_revnum get_uuid get_repos_root/) { $e .= "sub $_ { my \$self = shift; my \$pool = SVN::Pool->new; @@ -2897,36 +2905,13 @@ BEGIN { wantarray ? \@ret : \$ret[0]; }\n"; } - # get_dir needs $pool held in cache for dirents to work, - # check_path is cacheable and rev_proplist is close enough - # for our purposes. - foreach (qw/check_path get_dir rev_proplist/) { - $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ { - my \$self = shift; - my \$r = pop; - my \$k = join(\"\\0\", \@_); - if (my \$x = \$${_}_cache{\$r}->{\$k}) { - return wantarray ? \@\$x : \$x->[0]; - } - my \$pool = SVN::Pool->new; - my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool); - if (\$r != \$${_}_rev) { - \%${_}_cache = ( pool => [] ); - \$${_}_rev = \$r; - } - \$${_}_cache{\$r}->{\$k} = \\\@ret; - push \@{\$${_}_cache{pool}}, \$pool; - wantarray ? \@ret : \$ret[0]; }\n"; - } - $e .= "\n1;"; - eval $e or die $@; + eval "$e; 1;" or die $@; } sub new { my ($class, $url) = @_; $url =~ s!/+$!!; return $RA if ($RA && $RA->{url} eq $url); - $RA->{pool}->clear if $RA; SVN::_Core::svn_config_ensure($config_dir, undef); my ($baton, $callbacks) = SVN::Core::auth_open_helper([ @@ -2952,9 +2937,47 @@ sub new { $self->{svn_path} = $url; $self->{repos_root} = $self->get_repos_root; $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##; + $self->{cache} = { check_path => { r => 0, data => {} }, + get_dir => { r => 0, data => {} } }; $RA = bless $self, $class; } +sub check_path { + my ($self, $path, $r) = @_; + my $cache = $self->{cache}->{check_path}; + if ($r == $cache->{r} && exists $cache->{data}->{$path}) { + return $cache->{data}->{$path}; + } + my $pool = SVN::Pool->new; + my $t = $self->SUPER::check_path($path, $r, $pool); + $pool->clear; + if ($r != $cache->{r}) { + %{$cache->{data}} = (); + $cache->{r} = $r; + } + $cache->{data}->{$path} = $t; +} + +sub get_dir { + my ($self, $dir, $r) = @_; + my $cache = $self->{cache}->{get_dir}; + if ($r == $cache->{r}) { + if (my $x = $cache->{data}->{$dir}) { + return wantarray ? @$x : $x->[0]; + } + } + my $pool = SVN::Pool->new; + my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool); + my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d; + $pool->clear; + if ($r != $cache->{r}) { + %{$cache->{data}} = (); + $cache->{r} = $r; + } + $cache->{data}->{$dir} = [ \%dirents, $r, $props ]; + wantarray ? (\%dirents, $r, $props) : \%dirents; +} + sub DESTROY { # do not call the real DESTROY since we store ourselves in $RA } @@ -3169,7 +3192,7 @@ sub match_globs { return unless scalar @x == 3; my $dirents = $x[0]; foreach my $de (keys %$dirents) { - next if $dirents->{$de}->kind != $SVN::Node::dir; + next if $dirents->{$de}->{kind} != $SVN::Node::dir; my $p = $g->{path}->full_path($de); next if $exists->{$p}; next if (length $g->{path}->{right} && diff --git a/git.spec.in b/git.spec.in index 16148d4019..3a45eb8761 100644 --- a/git.spec.in +++ b/git.spec.in @@ -185,8 +185,13 @@ rm -rf $RPM_BUILD_ROOT %{_datadir}/git-core/ %doc README COPYING Documentation/*.txt %{!?_without_docs: %doc Documentation/*.html Documentation/howto} +%{!?_without_docs: %doc Documentation/technical} %changelog +* Tue May 13 2007 Quy Tonthat <qtonthat@gmail.com> +- Added lib files for git-gui +- Added Documentation/technical (As needed by Git Users Manual) + * Tue May 8 2007 Quy Tonthat <qtonthat@gmail.com> - Added howto files diff --git a/gitweb/gitweb.css b/gitweb/gitweb.css index b57c8beccb..9f0822fab3 100644 --- a/gitweb/gitweb.css +++ b/gitweb/gitweb.css @@ -1,5 +1,6 @@ body { font-family: sans-serif; + font-size: small; border: solid #d9d8d1; border-width: 1px; margin: 10px; @@ -483,3 +484,7 @@ span.atnight { span.match { color: #e00000; } + +div.binary { + font-style: italic; +} diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl index 21864c62a9..5c7011a37b 100755 --- a/gitweb/gitweb.perl +++ b/gitweb/gitweb.perl @@ -102,10 +102,13 @@ our %feature = ( # 'override' => allow-override (boolean), # 'default' => [ default options...] (array reference)} # - # if feature is overridable (it means that allow-override has true value, + # if feature is overridable (it means that allow-override has true value), # then feature-sub will be called with default options as parameters; # return value of feature-sub indicates if to enable specified feature # + # if there is no 'sub' key (no feature-sub), then feature cannot be + # overriden + # # use gitweb_check_feature(<feature>) to check if <feature> is enabled # Enable the 'blame' blob view, showing the last commit that modified @@ -138,10 +141,24 @@ our %feature = ( # Enable text search, which will list the commits which match author, # committer or commit text to a given string. Enabled by default. + # Project specific override is not supported. 'search' => { 'override' => 0, 'default' => [1]}, + # Enable grep search, which will list the files in currently selected + # tree containing the given string. Enabled by default. This can be + # potentially CPU-intensive, of course. + + # To enable system wide have in $GITWEB_CONFIG + # $feature{'grep'}{'default'} = [1]; + # To have project specific config enable override in $GITWEB_CONFIG + # $feature{'grep'}{'override'} = 1; + # and in project config gitweb.grep = 0|1; + 'grep' => { + 'override' => 0, + 'default' => [1]}, + # Enable the pickaxe search, which will list the commits that modified # a given string in a file. This can be practical and quite faster # alternative to 'blame', but still potentially CPU-intensive. @@ -241,6 +258,18 @@ sub gitweb_have_snapshot { return $have_snapshot; } +sub feature_grep { + my ($val) = git_get_project_config('grep', '--bool'); + + if ($val eq 'true') { + return (1); + } elsif ($val eq 'false') { + return (0); + } + + return ($_[0]); +} + sub feature_pickaxe { my ($val) = git_get_project_config('pickaxe', '--bool'); @@ -360,22 +389,23 @@ if (defined $page) { } } +our $searchtype = $cgi->param('st'); +if (defined $searchtype) { + if ($searchtype =~ m/[^a-z]/) { + die_error(undef, "Invalid searchtype parameter"); + } +} + our $searchtext = $cgi->param('s'); +our $search_regexp; if (defined $searchtext) { - if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) { + if ($searchtype ne 'grep' and $searchtype ne 'pickaxe' and $searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) { die_error(undef, "Invalid search parameter"); } if (length($searchtext) < 2) { die_error(undef, "At least two characters are required for search parameter"); } - $searchtext = quotemeta $searchtext; -} - -our $searchtype = $cgi->param('st'); -if (defined $searchtype) { - if ($searchtype =~ m/[^a-z]/) { - die_error(undef, "Invalid searchtype parameter"); - } + $search_regexp = quotemeta $searchtext; } # now read PATH_INFO and use it as alternative to parameters @@ -728,7 +758,9 @@ sub chop_str { sub age_class { my $age = shift; - if ($age < 60*60*2) { + if (!defined $age) { + return "noage"; + } elsif ($age < 60*60*2) { return "age0"; } elsif ($age < 60*60*24*2) { return "age1"; @@ -1060,6 +1092,11 @@ sub git_get_hash_by_path { my $line = <$fd>; close $fd or return undef; + if (!defined $line) { + # there is no tree or hash given by $path at $base + return undef; + } + #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c' $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t/; if (defined $type && $type ne $2) { @@ -1102,7 +1139,9 @@ sub git_get_project_description { open my $fd, "$projectroot/$path/description" or return undef; my $descr = <$fd>; close $fd; - chomp $descr; + if (defined $descr) { + chomp $descr; + } return $descr; } @@ -1253,7 +1292,8 @@ sub git_get_last_activity { 'refs/heads') or return; my $most_recent = <$fd>; close $fd or return; - if ($most_recent =~ / (\d+) [-+][01]\d\d\d$/) { + if (defined $most_recent && + $most_recent =~ / (\d+) [-+][01]\d\d\d$/) { my $timestamp = $1; my $age = time - $timestamp; return ($age, age_string($age)); @@ -1376,8 +1416,12 @@ sub parse_commit_text { pop @commit_lines; # Remove '\0' + if (! @commit_lines) { + return; + } + my $header = shift @commit_lines; - if (!($header =~ m/^[0-9a-fA-F]{40}/)) { + if ($header !~ m/^[0-9a-fA-F]{40}/) { return; } ($co{'id'}, my @parents) = split ' ', $header; @@ -1884,6 +1928,8 @@ EOF } print "\n"; } + print "</div>\n"; + my ($have_search) = gitweb_check_feature('search'); if ((defined $project) && ($have_search)) { if (!defined $searchtext) { @@ -1906,14 +1952,13 @@ EOF $cgi->hidden(-name => "a") . "\n" . $cgi->hidden(-name => "h") . "\n" . $cgi->popup_menu(-name => 'st', -default => 'commit', - -values => ['commit', 'author', 'committer', 'pickaxe']) . + -values => ['commit', 'grep', 'author', 'committer', 'pickaxe']) . $cgi->sup($cgi->a({-href => href(action=>"search_help")}, "?")) . " search:\n", $cgi->textfield(-name => "s", -value => $searchtext) . "\n" . "</div>" . $cgi->end_form() . "\n"; } - print "</div>\n"; } sub git_footer_html { @@ -2660,9 +2705,10 @@ sub git_patchset_body { # check if current patch belong to current raw line # and parse raw git-diff line if needed if (defined $diffinfo && + defined $from_id && defined $to_id && from_ids_eq($diffinfo->{'from_id'}, $from_id) && $diffinfo->{'to_id'} eq $to_id) { - # this is split patch + # this is continuation of a split patch print "<div class=\"patch cont\">\n"; } else { # advance raw git-diff output if needed @@ -2702,8 +2748,9 @@ sub git_patchset_body { delete $from{'href'}; } } + $to{'file'} = $diffinfo->{'to_file'} || $diffinfo->{'file'}; - if ($diffinfo->{'status'} ne "D") { # not deleted file + if ($diffinfo->{'to_id'} ne ('0' x 40)) { # file exists in result $to{'href'} = href(action=>"blob", hash_base=>$hash, hash=>$diffinfo->{'to_id'}, file_name=>$to{'file'}); @@ -2859,7 +2906,14 @@ sub git_patchset_body { } continue { print "</div>\n"; # class="patch" } - print "<div class=\"diff nodifferences\">No differences found</div>\n" if (!$patch_number); + + if ($patch_number == 0) { + if (@hash_parents > 1) { + print "<div class=\"diff nodifferences\">Trivial merge</div>\n"; + } else { + print "<div class=\"diff nodifferences\">No differences found</div>\n"; + } + } print "</div>\n"; # class="patchset" } @@ -2973,7 +3027,7 @@ sub git_project_list_body { esc_html($pr->{'descr'})) . "</td>\n" . "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n"; print "<td class=\"". age_class($pr->{'age'}) . "\">" . - $pr->{'age_string'} . "</td>\n" . + (defined $pr->{'age_string'} ? $pr->{'age_string'} : "No commits") . "</td>\n" . "<td class=\"link\">" . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"summary")}, "summary") . " | " . $cgi->a({-href => href(project=>$pr->{'path'}, action=>"shortlog")}, "shortlog") . " | " . @@ -3227,7 +3281,7 @@ sub git_search_grep_body { esc_html(chop_str($co{'title'}, 50)) . "<br/>"); my $comment = $co{'comment'}; foreach my $line (@$comment) { - if ($line =~ m/^(.*)($searchtext)(.*)$/i) { + if ($line =~ m/^(.*)($search_regexp)(.*)$/i) { my $lead = esc_html($1) || ""; $lead = chop_str($lead, 30, 10); my $match = esc_html($2) || ""; @@ -3325,7 +3379,7 @@ sub git_project_index { sub git_summary { my $descr = git_get_project_description($project) || "none"; my %co = parse_commit("HEAD"); - my %cd = parse_date($co{'committer_epoch'}, $co{'committer_tz'}); + my %cd = %co ? parse_date($co{'committer_epoch'}, $co{'committer_tz'}) : (); my $head = $co{'id'}; my $owner = git_get_project_owner($project); @@ -3348,8 +3402,11 @@ sub git_summary { print "<div class=\"title\"> </div>\n"; print "<table cellspacing=\"0\">\n" . "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" . - "<tr><td>owner</td><td>$owner</td></tr>\n" . - "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n"; + "<tr><td>owner</td><td>$owner</td></tr>\n"; + if (defined $cd{'rfc2822'}) { + print "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n"; + } + # use per project git URL list in $projectroot/$project/cloneurl # or make project git URL from git base URL and project name my $url_tag = "URL"; @@ -3372,11 +3429,13 @@ sub git_summary { # we need to request one more than 16 (0..15) to check if # those 16 are all - my @commitlist = parse_commits($head, 17); - git_print_header_div('shortlog'); - git_shortlog_body(\@commitlist, 0, 15, $refs, - $#commitlist <= 15 ? undef : - $cgi->a({-href => href(action=>"shortlog")}, "...")); + my @commitlist = $head ? parse_commits($head, 17) : (); + if (@commitlist) { + git_print_header_div('shortlog'); + git_shortlog_body(\@commitlist, 0, 15, $refs, + $#commitlist <= 15 ? undef : + $cgi->a({-href => href(action=>"shortlog")}, "...")); + } if (@taglist) { git_print_header_div('tags'); @@ -3408,6 +3467,11 @@ sub git_tag { git_header_html(); git_print_page_nav('','', $head,undef,$head); my %tag = parse_tag($hash); + + if (! %tag) { + die_error(undef, "Unknown tag object"); + } + git_print_header_div('commit', esc_html($tag{'name'}), $hash); print "<div class=\"title_text\">\n" . "<table cellspacing=\"0\">\n" . @@ -4587,6 +4651,12 @@ sub git_search { die_error('403 Permission denied', "Permission denied"); } } + if ($searchtype eq 'grep') { + my ($have_grep) = gitweb_check_feature('grep'); + if (!$have_grep) { + die_error('403 Permission denied', "Permission denied"); + } + } git_header_html(); @@ -4599,7 +4669,7 @@ sub git_search { } elsif ($searchtype eq 'committer') { $greptype = "--committer="; } - $greptype .= $searchtext; + $greptype .= $search_regexp; my @commitlist = parse_commits($hash, 101, (100 * $page), $greptype); my $paging_nav = ''; @@ -4648,8 +4718,10 @@ sub git_search { my $alternate = 1; $/ = "\n"; my $git_command = git_cmd_str(); + my $searchqtext = $searchtext; + $searchqtext =~ s/'/'\\''/; open my $fd, "-|", "$git_command rev-list $hash | " . - "$git_command diff-tree -r --stdin -S\'$searchtext\'"; + "$git_command diff-tree -r --stdin -S\'$searchqtext\'"; undef %co; my @files; while (my $line = <$fd>) { @@ -4703,6 +4775,73 @@ sub git_search { print "</table>\n"; } + + if ($searchtype eq 'grep') { + git_print_page_nav('','', $hash,$co{'tree'},$hash); + git_print_header_div('commit', esc_html($co{'title'}), $hash); + + print "<table cellspacing=\"0\">\n"; + my $alternate = 1; + my $matches = 0; + $/ = "\n"; + open my $fd, "-|", git_cmd(), 'grep', '-n', '-i', '-E', $searchtext, $co{'tree'}; + my $lastfile = ''; + while (my $line = <$fd>) { + chomp $line; + my ($file, $lno, $ltext, $binary); + last if ($matches++ > 1000); + if ($line =~ /^Binary file (.+) matches$/) { + $file = $1; + $binary = 1; + } else { + (undef, $file, $lno, $ltext) = split(/:/, $line, 4); + } + if ($file ne $lastfile) { + $lastfile and print "</td></tr>\n"; + if ($alternate++) { + print "<tr class=\"dark\">\n"; + } else { + print "<tr class=\"light\">\n"; + } + print "<td class=\"list\">". + $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'}, + file_name=>"$file"), + -class => "list"}, esc_path($file)); + print "</td><td>\n"; + $lastfile = $file; + } + if ($binary) { + print "<div class=\"binary\">Binary file</div>\n"; + } else { + $ltext = untabify($ltext); + if ($ltext =~ m/^(.*)($searchtext)(.*)$/i) { + $ltext = esc_html($1, -nbsp=>1); + $ltext .= '<span class="match">'; + $ltext .= esc_html($2, -nbsp=>1); + $ltext .= '</span>'; + $ltext .= esc_html($3, -nbsp=>1); + } else { + $ltext = esc_html($ltext, -nbsp=>1); + } + print "<div class=\"pre\">" . + $cgi->a({-href => href(action=>"blob", hash=>$co{'hash'}, + file_name=>"$file").'#l'.$lno, + -class => "linenr"}, sprintf('%4i', $lno)) + . ' ' . $ltext . "</div>\n"; + } + } + if ($lastfile) { + print "</td></tr>\n"; + if ($matches > 1000) { + print "<div class=\"diff nodifferences\">Too many matches, listing trimmed</div>\n"; + } + } else { + print "<div class=\"diff nodifferences\">No matches found</div>\n"; + } + close $fd; + + print "</table>\n"; + } git_footer_html(); } @@ -4713,6 +4852,20 @@ sub git_search_help { <dl> <dt><b>commit</b></dt> <dd>The commit messages and authorship information will be scanned for the given string.</dd> +EOT + my ($have_grep) = gitweb_check_feature('grep'); + if ($have_grep) { + print <<EOT; +<dt><b>grep</b></dt> +<dd>All files in the currently selected tree (HEAD unless you are explicitly browsing + a different one) are searched for the given +<a href="http://en.wikipedia.org/wiki/Regular_expression">regular expression</a> +(POSIX extended) and the matches are listed. On large +trees, this search can take a while and put some strain on the server, so please use it with +some consideration.</dd> +EOT + } + print <<EOT; <dt><b>author</b></dt> <dd>Name and e-mail of the change author and date of birth of the patch will be scanned for the given string.</dd> <dt><b>committer</b></dt> @@ -4887,7 +5040,8 @@ XML # get list of changed files open my $fd, "-|", git_cmd(), "diff-tree", '-r', @diff_opts, - $co{'parent'}, $co{'id'}, "--", (defined $file_name ? $file_name : ()) + $co{'parent'} || "--root", + $co{'id'}, "--", (defined $file_name ? $file_name : ()) or next; my @difftree = map { chomp; $_ } <$fd>; close $fd diff --git a/imap-send.c b/imap-send.c index 84df2fabb7..4283a4acda 100644 --- a/imap-send.c +++ b/imap-send.c @@ -224,7 +224,7 @@ socket_perror( const char *func, Socket_t *sock, int ret ) static int socket_read( Socket_t *sock, char *buf, int len ) { - int n = xread( sock->fd, buf, len ); + ssize_t n = xread( sock->fd, buf, len ); if (n <= 0) { socket_perror( "read", sock, n ); close( sock->fd ); diff --git a/index-pack.c b/index-pack.c index b9da19f55b..58c4a9c41d 100644 --- a/index-pack.c +++ b/index-pack.c @@ -82,7 +82,7 @@ static void *fill(int min) die("cannot fill %d bytes", min); flush(); do { - int ret = xread(input_fd, input_buffer + input_len, + ssize_t ret = xread(input_fd, input_buffer + input_len, sizeof(input_buffer) - input_len); if (ret <= 0) { if (!ret) diff --git a/pack-write.c b/pack-write.c index de72f44dc8..ae2e481e55 100644 --- a/pack-write.c +++ b/pack-write.c @@ -25,7 +25,7 @@ void fixup_pack_header_footer(int pack_fd, buf = xmalloc(buf_sz); for (;;) { - size_t n = xread(pack_fd, buf, buf_sz); + ssize_t n = xread(pack_fd, buf, buf_sz); if (!n) break; if (n < 0) diff --git a/pkt-line.c b/pkt-line.c index b4cb7e2756..b60526869a 100644 --- a/pkt-line.c +++ b/pkt-line.c @@ -65,10 +65,10 @@ void packet_write(int fd, const char *fmt, ...) static void safe_read(int fd, void *buffer, unsigned size) { - int n = 0; + size_t n = 0; while (n < size) { - int ret = xread(fd, (char *) buffer + n, size - n); + ssize_t ret = xread(fd, (char *) buffer + n, size - n); if (ret < 0) die("read error (%s)", strerror(errno)); if (!ret) diff --git a/sha1_file.c b/sha1_file.c index 32244d704e..be991ed22a 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -2276,7 +2276,7 @@ int read_pipe(int fd, char** return_buf, unsigned long* return_size) { char* buf = *return_buf; unsigned long size = *return_size; - int iret; + ssize_t iret; unsigned long off = 0; do { diff --git a/ssh-upload.c b/ssh-upload.c index 2f04572787..498d41e19b 100644 --- a/ssh-upload.c +++ b/ssh-upload.c @@ -86,7 +86,7 @@ static int serve_ref(int fd_in, int fd_out) static void service(int fd_in, int fd_out) { char type; - int retval; + ssize_t retval; do { retval = xread(fd_in, &type, 1); if (retval < 1) { diff --git a/symlinks.c b/symlinks.c new file mode 100644 index 0000000000..be9ace6c04 --- /dev/null +++ b/symlinks.c @@ -0,0 +1,48 @@ +#include "cache.h" + +int has_symlink_leading_path(const char *name, char *last_symlink) +{ + char path[PATH_MAX]; + const char *sp, *ep; + char *dp; + + sp = name; + dp = path; + + if (last_symlink && *last_symlink) { + size_t last_len = strlen(last_symlink); + size_t len = strlen(name); + if (last_len < len && + !strncmp(name, last_symlink, last_len) && + name[last_len] == '/') + return 1; + *last_symlink = '\0'; + } + + while (1) { + size_t len; + struct stat st; + + ep = strchr(sp, '/'); + if (!ep) + break; + len = ep - sp; + if (PATH_MAX <= dp + len - path + 2) + return 0; /* new name is longer than that??? */ + memcpy(dp, sp, len); + dp[len] = 0; + + if (lstat(path, &st)) + return 0; + if (S_ISLNK(st.st_mode)) { + if (last_symlink) + strcpy(last_symlink, path); + return 1; + } + + dp[len++] = '/'; + dp = dp + len; + sp = ep + 1; + } + return 0; +} diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh index bab9ecc34e..6c26fd829d 100755 --- a/t/t0021-conversion.sh +++ b/t/t0021-conversion.sh @@ -21,7 +21,7 @@ test_expect_success setup ' { echo a b c d e f g h i j k l m echo n o p q r s t u v w x y z - echo '\''$ident$'\'' + echo '\''$Id$'\'' } >test && cat test >test.t && cat test >test.o && @@ -31,7 +31,7 @@ test_expect_success setup ' git checkout -- test test.t test.i ' -script='s/^\$ident: \([0-9a-f]*\) \$/\1/p' +script='s/^\$Id: \([0-9a-f]*\) \$/\1/p' test_expect_success check ' diff --git a/t/t1300-repo-config.sh b/t/t1300-repo-config.sh index 78c2e0864f..a1d777ca81 100755 --- a/t/t1300-repo-config.sh +++ b/t/t1300-repo-config.sh @@ -407,6 +407,25 @@ EOF test_expect_success "section was removed properly" \ "git diff -u expect .git/config" +rm .git/config + +cat > expect << EOF +[gitcvs] + enabled = true + dbname = %Ggitcvs2.%a.%m.sqlite +[gitcvs "ext"] + dbname = %Ggitcvs1.%a.%m.sqlite +EOF + +test_expect_success 'section ending' ' + + git-config gitcvs.enabled true && + git-config gitcvs.ext.dbname %Ggitcvs1.%a.%m.sqlite && + git-config gitcvs.dbname %Ggitcvs2.%a.%m.sqlite && + cmp .git/config expect + +' + test_expect_success numbers ' git-config kilo.gram 1k && diff --git a/t/t2200-add-update.sh b/t/t2200-add-update.sh new file mode 100755 index 0000000000..83005e70d0 --- /dev/null +++ b/t/t2200-add-update.sh @@ -0,0 +1,38 @@ +#!/bin/sh + +test_description='git-add -u with path limiting + +This test creates a working tree state with three files: + + top (previously committed, modified) + dir/sub (previously committed, modified) + dir/other (untracked) + +and issues a git-add -u with path limiting on "dir" to add +only the updates to dir/sub.' + +. ./test-lib.sh + +test_expect_success 'setup' ' +echo initial >top && +mkdir dir && +echo initial >dir/sub && +git-add dir/sub top && +git-commit -m initial && +echo changed >top && +echo changed >dir/sub && +echo other >dir/other +' + +test_expect_success 'update' 'git-add -u dir' + +test_expect_success 'update touched correct path' \ + 'test "`git-diff-files --name-status dir/sub`" = ""' + +test_expect_success 'update did not touch other tracked files' \ + 'test "`git-diff-files --name-status top`" = "M top"' + +test_expect_success 'update did not touch untracked files' \ + 'test "`git-diff-files --name-status dir/other`" = ""' + +test_done diff --git a/t/t4122-apply-symlink-inside.sh b/t/t4122-apply-symlink-inside.sh new file mode 100755 index 0000000000..3ddfe64b02 --- /dev/null +++ b/t/t4122-apply-symlink-inside.sh @@ -0,0 +1,56 @@ +#!/bin/sh + +test_description='apply to deeper directory without getting fooled with symlink' +. ./test-lib.sh + +lecho () { + for l_ + do + echo "$l_" + done +} + +test_expect_success setup ' + + mkdir -p arch/i386/boot arch/x86_64 && + lecho 1 2 3 4 5 >arch/i386/boot/Makefile && + ln -s ../i386/boot arch/x86_64/boot && + git add . && + test_tick && + git commit -m initial && + git branch test && + + rm arch/x86_64/boot && + mkdir arch/x86_64/boot && + lecho 2 3 4 5 6 >arch/x86_64/boot/Makefile && + git add . && + test_tick && + git commit -a -m second && + + git format-patch --binary -1 --stdout >test.patch + +' + +test_expect_success apply ' + + git checkout test && + git diff --exit-code test && + git diff --exit-code --cached test && + git apply --index test.patch + +' + +test_expect_success 'check result' ' + + git diff --exit-code master && + git diff --exit-code --cached master && + test_tick && + git commit -m replay && + T1=$(git rev-parse "master^{tree}") && + T2=$(git rev-parse "HEAD^{tree}") && + test "z$T1" = "z$T2" + +' + +test_done + diff --git a/t/t9100-git-svn-basic.sh b/t/t9100-git-svn-basic.sh index eb628fe075..70c3669ee8 100755 --- a/t/t9100-git-svn-basic.sh +++ b/t/t9100-git-svn-basic.sh @@ -229,7 +229,7 @@ test_expect_failure 'exit if init-ing a would clobber a URL' " test_expect_success \ 'init allows us to connect to another directory in the same repo' " - git-svn init -i bar $svnrepo/bar && + git-svn init --minimize-url -i bar $svnrepo/bar && git config --get svn-remote.svn.fetch \ '^bar:refs/remotes/bar$' && git config --get svn-remote.svn.fetch \ diff --git a/t/t9104-git-svn-follow-parent.sh b/t/t9104-git-svn-follow-parent.sh index bd4f366e86..35aa45cb9a 100755 --- a/t/t9104-git-svn-follow-parent.sh +++ b/t/t9104-git-svn-follow-parent.sh @@ -28,7 +28,7 @@ test_expect_success 'initialize repo' " " test_expect_success 'init and fetch a moved directory' " - git-svn init -i thunk $svnrepo/thunk && + git-svn init --minimize-url -i thunk $svnrepo/thunk && git-svn fetch -i thunk && test \"\`git-rev-parse --verify refs/remotes/thunk@2\`\" \ = \"\`git-rev-parse --verify refs/remotes/thunk~1\`\" && @@ -68,7 +68,8 @@ test_expect_success 'follow larger parent' " echo hi > import/trunk/thunk/bump/thud/file && svn import -m 'import a larger parent' import $svnrepo/larger-parent && svn cp -m 'hi' $svnrepo/larger-parent $svnrepo/another-larger && - git-svn init -i larger $svnrepo/another-larger/trunk/thunk/bump/thud && + git-svn init --minimize-url -i larger \ + $svnrepo/another-larger/trunk/thunk/bump/thud && git-svn fetch -i larger && git-rev-parse --verify refs/remotes/larger && git-rev-parse --verify \ @@ -90,14 +91,14 @@ test_expect_success 'follow higher-level parent' " cd .. svn mkdir -m 'new glob at top level' $svnrepo/glob && svn mv -m 'move blob down a level' $svnrepo/blob $svnrepo/glob/blob && - git-svn init -i blob $svnrepo/glob/blob && + git-svn init --minimize-url -i blob $svnrepo/glob/blob && git-svn fetch -i blob " test_expect_success 'follow deleted directory' " svn mv -m 'bye!' $svnrepo/glob/blob/hi $svnrepo/glob/blob/bye && svn rm -m 'remove glob' $svnrepo/glob && - git-svn init -i glob $svnrepo/glob && + git-svn init --minimize-url -i glob $svnrepo/glob && git-svn fetch -i glob && test \"\`git cat-file blob refs/remotes/glob:blob/bye\`\" = hi && test \"\`git ls-tree refs/remotes/glob | wc -l \`\" -eq 1 @@ -127,7 +128,7 @@ test_expect_success 'follow-parent avoids deleting relevant info' " poke native/t/c.t && svn commit -m 'reorg test' && cd .. && - git-svn init -i r9270-t \ + git-svn init --minimize-url -i r9270-t \ $svnrepo/r9270/trunk/subversion/bindings/swig/perl/native/t && git-svn fetch -i r9270-t && test \`git rev-list r9270-t | wc -l\` -eq 2 && @@ -137,7 +138,7 @@ test_expect_success 'follow-parent avoids deleting relevant info' " test_expect_success "track initial change if it was only made to parent" " svn cp -m 'wheee!' $svnrepo/r9270/trunk $svnrepo/r9270/drunk && - git-svn init -i r9270-d \ + git-svn init --minimize-url -i r9270-d \ $svnrepo/r9270/drunk/subversion/bindings/swig/perl/native/t && git-svn fetch -i r9270-d && test \`git rev-list r9270-d | wc -l\` -eq 3 && diff --git a/t/t9105-git-svn-commit-diff.sh b/t/t9105-git-svn-commit-diff.sh index c668dd1270..318e172ef5 100755 --- a/t/t9105-git-svn-commit-diff.sh +++ b/t/t9105-git-svn-commit-diff.sh @@ -33,7 +33,7 @@ test_expect_success 'test the commit-diff command' " test_expect_success 'commit-diff to a sub-directory (with git-svn config)' " svn import -m 'sub-directory' import $svnrepo/subdir && - git-svn init $svnrepo/subdir && + git-svn init --minimize-url $svnrepo/subdir && git-svn fetch && git-svn commit-diff -r3 '$prev' '$head' && svn cat $svnrepo/subdir/readme > readme.2 && diff --git a/t/t9110-git-svn-use-svm-props.sh b/t/t9110-git-svn-use-svm-props.sh index 9db0d8fd8d..59e17f2663 100755 --- a/t/t9110-git-svn-use-svm-props.sh +++ b/t/t9110-git-svn-use-svm-props.sh @@ -9,9 +9,10 @@ test_description='git-svn useSvmProps test' test_expect_success 'load svm repo' " svnadmin load -q $rawsvnrepo < ../t9110/svm.dump && - git-svn init -R arr -i bar $svnrepo/mirror/arr && - git-svn init -R argh -i dir $svnrepo/mirror/argh && - git-svn init -R argh -i e $svnrepo/mirror/argh/a/b/c/d/e && + git-svn init --minimize-url -R arr -i bar $svnrepo/mirror/arr && + git-svn init --minimize-url -R argh -i dir $svnrepo/mirror/argh && + git-svn init --minimize-url -R argh -i e \ + $svnrepo/mirror/argh/a/b/c/d/e && git-config svn.useSvmProps true && git-svn fetch --all " diff --git a/t/t9111-git-svn-use-svnsync-props.sh b/t/t9111-git-svn-use-svnsync-props.sh index 483d7f8159..e52321471a 100755 --- a/t/t9111-git-svn-use-svnsync-props.sh +++ b/t/t9111-git-svn-use-svnsync-props.sh @@ -9,9 +9,9 @@ test_description='git-svn useSvnsyncProps test' test_expect_success 'load svnsync repo' " svnadmin load -q $rawsvnrepo < ../t9111/svnsync.dump && - git-svn init -R arr -i bar $svnrepo/bar && - git-svn init -R argh -i dir $svnrepo/dir && - git-svn init -R argh -i e $svnrepo/dir/a/b/c/d/e && + git-svn init --minimize-url -R arr -i bar $svnrepo/bar && + git-svn init --minimize-url -R argh -i dir $svnrepo/dir && + git-svn init --minimize-url -R argh -i e $svnrepo/dir/a/b/c/d/e && git-config svn.useSvnsyncProps true && git-svn fetch --all " diff --git a/t/t9400-git-cvsserver-server.sh b/t/t9400-git-cvsserver-server.sh index f137b308f3..d406a8824a 100755 --- a/t/t9400-git-cvsserver-server.sh +++ b/t/t9400-git-cvsserver-server.sh @@ -26,8 +26,9 @@ perl -e 'use DBI; use DBD::SQLite' >/dev/null 2>&1 || { unset GIT_DIR GIT_CONFIG WORKDIR=$(pwd) SERVERDIR=$(pwd)/gitcvs.git +git_config="$SERVERDIR/config" CVSROOT=":fork:$SERVERDIR" -CVSWORK=$(pwd)/cvswork +CVSWORK="$(pwd)/cvswork" CVS_SERVER=git-cvsserver export CVSROOT CVS_SERVER @@ -43,7 +44,7 @@ echo >empty && # note that cvs doesn't accept absolute pathnames # as argument to co -d test_expect_success 'basic checkout' \ - 'cvs -Q co -d cvswork master && + 'GIT_CONFIG="$git_config" cvs -Q co -d cvswork master && test "$(echo $(grep -v ^D cvswork/CVS/Entries|cut -d/ -f2,3,5))" = "empty/1.1/"' test_expect_success 'cvs update (create new file)' \ @@ -52,7 +53,7 @@ test_expect_success 'cvs update (create new file)' \ git commit -q -m "Add testfile1" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update && + GIT_CONFIG="$git_config" cvs -Q update && test "$(echo $(grep testfile1 CVS/Entries|cut -d/ -f2,3,5))" = "testfile1/1.1/" && diff -q testfile1 ../testfile1' @@ -63,7 +64,7 @@ test_expect_success 'cvs update (update existing file)' \ git commit -q -m "Append to testfile1" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update && + GIT_CONFIG="$git_config" cvs -Q update && test "$(echo $(grep testfile1 CVS/Entries|cut -d/ -f2,3,5))" = "testfile1/1.2/" && diff -q testfile1 ../testfile1' @@ -76,7 +77,7 @@ test_expect_failure "cvs update w/o -d doesn't create subdir (TODO)" \ git commit -q -m "Single Subdirectory" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update && + GIT_CONFIG="$git_config" cvs -Q update && test ! -d test' cd "$WORKDIR" @@ -89,7 +90,7 @@ test_expect_success 'cvs update (subdirectories)' \ git commit -q -m "deep sub directory structure" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update -d && + GIT_CONFIG="$git_config" cvs -Q update -d && (for dir in A A/B A/B/C A/D E; do filename="file_in_$(echo $dir|sed -e "s#/# #g")" && if test "$(echo $(grep -v ^D $dir/CVS/Entries|cut -d/ -f2,3,5))" = "$filename/1.1/" && @@ -107,7 +108,7 @@ test_expect_success 'cvs update (delete file)' \ git commit -q -m "Remove testfile1" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update && + GIT_CONFIG="$git_config" cvs -Q update && test -z "$(grep testfile1 CVS/Entries)" && test ! -f testfile1' @@ -118,7 +119,7 @@ test_expect_success 'cvs update (re-add deleted file)' \ git commit -q -m "Re-Add testfile1" && git push gitcvs.git >/dev/null && cd cvswork && - cvs -Q update && + GIT_CONFIG="$git_config" cvs -Q update && test "$(echo $(grep testfile1 CVS/Entries|cut -d/ -f2,3,5))" = "testfile1/1.4/" && diff -q testfile1 ../testfile1' diff --git a/tree-walk.h b/tree-walk.h index 43458cf8ce..ee747aba0b 100644 --- a/tree-walk.h +++ b/tree-walk.h @@ -27,7 +27,6 @@ static inline int tree_entry_len(const char *name, const unsigned char *sha1) void update_tree_entry(struct tree_desc *); void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size); -const unsigned char *tree_entry_extract(struct tree_desc *, const char **, unsigned int *); /* Helper function that does both of the above and returns true for success */ int tree_entry(struct tree_desc *, struct name_entry *); diff --git a/unpack-trees.c b/unpack-trees.c index 675a9998dc..906ce69ea6 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -264,10 +264,12 @@ static int unpack_trees_rec(struct tree_entry_list **posns, int len, * directories, in case this unlink is the removal of the * last entry in the directory -- empty directories are removed. */ -static void unlink_entry(char *name) +static void unlink_entry(char *name, char *last_symlink) { char *cp, *prev; + if (has_symlink_leading_path(name, last_symlink)) + return; if (unlink(name)) return; prev = NULL; @@ -291,11 +293,12 @@ static void unlink_entry(char *name) static struct checkout state; static void check_updates(struct cache_entry **src, int nr, - struct unpack_trees_options *o) + struct unpack_trees_options *o) { unsigned short mask = htons(CE_UPDATE); unsigned cnt = 0, total = 0; struct progress progress; + char last_symlink[PATH_MAX]; if (o->update && o->verbose_update) { for (total = cnt = 0; cnt < nr; cnt++) { @@ -309,6 +312,7 @@ static void check_updates(struct cache_entry **src, int nr, cnt = 0; } + *last_symlink = '\0'; while (nr--) { struct cache_entry *ce = *src++; @@ -317,13 +321,15 @@ static void check_updates(struct cache_entry **src, int nr, display_progress(&progress, ++cnt); if (!ce->ce_mode) { if (o->update) - unlink_entry(ce->name); + unlink_entry(ce->name, last_symlink); continue; } if (ce->ce_flags & mask) { ce->ce_flags &= ~mask; - if (o->update) + if (o->update) { checkout_entry(ce, &state, NULL); + *last_symlink = '\0'; + } } } if (total) |