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Merge branch 'jc/dirwalk-n-cache-tree' into jc/cache-tree

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* jc/dirwalk-n-cache-tree: (212 commits)
  builtin-rm: squelch compiler warnings.
  Add builtin "git rm" command
  Move pathspec matching from builtin-add.c into dir.c
  Prevent bogus paths from being added to the index.
  builtin-add: fix unmatched pathspec warnings.
  Remove old "git-add.sh" remnants
  builtin-add: warn on unmatched pathspecs
  Do "git add" as a builtin
  Clean up git-ls-file directory walking library interface
  libify git-ls-files directory traversal
  Add a conversion tool to migrate remote information into the config
  fetch, pull: ask config for remote information
  Fix build procedure for builtin-init-db
  read-tree -m -u: do not overwrite or remove untracked working tree files.
  apply --cached: do not check newly added file in the working tree
  Implement a --dry-run option to git-quiltimport
  Implement git-quiltimport
  Revert "builtin-grep: workaround for non GNU grep."
  builtin-grep: workaround for non GNU grep.
  builtin-grep: workaround for non GNU grep.
  ...
This commit is contained in:
Junio C Hamano 2006-05-28 22:34:34 -07:00
commit 7d55561986
148 changed files with 7957 additions and 2582 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/Makefile
View File

@ -79,7 +79,7 @@ clean:
asciidoc -b xhtml11 -d manpage -f asciidoc.conf $<
%.1 %.7 : %.xml
xmlto man $<
xmlto -m callouts.xsl man $<
%.xml : %.txt
asciidoc -b docbook -d manpage -f asciidoc.conf $<

4
Documentation/SubmittingPatches
View File

@ -266,8 +266,8 @@ This recipe appears to work with the current [*1*] Thunderbird from Suse.
The following Thunderbird extensions are needed:
AboutConfig 0.5
http://aboutconfig.mozdev.org/
External Editor 0.5.4
http://extensionroom.mozdev.org/more-info/exteditor
External Editor 0.7.2
http://globs.org/articles.php?lng=en&pg=8
1) Prepare the patch as a text file using your method of choice.

16
Documentation/callouts.xsl Normal file
View File

@ -0,0 +1,16 @@
<!-- callout.xsl: converts asciidoc callouts to man page format -->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:template match="co">
<xsl:value-of select="concat('\fB(',substring-after(@id,'-'),')\fR')"/>
</xsl:template>
<xsl:template match="calloutlist">
<xsl:text>.sp&#10;</xsl:text>
<xsl:apply-templates/>
<xsl:text>&#10;</xsl:text>
</xsl:template>
<xsl:template match="callout">
<xsl:value-of select="concat('\fB',substring-after(@arearefs,'-'),'. \fR')"/>
<xsl:apply-templates/>
<xsl:text>.br&#10;</xsl:text>
</xsl:template>
</xsl:stylesheet>

8
Documentation/config.txt
View File

@ -64,9 +64,11 @@ core.ignoreStat::
slow, such as Microsoft Windows. See gitlink:git-update-index[1].
False by default.
core.onlyUseSymrefs::
Always use the "symref" format instead of symbolic links for HEAD
and other symbolic reference files. True by default.
core.preferSymlinkRefs::
Instead of the default "symref" format for HEAD
and other symbolic reference files, use symbolic links.
This is sometimes needed to work with old scripts that
expect HEAD to be a symbolic link.
core.repositoryFormatVersion::
Internal variable identifying the repository format and layout

2
Documentation/core-tutorial.txt
View File

@ -971,7 +971,7 @@ $ git show-branch --topo-order master mybranch
The first two lines indicate that it is showing the two branches
and the first line of the commit log message from their
top-of-the-tree commits, you are currently on `master` branch
(notice the asterisk `*` character), and the first column for
(notice the asterisk `\*` character), and the first column for
the later output lines is used to show commits contained in the
`master` branch, and the second column for the `mybranch`
branch. Three commits are shown along with their log messages.

4
Documentation/diff-options.txt
View File

@ -10,6 +10,10 @@
--stat::
Generate a diffstat instead of a patch.
--summary::
Output a condensed summary of extended header information
such as creations, renames and mode changes.
--patch-with-stat::
Generate patch and prepend its diffstat.

45
Documentation/everyday.txt
View File

@ -61,7 +61,8 @@ $ git prune
$ git count-objects <2>
$ git repack <3>
$ git prune <4>
------------
+
<1> running without "--full" is usually cheap and assures the
repository health reasonably well.
<2> check how many loose objects there are and how much
@ -69,17 +70,16 @@ diskspace is wasted by not repacking.
<3> without "-a" repacks incrementally. repacking every 4-5MB
of loose objects accumulation may be a good rule of thumb.
<4> after repack, prune removes the duplicate loose objects.
------------
Repack a small project into single pack.::
+
------------
$ git repack -a -d <1>
$ git prune
------------
+
<1> pack all the objects reachable from the refs into one pack
and remove unneeded other packs
------------
Individual Developer (Standalone)[[Individual Developer (Standalone)]]
@ -129,10 +129,10 @@ $ git-init-db
$ git add . <1>
$ git commit -m 'import of frotz source tree.'
$ git tag v2.43 <2>
------------
+
<1> add everything under the current directory.
<2> make a lightweight, unannotated tag.
------------
Create a topic branch and develop.::
+
@ -153,7 +153,8 @@ $ git checkout master <9>
$ git pull . alsa-audio <10>
$ git log --since='3 days ago' <11>
$ git log v2.43.. curses/ <12>
------------
+
<1> create a new topic branch.
<2> revert your botched changes in "curses/ux_audio_oss.c".
<3> you need to tell git if you added a new file; removal and
@ -170,7 +171,6 @@ you originally wrote.
combined and include --max-count=10 (show 10 commits), --until='2005-12-10'.
<12> view only the changes that touch what's in curses/
directory, since v2.43 tag.
------------
Individual Developer (Participant)[[Individual Developer (Participant)]]
@ -208,7 +208,8 @@ $ git pull git://git.kernel.org/pub/.../jgarzik/libata-dev.git ALL <5>
$ git reset --hard ORIG_HEAD <6>
$ git prune <7>
$ git fetch --tags <8>
------------
+
<1> repeat as needed.
<2> extract patches from your branch for e-mail submission.
<3> "pull" fetches from "origin" by default and merges into the
@ -221,7 +222,6 @@ area we are interested in.
<7> garbage collect leftover objects from reverted pull.
<8> from time to time, obtain official tags from the "origin"
and store them under .git/refs/tags/.
------------
Push into another repository.::
@ -239,7 +239,8 @@ satellite$ git push origin <4>
mothership$ cd frotz
mothership$ git checkout master
mothership$ git pull . satellite <5>
------------
+
<1> mothership machine has a frotz repository under your home
directory; clone from it to start a repository on the satellite
machine.
@ -252,7 +253,6 @@ to local "origin" branch.
mothership machine. You could use this as a back-up method.
<5> on mothership machine, merge the work done on the satellite
machine into the master branch.
------------
Branch off of a specific tag.::
+
@ -262,12 +262,12 @@ $ edit/compile/test; git commit -a
$ git checkout master
$ git format-patch -k -m --stdout v2.6.14..private2.6.14 |
git am -3 -k <2>
------------
+
<1> create a private branch based on a well known (but somewhat behind)
tag.
<2> forward port all changes in private2.6.14 branch to master branch
without a formal "merging".
------------
Integrator[[Integrator]]
@ -317,7 +317,8 @@ $ git tag -s -m 'GIT 0.99.9x' v0.99.9x <10>
$ git fetch ko && git show-branch master maint 'tags/ko-*' <11>
$ git push ko <12>
$ git push ko v0.99.9x <13>
------------
+
<1> see what I was in the middle of doing, if any.
<2> see what topic branches I have and think about how ready
they are.
@ -346,7 +347,6 @@ In the output from "git show-branch", "master" should have
everything "ko-master" has.
<12> push out the bleeding edge.
<13> push the tag out, too.
------------
Repository Administration[[Repository Administration]]
@ -367,7 +367,6 @@ example of managing a shared central repository.
Examples
~~~~~~~~
Run git-daemon to serve /pub/scm from inetd.::
+
------------
@ -388,13 +387,13 @@ cindy:x:1002:1002::/home/cindy:/usr/bin/git-shell
david:x:1003:1003::/home/david:/usr/bin/git-shell
$ grep git /etc/shells <2>
/usr/bin/git-shell
------------
+
<1> log-in shell is set to /usr/bin/git-shell, which does not
allow anything but "git push" and "git pull". The users should
get an ssh access to the machine.
<2> in many distributions /etc/shells needs to list what is used
as the login shell.
------------
CVS-style shared repository.::
+
@ -419,7 +418,8 @@ $ cat info/allowed-users <4>
refs/heads/master alice\|cindy
refs/heads/doc-update bob
refs/tags/v[0-9]* david
------------
+
<1> place the developers into the same git group.
<2> and make the shared repository writable by the group.
<3> use update-hook example by Carl from Documentation/howto/
@ -427,7 +427,6 @@ for branch policy control.
<4> alice and cindy can push into master, only bob can push into doc-update.
david is the release manager and is the only person who can
create and push version tags.
------------
HTTP server to support dumb protocol transfer.::
+
@ -435,7 +434,7 @@ HTTP server to support dumb protocol transfer.::
dev$ git update-server-info <1>
dev$ ftp user@isp.example.com <2>
ftp> cp -r .git /home/user/myproject.git
------------
+
<1> make sure your info/refs and objects/info/packs are up-to-date
<2> upload to public HTTP server hosted by your ISP.
------------

2
Documentation/git-add.txt
View File

@ -26,7 +26,7 @@ OPTIONS
-v::
Be verbose.
--::
\--::
This option can be used to separate command-line options from
the list of files, (useful when filenames might be mistaken
for command-line options).

57
Documentation/git-branch.txt
View File

@ -3,22 +3,27 @@ git-branch(1)
NAME
----
git-branch - Create a new branch, or remove an old one
git-branch - List, create, or delete branches.
SYNOPSIS
--------
[verse]
'git-branch' [[-f] <branchname> [<start-point>]]
'git-branch' (-d | -D) <branchname>
'git-branch' [-r]
'git-branch' [-f] <branchname> [<start-point>]
'git-branch' (-d | -D) <branchname>...
DESCRIPTION
-----------
If no argument is provided, show available branches and mark current
branch with star. Otherwise, create a new branch of name <branchname>.
If a starting point is also specified, that will be where the branch is
created, otherwise it will be created at the current HEAD.
With no arguments given (or just `-r`) a list of available branches
will be shown, the current branch will be highlighted with an asterisk.
With a `-d` or `-D` option, `<branchname>` will be deleted.
In its second form, a new branch named <branchname> will be created.
It will start out with a head equal to the one given as <start-point>.
If no <start-point> is given, the branch will be created with a head
equal to that of the currently checked out branch.
With a `-d` or `-D` option, `<branchname>` will be deleted. You may
specify more than one branch for deletion.
OPTIONS
@ -30,40 +35,56 @@ OPTIONS
Delete a branch irrespective of its index status.
-f::
Force a reset of <branchname> to <start-point> (or current head).
Force the creation of a new branch even if it means deleting
a branch that already exists with the same name.
-r::
List only the "remote" branches.
<branchname>::
The name of the branch to create or delete.
<start-point>::
Where to create the branch; defaults to HEAD. This
option has no meaning with -d and -D.
The new branch will be created with a HEAD equal to this. It may
be given as a branch name, a commit-id, or a tag. If this option
is omitted, the current branch is assumed.
Examples
~~~~~~~~
--------
Start development off of a known tag::
+
------------
$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
$ cd my2.6
$ git branch my2.6.14 v2.6.14 <1>
$ git branch my2.6.14 v2.6.14 <1>
$ git checkout my2.6.14
<1> These two steps are the same as "checkout -b my2.6.14 v2.6.14".
------------
+
<1> This step and the next one could be combined into a single step with
"checkout -b my2.6.14 v2.6.14".
Delete unneeded branch::
+
------------
$ git clone git://git.kernel.org/.../git.git my.git
$ cd my.git
$ git branch -D todo <1>
$ git branch -D todo <1>
------------
+
<1> delete todo branch even if the "master" branch does not have all
commits from todo branch.
------------
Notes
-----
If you are creating a branch that you want to immediately checkout, it's
easier to use the git checkout command with its `-b` option to create
a branch and check it out with a single command.
Author
------

2
Documentation/git-checkout-index.txt
View File

@ -63,7 +63,7 @@ OPTIONS
Only meaningful with `--stdin`; paths are separated with
NUL character instead of LF.
--::
\--::
Do not interpret any more arguments as options.
The order of the flags used to matter, but not anymore.

20
Documentation/git-checkout.txt
View File

@ -66,19 +66,19 @@ the `Makefile` to two revisions back, deletes hello.c by
mistake, and gets it back from the index.
+
------------
$ git checkout master <1>
$ git checkout master~2 Makefile <2>
$ git checkout master <1>
$ git checkout master~2 Makefile <2>
$ rm -f hello.c
$ git checkout hello.c <3>
<1> switch branch
<2> take out a file out of other commit
<3> or "git checkout -- hello.c", as in the next example.
$ git checkout hello.c <3>
------------
+
If you have an unfortunate branch that is named `hello.c`, the
last step above would be confused as an instruction to switch to
that branch. You should instead write:
<1> switch branch
<2> take out a file out of other commit
<3> restore hello.c from HEAD of current branch
+
If you have an unfortunate branch that is named `hello.c`, this
step would be confused as an instruction to switch to that branch.
You should instead write:
+
------------
$ git checkout -- hello.c

19
Documentation/git-cherry.txt
View File

@ -11,11 +11,20 @@ SYNOPSIS
DESCRIPTION
-----------
Each commit between the fork-point and <head> is examined, and compared against
the change each commit between the fork-point and <upstream> introduces.
Commits already included in upstream are prefixed with '-' (meaning "drop from
my local pull"), while commits missing from upstream are prefixed with '+'
(meaning "add to the updated upstream").
The changeset (or "diff") of each commit between the fork-point and <head>
is compared against each commit between the fork-point and <upstream>.
Every commit with a changeset that doesn't exist in the other branch
has its id (sha1) reported, prefixed by a symbol. Those existing only
in the <upstream> branch are prefixed with a minus (-) sign, and those
that only exist in the <head> branch are prefixed with a plus (+) symbol.
Because git-cherry compares the changeset rather than the commit id
(sha1), you can use git-cherry to find out if a commit you made locally
has been applied <upstream> under a different commit id. For example,
this will happen if you're feeding patches <upstream> via email rather
than pushing or pulling commits directly.
OPTIONS
-------

5
Documentation/git-clean.txt
View File

@ -8,7 +8,7 @@ git-clean - Remove untracked files from the working tree
SYNOPSIS
--------
[verse]
'git-clean' [-d] [-n] [-q] [-x | -X]
'git-clean' [-d] [-n] [-q] [-x | -X] [--] <paths>...
DESCRIPTION
-----------
@ -16,6 +16,9 @@ Removes files unknown to git. This allows to clean the working tree
from files that are not under version control. If the '-x' option is
specified, ignored files are also removed, allowing to remove all
build products.
When optional `<paths>...` arguments are given, the paths
affected are further limited to those that match them.
OPTIONS
-------

2
Documentation/git-clone.txt
View File

@ -101,7 +101,7 @@ OPTIONS
is not allowed.
Examples
~~~~~~~~
--------
Clone from upstream::
+

2
Documentation/git-commit.txt
View File

@ -106,7 +106,7 @@ but can be used to amend a merge commit.
index and the latest commit does not match on the
specified paths to avoid confusion.
--::
\--::
Do not interpret any more arguments as options.
<file>...::

12
Documentation/git-count-objects.txt
View File

@ -7,13 +7,23 @@ git-count-objects - Reports on unpacked objects
SYNOPSIS
--------
'git-count-objects'
'git-count-objects' [-v]
DESCRIPTION
-----------
This counts the number of unpacked object files and disk space consumed by
them, to help you decide when it is a good time to repack.
OPTIONS
-------
-v::
In addition to the number of loose objects and disk
space consumed, it reports the number of in-pack
objects, and number of objects that can be removed by
running `git-prune-packed`.
Author
------
Written by Junio C Hamano <junkio@cox.net>

9
Documentation/git-cvsexportcommit.txt
View File

@ -8,7 +8,7 @@ git-cvsexportcommit - Export a commit to a CVS checkout
SYNOPSIS
--------
'git-cvsexportcommmit' [-h] [-v] [-c] [-p] [PARENTCOMMIT] COMMITID
'git-cvsexportcommmit' [-h] [-v] [-c] [-p] [-f] [-m msgprefix] [PARENTCOMMIT] COMMITID
DESCRIPTION
@ -39,6 +39,13 @@ OPTIONS
Be pedantic (paranoid) when applying patches. Invokes patch with
--fuzz=0
-f::
Force the merge even if the files are not up to date.
-m::
Prepend the commit message with the provided prefix.
Useful for patch series and the like.
-v::
Verbose.

2
Documentation/git-diff-tree.txt
View File

@ -92,7 +92,7 @@ separated with a single space are given.
Furthermore, it lists only files which were modified
from all parents.
-cc::
--cc::
This flag changes the way a merge commit patch is displayed,
in a similar way to the '-c' option. It implies the '-c'
and '-p' options and further compresses the patch output

38
Documentation/git-diff.txt
View File

@ -46,40 +46,41 @@ EXAMPLES
Various ways to check your working tree::
+
------------
$ git diff <1>
$ git diff --cached <2>
$ git diff HEAD <3>
$ git diff <1>
$ git diff --cached <2>
$ git diff HEAD <3>
------------
+
<1> changes in the working tree since your last git-update-index.
<2> changes between the index and your last commit; what you
would be committing if you run "git commit" without "-a" option.
<3> changes in the working tree since your last commit; what you
would be committing if you run "git commit -a"
------------
Comparing with arbitrary commits::
+
------------
$ git diff test <1>
$ git diff HEAD -- ./test <2>
$ git diff HEAD^ HEAD <3>
$ git diff test <1>
$ git diff HEAD -- ./test <2>
$ git diff HEAD^ HEAD <3>
------------
+
<1> instead of using the tip of the current branch, compare with the
tip of "test" branch.
<2> instead of comparing with the tip of "test" branch, compare with
the tip of the current branch, but limit the comparison to the
file "test".
<3> compare the version before the last commit and the last commit.
------------
Limiting the diff output::
+
------------
$ git diff --diff-filter=MRC <1>
$ git diff --name-status -r <2>
$ git diff arch/i386 include/asm-i386 <3>
$ git diff --diff-filter=MRC <1>
$ git diff --name-status -r <2>
$ git diff arch/i386 include/asm-i386 <3>
------------
+
<1> show only modification, rename and copy, but not addition
nor deletion.
<2> show only names and the nature of change, but not actual
@ -88,18 +89,17 @@ which in turn also disables recursive behaviour, so without -r
you would only see the directory name if there is a change in a
file in a subdirectory.
<3> limit diff output to named subtrees.
------------
Munging the diff output::
+
------------
$ git diff --find-copies-harder -B -C <1>
$ git diff -R <2>
$ git diff --find-copies-harder -B -C <1>
$ git diff -R <2>
------------
+
<1> spend extra cycles to find renames, copies and complete
rewrites (very expensive).
<2> output diff in reverse.
------------
Author

85
Documentation/git-grep.txt
View File

@ -8,43 +8,82 @@ git-grep - Print lines matching a pattern
SYNOPSIS
--------
'git-grep' [<option>...] [-e] <pattern> [--] [<path>...]
[verse]
'git-grep' [--cached]
[-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp]
[-v | --invert-match]
[-E | --extended-regexp] [-G | --basic-regexp] [-F | --fixed-strings]
[-n] [-l | --files-with-matches] [-L | --files-without-match]
[-c | --count]
[-A <post-context>] [-B <pre-context>] [-C <context>]
[-f <file>] [-e <pattern>]
[<tree>...]
[--] [<path>...]
DESCRIPTION
-----------
Searches list of files `git-ls-files` produces for lines
containing a match to the given pattern.
Look for specified patterns in the working tree files, blobs
registered in the index file, or given tree objects.
OPTIONS
-------
--cached::
Instead of searching in the working tree files, check
the blobs registerd in the index file.
-a | --text::
Process binary files as if they were text.
-i | --ignore-case::
Ignore case differences between the patterns and the
files.
-w | --word-regexp::
Match the pattern only at word boundary (either begin at the
beginning of a line, or preceded by a non-word character; end at
the end of a line or followed by a non-word character).
-v | --invert-match::
Select non-matching lines.
-E | --extended-regexp | -G | --basic-regexp::
Use POSIX extended/basic regexp for patterns. Default
is to use basic regexp.
-n::
Prefix the line number to matching lines.
-l | --files-with-matches | -L | --files-without-match::
Instead of showing every matched line, show only the
names of files that contain (or do not contain) matches.
-c | --count::
Instead of showing every matched line, show the number of
lines that match.
-[ABC] <context>::
Show `context` trailing (`A` -- after), or leading (`B`
-- before), or both (`C` -- context) lines, and place a
line containing `--` between continguous groups of
matches.
-f <file>::
Read patterns from <file>, one per line.
`<tree>...`::
Search blobs in the trees for specified patterns.
`--`::
Signals the end of options; the rest of the parameters
are <path> limiters.
<option>...::
Either an option to pass to `grep` or `git-ls-files`.
+
The following are the specific `git-ls-files` options
that may be given: `-o`, `--cached`, `--deleted`, `--others`,
`--killed`, `--ignored`, `--modified`, `--exclude=\*`,
`--exclude-from=\*`, and `--exclude-per-directory=\*`.
+
All other options will be passed to `grep`.
<pattern>::
The pattern to look for. The first non option is taken
as the pattern; if your pattern begins with a dash, use
`-e <pattern>`.
<path>...::
Optional paths to limit the set of files to be searched;
passed to `git-ls-files`.
Author
------
Written by Linus Torvalds <torvalds@osdl.org>
Originally written by Linus Torvalds <torvalds@osdl.org>, later
revamped by Junio C Hamano.
Documentation
--------------

4
Documentation/git-imap-send.txt
View File

@ -29,6 +29,7 @@ CONFIGURATION
git-imap-send requires the following values in the repository
configuration file (shown with examples):
..........................
[imap]
Folder = "INBOX.Drafts"
@ -38,8 +39,9 @@ configuration file (shown with examples):
[imap]
Host = imap.server.com
User = bob
Password = pwd
Pass = pwd
Port = 143
..........................
BUGS

8
Documentation/git-init-db.txt
View File

@ -60,12 +60,12 @@ Start a new git repository for an existing code base::
+
----------------
$ cd /path/to/my/codebase
$ git-init-db <1>
$ git-add . <2>
$ git-init-db <1>
$ git-add . <2>
----------------
+
<1> prepare /path/to/my/codebase/.git directory
<2> add all existing file to the index
----------------
Author

9
Documentation/git-log.txt
View File

@ -14,13 +14,12 @@ DESCRIPTION
-----------
Shows the commit logs.
The command takes options applicable to the gitlink::git-rev-list[1]
The command takes options applicable to the gitlink:git-rev-list[1]
command to control what is shown and how, and options applicable to
the gitlink::git-diff-tree[1] commands to control how the change
the gitlink:git-diff-tree[1] commands to control how the change
each commit introduces are shown.
This manual page describes only the most frequently used
options.
This manual page describes only the most frequently used options.
OPTIONS
@ -52,7 +51,7 @@ git log v2.6.12.. include/scsi drivers/scsi::
Show all commits since version 'v2.6.12' that changed any file
in the include/scsi or drivers/scsi subdirectories
git log --since="2 weeks ago" -- gitk::
git log --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

2
Documentation/git-ls-files.txt
View File

@ -106,7 +106,7 @@ OPTIONS
lines, show only handful hexdigits prefix.
Non default number of digits can be specified with --abbrev=<n>.
--::
\--::
Do not interpret any more arguments as options.
<file>::

18
Documentation/git-merge-base.txt
View File

@ -8,16 +8,26 @@ git-merge-base - Finds as good a common ancestor as possible for a merge
SYNOPSIS
--------
'git-merge-base' <commit> <commit>
'git-merge-base' [--all] <commit> <commit>
DESCRIPTION
-----------
"git-merge-base" finds as good a common ancestor as possible. Given a
selection of equally good common ancestors it should not be relied on
to decide in any particular way.
"git-merge-base" finds as good a common ancestor as possible between
the two commits. That is, given two commits A and B 'git-merge-base A
B' will output a commit which is reachable from both A and B through
the parent relationship.
Given a selection of equally good common ancestors it should not be
relied on to decide in any particular way.
The "git-merge-base" algorithm is still in flux - use the source...
OPTIONS
-------
--all::
Output all common ancestors for the two commits instead of
just one.
Author
------

4
Documentation/git-merge-index.txt
View File

@ -8,7 +8,7 @@ git-merge-index - Runs a merge for files needing merging
SYNOPSIS
--------
'git-merge-index' [-o] [-q] <merge-program> (-a | -- | <file>\*)
'git-merge-index' [-o] [-q] <merge-program> (-a | \-- | <file>\*)
DESCRIPTION
-----------
@ -19,7 +19,7 @@ files are passed as arguments 5, 6 and 7.
OPTIONS
-------
--::
\--::
Do not interpret any more arguments as options.
-a::

1
Documentation/git-name-rev.txt
View File

@ -41,6 +41,7 @@ Enter git-name-rev:
------------
% git name-rev 33db5f4d9027a10e477ccf054b2c1ab94f74c85a
33db5f4d9027a10e477ccf054b2c1ab94f74c85a tags/v0.99^0~940
------------
Now you are wiser, because you know that it happened 940 revisions before v0.99.

2
Documentation/git-prune.txt
View File

@ -28,7 +28,7 @@ OPTIONS
Do not remove anything; just report what it would
remove.
--::
\--::
Do not interpret any more arguments as options.
<head>...::

61
Documentation/git-quiltimport.txt Normal file
View File

@ -0,0 +1,61 @@
git-quiltimport(1)
================
NAME
----
git-quiltimport - Applies a quilt patchset onto the current branch
SYNOPSIS
--------
[verse]
'git-quiltimport' [--dry-run] [--author <author>] [--patches <dir>]
DESCRIPTION
-----------
Applies a quilt patchset onto the current git branch, preserving
the patch boundaries, patch order, and patch descriptions present
in the quilt patchset.
For each patch the code attempts to extract the author from the
patch description. If that fails it falls back to the author
specified with --author. If the --author flag was not given
the patch description is displayed and the user is asked to
interactively enter the author of the patch.
If a subject is not found in the patch description the patch name is
preserved as the 1 line subject in the git description.
OPTIONS
-------
--dry-run::
Walk through the patches in the series and warn
if we cannot find all of the necessary information to commit
a patch. At the time of this writing only missing author
information is warned about.
--author Author Name <Author Email>::
The author name and email address to use when no author
information can be found in the patch description.
--patches <dir>::
The directory to find the quilt patches and the
quilt series file.
The default for the patch directory is patches
or the value of the $QUILT_PATCHES environment
variable.
Author
------
Written by Eric Biederman <ebiederm@lnxi.com>
Documentation
--------------
Documentation by Eric Biederman <ebiederm@lnxi.com>
GIT
---
Part of the gitlink:git[7] suite

75
Documentation/git-rebase.txt
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@ -3,38 +3,53 @@ git-rebase(1)
NAME
----
git-rebase - Rebase local commits to new upstream head
git-rebase - Rebase local commits to a new head
SYNOPSIS
--------
'git-rebase' [--onto <newbase>] <upstream> [<branch>]
'git-rebase' --continue | --skip | --abort
DESCRIPTION
-----------
git-rebase applies to <upstream> (or optionally to <newbase>) commits
from <branch> that do not appear in <upstream>. When <branch> is not
specified it defaults to the current branch (HEAD).
git-rebase replaces <branch> with a new branch of the same name. When
the --onto option is provided the new branch starts out with a HEAD equal
to <newbase>, otherwise it is equal to <upstream>. It then attempts to
create a new commit for each commit from the original <branch> that does
not exist in the <upstream> branch.
When git-rebase is complete, <branch> will be updated to point to the
newly created line of commit objects, so the previous line will not be
accessible unless there are other references to it already.
It is possible that a merge failure will prevent this process from being
completely automatic. You will have to resolve any such merge failure
and run `git rebase --continue`. Another option is to bypass the commit
that caused the merge failure with `git rebase --skip`. To restore the
original <branch> and remove the .dotest working files, use the command
`git rebase --abort` instead.
Note that if <branch> is not specified on the command line, the currently
checked out branch is used.
Assume the following history exists and the current branch is "topic":
------------
A---B---C topic
/
D---E---F---G master
------------
From this point, the result of either of the following commands:
git-rebase master
git-rebase master topic
would be:
------------
A'--B'--C' topic
/
D---E---F---G master
------------
While, starting from the same point, the result of either of the following
commands:
@ -44,21 +59,33 @@ commands:
would be:
------------
A'--B'--C' topic
/
D---E---F---G master
------------
In case of conflict, git-rebase will stop at the first problematic commit
and leave conflict markers in the tree. After resolving the conflict manually
and updating the index with the desired resolution, you can continue the
rebasing process with
and leave conflict markers in the tree. You can use git diff to locate
the markers (<<<<<<) and make edits to resolve the conflict. For each
file you edit, you need to tell git that the conflict has been resolved,
typically this would be done with
git update-index <filename>
After resolving the conflict manually and updating the index with the
desired resolution, you can continue the rebasing process with
git rebase --continue
git am --resolved --3way
Alternatively, you can undo the git-rebase with
git reset --hard ORIG_HEAD
rm -r .dotest
git rebase --abort
OPTIONS
-------
@ -73,6 +100,28 @@ OPTIONS
<branch>::
Working branch; defaults to HEAD.
--continue::
Restart the rebasing process after having resolved a merge conflict.
--abort::
Restore the original branch and abort the rebase operation.
NOTES
-----
When you rebase a branch, you are changing its history in a way that
will cause problems for anyone who already has a copy of the branch
in their repository and tries to pull updates from you. You should
understand the implications of using 'git rebase' on a repository that
you share.
When the git rebase command is run, it will first execute a "pre-rebase"
hook if one exists. You can use this hook to do sanity checks and
reject the rebase if it isn't appropriate. Please see the template
pre-rebase hook script for an example.
You must be in the top directory of your project to start (or continue)
a rebase. Upon completion, <branch> will be the current branch.
Author
------
Written by Junio C Hamano <junkio@cox.net>

1
Documentation/git-repack.txt
View File

@ -38,6 +38,7 @@ OPTIONS
-d::
After packing, if the newly created packs make some
existing packs redundant, remove the redundant packs.
Also runs gitlink:git-prune-packed[1].
-l::
Pass the `--local` option to `git pack-objects`, see

24
Documentation/git-repo-config.txt
View File

@ -15,6 +15,7 @@ SYNOPSIS
'git-repo-config' [type] --get-all name [value_regex]
'git-repo-config' [type] --unset name [value_regex]
'git-repo-config' [type] --unset-all name [value_regex]
'git-repo-config' -l | --list
DESCRIPTION
-----------
@ -22,10 +23,11 @@ You can query/set/replace/unset options with this command. The name is
actually the section and the key separated by a dot, and the value will be
escaped.
If you want to set/unset an option which can occur on multiple lines, you
should provide a POSIX regex for the value. If you want to handle the lines
*not* matching the regex, just prepend a single exclamation mark in front
(see EXAMPLES).
If you want to set/unset an option which can occur on multiple
lines, a POSIX regexp `value_regex` needs to be given. Only the
existing values that match the regexp are updated or unset. If
you want to handle the lines that do *not* match the regex, just
prepend a single exclamation mark in front (see EXAMPLES).
The type specifier can be either '--int' or '--bool', which will make
'git-repo-config' ensure that the variable(s) are of the given type and
@ -33,10 +35,10 @@ convert the value to the canonical form (simple decimal number for int,
a "true" or "false" string for bool). If no type specifier is passed,
no checks or transformations are performed on the value.
This command will fail if
This command will fail if:
. .git/config is invalid,
. .git/config can not be written to,
. The .git/config file is invalid,
. Can not write to .git/config,
. no section was provided,
. the section or key is invalid,
. you try to unset an option which does not exist, or
@ -48,7 +50,7 @@ OPTIONS
--replace-all::
Default behaviour is to replace at most one line. This replaces
all lines matching the key (and optionally the value_regex)
all lines matching the key (and optionally the value_regex).
--get::
Get the value for a given key (optionally filtered by a regex
@ -58,12 +60,18 @@ OPTIONS
Like get, but does not fail if the number of values for the key
is not exactly one.
--get-regexp::
Like --get-all, but interprets the name as a regular expression.
--unset::
Remove the line matching the key from .git/config.
--unset-all::
Remove all matching lines from .git/config.
-l, --list::
List all variables set in .git/config.
EXAMPLE
-------

74
Documentation/git-reset.txt
View File

@ -43,16 +43,17 @@ OPTIONS
Commit to make the current HEAD.
Examples
~~~~~~~~
--------
Undo a commit and redo::
+
------------
$ git commit ...
$ git reset --soft HEAD^ <1>
$ edit <2>
$ git commit -a -c ORIG_HEAD <3>
$ git reset --soft HEAD^ <1>
$ edit <2>
$ git commit -a -c ORIG_HEAD <3>
------------
+
<1> This is most often done when you remembered what you
just committed is incomplete, or you misspelled your commit
message, or both. Leaves working tree as it was before "reset".
@ -60,43 +61,43 @@ message, or both. Leaves working tree as it was before "reset".
<3> "reset" copies the old head to .git/ORIG_HEAD; redo the
commit by starting with its log message. If you do not need to
edit the message further, you can give -C option instead.
------------
Undo commits permanently::
+
------------
$ git commit ...
$ git reset --hard HEAD~3 <1>
$ git reset --hard HEAD~3 <1>
------------
+
<1> The last three commits (HEAD, HEAD^, and HEAD~2) were bad
and you do not want to ever see them again. Do *not* do this if
you have already given these commits to somebody else.
------------
Undo a commit, making it a topic branch::
+
------------
$ git branch topic/wip <1>
$ git reset --hard HEAD~3 <2>
$ git checkout topic/wip <3>
$ git branch topic/wip <1>
$ git reset --hard HEAD~3 <2>
$ git checkout topic/wip <3>
------------
+
<1> You have made some commits, but realize they were premature
to be in the "master" branch. You want to continue polishing
them in a topic branch, so create "topic/wip" branch off of the
current HEAD.
<2> Rewind the master branch to get rid of those three commits.
<3> Switch to "topic/wip" branch and keep working.
------------
Undo update-index::
+
------------
$ edit <1>
$ edit <1>
$ git-update-index frotz.c filfre.c
$ mailx <2>
$ git reset <3>
$ git pull git://info.example.com/ nitfol <4>
$ mailx <2>
$ git reset <3>
$ git pull git://info.example.com/ nitfol <4>
------------
+
<1> you are happily working on something, and find the changes
in these files are in good order. You do not want to see them
when you run "git diff", because you plan to work on other files
@ -109,12 +110,11 @@ index changes for these two files. Your changes in working tree
remain there.
<4> then you can pull and merge, leaving frotz.c and filfre.c
changes still in the working tree.
------------
Undo a merge or pull::
+
------------
$ git pull <1>
$ git pull <1>
Trying really trivial in-index merge...
fatal: Merge requires file-level merging
Nope.
@ -122,20 +122,19 @@ Nope.
Auto-merging nitfol
CONFLICT (content): Merge conflict in nitfol
Automatic merge failed/prevented; fix up by hand
$ git reset --hard <2>
$ git reset --hard <2>
$ git pull . topic/branch <3>
Updating from 41223... to 13134...
Fast forward
$ git reset --hard ORIG_HEAD <4>
------------
+
<1> try to update from the upstream resulted in a lot of
conflicts; you were not ready to spend a lot of time merging
right now, so you decide to do that later.
<2> "pull" has not made merge commit, so "git reset --hard"
which is a synonym for "git reset --hard HEAD" clears the mess
from the index file and the working tree.
$ git pull . topic/branch <3>
Updating from 41223... to 13134...
Fast forward
$ git reset --hard ORIG_HEAD <4>
<3> merge a topic branch into the current branch, which resulted
in a fast forward.
<4> but you decided that the topic branch is not ready for public
@ -143,7 +142,6 @@ consumption yet. "pull" or "merge" always leaves the original
tip of the current branch in ORIG_HEAD, so resetting hard to it
brings your index file and the working tree back to that state,
and resets the tip of the branch to that commit.
------------
Interrupted workflow::
+
@ -155,21 +153,21 @@ need to get to the other branch for a quick bugfix.
------------
$ git checkout feature ;# you were working in "feature" branch and
$ work work work ;# got interrupted
$ git commit -a -m 'snapshot WIP' <1>
$ git commit -a -m 'snapshot WIP' <1>
$ git checkout master
$ fix fix fix
$ git commit ;# commit with real log
$ git checkout feature
$ git reset --soft HEAD^ ;# go back to WIP state <2>
$ git reset <3>
$ git reset --soft HEAD^ ;# go back to WIP state <2>
$ git reset <3>
------------
+
<1> This commit will get blown away so a throw-away log message is OK.
<2> This removes the 'WIP' commit from the commit history, and sets
your working tree to the state just before you made that snapshot.
<3> After <2>, the index file still has all the WIP changes you
committed in <1>. This sets it to the last commit you were
basing the WIP changes on.
------------
<3> At this point the index file still has all the WIP changes you
committed as 'snapshot WIP'. This updates the index to show your
WIP files as uncommitted.
Author
------

7
Documentation/git-rev-list.txt
View File

@ -68,9 +68,10 @@ OPTIONS
--bisect::
Limit output to the one commit object which is roughly halfway
between the included and excluded commits. Thus, if 'git-rev-list
--bisect foo ^bar ^baz' outputs 'midpoint', the output
of 'git-rev-list foo ^midpoint' and 'git-rev-list midpoint
^bar ^baz' would be of roughly the same length. Finding the change
--bisect foo {caret}bar {caret}baz' outputs 'midpoint', the output
of 'git-rev-list foo {caret}midpoint' and 'git-rev-list midpoint
{caret}bar {caret}baz' would be of roughly the same length.
Finding the change
which introduces a regression is thus reduced to a binary search:
repeatedly generate and test new 'midpoint's until the commit chain
is of length one.

9
Documentation/git-rev-parse.txt
View File

@ -67,6 +67,15 @@ OPTIONS
--all::
Show all refs found in `$GIT_DIR/refs`.
--branches::
Show branch refs found in `$GIT_DIR/refs/heads`.
--tags::
Show tag refs found in `$GIT_DIR/refs/tags`.
--remotes::
Show tag refs found in `$GIT_DIR/refs/remotes`.
--show-prefix::
When the command is invoked from a subdirectory, show the
path of the current directory relative to the top-level

2
Documentation/git-rm.txt
View File

@ -32,7 +32,7 @@ OPTIONS
-v::
Be verbose.
--::
\--::
This option can be used to separate command-line options from
the list of files, (useful when filenames might be mistaken
for command-line options).

13
Documentation/git-unpack-objects.txt
View File

@ -13,9 +13,16 @@ SYNOPSIS
DESCRIPTION
-----------
Reads a packed archive (.pack) from the standard input, and
expands the objects contained in the pack into "one-file
one-object" format in $GIT_OBJECT_DIRECTORY.
Read a packed archive (.pack) from the standard input, expanding
the objects contained within and writing them into the repository in
"loose" (one object per file) format.
Objects that already exist in the repository will *not* be unpacked
from the pack-file. Therefore, nothing will be unpacked if you use
this command on a pack-file that exists within the target repository.
Please see the `git-repack` documentation for options to generate
new packs and replace existing ones.
OPTIONS
-------

47
Documentation/git-update-index.txt
View File

@ -10,12 +10,12 @@ SYNOPSIS
--------
[verse]
'git-update-index'
[--add] [--remove | --force-remove] [--replace]
[--refresh [-q] [--unmerged] [--ignore-missing]]
[--add] [--remove | --force-remove] [--replace]
[--refresh] [-q] [--unmerged] [--ignore-missing]
[--cacheinfo <mode> <object> <file>]\*
[--chmod=(+|-)x]
[--assume-unchanged | --no-assume-unchanged]
[--really-refresh]
[--really-refresh] [--unresolve] [--again]
[--info-only] [--index-info]
[-z] [--stdin]
[--verbose]
@ -80,6 +80,14 @@ OPTIONS
filesystem that has very slow lstat(2) system call
(e.g. cifs).
--again::
Runs `git-update-index` itself on the paths whose index
entries are different from those from the `HEAD` commit.
--unresolve::
Restores the 'unmerged' or 'needs updating' state of a
file during a merge if it was cleared by accident.
--info-only::
Do not create objects in the object database for all
<file> arguments that follow this flag; just insert
@ -109,7 +117,7 @@ OPTIONS
Only meaningful with `--stdin`; paths are separated with
NUL character instead of LF.
--::
\--::
Do not interpret any more arguments as options.
<file>::
@ -247,34 +255,33 @@ To update and refresh only the files already checked out:
$ git-checkout-index -n -f -a && git-update-index --ignore-missing --refresh
----------------
On an inefficient filesystem with `core.ignorestat` set:
On an inefficient filesystem with `core.ignorestat` set::
+
------------
$ git update-index --really-refresh <1>
$ git update-index --no-assume-unchanged foo.c <2>
$ git diff --name-only <3>
$ git update-index --really-refresh <1>
$ git update-index --no-assume-unchanged foo.c <2>
$ git diff --name-only <3>
$ edit foo.c
$ git diff --name-only <4>
$ git diff --name-only <4>
M foo.c
$ git update-index foo.c <5>
$ git diff --name-only <6>
$ git update-index foo.c <5>
$ git diff --name-only <6>
$ edit foo.c
$ git diff --name-only <7>
$ git update-index --no-assume-unchanged foo.c <8>
$ git diff --name-only <9>
$ git diff --name-only <7>
$ git update-index --no-assume-unchanged foo.c <8>
$ git diff --name-only <9>
M foo.c
<1> forces lstat(2) to set "assume unchanged" bits for paths
that match index.
------------
+
<1> forces lstat(2) to set "assume unchanged" bits for paths that match index.
<2> mark the path to be edited.
<3> this does lstat(2) and finds index matches the path.
<4> this does lstat(2) and finds index does not match the path.
<4> this does lstat(2) and finds index does *not* match the path.
<5> registering the new version to index sets "assume unchanged" bit.
<6> and it is assumed unchanged.
<7> even after you edit it.
<8> you can tell about the change after the fact.
<9> now it checks with lstat(2) and finds it has been changed.
------------
Configuration

3
Documentation/git-var.txt
View File

@ -19,7 +19,8 @@ OPTIONS
-l::
Cause the logical variables to be listed. In addition, all the
variables of the git configuration file .git/config are listed
as well.
as well. (However, the configuration variables listing functionality
is deprecated in favor of `git-repo-config -l`.)
EXAMPLE
--------

2
Documentation/git-verify-pack.txt
View File

@ -25,7 +25,7 @@ OPTIONS
-v::
After verifying the pack, show list of objects contained
in the pack.
--::
\--::
Do not interpret any more arguments as options.
OUTPUT FORMAT

2
Documentation/git-whatchanged.txt
View File

@ -58,7 +58,7 @@ git-whatchanged -p v2.6.12.. include/scsi drivers/scsi::
Show as patches the commits since version 'v2.6.12' that changed
any file in the include/scsi or drivers/scsi subdirectories
git-whatchanged --since="2 weeks ago" -- gitk::
git-whatchanged --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

2
Documentation/gitk.txt
View File

@ -31,7 +31,7 @@ gitk v2.6.12.. include/scsi drivers/scsi::
Show as the changes since version 'v2.6.12' that changed any
file in the include/scsi or drivers/scsi subdirectories
gitk --since="2 weeks ago" -- gitk::
gitk --since="2 weeks ago" \-- gitk::
Show the changes during the last two weeks to the file 'gitk'.
The "--" is necessary to avoid confusion with the *branch* named

445
Documentation/glossary.txt
View File

@ -1,39 +1,71 @@
object::
The unit of storage in git. It is uniquely identified by
the SHA1 of its contents. Consequently, an object can not
be changed.
alternate object database::
Via the alternates mechanism, a repository can inherit part of its
object database from another object database, which is called
"alternate".
object name::
The unique identifier of an object. The hash of the object's contents
using the Secure Hash Algorithm 1 and usually represented by the 40
character hexadecimal encoding of the hash of the object (possibly
followed by a white space).
SHA1::
Synonym for object name.
object identifier::
Synonym for object name.
hash::
In git's context, synonym to object name.
object database::
Stores a set of "objects", and an individual object is identified
by its object name. The objects usually live in `$GIT_DIR/objects/`.
bare repository::
A bare repository is normally an appropriately named
directory with a `.git` suffix that does not have a
locally checked-out copy of any of the files under revision
control. That is, all of the `git` administrative and
control files that would normally be present in the
hidden `.git` sub-directory are directly present in
the `repository.git` directory instead, and no other files
are present and checked out. Usually publishers of public
repositories make bare repositories available.
blob object::
Untyped object, e.g. the contents of a file.
tree object::
An object containing a list of file names and modes along with refs
to the associated blob and/or tree objects. A tree is equivalent
to a directory.
branch::
A non-cyclical graph of revisions, i.e. the complete history of
a particular revision, which is called the branch head. The
branch heads are stored in `$GIT_DIR/refs/heads/`.
tree::
Either a working tree, or a tree object together with the
dependent blob and tree objects (i.e. a stored representation
of a working tree).
cache::
Obsolete for: index.
chain::
A list of objects, where each object in the list contains a
reference to its successor (for example, the successor of a commit
could be one of its parents).
changeset::
BitKeeper/cvsps speak for "commit". Since git does not store
changes, but states, it really does not make sense to use
the term "changesets" with git.
checkout::
The action of updating the working tree to a revision which was
stored in the object database.
cherry-picking::
In SCM jargon, "cherry pick" means to choose a subset of
changes out of a series of changes (typically commits)
and record them 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 commit and to record it based
on the tip of the current branch as a new commit.
clean::
A working tree is clean, if it corresponds to the revision
referenced by the current head. Also see "dirty".
commit::
As a verb: The action of storing the current state of the index in the
object database. The result is a revision.
As a noun: Short hand for commit object.
commit object::
An object which contains the information about a particular
revision, such as parents, committer, author, date and the
tree object which corresponds to the top directory of the
stored revision.
core git::
Fundamental data structures and utilities of git. Exposes only
limited source code management tools.
DAG::
Directed acyclic graph. The commit objects form a directed acyclic
@ -41,6 +73,63 @@ DAG::
objects is acyclic (there is no chain which begins and ends with the
same object).
dircache::
You are *waaaaay* behind.
dirty::
A working tree is said to be dirty if it contains modifications
which have not been committed to the current branch.
directory::
The list you get with "ls" :-)
ent::
Favorite synonym to "tree-ish" by some total geeks. See
`http://en.wikipedia.org/wiki/Ent_(Middle-earth)` for an in-depth
explanation.
fast forward::
A fast-forward is a special type of merge where you have
a revision and you are "merging" another branch's changes
that happen to be a descendant of what you have.
In such these cases, you do not make a new merge commit but
instead just update to his revision. This will happen
frequently on a tracking branch of a remote repository.
fetch::
Fetching a branch means to get the branch's head ref from a
remote repository, to find out which objects are missing from
the local object database, and to get them, too.
file system::
Linus Torvalds originally designed git to be a user space file
system, i.e. the infrastructure to hold files and directories.
That ensured the efficiency and speed of git.
git archive::
Synonym for repository (for arch people).
hash::
In git's context, synonym to object name.
head::
The top of a branch. It contains a ref to the corresponding
commit object.
head ref::
A ref pointing to a head. Often, this is abbreviated to "head".
Head refs are stored in `$GIT_DIR/refs/heads/`.
hook::
During the normal execution of several git commands,
call-outs are made to optional scripts that allow
a developer to add functionality or checking.
Typically, the hooks allow for a command to be pre-verified
and potentially aborted, and allow for a post-notification
after the operation is done.
The hook scripts are found in the `$GIT_DIR/hooks/` directory,
and are enabled by simply making them executable.
index::
A collection of files with stat information, whose contents are
stored as objects. The index is a stored version of your working
@ -53,92 +142,167 @@ index entry::
yet finished (i.e. if the index contains multiple versions of
that file).
unmerged index:
An index which contains unmerged index entries.
master::
The default development branch. Whenever you create a git
repository, a branch named "master" is created, and becomes
the active branch. In most cases, this contains the local
development, though that is purely conventional and not required.
cache::
Obsolete for: index.
merge::
To merge branches means to try to accumulate the changes since a
common ancestor and apply them to the first branch. An automatic
merge uses heuristics to accomplish that. Evidently, an automatic
merge can fail.
working tree::
The set of files and directories currently being worked on,
i.e. you can work in your working tree without using git at all.
object::
The unit of storage in git. It is uniquely identified by
the SHA1 of its contents. Consequently, an object can not
be changed.
directory::
The list you get with "ls" :-)
object database::
Stores a set of "objects", and an individual object is identified
by its object name. The objects usually live in `$GIT_DIR/objects/`.
revision::
A particular state of files and directories which was stored in
the object database. It is referenced by a commit object.
object identifier::
Synonym for object name.
checkout::
The action of updating the working tree to a revision which was
stored in the object database.
object name::
The unique identifier of an object. The hash of the object's contents
using the Secure Hash Algorithm 1 and usually represented by the 40
character hexadecimal encoding of the hash of the object (possibly
followed by a white space).
commit::
As a verb: The action of storing the current state of the index in the
object database. The result is a revision.
As a noun: Short hand for commit object.
object type:
One of the identifiers "commit","tree","tag" and "blob" describing
the type of an object.
commit object::
An object which contains the information about a particular
revision, such as parents, committer, author, date and the
tree object which corresponds to the top directory of the
stored revision.
octopus::
To merge more than two branches. Also denotes an intelligent
predator.
origin::
The default upstream tracking branch. Most projects have at
least one upstream project which they track. By default
'origin' is used for that purpose. New upstream updates
will be fetched into this branch; you should never commit
to it yourself.
pack::
A set of objects which have been compressed into one file (to save
space or to transmit them efficiently).
pack index::
The list of identifiers, and other information, of the objects in a
pack, to assist in efficiently accessing the contents of a pack.
parent::
A commit object contains a (possibly empty) list of the logical
predecessor(s) in the line of development, i.e. its parents.
changeset::
BitKeeper/cvsps speak for "commit". Since git does not store
changes, but states, it really does not make sense to use
the term "changesets" with git.
pickaxe::
The term pickaxe refers to an option to the diffcore routines
that help select changes that add or delete a given text string.
With the --pickaxe-all option, it can be used to view the
full changeset that introduced or removed, say, a particular
line of text. See gitlink:git-diff[1].
clean::
A working tree is clean, if it corresponds to the revision
referenced by the current head.
plumbing::
Cute name for core git.
dirty::
A working tree is said to be dirty if it contains modifications
which have not been committed to the current branch.
porcelain::
Cute name for programs and program suites depending on core git,
presenting a high level access to core git. Porcelains expose
more of a SCM interface than the plumbing.
head::
The top of a branch. It contains a ref to the corresponding
commit object.
pull::
Pulling a branch means to fetch it and merge it.
branch::
A non-cyclical graph of revisions, i.e. the complete history of
a particular revision, which is called the branch head. The
branch heads are stored in `$GIT_DIR/refs/heads/`.
push::
Pushing a branch means to get the branch's head ref from a remote
repository, 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 reachable from the local head ref, and which are missing from
the remote repository, into the remote object database, and updating
the remote head ref. If the remote head is not an ancestor to the
local head, the push fails.
master::
The default branch. Whenever you create a git repository, a branch
named "master" is created, and becomes the active branch. In most
cases, this contains the local development.
reachable::
An object is reachable from a ref/commit/tree/tag, if there is a
chain leading from the latter to the former.
origin::
The default upstream branch. Most projects have one upstream
project which they track, and by default 'origin' is used for
that purpose. New updates from upstream will be fetched into
this branch; you should never commit to it yourself.
rebase::
To clean a branch by starting from the head of the main line of
development ("master"), and reapply the (possibly cherry-picked)
changes from that branch.
ref::
A 40-byte hex representation of a SHA1 pointing to a particular
object. These may be stored in `$GIT_DIR/refs/`.
A 40-byte hex representation of a SHA1 or a name that denotes
a particular object. These may be stored in `$GIT_DIR/refs/`.
head ref::
A ref pointing to a head. Often, this is abbreviated to "head".
Head refs are stored in `$GIT_DIR/refs/heads/`.
refspec::
A refspec is used by fetch and push to describe the mapping
between remote 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 branch 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 master head
at $URL". See also gitlink:git-push[1]
repository::
A collection of refs together with an object database containing
all objects, which are reachable from the refs, possibly accompanied
by meta data from one or more porcelains. A repository can
share an object database with other repositories.
resolve::
The action of fixing up manually what a failed automatic merge
left behind.
revision::
A particular state of files and directories which was stored in
the object database. It is referenced by a commit object.
rewind::
To throw away part of the development, i.e. to assign the head to
an earlier revision.
SCM::
Source code management (tool).
SHA1::
Synonym for object name.
topic branch::
A regular git branch that is used by a developer to
identify a conceptual line of development. Since branches
are very easy and inexpensive, it is often desirable to
have several small branches that each contain very well
defined concepts or small incremental yet related changes.
tracking branch::
A regular git branch that is used to follow changes from
another 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 ref in a Pull: refspec.
tree object::
An object containing a list of file names and modes along with refs
to the associated blob and/or tree objects. A tree is equivalent
to a directory.
tree::
Either a working tree, or a tree object together with the
dependent blob and tree objects (i.e. a stored representation
of a working tree).
tree-ish::
A ref pointing to either a commit object, a tree object, or a
tag object pointing to a tag or commit or tree object.
ent::
Favorite synonym to "tree-ish" by some total geeks. See
`http://en.wikipedia.org/wiki/Ent_(Middle-earth)` for an in-depth
explanation.
tag object::
An object containing a ref pointing to another object, which can
contain a message just like a commit object. It can also
@ -153,101 +317,10 @@ tag::
A tag is most typically used to mark a particular point in the
commit ancestry chain.
merge::
To merge branches means to try to accumulate the changes since a
common ancestor and apply them to the first branch. An automatic
merge uses heuristics to accomplish that. Evidently, an automatic
merge can fail.
unmerged index:
An index which contains unmerged index entries.
octopus::
To merge more than two branches. Also denotes an intelligent
predator.
resolve::
The action of fixing up manually what a failed automatic merge
left behind.
rewind::
To throw away part of the development, i.e. to assign the head to
an earlier revision.
rebase::
To clean a branch by starting from the head of the main line of
development ("master"), and reapply the (possibly cherry-picked)
changes from that branch.
repository::
A collection of refs together with an object database containing
all objects, which are reachable from the refs, possibly accompanied
by meta data from one or more porcelains. A repository can
share an object database with other repositories.
git archive::
Synonym for repository (for arch people).
file system::
Linus Torvalds originally designed git to be a user space file
system, i.e. the infrastructure to hold files and directories.
That ensured the efficiency and speed of git.
alternate object database::
Via the alternates mechanism, a repository can inherit part of its
object database from another object database, which is called
"alternate".
reachable::
An object is reachable from a ref/commit/tree/tag, if there is a
chain leading from the latter to the former.
chain::
A list of objects, where each object in the list contains a
reference to its successor (for example, the successor of a commit
could be one of its parents).
fetch::
Fetching a branch means to get the branch's head ref from a
remote repository, to find out which objects are missing from
the local object database, and to get them, too.
pull::
Pulling a branch means to fetch it and merge it.
push::
Pushing a branch means to get the branch's head ref from a remote
repository, 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 reachable from the local head ref, and which are missing from
the remote repository, into the remote object database, and updating
the remote head ref. If the remote head is not an ancestor to the
local head, the push fails.
pack::
A set of objects which have been compressed into one file (to save
space or to transmit them efficiently).
pack index::
The list of identifiers, and other information, of the objects in a
pack, to assist in efficiently accessing the contents of a pack.
core git::
Fundamental data structures and utilities of git. Exposes only
limited source code management tools.
plumbing::
Cute name for core git.
porcelain::
Cute name for programs and program suites depending on core git,
presenting a high level access to core git. Porcelains expose
more of a SCM interface than the plumbing.
object type:
One of the identifiers "commit","tree","tag" and "blob" describing
the type of an object.
SCM::
Source code management (tool).
dircache::
You are *waaaaay* behind.
working tree::
The set of files and directories currently being worked on,
i.e. you can work in your working tree without using git at all.

8
Documentation/install-webdoc.sh
View File

@ -4,12 +4,16 @@ T="$1"
for h in *.html *.txt howto/*.txt howto/*.html
do
diff -u -I'Last updated [0-9][0-9]-[A-Z][a-z][a-z]-' "$T/$h" "$h" || {
if test -f "$T/$h" &&
diff -u -I'Last updated [0-9][0-9]-[A-Z][a-z][a-z]-' "$T/$h" "$h"
then
:; # up to date
else
echo >&2 "# install $h $T/$h"
rm -f "$T/$h"
mkdir -p `dirname "$T/$h"`
cp "$h" "$T/$h"
}
fi
done
strip_leading=`echo "$T/" | sed -e 's|.|.|g'`
for th in "$T"/*.html "$T"/*.txt "$T"/howto/*.txt "$T"/howto/*.html

2
Documentation/sort_glossary.pl
View File

@ -48,7 +48,7 @@ This list is sorted alphabetically:
';
@keys=sort {uc($a) cmp uc($b)} keys %terms;
$pattern='(\b'.join('\b|\b',reverse @keys).'\b)';
$pattern='(\b(?<!link:git-)'.join('\b|\b(?<!link:git-)',reverse @keys).'\b)';
foreach $key (@keys) {
$terms{$key}=~s/$pattern/sprintf "<<ref_".no_spaces($1).",$1>>";/eg;
print '[[ref_'.no_spaces($key).']]'.$key."::\n"

93
Makefile
View File

@ -28,8 +28,8 @@ all:
#
# Define NO_SETENV if you don't have setenv in the C library.
#
# Define USE_SYMLINK_HEAD if you want .git/HEAD to be a symbolic link.
# Don't enable it on Windows.
# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
# Enable it on Windows. By default, symrefs are still used.
#
# Define PPC_SHA1 environment variable when running make to make use of
# a bundled SHA1 routine optimized for PowerPC.
@ -113,25 +113,26 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
### --- END CONFIGURATION SECTION ---
SCRIPT_SH = \
git-add.sh git-bisect.sh git-branch.sh git-checkout.sh \
git-bisect.sh git-branch.sh git-checkout.sh \
git-cherry.sh git-clean.sh git-clone.sh git-commit.sh \
git-count-objects.sh git-diff.sh git-fetch.sh \
git-fetch.sh \
git-format-patch.sh git-ls-remote.sh \
git-merge-one-file.sh git-parse-remote.sh \
git-prune.sh git-pull.sh git-push.sh git-rebase.sh \
git-prune.sh git-pull.sh git-rebase.sh \
git-repack.sh git-request-pull.sh git-reset.sh \
git-resolve.sh git-revert.sh git-rm.sh git-sh-setup.sh \
git-tag.sh git-verify-tag.sh git-whatchanged.sh \
git-resolve.sh git-revert.sh git-sh-setup.sh \
git-tag.sh git-verify-tag.sh \
git-applymbox.sh git-applypatch.sh git-am.sh \
git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
git-merge-resolve.sh git-merge-ours.sh git-grep.sh \
git-lost-found.sh
git-merge-resolve.sh git-merge-ours.sh \
git-lost-found.sh git-quiltimport.sh
SCRIPT_PERL = \
git-archimport.perl git-cvsimport.perl git-relink.perl \
git-shortlog.perl git-fmt-merge-msg.perl git-rerere.perl \
git-annotate.perl git-cvsserver.perl \
git-svnimport.perl git-mv.perl git-cvsexportcommit.perl
git-svnimport.perl git-mv.perl git-cvsexportcommit.perl \
git-send-email.perl
SCRIPT_PYTHON = \
git-merge-recursive.py
@ -139,7 +140,7 @@ SCRIPT_PYTHON = \
SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
$(patsubst %.perl,%,$(SCRIPT_PERL)) \
$(patsubst %.py,%,$(SCRIPT_PYTHON)) \
git-cherry-pick git-show git-status
git-cherry-pick git-status
# The ones that do not have to link with lcrypto, lz nor xdiff.
SIMPLE_PROGRAMS = \
@ -153,21 +154,25 @@ PROGRAMS = \
git-convert-objects$X git-diff-files$X \
git-diff-index$X git-diff-stages$X \
git-diff-tree$X git-fetch-pack$X git-fsck-objects$X \
git-hash-object$X git-index-pack$X git-init-db$X git-local-fetch$X \
git-hash-object$X git-index-pack$X git-local-fetch$X \
git-ls-files$X git-ls-tree$X git-mailinfo$X git-merge-base$X \
git-merge-index$X git-mktag$X git-mktree$X git-pack-objects$X git-patch-id$X \
git-peek-remote$X git-prune-packed$X git-read-tree$X \
git-receive-pack$X git-rev-list$X git-rev-parse$X \
git-receive-pack$X git-rev-parse$X \
git-send-pack$X git-show-branch$X git-shell$X \
git-show-index$X git-ssh-fetch$X \
git-ssh-upload$X git-tar-tree$X git-unpack-file$X \
git-unpack-objects$X git-update-index$X git-update-server-info$X \
git-upload-pack$X git-verify-pack$X git-write-tree$X \
git-update-ref$X git-symbolic-ref$X git-check-ref-format$X \
git-update-ref$X git-symbolic-ref$X \
git-name-rev$X git-pack-redundant$X git-repo-config$X git-var$X \
git-describe$X git-merge-tree$X git-blame$X git-imap-send$X
BUILT_INS = git-log$X
BUILT_INS = git-log$X git-whatchanged$X git-show$X \
git-count-objects$X git-diff$X git-push$X \
git-grep$X git-add$X git-rm$X git-rev-list$X \
git-check-ref-format$X \
git-init-db$X
# what 'all' will build and 'install' will install, in gitexecdir
ALL_PROGRAMS = $(PROGRAMS) $(SIMPLE_PROGRAMS) $(SCRIPTS)
@ -196,7 +201,7 @@ LIB_H = \
blob.h cache.h commit.h csum-file.h delta.h \
diff.h object.h pack.h pkt-line.h quote.h refs.h \
run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
tree-walk.h log-tree.h
tree-walk.h log-tree.h dir.h
DIFF_OBJS = \
diff.o diff-lib.o diffcore-break.o diffcore-order.o \
@ -204,17 +209,19 @@ DIFF_OBJS = \
diffcore-delta.o log-tree.o
LIB_OBJS = \
blob.o commit.o connect.o csum-file.o cache-tree.o \
blob.o commit.o connect.o csum-file.o cache-tree.o base85.o \
date.o diff-delta.o entry.o exec_cmd.o ident.o index.o \
object.o pack-check.o patch-delta.o path.o pkt-line.o \
quote.o read-cache.o refs.o run-command.o \
quote.o read-cache.o refs.o run-command.o dir.o \
server-info.o setup.o sha1_file.o sha1_name.o strbuf.o \
tag.o tree.o usage.o config.o environment.o ctype.o copy.o \
fetch-clone.o revision.o pager.o tree-walk.o xdiff-interface.o \
$(DIFF_OBJS)
BUILTIN_OBJS = \
builtin-log.o builtin-help.o
builtin-log.o builtin-help.o builtin-count.o builtin-diff.o builtin-push.o \
builtin-grep.o builtin-add.o builtin-rev-list.o builtin-check-ref-format.o \
builtin-rm.o builtin-init-db.o
GITLIBS = $(LIB_FILE) $(XDIFF_LIB)
LIBS = $(GITLIBS) -lz
@ -263,6 +270,7 @@ ifeq ($(uname_O),Cygwin)
NO_D_TYPE_IN_DIRENT = YesPlease
NO_D_INO_IN_DIRENT = YesPlease
NO_STRCASESTR = YesPlease
NO_SYMLINK_HEAD = YesPlease
NEEDS_LIBICONV = YesPlease
# There are conflicting reports about this.
# On some boxes NO_MMAP is needed, and not so elsewhere.
@ -283,7 +291,9 @@ ifeq ($(uname_S),OpenBSD)
ALL_LDFLAGS += -L/usr/local/lib
endif
ifeq ($(uname_S),NetBSD)
NEEDS_LIBICONV = YesPlease
ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
NEEDS_LIBICONV = YesPlease
endif
ALL_CFLAGS += -I/usr/pkg/include
ALL_LDFLAGS += -L/usr/pkg/lib -Wl,-rpath,/usr/pkg/lib
endif
@ -317,10 +327,6 @@ else
endif
endif
ifdef WITH_SEND_EMAIL
SCRIPT_PERL += git-send-email.perl
endif
ifndef NO_CURL
ifdef CURLDIR
# This is still problematic -- gcc does not always want -R.
@ -386,6 +392,9 @@ endif
ifdef NO_D_INO_IN_DIRENT
ALL_CFLAGS += -DNO_D_INO_IN_DIRENT
endif
ifdef NO_SYMLINK_HEAD
ALL_CFLAGS += -DNO_SYMLINK_HEAD
endif
ifdef NO_STRCASESTR
COMPAT_CFLAGS += -DNO_STRCASESTR
COMPAT_OBJS += compat/strcasestr.o
@ -453,6 +462,7 @@ PYTHON_PATH_SQ = $(subst ','\'',$(PYTHON_PATH))
GIT_PYTHON_DIR_SQ = $(subst ','\'',$(GIT_PYTHON_DIR))
ALL_CFLAGS += -DSHA1_HEADER='$(SHA1_HEADER_SQ)' $(COMPAT_CFLAGS)
ALL_CFLAGS += -DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"'
LIB_OBJS += $(COMPAT_OBJS)
export prefix TAR INSTALL DESTDIR SHELL_PATH template_dir
### Build rules
@ -505,9 +515,6 @@ $(patsubst %.py,%,$(SCRIPT_PYTHON)) : % : %.py
git-cherry-pick: git-revert
cp $< $@
git-show: git-whatchanged
cp $< $@
git-status: git-commit
cp $< $@
@ -562,14 +569,6 @@ git-http-push$X: revision.o http.o http-push.o $(LIB_FILE)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
git-rev-list$X: rev-list.o $(LIB_FILE)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(OPENSSL_LIBSSL)
init-db.o: init-db.c
$(CC) -c $(ALL_CFLAGS) \
-DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $*.c
$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
$(patsubst git-%$X,%.o,$(PROGRAMS)): $(GITLIBS)
$(DIFF_OBJS): diffcore.h
@ -609,7 +608,7 @@ test-date$X: test-date.c date.o ctype.o
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) test-date.c date.o ctype.o
test-delta$X: test-delta.c diff-delta.o patch-delta.o
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $^ -lz
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $^
test-dump-cache-tree$X: dump-cache-tree.o $(GITLIBS)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
@ -656,6 +655,25 @@ dist: git.spec git-tar-tree
rpm: dist
$(RPMBUILD) -ta $(GIT_TARNAME).tar.gz
htmldocs = git-htmldocs-$(GIT_VERSION)
manpages = git-manpages-$(GIT_VERSION)
dist-doc:
rm -fr .doc-tmp-dir
mkdir .doc-tmp-dir
$(MAKE) -C Documentation WEBDOC_DEST=../.doc-tmp-dir install-webdoc
cd .doc-tmp-dir && $(TAR) cf ../$(htmldocs).tar .
gzip -n -9 -f $(htmldocs).tar
:
rm -fr .doc-tmp-dir
mkdir .doc-tmp-dir .doc-tmp-dir/man1 .doc-tmp-dir/man7
$(MAKE) -C Documentation DESTDIR=. \
man1=../.doc-tmp-dir/man1 \
man7=../.doc-tmp-dir/man7 \
install
cd .doc-tmp-dir && $(TAR) cf ../$(manpages).tar .
gzip -n -9 -f $(manpages).tar
rm -fr .doc-tmp-dir
### Cleaning rules
clean:
@ -663,8 +681,9 @@ clean:
$(LIB_FILE) $(XDIFF_LIB)
rm -f $(ALL_PROGRAMS) $(BUILT_INS) git$X
rm -f *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
rm -rf $(GIT_TARNAME)
rm -rf $(GIT_TARNAME) .doc-tmp-dir
rm -f $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz
rm -f $(htmldocs).tar $(manpages).tar
$(MAKE) -C Documentation/ clean
$(MAKE) -C templates clean
$(MAKE) -C t/ clean

408
apply.c
View File

@ -11,20 +11,25 @@
#include "cache-tree.h"
#include "quote.h"
#include "blob.h"
#include "delta.h"
// --check turns on checking that the working tree matches the
// files that are being modified, but doesn't apply the patch
// --stat does just a diffstat, and doesn't actually apply
// --numstat does numeric diffstat, and doesn't actually apply
// --index-info shows the old and new index info for paths if available.
// --index updates the cache as well.
// --cached updates only the cache without ever touching the working tree.
//
static const char *prefix;
static int prefix_length = -1;
static int newfd = -1;
static int p_value = 1;
static int allow_binary_replacement = 0;
static int check_index = 0;
static int write_index = 0;
static int cached = 0;
static int diffstat = 0;
static int numstat = 0;
static int summary = 0;
@ -35,7 +40,7 @@ static int show_index_info = 0;
static int line_termination = '\n';
static unsigned long p_context = -1;
static const char apply_usage[] =
"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
"git-apply [--stat] [--numstat] [--summary] [--check] [--index] [--cached] [--apply] [--no-add] [--index-info] [--allow-binary-replacement] [-z] [-pNUM] [-CNUM] [--whitespace=<nowarn|warn|error|error-all|strip>] <patch>...";
static enum whitespace_eol {
nowarn_whitespace,
@ -114,6 +119,9 @@ struct patch {
char *new_name, *old_name, *def_name;
unsigned int old_mode, new_mode;
int is_rename, is_copy, is_new, is_delete, is_binary;
#define BINARY_DELTA_DEFLATED 1
#define BINARY_LITERAL_DEFLATED 2
unsigned long deflate_origlen;
int lines_added, lines_deleted;
int score;
struct fragment *fragments;
@ -967,6 +975,88 @@ static inline int metadata_changes(struct patch *patch)
patch->old_mode != patch->new_mode);
}
static int parse_binary(char *buffer, unsigned long size, struct patch *patch)
{
/* We have read "GIT binary patch\n"; what follows is a line
* that says the patch method (currently, either "deflated
* literal" or "deflated delta") and the length of data before
* deflating; a sequence of 'length-byte' followed by base-85
* encoded data follows.
*
* Each 5-byte sequence of base-85 encodes up to 4 bytes,
* and we would limit the patch line to 66 characters,
* so one line can fit up to 13 groups that would decode
* to 52 bytes max. The length byte 'A'-'Z' corresponds
* to 1-26 bytes, and 'a'-'z' corresponds to 27-52 bytes.
* The end of binary is signalled with an empty line.
*/
int llen, used;
struct fragment *fragment;
char *data = NULL;
patch->fragments = fragment = xcalloc(1, sizeof(*fragment));
/* Grab the type of patch */
llen = linelen(buffer, size);
used = llen;
linenr++;
if (!strncmp(buffer, "delta ", 6)) {
patch->is_binary = BINARY_DELTA_DEFLATED;
patch->deflate_origlen = strtoul(buffer + 6, NULL, 10);
}
else if (!strncmp(buffer, "literal ", 8)) {
patch->is_binary = BINARY_LITERAL_DEFLATED;
patch->deflate_origlen = strtoul(buffer + 8, NULL, 10);
}
else
return error("unrecognized binary patch at line %d: %.*s",
linenr-1, llen-1, buffer);
buffer += llen;
while (1) {
int byte_length, max_byte_length, newsize;
llen = linelen(buffer, size);
used += llen;
linenr++;
if (llen == 1)
break;
/* Minimum line is "A00000\n" which is 7-byte long,
* and the line length must be multiple of 5 plus 2.
*/
if ((llen < 7) || (llen-2) % 5)
goto corrupt;
max_byte_length = (llen - 2) / 5 * 4;
byte_length = *buffer;
if ('A' <= byte_length && byte_length <= 'Z')
byte_length = byte_length - 'A' + 1;
else if ('a' <= byte_length && byte_length <= 'z')
byte_length = byte_length - 'a' + 27;
else
goto corrupt;
/* if the input length was not multiple of 4, we would
* have filler at the end but the filler should never
* exceed 3 bytes
*/
if (max_byte_length < byte_length ||
byte_length <= max_byte_length - 4)
goto corrupt;
newsize = fragment->size + byte_length;
data = xrealloc(data, newsize);
if (decode_85(data + fragment->size,
buffer + 1,
byte_length))
goto corrupt;
fragment->size = newsize;
buffer += llen;
size -= llen;
}
fragment->patch = data;
return used;
corrupt:
return error("corrupt binary patch at line %d: %.*s",
linenr-1, llen-1, buffer);
}
static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
{
int hdrsize, patchsize;
@ -983,19 +1073,34 @@ static int parse_chunk(char *buffer, unsigned long size, struct patch *patch)
"Files ",
NULL,
};
static const char git_binary[] = "GIT binary patch\n";
int i;
int hd = hdrsize + offset;
unsigned long llen = linelen(buffer + hd, size - hd);
if (!memcmp(" differ\n", buffer + hd + llen - 8, 8))
if (llen == sizeof(git_binary) - 1 &&
!memcmp(git_binary, buffer + hd, llen)) {
int used;
linenr++;
used = parse_binary(buffer + hd + llen,
size - hd - llen, patch);
if (used)
patchsize = used + llen;
else
patchsize = 0;
}
else if (!memcmp(" differ\n", buffer + hd + llen - 8, 8)) {
for (i = 0; binhdr[i]; i++) {
int len = strlen(binhdr[i]);
if (len < size - hd &&
!memcmp(binhdr[i], buffer + hd, len)) {
linenr++;
patch->is_binary = 1;
patchsize = llen;
break;
}
}
}
/* Empty patch cannot be applied if:
* - it is a binary patch and we do not do binary_replace, or
@ -1346,75 +1451,149 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag)
return offset;
}
static char *inflate_it(const void *data, unsigned long size,
unsigned long inflated_size)
{
z_stream stream;
void *out;
int st;
memset(&stream, 0, sizeof(stream));
stream.next_in = (unsigned char *)data;
stream.avail_in = size;
stream.next_out = out = xmalloc(inflated_size);
stream.avail_out = inflated_size;
inflateInit(&stream);
st = inflate(&stream, Z_FINISH);
if ((st != Z_STREAM_END) || stream.total_out != inflated_size) {
free(out);
return NULL;
}
return out;
}
static int apply_binary_fragment(struct buffer_desc *desc, struct patch *patch)
{
unsigned long dst_size;
struct fragment *fragment = patch->fragments;
void *data;
void *result;
data = inflate_it(fragment->patch, fragment->size,
patch->deflate_origlen);
if (!data)
return error("corrupt patch data");
switch (patch->is_binary) {
case BINARY_DELTA_DEFLATED:
result = patch_delta(desc->buffer, desc->size,
data,
patch->deflate_origlen,
&dst_size);
free(desc->buffer);
desc->buffer = result;
free(data);
break;
case BINARY_LITERAL_DEFLATED:
free(desc->buffer);
desc->buffer = data;
dst_size = patch->deflate_origlen;
break;
}
if (!desc->buffer)
return -1;
desc->size = desc->alloc = dst_size;
return 0;
}
static int apply_binary(struct buffer_desc *desc, struct patch *patch)
{
const char *name = patch->old_name ? patch->old_name : patch->new_name;
unsigned char sha1[20];
unsigned char hdr[50];
int hdrlen;
if (!allow_binary_replacement)
return error("cannot apply binary patch to '%s' "
"without --allow-binary-replacement",
name);
/* For safety, we require patch index line to contain
* full 40-byte textual SHA1 for old and new, at least for now.
*/
if (strlen(patch->old_sha1_prefix) != 40 ||
strlen(patch->new_sha1_prefix) != 40 ||
get_sha1_hex(patch->old_sha1_prefix, sha1) ||
get_sha1_hex(patch->new_sha1_prefix, sha1))
return error("cannot apply binary patch to '%s' "
"without full index line", name);
if (patch->old_name) {
/* See if the old one matches what the patch
* applies to.
*/
write_sha1_file_prepare(desc->buffer, desc->size,
blob_type, sha1, hdr, &hdrlen);
if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
return error("the patch applies to '%s' (%s), "
"which does not match the "
"current contents.",
name, sha1_to_hex(sha1));
}
else {
/* Otherwise, the old one must be empty. */
if (desc->size)
return error("the patch applies to an empty "
"'%s' but it is not empty", name);
}
get_sha1_hex(patch->new_sha1_prefix, sha1);
if (!memcmp(sha1, null_sha1, 20)) {
free(desc->buffer);
desc->alloc = desc->size = 0;
desc->buffer = NULL;
return 0; /* deletion patch */
}
if (has_sha1_file(sha1)) {
/* We already have the postimage */
char type[10];
unsigned long size;
free(desc->buffer);
desc->buffer = read_sha1_file(sha1, type, &size);
if (!desc->buffer)
return error("the necessary postimage %s for "
"'%s' cannot be read",
patch->new_sha1_prefix, name);
desc->alloc = desc->size = size;
}
else {
/* We have verified desc matches the preimage;
* apply the patch data to it, which is stored
* in the patch->fragments->{patch,size}.
*/
if (apply_binary_fragment(desc, patch))
return error("binary patch does not apply to '%s'",
name);
/* verify that the result matches */
write_sha1_file_prepare(desc->buffer, desc->size, blob_type,
sha1, hdr, &hdrlen);
if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix))
return error("binary patch to '%s' creates incorrect result", name);
}
return 0;
}
static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
{
struct fragment *frag = patch->fragments;
const char *name = patch->old_name ? patch->old_name : patch->new_name;
if (patch->is_binary) {
unsigned char sha1[20];
if (!allow_binary_replacement)
return error("cannot apply binary patch to '%s' "
"without --allow-binary-replacement",
name);
/* For safety, we require patch index line to contain
* full 40-byte textual SHA1 for old and new, at least for now.
*/
if (strlen(patch->old_sha1_prefix) != 40 ||
strlen(patch->new_sha1_prefix) != 40 ||
get_sha1_hex(patch->old_sha1_prefix, sha1) ||
get_sha1_hex(patch->new_sha1_prefix, sha1))
return error("cannot apply binary patch to '%s' "
"without full index line", name);
if (patch->old_name) {
unsigned char hdr[50];
int hdrlen;
/* See if the old one matches what the patch
* applies to.
*/
write_sha1_file_prepare(desc->buffer, desc->size,
blob_type, sha1, hdr, &hdrlen);
if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
return error("the patch applies to '%s' (%s), "
"which does not match the "
"current contents.",
name, sha1_to_hex(sha1));
}
else {
/* Otherwise, the old one must be empty. */
if (desc->size)
return error("the patch applies to an empty "
"'%s' but it is not empty", name);
}
/* For now, we do not record post-image data in the patch,
* and require the object already present in the recipient's
* object database.
*/
if (desc->buffer) {
free(desc->buffer);
desc->alloc = desc->size = 0;
}
get_sha1_hex(patch->new_sha1_prefix, sha1);
if (memcmp(sha1, null_sha1, 20)) {
char type[10];
unsigned long size;
desc->buffer = read_sha1_file(sha1, type, &size);
if (!desc->buffer)
return error("the necessary postimage %s for "
"'%s' does not exist",
patch->new_sha1_prefix, name);
desc->alloc = desc->size = size;
}
return 0;
}
if (patch->is_binary)
return apply_binary(desc, patch);
while (frag) {
if (apply_one_fragment(desc, frag) < 0)
@ -1425,7 +1604,7 @@ static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
return 0;
}
static int apply_data(struct patch *patch, struct stat *st)
static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce)
{
char *buf;
unsigned long size, alloc;
@ -1434,7 +1613,17 @@ static int apply_data(struct patch *patch, struct stat *st)
size = 0;
alloc = 0;
buf = NULL;
if (patch->old_name) {
if (cached) {
if (ce) {
char type[20];
buf = read_sha1_file(ce->sha1, type, &size);
if (!buf)
return error("read of %s failed",
patch->old_name);
alloc = size;
}
}
else if (patch->old_name) {
size = st->st_size;
alloc = size + 8192;
buf = xmalloc(alloc);
@ -1462,16 +1651,21 @@ static int check_patch(struct patch *patch)
const char *old_name = patch->old_name;
const char *new_name = patch->new_name;
const char *name = old_name ? old_name : new_name;
struct cache_entry *ce = NULL;
if (old_name) {
int changed;
int stat_ret = lstat(old_name, &st);
int changed = 0;
int stat_ret = 0;
unsigned st_mode = 0;
if (!cached)
stat_ret = lstat(old_name, &st);
if (check_index) {
int pos = cache_name_pos(old_name, strlen(old_name));
if (pos < 0)
return error("%s: does not exist in index",
old_name);
ce = active_cache[pos];
if (stat_ret < 0) {
struct checkout costate;
if (errno != ENOENT)
@ -1484,40 +1678,46 @@ static int check_patch(struct patch *patch)
costate.quiet = 0;
costate.not_new = 0;
costate.refresh_cache = 1;
if (checkout_entry(active_cache[pos],
if (checkout_entry(ce,
&costate,
NULL) ||
lstat(old_name, &st))
return -1;
}
changed = ce_match_stat(active_cache[pos], &st, 1);
if (!cached)
changed = ce_match_stat(ce, &st, 1);
if (changed)
return error("%s: does not match index",
old_name);
if (cached)
st_mode = ntohl(ce->ce_mode);
}
else if (stat_ret < 0)
return error("%s: %s", old_name, strerror(errno));
if (!cached)
st_mode = ntohl(create_ce_mode(st.st_mode));
if (patch->is_new < 0)
patch->is_new = 0;
st.st_mode = ntohl(create_ce_mode(st.st_mode));
if (!patch->old_mode)
patch->old_mode = st.st_mode;
if ((st.st_mode ^ patch->old_mode) & S_IFMT)
patch->old_mode = st_mode;
if ((st_mode ^ patch->old_mode) & S_IFMT)
return error("%s: wrong type", old_name);
if (st.st_mode != patch->old_mode)
if (st_mode != patch->old_mode)
fprintf(stderr, "warning: %s has type %o, expected %o\n",
old_name, st.st_mode, patch->old_mode);
old_name, st_mode, patch->old_mode);
}
if (new_name && (patch->is_new | patch->is_rename | patch->is_copy)) {
if (check_index && cache_name_pos(new_name, strlen(new_name)) >= 0)
return error("%s: already exists in index", new_name);
if (!lstat(new_name, &st))
return error("%s: already exists in working directory", new_name);
if (errno != ENOENT)
return error("%s: %s", new_name, strerror(errno));
if (!cached) {
if (!lstat(new_name, &st))
return error("%s: already exists in working directory", new_name);
if (errno != ENOENT)
return error("%s: %s", new_name, strerror(errno));
}
if (!patch->new_mode) {
if (patch->is_new)
patch->new_mode = S_IFREG | 0644;
@ -1534,9 +1734,9 @@ static int check_patch(struct patch *patch)
return error("new mode (%o) of %s does not match old mode (%o)%s%s",
patch->new_mode, new_name, patch->old_mode,
same ? "" : " of ", same ? "" : old_name);
}
}
if (apply_data(patch, &st) < 0)
if (apply_data(patch, &st, ce) < 0)
return error("%s: patch does not apply", name);
return 0;
}
@ -1603,7 +1803,7 @@ static void numstat_patch_list(struct patch *patch)
{
for ( ; patch; patch = patch->next) {
const char *name;
name = patch->old_name ? patch->old_name : patch->new_name;
name = patch->new_name ? patch->new_name : patch->old_name;
printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
if (line_termination && quote_c_style(name, NULL, NULL, 0))
quote_c_style(name, NULL, stdout, 0);
@ -1720,7 +1920,8 @@ static void remove_file(struct patch *patch)
die("unable to remove %s from index", patch->old_name);
cache_tree_invalidate_path(active_cache_tree, patch->old_name);
}
unlink(patch->old_name);
if (!cached)
unlink(patch->old_name);
}
static void add_index_file(const char *path, unsigned mode, void *buf, unsigned long size)
@ -1737,9 +1938,11 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
memcpy(ce->name, path, namelen);
ce->ce_mode = create_ce_mode(mode);
ce->ce_flags = htons(namelen);
if (lstat(path, &st) < 0)
die("unable to stat newly created file %s", path);
fill_stat_cache_info(ce, &st);
if (!cached) {
if (lstat(path, &st) < 0)
die("unable to stat newly created file %s", path);
fill_stat_cache_info(ce, &st);
}
if (write_sha1_file(buf, size, blob_type, ce->sha1) < 0)
die("unable to create backing store for newly created file %s", path);
if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0)
@ -1776,6 +1979,8 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
*/
static void create_one_file(char *path, unsigned mode, const char *buf, unsigned long size)
{
if (cached)
return;
if (!try_create_file(path, mode, buf, size))
return;
@ -1876,7 +2081,6 @@ static int use_patch(struct patch *p)
static int apply_patch(int fd, const char *filename)
{
int newfd;
unsigned long offset, size;
char *buffer = read_patch_file(fd, &size);
struct patch *list = NULL, **listp = &list;
@ -1907,12 +2111,11 @@ static int apply_patch(int fd, const char *filename)
size -= nr;
}
newfd = -1;
if (whitespace_error && (new_whitespace == error_on_whitespace))
apply = 0;
write_index = check_index && apply;
if (write_index)
if (write_index && newfd < 0)
newfd = hold_index_file_for_update(&cache_file, get_index_file());
if (check_index) {
if (read_cache() < 0)
@ -1925,12 +2128,6 @@ static int apply_patch(int fd, const char *filename)
if (apply)
write_out_results(list, skipped_patch);
if (write_index) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_index_file(&cache_file))
die("Unable to write new cachefile");
}
if (show_index_info)
show_index_list(list);
@ -1993,7 +2190,8 @@ int main(int argc, char **argv)
diffstat = 1;
continue;
}
if (!strcmp(arg, "--allow-binary-replacement")) {
if (!strcmp(arg, "--allow-binary-replacement") ||
!strcmp(arg, "--binary")) {
allow_binary_replacement = 1;
continue;
}
@ -2016,6 +2214,11 @@ int main(int argc, char **argv)
check_index = 1;
continue;
}
if (!strcmp(arg, "--cached")) {
check_index = 1;
cached = 1;
continue;
}
if (!strcmp(arg, "--apply")) {
apply = 1;
continue;
@ -2088,5 +2291,12 @@ int main(int argc, char **argv)
whitespace_error == 1 ? "" : "s",
whitespace_error == 1 ? "s" : "");
}
if (write_index) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_index_file(&cache_file))
die("Unable to write new cachefile");
}
return 0;
}

140
base85.c Normal file
View File

@ -0,0 +1,140 @@
#include "cache.h"
#undef DEBUG_85
#ifdef DEBUG_85
#define say(a) fprintf(stderr, a)
#define say1(a,b) fprintf(stderr, a, b)
#define say2(a,b,c) fprintf(stderr, a, b, c)
#else
#define say(a) do {} while(0)
#define say1(a,b) do {} while(0)
#define say2(a,b,c) do {} while(0)
#endif
static const char en85[] = {
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
'u', 'v', 'w', 'x', 'y', 'z',
'!', '#', '$', '%', '&', '(', ')', '*', '+', '-',
';', '<', '=', '>', '?', '@', '^', '_', '`', '{',
'|', '}', '~'
};
static char de85[256];
static void prep_base85(void)
{
int i;
if (de85['Z'])
return;
for (i = 0; i < ARRAY_SIZE(en85); i++) {
int ch = en85[i];
de85[ch] = i + 1;
}
}
int decode_85(char *dst, char *buffer, int len)
{
prep_base85();
say2("decode 85 <%.*s>", len/4*5, buffer);
while (len) {
unsigned acc = 0;
int de, cnt = 4;
unsigned char ch;
do {
ch = *buffer++;
de = de85[ch];
if (--de < 0)
return error("invalid base85 alphabet %c", ch);
acc = acc * 85 + de;
} while (--cnt);
ch = *buffer++;
de = de85[ch];
if (--de < 0)
return error("invalid base85 alphabet %c", ch);
/*
* Detect overflow. The largest
* 5-letter possible is "|NsC0" to
* encode 0xffffffff, and "|NsC" gives
* 0x03030303 at this point (i.e.
* 0xffffffff = 0x03030303 * 85).
*/
if (0x03030303 < acc ||
0xffffffff - de < (acc *= 85))
error("invalid base85 sequence %.5s", buffer-5);
acc += de;
say1(" %08x", acc);
cnt = (len < 4) ? len : 4;
len -= cnt;
do {
acc = (acc << 8) | (acc >> 24);
*dst++ = acc;
} while (--cnt);
}
say("\n");
return 0;
}
void encode_85(char *buf, unsigned char *data, int bytes)
{
prep_base85();
say("encode 85");
while (bytes) {
unsigned acc = 0;
int cnt;
for (cnt = 24; cnt >= 0; cnt -= 8) {
int ch = *data++;
acc |= ch << cnt;
if (--bytes == 0)
break;
}
say1(" %08x", acc);
for (cnt = 4; cnt >= 0; cnt--) {
int val = acc % 85;
acc /= 85;
buf[cnt] = en85[val];
}
buf += 5;
}
say("\n");
*buf = 0;
}
#ifdef DEBUG_85
int main(int ac, char **av)
{
char buf[1024];
if (!strcmp(av[1], "-e")) {
int len = strlen(av[2]);
encode_85(buf, av[2], len);
if (len <= 26) len = len + 'A' - 1;
else len = len + 'a' - 26 + 1;
printf("encoded: %c%s\n", len, buf);
return 0;
}
if (!strcmp(av[1], "-d")) {
int len = *av[2];
if ('A' <= len && len <= 'Z') len = len - 'A' + 1;
else len = len - 'a' + 26 + 1;
decode_85(buf, av[2]+1, len);
printf("decoded: %.*s\n", len, buf);
return 0;
}
if (!strcmp(av[1], "-t")) {
char t[4] = { -1,-1,-1,-1 };
encode_85(buf, t, 4);
printf("encoded: D%s\n", buf);
return 0;
}
}
#endif

10
blame.c
View File

@ -515,9 +515,9 @@ static int compare_tree_path(struct rev_info* revs,
paths[1] = NULL;
diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
&revs->diffopt);
&revs->pruning);
ret = rev_compare_tree(revs, c1->tree, c2->tree);
diff_tree_release_paths(&revs->diffopt);
diff_tree_release_paths(&revs->pruning);
return ret;
}
@ -531,9 +531,9 @@ static int same_tree_as_empty_path(struct rev_info *revs, struct tree* t1,
paths[1] = NULL;
diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
&revs->diffopt);
&revs->pruning);
ret = rev_same_tree_as_empty(revs, t1);
diff_tree_release_paths(&revs->diffopt);
diff_tree_release_paths(&revs->pruning);
return ret;
}
@ -834,7 +834,7 @@ int main(int argc, const char **argv)
args[0] = filename;
args[1] = NULL;
diff_tree_setup_paths(args, &rev.diffopt);
diff_tree_setup_paths(args, &rev.pruning);
prepare_revision_walk(&rev);
process_commits(&rev, filename, &initial);

189
builtin-add.c Normal file
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@ -0,0 +1,189 @@
/*
* "git add" builtin command
*
* Copyright (C) 2006 Linus Torvalds
*/
#include <fnmatch.h>
#include "cache.h"
#include "builtin.h"
#include "dir.h"
#include "cache-tree.h"
static const char builtin_add_usage[] =
"git-add [-n] [-v] <filepattern>...";
static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
{
char *seen;
int i, specs;
struct dir_entry **src, **dst;
for (specs = 0; pathspec[specs]; specs++)
/* nothing */;
seen = xmalloc(specs);
memset(seen, 0, specs);
src = dst = dir->entries;
i = dir->nr;
while (--i >= 0) {
struct dir_entry *entry = *src++;
if (!match_pathspec(pathspec, entry->name, entry->len, prefix, seen)) {
free(entry);
continue;
}
*dst++ = entry;
}
dir->nr = dst - dir->entries;
for (i = 0; i < specs; i++) {
struct stat st;
const char *match;
if (seen[i])
continue;
/* Existing file? We must have ignored it */
match = pathspec[i];
if (!match[0] || !lstat(match, &st))
continue;
die("pathspec '%s' did not match any files", match);
}
}
static void fill_directory(struct dir_struct *dir, const char **pathspec)
{
const char *path, *base;
int baselen;
/* Set up the default git porcelain excludes */
memset(dir, 0, sizeof(*dir));
dir->exclude_per_dir = ".gitignore";
path = git_path("info/exclude");
if (!access(path, R_OK))
add_excludes_from_file(dir, path);
/*
* Calculate common prefix for the pathspec, and
* use that to optimize the directory walk
*/
baselen = common_prefix(pathspec);
path = ".";
base = "";
if (baselen) {
char *common = xmalloc(baselen + 1);
common = xmalloc(baselen + 1);
memcpy(common, *pathspec, baselen);
common[baselen] = 0;
path = base = common;
}
/* Read the directory and prune it */
read_directory(dir, path, base, baselen);
if (pathspec)
prune_directory(dir, pathspec, baselen);
}
static int add_file_to_index(const char *path, int verbose)
{
int size, namelen;
struct stat st;
struct cache_entry *ce;
if (lstat(path, &st))
die("%s: unable to stat (%s)", path, strerror(errno));
if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode))
die("%s: can only add regular files or symbolic links", path);
namelen = strlen(path);
size = cache_entry_size(namelen);
ce = xcalloc(1, size);
memcpy(ce->name, path, namelen);
ce->ce_flags = htons(namelen);
fill_stat_cache_info(ce, &st);
ce->ce_mode = create_ce_mode(st.st_mode);
if (!trust_executable_bit) {
/* If there is an existing entry, pick the mode bits
* from it.
*/
int pos = cache_name_pos(path, namelen);
if (pos >= 0)
ce->ce_mode = active_cache[pos]->ce_mode;
}
if (index_path(ce->sha1, path, &st, 1))
die("unable to index file %s", path);
if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD))
die("unable to add %s to index",path);
if (verbose)
printf("add '%s'\n", path);
cache_tree_invalidate_path(active_cache_tree, path);
return 0;
}
static struct cache_file cache_file;
int cmd_add(int argc, const char **argv, char **envp)
{
int i, newfd;
int verbose = 0, show_only = 0;
const char *prefix = setup_git_directory();
const char **pathspec;
struct dir_struct dir;
git_config(git_default_config);
newfd = hold_index_file_for_update(&cache_file, get_index_file());
if (newfd < 0)
die("unable to create new cachefile");
if (read_cache() < 0)
die("index file corrupt");
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-')
break;
if (!strcmp(arg, "--")) {
i++;
break;
}
if (!strcmp(arg, "-n")) {
show_only = 1;
continue;
}
if (!strcmp(arg, "-v")) {
verbose = 1;
continue;
}
die(builtin_add_usage);
}
git_config(git_default_config);
pathspec = get_pathspec(prefix, argv + i);
fill_directory(&dir, pathspec);
if (show_only) {
const char *sep = "", *eof = "";
for (i = 0; i < dir.nr; i++) {
printf("%s%s", sep, dir.entries[i]->name);
sep = " ";
eof = "\n";
}
fputs(eof, stdout);
return 0;
}
for (i = 0; i < dir.nr; i++)
add_file_to_index(dir.entries[i]->name, verbose);
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_index_file(&cache_file))
die("Unable to write new index file");
}
return 0;
}

14
builtin-check-ref-format.c Normal file
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@ -0,0 +1,14 @@
/*
* GIT - The information manager from hell
*/
#include "cache.h"
#include "refs.h"
#include "builtin.h"
int cmd_check_ref_format(int argc, const char **argv, char **envp)
{
if (argc != 2)
usage("git check-ref-format refname");
return !!check_ref_format(argv[1]);
}

125
builtin-count.c Normal file
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@ -0,0 +1,125 @@
/*
* Builtin "git count-objects".
*
* Copyright (c) 2006 Junio C Hamano
*/
#include "cache.h"
#include "builtin.h"
static const char count_objects_usage[] = "git-count-objects [-v]";
static void count_objects(DIR *d, char *path, int len, int verbose,
unsigned long *loose,
unsigned long *loose_size,
unsigned long *packed_loose,
unsigned long *garbage)
{
struct dirent *ent;
while ((ent = readdir(d)) != NULL) {
char hex[41];
unsigned char sha1[20];
const char *cp;
int bad = 0;
if ((ent->d_name[0] == '.') &&
(ent->d_name[1] == 0 ||
((ent->d_name[1] == '.') && (ent->d_name[2] == 0))))
continue;
for (cp = ent->d_name; *cp; cp++) {
int ch = *cp;
if (('0' <= ch && ch <= '9') ||
('a' <= ch && ch <= 'f'))
continue;
bad = 1;
break;
}
if (cp - ent->d_name != 38)
bad = 1;
else {
struct stat st;
memcpy(path + len + 3, ent->d_name, 38);
path[len + 2] = '/';
path[len + 41] = 0;
if (lstat(path, &st) || !S_ISREG(st.st_mode))
bad = 1;
else
(*loose_size) += st.st_blocks;
}
if (bad) {
if (verbose) {
error("garbage found: %.*s/%s",
len + 2, path, ent->d_name);
(*garbage)++;
}
continue;
}
(*loose)++;
if (!verbose)
continue;
memcpy(hex, path+len, 2);
memcpy(hex+2, ent->d_name, 38);
hex[40] = 0;
if (get_sha1_hex(hex, sha1))
die("internal error");
if (has_sha1_pack(sha1))
(*packed_loose)++;
}
}
int cmd_count_objects(int ac, const char **av, char **ep)
{
int i;
int verbose = 0;
const char *objdir = get_object_directory();
int len = strlen(objdir);
char *path = xmalloc(len + 50);
unsigned long loose = 0, packed = 0, packed_loose = 0, garbage = 0;
unsigned long loose_size = 0;
for (i = 1; i < ac; i++) {
const char *arg = av[i];
if (*arg != '-')
break;
else if (!strcmp(arg, "-v"))
verbose = 1;
else
usage(count_objects_usage);
}
/* we do not take arguments other than flags for now */
if (i < ac)
usage(count_objects_usage);
memcpy(path, objdir, len);
if (len && objdir[len-1] != '/')
path[len++] = '/';
for (i = 0; i < 256; i++) {
DIR *d;
sprintf(path + len, "%02x", i);
d = opendir(path);
if (!d)
continue;
count_objects(d, path, len, verbose,
&loose, &loose_size, &packed_loose, &garbage);
closedir(d);
}
if (verbose) {
struct packed_git *p;
if (!packed_git)
prepare_packed_git();
for (p = packed_git; p; p = p->next) {
if (!p->pack_local)
continue;
packed += num_packed_objects(p);
}
printf("count: %lu\n", loose);
printf("size: %lu\n", loose_size / 2);
printf("in-pack: %lu\n", packed);
printf("prune-packable: %lu\n", packed_loose);
printf("garbage: %lu\n", garbage);
}
else
printf("%lu objects, %lu kilobytes\n",
loose, loose_size / 2);
return 0;
}

370
builtin-diff.c Normal file
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@ -0,0 +1,370 @@
/*
* Builtin "git diff"
*
* Copyright (c) 2006 Junio C Hamano
*/
#include "cache.h"
#include "commit.h"
#include "blob.h"
#include "tag.h"
#include "diff.h"
#include "diffcore.h"
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
/* NEEDSWORK: struct object has place for name but we _do_
* know mode when we extracted the blob out of a tree, which
* we currently lose.
*/
struct blobinfo {
unsigned char sha1[20];
const char *name;
};
static const char builtin_diff_usage[] =
"diff <options> <rev>{0,2} -- <path>*";
static int builtin_diff_files(struct rev_info *revs,
int argc, const char **argv)
{
int silent = 0;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--base"))
revs->max_count = 1;
else if (!strcmp(arg, "--ours"))
revs->max_count = 2;
else if (!strcmp(arg, "--theirs"))
revs->max_count = 3;
else if (!strcmp(arg, "-q"))
silent = 1;
else if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/*
* Make sure there are NO revision (i.e. pending object) parameter,
* specified rev.max_count is reasonable (0 <= n <= 3), and
* there is no other revision filtering parameter.
*/
if (revs->pending_objects ||
revs->min_age != -1 ||
revs->max_age != -1 ||
3 < revs->max_count)
usage(builtin_diff_usage);
if (revs->max_count < 0 &&
(revs->diffopt.output_format == DIFF_FORMAT_PATCH))
revs->combine_merges = revs->dense_combined_merges = 1;
/*
* Backward compatibility wart - "diff-files -s" used to
* defeat the common diff option "-s" which asked for
* DIFF_FORMAT_NO_OUTPUT.
*/
if (revs->diffopt.output_format == DIFF_FORMAT_NO_OUTPUT)
revs->diffopt.output_format = DIFF_FORMAT_RAW;
return run_diff_files(revs, silent);
}
static void stuff_change(struct diff_options *opt,
unsigned old_mode, unsigned new_mode,
const unsigned char *old_sha1,
const unsigned char *new_sha1,
const char *old_name,
const char *new_name)
{
struct diff_filespec *one, *two;
if (memcmp(null_sha1, old_sha1, 20) &&
memcmp(null_sha1, new_sha1, 20) &&
!memcmp(old_sha1, new_sha1, 20))
return;
if (opt->reverse_diff) {
unsigned tmp;
const unsigned char *tmp_u;
const char *tmp_c;
tmp = old_mode; old_mode = new_mode; new_mode = tmp;
tmp_u = old_sha1; old_sha1 = new_sha1; new_sha1 = tmp_u;
tmp_c = old_name; old_name = new_name; new_name = tmp_c;
}
one = alloc_filespec(old_name);
two = alloc_filespec(new_name);
fill_filespec(one, old_sha1, old_mode);
fill_filespec(two, new_sha1, new_mode);
/* NEEDSWORK: shouldn't this part of diffopt??? */
diff_queue(&diff_queued_diff, one, two);
}
static int builtin_diff_b_f(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob,
const char *path)
{
/* Blob vs file in the working tree*/
struct stat st;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
if (lstat(path, &st))
die("'%s': %s", path, strerror(errno));
if (!(S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)))
die("'%s': not a regular file or symlink", path);
stuff_change(&revs->diffopt,
canon_mode(st.st_mode), canon_mode(st.st_mode),
blob[0].sha1, null_sha1,
path, path);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static int builtin_diff_blobs(struct rev_info *revs,
int argc, const char **argv,
struct blobinfo *blob)
{
/* Blobs: the arguments are reversed when setup_revisions()
* picked them up.
*/
unsigned mode = canon_mode(S_IFREG | 0644);
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
stuff_change(&revs->diffopt,
mode, mode,
blob[1].sha1, blob[0].sha1,
blob[0].name, blob[0].name);
diffcore_std(&revs->diffopt);
diff_flush(&revs->diffopt);
return 0;
}
static int builtin_diff_index(struct rev_info *revs,
int argc, const char **argv)
{
int cached = 0;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--cached"))
cached = 1;
else if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/*
* Make sure there is one revision (i.e. pending object),
* and there is no revision filtering parameters.
*/
if (!revs->pending_objects || revs->pending_objects->next ||
revs->max_count != -1 || revs->min_age != -1 ||
revs->max_age != -1)
usage(builtin_diff_usage);
return run_diff_index(revs, cached);
}
static int builtin_diff_tree(struct rev_info *revs,
int argc, const char **argv,
struct object_list *ent)
{
const unsigned char *(sha1[2]);
int swap = 1;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
/* We saw two trees, ent[0] and ent[1].
* unless ent[0] is unintesting, they are swapped
*/
if (ent[0].item->flags & UNINTERESTING)
swap = 0;
sha1[swap] = ent[0].item->sha1;
sha1[1-swap] = ent[1].item->sha1;
diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
log_tree_diff_flush(revs);
return 0;
}
static int builtin_diff_combined(struct rev_info *revs,
int argc, const char **argv,
struct object_list *ent,
int ents)
{
const unsigned char (*parent)[20];
int i;
while (1 < argc) {
const char *arg = argv[1];
if (!strcmp(arg, "--raw"))
revs->diffopt.output_format = DIFF_FORMAT_RAW;
else
usage(builtin_diff_usage);
argv++; argc--;
}
if (!revs->dense_combined_merges && !revs->combine_merges)
revs->dense_combined_merges = revs->combine_merges = 1;
parent = xmalloc(ents * sizeof(*parent));
/* Again, the revs are all reverse */
for (i = 0; i < ents; i++)
memcpy(parent + i, ent[ents - 1 - i].item->sha1, 20);
diff_tree_combined(parent[0], parent + 1, ents - 1,
revs->dense_combined_merges, revs);
return 0;
}
static void add_head(struct rev_info *revs)
{
unsigned char sha1[20];
struct object *obj;
if (get_sha1("HEAD", sha1))
return;
obj = parse_object(sha1);
if (!obj)
return;
add_object(obj, &revs->pending_objects, NULL, "HEAD");
}
int cmd_diff(int argc, const char **argv, char **envp)
{
struct rev_info rev;
struct object_list *list, ent[100];
int ents = 0, blobs = 0, paths = 0;
const char *path = NULL;
struct blobinfo blob[2];
/*
* We could get N tree-ish in the rev.pending_objects list.
* Also there could be M blobs there, and P pathspecs.
*
* N=0, M=0:
* cache vs files (diff-files)
* N=0, M=2:
* compare two random blobs. P must be zero.
* N=0, M=1, P=1:
* compare a blob with a working tree file.
*
* N=1, M=0:
* tree vs cache (diff-index --cached)
*
* N=2, M=0:
* tree vs tree (diff-tree)
*
* Other cases are errors.
*/
git_config(git_diff_config);
init_revisions(&rev);
rev.diffopt.output_format = DIFF_FORMAT_PATCH;
argc = setup_revisions(argc, argv, &rev, NULL);
/* Do we have --cached and not have a pending object, then
* default to HEAD by hand. Eek.
*/
if (!rev.pending_objects) {
int i;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--"))
break;
else if (!strcmp(arg, "--cached")) {
add_head(&rev);
break;
}
}
}
for (list = rev.pending_objects; list; list = list->next) {
struct object *obj = list->item;
const char *name = list->name;
int flags = (obj->flags & UNINTERESTING);
if (!obj->parsed)
obj = parse_object(obj->sha1);
obj = deref_tag(obj, NULL, 0);
if (!obj)
die("invalid object '%s' given.", name);
if (!strcmp(obj->type, commit_type))
obj = &((struct commit *)obj)->tree->object;
if (!strcmp(obj->type, tree_type)) {
if (ARRAY_SIZE(ent) <= ents)
die("more than %d trees given: '%s'",
(int) ARRAY_SIZE(ent), name);
obj->flags |= flags;
ent[ents].item = obj;
ent[ents].name = name;
ents++;
continue;
}
if (!strcmp(obj->type, blob_type)) {
if (2 <= blobs)
die("more than two blobs given: '%s'", name);
memcpy(blob[blobs].sha1, obj->sha1, 20);
blob[blobs].name = name;
blobs++;
continue;
}
die("unhandled object '%s' given.", name);
}
if (rev.prune_data) {
const char **pathspec = rev.prune_data;
while (*pathspec) {
if (!path)
path = *pathspec;
paths++;
pathspec++;
}
}
/*
* Now, do the arguments look reasonable?
*/
if (!ents) {
switch (blobs) {
case 0:
return builtin_diff_files(&rev, argc, argv);
break;
case 1:
if (paths != 1)
usage(builtin_diff_usage);
return builtin_diff_b_f(&rev, argc, argv, blob, path);
break;
case 2:
if (paths)
usage(builtin_diff_usage);
return builtin_diff_blobs(&rev, argc, argv, blob);
break;
default:
usage(builtin_diff_usage);
}
}
else if (blobs)
usage(builtin_diff_usage);
else if (ents == 1)
return builtin_diff_index(&rev, argc, argv);
else if (ents == 2)
return builtin_diff_tree(&rev, argc, argv, ent);
else
return builtin_diff_combined(&rev, argc, argv, ent, ents);
usage(builtin_diff_usage);
}

902
builtin-grep.c Normal file
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@ -0,0 +1,902 @@
/*
* Builtin "git grep"
*
* Copyright (c) 2006 Junio C Hamano
*/
#include "cache.h"
#include "blob.h"
#include "tree.h"
#include "commit.h"
#include "tag.h"
#include "tree-walk.h"
#include "builtin.h"
#include <regex.h>
#include <fnmatch.h>
#include <sys/wait.h>
/*
* git grep pathspecs are somewhat different from diff-tree pathspecs;
* pathname wildcards are allowed.
*/
static int pathspec_matches(const char **paths, const char *name)
{
int namelen, i;
if (!paths || !*paths)
return 1;
namelen = strlen(name);
for (i = 0; paths[i]; i++) {
const char *match = paths[i];
int matchlen = strlen(match);
const char *cp, *meta;
if ((matchlen <= namelen) &&
!strncmp(name, match, matchlen) &&
(match[matchlen-1] == '/' ||
name[matchlen] == '\0' || name[matchlen] == '/'))
return 1;
if (!fnmatch(match, name, 0))
return 1;
if (name[namelen-1] != '/')
continue;
/* We are being asked if the directory ("name") is worth
* descending into.
*
* Find the longest leading directory name that does
* not have metacharacter in the pathspec; the name
* we are looking at must overlap with that directory.
*/
for (cp = match, meta = NULL; cp - match < matchlen; cp++) {
char ch = *cp;
if (ch == '*' || ch == '[' || ch == '?') {
meta = cp;
break;
}
}
if (!meta)
meta = cp; /* fully literal */
if (namelen <= meta - match) {
/* Looking at "Documentation/" and
* the pattern says "Documentation/howto/", or
* "Documentation/diff*.txt". The name we
* have should match prefix.
*/
if (!memcmp(match, name, namelen))
return 1;
continue;
}
if (meta - match < namelen) {
/* Looking at "Documentation/howto/" and
* the pattern says "Documentation/h*";
* match up to "Do.../h"; this avoids descending
* into "Documentation/technical/".
*/
if (!memcmp(match, name, meta - match))
return 1;
continue;
}
}
return 0;
}
struct grep_pat {
struct grep_pat *next;
const char *origin;
int no;
const char *pattern;
regex_t regexp;
};
struct grep_opt {
struct grep_pat *pattern_list;
struct grep_pat **pattern_tail;
regex_t regexp;
unsigned linenum:1;
unsigned invert:1;
unsigned name_only:1;
unsigned unmatch_name_only:1;
unsigned count:1;
unsigned word_regexp:1;
unsigned fixed:1;
#define GREP_BINARY_DEFAULT 0
#define GREP_BINARY_NOMATCH 1
#define GREP_BINARY_TEXT 2
unsigned binary:2;
int regflags;
unsigned pre_context;
unsigned post_context;
};
static void add_pattern(struct grep_opt *opt, const char *pat,
const char *origin, int no)
{
struct grep_pat *p = xcalloc(1, sizeof(*p));
p->pattern = pat;
p->origin = origin;
p->no = no;
*opt->pattern_tail = p;
opt->pattern_tail = &p->next;
p->next = NULL;
}
static void compile_patterns(struct grep_opt *opt)
{
struct grep_pat *p;
for (p = opt->pattern_list; p; p = p->next) {
int err = regcomp(&p->regexp, p->pattern, opt->regflags);
if (err) {
char errbuf[1024];
char where[1024];
if (p->no)
sprintf(where, "In '%s' at %d, ",
p->origin, p->no);
else if (p->origin)
sprintf(where, "%s, ", p->origin);
else
where[0] = 0;
regerror(err, &p->regexp, errbuf, 1024);
regfree(&p->regexp);
die("%s'%s': %s", where, p->pattern, errbuf);
}
}
}
static char *end_of_line(char *cp, unsigned long *left)
{
unsigned long l = *left;
while (l && *cp != '\n') {
l--;
cp++;
}
*left = l;
return cp;
}
static int word_char(char ch)
{
return isalnum(ch) || ch == '_';
}
static void show_line(struct grep_opt *opt, const char *bol, const char *eol,
const char *name, unsigned lno, char sign)
{
printf("%s%c", name, sign);
if (opt->linenum)
printf("%d%c", lno, sign);
printf("%.*s\n", (int)(eol-bol), bol);
}
/*
* NEEDSWORK: share code with diff.c
*/
#define FIRST_FEW_BYTES 8000
static int buffer_is_binary(const char *ptr, unsigned long size)
{
if (FIRST_FEW_BYTES < size)
size = FIRST_FEW_BYTES;
if (memchr(ptr, 0, size))
return 1;
return 0;
}
static int fixmatch(const char *pattern, char *line, regmatch_t *match)
{
char *hit = strstr(line, pattern);
if (!hit) {
match->rm_so = match->rm_eo = -1;
return REG_NOMATCH;
}
else {
match->rm_so = hit - line;
match->rm_eo = match->rm_so + strlen(pattern);
return 0;
}
}
static int grep_buffer(struct grep_opt *opt, const char *name,
char *buf, unsigned long size)
{
char *bol = buf;
unsigned long left = size;
unsigned lno = 1;
struct pre_context_line {
char *bol;
char *eol;
} *prev = NULL, *pcl;
unsigned last_hit = 0;
unsigned last_shown = 0;
int binary_match_only = 0;
const char *hunk_mark = "";
unsigned count = 0;
if (buffer_is_binary(buf, size)) {
switch (opt->binary) {
case GREP_BINARY_DEFAULT:
binary_match_only = 1;
break;
case GREP_BINARY_NOMATCH:
return 0; /* Assume unmatch */
break;
default:
break;
}
}
if (opt->pre_context)
prev = xcalloc(opt->pre_context, sizeof(*prev));
if (opt->pre_context || opt->post_context)
hunk_mark = "--\n";
while (left) {
regmatch_t pmatch[10];
char *eol, ch;
int hit = 0;
struct grep_pat *p;
eol = end_of_line(bol, &left);
ch = *eol;
*eol = 0;
for (p = opt->pattern_list; p; p = p->next) {
if (!opt->fixed) {
regex_t *exp = &p->regexp;
hit = !regexec(exp, bol, ARRAY_SIZE(pmatch),
pmatch, 0);
}
else {
hit = !fixmatch(p->pattern, bol, pmatch);
}
if (hit && opt->word_regexp) {
/* Match beginning must be either
* beginning of the line, or at word
* boundary (i.e. the last char must
* not be alnum or underscore).
*/
if ((pmatch[0].rm_so < 0) ||
(eol - bol) <= pmatch[0].rm_so ||
(pmatch[0].rm_eo < 0) ||
(eol - bol) < pmatch[0].rm_eo)
die("regexp returned nonsense");
if (pmatch[0].rm_so != 0 &&
word_char(bol[pmatch[0].rm_so-1]))
hit = 0;
if (pmatch[0].rm_eo != (eol-bol) &&
word_char(bol[pmatch[0].rm_eo]))
hit = 0;
}
if (hit)
break;
}
/* "grep -v -e foo -e bla" should list lines
* that do not have either, so inversion should
* be done outside.
*/
if (opt->invert)
hit = !hit;
if (opt->unmatch_name_only) {
if (hit)
return 0;
goto next_line;
}
if (hit) {
count++;
if (binary_match_only) {
printf("Binary file %s matches\n", name);
return 1;
}
if (opt->name_only) {
printf("%s\n", name);
return 1;
}
/* Hit at this line. If we haven't shown the
* pre-context lines, we would need to show them.
* When asked to do "count", this still show
* the context which is nonsense, but the user
* deserves to get that ;-).
*/
if (opt->pre_context) {
unsigned from;
if (opt->pre_context < lno)
from = lno - opt->pre_context;
else
from = 1;
if (from <= last_shown)
from = last_shown + 1;
if (last_shown && from != last_shown + 1)
printf(hunk_mark);
while (from < lno) {
pcl = &prev[lno-from-1];
show_line(opt, pcl->bol, pcl->eol,
name, from, '-');
from++;
}
last_shown = lno-1;
}
if (last_shown && lno != last_shown + 1)
printf(hunk_mark);
if (!opt->count)
show_line(opt, bol, eol, name, lno, ':');
last_shown = last_hit = lno;
}
else if (last_hit &&
lno <= last_hit + opt->post_context) {
/* If the last hit is within the post context,
* we need to show this line.
*/
if (last_shown && lno != last_shown + 1)
printf(hunk_mark);
show_line(opt, bol, eol, name, lno, '-');
last_shown = lno;
}
if (opt->pre_context) {
memmove(prev+1, prev,
(opt->pre_context-1) * sizeof(*prev));
prev->bol = bol;
prev->eol = eol;
}
next_line:
*eol = ch;
bol = eol + 1;
if (!left)
break;
left--;
lno++;
}
if (opt->unmatch_name_only) {
/* We did not see any hit, so we want to show this */
printf("%s\n", name);
return 1;
}
/* NEEDSWORK:
* The real "grep -c foo *.c" gives many "bar.c:0" lines,
* which feels mostly useless but sometimes useful. Maybe
* make it another option? For now suppress them.
*/
if (opt->count && count)
printf("%s:%u\n", name, count);
return !!last_hit;
}
static int grep_sha1(struct grep_opt *opt, const unsigned char *sha1, const char *name)
{
unsigned long size;
char *data;
char type[20];
int hit;
data = read_sha1_file(sha1, type, &size);
if (!data) {
error("'%s': unable to read %s", name, sha1_to_hex(sha1));
return 0;
}
hit = grep_buffer(opt, name, data, size);
free(data);
return hit;
}
static int grep_file(struct grep_opt *opt, const char *filename)
{
struct stat st;
int i;
char *data;
if (lstat(filename, &st) < 0) {
err_ret:
if (errno != ENOENT)
error("'%s': %s", filename, strerror(errno));
return 0;
}
if (!st.st_size)
return 0; /* empty file -- no grep hit */
if (!S_ISREG(st.st_mode))
return 0;
i = open(filename, O_RDONLY);
if (i < 0)
goto err_ret;
data = xmalloc(st.st_size + 1);
if (st.st_size != xread(i, data, st.st_size)) {
error("'%s': short read %s", filename, strerror(errno));
close(i);
free(data);
return 0;
}
close(i);
i = grep_buffer(opt, filename, data, st.st_size);
free(data);
return i;
}
static int exec_grep(int argc, const char **argv)
{
pid_t pid;
int status;
argv[argc] = NULL;
pid = fork();
if (pid < 0)
return pid;
if (!pid) {
execvp("grep", (char **) argv);
exit(255);
}
while (waitpid(pid, &status, 0) < 0) {
if (errno == EINTR)
continue;
return -1;
}
if (WIFEXITED(status)) {
if (!WEXITSTATUS(status))
return 1;
return 0;
}
return -1;
}
#define MAXARGS 1000
#define ARGBUF 4096
#define push_arg(a) do { \
if (nr < MAXARGS) argv[nr++] = (a); \
else die("maximum number of args exceeded"); \
} while (0)
static int external_grep(struct grep_opt *opt, const char **paths, int cached)
{
int i, nr, argc, hit, len;
const char *argv[MAXARGS+1];
char randarg[ARGBUF];
char *argptr = randarg;
struct grep_pat *p;
len = nr = 0;
push_arg("grep");
if (opt->fixed)
push_arg("-F");
if (opt->linenum)
push_arg("-n");
if (opt->regflags & REG_EXTENDED)
push_arg("-E");
if (opt->word_regexp)
push_arg("-w");
if (opt->name_only)
push_arg("-l");
if (opt->unmatch_name_only)
push_arg("-L");
if (opt->count)
push_arg("-c");
if (opt->post_context || opt->pre_context) {
if (opt->post_context != opt->pre_context) {
if (opt->pre_context) {
push_arg("-B");
len += snprintf(argptr, sizeof(randarg)-len,
"%u", opt->pre_context);
if (sizeof(randarg) <= len)
die("maximum length of args exceeded");
push_arg(argptr);
argptr += len;
}
if (opt->post_context) {
push_arg("-A");
len += snprintf(argptr, sizeof(randarg)-len,
"%u", opt->post_context);
if (sizeof(randarg) <= len)
die("maximum length of args exceeded");
push_arg(argptr);
argptr += len;
}
}
else {
push_arg("-C");
len += snprintf(argptr, sizeof(randarg)-len,
"%u", opt->post_context);
if (sizeof(randarg) <= len)
die("maximum length of args exceeded");
push_arg(argptr);
argptr += len;
}
}
for (p = opt->pattern_list; p; p = p->next) {
push_arg("-e");
push_arg(p->pattern);
}
/*
* To make sure we get the header printed out when we want it,
* add /dev/null to the paths to grep. This is unnecessary
* (and wrong) with "-l" or "-L", which always print out the
* name anyway.
*
* GNU grep has "-H", but this is portable.
*/
if (!opt->name_only && !opt->unmatch_name_only)
push_arg("/dev/null");
hit = 0;
argc = nr;
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
const char *name;
if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
continue;
if (!pathspec_matches(paths, ce->name))
continue;
name = ce->name;
if (name[0] == '-') {
int len = ce_namelen(ce);
name = xmalloc(len + 3);
memcpy(name, "./", 2);
memcpy(name + 2, ce->name, len + 1);
}
argv[argc++] = name;
if (argc < MAXARGS)
continue;
hit += exec_grep(argc, argv);
argc = nr;
}
if (argc > nr)
hit += exec_grep(argc, argv);
return 0;
}
static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
{
int hit = 0;
int nr;
read_cache();
#ifdef __unix__
/*
* Use the external "grep" command for the case where
* we grep through the checked-out files. It tends to
* be a lot more optimized
*/
if (!cached) {
hit = external_grep(opt, paths, cached);
if (hit >= 0)
return hit;
}
#endif
for (nr = 0; nr < active_nr; nr++) {
struct cache_entry *ce = active_cache[nr];
if (ce_stage(ce) || !S_ISREG(ntohl(ce->ce_mode)))
continue;
if (!pathspec_matches(paths, ce->name))
continue;
if (cached)
hit |= grep_sha1(opt, ce->sha1, ce->name);
else
hit |= grep_file(opt, ce->name);
}
return hit;
}
static int grep_tree(struct grep_opt *opt, const char **paths,
struct tree_desc *tree,
const char *tree_name, const char *base)
{
unsigned mode;
int len;
int hit = 0;
const char *path;
const unsigned char *sha1;
char *down;
char *path_buf = xmalloc(PATH_MAX + strlen(tree_name) + 100);
if (tree_name[0]) {
int offset = sprintf(path_buf, "%s:", tree_name);
down = path_buf + offset;
strcat(down, base);
}
else {
down = path_buf;
strcpy(down, base);
}
len = strlen(path_buf);
while (tree->size) {
int pathlen;
sha1 = tree_entry_extract(tree, &path, &mode);
pathlen = strlen(path);
strcpy(path_buf + len, path);
if (S_ISDIR(mode))
/* Match "abc/" against pathspec to
* decide if we want to descend into "abc"
* directory.
*/
strcpy(path_buf + len + pathlen, "/");
if (!pathspec_matches(paths, down))
;
else if (S_ISREG(mode))
hit |= grep_sha1(opt, sha1, path_buf);
else if (S_ISDIR(mode)) {
char type[20];
struct tree_desc sub;
void *data;
data = read_sha1_file(sha1, type, &sub.size);
if (!data)
die("unable to read tree (%s)",
sha1_to_hex(sha1));
sub.buf = data;
hit |= grep_tree(opt, paths, &sub, tree_name, down);
free(data);
}
update_tree_entry(tree);
}
return hit;
}
static int grep_object(struct grep_opt *opt, const char **paths,
struct object *obj, const char *name)
{
if (!strcmp(obj->type, blob_type))
return grep_sha1(opt, obj->sha1, name);
if (!strcmp(obj->type, commit_type) ||
!strcmp(obj->type, tree_type)) {
struct tree_desc tree;
void *data;
int hit;
data = read_object_with_reference(obj->sha1, tree_type,
&tree.size, NULL);
if (!data)
die("unable to read tree (%s)", sha1_to_hex(obj->sha1));
tree.buf = data;
hit = grep_tree(opt, paths, &tree, name, "");
free(data);
return hit;
}
die("unable to grep from object of type %s", obj->type);
}
static const char builtin_grep_usage[] =
"git-grep <option>* <rev>* [-e] <pattern> [<path>...]";
int cmd_grep(int argc, const char **argv, char **envp)
{
int hit = 0;
int cached = 0;
int seen_dashdash = 0;
struct grep_opt opt;
struct object_list *list, **tail, *object_list = NULL;
const char *prefix = setup_git_directory();
const char **paths = NULL;
int i;
memset(&opt, 0, sizeof(opt));
opt.pattern_tail = &opt.pattern_list;
opt.regflags = REG_NEWLINE;
/*
* If there is no -- then the paths must exist in the working
* tree. If there is no explicit pattern specified with -e or
* -f, we take the first unrecognized non option to be the
* pattern, but then what follows it must be zero or more
* valid refs up to the -- (if exists), and then existing
* paths. If there is an explicit pattern, then the first
* unrecocnized non option is the beginning of the refs list
* that continues up to the -- (if exists), and then paths.
*/
tail = &object_list;
while (1 < argc) {
const char *arg = argv[1];
argc--; argv++;
if (!strcmp("--cached", arg)) {
cached = 1;
continue;
}
if (!strcmp("-a", arg) ||
!strcmp("--text", arg)) {
opt.binary = GREP_BINARY_TEXT;
continue;
}
if (!strcmp("-i", arg) ||
!strcmp("--ignore-case", arg)) {
opt.regflags |= REG_ICASE;
continue;
}
if (!strcmp("-I", arg)) {
opt.binary = GREP_BINARY_NOMATCH;
continue;
}
if (!strcmp("-v", arg) ||
!strcmp("--invert-match", arg)) {
opt.invert = 1;
continue;
}
if (!strcmp("-E", arg) ||
!strcmp("--extended-regexp", arg)) {
opt.regflags |= REG_EXTENDED;
continue;
}
if (!strcmp("-F", arg) ||
!strcmp("--fixed-strings", arg)) {
opt.fixed = 1;
continue;
}
if (!strcmp("-G", arg) ||
!strcmp("--basic-regexp", arg)) {
opt.regflags &= ~REG_EXTENDED;
continue;
}
if (!strcmp("-n", arg)) {
opt.linenum = 1;
continue;
}
if (!strcmp("-H", arg)) {
/* We always show the pathname, so this
* is a noop.
*/
continue;
}
if (!strcmp("-l", arg) ||
!strcmp("--files-with-matches", arg)) {
opt.name_only = 1;
continue;
}
if (!strcmp("-L", arg) ||
!strcmp("--files-without-match", arg)) {
opt.unmatch_name_only = 1;
continue;
}
if (!strcmp("-c", arg) ||
!strcmp("--count", arg)) {
opt.count = 1;
continue;
}
if (!strcmp("-w", arg) ||
!strcmp("--word-regexp", arg)) {
opt.word_regexp = 1;
continue;
}
if (!strncmp("-A", arg, 2) ||
!strncmp("-B", arg, 2) ||
!strncmp("-C", arg, 2) ||
(arg[0] == '-' && '1' <= arg[1] && arg[1] <= '9')) {
unsigned num;
const char *scan;
switch (arg[1]) {
case 'A': case 'B': case 'C':
if (!arg[2]) {
if (argc <= 1)
usage(builtin_grep_usage);
scan = *++argv;
argc--;
}
else
scan = arg + 2;
break;
default:
scan = arg + 1;
break;
}
if (sscanf(scan, "%u", &num) != 1)
usage(builtin_grep_usage);
switch (arg[1]) {
case 'A':
opt.post_context = num;
break;
default:
case 'C':
opt.post_context = num;
case 'B':
opt.pre_context = num;
break;
}
continue;
}
if (!strcmp("-f", arg)) {
FILE *patterns;
int lno = 0;
char buf[1024];
if (argc <= 1)
usage(builtin_grep_usage);
patterns = fopen(argv[1], "r");
if (!patterns)
die("'%s': %s", argv[1], strerror(errno));
while (fgets(buf, sizeof(buf), patterns)) {
int len = strlen(buf);
if (buf[len-1] == '\n')
buf[len-1] = 0;
/* ignore empty line like grep does */
if (!buf[0])
continue;
add_pattern(&opt, strdup(buf), argv[1], ++lno);
}
fclose(patterns);
argv++;
argc--;
continue;
}
if (!strcmp("-e", arg)) {
if (1 < argc) {
add_pattern(&opt, argv[1], "-e option", 0);
argv++;
argc--;
continue;
}
usage(builtin_grep_usage);
}
if (!strcmp("--", arg))
break;
if (*arg == '-')
usage(builtin_grep_usage);
/* First unrecognized non-option token */
if (!opt.pattern_list) {
add_pattern(&opt, arg, "command line", 0);
break;
}
else {
/* We are looking at the first path or rev;
* it is found at argv[1] after leaving the
* loop.
*/
argc++; argv--;
break;
}
}
if (!opt.pattern_list)
die("no pattern given.");
if ((opt.regflags != REG_NEWLINE) && opt.fixed)
die("cannot mix --fixed-strings and regexp");
if (!opt.fixed)
compile_patterns(&opt);
/* Check revs and then paths */
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
unsigned char sha1[20];
/* Is it a rev? */
if (!get_sha1(arg, sha1)) {
struct object *object = parse_object(sha1);
struct object_list *elem;
if (!object)
die("bad object %s", arg);
elem = object_list_insert(object, tail);
elem->name = arg;
tail = &elem->next;
continue;
}
if (!strcmp(arg, "--")) {
i++;
seen_dashdash = 1;
}
break;
}
/* The rest are paths */
if (!seen_dashdash) {
int j;
for (j = i; j < argc; j++)
verify_filename(prefix, argv[j]);
}
if (i < argc)
paths = get_pathspec(prefix, argv + i);
else if (prefix) {
paths = xcalloc(2, sizeof(const char *));
paths[0] = prefix;
paths[1] = NULL;
}
if (!object_list)
return !grep_cache(&opt, paths, cached);
if (cached)
die("both --cached and trees are given.");
for (list = object_list; list; list = list->next) {
struct object *real_obj;
real_obj = deref_tag(list->item, NULL, 0);
if (grep_object(&opt, paths, real_obj, list->name))
hit = 1;
}
return !hit;
}

1
builtin-help.c
View File

@ -3,6 +3,7 @@
*
* Builtin help-related commands (help, usage, version)
*/
#include <sys/ioctl.h>
#include "cache.h"
#include "builtin.h"
#include "exec_cmd.h"

12
init-db.c → builtin-init-db.c
View File

@ -4,6 +4,7 @@
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
#include "builtin.h"
#ifndef DEFAULT_GIT_TEMPLATE_DIR
#define DEFAULT_GIT_TEMPLATE_DIR "/usr/share/git-core/templates/"
@ -116,7 +117,7 @@ static void copy_templates_1(char *path, int baselen,
}
}
static void copy_templates(const char *git_dir, int len, char *template_dir)
static void copy_templates(const char *git_dir, int len, const char *template_dir)
{
char path[PATH_MAX];
char template_path[PATH_MAX];
@ -163,7 +164,7 @@ static void copy_templates(const char *git_dir, int len, char *template_dir)
closedir(dir);
}
static void create_default_files(const char *git_dir, char *template_path)
static void create_default_files(const char *git_dir, const char *template_path)
{
unsigned len = strlen(git_dir);
static char path[PATH_MAX];
@ -234,15 +235,16 @@ static const char init_db_usage[] =
* On the other hand, it might just make lookup slower and messier. You
* be the judge. The default case is to have one DB per managed directory.
*/
int main(int argc, char **argv)
int cmd_init_db(int argc, const char **argv, char **envp)
{
const char *git_dir;
const char *sha1_dir;
char *path, *template_dir = NULL;
const char *template_dir = NULL;
char *path;
int len, i;
for (i = 1; i < argc; i++, argv++) {
char *arg = argv[1];
const char *arg = argv[1];
if (!strncmp(arg, "--template=", 11))
template_dir = arg+11;
else if (!strcmp(arg, "--shared"))

7
builtin-log.c
View File

@ -19,6 +19,13 @@ static int cmd_log_wc(int argc, const char **argv, char **envp,
rev->commit_format = CMIT_FMT_DEFAULT;
rev->verbose_header = 1;
argc = setup_revisions(argc, argv, rev, "HEAD");
if (rev->always_show_header) {
if (rev->diffopt.pickaxe || rev->diffopt.filter) {
rev->always_show_header = 0;
if (rev->diffopt.output_format == DIFF_FORMAT_RAW)
rev->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT;
}
}
if (argc > 1)
die("unrecognized argument: %s", argv[1]);

312
builtin-push.c Normal file
View File

@ -0,0 +1,312 @@
/*
* "git push"
*/
#include "cache.h"
#include "refs.h"
#include "run-command.h"
#include "builtin.h"
#define MAX_URI (16)
static const char push_usage[] = "git push [--all] [--tags] [--force] <repository> [<refspec>...]";
static int all = 0, tags = 0, force = 0, thin = 1;
static const char *execute = NULL;
#define BUF_SIZE (2084)
static char buffer[BUF_SIZE];
static const char **refspec = NULL;
static int refspec_nr = 0;
static void add_refspec(const char *ref)
{
int nr = refspec_nr + 1;
refspec = xrealloc(refspec, nr * sizeof(char *));
refspec[nr-1] = ref;
refspec_nr = nr;
}
static int expand_one_ref(const char *ref, const unsigned char *sha1)
{
/* Ignore the "refs/" at the beginning of the refname */
ref += 5;
if (strncmp(ref, "tags/", 5))
return 0;
add_refspec(strdup(ref));
return 0;
}
static void expand_refspecs(void)
{
if (all) {
if (refspec_nr)
die("cannot mix '--all' and a refspec");
/*
* No need to expand "--all" - we'll just use
* the "--all" flag to send-pack
*/
return;
}
if (!tags)
return;
for_each_ref(expand_one_ref);
}
static void set_refspecs(const char **refs, int nr)
{
if (nr) {
size_t bytes = nr * sizeof(char *);
refspec = xrealloc(refspec, bytes);
memcpy(refspec, refs, bytes);
refspec_nr = nr;
}
expand_refspecs();
}
static int get_remotes_uri(const char *repo, const char *uri[MAX_URI])
{
int n = 0;
FILE *f = fopen(git_path("remotes/%s", repo), "r");
int has_explicit_refspec = refspec_nr || all || tags;
if (!f)
return -1;
while (fgets(buffer, BUF_SIZE, f)) {
int is_refspec;
char *s, *p;
if (!strncmp("URL: ", buffer, 5)) {
is_refspec = 0;
s = buffer + 5;
} else if (!strncmp("Push: ", buffer, 6)) {
is_refspec = 1;
s = buffer + 6;
} else
continue;
/* Remove whitespace at the head.. */
while (isspace(*s))
s++;
if (!*s)
continue;
/* ..and at the end */
p = s + strlen(s);
while (isspace(p[-1]))
*--p = 0;
if (!is_refspec) {
if (n < MAX_URI)
uri[n++] = strdup(s);
else
error("more than %d URL's specified, ignoreing the rest", MAX_URI);
}
else if (is_refspec && !has_explicit_refspec)
add_refspec(strdup(s));
}
fclose(f);
if (!n)
die("remote '%s' has no URL", repo);
return n;
}
static const char **config_uri;
static const char *config_repo;
static int config_repo_len;
static int config_current_uri;
static int config_get_refspecs;
static int get_remote_config(const char* key, const char* value)
{
if (!strncmp(key, "remote.", 7) &&
!strncmp(key + 7, config_repo, config_repo_len)) {
if (!strcmp(key + 7 + config_repo_len, ".url")) {
if (config_current_uri < MAX_URI)
config_uri[config_current_uri++] = strdup(value);
else
error("more than %d URL's specified, ignoring the rest", MAX_URI);
}
else if (config_get_refspecs &&
!strcmp(key + 7 + config_repo_len, ".push"))
add_refspec(strdup(value));
}
return 0;
}
static int get_config_remotes_uri(const char *repo, const char *uri[MAX_URI])
{
config_repo_len = strlen(repo);
config_repo = repo;
config_current_uri = 0;
config_uri = uri;
config_get_refspecs = !(refspec_nr || all || tags);
git_config(get_remote_config);
return config_current_uri;
}
static int get_branches_uri(const char *repo, const char *uri[MAX_URI])
{
const char *slash = strchr(repo, '/');
int n = slash ? slash - repo : 1000;
FILE *f = fopen(git_path("branches/%.*s", n, repo), "r");
char *s, *p;
int len;
if (!f)
return 0;
s = fgets(buffer, BUF_SIZE, f);
fclose(f);
if (!s)
return 0;
while (isspace(*s))
s++;
if (!*s)
return 0;
p = s + strlen(s);
while (isspace(p[-1]))
*--p = 0;
len = p - s;
if (slash)
len += strlen(slash);
p = xmalloc(len + 1);
strcpy(p, s);
if (slash)
strcat(p, slash);
uri[0] = p;
return 1;
}
/*
* Read remotes and branches file, fill the push target URI
* list. If there is no command line refspecs, read Push: lines
* to set up the *refspec list as well.
* return the number of push target URIs
*/
static int read_config(const char *repo, const char *uri[MAX_URI])
{
int n;
if (*repo != '/') {
n = get_remotes_uri(repo, uri);
if (n > 0)
return n;
n = get_config_remotes_uri(repo, uri);
if (n > 0)
return n;
n = get_branches_uri(repo, uri);
if (n > 0)
return n;
}
uri[0] = repo;
return 1;
}
static int do_push(const char *repo)
{
const char *uri[MAX_URI];
int i, n;
int remote;
const char **argv;
int argc;
n = read_config(repo, uri);
if (n <= 0)
die("bad repository '%s'", repo);
argv = xmalloc((refspec_nr + 10) * sizeof(char *));
argv[0] = "dummy-send-pack";
argc = 1;
if (all)
argv[argc++] = "--all";
if (force)
argv[argc++] = "--force";
if (execute)
argv[argc++] = execute;
if (thin)
argv[argc++] = "--thin";
remote = argc;
argv[argc++] = "dummy-remote";
while (refspec_nr--)
argv[argc++] = *refspec++;
argv[argc] = NULL;
for (i = 0; i < n; i++) {
int error;
const char *dest = uri[i];
const char *sender = "git-send-pack";
if (!strncmp(dest, "http://", 7) ||
!strncmp(dest, "https://", 8))
sender = "git-http-push";
argv[0] = sender;
argv[remote] = dest;
error = run_command_v(argc, argv);
if (!error)
continue;
switch (error) {
case -ERR_RUN_COMMAND_FORK:
die("unable to fork for %s", sender);
case -ERR_RUN_COMMAND_EXEC:
die("unable to exec %s", sender);
case -ERR_RUN_COMMAND_WAITPID:
case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
die("%s died with strange error", sender);
default:
return -error;
}
}
return 0;
}
int cmd_push(int argc, const char **argv, char **envp)
{
int i;
const char *repo = "origin"; // default repository
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (arg[0] != '-') {
repo = arg;
i++;
break;
}
if (!strcmp(arg, "--all")) {
all = 1;
continue;
}
if (!strcmp(arg, "--tags")) {
tags = 1;
continue;
}
if (!strcmp(arg, "--force")) {
force = 1;
continue;
}
if (!strcmp(arg, "--thin")) {
thin = 1;
continue;
}
if (!strcmp(arg, "--no-thin")) {
thin = 0;
continue;
}
if (!strncmp(arg, "--exec=", 7)) {
execute = arg;
continue;
}
usage(push_usage);
}
set_refspecs(argv + i, argc - i);
return do_push(repo);
}

5
rev-list.c → builtin-rev-list.c
View File

@ -7,6 +7,7 @@
#include "tree-walk.h"
#include "diff.h"
#include "revision.h"
#include "builtin.h"
/* bits #0-15 in revision.h */
@ -36,7 +37,7 @@ static const char rev_list_usage[] =
" --bisect"
;
struct rev_info revs;
static struct rev_info revs;
static int bisect_list = 0;
static int show_timestamp = 0;
@ -291,7 +292,7 @@ static void mark_edges_uninteresting(struct commit_list *list)
}
}
int main(int argc, const char **argv)
int cmd_rev_list(int argc, const char **argv, char **envp)
{
struct commit_list *list;
int i;

152
builtin-rm.c Normal file
View File

@ -0,0 +1,152 @@
/*
* "git rm" builtin command
*
* Copyright (C) Linus Torvalds 2006
*/
#include "cache.h"
#include "builtin.h"
#include "dir.h"
#include "cache-tree.h"
static const char builtin_rm_usage[] =
"git-rm [-n] [-v] [-f] <filepattern>...";
static struct {
int nr, alloc;
const char **name;
} list;
static void add_list(const char *name)
{
if (list.nr >= list.alloc) {
list.alloc = alloc_nr(list.alloc);
list.name = xrealloc(list.name, list.alloc * sizeof(const char *));
}
list.name[list.nr++] = name;
}
static int remove_file(const char *name)
{
int ret;
char *slash;
ret = unlink(name);
if (!ret && (slash = strrchr(name, '/'))) {
char *n = strdup(name);
do {
n[slash - name] = 0;
name = n;
} while (!rmdir(name) && (slash = strrchr(name, '/')));
}
return ret;
}
static struct cache_file cache_file;
int cmd_rm(int argc, const char **argv, char **envp)
{
int i, newfd;
int verbose = 0, show_only = 0, force = 0;
const char *prefix = setup_git_directory();
const char **pathspec;
char *seen;
git_config(git_default_config);
newfd = hold_index_file_for_update(&cache_file, get_index_file());
if (newfd < 0)
die("unable to create new index file");
if (read_cache() < 0)
die("index file corrupt");
for (i = 1 ; i < argc ; i++) {
const char *arg = argv[i];
if (*arg != '-')
break;
if (!strcmp(arg, "--")) {
i++;
break;
}
if (!strcmp(arg, "-n")) {
show_only = 1;
continue;
}
if (!strcmp(arg, "-v")) {
verbose = 1;
continue;
}
if (!strcmp(arg, "-f")) {
force = 1;
continue;
}
die(builtin_rm_usage);
}
pathspec = get_pathspec(prefix, argv + i);
seen = NULL;
if (pathspec) {
for (i = 0; pathspec[i] ; i++)
/* nothing */;
seen = xmalloc(i);
memset(seen, 0, i);
}
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
continue;
add_list(ce->name);
}
if (pathspec) {
const char *match;
for (i = 0; (match = pathspec[i]) != NULL ; i++) {
if (*match && !seen[i])
die("pathspec '%s' did not match any files", match);
}
}
/*
* First remove the names from the index: we won't commit
* the index unless all of them succeed
*/
for (i = 0; i < list.nr; i++) {
const char *path = list.name[i];
printf("rm '%s'\n", path);
if (remove_file_from_cache(path))
die("git rm: unable to remove %s", path);
cache_tree_invalidate_path(active_cache_tree, path);
}
/*
* Then, if we used "-f", remove the filenames from the
* workspace. If we fail to remove the first one, we
* abort the "git rm" (but once we've successfully removed
* any file at all, we'll go ahead and commit to it all:
* by then we've already committed ourself and can't fail
* in the middle)
*/
if (force) {
int removed = 0;
for (i = 0; i < list.nr; i++) {
const char *path = list.name[i];
if (!remove_file(path)) {
removed = 1;
continue;
}
if (!removed)
die("git rm: %s: %s", path, strerror(errno));
}
}
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_index_file(&cache_file))
die("Unable to write new index file");
}
return 0;
}

10
builtin.h
View File

@ -19,5 +19,15 @@ extern int cmd_version(int argc, const char **argv, char **envp);
extern int cmd_whatchanged(int argc, const char **argv, char **envp);
extern int cmd_show(int argc, const char **argv, char **envp);
extern int cmd_log(int argc, const char **argv, char **envp);
extern int cmd_diff(int argc, const char **argv, char **envp);
extern int cmd_count_objects(int argc, const char **argv, char **envp);
extern int cmd_push(int argc, const char **argv, char **envp);
extern int cmd_grep(int argc, const char **argv, char **envp);
extern int cmd_rm(int argc, const char **argv, char **envp);
extern int cmd_add(int argc, const char **argv, char **envp);
extern int cmd_rev_list(int argc, const char **argv, char **envp);
extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
extern int cmd_init_db(int argc, const char **argv, char **envp);
#endif

14
cache.h
View File

@ -136,12 +136,14 @@ extern const char *setup_git_directory(void);
extern const char *prefix_path(const char *prefix, int len, const char *path);
extern const char *prefix_filename(const char *prefix, int len, const char *path);
extern void verify_filename(const char *prefix, const char *name);
extern void verify_non_filename(const char *prefix, const char *name);
#define alloc_nr(x) (((x)+16)*3/2)
/* Initialize and use the cache information */
extern int read_cache(void);
extern int write_cache(int newfd, struct cache_entry **cache, int entries);
extern int verify_path(const char *path);
extern int cache_name_pos(const char *name, int namelen);
#define ADD_CACHE_OK_TO_ADD 1 /* Ok to add */
#define ADD_CACHE_OK_TO_REPLACE 2 /* Ok to replace file/directory */
@ -158,6 +160,12 @@ extern int index_pipe(unsigned char *sha1, int fd, const char *type, int write_o
extern int index_path(unsigned char *sha1, const char *path, struct stat *st, int write_object);
extern void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
#define REFRESH_REALLY 0x0001 /* ignore_valid */
#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
#define REFRESH_QUIET 0x0004 /* be quiet about it */
#define REFRESH_IGNORE_MISSING 0x0008 /* ignore non-existent */
extern int refresh_cache(unsigned int flags);
struct cache_file {
struct cache_file *next;
char lockfile[PATH_MAX];
@ -169,7 +177,7 @@ extern void rollback_index_file(struct cache_file *);
/* Environment bits from configuration mechanism */
extern int trust_executable_bit;
extern int assume_unchanged;
extern int only_use_symrefs;
extern int prefer_symlink_refs;
extern int warn_ambiguous_refs;
extern int diff_rename_limit_default;
extern int shared_repository;
@ -363,4 +371,8 @@ extern int receive_keep_pack(int fd[2], const char *me, int quiet);
/* pager.c */
extern void setup_pager(void);
/* base85 */
int decode_85(char *dst, char *line, int linelen);
void encode_85(char *buf, unsigned char *data, int bytes);
#endif /* CACHE_H */

7
cat-file.c
View File

@ -103,8 +103,10 @@ int main(int argc, char **argv)
setup_git_directory();
git_config(git_default_config);
if (argc != 3 || get_sha1(argv[2], sha1))
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]);
opt = 0;
if ( argv[1][0] == '-' ) {
@ -133,8 +135,7 @@ int main(int argc, char **argv)
return !has_sha1_file(sha1);
case 'p':
if (get_sha1(argv[2], sha1) ||
sha1_object_info(sha1, type, NULL))
if (sha1_object_info(sha1, type, NULL))
die("Not a valid object name %s", argv[2]);
/* custom pretty-print here */

17
check-ref-format.c
View File

@ -1,17 +0,0 @@
/*
* GIT - The information manager from hell
*/
#include "cache.h"
#include "refs.h"
#include <stdio.h>
int main(int ac, char **av)
{
if (ac != 2)
usage("git-check-ref-format refname");
if (check_ref_format(av[1]))
exit(1);
return 0;
}

13
checkout-index.c
View File

@ -270,12 +270,16 @@ int main(int argc, char **argv)
/* Check out named files first */
for ( ; i < argc; i++) {
const char *arg = argv[i];
const char *p;
if (all)
die("git-checkout-index: don't mix '--all' and explicit filenames");
if (read_from_stdin)
die("git-checkout-index: don't mix '--stdin' and explicit filenames");
checkout_file(prefix_path(prefix, prefix_length, arg));
p = prefix_path(prefix, prefix_length, arg);
checkout_file(p);
if (p < arg || p > arg + strlen(arg))
free((char*)p);
}
if (read_from_stdin) {
@ -285,6 +289,8 @@ int main(int argc, char **argv)
strbuf_init(&buf);
while (1) {
char *path_name;
const char *p;
read_line(&buf, stdin, line_termination);
if (buf.eof)
break;
@ -292,7 +298,10 @@ int main(int argc, char **argv)
path_name = unquote_c_style(buf.buf, NULL);
else
path_name = buf.buf;
checkout_file(prefix_path(prefix, prefix_length, path_name));
p = prefix_path(prefix, prefix_length, path_name);
checkout_file(p);
if (p < path_name || p > path_name + strlen(path_name))
free((char *)p);
if (path_name != buf.buf)
free(path_name);
}

48
combine-diff.c
View File

@ -608,6 +608,7 @@ static int show_patch_diff(struct combine_diff_path *elem, int num_parent,
int abbrev = opt->full_index ? 40 : DEFAULT_ABBREV;
mmfile_t result_file;
context = opt->context;
/* Read the result of merge first */
if (!working_tree_file)
result = grab_blob(elem->sha1, &result_size);
@ -831,15 +832,16 @@ void show_combined_diff(struct combine_diff_path *p,
}
}
void diff_tree_combined_merge(const unsigned char *sha1,
int dense, struct rev_info *rev)
void diff_tree_combined(const unsigned char *sha1,
const unsigned char parent[][20],
int num_parent,
int dense,
struct rev_info *rev)
{
struct diff_options *opt = &rev->diffopt;
struct commit *commit = lookup_commit(sha1);
struct diff_options diffopts;
struct commit_list *parents;
struct combine_diff_path *p, *paths = NULL;
int num_parent, i, num_paths;
int i, num_paths;
int do_diffstat;
do_diffstat = (opt->output_format == DIFF_FORMAT_DIFFSTAT ||
@ -849,17 +851,8 @@ void diff_tree_combined_merge(const unsigned char *sha1,
diffopts.with_stat = 0;
diffopts.recursive = 1;
/* count parents */
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
; /* nothing */
/* find set of paths that everybody touches */
for (parents = commit->parents, i = 0;
parents;
parents = parents->next, i++) {
struct commit *parent = parents->item;
for (i = 0; i < num_parent; i++) {
/* show stat against the first parent even
* when doing combined diff.
*/
@ -867,8 +860,7 @@ void diff_tree_combined_merge(const unsigned char *sha1,
diffopts.output_format = DIFF_FORMAT_DIFFSTAT;
else
diffopts.output_format = DIFF_FORMAT_NO_OUTPUT;
diff_tree_sha1(parent->object.sha1, commit->object.sha1, "",
&diffopts);
diff_tree_sha1(parent[i], sha1, "", &diffopts);
diffcore_std(&diffopts);
paths = intersect_paths(paths, i, num_parent);
@ -907,3 +899,25 @@ void diff_tree_combined_merge(const unsigned char *sha1,
free(tmp);
}
}
void diff_tree_combined_merge(const unsigned char *sha1,
int dense, struct rev_info *rev)
{
int num_parent;
const unsigned char (*parent)[20];
struct commit *commit = lookup_commit(sha1);
struct commit_list *parents;
/* count parents */
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
; /* nothing */
parent = xmalloc(num_parent * sizeof(*parent));
for (parents = commit->parents, num_parent = 0;
parents;
parents = parents->next, num_parent++)
memcpy(parent + num_parent, parents->item->object.sha1, 20);
diff_tree_combined(sha1, parent, num_parent, dense, rev);
}

8
commit-tree.c
View File

@ -91,15 +91,19 @@ int main(int argc, char **argv)
git_config(git_default_config);
if (argc < 2 || get_sha1(argv[1], tree_sha1) < 0)
if (argc < 2)
usage(commit_tree_usage);
if (get_sha1(argv[1], tree_sha1))
die("Not a valid object name %s", argv[1]);
check_valid(tree_sha1, tree_type);
for (i = 2; i < argc; i += 2) {
char *a, *b;
a = argv[i]; b = argv[i+1];
if (!b || strcmp(a, "-p") || get_sha1(b, parent_sha1[parents]))
if (!b || strcmp(a, "-p"))
usage(commit_tree_usage);
if (get_sha1(b, parent_sha1[parents]))
die("Not a valid object name %s", b);
check_valid(parent_sha1[parents], commit_type);
if (new_parent(parents))
parents++;

38
commit.c
View File

@ -22,23 +22,33 @@ struct sort_node
const char *commit_type = "commit";
struct cmt_fmt_map {
const char *n;
size_t cmp_len;
enum cmit_fmt v;
} cmt_fmts[] = {
{ "raw", 1, CMIT_FMT_RAW },
{ "medium", 1, CMIT_FMT_MEDIUM },
{ "short", 1, CMIT_FMT_SHORT },
{ "full", 5, CMIT_FMT_FULL },
{ "fuller", 5, CMIT_FMT_FULLER },
{ "oneline", 1, CMIT_FMT_ONELINE },
};
enum cmit_fmt get_commit_format(const char *arg)
{
if (!*arg)
int i;
if (!arg || !*arg)
return CMIT_FMT_DEFAULT;
if (!strcmp(arg, "=raw"))
return CMIT_FMT_RAW;
if (!strcmp(arg, "=medium"))
return CMIT_FMT_MEDIUM;
if (!strcmp(arg, "=short"))
return CMIT_FMT_SHORT;
if (!strcmp(arg, "=full"))
return CMIT_FMT_FULL;
if (!strcmp(arg, "=fuller"))
return CMIT_FMT_FULLER;
if (!strcmp(arg, "=oneline"))
return CMIT_FMT_ONELINE;
die("invalid --pretty format");
if (*arg == '=')
arg++;
for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len))
return cmt_fmts[i].v;
}
die("invalid --pretty format: %s", arg);
}
static struct commit *check_commit(struct object *obj,

131
config.c
View File

@ -60,6 +60,12 @@ static char *parse_value(void)
space = 1;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
if (space) {
if (len)
value[len++] = ' ';
@ -93,12 +99,6 @@ static char *parse_value(void)
quote = 1-quote;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
value[len++] = c;
}
}
@ -134,6 +134,41 @@ static int get_value(config_fn_t fn, char *name, unsigned int len)
return fn(name, value);
}
static int get_extended_base_var(char *name, int baselen, int c)
{
do {
if (c == '\n')
return -1;
c = get_next_char();
} while (isspace(c));
/* We require the format to be '[base "extension"]' */
if (c != '"')
return -1;
name[baselen++] = '.';
for (;;) {
int c = get_next_char();
if (c == '\n')
return -1;
if (c == '"')
break;
if (c == '\\') {
c = get_next_char();
if (c == '\n')
return -1;
}
name[baselen++] = c;
if (baselen > MAXNAME / 2)
return -1;
}
/* Final ']' */
if (get_next_char() != ']')
return -1;
return baselen;
}
static int get_base_var(char *name)
{
int baselen = 0;
@ -144,6 +179,8 @@ static int get_base_var(char *name)
return -1;
if (c == ']')
return baselen;
if (isspace(c))
return get_extended_base_var(name, baselen, c);
if (!isalnum(c) && c != '.')
return -1;
if (baselen > MAXNAME / 2)
@ -227,8 +264,8 @@ int git_default_config(const char *var, const char *value)
return 0;
}
if (!strcmp(var, "core.symrefsonly")) {
only_use_symrefs = git_config_bool(var, value);
if (!strcmp(var, "core.prefersymlinkrefs")) {
prefer_symlink_refs = git_config_bool(var, value);
return 0;
}
@ -335,16 +372,43 @@ static int store_aux(const char* key, const char* value)
store.offset[store.seen] = ftell(config_file);
store.state = KEY_SEEN;
store.seen++;
} else if(!strncmp(key, store.key, store.baselen))
store.state = SECTION_SEEN;
} else {
if (strrchr(key, '.') - key == store.baselen &&
!strncmp(key, store.key, store.baselen)) {
store.state = SECTION_SEEN;
store.offset[store.seen] = ftell(config_file);
}
}
}
return 0;
}
static void store_write_section(int fd, const char* key)
{
const char *dot = strchr(key, '.');
int len1 = store.baselen, len2 = -1;
dot = strchr(key, '.');
if (dot) {
int dotlen = dot - key;
if (dotlen < len1) {
len2 = len1 - dotlen - 1;
len1 = dotlen;
}
}
write(fd, "[", 1);
write(fd, key, store.baselen);
write(fd, key, len1);
if (len2 >= 0) {
write(fd, " \"", 2);
while (--len2 >= 0) {
unsigned char c = *++dot;
if (c == '"')
write(fd, "\\", 1);
write(fd, &c, 1);
}
write(fd, "\"", 1);
}
write(fd, "]\n", 2);
}
@ -418,8 +482,8 @@ int git_config_set(const char* key, const char* value)
int git_config_set_multivar(const char* key, const char* value,
const char* value_regex, int multi_replace)
{
int i;
int fd, in_fd;
int i, dot;
int fd = -1, in_fd;
int ret;
char* config_filename = strdup(git_path("config"));
char* lock_file = strdup(git_path("config.lock"));
@ -443,16 +507,23 @@ int git_config_set_multivar(const char* key, const char* value,
* Validate the key and while at it, lower case it for matching.
*/
store.key = (char*)malloc(strlen(key)+1);
for (i = 0; key[i]; i++)
if (i != store.baselen &&
((!isalnum(key[i]) && key[i] != '.') ||
(i == store.baselen+1 && !isalpha(key[i])))) {
fprintf(stderr, "invalid key: %s\n", key);
free(store.key);
ret = 1;
goto out_free;
} else
store.key[i] = tolower(key[i]);
dot = 0;
for (i = 0; key[i]; i++) {
unsigned char c = key[i];
if (c == '.')
dot = 1;
/* Leave the extended basename untouched.. */
if (!dot || i > store.baselen) {
if (!isalnum(c) || (i == store.baselen+1 && !isalpha(c))) {
fprintf(stderr, "invalid key: %s\n", key);
free(store.key);
ret = 1;
goto out_free;
}
c = tolower(c);
}
store.key[i] = c;
}
store.key[i] = 0;
/*
@ -477,15 +548,11 @@ int git_config_set_multivar(const char* key, const char* value,
if ( ENOENT != errno ) {
error("opening %s: %s", config_filename,
strerror(errno));
close(fd);
unlink(lock_file);
ret = 3; /* same as "invalid config file" */
goto out_free;
}
/* if nothing to unset, error out */
if (value == NULL) {
close(fd);
unlink(lock_file);
ret = 5;
goto out_free;
}
@ -548,8 +615,6 @@ int git_config_set_multivar(const char* key, const char* value,
/* if nothing to unset, or too many matches, error out */
if ((store.seen == 0 && value == NULL) ||
(store.seen > 1 && multi_replace == 0)) {
close(fd);
unlink(lock_file);
ret = 5;
goto out_free;
}
@ -598,8 +663,6 @@ int git_config_set_multivar(const char* key, const char* value,
unlink(config_filename);
}
close(fd);
if (rename(lock_file, config_filename) < 0) {
fprintf(stderr, "Could not rename the lock file?\n");
ret = 4;
@ -609,10 +672,14 @@ int git_config_set_multivar(const char* key, const char* value,
ret = 0;
out_free:
if (0 <= fd)
close(fd);
if (config_filename)
free(config_filename);
if (lock_file)
if (lock_file) {
unlink(lock_file);
free(lock_file);
}
return ret;
}

8
contrib/git-svn/git-svn.perl
View File

@ -8,7 +8,7 @@ use vars qw/ $AUTHOR $VERSION
$GIT_SVN_INDEX $GIT_SVN
$GIT_DIR $REV_DIR/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
$VERSION = '0.11.0';
$VERSION = '1.0.0';
use Cwd qw/abs_path/;
$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
@ -42,7 +42,8 @@ my %fc_opts = ( 'no-ignore-externals' => \$_no_ignore_ext,
my %cmd = (
fetch => [ \&fetch, "Download new revisions from SVN",
{ 'revision|r=s' => \$_revision, %fc_opts } ],
init => [ \&init, "Initialize and fetch (import)", { } ],
init => [ \&init, "Initialize a repo for tracking" .
" (requires URL argument)", { } ],
commit => [ \&commit, "Commit git revisions to SVN",
{ 'stdin|' => \$_stdin,
'edit|e' => \$_edit,
@ -220,7 +221,8 @@ when you have upgraded your tools and habits to use refs/remotes/$GIT_SVN
}
sub init {
$SVN_URL = shift or croak "SVN repository location required\n";
$SVN_URL = shift or die "SVN repository location required " .
"as a command-line argument\n";
unless (-d $GIT_DIR) {
sys('git-init-db');
}

45
contrib/git-svn/git-svn.txt
View File

@ -36,17 +36,22 @@ COMMANDS
--------
init::
Creates an empty git repository with additional metadata
directories for git-svn. The SVN_URL must be specified
at this point.
directories for git-svn. The Subversion URL must be specified
as a command-line argument.
fetch::
Fetch unfetched revisions from the SVN_URL we are tracking.
refs/heads/remotes/git-svn will be updated to the latest revision.
Fetch unfetched revisions from the Subversion URL we are
tracking. refs/remotes/git-svn will be updated to the
latest revision.
Note: You should never attempt to modify the remotes/git-svn branch
outside of git-svn. Instead, create a branch from remotes/git-svn
and work on that branch. Use the 'commit' command (see below)
to write git commits back to remotes/git-svn.
Note: You should never attempt to modify the remotes/git-svn
branch outside of git-svn. Instead, create a branch from
remotes/git-svn and work on that branch. Use the 'commit'
command (see below) to write git commits back to
remotes/git-svn.
See 'Additional Fetch Arguments' if you are interested in
manually joining branches on commit.
commit::
Commit specified commit or tree objects to SVN. This relies on
@ -62,9 +67,9 @@ rebuild::
tracked with git-svn. Unfortunately, git-clone does not clone
git-svn metadata and the svn working tree that git-svn uses for
its operations. This rebuilds the metadata so git-svn can
resume fetch operations. SVN_URL may be optionally specified if
the directory/repository you're tracking has moved or changed
protocols.
resume fetch operations. A Subversion URL may be optionally
specified at the command-line if the directory/repository you're
tracking has moved or changed protocols.
show-ignore::
Recursively finds and lists the svn:ignore property on
@ -123,6 +128,24 @@ OPTIONS
repo-config key: svn.l
repo-config key: svn.findcopiesharder
-A<filename>::
--authors-file=<filename>::
Syntax is compatible with the files used by git-svnimport and
git-cvsimport:
------------------------------------------------------------------------
loginname = Joe User <user@example.com>
------------------------------------------------------------------------
If this option is specified and git-svn encounters an SVN
committer name that does not exist in the authors-file, git-svn
will abort operation. The user will then have to add the
appropriate entry. Re-running the previous git-svn command
after the authors-file is modified should continue operation.
repo-config key: svn.authors-file
ADVANCED OPTIONS
----------------
-b<refname>::

35
contrib/remotes2config.sh Normal file
View File

@ -0,0 +1,35 @@
#!/bin/sh
# Use this tool to rewrite your .git/remotes/ files into the config.
. git-sh-setup
if [ -d "$GIT_DIR"/remotes ]; then
echo "Rewriting $GIT_DIR/remotes" >&2
error=0
# rewrite into config
{
cd "$GIT_DIR"/remotes
ls | while read f; do
name=$(echo -n "$f" | tr -c "A-Za-z0-9" ".")
sed -n \
-e "s/^URL: \(.*\)$/remote.$name.url \1 ./p" \
-e "s/^Pull: \(.*\)$/remote.$name.fetch \1 ^$ /p" \
-e "s/^Push: \(.*\)$/remote.$name.push \1 ^$ /p" \
< "$f"
done
echo done
} | while read key value regex; do
case $key in
done)
if [ $error = 0 ]; then
mv "$GIT_DIR"/remotes "$GIT_DIR"/remotes.old
fi ;;
*)
echo "git-repo-config $key "$value" $regex"
git-repo-config $key "$value" $regex || error=1 ;;
esac
done
fi

4
convert-objects.c
View File

@ -321,8 +321,10 @@ int main(int argc, char **argv)
setup_git_directory();
if (argc != 2 || get_sha1(argv[1], sha1))
if (argc != 2)
usage("git-convert-objects <sha1>");
if (get_sha1(argv[1], sha1))
die("Not a valid object name %s", argv[1]);
entry = convert_entry(sha1);
printf("new sha1: %s\n", sha1_to_hex(entry->new_sha1));

77
delta.h
View File

@ -1,12 +1,75 @@
#ifndef DELTA_H
#define DELTA_H
/* handling of delta buffers */
extern void *diff_delta(void *from_buf, unsigned long from_size,
void *to_buf, unsigned long to_size,
unsigned long *delta_size, unsigned long max_size);
extern void *patch_delta(void *src_buf, unsigned long src_size,
void *delta_buf, unsigned long delta_size,
/* opaque object for delta index */
struct delta_index;
/*
* create_delta_index: compute index data from given buffer
*
* This returns a pointer to a struct delta_index that should be passed to
* subsequent create_delta() calls, or to free_delta_index(). A NULL pointer
* is returned on failure. The given buffer must not be freed nor altered
* before free_delta_index() is called. The returned pointer must be freed
* using free_delta_index().
*/
extern struct delta_index *
create_delta_index(const void *buf, unsigned long bufsize);
/*
* free_delta_index: free the index created by create_delta_index()
*
* Given pointer must be what create_delta_index() returned, or NULL.
*/
extern void free_delta_index(struct delta_index *index);
/*
* create_delta: create a delta from given index for the given buffer
*
* This function may be called multiple times with different buffers using
* the same delta_index pointer. If max_delta_size is non-zero and the
* resulting delta is to be larger than max_delta_size then NULL is returned.
* On success, a non-NULL pointer to the buffer with the delta data is
* returned and *delta_size is updated with its size. The returned buffer
* must be freed by the caller.
*/
extern void *
create_delta(const struct delta_index *index,
const void *buf, unsigned long bufsize,
unsigned long *delta_size, unsigned long max_delta_size);
/*
* diff_delta: create a delta from source buffer to target buffer
*
* If max_delta_size is non-zero and the resulting delta is to be larger
* than max_delta_size then NULL is returned. On success, a non-NULL
* pointer to the buffer with the delta data is returned and *delta_size is
* updated with its size. The returned buffer must be freed by the caller.
*/
static inline void *
diff_delta(const void *src_buf, unsigned long src_bufsize,
const void *trg_buf, unsigned long trg_bufsize,
unsigned long *delta_size, unsigned long max_delta_size)
{
struct delta_index *index = create_delta_index(src_buf, src_bufsize);
if (index) {
void *delta = create_delta(index, trg_buf, trg_bufsize,
delta_size, max_delta_size);
free_delta_index(index);
return delta;
}
return NULL;
}
/*
* patch_delta: recreate target buffer given source buffer and delta data
*
* On success, a non-NULL pointer to the target buffer is returned and
* *trg_bufsize is updated with its size. On failure a NULL pointer is
* returned. The returned buffer must be freed by the caller.
*/
extern void *patch_delta(const void *src_buf, unsigned long src_size,
const void *delta_buf, unsigned long delta_size,
unsigned long *dst_size);
/* the smallest possible delta size is 4 bytes */
@ -14,7 +77,7 @@ extern void *patch_delta(void *src_buf, unsigned long src_size,
/*
* This must be called twice on the delta data buffer, first to get the
* expected reference buffer size, and again to get the result buffer size.
* expected source buffer size, and again to get the target buffer size.
*/
static inline unsigned long get_delta_hdr_size(const unsigned char **datap,
const unsigned char *top)

6
describe.c
View File

@ -105,11 +105,11 @@ static void describe(char *arg, int last_one)
static int initialized = 0;
struct commit_name *n;
if (get_sha1(arg, sha1) < 0)
usage(describe_usage);
if (get_sha1(arg, sha1))
die("Not a valid object name %s", arg);
cmit = lookup_commit_reference(sha1);
if (!cmit)
usage(describe_usage);
die("%s is not a valid '%s' object", arg, commit_type);
if (!initialized) {
initialized = 1;

364
diff-delta.c
View File

@ -20,69 +20,187 @@
#include <stdlib.h>
#include <string.h>
#include <zlib.h>
#include "delta.h"
/* block size: min = 16, max = 64k, power of 2 */
#define BLK_SIZE 16
/* maximum hash entry list for the same hash bucket */
#define HASH_LIMIT 64
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define RABIN_SHIFT 23
#define RABIN_WINDOW 16
#define GR_PRIME 0x9e370001
#define HASH(v, shift) (((unsigned int)(v) * GR_PRIME) >> (shift))
struct index {
const unsigned char *ptr;
unsigned int val;
struct index *next;
static const unsigned int T[256] = {
0x00000000, 0xab59b4d1, 0x56b369a2, 0xfdeadd73, 0x063f6795, 0xad66d344,
0x508c0e37, 0xfbd5bae6, 0x0c7ecf2a, 0xa7277bfb, 0x5acda688, 0xf1941259,
0x0a41a8bf, 0xa1181c6e, 0x5cf2c11d, 0xf7ab75cc, 0x18fd9e54, 0xb3a42a85,
0x4e4ef7f6, 0xe5174327, 0x1ec2f9c1, 0xb59b4d10, 0x48719063, 0xe32824b2,
0x1483517e, 0xbfdae5af, 0x423038dc, 0xe9698c0d, 0x12bc36eb, 0xb9e5823a,
0x440f5f49, 0xef56eb98, 0x31fb3ca8, 0x9aa28879, 0x6748550a, 0xcc11e1db,
0x37c45b3d, 0x9c9defec, 0x6177329f, 0xca2e864e, 0x3d85f382, 0x96dc4753,
0x6b369a20, 0xc06f2ef1, 0x3bba9417, 0x90e320c6, 0x6d09fdb5, 0xc6504964,
0x2906a2fc, 0x825f162d, 0x7fb5cb5e, 0xd4ec7f8f, 0x2f39c569, 0x846071b8,
0x798aaccb, 0xd2d3181a, 0x25786dd6, 0x8e21d907, 0x73cb0474, 0xd892b0a5,
0x23470a43, 0x881ebe92, 0x75f463e1, 0xdeadd730, 0x63f67950, 0xc8afcd81,
0x354510f2, 0x9e1ca423, 0x65c91ec5, 0xce90aa14, 0x337a7767, 0x9823c3b6,
0x6f88b67a, 0xc4d102ab, 0x393bdfd8, 0x92626b09, 0x69b7d1ef, 0xc2ee653e,
0x3f04b84d, 0x945d0c9c, 0x7b0be704, 0xd05253d5, 0x2db88ea6, 0x86e13a77,
0x7d348091, 0xd66d3440, 0x2b87e933, 0x80de5de2, 0x7775282e, 0xdc2c9cff,
0x21c6418c, 0x8a9ff55d, 0x714a4fbb, 0xda13fb6a, 0x27f92619, 0x8ca092c8,
0x520d45f8, 0xf954f129, 0x04be2c5a, 0xafe7988b, 0x5432226d, 0xff6b96bc,
0x02814bcf, 0xa9d8ff1e, 0x5e738ad2, 0xf52a3e03, 0x08c0e370, 0xa39957a1,
0x584ced47, 0xf3155996, 0x0eff84e5, 0xa5a63034, 0x4af0dbac, 0xe1a96f7d,
0x1c43b20e, 0xb71a06df, 0x4ccfbc39, 0xe79608e8, 0x1a7cd59b, 0xb125614a,
0x468e1486, 0xedd7a057, 0x103d7d24, 0xbb64c9f5, 0x40b17313, 0xebe8c7c2,
0x16021ab1, 0xbd5bae60, 0x6cb54671, 0xc7ecf2a0, 0x3a062fd3, 0x915f9b02,
0x6a8a21e4, 0xc1d39535, 0x3c394846, 0x9760fc97, 0x60cb895b, 0xcb923d8a,
0x3678e0f9, 0x9d215428, 0x66f4eece, 0xcdad5a1f, 0x3047876c, 0x9b1e33bd,
0x7448d825, 0xdf116cf4, 0x22fbb187, 0x89a20556, 0x7277bfb0, 0xd92e0b61,
0x24c4d612, 0x8f9d62c3, 0x7836170f, 0xd36fa3de, 0x2e857ead, 0x85dcca7c,
0x7e09709a, 0xd550c44b, 0x28ba1938, 0x83e3ade9, 0x5d4e7ad9, 0xf617ce08,
0x0bfd137b, 0xa0a4a7aa, 0x5b711d4c, 0xf028a99d, 0x0dc274ee, 0xa69bc03f,
0x5130b5f3, 0xfa690122, 0x0783dc51, 0xacda6880, 0x570fd266, 0xfc5666b7,
0x01bcbbc4, 0xaae50f15, 0x45b3e48d, 0xeeea505c, 0x13008d2f, 0xb85939fe,
0x438c8318, 0xe8d537c9, 0x153feaba, 0xbe665e6b, 0x49cd2ba7, 0xe2949f76,
0x1f7e4205, 0xb427f6d4, 0x4ff24c32, 0xe4abf8e3, 0x19412590, 0xb2189141,
0x0f433f21, 0xa41a8bf0, 0x59f05683, 0xf2a9e252, 0x097c58b4, 0xa225ec65,
0x5fcf3116, 0xf49685c7, 0x033df00b, 0xa86444da, 0x558e99a9, 0xfed72d78,
0x0502979e, 0xae5b234f, 0x53b1fe3c, 0xf8e84aed, 0x17bea175, 0xbce715a4,
0x410dc8d7, 0xea547c06, 0x1181c6e0, 0xbad87231, 0x4732af42, 0xec6b1b93,
0x1bc06e5f, 0xb099da8e, 0x4d7307fd, 0xe62ab32c, 0x1dff09ca, 0xb6a6bd1b,
0x4b4c6068, 0xe015d4b9, 0x3eb80389, 0x95e1b758, 0x680b6a2b, 0xc352defa,
0x3887641c, 0x93ded0cd, 0x6e340dbe, 0xc56db96f, 0x32c6cca3, 0x999f7872,
0x6475a501, 0xcf2c11d0, 0x34f9ab36, 0x9fa01fe7, 0x624ac294, 0xc9137645,
0x26459ddd, 0x8d1c290c, 0x70f6f47f, 0xdbaf40ae, 0x207afa48, 0x8b234e99,
0x76c993ea, 0xdd90273b, 0x2a3b52f7, 0x8162e626, 0x7c883b55, 0xd7d18f84,
0x2c043562, 0x875d81b3, 0x7ab75cc0, 0xd1eee811
};
static struct index ** delta_index(const unsigned char *buf,
unsigned long bufsize,
unsigned long trg_bufsize,
unsigned int *hash_shift)
{
unsigned int i, hsize, hshift, hlimit, entries, *hash_count;
const unsigned char *data;
struct index *entry, **hash;
void *mem;
static const unsigned int U[256] = {
0x00000000, 0x7eb5200d, 0x5633f4cb, 0x2886d4c6, 0x073e5d47, 0x798b7d4a,
0x510da98c, 0x2fb88981, 0x0e7cba8e, 0x70c99a83, 0x584f4e45, 0x26fa6e48,
0x0942e7c9, 0x77f7c7c4, 0x5f711302, 0x21c4330f, 0x1cf9751c, 0x624c5511,
0x4aca81d7, 0x347fa1da, 0x1bc7285b, 0x65720856, 0x4df4dc90, 0x3341fc9d,
0x1285cf92, 0x6c30ef9f, 0x44b63b59, 0x3a031b54, 0x15bb92d5, 0x6b0eb2d8,
0x4388661e, 0x3d3d4613, 0x39f2ea38, 0x4747ca35, 0x6fc11ef3, 0x11743efe,
0x3eccb77f, 0x40799772, 0x68ff43b4, 0x164a63b9, 0x378e50b6, 0x493b70bb,
0x61bda47d, 0x1f088470, 0x30b00df1, 0x4e052dfc, 0x6683f93a, 0x1836d937,
0x250b9f24, 0x5bbebf29, 0x73386bef, 0x0d8d4be2, 0x2235c263, 0x5c80e26e,
0x740636a8, 0x0ab316a5, 0x2b7725aa, 0x55c205a7, 0x7d44d161, 0x03f1f16c,
0x2c4978ed, 0x52fc58e0, 0x7a7a8c26, 0x04cfac2b, 0x73e5d470, 0x0d50f47d,
0x25d620bb, 0x5b6300b6, 0x74db8937, 0x0a6ea93a, 0x22e87dfc, 0x5c5d5df1,
0x7d996efe, 0x032c4ef3, 0x2baa9a35, 0x551fba38, 0x7aa733b9, 0x041213b4,
0x2c94c772, 0x5221e77f, 0x6f1ca16c, 0x11a98161, 0x392f55a7, 0x479a75aa,
0x6822fc2b, 0x1697dc26, 0x3e1108e0, 0x40a428ed, 0x61601be2, 0x1fd53bef,
0x3753ef29, 0x49e6cf24, 0x665e46a5, 0x18eb66a8, 0x306db26e, 0x4ed89263,
0x4a173e48, 0x34a21e45, 0x1c24ca83, 0x6291ea8e, 0x4d29630f, 0x339c4302,
0x1b1a97c4, 0x65afb7c9, 0x446b84c6, 0x3adea4cb, 0x1258700d, 0x6ced5000,
0x4355d981, 0x3de0f98c, 0x15662d4a, 0x6bd30d47, 0x56ee4b54, 0x285b6b59,
0x00ddbf9f, 0x7e689f92, 0x51d01613, 0x2f65361e, 0x07e3e2d8, 0x7956c2d5,
0x5892f1da, 0x2627d1d7, 0x0ea10511, 0x7014251c, 0x5facac9d, 0x21198c90,
0x099f5856, 0x772a785b, 0x4c921c31, 0x32273c3c, 0x1aa1e8fa, 0x6414c8f7,
0x4bac4176, 0x3519617b, 0x1d9fb5bd, 0x632a95b0, 0x42eea6bf, 0x3c5b86b2,
0x14dd5274, 0x6a687279, 0x45d0fbf8, 0x3b65dbf5, 0x13e30f33, 0x6d562f3e,
0x506b692d, 0x2ede4920, 0x06589de6, 0x78edbdeb, 0x5755346a, 0x29e01467,
0x0166c0a1, 0x7fd3e0ac, 0x5e17d3a3, 0x20a2f3ae, 0x08242768, 0x76910765,
0x59298ee4, 0x279caee9, 0x0f1a7a2f, 0x71af5a22, 0x7560f609, 0x0bd5d604,
0x235302c2, 0x5de622cf, 0x725eab4e, 0x0ceb8b43, 0x246d5f85, 0x5ad87f88,
0x7b1c4c87, 0x05a96c8a, 0x2d2fb84c, 0x539a9841, 0x7c2211c0, 0x029731cd,
0x2a11e50b, 0x54a4c506, 0x69998315, 0x172ca318, 0x3faa77de, 0x411f57d3,
0x6ea7de52, 0x1012fe5f, 0x38942a99, 0x46210a94, 0x67e5399b, 0x19501996,
0x31d6cd50, 0x4f63ed5d, 0x60db64dc, 0x1e6e44d1, 0x36e89017, 0x485db01a,
0x3f77c841, 0x41c2e84c, 0x69443c8a, 0x17f11c87, 0x38499506, 0x46fcb50b,
0x6e7a61cd, 0x10cf41c0, 0x310b72cf, 0x4fbe52c2, 0x67388604, 0x198da609,
0x36352f88, 0x48800f85, 0x6006db43, 0x1eb3fb4e, 0x238ebd5d, 0x5d3b9d50,
0x75bd4996, 0x0b08699b, 0x24b0e01a, 0x5a05c017, 0x728314d1, 0x0c3634dc,
0x2df207d3, 0x534727de, 0x7bc1f318, 0x0574d315, 0x2acc5a94, 0x54797a99,
0x7cffae5f, 0x024a8e52, 0x06852279, 0x78300274, 0x50b6d6b2, 0x2e03f6bf,
0x01bb7f3e, 0x7f0e5f33, 0x57888bf5, 0x293dabf8, 0x08f998f7, 0x764cb8fa,
0x5eca6c3c, 0x207f4c31, 0x0fc7c5b0, 0x7172e5bd, 0x59f4317b, 0x27411176,
0x1a7c5765, 0x64c97768, 0x4c4fa3ae, 0x32fa83a3, 0x1d420a22, 0x63f72a2f,
0x4b71fee9, 0x35c4dee4, 0x1400edeb, 0x6ab5cde6, 0x42331920, 0x3c86392d,
0x133eb0ac, 0x6d8b90a1, 0x450d4467, 0x3bb8646a
};
/* determine index hash size */
entries = bufsize / BLK_SIZE;
struct index_entry {
const unsigned char *ptr;
unsigned int val;
struct index_entry *next;
};
struct delta_index {
const void *src_buf;
unsigned long src_size;
unsigned int hash_mask;
struct index_entry *hash[0];
};
struct delta_index * create_delta_index(const void *buf, unsigned long bufsize)
{
unsigned int i, hsize, hmask, entries, prev_val, *hash_count;
const unsigned char *data, *buffer = buf;
struct delta_index *index;
struct index_entry *entry, **hash;
void *mem;
unsigned long memsize;
if (!buf || !bufsize)
return NULL;
/* Determine index hash size. Note that indexing skips the
first byte to allow for optimizing the rabin polynomial
initialization in create_delta(). */
entries = (bufsize - 1) / RABIN_WINDOW;
hsize = entries / 4;
for (i = 4; (1 << i) < hsize && i < 31; i++);
hsize = 1 << i;
hshift = 32 - i;
*hash_shift = hshift;
hmask = hsize - 1;
/* allocate lookup index */
mem = malloc(hsize * sizeof(*hash) + entries * sizeof(*entry));
memsize = sizeof(*index) +
sizeof(*hash) * hsize +
sizeof(*entry) * entries;
mem = malloc(memsize);
if (!mem)
return NULL;
index = mem;
mem = index + 1;
hash = mem;
entry = mem + hsize * sizeof(*hash);
mem = hash + hsize;
entry = mem;
index->src_buf = buf;
index->src_size = bufsize;
index->hash_mask = hmask;
memset(hash, 0, hsize * sizeof(*hash));
/* allocate an array to count hash entries */
hash_count = calloc(hsize, sizeof(*hash_count));
if (!hash_count) {
free(hash);
free(index);
return NULL;
}
/* then populate the index */
data = buf + entries * BLK_SIZE - BLK_SIZE;
while (data >= buf) {
unsigned int val = adler32(0, data, BLK_SIZE);
i = HASH(val, hshift);
entry->ptr = data;
entry->val = val;
entry->next = hash[i];
hash[i] = entry++;
hash_count[i]++;
data -= BLK_SIZE;
}
prev_val = ~0;
for (data = buffer + entries * RABIN_WINDOW - RABIN_WINDOW;
data >= buffer;
data -= RABIN_WINDOW) {
unsigned int val = 0;
for (i = 1; i <= RABIN_WINDOW; i++)
val = ((val << 8) | data[i]) ^ T[val >> RABIN_SHIFT];
if (val == prev_val) {
/* keep the lowest of consecutive identical blocks */
entry[-1].ptr = data + RABIN_WINDOW;
} else {
prev_val = val;
i = val & hmask;
entry->ptr = data + RABIN_WINDOW;
entry->val = val;
entry->next = hash[i];
hash[i] = entry++;
hash_count[i]++;
}
}
/*
* Determine a limit on the number of entries in the same hash
@ -91,27 +209,18 @@ static struct index ** delta_index(const unsigned char *buf,
* bucket that would bring us to O(m*n) computing costs (m and n
* corresponding to reference and target buffer sizes).
*
* The more the target buffer is large, the more it is important to
* have small entry lists for each hash buckets. With such a limit
* the cost is bounded to something more like O(m+n).
*/
hlimit = (1 << 26) / trg_bufsize;
if (hlimit < 4*BLK_SIZE)
hlimit = 4*BLK_SIZE;
/*
* Now make sure none of the hash buckets has more entries than
* Make sure none of the hash buckets has more entries than
* we're willing to test. Otherwise we cull the entry list
* uniformly to still preserve a good repartition across
* the reference buffer.
*/
for (i = 0; i < hsize; i++) {
if (hash_count[i] < hlimit)
if (hash_count[i] < HASH_LIMIT)
continue;
entry = hash[i];
do {
struct index *keep = entry;
int skip = hash_count[i] / hlimit / 2;
struct index_entry *keep = entry;
int skip = hash_count[i] / HASH_LIMIT / 2;
do {
entry = entry->next;
} while(--skip && entry);
@ -120,32 +229,31 @@ static struct index ** delta_index(const unsigned char *buf,
}
free(hash_count);
return hash;
return index;
}
/* provide the size of the copy opcode given the block offset and size */
#define COPYOP_SIZE(o, s) \
(!!(o & 0xff) + !!(o & 0xff00) + !!(o & 0xff0000) + !!(o & 0xff000000) + \
!!(s & 0xff) + !!(s & 0xff00) + 1)
/* the maximum size for any opcode */
#define MAX_OP_SIZE COPYOP_SIZE(0xffffffff, 0xffffffff)
void *diff_delta(void *from_buf, unsigned long from_size,
void *to_buf, unsigned long to_size,
unsigned long *delta_size,
unsigned long max_size)
void free_delta_index(struct delta_index *index)
{
unsigned int i, outpos, outsize, hash_shift;
free(index);
}
/*
* The maximum size for any opcode sequence, including the initial header
* plus rabin window plus biggest copy.
*/
#define MAX_OP_SIZE (5 + 5 + 1 + RABIN_WINDOW + 7)
void *
create_delta(const struct delta_index *index,
const void *trg_buf, unsigned long trg_size,
unsigned long *delta_size, unsigned long max_size)
{
unsigned int i, outpos, outsize, val;
int inscnt;
const unsigned char *ref_data, *ref_top, *data, *top;
unsigned char *out;
struct index *entry, **hash;
if (!from_size || !to_size)
return NULL;
hash = delta_index(from_buf, from_size, to_size, &hash_shift);
if (!hash)
if (!trg_buf || !trg_size)
return NULL;
outpos = 0;
@ -153,64 +261,66 @@ void *diff_delta(void *from_buf, unsigned long from_size,
if (max_size && outsize >= max_size)
outsize = max_size + MAX_OP_SIZE + 1;
out = malloc(outsize);
if (!out) {
free(hash);
if (!out)
return NULL;
}
ref_data = from_buf;
ref_top = from_buf + from_size;
data = to_buf;
top = to_buf + to_size;
/* store reference buffer size */
out[outpos++] = from_size;
from_size >>= 7;
while (from_size) {
out[outpos - 1] |= 0x80;
out[outpos++] = from_size;
from_size >>= 7;
i = index->src_size;
while (i >= 0x80) {
out[outpos++] = i | 0x80;
i >>= 7;
}
out[outpos++] = i;
/* store target buffer size */
out[outpos++] = to_size;
to_size >>= 7;
while (to_size) {
out[outpos - 1] |= 0x80;
out[outpos++] = to_size;
to_size >>= 7;
i = trg_size;
while (i >= 0x80) {
out[outpos++] = i | 0x80;
i >>= 7;
}
out[outpos++] = i;
inscnt = 0;
ref_data = index->src_buf;
ref_top = ref_data + index->src_size;
data = trg_buf;
top = trg_buf + trg_size;
outpos++;
val = 0;
for (i = 0; i < RABIN_WINDOW && data < top; i++, data++) {
out[outpos++] = *data;
val = ((val << 8) | *data) ^ T[val >> RABIN_SHIFT];
}
inscnt = i;
while (data < top) {
unsigned int moff = 0, msize = 0;
if (data + BLK_SIZE <= top) {
unsigned int val = adler32(0, data, BLK_SIZE);
i = HASH(val, hash_shift);
for (entry = hash[i]; entry; entry = entry->next) {
const unsigned char *ref = entry->ptr;
const unsigned char *src = data;
unsigned int ref_size = ref_top - ref;
if (entry->val != val)
continue;
if (ref_size > top - src)
ref_size = top - src;
if (ref_size > 0x10000)
ref_size = 0x10000;
if (ref_size <= msize)
break;
while (ref_size-- && *src++ == *ref)
ref++;
if (msize < ref - entry->ptr) {
/* this is our best match so far */
msize = ref - entry->ptr;
moff = entry->ptr - ref_data;
}
struct index_entry *entry;
val ^= U[data[-RABIN_WINDOW]];
val = ((val << 8) | *data) ^ T[val >> RABIN_SHIFT];
i = val & index->hash_mask;
for (entry = index->hash[i]; entry; entry = entry->next) {
const unsigned char *ref = entry->ptr;
const unsigned char *src = data;
unsigned int ref_size = ref_top - ref;
if (entry->val != val)
continue;
if (ref_size > top - src)
ref_size = top - src;
if (ref_size > 0x10000)
ref_size = 0x10000;
if (ref_size <= msize)
break;
while (ref_size-- && *src++ == *ref)
ref++;
if (msize < ref - entry->ptr) {
/* this is our best match so far */
msize = ref - entry->ptr;
moff = entry->ptr - ref_data;
}
}
if (!msize || msize < COPYOP_SIZE(moff, msize)) {
if (msize < 4) {
if (!inscnt)
outpos++;
out[outpos++] = *data++;
@ -222,6 +332,20 @@ void *diff_delta(void *from_buf, unsigned long from_size,
} else {
unsigned char *op;
if (msize >= RABIN_WINDOW) {
const unsigned char *sk;
sk = data + msize - RABIN_WINDOW;
val = 0;
for (i = 0; i < RABIN_WINDOW; i++)
val = ((val << 8) | *sk++) ^ T[val >> RABIN_SHIFT];
} else {
const unsigned char *sk = data + 1;
for (i = 1; i < msize; i++) {
val ^= U[sk[-RABIN_WINDOW]];
val = ((val << 8) | *sk++) ^ T[val >> RABIN_SHIFT];
}
}
if (inscnt) {
while (moff && ref_data[moff-1] == data[-1]) {
if (msize == 0x10000)
@ -266,12 +390,10 @@ void *diff_delta(void *from_buf, unsigned long from_size,
if (max_size && outsize >= max_size)
outsize = max_size + MAX_OP_SIZE + 1;
if (max_size && outpos > max_size)
out = NULL;
else
out = realloc(out, outsize);
break;
out = realloc(out, outsize);
if (!out) {
free(tmp);
free(hash);
return NULL;
}
}
@ -280,7 +402,11 @@ void *diff_delta(void *from_buf, unsigned long from_size,
if (inscnt)
out[outpos - inscnt - 1] = inscnt;
free(hash);
if (max_size && outpos > max_size) {
free(out);
return NULL;
}
*delta_size = outpos;
return out;
}

1
diff-index.c
View File

@ -11,7 +11,6 @@ COMMON_DIFF_OPTIONS_HELP;
int main(int argc, const char **argv)
{
struct rev_info rev;
int match_missing = 0;
int cached = 0;
int i;

5
diff-tree.c
View File

@ -138,7 +138,10 @@ int main(int argc, const char **argv)
opt->diffopt.setup |= (DIFF_SETUP_USE_SIZE_CACHE |
DIFF_SETUP_USE_CACHE);
while (fgets(line, sizeof(line), stdin))
diff_tree_stdin(line);
if (line[0] == '\n')
fflush(stdout);
else
diff_tree_stdin(line);
return 0;
}

289
diff.c
View File

@ -8,6 +8,7 @@
#include "quote.h"
#include "diff.h"
#include "diffcore.h"
#include "delta.h"
#include "xdiff-interface.h"
static int use_size_cache;
@ -231,11 +232,16 @@ static char *pprint_rename(const char *a, const char *b)
* name-a => name-b
*/
if (pfx_length + sfx_length) {
int a_midlen = len_a - pfx_length - sfx_length;
int b_midlen = len_b - pfx_length - sfx_length;
if (a_midlen < 0) a_midlen = 0;
if (b_midlen < 0) b_midlen = 0;
name = xmalloc(len_a + len_b - pfx_length - sfx_length + 7);
sprintf(name, "%.*s{%.*s => %.*s}%s",
pfx_length, a,
len_a - pfx_length - sfx_length, a + pfx_length,
len_b - pfx_length - sfx_length, b + pfx_length,
a_midlen, a + pfx_length,
b_midlen, b + pfx_length,
a + len_a - sfx_length);
}
else {
@ -296,7 +302,6 @@ static const char minuses[]= "--------------------------------------------------
static void show_stats(struct diffstat_t* data)
{
char *prefix = "";
int i, len, add, del, total, adds = 0, dels = 0;
int max, max_change = 0, max_len = 0;
int total_files = data->nr;
@ -318,6 +323,7 @@ static void show_stats(struct diffstat_t* data)
}
for (i = 0; i < data->nr; i++) {
char *prefix = "";
char *name = data->files[i]->name;
int added = data->files[i]->added;
int deleted = data->files[i]->deleted;
@ -391,6 +397,90 @@ static void show_stats(struct diffstat_t* data)
total_files, adds, dels);
}
static unsigned char *deflate_it(char *data,
unsigned long size,
unsigned long *result_size)
{
int bound;
unsigned char *deflated;
z_stream stream;
memset(&stream, 0, sizeof(stream));
deflateInit(&stream, Z_BEST_COMPRESSION);
bound = deflateBound(&stream, size);
deflated = xmalloc(bound);
stream.next_out = deflated;
stream.avail_out = bound;
stream.next_in = (unsigned char *)data;
stream.avail_in = size;
while (deflate(&stream, Z_FINISH) == Z_OK)
; /* nothing */
deflateEnd(&stream);
*result_size = stream.total_out;
return deflated;
}
static void emit_binary_diff(mmfile_t *one, mmfile_t *two)
{
void *cp;
void *delta;
void *deflated;
void *data;
unsigned long orig_size;
unsigned long delta_size;
unsigned long deflate_size;
unsigned long data_size;
printf("GIT binary patch\n");
/* We could do deflated delta, or we could do just deflated two,
* whichever is smaller.
*/
delta = NULL;
deflated = deflate_it(two->ptr, two->size, &deflate_size);
if (one->size && two->size) {
delta = diff_delta(one->ptr, one->size,
two->ptr, two->size,
&delta_size, deflate_size);
if (delta) {
void *to_free = delta;
orig_size = delta_size;
delta = deflate_it(delta, delta_size, &delta_size);
free(to_free);
}
}
if (delta && delta_size < deflate_size) {
printf("delta %lu\n", orig_size);
free(deflated);
data = delta;
data_size = delta_size;
}
else {
printf("literal %lu\n", two->size);
free(delta);
data = deflated;
data_size = deflate_size;
}
/* emit data encoded in base85 */
cp = data;
while (data_size) {
int bytes = (52 < data_size) ? 52 : data_size;
char line[70];
data_size -= bytes;
if (bytes <= 26)
line[0] = bytes + 'A' - 1;
else
line[0] = bytes - 26 + 'a' - 1;
encode_85(line + 1, cp, bytes);
cp += bytes;
puts(line);
}
printf("\n");
free(data);
}
#define FIRST_FEW_BYTES 8000
static int mmfile_is_binary(mmfile_t *mf)
{
@ -407,6 +497,7 @@ static void builtin_diff(const char *name_a,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
struct diff_options *o,
int complete_rewrite)
{
mmfile_t mf1, mf2;
@ -451,8 +542,17 @@ static void builtin_diff(const char *name_a,
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2))
printf("Binary files %s and %s differ\n", lbl[0], lbl[1]);
if (mmfile_is_binary(&mf1) || mmfile_is_binary(&mf2)) {
/* Quite common confusing case */
if (mf1.size == mf2.size &&
!memcmp(mf1.ptr, mf2.ptr, mf1.size))
goto free_ab_and_return;
if (o->binary)
emit_binary_diff(&mf1, &mf2);
else
printf("Binary files %s and %s differ\n",
lbl[0], lbl[1]);
}
else {
/* Crazy xdl interfaces.. */
const char *diffopts = getenv("GIT_DIFF_OPTS");
@ -463,7 +563,7 @@ static void builtin_diff(const char *name_a,
ecbdata.label_path = lbl;
xpp.flags = XDF_NEED_MINIMAL;
xecfg.ctxlen = 3;
xecfg.ctxlen = o->context;
xecfg.flags = XDL_EMIT_FUNCNAMES;
if (!diffopts)
;
@ -485,7 +585,8 @@ static void builtin_diff(const char *name_a,
static void builtin_diffstat(const char *name_a, const char *name_b,
struct diff_filespec *one,
struct diff_filespec *two,
struct diffstat_t *diffstat)
struct diffstat_t *diffstat,
int complete_rewrite)
{
mmfile_t mf1, mf2;
struct diffstat_file *data;
@ -496,7 +597,13 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
data->is_unmerged = 1;
return;
}
if (complete_rewrite) {
diff_populate_filespec(one, 0);
diff_populate_filespec(two, 0);
data->deleted = count_lines(one->data, one->size);
data->added = count_lines(two->data, two->size);
return;
}
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
@ -921,6 +1028,7 @@ static void run_diff_cmd(const char *pgm,
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
struct diff_options *o,
int complete_rewrite)
{
if (pgm) {
@ -930,7 +1038,7 @@ static void run_diff_cmd(const char *pgm,
}
if (one && two)
builtin_diff(name, other ? other : name,
one, two, xfrm_msg, complete_rewrite);
one, two, xfrm_msg, o, complete_rewrite);
else
printf("* Unmerged path %s\n", name);
}
@ -964,7 +1072,7 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, 0);
run_diff_cmd(pgm, p->one->path, NULL, NULL, NULL, NULL, o, 0);
return;
}
@ -1011,14 +1119,12 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
}
if (memcmp(one->sha1, two->sha1, 20)) {
char one_sha1[41];
int abbrev = o->full_index ? 40 : DEFAULT_ABBREV;
memcpy(one_sha1, sha1_to_hex(one->sha1), 41);
len += snprintf(msg + len, sizeof(msg) - len,
"index %.*s..%.*s",
abbrev, one_sha1, abbrev,
sha1_to_hex(two->sha1));
abbrev, sha1_to_hex(one->sha1),
abbrev, sha1_to_hex(two->sha1));
if (one->mode == two->mode)
len += snprintf(msg + len, sizeof(msg) - len,
" %06o", one->mode);
@ -1036,14 +1142,14 @@ static void run_diff(struct diff_filepair *p, struct diff_options *o)
* needs to be split into deletion and creation.
*/
struct diff_filespec *null = alloc_filespec(two->path);
run_diff_cmd(NULL, name, other, one, null, xfrm_msg, 0);
run_diff_cmd(NULL, name, other, one, null, xfrm_msg, o, 0);
free(null);
null = alloc_filespec(one->path);
run_diff_cmd(NULL, name, other, null, two, xfrm_msg, 0);
run_diff_cmd(NULL, name, other, null, two, xfrm_msg, o, 0);
free(null);
}
else
run_diff_cmd(pgm, name, other, one, two, xfrm_msg,
run_diff_cmd(pgm, name, other, one, two, xfrm_msg, o,
complete_rewrite);
free(name_munged);
@ -1055,10 +1161,11 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
{
const char *name;
const char *other;
int complete_rewrite = 0;
if (DIFF_PAIR_UNMERGED(p)) {
/* unmerged */
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat);
builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, 0);
return;
}
@ -1068,7 +1175,9 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
diff_fill_sha1_info(p->one);
diff_fill_sha1_info(p->two);
builtin_diffstat(name, other, p->one, p->two, diffstat);
if (p->status == DIFF_STATUS_MODIFIED && p->score)
complete_rewrite = 1;
builtin_diffstat(name, other, p->one, p->two, diffstat, complete_rewrite);
}
void diff_setup(struct diff_options *options)
@ -1078,6 +1187,7 @@ void diff_setup(struct diff_options *options)
options->line_termination = '\n';
options->break_opt = -1;
options->rename_limit = -1;
options->context = 3;
options->change = diff_change;
options->add_remove = diff_addremove;
@ -1118,17 +1228,68 @@ int diff_setup_done(struct diff_options *options)
return 0;
}
int opt_arg(const char *arg, int arg_short, const char *arg_long, int *val)
{
char c, *eq;
int len;
if (*arg != '-')
return 0;
c = *++arg;
if (!c)
return 0;
if (c == arg_short) {
c = *++arg;
if (!c)
return 1;
if (val && isdigit(c)) {
char *end;
int n = strtoul(arg, &end, 10);
if (*end)
return 0;
*val = n;
return 1;
}
return 0;
}
if (c != '-')
return 0;
arg++;
eq = strchr(arg, '=');
if (eq)
len = eq - arg;
else
len = strlen(arg);
if (!len || strncmp(arg, arg_long, len))
return 0;
if (eq) {
int n;
char *end;
if (!isdigit(*++eq))
return 0;
n = strtoul(eq, &end, 10);
if (*end)
return 0;
*val = n;
}
return 1;
}
int diff_opt_parse(struct diff_options *options, const char **av, int ac)
{
const char *arg = av[0];
if (!strcmp(arg, "-p") || !strcmp(arg, "-u"))
options->output_format = DIFF_FORMAT_PATCH;
else if (opt_arg(arg, 'U', "unified", &options->context))
options->output_format = DIFF_FORMAT_PATCH;
else if (!strcmp(arg, "--patch-with-raw")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_raw = 1;
}
else if (!strcmp(arg, "--stat"))
options->output_format = DIFF_FORMAT_DIFFSTAT;
else if (!strcmp(arg, "--summary"))
options->summary = 1;
else if (!strcmp(arg, "--patch-with-stat")) {
options->output_format = DIFF_FORMAT_PATCH;
options->with_stat = 1;
@ -1139,6 +1300,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
options->rename_limit = strtoul(arg+2, NULL, 10);
else if (!strcmp(arg, "--full-index"))
options->full_index = 1;
else if (!strcmp(arg, "--binary")) {
options->output_format = DIFF_FORMAT_PATCH;
options->full_index = options->binary = 1;
}
else if (!strcmp(arg, "--name-only"))
options->output_format = DIFF_FORMAT_NAME;
else if (!strcmp(arg, "--name-status"))
@ -1595,6 +1760,85 @@ static void flush_one_pair(struct diff_filepair *p,
}
}
static void show_file_mode_name(const char *newdelete, struct diff_filespec *fs)
{
if (fs->mode)
printf(" %s mode %06o %s\n", newdelete, fs->mode, fs->path);
else
printf(" %s %s\n", newdelete, fs->path);
}
static void show_mode_change(struct diff_filepair *p, int show_name)
{
if (p->one->mode && p->two->mode && p->one->mode != p->two->mode) {
if (show_name)
printf(" mode change %06o => %06o %s\n",
p->one->mode, p->two->mode, p->two->path);
else
printf(" mode change %06o => %06o\n",
p->one->mode, p->two->mode);
}
}
static void show_rename_copy(const char *renamecopy, struct diff_filepair *p)
{
const char *old, *new;
/* Find common prefix */
old = p->one->path;
new = p->two->path;
while (1) {
const char *slash_old, *slash_new;
slash_old = strchr(old, '/');
slash_new = strchr(new, '/');
if (!slash_old ||
!slash_new ||
slash_old - old != slash_new - new ||
memcmp(old, new, slash_new - new))
break;
old = slash_old + 1;
new = slash_new + 1;
}
/* p->one->path thru old is the common prefix, and old and new
* through the end of names are renames
*/
if (old != p->one->path)
printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy,
(int)(old - p->one->path), p->one->path,
old, new, (int)(0.5 + p->score * 100.0/MAX_SCORE));
else
printf(" %s %s => %s (%d%%)\n", renamecopy,
p->one->path, p->two->path,
(int)(0.5 + p->score * 100.0/MAX_SCORE));
show_mode_change(p, 0);
}
static void diff_summary(struct diff_filepair *p)
{
switch(p->status) {
case DIFF_STATUS_DELETED:
show_file_mode_name("delete", p->one);
break;
case DIFF_STATUS_ADDED:
show_file_mode_name("create", p->two);
break;
case DIFF_STATUS_COPIED:
show_rename_copy("copy", p);
break;
case DIFF_STATUS_RENAMED:
show_rename_copy("rename", p);
break;
default:
if (p->score) {
printf(" rewrite %s (%d%%)\n", p->two->path,
(int)(0.5 + p->score * 100.0/MAX_SCORE));
show_mode_change(p, 0);
} else show_mode_change(p, 1);
break;
}
}
void diff_flush(struct diff_options *options)
{
struct diff_queue_struct *q = &diff_queued_diff;
@ -1628,7 +1872,6 @@ void diff_flush(struct diff_options *options)
for (i = 0; i < q->nr; i++) {
struct diff_filepair *p = q->queue[i];
flush_one_pair(p, diff_output_format, options, diffstat);
diff_free_filepair(p);
}
if (diffstat) {
@ -1636,6 +1879,12 @@ void diff_flush(struct diff_options *options)
free(diffstat);
}
for (i = 0; i < q->nr; i++) {
if (options->summary)
diff_summary(q->queue[i]);
diff_free_filepair(q->queue[i]);
}
free(q->queue);
q->queue = NULL;
q->nr = q->alloc = 0;

7
diff.h
View File

@ -28,9 +28,12 @@ struct diff_options {
with_raw:1,
with_stat:1,
tree_in_recursive:1,
binary:1,
full_index:1,
silent_on_remove:1,
find_copies_harder:1;
find_copies_harder:1,
summary:1;
int context;
int break_opt;
int detect_rename;
int line_termination;
@ -75,6 +78,8 @@ struct combine_diff_path {
extern void show_combined_diff(struct combine_diff_path *elem, int num_parent,
int dense, struct rev_info *);
extern void diff_tree_combined(const unsigned char *sha1, const unsigned char parent[][20], int num_parent, int dense, struct rev_info *rev);
extern void diff_tree_combined_merge(const unsigned char *sha1, int, struct rev_info *);
extern void diff_addremove(struct diff_options *,

401
dir.c Normal file
View File

@ -0,0 +1,401 @@
/*
* This handles recursive filename detection with exclude
* files, index knowledge etc..
*
* Copyright (C) Linus Torvalds, 2005-2006
* Junio Hamano, 2005-2006
*/
#include <dirent.h>
#include <fnmatch.h>
#include "cache.h"
#include "dir.h"
int common_prefix(const char **pathspec)
{
const char *path, *slash, *next;
int prefix;
if (!pathspec)
return 0;
path = *pathspec;
slash = strrchr(path, '/');
if (!slash)
return 0;
prefix = slash - path + 1;
while ((next = *++pathspec) != NULL) {
int len = strlen(next);
if (len >= prefix && !memcmp(path, next, len))
continue;
for (;;) {
if (!len)
return 0;
if (next[--len] != '/')
continue;
if (memcmp(path, next, len+1))
continue;
prefix = len + 1;
break;
}
}
return prefix;
}
static int match_one(const char *match, const char *name, int namelen)
{
int matchlen;
/* If the match was just the prefix, we matched */
matchlen = strlen(match);
if (!matchlen)
return 1;
/*
* If we don't match the matchstring exactly,
* we need to match by fnmatch
*/
if (strncmp(match, name, matchlen))
return !fnmatch(match, name, 0);
/*
* If we did match the string exactly, we still
* need to make sure that it happened on a path
* component boundary (ie either the last character
* of the match was '/', or the next character of
* the name was '/' or the terminating NUL.
*/
return match[matchlen-1] == '/' ||
name[matchlen] == '/' ||
!name[matchlen];
}
int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen)
{
int retval;
const char *match;
name += prefix;
namelen -= prefix;
for (retval = 0; (match = *pathspec++) != NULL; seen++) {
if (retval & *seen)
continue;
match += prefix;
if (match_one(match, name, namelen)) {
retval = 1;
*seen = 1;
}
}
return retval;
}
void add_exclude(const char *string, const char *base,
int baselen, struct exclude_list *which)
{
struct exclude *x = xmalloc(sizeof (*x));
x->pattern = string;
x->base = base;
x->baselen = baselen;
if (which->nr == which->alloc) {
which->alloc = alloc_nr(which->alloc);
which->excludes = realloc(which->excludes,
which->alloc * sizeof(x));
}
which->excludes[which->nr++] = x;
}
static int add_excludes_from_file_1(const char *fname,
const char *base,
int baselen,
struct exclude_list *which)
{
int fd, i;
long size;
char *buf, *entry;
fd = open(fname, O_RDONLY);
if (fd < 0)
goto err;
size = lseek(fd, 0, SEEK_END);
if (size < 0)
goto err;
lseek(fd, 0, SEEK_SET);
if (size == 0) {
close(fd);
return 0;
}
buf = xmalloc(size+1);
if (read(fd, buf, size) != size)
goto err;
close(fd);
buf[size++] = '\n';
entry = buf;
for (i = 0; i < size; i++) {
if (buf[i] == '\n') {
if (entry != buf + i && entry[0] != '#') {
buf[i - (i && buf[i-1] == '\r')] = 0;
add_exclude(entry, base, baselen, which);
}
entry = buf + i + 1;
}
}
return 0;
err:
if (0 <= fd)
close(fd);
return -1;
}
void add_excludes_from_file(struct dir_struct *dir, const char *fname)
{
if (add_excludes_from_file_1(fname, "", 0,
&dir->exclude_list[EXC_FILE]) < 0)
die("cannot use %s as an exclude file", fname);
}
static int push_exclude_per_directory(struct dir_struct *dir, const char *base, int baselen)
{
char exclude_file[PATH_MAX];
struct exclude_list *el = &dir->exclude_list[EXC_DIRS];
int current_nr = el->nr;
if (dir->exclude_per_dir) {
memcpy(exclude_file, base, baselen);
strcpy(exclude_file + baselen, dir->exclude_per_dir);
add_excludes_from_file_1(exclude_file, base, baselen, el);
}
return current_nr;
}
static void pop_exclude_per_directory(struct dir_struct *dir, int stk)
{
struct exclude_list *el = &dir->exclude_list[EXC_DIRS];
while (stk < el->nr)
free(el->excludes[--el->nr]);
}
/* Scan the list and let the last match determines the fate.
* Return 1 for exclude, 0 for include and -1 for undecided.
*/
static int excluded_1(const char *pathname,
int pathlen,
struct exclude_list *el)
{
int i;
if (el->nr) {
for (i = el->nr - 1; 0 <= i; i--) {
struct exclude *x = el->excludes[i];
const char *exclude = x->pattern;
int to_exclude = 1;
if (*exclude == '!') {
to_exclude = 0;
exclude++;
}
if (!strchr(exclude, '/')) {
/* match basename */
const char *basename = strrchr(pathname, '/');
basename = (basename) ? basename+1 : pathname;
if (fnmatch(exclude, basename, 0) == 0)
return to_exclude;
}
else {
/* match with FNM_PATHNAME:
* exclude has base (baselen long) implicitly
* in front of it.
*/
int baselen = x->baselen;
if (*exclude == '/')
exclude++;
if (pathlen < baselen ||
(baselen && pathname[baselen-1] != '/') ||
strncmp(pathname, x->base, baselen))
continue;
if (fnmatch(exclude, pathname+baselen,
FNM_PATHNAME) == 0)
return to_exclude;
}
}
}
return -1; /* undecided */
}
int excluded(struct dir_struct *dir, const char *pathname)
{
int pathlen = strlen(pathname);
int st;
for (st = EXC_CMDL; st <= EXC_FILE; st++) {
switch (excluded_1(pathname, pathlen, &dir->exclude_list[st])) {
case 0:
return 0;
case 1:
return 1;
}
}
return 0;
}
static void add_name(struct dir_struct *dir, const char *pathname, int len)
{
struct dir_entry *ent;
if (cache_name_pos(pathname, len) >= 0)
return;
if (dir->nr == dir->alloc) {
int alloc = alloc_nr(dir->alloc);
dir->alloc = alloc;
dir->entries = xrealloc(dir->entries, alloc*sizeof(ent));
}
ent = xmalloc(sizeof(*ent) + len + 1);
ent->len = len;
memcpy(ent->name, pathname, len);
ent->name[len] = 0;
dir->entries[dir->nr++] = ent;
}
static int dir_exists(const char *dirname, int len)
{
int pos = cache_name_pos(dirname, len);
if (pos >= 0)
return 1;
pos = -pos-1;
if (pos >= active_nr) /* can't */
return 0;
return !strncmp(active_cache[pos]->name, dirname, len);
}
/*
* Read a directory tree. We currently ignore anything but
* directories, regular files and symlinks. That's because git
* doesn't handle them at all yet. Maybe that will change some
* day.
*
* Also, we ignore the name ".git" (even if it is not a directory).
* That likely will not change.
*/
static int read_directory_recursive(struct dir_struct *dir, const char *path, const char *base, int baselen)
{
DIR *fdir = opendir(path);
int contents = 0;
if (fdir) {
int exclude_stk;
struct dirent *de;
char fullname[MAXPATHLEN + 1];
memcpy(fullname, base, baselen);
exclude_stk = push_exclude_per_directory(dir, base, baselen);
while ((de = readdir(fdir)) != NULL) {
int len;
if ((de->d_name[0] == '.') &&
(de->d_name[1] == 0 ||
!strcmp(de->d_name + 1, ".") ||
!strcmp(de->d_name + 1, "git")))
continue;
len = strlen(de->d_name);
memcpy(fullname + baselen, de->d_name, len+1);
if (excluded(dir, fullname) != dir->show_ignored) {
if (!dir->show_ignored || DTYPE(de) != DT_DIR) {
continue;
}
}
switch (DTYPE(de)) {
struct stat st;
int subdir, rewind_base;
default:
continue;
case DT_UNKNOWN:
if (lstat(fullname, &st))
continue;
if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
break;
if (!S_ISDIR(st.st_mode))
continue;
/* fallthrough */
case DT_DIR:
memcpy(fullname + baselen + len, "/", 2);
len++;
rewind_base = dir->nr;
subdir = read_directory_recursive(dir, fullname, fullname,
baselen + len);
if (dir->show_other_directories &&
(subdir || !dir->hide_empty_directories) &&
!dir_exists(fullname, baselen + len)) {
// Rewind the read subdirectory
while (dir->nr > rewind_base)
free(dir->entries[--dir->nr]);
break;
}
contents += subdir;
continue;
case DT_REG:
case DT_LNK:
break;
}
add_name(dir, fullname, baselen + len);
contents++;
}
closedir(fdir);
pop_exclude_per_directory(dir, exclude_stk);
}
return contents;
}
static int cmp_name(const void *p1, const void *p2)
{
const struct dir_entry *e1 = *(const struct dir_entry **)p1;
const struct dir_entry *e2 = *(const struct dir_entry **)p2;
return cache_name_compare(e1->name, e1->len,
e2->name, e2->len);
}
int read_directory(struct dir_struct *dir, const char *path, const char *base, int baselen)
{
/*
* Make sure to do the per-directory exclude for all the
* directories leading up to our base.
*/
if (baselen) {
if (dir->exclude_per_dir) {
char *p, *pp = xmalloc(baselen+1);
memcpy(pp, base, baselen+1);
p = pp;
while (1) {
char save = *p;
*p = 0;
push_exclude_per_directory(dir, pp, p-pp);
*p++ = save;
if (!save)
break;
p = strchr(p, '/');
if (p)
p++;
else
p = pp + baselen;
}
free(pp);
}
}
read_directory_recursive(dir, path, base, baselen);
qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
return dir->nr;
}

51
dir.h Normal file
View File

@ -0,0 +1,51 @@
#ifndef DIR_H
#define DIR_H
/*
* We maintain three exclude pattern lists:
* EXC_CMDL lists patterns explicitly given on the command line.
* EXC_DIRS lists patterns obtained from per-directory ignore files.
* EXC_FILE lists patterns from fallback ignore files.
*/
#define EXC_CMDL 0
#define EXC_DIRS 1
#define EXC_FILE 2
struct dir_entry {
int len;
char name[FLEX_ARRAY]; /* more */
};
struct exclude_list {
int nr;
int alloc;
struct exclude {
const char *pattern;
const char *base;
int baselen;
} **excludes;
};
struct dir_struct {
int nr, alloc;
unsigned int show_ignored:1,
show_other_directories:1,
hide_empty_directories:1;
struct dir_entry **entries;
/* Exclude info */
const char *exclude_per_dir;
struct exclude_list exclude_list[3];
};
extern int common_prefix(const char **pathspec);
extern int match_pathspec(const char **pathspec, const char *name, int namelen, int prefix, char *seen);
extern int read_directory(struct dir_struct *, const char *path, const char *base, int baselen);
extern int excluded(struct dir_struct *, const char *);
extern void add_excludes_from_file(struct dir_struct *, const char *fname);
extern void add_exclude(const char *string, const char *base,
int baselen, struct exclude_list *which);
#endif

2
environment.c
View File

@ -13,7 +13,7 @@ char git_default_email[MAX_GITNAME];
char git_default_name[MAX_GITNAME];
int trust_executable_bit = 1;
int assume_unchanged = 0;
int only_use_symrefs = 0;
int prefer_symlink_refs = 0;
int warn_ambiguous_refs = 1;
int repository_format_version = 0;
char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";

56
git-add.sh
View File

@ -1,56 +0,0 @@
#!/bin/sh
USAGE='[-n] [-v] <file>...'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
show_only=
verbose=
while : ; do
case "$1" in
-n)
show_only=true
;;
-v)
verbose=--verbose
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
# Check misspelled pathspec
case "$#" in
0) ;;
*)
git-ls-files --error-unmatch --others --cached -- "$@" >/dev/null || {
echo >&2 "Maybe you misspelled it?"
exit 1
}
;;
esac
if test -f "$GIT_DIR/info/exclude"
then
git-ls-files -z \
--exclude-from="$GIT_DIR/info/exclude" \
--others --exclude-per-directory=.gitignore -- "$@"
else
git-ls-files -z \
--others --exclude-per-directory=.gitignore -- "$@"
fi |
case "$show_only" in
true)
xargs -0 echo ;;
*)
git-update-index --add $verbose -z --stdin ;;
esac

80
git-am.sh
View File

@ -14,6 +14,30 @@ stop_here () {
exit 1
}
stop_here_user_resolve () {
if [ -n "$resolvemsg" ]; then
echo "$resolvemsg"
stop_here $1
fi
cmdline=$(basename $0)
if test '' != "$interactive"
then
cmdline="$cmdline -i"
fi
if test '' != "$threeway"
then
cmdline="$cmdline -3"
fi
if test '.dotest' != "$dotest"
then
cmdline="$cmdline -d=$dotest"
fi
echo "When you have resolved this problem run \"$cmdline --resolved\"."
echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"."
stop_here $1
}
go_next () {
rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \
"$dotest/patch" "$dotest/info"
@ -35,46 +59,12 @@ fall_back_3way () {
GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
git-write-tree >"$dotest/patch-merge-base+" &&
# index has the base tree now.
(
cd "$dotest/patch-merge-tmp-dir" &&
GIT_INDEX_FILE="../patch-merge-tmp-index" \
GIT_OBJECT_DIRECTORY="$O_OBJECT" \
git-apply $binary --index <../patch
)
GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \
git-apply $binary --cached <"$dotest/patch"
then
echo Using index info to reconstruct a base tree...
mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base"
mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index"
else
# Otherwise, try nearby trees that can be used to apply the
# patch.
(
N=10
# Hoping the patch is against our recent commits...
git-rev-list --max-count=$N HEAD
# or hoping the patch is against known tags...
git-ls-remote --tags .
) |
while read base junk
do
# See if we have it as a tree...
git-cat-file tree "$base" >/dev/null 2>&1 || continue
rm -fr "$dotest"/patch-merge-* &&
mkdir "$dotest/patch-merge-tmp-dir" || break
(
cd "$dotest/patch-merge-tmp-dir" &&
GIT_INDEX_FILE=../patch-merge-tmp-index &&
GIT_OBJECT_DIRECTORY="$O_OBJECT" &&
export GIT_INDEX_FILE GIT_OBJECT_DIRECTORY &&
git-read-tree "$base" &&
git-apply $binary --index &&
mv ../patch-merge-tmp-index ../patch-merge-index &&
echo "$base" >../patch-merge-base
) <"$dotest/patch" 2>/dev/null && break
done
fi
test -f "$dotest/patch-merge-index" &&
@ -101,7 +91,7 @@ fall_back_3way () {
}
prec=4
dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws=
dotest=.dotest sign= utf8= keep= skip= interactive= resolved= binary= ws= resolvemsg=
while case "$#" in 0) break;; esac
do
@ -137,6 +127,9 @@ do
--whitespace=*)
ws=$1; shift ;;
--resolvemsg=*)
resolvemsg=$(echo "$1" | sed -e "s/^--resolvemsg=//"); shift ;;
--)
shift; break ;;
-*)
@ -165,7 +158,7 @@ then
else
# Make sure we are not given --skip nor --resolved
test ",$skip,$resolved," = ,,, ||
die "we are not resuming."
die "Resolve operation not in progress, we are not resuming."
# Start afresh.
mkdir -p "$dotest" || exit
@ -374,7 +367,14 @@ do
if test '' = "$changed"
then
echo "No changes - did you forget update-index?"
stop_here $this
stop_here_user_resolve $this
fi
unmerged=$(git-ls-files -u)
if test -n "$unmerged"
then
echo "You still have unmerged paths in your index"
echo "did you forget update-index?"
stop_here_user_resolve $this
fi
apply_status=0
;;
@ -400,7 +400,7 @@ do
if test $apply_status != 0
then
echo Patch failed at $msgnum.
stop_here $this
stop_here_user_resolve $this
fi
if test -x "$GIT_DIR"/hooks/pre-applypatch

10
git-annotate.perl
View File

@ -10,9 +10,10 @@ use warnings;
use strict;
use Getopt::Long;
use POSIX qw(strftime gmtime);
use File::Basename qw(basename dirname);
sub usage() {
print STDERR 'Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
print STDERR "Usage: ${\basename $0} [-s] [-S revs-file] file [ revision ]
-l, --long
Show long rev (Defaults off)
-t, --time
@ -23,7 +24,7 @@ sub usage() {
Use revs from revs-file instead of calling git-rev-list
-h, --help
This message.
';
";
exit(1);
}
@ -35,7 +36,7 @@ my $rc = GetOptions( "long|l" => \$longrev,
"help|h" => \$help,
"rename|r" => \$rename,
"rev-file|S=s" => \$rev_file);
if (!$rc or $help) {
if (!$rc or $help or !@ARGV) {
usage();
}
@ -208,6 +209,9 @@ sub find_parent_renames {
while (my $change = <$patch>) {
chomp $change;
my $filename = <$patch>;
if (!defined $filename) {
next;
}
chomp $filename;
if ($change =~ m/^[AMD]$/ ) {

5
git-branch.sh
View File

@ -1,6 +1,6 @@
#!/bin/sh
USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]]'
USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]] | -r'
LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
If one argument, create a new branch <branchname> based off of current HEAD.
If two arguments, create a new branch <branchname> based off of <start-point>.'
@ -82,8 +82,7 @@ done
case "$#" in
0)
git-rev-parse --symbolic --all |
sed -ne 's|^refs/heads/||p' |
git-rev-parse --symbolic --branches |
sort |
while read ref
do

2
git-checkout.sh
View File

@ -144,7 +144,7 @@ else
work=`git write-tree` &&
git read-tree --reset $new &&
git checkout-index -f -u -q -a &&
git read-tree -m -u $old $new $work || exit
git read-tree -m -u --aggressive $old $new $work || exit
if result=`git write-tree 2>/dev/null`
then

17
git-clean.sh
View File

@ -3,13 +3,15 @@
# Copyright (c) 2005-2006 Pavel Roskin
#
USAGE="[-d] [-n] [-q] [-x | -X]"
USAGE="[-d] [-n] [-q] [-x | -X] [--] <paths>..."
LONG_USAGE='Clean untracked files from the working directory
-d remove directories as well
-n don'\''t remove anything, just show what would be done
-q be quiet, only report errors
-x remove ignored files as well
-X remove only ignored files as well'
-X remove only ignored files
When optional <paths>... arguments are given, the paths
affected are further limited to those that match them.'
SUBDIRECTORY_OK=Yes
. git-sh-setup
@ -44,8 +46,15 @@ do
-X)
ignoredonly=1
;;
*)
--)
shift
break
;;
-*)
usage
;;
*)
break
esac
shift
done
@ -64,7 +73,7 @@ if [ -z "$ignored" ]; then
fi
fi
git-ls-files --others --directory $excl ${excl_info:+"$excl_info"} |
git-ls-files --others --directory $excl ${excl_info:+"$excl_info"} -- "$@" |
while read -r file; do
if [ -d "$file" -a ! -L "$file" ]; then
if [ -z "$cleandir" ]; then

6
git-clone.sh
View File

@ -261,11 +261,7 @@ yes,yes)
;;
yes)
mkdir -p "$GIT_DIR/objects/info"
{
test -f "$repo/objects/info/alternates" &&
cat "$repo/objects/info/alternates";
echo "$repo/objects"
} >"$GIT_DIR/objects/info/alternates"
echo "$repo/objects" >> "$GIT_DIR/objects/info/alternates"
;;
esac
git-ls-remote "$repo" >"$GIT_DIR/CLONE_HEAD"

2
git-commit.sh
View File

@ -640,6 +640,8 @@ case "$no_edit" in
exit 1
;;
esac
git-var GIT_AUTHOR_IDENT > /dev/null || die
git-var GIT_COMMITTER_IDENT > /dev/null || die
${VISUAL:-${EDITOR:-vi}} "$GIT_DIR/COMMIT_EDITMSG"
;;
esac

31
git-count-objects.sh
View File

@ -1,31 +0,0 @@
#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
GIT_DIR=`git-rev-parse --git-dir` || exit $?
dc </dev/null 2>/dev/null || {
# This is not a real DC at all -- it just knows how
# this script feeds DC and does the computation itself.
dc () {
while read a b
do
case $a,$b in
0,) acc=0 ;;
*,+) acc=$(($acc + $a)) ;;
p,) echo "$acc" ;;
esac
done
}
}
echo $(find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null | wc -l) objects, \
$({
echo 0
# "no-such" is to help Darwin folks by not using xargs -r.
find "$GIT_DIR/objects"/?? -type f -print 2>/dev/null |
xargs du -k "$GIT_DIR/objects/no-such" 2>/dev/null |
sed -e 's/[ ].*/ +/'
echo p
} | dc) kilobytes

22
git-cvsexportcommit.perl
View File

@ -10,9 +10,9 @@ unless ($ENV{GIT_DIR} && -r $ENV{GIT_DIR}){
die "GIT_DIR is not defined or is unreadable";
}
our ($opt_h, $opt_p, $opt_v, $opt_c );
our ($opt_h, $opt_p, $opt_v, $opt_c, $opt_f, $opt_m );
getopts('hpvc');
getopts('hpvcfm:');
$opt_h && usage();
@ -77,12 +77,16 @@ if ($parent) {
$opt_v && print "Applying to CVS commit $commit from parent $parent\n";
# grab the commit message
`git-cat-file commit $commit | sed -e '1,/^\$/d' > .msg`;
open(MSG, ">.msg") or die "Cannot open .msg for writing";
print MSG $opt_m;
close MSG;
`git-cat-file commit $commit | sed -e '1,/^\$/d' >> .msg`;
$? && die "Error extracting the commit message";
my (@afiles, @dfiles, @mfiles);
my @files = safe_pipe_capture('git-diff-tree', '-r', $parent, $commit);
print @files;
#print @files;
$? && die "Error in git-diff-tree";
foreach my $f (@files) {
chomp $f;
@ -109,7 +113,7 @@ foreach my $f (@afiles) {
if (@status > 1) { warn 'Strange! cvs status returned more than one line?'};
unless ($status[0] =~ m/Status: Unknown$/) {
$dirty = 1;
warn "File $f is already known in your CVS checkout!\n";
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";
}
}
foreach my $f (@mfiles, @dfiles) {
@ -122,7 +126,11 @@ foreach my $f (@mfiles, @dfiles) {
}
}
if ($dirty) {
die "Exiting: your CVS tree is not clean for this merge.";
if ($opt_f) { warn "The tree is not clean -- forced merge\n";
$dirty = 0;
} else {
die "Exiting: your CVS tree is not clean for this merge.";
}
}
###
@ -215,7 +223,7 @@ if ($opt_c) {
}
sub usage {
print STDERR <<END;
Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [ parent ] commit
Usage: GIT_DIR=/path/to/.git ${\basename $0} [-h] [-p] [-v] [-c] [-f] [-m msgprefix] [ parent ] commit
END
exit(1);
}

2
git-cvsimport.perl
View File

@ -350,7 +350,7 @@ sub _line {
return $res;
} elsif($line =~ s/^E //) {
# print STDERR "S: $line\n";
} elsif($line =~ /^Remove-entry /i) {
} elsif($line =~ /^(Remove-entry|Removed) /i) {
$line = $self->readline(); # filename
$line = $self->readline(); # OK
chomp $line;

268
git-cvsserver.perl
View File

@ -88,7 +88,7 @@ my $TEMP_DIR = tempdir( CLEANUP => 1 );
$log->debug("Temporary directory is '$TEMP_DIR'");
# if we are called with a pserver argument,
# deal with the authentication cat before entereing the
# deal with the authentication cat before entering the
# main loop
if (@ARGV && $ARGV[0] eq 'pserver') {
my $line = <STDIN>; chomp $line;
@ -117,7 +117,7 @@ while (<STDIN>)
{
chomp;
# Check to see if we've seen this method, and call appropiate function.
# Check to see if we've seen this method, and call appropriate function.
if ( /^([\w-]+)(?:\s+(.*))?$/ and defined($methods->{$1}) )
{
# use the $methods hash to call the appropriate sub for this command
@ -171,11 +171,11 @@ sub req_Root
return 0;
}
my @gitvars = `git-var -l`;
my @gitvars = `git-repo-config -l`;
if ($?) {
print "E problems executing git-var on the server -- this is not a git repository or the PATH is not set correcly.\n";
print "E problems executing git-repo-config on the server -- this is not a git repository or the PATH is not set correctly.\n";
print "E \n";
print "error 1 - problem executing git-var\n";
print "error 1 - problem executing git-repo-config\n";
return 0;
}
foreach my $line ( @gitvars )
@ -214,8 +214,7 @@ sub req_Globaloption
{
my ( $cmd, $data ) = @_;
$log->debug("req_Globaloption : $data");
# TODO : is this data useful ???
$state->{globaloptions}{$data} = 1;
}
# Valid-responses request-list \n
@ -224,7 +223,7 @@ sub req_Globaloption
sub req_Validresponses
{
my ( $cmd, $data ) = @_;
$log->debug("req_Validrepsonses : $data");
$log->debug("req_Validresponses : $data");
# TODO : re-enable this, currently it's not particularly useful
#$state->{validresponses} = [ split /\s+/, $data ];
@ -267,12 +266,32 @@ sub req_Directory
$state->{localdir} = $data;
$state->{repository} = $repository;
$state->{directory} = $repository;
$state->{directory} =~ s/^$state->{CVSROOT}\///;
$state->{module} = $1 if ($state->{directory} =~ s/^(.*?)(\/|$)//);
$state->{path} = $repository;
$state->{path} =~ s/^$state->{CVSROOT}\///;
$state->{module} = $1 if ($state->{path} =~ s/^(.*?)(\/|$)//);
$state->{path} .= "/" if ( $state->{path} =~ /\S/ );
$state->{directory} = $state->{localdir};
$state->{directory} = "" if ( $state->{directory} eq "." );
$state->{directory} .= "/" if ( $state->{directory} =~ /\S/ );
$log->debug("req_Directory : localdir=$data repository=$repository directory=$state->{directory} module=$state->{module}");
if ( not defined($state->{prependdir}) and $state->{localdir} eq "." and $state->{path} =~ /\S/ )
{
$log->info("Setting prepend to '$state->{path}'");
$state->{prependdir} = $state->{path};
foreach my $entry ( keys %{$state->{entries}} )
{
$state->{entries}{$state->{prependdir} . $entry} = $state->{entries}{$entry};
delete $state->{entries}{$entry};
}
}
if ( defined ( $state->{prependdir} ) )
{
$log->debug("Prepending '$state->{prependdir}' to state|directory");
$state->{directory} = $state->{prependdir} . $state->{directory}
}
$log->debug("req_Directory : localdir=$data repository=$repository path=$state->{path} directory=$state->{directory} module=$state->{module}");
}
# Entry entry-line \n
@ -290,7 +309,7 @@ sub req_Entry
{
my ( $cmd, $data ) = @_;
$log->debug("req_Entry : $data");
#$log->debug("req_Entry : $data");
my @data = split(/\//, $data);
@ -300,6 +319,22 @@ sub req_Entry
options => $data[4],
tag_or_date => $data[5],
};
$log->info("Received entry line '$data' => '" . $state->{directory} . $data[1] . "'");
}
# Questionable filename \n
# Response expected: no. Additional data: no. Tell the server to check
# whether filename should be ignored, and if not, next time the server
# sends responses, send (in a M response) `?' followed by the directory and
# filename. filename must not contain `/'; it needs to be a file in the
# directory named by the most recent Directory request.
sub req_Questionable
{
my ( $cmd, $data ) = @_;
$log->debug("req_Questionable : $data");
$state->{entries}{$state->{directory}.$data}{questionable} = 1;
}
# add \n
@ -332,8 +367,7 @@ sub req_add
next;
}
my ( $filepart, $dirpart ) = filenamesplit($filename);
my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
print "E cvs add: scheduling file `$filename' for addition\n";
@ -414,7 +448,7 @@ sub req_remove
}
my ( $filepart, $dirpart ) = filenamesplit($filename);
my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
print "E cvs remove: scheduling `$filename' for removal\n";
@ -502,22 +536,6 @@ sub req_Unchanged
#$log->debug("req_Unchanged : $data");
}
# Questionable filename \n
# Response expected: no. Additional data: no.
# Tell the server to check whether filename should be ignored,
# and if not, next time the server sends responses, send (in
# a M response) `?' followed by the directory and filename.
# filename must not contain `/'; it needs to be a file in the
# directory named by the most recent Directory request.
sub req_Questionable
{
my ( $cmd, $data ) = @_;
$state->{entries}{$state->{directory}.$data}{questionable} = 1;
#$log->debug("req_Questionable : $data");
}
# Argument text \n
# Response expected: no. Save argument for use in a subsequent command.
# Arguments accumulate until an argument-using command is given, at which
@ -733,7 +751,7 @@ sub req_update
argsplit("update");
#
# It may just be a client exploring the available heads/modukles
# It may just be a client exploring the available heads/modules
# in that case, list them as top level directories and leave it
# at that. Eclipse uses this technique to offer you a list of
# projects (heads in this case) to checkout.
@ -757,8 +775,7 @@ sub req_update
$updater->update();
# if no files were specified, we need to work out what files we should be providing status on ...
argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
argsfromdir($updater);
#$log->debug("update state : " . Dumper($state));
@ -767,6 +784,8 @@ sub req_update
{
$filename = filecleanup($filename);
$log->debug("Processing file $filename");
# if we have a -C we should pretend we never saw modified stuff
if ( exists ( $state->{opt}{C} ) )
{
@ -821,13 +840,16 @@ sub req_update
if ( $meta->{filehash} eq "deleted" )
{
my ( $filepart, $dirpart ) = filenamesplit($filename);
my ( $filepart, $dirpart ) = filenamesplit($filename,1);
$log->info("Removing '$filename' from working copy (no longer in the repo)");
print "E cvs update: `$filename' is no longer in the repository\n";
print "Removed $dirpart\n";
print "$filepart\n";
# Don't want to actually _DO_ the update if -n specified
unless ( $state->{globaloptions}{-n} ) {
print "Removed $dirpart\n";
print "$filepart\n";
}
}
elsif ( not defined ( $state->{entries}{$filename}{modified_hash} )
or $state->{entries}{$filename}{modified_hash} eq $oldmeta->{filehash} )
@ -840,34 +862,42 @@ sub req_update
print "MT newline\n";
print "MT -updated\n";
my ( $filepart, $dirpart ) = filenamesplit($filename);
$dirpart =~ s/^$state->{directory}//;
my ( $filepart, $dirpart ) = filenamesplit($filename,1);
if ( defined ( $wrev ) )
{
# instruct client we're sending a file to put in this path as a replacement
print "Update-existing $dirpart\n";
$log->debug("Updating existing file 'Update-existing $dirpart'");
} else {
# instruct client we're sending a file to put in this path as a new file
print "Created $dirpart\n";
$log->debug("Creating new file 'Created $dirpart'");
}
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
# Don't want to actually _DO_ the update if -n specified
unless ( $state->{globaloptions}{-n} )
{
if ( defined ( $wrev ) )
{
# instruct client we're sending a file to put in this path as a replacement
print "Update-existing $dirpart\n";
$log->debug("Updating existing file 'Update-existing $dirpart'");
} else {
# instruct client we're sending a file to put in this path as a new file
print "Clear-static-directory $dirpart\n";
print $state->{CVSROOT} . "/$state->{module}/$dirpart\n";
print "Clear-sticky $dirpart\n";
print $state->{CVSROOT} . "/$state->{module}/$dirpart\n";
# this is an "entries" line
$log->debug("/$filepart/1.$meta->{revision}///");
print "/$filepart/1.$meta->{revision}///\n";
$log->debug("Creating new file 'Created $dirpart'");
print "Created $dirpart\n";
}
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
# permissions
$log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
# this is an "entries" line
$log->debug("/$filepart/1.$meta->{revision}///");
print "/$filepart/1.$meta->{revision}///\n";
# transmit file
transmitfile($meta->{filehash});
# permissions
$log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
# transmit file
transmitfile($meta->{filehash});
}
} else {
$log->info("Updating '$filename'");
my ( $filepart, $dirpart ) = filenamesplit($meta->{name});
my ( $filepart, $dirpart ) = filenamesplit($meta->{name},1);
my $dir = tempdir( DIR => $TEMP_DIR, CLEANUP => 1 ) . "/";
@ -892,19 +922,29 @@ sub req_update
$log->info("Merged successfully");
print "M M $filename\n";
$log->debug("Update-existing $dirpart");
print "Update-existing $dirpart\n";
$log->debug($state->{CVSROOT} . "/$state->{module}/$filename");
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
$log->debug("/$filepart/1.$meta->{revision}///");
print "/$filepart/1.$meta->{revision}///\n";
# Don't want to actually _DO_ the update if -n specified
unless ( $state->{globaloptions}{-n} )
{
print "Update-existing $dirpart\n";
$log->debug($state->{CVSROOT} . "/$state->{module}/$filename");
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
$log->debug("/$filepart/1.$meta->{revision}///");
print "/$filepart/1.$meta->{revision}///\n";
}
}
elsif ( $return == 1 )
{
$log->info("Merged with conflicts");
print "M C $filename\n";
print "Update-existing $dirpart\n";
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
print "/$filepart/1.$meta->{revision}/+//\n";
# Don't want to actually _DO_ the update if -n specified
unless ( $state->{globaloptions}{-n} )
{
print "Update-existing $dirpart\n";
print $state->{CVSROOT} . "/$state->{module}/$filename\n";
print "/$filepart/1.$meta->{revision}/+//\n";
}
}
else
{
@ -912,17 +952,21 @@ sub req_update
next;
}
# permissions
$log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
# Don't want to actually _DO_ the update if -n specified
unless ( $state->{globaloptions}{-n} )
{
# permissions
$log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}");
print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n";
# transmit file, format is single integer on a line by itself (file
# size) followed by the file contents
# TODO : we should copy files in blocks
my $data = `cat $file_local`;
$log->debug("File size : " . length($data));
print length($data) . "\n";
print $data;
# transmit file, format is single integer on a line by itself (file
# size) followed by the file contents
# TODO : we should copy files in blocks
my $data = `cat $file_local`;
$log->debug("File size : " . length($data));
print length($data) . "\n";
print $data;
}
chdir "/";
}
@ -950,6 +994,7 @@ sub req_ci
if ( -e $state->{CVSROOT} . "/index" )
{
$log->warn("file 'index' already exists in the git repository");
print "error 1 Index already exists in git repo\n";
exit;
}
@ -957,6 +1002,7 @@ sub req_ci
my $lockfile = "$state->{CVSROOT}/refs/heads/$state->{module}.lock";
unless ( sysopen(LOCKFILE,$lockfile,O_EXCL|O_CREAT|O_WRONLY) )
{
$log->warn("lockfile '$lockfile' already exists, please try again");
print "error 1 Lock file '$lockfile' already exists, please try again\n";
exit;
}
@ -988,6 +1034,7 @@ sub req_ci
# foreach file specified on the commandline ...
foreach my $filename ( @{$state->{args}} )
{
my $committedfile = $filename;
$filename = filecleanup($filename);
next unless ( exists $state->{entries}{$filename}{modified_filename} or not $state->{entries}{$filename}{unchanged} );
@ -1022,7 +1069,7 @@ sub req_ci
exit;
}
push @committedfiles, $filename;
push @committedfiles, $committedfile;
$log->info("Committing $filename");
system("mkdir","-p",$dirpart) unless ( -d $dirpart );
@ -1105,7 +1152,7 @@ sub req_ci
my $meta = $updater->getmeta($filename);
my ( $filepart, $dirpart ) = filenamesplit($filename);
my ( $filepart, $dirpart ) = filenamesplit($filename, 1);
$log->debug("Checked-in $dirpart : $filename");
@ -1141,7 +1188,7 @@ sub req_status
$updater->update();
# if no files were specified, we need to work out what files we should be providing status on ...
argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
argsfromdir($updater);
# foreach file specified on the commandline ...
foreach my $filename ( @{$state->{args}} )
@ -1242,7 +1289,7 @@ sub req_diff
$updater->update();
# if no files were specified, we need to work out what files we should be providing status on ...
argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
argsfromdir($updater);
# foreach file specified on the commandline ...
foreach my $filename ( @{$state->{args}} )
@ -1384,7 +1431,7 @@ sub req_log
$updater->update();
# if no files were specified, we need to work out what files we should be providing status on ...
argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
argsfromdir($updater);
# foreach file specified on the commandline ...
foreach my $filename ( @{$state->{args}} )
@ -1460,7 +1507,7 @@ sub req_annotate
$updater->update();
# if no files were specified, we need to work out what files we should be providing annotate on ...
argsfromdir($updater) if ( scalar ( @{$state->{args}} ) == 0 );
argsfromdir($updater);
# we'll need a temporary checkout dir
my $tmpdir = tempdir ( DIR => $TEMP_DIR );
@ -1655,13 +1702,36 @@ sub argsfromdir
{
my $updater = shift;
$state->{args} = [];
$state->{args} = [] if ( scalar(@{$state->{args}}) == 1 and $state->{args}[0] eq "." );
foreach my $file ( @{$updater->gethead} )
return if ( scalar ( @{$state->{args}} ) > 1 );
if ( scalar(@{$state->{args}}) == 1 )
{
next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
next unless ( $file->{name} =~ s/^$state->{directory}// );
push @{$state->{args}}, $file->{name};
my $arg = $state->{args}[0];
$arg .= $state->{prependdir} if ( defined ( $state->{prependdir} ) );
$log->info("Only one arg specified, checking for directory expansion on '$arg'");
foreach my $file ( @{$updater->gethead} )
{
next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
next unless ( $file->{name} =~ /^$arg\// or $file->{name} eq $arg );
push @{$state->{args}}, $file->{name};
}
shift @{$state->{args}} if ( scalar(@{$state->{args}}) > 1 );
} else {
$log->info("Only one arg specified, populating file list automatically");
$state->{args} = [];
foreach my $file ( @{$updater->gethead} )
{
next if ( $file->{filehash} eq "deleted" and not defined ( $state->{entries}{$file->{name}} ) );
next unless ( $file->{name} =~ s/^$state->{prependdir}// );
push @{$state->{args}}, $file->{name};
}
}
}
@ -1731,16 +1801,22 @@ sub transmitfile
}
# This method takes a file name, and returns ( $dirpart, $filepart ) which
# refers to the directory porition and the file portion of the filename
# refers to the directory portion and the file portion of the filename
# respectively
sub filenamesplit
{
my $filename = shift;
my $fixforlocaldir = shift;
my ( $filepart, $dirpart ) = ( $filename, "." );
( $filepart, $dirpart ) = ( $2, $1 ) if ( $filename =~ /(.*)\/(.*)/ );
$dirpart .= "/";
if ( $fixforlocaldir )
{
$dirpart =~ s/^$state->{prependdir}//;
}
return ( $filepart, $dirpart );
}
@ -1756,8 +1832,7 @@ sub filecleanup
}
$filename =~ s/^\.\///g;
$filename = $state->{directory} . $filename;
$filename = $state->{prependdir} . $filename;
return $filename;
}
@ -1790,7 +1865,7 @@ Log::Log4perl
=head2 new
Creates a new log object, optionally you can specify a filename here to
indicate the file to log to. If no log file is specified, you can specifiy one
indicate the file to log to. If no log file is specified, you can specify one
later with method setfile, or indicate you no longer want logging with method
nofile.
@ -2076,14 +2151,15 @@ sub update
# TODO: log processing is memory bound
# if we can parse into a 2nd file that is in reverse order
# we can probably do something really efficient
my @git_log_params = ('--parents', '--topo-order');
my @git_log_params = ('--pretty', '--parents', '--topo-order');
if (defined $lastcommit) {
push @git_log_params, "$lastcommit..$self->{module}";
} else {
push @git_log_params, $self->{module};
}
open(GITLOG, '-|', 'git-log', @git_log_params) or die "Cannot call git-log: $!";
# git-rev-list is the backend / plumbing version of git-log
open(GITLOG, '-|', 'git-rev-list', @git_log_params) or die "Cannot call git-rev-list: $!";
my @commits;
@ -2595,7 +2671,7 @@ sub in_array
=head2 safe_pipe_capture
an alterative to `command` that allows input to be passed as an array
an alternative to `command` that allows input to be passed as an array
to work around shell problems with weird characters in arguments
=cut

74
git-diff.sh
View File

@ -1,74 +0,0 @@
#!/bin/sh
#
# Copyright (c) 2005 Linus Torvalds
# Copyright (c) 2005 Junio C Hamano
USAGE='[ --diff-options ] <ent>{0,2} [<path>...]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit
flags=$(git-rev-parse --no-revs --flags --sq "$@")
files=$(git-rev-parse --no-revs --no-flags --sq "$@")
# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
# obviously I mean 'git diff --cached -p HEAD' in that case.
case "$rev" in
'')
case " $flags " in
*" '--cached' "*)
rev='HEAD '
;;
esac
esac
# If we have -[123] --ours --theirs --base, don't do --cc by default.
case " $flags " in
*" '-"[123]"' "* | *" '--ours' "* | *" '--base' "* | *" '--theirs' "*)
cc_or_p=-p ;;
*)
cc_or_p=--cc ;;
esac
# If we do not have --name-status, --name-only, -r, -c or --stat,
# default to --cc.
case " $flags " in
*" '--name-status' "* | *" '--name-only' "* | *" '-r' "* | *" '-c' "* | \
*" '--stat' "*)
;;
*)
flags="$flags'$cc_or_p' " ;;
esac
# If we do not have -B, -C, -r, nor -p, default to -M.
case " $flags " in
*" '-"[BCMrp]* | *" '--find-copies-harder' "*)
;; # something like -M50.
*)
flags="$flags'-M' " ;;
esac
case "$rev" in
?*' '?*' '?*)
usage
;;
?*' '^?*)
begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&
end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit
cmd="git-diff-tree $flags $begin $end -- $files"
;;
?*' '?*)
cmd="git-diff-tree $flags $rev -- $files"
;;
?*' ')
cmd="git-diff-index $flags $rev -- $files"
;;
'')
cmd="git-diff-files $flags -- $files"
;;
*)
usage
;;
esac
eval "$cmd"

16
git-fetch.sh
View File

@ -270,14 +270,22 @@ fetch_main () {
if [ -n "$GIT_SSL_NO_VERIFY" ]; then
curl_extra_args="-k"
fi
remote_name_quoted=$(perl -e '
max_depth=5
depth=0
head="ref: $remote_name"
while (expr "z$head" : "zref:" && expr $depth \< $max_depth) >/dev/null
do
remote_name_quoted=$(perl -e '
my $u = $ARGV[0];
$u =~ s/^ref:\s*//;
$u =~ s{([^-a-zA-Z0-9/.])}{sprintf"%%%02x",ord($1)}eg;
print "$u";
' "$remote_name")
head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted") &&
' "$head")
head=$(curl -nsfL $curl_extra_args "$remote/$remote_name_quoted")
depth=$( expr \( $depth + 1 \) )
done
expr "z$head" : "z$_x40\$" >/dev/null ||
die "Failed to fetch $remote_name from $remote"
die "Failed to fetch $remote_name from $remote"
echo >&2 Fetching "$remote_name from $remote" using http
git-http-fetch -v -a "$head" "$remote/" || exit
;;

11
git-format-patch.sh
View File

@ -205,11 +205,10 @@ sub show_date {
}
my $t = $time + $minutes * 60;
my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday) = gmtime($t);
return sprintf("%s %s %d %02d:%02d:%02d %d %+05d",
$weekday_names[$wday],
$month_names[$mon],
$mday, $hour, $min, $sec,
$year+1900, $tz);
return sprintf("%s, %d %s %d %02d:%02d:%02d %+05d",
$weekday_names[$wday], $mday,
$month_names[$mon], $year+1900,
$hour, $min, $sec, $tz);
}
print "From nobody Mon Sep 17 00:00:00 2001\n";
@ -275,7 +274,7 @@ print "\n---\n\n";
close FH or die "close $commsg pipe";
' "$keep_subject" "$num" "$signoff" "$headers" "$mimemagic" $commsg
git-diff-tree -p $diff_opts "$commit" | git-apply --stat --summary
git-diff-tree -p --stat --summary $diff_opts "$commit"
echo
case "$mimemagic" in
'');;

62
git-grep.sh
View File

@ -1,62 +0,0 @@
#!/bin/sh
#
# Copyright (c) Linus Torvalds, 2005
#
USAGE='[<option>...] [-e] <pattern> [<path>...]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
got_pattern () {
if [ -z "$no_more_patterns" ]
then
pattern="$1" no_more_patterns=yes
else
die "git-grep: do not specify more than one pattern"
fi
}
no_more_patterns=
pattern=
flags=()
git_flags=()
while : ; do
case "$1" in
-o|--cached|--deleted|--others|--killed|\
--ignored|--modified|--exclude=*|\
--exclude-from=*|\--exclude-per-directory=*)
git_flags=("${git_flags[@]}" "$1")
;;
-e)
got_pattern "$2"
shift
;;
-A|-B|-C|-D|-d|-f|-m)
flags=("${flags[@]}" "$1" "$2")
shift
;;
--)
# The rest are git-ls-files paths
shift
break
;;
-*)
flags=("${flags[@]}" "$1")
;;
*)
if [ -z "$no_more_patterns" ]
then
got_pattern "$1"
shift
fi
[ "$1" = -- ] && shift
break
;;
esac
shift
done
[ "$pattern" ] || {
usage
}
git-ls-files -z "${git_flags[@]}" -- "$@" |
xargs -0 grep "${flags[@]}" -e "$pattern" --

3
git-merge.sh
View File

@ -55,8 +55,7 @@ finish () {
case "$no_summary" in
'')
git-diff-tree -p -M "$head" "$1" |
git-apply --stat --summary
git-diff-tree -p --stat --summary -M "$head" "$1"
;;
esac
}

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