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Merge commit 'mingw/master' into msysgit/merge-mingw-v2

Browse Source 
Conflicts:

	Makefile
	RelNotes
	builtin-ls-files.c
	builtin-tag.c
	cache.h
	compat/mingw.c
	config.c
	connect.c
	cpio.sh
	diff.c
	exec_cmd.c
	git-gui/Makefile
	git-gui/lib/commit.tcl
	git-gui/lib/console.tcl
	git-mergetool.sh
	lockfile.c
	path.c
	rsh.c
	run-command.c
	setup.c
	show-index.c
	spawn-pipe.c
	t/Makefile
	t/t0000-basic.sh
	t/t1300-repo-config.sh
	t/t7501-commit.sh
	t/test-lib.sh

    Resolve as follows
    --- Makefile
    - mingw/devel removes
        SHELL_PATH = /bin/sh
        PERL_PATH = /bin/perl

    This looks ok. Both are set early in the Makefile to sensible values.
    mingw accepts to execute /usr/bin/perl.

    - NO_SYMLINKS is no longer needed. Should be auto-detected.

    - According to our 0e2bdc35af
      we want

    NO_R_TO_GCC_LINKER = YesPlease

      take our before their change.

    - Conflict prefix, SCRIPT_SH:
    our 7999f434d7 set prefix =
    their 4a7c98dbaf removes cpio emulator

    resolve to achieve both.

    - Conflict NO_MEMMEM, THREADED_DELTA_SEARCH: take theirs

    --- RelNotes
    take our: removed file

    --- builtin-ls-files.c
    Conflict write_name_quoted: take their change.

    --- builtin-tag.c
    Conflict strip CR

    our 7734ad404c adds strip CR
    their fd17f5b5f7 modifies code to use strbuf

    resolve by removing our code. TODO: we probably need a replacement?

    --- cache.h
    Conflict is_absolute_path()
    our ef5af72062 ifdef
    their 637fc51696 ifndef
    both achieve the same.

    our is a bit more strict but we take their code because we want
    to reduce differences to mingw.

    --- compat/mingw.c
    Conflict at end of file:
    our 194c1dbb5a adds git_exit()

    resolve by taking their first, followed by our.

    --- config.c
    Conflict 'fd ='
    our 0a453a237e merge junio/master
    introduced strange 'fd ='. Resolve by removing 'fd ='.

    --- connect.c
    - Conflict 'host must have at least 2 chars ...' take their code.

    - git_connect(): take their implementation.

    --- cpio.sh
    Accepted their delete file.

    --- diff.c
    Resolve using their implementation.

    --- exec_cmd.c
    Resolve using their implementation.

    --- git-gui/**
    Resolve using our implementation.

    --- git-mergetool.sh
    Resolve using their implementation

    --- lockfile.c
    trivial resolution (empty line removed)

    --- path.c
    Conflict 'tmp': accepting their implementation, trying TMP, TEMP on all platforms.

    --- rsh.c
    Accept their delete file.

    --- run-command.c
    Resolve using their implementation

    --- setup.c
    Resolve using their implementation

    --- show-index.c
    Conflict PRIuMAX
    our 89697a4c15 fix warning
    their 5be507fc95 PRIuMAX

    resolve fixing warning in their code.

    --- spawn-pipe.c
    Conflict environ vs lookup_prog: resolve taking neither

    --- t/Makefile
    our d1f83218dc --no-hardlinks
    their c603988c10 automtically detect symlink support

    Resolve using our --no-hardlinks but removing --no-symlinks.

    --- t/0000-basic.sh
    Resolve using their implementation.

    --- t/t1300-repo-config.sh
    Resolve using their implementation.

    --- t/t7501-commit.sh
    Resolve using their implementation.

    --- t/test-lib.sh
    our d1f83218dc --no-hardlink
    their c603988c10 automatically detect symlink support

    Resolve using our --no-hardlinks but removing --no-symlinks.

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
This commit is contained in:
Steffen Prohaska
2007-11-05 21:36:01 +01:00
parent 636116b8a7 2952476e8e
commit 69cadd4e60
320 changed files with 15543 additions and 8764 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
.gitignore vendored
View File

@@ -25,7 +25,6 @@ git-clone
git-commit
git-commit-tree
git-config
git-convert-objects
git-count-objects
git-cvsexportcommit
git-cvsimport
@@ -129,7 +128,6 @@ git-status
git-stripspace
git-submodule
git-svn
git-svnimport
git-symbolic-ref
git-tag
git-tar-tree
@@ -172,4 +170,6 @@ config.status
config.mak.autogen
config.mak.append
configure
cpio
tags
TAGS
cscope*

1
.mailmap
View File

@@ -37,6 +37,7 @@ Sam Vilain <sam@vilain.net>
Santi Béjar <sbejar@gmail.com>
Sean Estabrooks <seanlkml@sympatico.ca>
Shawn O. Pearce <spearce@spearce.org>
Steven Grimm <koreth@midwinter.com>
Theodore Ts'o <tytso@mit.edu>
Tony Luck <tony.luck@intel.com>
Uwe Kleine-König <Uwe_Zeisberger@digi.com>

2
Documentation/Makefile
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@@ -123,7 +123,7 @@ cmd-list.made: cmd-list.perl $(MAN1_TXT)
perl ./cmd-list.perl
date >$@
git.7 git.html: git.txt core-intro.txt
git.7 git.html: git.txt
clean:
$(RM) *.xml *.xml+ *.html *.html+ *.1 *.5 *.7 *.texi *.texi+ howto-index.txt howto/*.html doc.dep

10
Documentation/RelNotes-1.5.3.1.txt Normal file
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@@ -0,0 +1,10 @@
GIT v1.5.3.1 Release Notes
==========================
Fixes since v1.5.3
------------------
This is solely to fix the generated RPM's dependencies. We used
to have git-p4 package but we do not anymore. As suggested on
the mailing list, this release makes git-core "Obsolete" git-p4,
so that yum update would not complain.

58
Documentation/RelNotes-1.5.3.2.txt Normal file
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@@ -0,0 +1,58 @@
GIT v1.5.3.2 Release Notes
==========================
Fixes since v1.5.3.1
--------------------
* git-push sent thin packs by default, which was not good for
the public distribution server (no point in saving transfer
while pushing; no point in making the resulting pack less
optimum).
* git-svn sometimes terminated with "Malformed network data" when
talking over svn:// protocol.
* git-send-email re-issued the same message-id about 10% of the
time if you fired off 30 messages within a single second.
* git-stash was not terminating the log message of commits it
internally creates with LF.
* git-apply failed to check the size of the patch hunk when its
beginning part matched the remainder of the preimage exactly,
even though the preimage recorded in the hunk was much larger
(therefore the patch should not have applied), leading to a
segfault.
* "git rm foo && git commit foo" complained that 'foo' needs to
be added first, instead of committing the removal, which was a
nonsense.
* git grep -c said "/dev/null: 0".
* git-add -u failed to recognize a blob whose type changed
between the index and the work tree.
* The limit to rename detection has been tightened a lot to
reduce performance problems with a huge change.
* cvsimport and svnimport barfed when the input tried to move
a tag.
* "git apply -pN" did not chop the right number of directories.
* "git svnimport" did not like SVN tags with funny characters in them.
* git-gui 0.8.3, with assorted fixes, including:
- font-chooser on X11 was unusable with large number of fonts;
- a diff that contained a deleted symlink made it barf;
- an untracked symbolic link to a directory made it fart;
- a file with % in its name made it vomit;
Documentation updates
---------------------
User manual has been somewhat restructured. I think the new
organization is much easier to read.

31
Documentation/RelNotes-1.5.3.3.txt Normal file
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@@ -0,0 +1,31 @@
GIT v1.5.3.3 Release Notes
==========================
Fixes since v1.5.3.2
--------------------
* git-quiltimport did not like it when a patch described in the
series file does not exist.
* p4 importer missed executable bit in some cases.
* The default shell on some FreeBSD did not execute the
argument parsing code correctly and made git unusable.
* git-svn incorrectly spawned pager even when the user user
explicitly asked not to.
* sample post-receive hook overquoted the envelope sender
value.
* git-am got confused when the patch contained a change that is
only about type and not contents.
* git-mergetool did not show our and their version of the
conflicted file when started from a subdirectory of the
project.
* git-mergetool did not pass correct options when invoking diff3.
* git-log sometimes invoked underlying "diff" machinery
unnecessarily.

35
Documentation/RelNotes-1.5.3.4.txt Normal file
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@@ -0,0 +1,35 @@
GIT v1.5.3.4 Release Notes
==========================
Fixes since v1.5.3.3
--------------------
* Change to "git-ls-files" in v1.5.3.3 that was introduced to support
partial commit of removal better had a segfaulting bug, which was
diagnosed and fixed by Keith and Carl.
* Performance improvements for rename detection has been backported
from the 'master' branch.
* "git-for-each-ref --format='%(numparent)'" was not working
correctly at all, and --format='%(parent)' was not working for
merge commits.
* Sample "post-receive-hook" incorrectly sent out push
notification e-mails marked as "From: " the committer of the
commit that happened to be at the tip of the branch that was
pushed, not from the person who pushed.
* "git-remote" did not exit non-zero status upon error.
* "git-add -i" did not respond very well to EOF from tty nor
bogus input.
* "git-rebase -i" squash subcommand incorrectly made the
author of later commit the author of resulting commit,
instead of taking from the first one in the squashed series.
* "git-stash apply --index" was not documented.
* autoconfiguration learned that "ar" command is found as "gas" on
some systems.

94
Documentation/RelNotes-1.5.3.5.txt Normal file
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@@ -0,0 +1,94 @@
GIT v1.5.3.5 Release Notes
==========================
Fixes since v1.5.3.4
--------------------
* Comes with git-gui 0.8.4.
* "git-config" silently ignored options after --list; now it will
error out with a usage message.
* "git-config --file" failed if the argument used a relative path
as it changed directories before opening the file.
* "git-config --file" now displays a proper error message if it
cannot read the file specified on the command line.
* "git-config", "git-diff", "git-apply" failed if run from a
subdirectory with relative GIT_DIR and GIT_WORK_TREE set.
* "git-blame" crashed if run during a merge conflict.
* "git-add -i" did not handle single line hunks correctly.
* "git-rebase -i" and "git-stash apply" failed if external diff
drivers were used for one or more files in a commit. They now
avoid calling the external diff drivers.
* "git-log --follow" did not work unless diff generation (e.g. -p)
was also requested.
* "git-log --follow -B" did not work at all. Fixed.
* "git-log -M -B" did not correctly handle cases of very large files
being renamed and replaced by very small files in the same commit.
* "git-log" printed extra newlines between commits when a diff
was generated internally (e.g. -S or --follow) but not displayed.
* "git-push" error message is more helpful when pushing to a
repository with no matching refs and none specified.
* "git-push" now respects + (force push) on wildcard refspecs,
matching the behavior of git-fetch.
* "git-filter-branch" now updates the working directory when it
has finished filtering the current branch.
* "git-instaweb" no longer fails on Mac OS X.
* "git-cvsexportcommit" didn't always create new parent directories
before trying to create new child directories. Fixed.
* "git-fetch" printed a scary (but bogus) error message while
fetching a tag that pointed to a tree or blob. The error did
not impact correctness, only user perception. The bogus error
is no longer printed.
* "git-ls-files --ignored" did not properly descend into non-ignored
directories that themselves contained ignored files if d_type
was not supported by the filesystem. This bug impacted systems
such as AFS. Fixed.
* Git segfaulted when reading an invalid .gitattributes file. Fixed.
* post-receive-email example hook fixed was fixed for
non-fast-forward updates.
* Documentation updates for supported (but previously undocumented)
options of "git-archive" and "git-reflog".
* "make clean" no longer deletes the configure script that ships
with the git tarball, making multiple architecture builds easier.
* "git-remote show origin" spewed a warning message from Perl
when no remote is defined for the current branch via
branch.<name>.remote configuration settings.
* Building with NO_PERL_MAKEMAKER excessively rebuilt contents
of perl/ subdirectory by rewriting perl.mak.
* http.sslVerify configuration settings were not used in scripted
Porcelains.
* "git-add" leaked a bit of memory while scanning for files to add.
* A few workarounds to squelch false warnings from recent gcc have
been added.
* "git-send-pack $remote frotz" segfaulted when there is nothing
named 'frotz' on the local end.
* "git-rebase -interactive" did not handle its "--strategy" option
properly.

2
Documentation/RelNotes-1.5.3.txt
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@@ -152,7 +152,7 @@ Updates since v1.5.2
cloning locally.
- URL used for "git clone" and friends can specify nonstandard SSH port
by using sh://host:port/path/to/repo syntax.
by using ssh://host:port/path/to/repo syntax.
- "git bundle create" can now create a bundle without negative refs,
i.e. "everything since the beginning up to certain points".

59
Documentation/RelNotes-1.5.4.txt Normal file
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@@ -0,0 +1,59 @@
GIT v1.5.4 Release Notes
========================
Updates since v1.5.3
--------------------
* Comes with much improved gitk.
* git-reset is now built-in.
* git-send-email can optionally talk over ssmtp and use SMTP-AUTH.
* git-rebase learned --whitespace option.
* git-remote knows --mirror mode.
* git-merge can call the "post-merge" hook.
* git-pack-objects can optionally run deltification with multiple threads.
* git-archive can optionally substitute keywords in files marked with
export-subst attribute.
* git-for-each-ref learned %(xxxdate:<dateformat>) syntax to
show the various date fields in different formats.
* git-gc --auto is a low-impact way to automatically run a
variant of git-repack that does not lose unreferenced objects
(read: safer than the usual one) after the user accumulates
too many loose objects.
* git-push has been rewritten in C.
* git-push learned --dry-run option to show what would happen
if a push is run.
* git-remote learned "rm" subcommand.
* git-rebase --interactive mode can now work on detached HEAD.
* git-cvsserver can be run via git-shell.
* git-am and git-rebase are far less verbose.
* git-pull learned to pass --[no-]ff option to underlying git-merge.
* Various Perforce importer updates.
Fixes since v1.5.3
------------------
All of the fixes in v1.5.3 maintenance series are included in
this release, unless otherwise noted.
--
exec >/var/tmp/1
O=v1.5.3.4-450-g952a9e5
echo O=`git describe refs/heads/master`
git shortlog --no-merges $O..refs/heads/master ^refs/heads/maint

2
Documentation/cmd-list.perl
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@@ -94,7 +94,6 @@ git-clone mainporcelain
git-commit mainporcelain
git-commit-tree plumbingmanipulators
git-config ancillarymanipulators
git-convert-objects ancillarymanipulators
git-count-objects ancillaryinterrogators
git-cvsexportcommit foreignscminterface
git-cvsimport foreignscminterface
@@ -186,7 +185,6 @@ git-status mainporcelain
git-stripspace purehelpers
git-submodule mainporcelain
git-svn foreignscminterface
git-svnimport foreignscminterface
git-symbolic-ref plumbingmanipulators
git-tag mainporcelain
git-tar-tree plumbinginterrogators

44
Documentation/config.txt
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@@ -188,7 +188,7 @@ core.worktree::
Set the path to the working tree. The value will not be
used in combination with repositories found automatically in
a .git directory (i.e. $GIT_DIR is not set).
This can be overriden by the GIT_WORK_TREE environment
This can be overridden by the GIT_WORK_TREE environment
variable and the '--work-tree' command line option.
core.logAllRefUpdates::
@@ -324,10 +324,11 @@ branch.<name>.remote::
If this option is not given, `git fetch` defaults to remote "origin".
branch.<name>.merge::
When in branch <name>, it tells `git fetch` the default refspec to
be marked for merging in FETCH_HEAD. The value has exactly to match
a remote part of one of the refspecs which are fetched from the remote
given by "branch.<name>.remote".
When in branch <name>, it tells `git fetch` the default
refspec to be marked for merging in FETCH_HEAD. The value is
handled like the remote part of a refspec, and must match a
ref which is fetched from the remote given by
"branch.<name>.remote".
The merge information is used by `git pull` (which at first calls
`git fetch`) to lookup the default branch for merging. Without
this option, `git pull` defaults to merge the first refspec fetched.
@@ -337,6 +338,12 @@ branch.<name>.merge::
branch.<name>.merge to the desired branch, and use the special setting
`.` (a period) for branch.<name>.remote.
branch.<name>.mergeoptions::
Sets default options for merging into branch <name>. The syntax and
supported options are equal to that of gitlink:git-merge[1], but
option values containing whitespace characters are currently not
supported.
clean.requireForce::
A boolean to make git-clean do nothing unless given -f or -n. Defaults
to false.
@@ -439,6 +446,19 @@ gc.aggressiveWindow::
algorithm used by 'git gc --aggressive'. This defaults
to 10.
gc.auto::
When there are approximately more than this many loose
objects in the repository, `git gc --auto` will pack them.
Some Porcelain commands use this command to perform a
light-weight garbage collection from time to time. Setting
this to 0 disables it.
gc.autopacklimit::
When there are more than this many packs that are not
marked with `*.keep` file in the repository, `git gc
--auto` consolidates them into one larger pack. Setting
this to 0 disables this.
gc.packrefs::
`git gc` does not run `git pack-refs` in a bare repository by
default so that older dumb-transport clients can still fetch
@@ -579,7 +599,7 @@ merge.summary::
merge.tool::
Controls which merge resolution program is used by
gitlink:git-mergetool[l]. Valid values are: "kdiff3", "tkdiff",
gitlink:git-mergetool[1]. Valid values are: "kdiff3", "tkdiff",
"meld", "xxdiff", "emerge", "vimdiff", "gvimdiff", and "opendiff".
merge.verbosity::
@@ -588,7 +608,7 @@ merge.verbosity::
message if conflicts were detected. Level 1 outputs only
conflicts, 2 outputs conflicts and file changes. Level 5 and
above outputs debugging information. The default is level 2.
Can be overriden by 'GIT_MERGE_VERBOSITY' environment variable.
Can be overridden by 'GIT_MERGE_VERBOSITY' environment variable.
merge.<driver>.name::
Defines a human readable name for a custom low-level
@@ -630,9 +650,17 @@ pack.deltaCacheSize::
A value of 0 means no limit. Defaults to 0.
pack.deltaCacheLimit::
The maxium size of a delta, that is cached in
The maximum size of a delta, that is cached in
gitlink:git-pack-objects[1]. Defaults to 1000.
pack.threads::
Specifies the number of threads to spawn when searching for best
delta matches. This requires that gitlink:git-pack-objects[1]
be compiled with pthreads otherwise this option is ignored with a
warning. This is meant to reduce packing time on multiprocessor
machines. The required amount of memory for the delta search window
is however multiplied by the number of threads.
pull.octopus::
The default merge strategy to use when pulling multiple branches
at once.

592
Documentation/core-intro.txt
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@@ -1,592 +0,0 @@
////////////////////////////////////////////////////////////////
GIT - the stupid content tracker
////////////////////////////////////////////////////////////////
"git" can mean anything, depending on your mood.
- random three-letter combination that is pronounceable, and not
actually used by any common UNIX command. The fact that it is a
mispronunciation of "get" may or may not be relevant.
- stupid. contemptible and despicable. simple. Take your pick from the
dictionary of slang.
- "global information tracker": you're in a good mood, and it actually
works for you. Angels sing, and a light suddenly fills the room.
- "goddamn idiotic truckload of sh*t": when it breaks
This is a (not so) stupid but extremely fast directory content manager.
It doesn't do a whole lot at its core, but what it 'does' do is track
directory contents efficiently.
There are two object abstractions: the "object database", and the
"current directory cache" aka "index".
The Object Database
~~~~~~~~~~~~~~~~~~~
The object database is literally just a content-addressable collection
of objects. All objects are named by their content, which is
approximated by the SHA1 hash of the object itself. Objects may refer
to other objects (by referencing their SHA1 hash), and so you can
build up a hierarchy of objects.
All objects have a statically determined "type" aka "tag", which is
determined at object creation time, and which identifies the format of
the object (i.e. how it is used, and how it can refer to other
objects). There are currently four different object types: "blob",
"tree", "commit" and "tag".
A "blob" object cannot refer to any other object, and is, like the type
implies, a pure storage object containing some user data. It is used to
actually store the file data, i.e. a blob object is associated with some
particular version of some file.
A "tree" object is an object that ties one or more "blob" objects into a
directory structure. In addition, a tree object can refer to other tree
objects, thus creating a directory hierarchy.
A "commit" object ties such directory hierarchies together into
a DAG of revisions - each "commit" is associated with exactly one tree
(the directory hierarchy at the time of the commit). In addition, a
"commit" refers to one or more "parent" commit objects that describe the
history of how we arrived at that directory hierarchy.
As a special case, a commit object with no parents is called the "root"
object, and is the point of an initial project commit. Each project
must have at least one root, and while you can tie several different
root objects together into one project by creating a commit object which
has two or more separate roots as its ultimate parents, that's probably
just going to confuse people. So aim for the notion of "one root object
per project", even if git itself does not enforce that.
A "tag" object symbolically identifies and can be used to sign other
objects. It contains the identifier and type of another object, a
symbolic name (of course!) and, optionally, a signature.
Regardless of object type, all objects share the following
characteristics: they are all deflated with zlib, and have a header
that not only specifies their type, but also provides size information
about the data in the object. It's worth noting that the SHA1 hash
that is used to name the object is the hash of the original data
plus this header, so `sha1sum` 'file' does not match the object name
for 'file'.
(Historical note: in the dawn of the age of git the hash
was the sha1 of the 'compressed' object.)
As a result, the general consistency of an object can always be tested
independently of the contents or the type of the object: all objects can
be validated by verifying that (a) their hashes match the content of the
file and (b) the object successfully inflates to a stream of bytes that
forms a sequence of <ascii type without space> + <space> + <ascii decimal
size> + <byte\0> + <binary object data>.
The structured objects can further have their structure and
connectivity to other objects verified. This is generally done with
the `git-fsck` program, which generates a full dependency graph
of all objects, and verifies their internal consistency (in addition
to just verifying their superficial consistency through the hash).
The object types in some more detail:
Blob Object
~~~~~~~~~~~
A "blob" object is nothing but a binary blob of data, and doesn't
refer to anything else. There is no signature or any other
verification of the data, so while the object is consistent (it 'is'
indexed by its sha1 hash, so the data itself is certainly correct), it
has absolutely no other attributes. No name associations, no
permissions. It is purely a blob of data (i.e. normally "file
contents").
In particular, since the blob is entirely defined by its data, if two
files in a directory tree (or in multiple different versions of the
repository) have the same contents, they will share the same blob
object. The object is totally independent of its location in the
directory tree, and renaming a file does not change the object that
file is associated with in any way.
A blob is typically created when gitlink:git-update-index[1]
(or gitlink:git-add[1]) is run, and its data can be accessed by
gitlink:git-cat-file[1].
Tree Object
~~~~~~~~~~~
The next hierarchical object type is the "tree" object. A tree object
is a list of mode/name/blob data, sorted by name. Alternatively, the
mode data may specify a directory mode, in which case instead of
naming a blob, that name is associated with another TREE object.
Like the "blob" object, a tree object is uniquely determined by the
set contents, and so two separate but identical trees will always
share the exact same object. This is true at all levels, i.e. it's
true for a "leaf" tree (which does not refer to any other trees, only
blobs) as well as for a whole subdirectory.
For that reason a "tree" object is just a pure data abstraction: it
has no history, no signatures, no verification of validity, except
that since the contents are again protected by the hash itself, we can
trust that the tree is immutable and its contents never change.
So you can trust the contents of a tree to be valid, the same way you
can trust the contents of a blob, but you don't know where those
contents 'came' from.
Side note on trees: since a "tree" object is a sorted list of
"filename+content", you can create a diff between two trees without
actually having to unpack two trees. Just ignore all common parts,
and your diff will look right. In other words, you can effectively
(and efficiently) tell the difference between any two random trees by
O(n) where "n" is the size of the difference, rather than the size of
the tree.
Side note 2 on trees: since the name of a "blob" depends entirely and
exclusively on its contents (i.e. there are no names or permissions
involved), you can see trivial renames or permission changes by
noticing that the blob stayed the same. However, renames with data
changes need a smarter "diff" implementation.
A tree is created with gitlink:git-write-tree[1] and
its data can be accessed by gitlink:git-ls-tree[1].
Two trees can be compared with gitlink:git-diff-tree[1].
Commit Object
~~~~~~~~~~~~~
The "commit" object is an object that introduces the notion of
history into the picture. In contrast to the other objects, it
doesn't just describe the physical state of a tree, it describes how
we got there, and why.
A "commit" is defined by the tree-object that it results in, the
parent commits (zero, one or more) that led up to that point, and a
comment on what happened. Again, a commit is not trusted per se:
the contents are well-defined and "safe" due to the cryptographically
strong signatures at all levels, but there is no reason to believe
that the tree is "good" or that the merge information makes sense.
The parents do not have to actually have any relationship with the
result, for example.
Note on commits: unlike real SCM's, commits do not contain
rename information or file mode change information. All of that is
implicit in the trees involved (the result tree, and the result trees
of the parents), and describing that makes no sense in this idiotic
file manager.
A commit is created with gitlink:git-commit-tree[1] and
its data can be accessed by gitlink:git-cat-file[1].
Trust
~~~~~
An aside on the notion of "trust". Trust is really outside the scope
of "git", but it's worth noting a few things. First off, since
everything is hashed with SHA1, you 'can' trust that an object is
intact and has not been messed with by external sources. So the name
of an object uniquely identifies a known state - just not a state that
you may want to trust.
Furthermore, since the SHA1 signature of a commit refers to the
SHA1 signatures of the tree it is associated with and the signatures
of the parent, a single named commit specifies uniquely a whole set
of history, with full contents. You can't later fake any step of the
way once you have the name of a commit.
So to introduce some real trust in the system, the only thing you need
to do is to digitally sign just 'one' special note, which includes the
name of a top-level commit. Your digital signature shows others
that you trust that commit, and the immutability of the history of
commits tells others that they can trust the whole history.
In other words, you can easily validate a whole archive by just
sending out a single email that tells the people the name (SHA1 hash)
of the top commit, and digitally sign that email using something
like GPG/PGP.
To assist in this, git also provides the tag object...
Tag Object
~~~~~~~~~~
Git provides the "tag" object to simplify creating, managing and
exchanging symbolic and signed tokens. The "tag" object at its
simplest simply symbolically identifies another object by containing
the sha1, type and symbolic name.
However it can optionally contain additional signature information
(which git doesn't care about as long as there's less than 8k of
it). This can then be verified externally to git.
Note that despite the tag features, "git" itself only handles content
integrity; the trust framework (and signature provision and
verification) has to come from outside.
A tag is created with gitlink:git-mktag[1],
its data can be accessed by gitlink:git-cat-file[1],
and the signature can be verified by
gitlink:git-verify-tag[1].
The "index" aka "Current Directory Cache"
-----------------------------------------
The index is a simple binary file, which contains an efficient
representation of a virtual directory content at some random time. It
does so by a simple array that associates a set of names, dates,
permissions and content (aka "blob") objects together. The cache is
always kept ordered by name, and names are unique (with a few very
specific rules) at any point in time, but the cache has no long-term
meaning, and can be partially updated at any time.
In particular, the index certainly does not need to be consistent with
the current directory contents (in fact, most operations will depend on
different ways to make the index 'not' be consistent with the directory
hierarchy), but it has three very important attributes:
'(a) it can re-generate the full state it caches (not just the
directory structure: it contains pointers to the "blob" objects so
that it can regenerate the data too)'
As a special case, there is a clear and unambiguous one-way mapping
from a current directory cache to a "tree object", which can be
efficiently created from just the current directory cache without
actually looking at any other data. So a directory cache at any one
time uniquely specifies one and only one "tree" object (but has
additional data to make it easy to match up that tree object with what
has happened in the directory)
'(b) it has efficient methods for finding inconsistencies between that
cached state ("tree object waiting to be instantiated") and the
current state.'
'(c) it can additionally efficiently represent information about merge
conflicts between different tree objects, allowing each pathname to be
associated with sufficient information about the trees involved that
you can create a three-way merge between them.'
Those are the three ONLY things that the directory cache does. It's a
cache, and the normal operation is to re-generate it completely from a
known tree object, or update/compare it with a live tree that is being
developed. If you blow the directory cache away entirely, you generally
haven't lost any information as long as you have the name of the tree
that it described.
At the same time, the index is at the same time also the
staging area for creating new trees, and creating a new tree always
involves a controlled modification of the index file. In particular,
the index file can have the representation of an intermediate tree that
has not yet been instantiated. So the index can be thought of as a
write-back cache, which can contain dirty information that has not yet
been written back to the backing store.
The Workflow
------------
Generally, all "git" operations work on the index file. Some operations
work *purely* on the index file (showing the current state of the
index), but most operations move data to and from the index file. Either
from the database or from the working directory. Thus there are four
main combinations:
1) working directory -> index
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You update the index with information from the working directory with
the gitlink:git-update-index[1] command. You
generally update the index information by just specifying the filename
you want to update, like so:
git-update-index filename
but to avoid common mistakes with filename globbing etc, the command
will not normally add totally new entries or remove old entries,
i.e. it will normally just update existing cache entries.
To tell git that yes, you really do realize that certain files no
longer exist, or that new files should be added, you
should use the `--remove` and `--add` flags respectively.
NOTE! A `--remove` flag does 'not' mean that subsequent filenames will
necessarily be removed: if the files still exist in your directory
structure, the index will be updated with their new status, not
removed. The only thing `--remove` means is that update-cache will be
considering a removed file to be a valid thing, and if the file really
does not exist any more, it will update the index accordingly.
As a special case, you can also do `git-update-index --refresh`, which
will refresh the "stat" information of each index to match the current
stat information. It will 'not' update the object status itself, and
it will only update the fields that are used to quickly test whether
an object still matches its old backing store object.
2) index -> object database
~~~~~~~~~~~~~~~~~~~~~~~~~~~
You write your current index file to a "tree" object with the program
git-write-tree
that doesn't come with any options - it will just write out the
current index into the set of tree objects that describe that state,
and it will return the name of the resulting top-level tree. You can
use that tree to re-generate the index at any time by going in the
other direction:
3) object database -> index
~~~~~~~~~~~~~~~~~~~~~~~~~~~
You read a "tree" file from the object database, and use that to
populate (and overwrite - don't do this if your index contains any
unsaved state that you might want to restore later!) your current
index. Normal operation is just
git-read-tree <sha1 of tree>
and your index file will now be equivalent to the tree that you saved
earlier. However, that is only your 'index' file: your working
directory contents have not been modified.
4) index -> working directory
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You update your working directory from the index by "checking out"
files. This is not a very common operation, since normally you'd just
keep your files updated, and rather than write to your working
directory, you'd tell the index files about the changes in your
working directory (i.e. `git-update-index`).
However, if you decide to jump to a new version, or check out somebody
else's version, or just restore a previous tree, you'd populate your
index file with read-tree, and then you need to check out the result
with
git-checkout-index filename
or, if you want to check out all of the index, use `-a`.
NOTE! git-checkout-index normally refuses to overwrite old files, so
if you have an old version of the tree already checked out, you will
need to use the "-f" flag ('before' the "-a" flag or the filename) to
'force' the checkout.
Finally, there are a few odds and ends which are not purely moving
from one representation to the other:
5) Tying it all together
~~~~~~~~~~~~~~~~~~~~~~~~
To commit a tree you have instantiated with "git-write-tree", you'd
create a "commit" object that refers to that tree and the history
behind it - most notably the "parent" commits that preceded it in
history.
Normally a "commit" has one parent: the previous state of the tree
before a certain change was made. However, sometimes it can have two
or more parent commits, in which case we call it a "merge", due to the
fact that such a commit brings together ("merges") two or more
previous states represented by other commits.
In other words, while a "tree" represents a particular directory state
of a working directory, a "commit" represents that state in "time",
and explains how we got there.
You create a commit object by giving it the tree that describes the
state at the time of the commit, and a list of parents:
git-commit-tree <tree> -p <parent> [-p <parent2> ..]
and then giving the reason for the commit on stdin (either through
redirection from a pipe or file, or by just typing it at the tty).
git-commit-tree will return the name of the object that represents
that commit, and you should save it away for later use. Normally,
you'd commit a new `HEAD` state, and while git doesn't care where you
save the note about that state, in practice we tend to just write the
result to the file pointed at by `.git/HEAD`, so that we can always see
what the last committed state was.
Here is an ASCII art by Jon Loeliger that illustrates how
various pieces fit together.
------------
commit-tree
commit obj
+----+
| |
| |
V V
+-----------+
| Object DB |
| Backing |
| Store |
+-----------+
^
write-tree | |
tree obj | |
| | read-tree
| | tree obj
V
+-----------+
| Index |
| "cache" |
+-----------+
update-index ^
blob obj | |
| |
checkout-index -u | | checkout-index
stat | | blob obj
V
+-----------+
| Working |
| Directory |
+-----------+
------------
6) Examining the data
~~~~~~~~~~~~~~~~~~~~~
You can examine the data represented in the object database and the
index with various helper tools. For every object, you can use
gitlink:git-cat-file[1] to examine details about the
object:
git-cat-file -t <objectname>
shows the type of the object, and once you have the type (which is
usually implicit in where you find the object), you can use
git-cat-file blob|tree|commit|tag <objectname>
to show its contents. NOTE! Trees have binary content, and as a result
there is a special helper for showing that content, called
`git-ls-tree`, which turns the binary content into a more easily
readable form.
It's especially instructive to look at "commit" objects, since those
tend to be small and fairly self-explanatory. In particular, if you
follow the convention of having the top commit name in `.git/HEAD`,
you can do
git-cat-file commit HEAD
to see what the top commit was.
7) Merging multiple trees
~~~~~~~~~~~~~~~~~~~~~~~~~
Git helps you do a three-way merge, which you can expand to n-way by
repeating the merge procedure arbitrary times until you finally
"commit" the state. The normal situation is that you'd only do one
three-way merge (two parents), and commit it, but if you like to, you
can do multiple parents in one go.
To do a three-way merge, you need the two sets of "commit" objects
that you want to merge, use those to find the closest common parent (a
third "commit" object), and then use those commit objects to find the
state of the directory ("tree" object) at these points.
To get the "base" for the merge, you first look up the common parent
of two commits with
git-merge-base <commit1> <commit2>
which will return you the commit they are both based on. You should
now look up the "tree" objects of those commits, which you can easily
do with (for example)
git-cat-file commit <commitname> | head -1
since the tree object information is always the first line in a commit
object.
Once you know the three trees you are going to merge (the one
"original" tree, aka the common case, and the two "result" trees, aka
the branches you want to merge), you do a "merge" read into the
index. This will complain if it has to throw away your old index contents, so you should
make sure that you've committed those - in fact you would normally
always do a merge against your last commit (which should thus match
what you have in your current index anyway).
To do the merge, do
git-read-tree -m -u <origtree> <yourtree> <targettree>
which will do all trivial merge operations for you directly in the
index file, and you can just write the result out with
`git-write-tree`.
Historical note. We did not have `-u` facility when this
section was first written, so we used to warn that
the merge is done in the index file, not in your
working tree, and your working tree will not match your
index after this step.
This is no longer true. The above command, thanks to `-u`
option, updates your working tree with the merge results for
paths that have been trivially merged.
8) Merging multiple trees, continued
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sadly, many merges aren't trivial. If there are files that have
been added, moved or removed, or if both branches have modified the
same file, you will be left with an index tree that contains "merge
entries" in it. Such an index tree can 'NOT' be written out to a tree
object, and you will have to resolve any such merge clashes using
other tools before you can write out the result.
You can examine such index state with `git-ls-files --unmerged`
command. An example:
------------------------------------------------
$ git-read-tree -m $orig HEAD $target
$ git-ls-files --unmerged
100644 263414f423d0e4d70dae8fe53fa34614ff3e2860 1 hello.c
100644 06fa6a24256dc7e560efa5687fa84b51f0263c3a 2 hello.c
100644 cc44c73eb783565da5831b4d820c962954019b69 3 hello.c
------------------------------------------------
Each line of the `git-ls-files --unmerged` output begins with
the blob mode bits, blob SHA1, 'stage number', and the
filename. The 'stage number' is git's way to say which tree it
came from: stage 1 corresponds to `$orig` tree, stage 2 `HEAD`
tree, and stage3 `$target` tree.
Earlier we said that trivial merges are done inside
`git-read-tree -m`. For example, if the file did not change
from `$orig` to `HEAD` nor `$target`, or if the file changed
from `$orig` to `HEAD` and `$orig` to `$target` the same way,
obviously the final outcome is what is in `HEAD`. What the
above example shows is that file `hello.c` was changed from
`$orig` to `HEAD` and `$orig` to `$target` in a different way.
You could resolve this by running your favorite 3-way merge
program, e.g. `diff3` or `merge`, on the blob objects from
these three stages yourself, like this:
------------------------------------------------
$ git-cat-file blob 263414f... >hello.c~1
$ git-cat-file blob 06fa6a2... >hello.c~2
$ git-cat-file blob cc44c73... >hello.c~3
$ merge hello.c~2 hello.c~1 hello.c~3
------------------------------------------------
This would leave the merge result in `hello.c~2` file, along
with conflict markers if there are conflicts. After verifying
the merge result makes sense, you can tell git what the final
merge result for this file is by:
mv -f hello.c~2 hello.c
git-update-index hello.c
When a path is in unmerged state, running `git-update-index` for
that path tells git to mark the path resolved.
The above is the description of a git merge at the lowest level,
to help you understand what conceptually happens under the hood.
In practice, nobody, not even git itself, uses three `git-cat-file`
for this. There is `git-merge-index` program that extracts the
stages to temporary files and calls a "merge" script on it:
git-merge-index git-merge-one-file hello.c
and that is what higher level `git merge -s resolve` is implemented
with.

65
Documentation/core-tutorial.txt
View File

@@ -4,34 +4,24 @@ A git core tutorial for developers
Introduction
------------
This is trying to be a short tutorial on setting up and using a git
repository, mainly because being hands-on and using explicit examples is
often the best way of explaining what is going on.
This tutorial explains how to use the "core" git programs to set up and
work with a git repository.
In normal life, most people wouldn't use the "core" git programs
directly, but rather script around them to make them more palatable.
Understanding the core git stuff may help some people get those scripts
done, though, and it may also be instructive in helping people
understand what it is that the higher-level helper scripts are actually
doing.
If you just need to use git as a revision control system you may prefer
to start with link:tutorial.html[a tutorial introduction to git] or
link:user-manual.html[the git user manual].
However, an understanding of these low-level tools can be helpful if
you want to understand git's internals.
The core git is often called "plumbing", with the prettier user
interfaces on top of it called "porcelain". You may not want to use the
plumbing directly very often, but it can be good to know what the
plumbing does for when the porcelain isn't flushing.
The material presented here often goes deep describing how things
work internally. If you are mostly interested in using git as a
SCM, you can skip them during your first pass.
[NOTE]
And those "too deep" descriptions are often marked as Note.
[NOTE]
If you are already familiar with another version control system,
like CVS, you may want to take a look at
link:everyday.html[Everyday GIT in 20 commands or so] first
before reading this.
Deeper technical details are often marked as Notes, which you can
skip on your first reading.
Creating a git repository
@@ -563,13 +553,8 @@ can explore on your own.
[NOTE]
Most likely, you are not directly using the core
git Plumbing commands, but using Porcelain like Cogito on top
of it. Cogito works a bit differently and you usually do not
have to run `git-update-index` yourself for changed files (you
do tell underlying git about additions and removals via
`cg-add` and `cg-rm` commands). Just before you make a commit
with `cg-commit`, Cogito figures out which files you modified,
and runs `git-update-index` on them for you.
git Plumbing commands, but using Porcelain such as `git-add`, `git-rm'
and `git-commit'.
Tagging a version
@@ -696,8 +681,8 @@ $ git reset
and in fact a lot of the common git command combinations can be scripted
with the `git xyz` interfaces. You can learn things by just looking
at what the various git scripts do. For example, `git reset` is the
above two lines implemented in `git-reset`, but some things like
at what the various git scripts do. For example, `git reset` used to be
the above two lines implemented in `git-reset`, but some things like
`git status` and `git commit` are slightly more complex scripts around
the basic git commands.
@@ -815,8 +800,8 @@ you have, you can say
$ git branch
------------
which is nothing more than a simple script around `ls .git/refs/heads`.
There will be asterisk in front of the branch you are currently on.
which used to be nothing more than a simple script around `ls .git/refs/heads`.
There will be an asterisk in front of the branch you are currently on.
Sometimes you may wish to create a new branch _without_ actually
checking it out and switching to it. If so, just use the command
@@ -893,7 +878,7 @@ script called `git merge`, which wants to know which branches you want
to resolve and what the merge is all about:
------------
$ git merge "Merge work in mybranch" HEAD mybranch
$ git merge -m "Merge work in mybranch" mybranch
------------
where the first argument is going to be used as the commit message if
@@ -962,7 +947,7 @@ 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.
All of them have non blank characters in the first column (`*`
shows an ordinary commit on the current branch, `.` is a merge commit), which
shows an ordinary commit on the current branch, `-` is a merge commit), which
means they are now part of the `master` branch. Only the "Some
work" commit has the plus `+` character in the second column,
because `mybranch` has not been merged to incorporate these
@@ -980,7 +965,7 @@ to the `master` branch. Let's go back to `mybranch`, and run
------------
$ git checkout mybranch
$ git merge "Merge upstream changes." HEAD master
$ git merge -m "Merge upstream changes." master
------------
This outputs something like this (the actual commit object names
@@ -1096,7 +1081,7 @@ to help dumb transport downloaders.
There are (confusingly enough) `git-ssh-fetch` and `git-ssh-upload`
programs, which are 'commit walkers'; they outlived their
usefulness when git Native and SSH transports were introduced,
and not used by `git pull` or `git push` scripts.
and are not used by `git pull` or `git push` scripts.
Once you fetch from the remote repository, you `merge` that
with your current branch.
@@ -1203,7 +1188,7 @@ $ mb=$(git-merge-base HEAD mybranch)
The command writes the commit object name of the common ancestor
to the standard output, so we captured its output to a variable,
because we will be using it in the next step. BTW, the common
because we will be using it in the next step. By the way, the common
ancestor commit is the "New day." commit in this case. You can
tell it by:
@@ -1469,7 +1454,7 @@ Although git is a truly distributed system, it is often
convenient to organize your project with an informal hierarchy
of developers. Linux kernel development is run this way. There
is a nice illustration (page 17, "Merges to Mainline") in
link:http://tinyurl.com/a2jdg[Randy Dunlap's presentation].
link:http://www.xenotime.net/linux/mentor/linux-mentoring-2006.pdf[Randy Dunlap's presentation].
It should be stressed that this hierarchy is purely *informal*.
There is nothing fundamental in git that enforces the "chain of
@@ -1622,8 +1607,8 @@ in both of them. You could merge in 'diff-fix' first and then
'commit-fix' next, like this:
------------
$ git merge 'Merge fix in diff-fix' master diff-fix
$ git merge 'Merge fix in commit-fix' master commit-fix
$ git merge -m 'Merge fix in diff-fix' diff-fix
$ git merge -m 'Merge fix in commit-fix' commit-fix
------------
Which would result in:
@@ -1686,5 +1671,3 @@ merge two at a time, documenting how you resolved the conflicts,
and the reason why you preferred changes made in one side over
the other. Otherwise it would make the project history harder
to follow, not easier.
[ to be continued.. cvsimports ]

4
Documentation/diff-options.txt
View File

@@ -179,8 +179,8 @@
--ext-diff::
Allow an external diff helper to be executed. If you set an
external diff driver with gitlink:gitattributes(5), you need
to use this option with gitlink:git-log(1) and friends.
external diff driver with gitlink:gitattributes[5], you need
to use this option with gitlink:git-log[1] and friends.
--no-ext-diff::
Disallow external diff drivers.

11
Documentation/git-apply.txt
View File

@@ -10,7 +10,7 @@ SYNOPSIS
--------
[verse]
'git-apply' [--stat] [--numstat] [--summary] [--check] [--index]
[--apply] [--no-add] [--index-info] [-R | --reverse]
[--apply] [--no-add] [--build-fake-ancestor <file>] [-R | --reverse]
[--allow-binary-replacement | --binary] [--reject] [-z]
[-pNUM] [-CNUM] [--inaccurate-eof] [--cached]
[--whitespace=<nowarn|warn|error|error-all|strip>]
@@ -63,12 +63,15 @@ OPTIONS
cached data, apply the patch, and store the result in the index,
without using the working tree. This implies '--index'.
--index-info::
--build-fake-ancestor <file>::
Newer git-diff output has embedded 'index information'
for each blob to help identify the original version that
the patch applies to. When this flag is given, and if
the original version of the blob is available locally,
outputs information about them to the standard output.
the original versions of the blobs is available locally,
builds a temporary index containing those blobs.
+
When a pure mode change is encountered (which has no index information),
the information is read from the current index instead.
-R, --reverse::
Apply the patch in reverse.

12
Documentation/git-archive.txt
View File

@@ -10,12 +10,14 @@ SYNOPSIS
--------
[verse]
'git-archive' --format=<fmt> [--list] [--prefix=<prefix>/] [<extra>]
[--remote=<repo>] <tree-ish> [path...]
[--remote=<repo> [--exec=<git-upload-archive>]] <tree-ish>
[path...]
DESCRIPTION
-----------
Creates an archive of the specified format containing the tree
structure for the named tree. If <prefix> is specified it is
structure for the named tree, and writes it out to the standard
output. If <prefix> is specified it is
prepended to the filenames in the archive.
'git-archive' behaves differently when given a tree ID versus when
@@ -31,7 +33,7 @@ OPTIONS
-------
--format=<fmt>::
Format of the resulting archive: 'tar', 'zip'... The default
Format of the resulting archive: 'tar' or 'zip'. The default
is 'tar'.
--list, -l::
@@ -51,6 +53,10 @@ OPTIONS
Instead of making a tar archive from local repository,
retrieve a tar archive from a remote repository.
--exec=<git-upload-archive>::
Used with --remote to specify the path to the
git-upload-archive executable on the remote side.
<tree-ish>::
The tree or commit to produce an archive for.

29
Documentation/git-bisect.txt
View File

@@ -16,8 +16,9 @@ The command takes various subcommands, and different options depending
on the subcommand:
git bisect start [<bad> [<good>...]] [--] [<paths>...]
git bisect bad <rev>
git bisect good <rev>
git bisect bad [<rev>]
git bisect good [<rev>...]
git bisect skip [<rev>...]
git bisect reset [<branch>]
git bisect visualize
git bisect replay <logfile>
@@ -134,6 +135,20 @@ $ git reset --hard HEAD~3 # try 3 revs before what
Then compile and test the one you chose to try. After that, tell
bisect what the result was as usual.
Bisect skip
~~~~~~~~~~~~
Instead of choosing by yourself a nearby commit, you may just want git
to do it for you using:
------------
$ git bisect skip # Current version cannot be tested
------------
But computing the commit to test may be slower afterwards and git may
eventually not be able to tell the first bad among a bad and one or
more "skip"ped commits.
Cutting down bisection by giving more parameters to bisect start
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -167,14 +182,18 @@ $ git bisect run my_script
------------
Note that the "run" script (`my_script` in the above example) should
exit with code 0 in case the current source code is good and with a
code between 1 and 127 (included) in case the current source code is
bad.
exit with code 0 in case the current source code is good. Exit with a
code between 1 and 127 (inclusive), except 125, if the current
source code is bad.
Any other exit code will abort the automatic bisect process. (A
program that does "exit(-1)" leaves $? = 255, see exit(3) manual page,
the value is chopped with "& 0377".)
The special exit code 125 should be used when the current source code
cannot be tested. If the "run" script exits with this code, the current
revision will be skipped, see `git bisect skip` above.
You may often find that during bisect you want to have near-constant
tweaks (e.g., s/#define DEBUG 0/#define DEBUG 1/ in a header file, or
"revision that does not have this commit needs this patch applied to

19
Documentation/git-branch.txt
View File

@@ -26,6 +26,10 @@ 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.
Note that this will create the new branch, but it will not switch the
working tree to it; use "git checkout <newbranch>" to switch to the
new branch.
When a local branch is started off a remote branch, git can setup the
branch so that gitlink:git-pull[1] will appropriately merge from that
remote branch. If this behavior is desired, it is possible to make it
@@ -91,6 +95,21 @@ OPTIONS
--no-abbrev::
Display the full sha1s in output listing rather than abbreviating them.
--track::
Set up configuration so that git-pull will automatically
retrieve data from the remote branch. Use this if you always
pull from the same remote branch into the new branch, or if you
don't want to use "git pull <repository> <refspec>" explicitly. Set the
branch.autosetupmerge configuration variable to true if you
want git-checkout and git-branch to always behave as if
'--track' were given.
--no-track::
When -b is given and a branch is created off a remote branch,
set up configuration so that git-pull will not retrieve data
from the remote branch, ignoring the branch.autosetupmerge
configuration variable.
<branchname>::
The name of the branch to create or delete.
The new branch name must pass all checks defined by

8
Documentation/git-bundle.txt
View File

@@ -103,14 +103,20 @@ We set a tag in R1 (lastR2bundle) after the previous such transport,
and move it afterwards to help build the bundle.
in R1 on A:
------------
$ git-bundle create mybundle master ^lastR2bundle
$ git tag -f lastR2bundle master
------------
(move mybundle from A to B by some mechanism)
in R2 on B:
------------
$ git-bundle verify mybundle
$ git-fetch mybundle refspec
------------
where refspec is refInBundle:localRef
@@ -124,9 +130,11 @@ Also, with something like this in your config:
You can first sneakernet the bundle file to ~/tmp/file.bdl and
then these commands:
------------
$ git ls-remote bundle
$ git fetch bundle
$ git pull bundle
------------
would treat it as if it is talking with a remote side over the
network.

4
Documentation/git-checkout.txt
View File

@@ -50,7 +50,9 @@ OPTIONS
--track::
When -b is given and a branch is created off a remote branch,
set up configuration so that git-pull will automatically
retrieve data from the remote branch. Set the
retrieve data from the remote branch. Use this if you always
pull from the same remote branch into the new branch, or if you
don't want to use "git pull <repository> <refspec>" explicitly. Set the
branch.autosetupmerge configuration variable to true if you
want git-checkout and git-branch to always behave as if
'--track' were given.

11
Documentation/git-cherry-pick.txt
View File

@@ -27,11 +27,12 @@ OPTIONS
message prior committing.
-x::
Cause the command to append which commit was
cherry-picked after the original commit message when
making a commit. Do not use this option if you are
cherry-picking from your private branch because the
information is useless to the recipient. If on the
When recording the commit, append to the original commit
message a note that indicates which commit this change
was cherry-picked from. Append the note only for cherry
picks without conflicts. Do not use this option if
you are cherry-picking from your private branch because
the information is useless to the recipient. If on the
other hand you are cherry-picking between two publicly
visible branches (e.g. backporting a fix to a
maintenance branch for an older release from a

8
Documentation/git-clone.txt
View File

@@ -68,7 +68,7 @@ OPTIONS
automatically setup .git/objects/info/alternates to
obtain objects from the reference repository. Using
an already existing repository as an alternate will
require less objects to be copied from the repository
require fewer objects to be copied from the repository
being cloned, reducing network and local storage costs.
--quiet::
@@ -111,11 +111,11 @@ OPTIONS
--depth <depth>::
Create a 'shallow' clone with a history truncated to the
specified number of revs. A shallow repository has
specified number of revisions. A shallow repository has a
number of limitations (you cannot clone or fetch from
it, nor push from nor into it), but is adequate if you
want to only look at near the tip of a large project
with a long history, and would want to send in a fixes
are only interested in the recent history of a large project
with a long history, and would want to send in fixes
as patches.
<repository>::

2
Documentation/git-config.txt
View File

@@ -142,7 +142,7 @@ FILES
If not set explicitly with '--file', there are three files where
git-config will search for configuration options:
.git/config::
$GIT_DIR/config::
Repository specific configuration file. (The filename is
of course relative to the repository root, not the working
directory.)

2
Documentation/git-cvsexportcommit.txt
View File

@@ -73,7 +73,7 @@ Merge one patch into CVS::
$ export GIT_DIR=~/project/.git
$ cd ~/project_cvs_checkout
$ git-cvsexportcommit -v <commit-sha1>
$ cvs commit -F .mgs <files>
$ cvs commit -F .msg <files>
------------
Merge pending patches into CVS automatically -- only if you really know what you are doing::

2
Documentation/git-diff.txt
View File

@@ -125,7 +125,7 @@ $ git diff topic...master <3>
+
<1> Changes between the tips of the topic and the master branches.
<2> Same as above.
<3> Changes that occured on the master branch since when the topic
<3> Changes that occurred on the master branch since when the topic
branch was started off it.
Limiting the diff output::

10
Documentation/git-filter-branch.txt
View File

@@ -180,8 +180,7 @@ A significantly faster version:
git filter-branch --index-filter 'git update-index --remove filename' HEAD
--------------------------------------------------------------------------
Now, you will get the rewritten history saved in the branch 'newbranch'
(your current branch is left untouched).
Now, you will get the rewritten history saved in HEAD.
To set a commit (which typically is at the tip of another
history) to be the parent of the current initial commit, in
@@ -220,12 +219,7 @@ git filter-branch --commit-filter '
fi' HEAD
------------------------------------------------------------------------------
Note that the changes introduced by the commits, and not reverted by
subsequent commits, will still be in the rewritten branch. If you want
to throw out _changes_ together with the commits, you should use the
interactive mode of gitlink:git-rebase[1].
The function 'skip_commits' is defined as follows:
The function 'skip_commit' is defined as follows:
--------------------------
skip_commit()

5
Documentation/git-for-each-ref.txt
View File

@@ -100,6 +100,11 @@ In any case, a field name that refers to a field inapplicable to
the object referred by the ref does not cause an error. It
returns an empty string instead.
As a special case for the date-type fields, you may specify a format for
the date by adding one of `:default`, `:relative`, `:short`, `:local`,
`:iso8601` or `:rfc2822` to the end of the fieldname; e.g.
`%(taggerdate:relative)`.
EXAMPLES
--------

2
Documentation/git-format-patch.txt
View File

@@ -168,7 +168,7 @@ git-format-patch origin::
is created in the current directory.
git-format-patch \--root origin::
Extract all commits which that leads to 'origin' since the
Extract all commits that lead to 'origin' since the
inception of the project.
git-format-patch -M -B origin::

24
Documentation/git-gc.txt
View File

@@ -8,7 +8,7 @@ git-gc - Cleanup unnecessary files and optimize the local repository
SYNOPSIS
--------
'git-gc' [--prune] [--aggressive]
'git-gc' [--prune] [--aggressive] [--auto]
DESCRIPTION
-----------
@@ -19,7 +19,8 @@ created from prior invocations of gitlink:git-add[1].
Users are encouraged to run this task on a regular basis within
each repository to maintain good disk space utilization and good
operating performance.
operating performance. Some git commands may automatically run
`git-gc`; see the `--auto` flag below for details.
OPTIONS
-------
@@ -43,6 +44,25 @@ OPTIONS
persistent, so this option only needs to be used occasionally; every
few hundred changesets or so.
--auto::
With this option, `git gc` checks whether any housekeeping is
required; if not, it exits without performing any work.
Some git commands run `git gc --auto` after performing
operations that could create many loose objects.
+
Housekeeping is required if there are too many loose objects or
too many packs in the repository. If the number of loose objects
exceeds the value of the `gc.auto` configuration variable, then
all loose objects are combined into a single pack using
`git-repack -d -l`. Setting the value of `gc.auto` to 0
disables automatic packing of loose objects.
+
If the number of packs exceeds the value of `gc.autopacklimit`,
then existing packs (except those marked with a `.keep` file)
are consolidated into a single pack by using the `-A` option of
`git-repack`. Setting `gc.autopacklimit` to 0 disables
automatic consolidation of packs.
Configuration
-------------

5
Documentation/git-http-push.txt
View File

@@ -8,7 +8,7 @@ git-http-push - Push objects over HTTP/DAV to another repository
SYNOPSIS
--------
'git-http-push' [--all] [--force] [--verbose] <url> <ref> [<ref>...]
'git-http-push' [--all] [--dry-run] [--force] [--verbose] <url> <ref> [<ref>...]
DESCRIPTION
-----------
@@ -30,6 +30,9 @@ OPTIONS
the remote repository can lose commits; use it with
care.
--dry-run::
Do everything except actually send the updates.
--verbose::
Report the list of objects being walked locally and the
list of objects successfully sent to the remote repository.

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

@@ -43,7 +43,7 @@ OPTIONS
a default name determined from the pack content. If
<pack-file> is not specified consider using --keep to
prevent a race condition between this process and
gitlink::git-repack[1] .
gitlink::git-repack[1].
--fix-thin::
It is possible for gitlink:git-pack-objects[1] to build

2
Documentation/git-instaweb.txt
View File

@@ -27,7 +27,7 @@ OPTIONS
The HTTP daemon command-line that will be executed.
Command-line options may be specified here, and the
configuration file will be added at the end of the command-line.
Currently, lighttpd and apache2 are the only supported servers.
Currently lighttpd, apache2 and webrick are supported.
(Default: lighttpd)
-m|--module-path::

2
Documentation/git-lost-found.txt
View File

@@ -65,7 +65,7 @@ $ git rev-parse not-lost-anymore
Author
------
Written by Junio C Hamano 濱野 純 <junkio@cox.net>
Written by Junio C Hamano <gitster@pobox.com>
Documentation
--------------

9
Documentation/git-ls-files.txt
View File

@@ -15,7 +15,7 @@ SYNOPSIS
[-x <pattern>|--exclude=<pattern>]
[-X <file>|--exclude-from=<file>]
[--exclude-per-directory=<file>]
[--error-unmatch]
[--error-unmatch] [--with-tree=<tree-ish>]
[--full-name] [--abbrev] [--] [<file>]\*
DESCRIPTION
@@ -81,6 +81,13 @@ OPTIONS
If any <file> does not appear in the index, treat this as an
error (return 1).
--with-tree=<tree-ish>::
When using --error-unmatch to expand the user supplied
<file> (i.e. path pattern) arguments to paths, pretend
that paths which were removed in the index since the
named <tree-ish> are still present. Using this option
with `-s` or `-u` options does not make any sense.
-t::
Identify the file status with the following tags (followed by
a space) at the start of each line:

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

@@ -40,7 +40,7 @@ If "git-merge-index" is called with multiple <file>s (or -a) then it
processes them in turn only stopping if merge returns a non-zero exit
code.
Typically this is run with the a script calling git's imitation of
Typically this is run with a script calling git's imitation of
the merge command from the RCS package.
A sample script called "git-merge-one-file" is included in the

17
Documentation/git-merge.txt
View File

@@ -11,26 +11,27 @@ SYNOPSIS
[verse]
'git-merge' [-n] [--summary] [--no-commit] [--squash] [-s <strategy>]...
[-m <msg>] <remote> <remote>...
'git-merge' <msg> HEAD <remote>...
DESCRIPTION
-----------
This is the top-level interface to the merge machinery
which drives multiple merge strategy scripts.
The second syntax (<msg> `HEAD` <remote>) is supported for
historical reasons. Do not use it from the command line or in
new scripts. It is the same as `git merge -m <msg> <remote>`.
OPTIONS
-------
include::merge-options.txt[]
<msg>::
-m <msg>::
The commit message to be used for the merge commit (in case
it is created). The `git-fmt-merge-msg` script can be used
to give a good default for automated `git-merge` invocations.
<head>::
Our branch head commit. This has to be `HEAD`, so new
syntax does not require it
<remote>::
Other branch head merged into our branch. You need at
least one <remote>. Specifying more than one <remote>
@@ -56,8 +57,12 @@ merge.verbosity::
message if conflicts were detected. Level 1 outputs only
conflicts, 2 outputs conflicts and file changes. Level 5 and
above outputs debugging information. The default is level 2.
Can be overriden by 'GIT_MERGE_VERBOSITY' environment variable.
Can be overridden by 'GIT_MERGE_VERBOSITY' environment variable.
branch.<name>.mergeoptions::
Sets default options for merging into branch <name>. The syntax and
supported options are equal to that of git-merge, but option values
containing whitespace characters are currently not supported.
HOW MERGE WORKS
---------------

8
Documentation/git-mergetool.txt
View File

@@ -25,12 +25,18 @@ OPTIONS
-t or --tool=<tool>::
Use the merge resolution program specified by <tool>.
Valid merge tools are:
kdiff3, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff, and opendiff
kdiff3, tkdiff, meld, xxdiff, emerge, vimdiff, gvimdiff, ecmerge, and opendiff
+
If a merge resolution program is not specified, 'git mergetool'
will use the configuration variable merge.tool. If the
configuration variable merge.tool is not set, 'git mergetool'
will pick a suitable default.
+
You can explicitly provide a full path to the tool by setting the
configuration variable mergetool.<tool>.path. For example, you
can configure the absolute path to kdiff3 by setting
mergetool.kdiff3.path. Otherwise, 'git mergetool' assumes the tool
is available in PATH.
Author
------

24
Documentation/git-pack-objects.txt
View File

@@ -25,16 +25,16 @@ is efficient to access. The packed archive format (.pack) is
designed to be unpackable without having anything else, but for
random access, accompanied with the pack index file (.idx).
Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
enables git to read from such an archive.
'git-unpack-objects' command can read the packed archive and
expand the objects contained in the pack into "one-file
one-object" format; this is typically done by the smart-pull
commands when a pack is created on-the-fly for efficient network
transport by their peers.
Placing both in the pack/ subdirectory of $GIT_OBJECT_DIRECTORY (or
any of the directories on $GIT_ALTERNATE_OBJECT_DIRECTORIES)
enables git to read from such an archive.
In a packed archive, an object is either stored as a compressed
whole, or as a difference from some other object. The latter is
often called a delta.
@@ -155,12 +155,8 @@ base-name::
generated pack. If not specified, pack compression level is
determined first by pack.compression, then by core.compression,
and defaults to -1, the zlib default, if neither is set.
Data copied from loose objects will be recompressed
if core.legacyheaders was true when they were created or if
the loose compression level (see core.loosecompression and
core.compression) is now a different value than the pack
compression level. Add --no-reuse-object if you want to force
a uniform compression level on all data no matter the source.
Add \--no-reuse-object if you want to force a uniform compression
level on all data no matter the source.
--delta-base-offset::
A packed archive can express base object of a delta as
@@ -173,6 +169,14 @@ base-name::
length, this option typically shrinks the resulting
packfile by 3-5 per-cent.
--threads=<n>::
Specifies the number of threads to spawn when searching for best
delta matches. This requires that pack-objects be compiled with
pthreads otherwise this option is ignored with a warning.
This is meant to reduce packing time on multiprocessor machines.
The required amount of memory for the delta search window is
however multiplied by the number of threads.
--index-version=<version>[,<offset>]::
This is intended to be used by the test suite only. It allows
to force the version for the generated pack index, and to force

2
Documentation/git-prune-packed.txt
View File

@@ -13,7 +13,7 @@ SYNOPSIS
DESCRIPTION
-----------
This program search the `$GIT_OBJECT_DIR` for all objects that currently
This program searches the `$GIT_OBJECT_DIR` for all objects that currently
exist in a pack file as well as the independent object directories.
All such extra objects are removed.

15
Documentation/git-push.txt
View File

@@ -9,7 +9,7 @@ git-push - Update remote refs along with associated objects
SYNOPSIS
--------
[verse]
'git-push' [--all] [--tags] [--receive-pack=<git-receive-pack>]
'git-push' [--all] [--dry-run] [--tags] [--receive-pack=<git-receive-pack>]
[--repo=all] [-f | --force] [-v] [<repository> <refspec>...]
DESCRIPTION
@@ -48,7 +48,7 @@ even if it does not result in a fast forward update.
Note: If no explicit refspec is found, (that is neither
on the command line nor in any Push line of the
corresponding remotes file---see below), then all the
refs that exist both on the local side and on the remote
heads that exist both on the local side and on the remote
side are updated.
+
`tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`.
@@ -61,7 +61,10 @@ the remote repository.
\--all::
Instead of naming each ref to push, specifies that all
refs be pushed.
refs under `$GIT_DIR/refs/heads/` be pushed.
\--dry-run::
Do everything except actually send the updates.
\--tags::
All refs under `$GIT_DIR/refs/tags` are pushed, in
@@ -117,6 +120,12 @@ git push origin master:satellite/master::
the ref that matches `satellite/master` (most likely, it would
be `refs/remotes/satellite/master`) in `origin` repository with it.
git push origin master:refs/heads/experimental::
Create the branch `experimental` in the `origin` repository
by copying the current `master` branch. This form is usually
needed to create a new branch in the remote repository as
there is no `experimental` branch to match.
Author
------
Written by Junio C Hamano <junkio@cox.net>, later rewritten in C

36
Documentation/git-rebase.txt
View File

@@ -8,8 +8,9 @@ git-rebase - Forward-port local commits to the updated upstream head
SYNOPSIS
--------
[verse]
'git-rebase' [-i | --interactive] [-v | --verbose] [-m | --merge] [-C<n>]
[-p | --preserve-merges] [--onto <newbase>] <upstream> [<branch>]
'git-rebase' [-i | --interactive] [-v | --verbose] [-m | --merge]
[-C<n>] [ --whitespace=<option>] [-p | --preserve-merges]
[--onto <newbase>] <upstream> [<branch>]
'git-rebase' --continue | --skip | --abort
DESCRIPTION
@@ -27,7 +28,10 @@ The current branch is reset to <upstream>, or <newbase> if the
`git reset --hard <upstream>` (or <newbase>).
The commits that were previously saved into the temporary area are
then reapplied to the current branch, one by one, in order.
then reapplied to the current branch, one by one, in order. Note that
any commits in HEAD which introduce the same textual changes as a commit
in HEAD..<upstream> are omitted (i.e., a patch already accepted upstream
with a different commit message or timestamp will be skipped).
It is possible that a merge failure will prevent this process from being
completely automatic. You will have to resolve any such merge failure
@@ -61,6 +65,26 @@ would be:
The latter form is just a short-hand of `git checkout topic`
followed by `git rebase master`.
If the upstream branch already contains a change you have made (e.g.,
because you mailed a patch which was applied upstream), then that commit
will be skipped. For example, running `git-rebase master` on the
following history (in which A' and A introduce the same set of changes,
but have different committer information):
------------
A---B---C topic
/
D---E---A'---F master
------------
will result in:
------------
B'---C' topic
/
D---E---A'---F master
------------
Here is how you would transplant a topic branch based on one
branch to another, to pretend that you forked the topic branch
from the latter branch, using `rebase --onto`.
@@ -209,6 +233,10 @@ OPTIONS
context exist they all must match. By default no context is
ever ignored.
--whitespace=<nowarn|warn|error|error-all|strip>::
This flag is passed to the `git-apply` program
(see gitlink:git-apply[1]) that applies the patch.
-i, \--interactive::
Make a list of the commits which are about to be rebased. Let the
user edit that list before rebasing. This mode can also be used to
@@ -293,7 +321,7 @@ rebasing.
If you want to fold two or more commits into one, replace the command
"pick" with "squash" for the second and subsequent commit. If the
commits had different authors, it will attribute the squashed commit to
the author of the last commit.
the author of the first commit.
In both cases, or when a "pick" does not succeed (because of merge
errors), the loop will stop to let you fix things, and you can continue

5
Documentation/git-reflog.txt
View File

@@ -16,7 +16,7 @@ The command takes various subcommands, and different options
depending on the subcommand:
[verse]
git reflog expire [--dry-run] [--stale-fix]
git reflog expire [--dry-run] [--stale-fix] [--verbose]
[--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...
git reflog [show] [log-options]
@@ -68,6 +68,9 @@ them.
--all::
Instead of listing <refs> explicitly, prune all refs.
--verbose::
Print extra information on screen.
Author
------
Written by Junio C Hamano <junkio@cox.net>

12
Documentation/git-remote.txt
View File

@@ -10,7 +10,8 @@ SYNOPSIS
--------
[verse]
'git-remote'
'git-remote' add [-t <branch>] [-m <branch>] [-f] <name> <url>
'git-remote' add [-t <branch>] [-m <branch>] [-f] [--mirror] <name> <url>
'git-remote' rm <name>
'git-remote' show <name>
'git-remote' prune <name>
'git-remote' update [group]
@@ -45,6 +46,15 @@ multiple branches without grabbing all branches.
With `-m <master>` option, `$GIT_DIR/remotes/<name>/HEAD` is set
up to point at remote's `<master>` branch instead of whatever
branch the `HEAD` at the remote repository actually points at.
+
In mirror mode, enabled with `--mirror`, the refs will not be stored
in the 'refs/remotes/' namespace, but in 'refs/heads/'. This option
only makes sense in bare repositories.
'rm'::
Remove the remote named <name>. All remote tracking branches and
configuration settings for the remote are removed.
'show'::

16
Documentation/git-rev-list.txt
View File

@@ -34,6 +34,7 @@ SYNOPSIS
[ \--pretty | \--header ]
[ \--bisect ]
[ \--bisect-vars ]
[ \--bisect-all ]
[ \--merge ]
[ \--reverse ]
[ \--walk-reflogs ]
@@ -354,6 +355,21 @@ the expected number of commits to be tested if `bisect_rev`
turns out to be bad to `bisect_bad`, and the number of commits
we are bisecting right now to `bisect_all`.
--bisect-all::
This outputs all the commit objects between the included and excluded
commits, ordered by their distance to the included and excluded
commits. The farthest from them is displayed first. (This is the only
one displayed by `--bisect`.)
This is useful because it makes it easy to choose a good commit to
test when you want to avoid to test some of them for some reason (they
may not compile for example).
This option can be used along with `--bisect-vars`, in this case,
after all the sorted commit objects, there will be the same text as if
`--bisect-vars` had been used alone.
--
Commit Ordering

43
Documentation/git-send-email.txt
View File

@@ -75,6 +75,12 @@ The --cc option must be repeated for each user you want on the cc list.
Make git-send-email less verbose. One line per email should be
all that is output.
--identity::
A configuration identity. When given, causes values in the
'sendemail.<identity>' subsection to take precedence over
values in the 'sendemail' section. The default identity is
the value of 'sendemail.identity'.
--smtp-server::
If set, specifies the outgoing SMTP server to use (e.g.
`smtp.example.com` or a raw IP address). Alternatively it can
@@ -85,6 +91,22 @@ The --cc option must be repeated for each user you want on the cc list.
`/usr/lib/sendmail` if such program is available, or
`localhost` otherwise.
--smtp-server-port::
Specifies a port different from the default port (SMTP
servers typically listen to smtp port 25 and ssmtp port
465).
--smtp-user, --smtp-pass::
Username and password for SMTP-AUTH. Defaults are the values of
the configuration values 'sendemail.smtpuser' and
'sendemail.smtppass', but see also 'sendemail.identity'.
If not set, authentication is not attempted.
--smtp-ssl::
If set, connects to the SMTP server using SSL.
Default is the value of the 'sendemail.smtpssl' configuration value;
if that is unspecified, does not use SSL.
--subject::
Specify the initial subject of the email thread.
Only necessary if --compose is also set. If --compose
@@ -122,6 +144,13 @@ The --to option must be repeated for each user you want on the to list.
CONFIGURATION
-------------
sendemail.identity::
The default configuration identity. When specified,
'sendemail.<identity>.<item>' will have higher precedence than
'sendemail.<item>'. This is useful to declare multiple SMTP
identities and to hoist sensitive authentication information
out of the repository and into the global configuation file.
sendemail.aliasesfile::
To avoid typing long email addresses, point this to one or more
email aliases files. You must also supply 'sendemail.aliasfiletype'.
@@ -130,6 +159,9 @@ sendemail.aliasfiletype::
Format of the file(s) specified in sendemail.aliasesfile. Must be
one of 'mutt', 'mailrc', 'pine', or 'gnus'.
sendemail.to::
Email address (or alias) to always send to.
sendemail.cccmd::
Command to execute to generate per patch file specific "Cc:"s.
@@ -141,7 +173,16 @@ sendemail.chainreplyto::
parameter.
sendemail.smtpserver::
Default smtp server to use.
Default SMTP server to use.
sendemail.smtpuser::
Default SMTP-AUTH username.
sendemail.smtppass::
Default SMTP-AUTH password.
sendemail.smtpssl::
Boolean value specifying the default to the '--smtp-ssl' parameter.
Author
------

9
Documentation/git-send-pack.txt
View File

@@ -8,7 +8,7 @@ git-send-pack - Push objects over git protocol to another repository
SYNOPSIS
--------
'git-send-pack' [--all] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]
'git-send-pack' [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]
DESCRIPTION
-----------
@@ -32,7 +32,10 @@ OPTIONS
\--all::
Instead of explicitly specifying which refs to update,
update all refs that locally exist.
update all heads that locally exist.
\--dry-run::
Do everything except actually send the updates.
\--force::
Usually, the command refuses to update a remote ref that
@@ -70,7 +73,7 @@ With '--all' flag, all refs that exist locally are transferred to
the remote side. You cannot specify any '<ref>' if you use
this flag.
Without '--all' and without any '<ref>', the refs that exist
Without '--all' and without any '<ref>', the heads that exist
both on the local side and on the remote side are updated.
When one or more '<ref>' are specified explicitly, it can be either a

9
Documentation/git-stash.txt
View File

@@ -57,13 +57,13 @@ stash@{1}: On master: 9cc0589... Add git-stash
show [<stash>]::
Show the changes recorded in the stash as a diff between the the
Show the changes recorded in the stash as a diff between the
stashed state and its original parent. When no `<stash>` is given,
shows the latest one. By default, the command shows the diffstat, but
it will accept any format known to `git-diff` (e.g., `git-stash show
-p stash@\{1}` to view the second most recent stash in patch form).
apply [<stash>]::
apply [--index] [<stash>]::
Restore the changes recorded in the stash on top of the current
working tree state. When no `<stash>` is given, applies the latest
@@ -71,6 +71,11 @@ apply [<stash>]::
+
This operation can fail with conflicts; you need to resolve them
by hand in the working tree.
+
If the `--index` option is used, then tries to reinstate not only the working
tree's changes, but also the index's ones. However, this can fail, when you
have conflicts (which are stored in the index, where you therefore can no
longer apply the changes as they were originally).
clear::
Remove all the stashed states. Note that those states will then

3
Documentation/git-submodule.txt
View File

@@ -21,6 +21,9 @@ add::
repository is cloned at the specified path, added to the
changeset and registered in .gitmodules. If no path is
specified, the path is deduced from the repository specification.
If the repository url begins with ./ or ../, it is stored as
given but resolved as a relative path from the main project's
url when cloning.
status::
Show the status of the submodules. This will print the SHA-1 of the

13
Documentation/git-svn.txt
View File

@@ -404,7 +404,7 @@ section because they affect the 'git-svn-id:' metadata line.
BASIC EXAMPLES
--------------
Tracking and contributing to a the trunk of a Subversion-managed project:
Tracking and contributing to the trunk of a Subversion-managed project:
------------------------------------------------------------------------
# Clone a repo (like git clone):
@@ -478,11 +478,12 @@ previous commits in SVN.
DESIGN PHILOSOPHY
-----------------
Merge tracking in Subversion is lacking and doing branched development
with Subversion is cumbersome as a result. git-svn does not do
automated merge/branch tracking by default and leaves it entirely up to
the user on the git side. git-svn does however follow copy
history of the directory that it is tracking, however (much like
how 'svn log' works).
with Subversion can be cumbersome as a result. While git-svn can track
copy history (including branches and tags) for repositories adopting a
standard layout, it cannot yet represent merge history that happened
inside git back upstream to SVN users. Therefore it is advised that
users keep history as linear as possible inside git to ease
compatibility with SVN (see the CAVEATS section below).
CAVEATS
-------

23
Documentation/git-tag.txt
View File

@@ -112,7 +112,7 @@ You really want to call the new version "X" too, 'even though'
others have already seen the old one. So just use "git tag -f"
again, as if you hadn't already published the old one.
However, Git does *not* (and it should not)change tags behind
However, Git does *not* (and it should not) change tags behind
users back. So if somebody already got the old tag, doing a "git
pull" on your tree shouldn't just make them overwrite the old
one.
@@ -214,6 +214,27 @@ having tracking branches. Again, the heuristic to automatically
follow such tags is a good thing.
On Backdating Tags
~~~~~~~~~~~~~~~~~~
If you have imported some changes from another VCS and would like
to add tags for major releases of your work, it is useful to be able
to specify the date to embed inside of the tag object. The data in
the tag object affects, for example, the ordering of tags in the
gitweb interface.
To set the date used in future tag objects, set the environment
variable GIT_AUTHOR_DATE to one or more of the date and time. The
date and time can be specified in a number of ways; the most common
is "YYYY-MM-DD HH:MM".
An example follows.
------------
$ GIT_AUTHOR_DATE="2006-10-02 10:31" git tag -s v1.0.1
------------
Author
------
Written by Linus Torvalds <torvalds@osdl.org>,

5
Documentation/git-tools.txt
View File

@@ -22,6 +22,9 @@ Alternative/Augmentative Porcelains
providing generally smoother user experience than the "raw" Core GIT
itself and indeed many other version control systems.
Cogito is no longer maintained as most of its functionality
is now in core GIT.
- *pg* (http://www.spearce.org/category/projects/scm/pg/)
@@ -33,7 +36,7 @@ Alternative/Augmentative Porcelains
- *StGit* (http://www.procode.org/stgit/)
Stacked GIT provides a quilt-like patch management functionality in the
GIT environment. You can easily manage your patches in the scope of GIT
GIT environment. You can easily manage your patches in the scope of GIT
until they get merged upstream.

71
Documentation/git.txt
View File

@@ -43,7 +43,15 @@ unreleased) version of git, that is available from 'master'
branch of the `git.git` repository.
Documentation for older releases are available here:
* link:v1.5.2.5/git.html[documentation for release 1.5.2.5]
* link:v1.5.3/git.html[documentation for release 1.5.3]
* release notes for
link:RelNotes-1.5.3.5.txt[1.5.3.5],
link:RelNotes-1.5.3.4.txt[1.5.3.4],
link:RelNotes-1.5.3.3.txt[1.5.3.3],
link:RelNotes-1.5.3.2.txt[1.5.3.2],
link:RelNotes-1.5.3.1.txt[1.5.3.1],
link:RelNotes-1.5.3.txt[1.5.3].
* release notes for
link:RelNotes-1.5.2.5.txt[1.5.2.5],
@@ -131,9 +139,9 @@ FURTHER DOCUMENTATION
See the references above to get started using git. The following is
probably more detail than necessary for a first-time user.
The <<Discussion,Discussion>> section below and the
link:core-tutorial.html[Core tutorial] both provide introductions to the
underlying git architecture.
The link:user-manual.html#git-concepts[git concepts chapter of the
user-manual] and the link:core-tutorial.html[Core tutorial] both provide
introductions to the underlying git architecture.
See also the link:howto-index.html[howto] documents for some useful
examples.
@@ -320,7 +328,7 @@ For a more complete list of ways to spell object names, see
File/Directory Structure
------------------------
Please see link:repository-layout.html[repository layout] document.
Please see the link:repository-layout.html[repository layout] document.
Read link:hooks.html[hooks] for more details about each hook.
@@ -330,7 +338,7 @@ Higher level SCMs may provide and manage additional information in the
Terminology
-----------
Please see link:glossary.html[glossary] document.
Please see the link:glossary.html[glossary] document.
Environment Variables
@@ -471,7 +479,56 @@ for further details.
Discussion[[Discussion]]
------------------------
include::core-intro.txt[]
More detail on the following is available from the
link:user-manual.html#git-concepts[git concepts chapter of the
user-manual] and the link:core-tutorial.html[Core tutorial].
A git project normally consists of a working directory with a ".git"
subdirectory at the top level. The .git directory contains, among other
things, a compressed object database representing the complete history
of the project, an "index" file which links that history to the current
contents of the working tree, and named pointers into that history such
as tags and branch heads.
The object database contains objects of three main types: blobs, which
hold file data; trees, which point to blobs and other trees to build up
directory heirarchies; and commits, which each reference a single tree
and some number of parent commits.
The commit, equivalent to what other systems call a "changeset" or
"version", represents a step in the project's history, and each parent
represents an immediately preceding step. Commits with more than one
parent represent merges of independent lines of development.
All objects are named by the SHA1 hash of their contents, normally
written as a string of 40 hex digits. Such names are globally unique.
The entire history leading up to a commit can be vouched for by signing
just that commit. A fourth object type, the tag, is provided for this
purpose.
When first created, objects are stored in individual files, but for
efficiency may later be compressed together into "pack files".
Named pointers called refs mark interesting points in history. A ref
may contain the SHA1 name of an object or the name of another ref. Refs
with names beginning `ref/head/` contain the SHA1 name of the most
recent commit (or "head") of a branch under developement. SHA1 names of
tags of interest are stored under `ref/tags/`. A special ref named
`HEAD` contains the name of the currently checked-out branch.
The index file is initialized with a list of all paths and, for each
path, a blob object and a set of attributes. The blob object represents
the contents of the file as of the head of the current branch. The
attributes (last modified time, size, etc.) are taken from the
corresponding file in the working tree. Subsequent changes to the
working tree can be found by comparing these attributes. The index may
be updated with new content, and new commits may be created from the
content stored in the index.
The index is also capable of storing multiple entries (called "stages")
for a given pathname. These stages are used to hold the various
unmerged version of a file when a merge is in progress.
Authors
-------

37
Documentation/gitattributes.txt
View File

@@ -145,17 +145,6 @@ sign `$` upon checkout. Any byte sequence that begins with
with `$Id$` upon check-in.
Interaction between checkin/checkout attributes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
In the check-in codepath, the worktree file is first converted
with `ident` (if specified), and then with `crlf` (again, if
specified and applicable).
In the check-out codepath, the blob content is first converted
with `crlf`, and then `ident`.
`filter`
^^^^^^^^
@@ -175,11 +164,10 @@ but makes the filter a no-op passthru.
The content filtering is done to massage the content into a
shape that is more convenient for the platform, filesystem, and
the user to use. The keyword here is "more convenient" and not
"turning something unusable into usable". In other words, it is
"hanging yourself because we gave you a long rope" if your
project uses filtering mechanism in such a way that it makes
your project unusable unless the checkout is done with a
specific filter in effect.
"turning something unusable into usable". In other words, the
intent is that if someone unsets the filter driver definition,
or does not have the appropriate filter program, the project
should still be usable.
Interaction between checkin/checkout attributes
@@ -421,6 +409,23 @@ frotz unspecified
----------------------------------------------------------------
Creating an archive
~~~~~~~~~~~~~~~~~~~
`export-subst`
^^^^^^^^^^^^^^
If the attribute `export-subst` is set for a file then git will expand
several placeholders when adding this file to an archive. The
expansion depends on the availability of a commit ID, i.e. if
gitlink:git-archive[1] has been given a tree instead of a commit or a
tag then no replacement will be done. The placeholders are the same
as those for the option `--pretty=format:` of gitlink:git-log[1],
except that they need to be wrapped like this: `$Format:PLACEHOLDERS$`
in the file. E.g. the string `$Format:%H$` will be replaced by the
commit hash.
GIT
---
Part of the gitlink:git[7] suite

2
Documentation/gitignore.txt
View File

@@ -26,7 +26,7 @@ precedence, the last matching pattern decides the outcome):
* Patterns read from a `.gitignore` file in the same directory
as the path, or in any parent directory, with patterns in the
higher level files (up to the root) being overriden by those in
higher level files (up to the root) being overridden by those in
lower level files down to the directory containing the file.
These patterns match relative to the location of the
`.gitignore` file. A project normally includes such

2
Documentation/gitk.txt
View File

@@ -69,7 +69,7 @@ gitk --since="2 weeks ago" \-- gitk::
The "--" is necessary to avoid confusion with the *branch* named
'gitk'
gitk --max-count=100 --all -- Makefile::
gitk --max-count=100 --all \-- Makefile::
Show at most 100 changes made to the file 'Makefile'. Instead of only
looking for changes in the current branch look in all branches.

12
Documentation/glossary.txt
View File

@@ -52,8 +52,8 @@ GIT Glossary
[[def_cherry-picking]]cherry-picking::
In <<def_SCM,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
as a new series of changes on top of a different codebase. In GIT, this is
performed by the "git cherry-pick" command to extract the change introduced
by an existing <<def_commit,commit>> and to record it based on the tip
of the current <<def_branch,branch>> as a new commit.
@@ -281,7 +281,7 @@ This commit is referred to as a "merge commit", or sometimes just a
[[def_pickaxe]]pickaxe::
The term <<def_pickaxe,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
string. With the `--pickaxe-all` option, it can be used to view the full
<<def_changeset,changeset>> that introduced or removed, say, a
particular line of text. See gitlink:git-diff[1].
@@ -301,8 +301,8 @@ This commit is referred to as a "merge commit", or sometimes just a
[[def_push]]push::
Pushing a <<def_branch,branch>> means to get the branch's
<<def_head_ref,head ref>> from a remote <<def_repository,repository>>,
find out if it is an ancestor to the branch's local
head ref is a direct, and in that case, putting all
find out if it is a direct ancestor to the branch's local
head ref, and in that case, putting all
objects, which are <<def_reachable,reachable>> from the local
head ref, and which are missing from the remote
repository, into the remote
@@ -347,7 +347,7 @@ This commit is referred to as a "merge commit", or sometimes just a
it as my origin branch head". And `git push
$URL refs/heads/master:refs/heads/to-upstream` means "publish my
master branch head as to-upstream branch at $URL". See also
gitlink:git-push[1]
gitlink:git-push[1].
[[def_repository]]repository::
A collection of <<def_ref,refs>> together with an

27
Documentation/hooks.txt
View File

@@ -87,6 +87,33 @@ parameter, and is invoked after a commit is made.
This hook is meant primarily for notification, and cannot affect
the outcome of `git-commit`.
post-checkout
-----------
This hook is invoked when a `git-checkout` is run after having updated the
worktree. The hook is given three parameters: the ref of the previous HEAD,
the ref of the new HEAD (which may or may not have changed), and a flag
indicating whether the checkout was a branch checkout (changing branches,
flag=1) or a file checkout (retrieving a file from the index, flag=0).
This hook cannot affect the outcome of `git-checkout`.
This hook can be used to perform repository validity checks, auto-display
differences from the previous HEAD if different, or set working dir metadata
properties.
post-merge
-----------
This hook is invoked by `git-merge`, which happens when a `git pull`
is done on a local repository. The hook takes a single parameter, a status
flag specifying whether or not the merge being done was a squash merge.
This hook cannot affect the outcome of `git-merge`.
This hook can be used in conjunction with a corresponding pre-commit hook to
save and restore any form of metadata associated with the working tree
(eg: permissions/ownership, ACLS, etc). See contrib/hooks/setgitperms.perl
for an example of how to do this.
[[pre-receive]]
pre-receive
-----------

8
Documentation/howto/update-hook-example.txt
View File

@@ -158,11 +158,11 @@ This uses two files, $GIT_DIR/info/allowed-users and
allowed-groups, to describe which heads can be pushed into by
whom. The format of each file would look like this:
refs/heads/master junio
refs/heads/master junio
refs/heads/cogito$ pasky
refs/heads/bw/ linus
refs/heads/tmp/ *
refs/tags/v[0-9]* junio
refs/heads/bw/.* linus
refs/heads/tmp/.* .*
refs/tags/v[0-9].* junio
With this, Linus can push or create "bw/penguin" or "bw/zebra"
or "bw/panda" branches, Pasky can do only "cogito", and JC can

17
Documentation/merge-options.txt
View File

@@ -10,6 +10,10 @@
not autocommit, to give the user a chance to inspect and
further tweak the merge result before committing.
--commit::
Perform the merge and commit the result. This option can
be used to override --no-commit.
--squash::
Produce the working tree and index state as if a real
merge happened, but do not actually make a commit or
@@ -19,6 +23,19 @@
top of the current branch whose effect is the same as
merging another branch (or more in case of an octopus).
--no-squash::
Perform the merge and commit the result. This option can
be used to override --squash.
--no-ff::
Generate a merge commit even if the merge resolved as a
fast-forward.
--ff::
Do not generate a merge commit if the merge resolved as
a fast-forward, only update the branch pointer. This is
the default behavior of git-merge.
-s <strategy>, \--strategy=<strategy>::
Use the given merge strategy; can be supplied more than
once to specify them in the order they should be tried.

1133
Documentation/user-manual.txt
View File

File diff suppressed because it is too large Load Diff

3
INSTALL
View File

@@ -79,6 +79,9 @@ Issues of note:
- "perl" and POSIX-compliant shells are needed to use most of
the barebone Porcelainish scripts.
- "cpio" is used by git-merge for saving and restoring the index,
and by git-clone when doing a local (possibly hardlinked) clone.
- Some platform specific issues are dealt with Makefile rules,
but depending on your specific installation, you may not
have all the libraries/tools needed, or you may have

118
Makefile
View File

@@ -28,6 +28,8 @@ all::
#
# Define NO_STRCASESTR if you don't have strcasestr.
#
# Define NO_MEMMEM if you don't have memmem.
#
# Define NO_STRLCPY if you don't have strlcpy.
#
# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
@@ -36,6 +38,8 @@ all::
#
# Define NO_SETENV if you don't have setenv in the C library.
#
# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
#
# 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.
#
@@ -125,6 +129,9 @@ all::
# If not set it defaults to the bare 'wish'. If it is set to the empty
# string then NO_TCLTK will be forced (this is used by configure script).
#
# Define THREADED_DELTA_SEARCH if you have pthreads and wish to exploit
# parallel delta searching when packing objects.
#
GIT-VERSION-FILE: .FORCE-GIT-VERSION-FILE
@"$(SHELL_PATH)" ./GIT-VERSION-GEN
@@ -163,6 +170,7 @@ GITWEB_CONFIG = gitweb_config.perl
GITWEB_HOME_LINK_STR = projects
GITWEB_SITENAME =
GITWEB_PROJECTROOT = /pub/git
GITWEB_PROJECT_MAXDEPTH = 2007
GITWEB_EXPORT_OK =
GITWEB_STRICT_EXPORT =
GITWEB_BASE_URL =
@@ -205,11 +213,10 @@ BASIC_LDFLAGS =
SCRIPT_SH = \
git-bisect.sh git-checkout.sh \
git-clean.sh git-clone.sh git-commit.sh \
git-fetch.sh \
git-ls-remote.sh \
git-merge-one-file.sh git-mergetool.sh git-parse-remote.sh \
git-pull.sh git-rebase.sh git-rebase--interactive.sh \
git-repack.sh git-request-pull.sh git-reset.sh \
git-repack.sh git-request-pull.sh \
git-sh-setup.sh \
git-am.sh \
git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
@@ -221,8 +228,7 @@ SCRIPT_SH = \
SCRIPT_PERL = \
git-add--interactive.perl \
git-archimport.perl git-cvsimport.perl git-relink.perl \
git-cvsserver.perl git-remote.perl \
git-svnimport.perl git-cvsexportcommit.perl \
git-cvsserver.perl git-remote.perl git-cvsexportcommit.perl \
git-send-email.perl git-svn.perl
SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
@@ -232,13 +238,13 @@ SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \
# ... and all the rest that could be moved out of bindir to gitexecdir
PROGRAMS = \
git-fetch-pack$X \
git-hash-object$X git-index-pack$X git-local-fetch$X \
git-hash-object$X git-index-pack$X \
git-fast-import$X \
git-merge-index$X git-mktag$X git-mktree$X git-patch-id$X \
git-peek-remote$X git-receive-pack$X \
git-send-pack$X git-shell$X \
git-show-index$X git-ssh-fetch$X \
git-ssh-upload$X git-unpack-file$X \
git-show-index$X \
git-unpack-file$X \
git-update-server-info$X \
git-upload-pack$X \
git-pack-redundant$X git-var$X \
@@ -266,9 +272,6 @@ ifndef NO_TCLTK
OTHER_PROGRAMS += gitk-wish
endif
# Backward compatibility -- to be removed after 1.0
PROGRAMS += git-ssh-pull$X git-ssh-push$X
# Set paths to tools early so that they can be used for version tests.
ifndef SHELL_PATH
SHELL_PATH = /bin/sh
@@ -283,13 +286,13 @@ LIB_FILE=libgit.a
XDIFF_LIB=xdiff/lib.a
LIB_H = \
archive.h blob.h cache.h commit.h csum-file.h delta.h grep.h \
archive.h blob.h cache.h cache-tree.h commit.h csum-file.h delta.h grep.h \
diff.h object.h pack.h pkt-line.h quote.h refs.h list-objects.h sideband.h \
run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h \
spawn-pipe.h \
utf8.h reflog-walk.h patch-ids.h attr.h decorate.h progress.h \
remote.h
mailmap.h remote.h transport.h diffcore.h hash.h
DIFF_OBJS = \
diff.o diff-lib.o diffcore-break.o diffcore-order.o \
@@ -299,7 +302,7 @@ DIFF_OBJS = \
LIB_OBJS = \
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 \
interpolate.o \
interpolate.o hash.o \
lockfile.o \
spawn-pipe.o \
patch-ids.o \
@@ -312,7 +315,8 @@ LIB_OBJS = \
write_or_die.o trace.o list-objects.o grep.o match-trees.o \
alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS) \
color.o wt-status.o archive-zip.o archive-tar.o shallow.o utf8.o \
convert.o attr.o decorate.o progress.o mailmap.o symlinks.o remote.o
convert.o attr.o decorate.o progress.o mailmap.o symlinks.o remote.o \
transport.o bundle.o walker.o
BUILTIN_OBJS = \
builtin-add.o \
@@ -333,6 +337,8 @@ BUILTIN_OBJS = \
builtin-diff-files.o \
builtin-diff-index.o \
builtin-diff-tree.o \
builtin-fetch.o \
builtin-fetch-pack.o \
builtin-fetch--tool.o \
builtin-fmt-merge-msg.o \
builtin-for-each-ref.o \
@@ -357,6 +363,7 @@ BUILTIN_OBJS = \
builtin-reflog.o \
builtin-config.o \
builtin-rerere.o \
builtin-reset.o \
builtin-rev-list.o \
builtin-rev-parse.o \
builtin-revert.o \
@@ -400,23 +407,27 @@ ifeq ($(uname_S),Darwin)
NEEDS_LIBICONV = YesPlease
OLD_ICONV = UnfortunatelyYes
NO_STRLCPY = YesPlease
NO_MEMMEM = YesPlease
endif
ifeq ($(uname_S),SunOS)
NEEDS_SOCKET = YesPlease
NEEDS_NSL = YesPlease
SHELL_PATH = /bin/bash
NO_STRCASESTR = YesPlease
NO_MEMMEM = YesPlease
NO_HSTRERROR = YesPlease
ifeq ($(uname_R),5.8)
NEEDS_LIBICONV = YesPlease
NO_UNSETENV = YesPlease
NO_SETENV = YesPlease
NO_MKDTEMP = YesPlease
NO_C99_FORMAT = YesPlease
NO_STRTOUMAX = YesPlease
endif
ifeq ($(uname_R),5.9)
NO_UNSETENV = YesPlease
NO_SETENV = YesPlease
NO_MKDTEMP = YesPlease
NO_C99_FORMAT = YesPlease
NO_STRTOUMAX = YesPlease
endif
@@ -428,6 +439,7 @@ ifeq ($(uname_O),Cygwin)
NO_D_TYPE_IN_DIRENT = YesPlease
NO_D_INO_IN_DIRENT = YesPlease
NO_STRCASESTR = YesPlease
NO_MEMMEM = YesPlease
NO_SYMLINK_HEAD = YesPlease
NEEDS_LIBICONV = YesPlease
NO_FAST_WORKING_DIRECTORY = UnfortunatelyYes
@@ -441,11 +453,13 @@ ifeq ($(uname_O),Cygwin)
endif
ifeq ($(uname_S),FreeBSD)
NEEDS_LIBICONV = YesPlease
NO_MEMMEM = YesPlease
BASIC_CFLAGS += -I/usr/local/include
BASIC_LDFLAGS += -L/usr/local/lib
endif
ifeq ($(uname_S),OpenBSD)
NO_STRCASESTR = YesPlease
NO_MEMMEM = YesPlease
NEEDS_LIBICONV = YesPlease
BASIC_CFLAGS += -I/usr/local/include
BASIC_LDFLAGS += -L/usr/local/lib
@@ -460,6 +474,7 @@ ifeq ($(uname_S),NetBSD)
endif
ifeq ($(uname_S),AIX)
NO_STRCASESTR=YesPlease
NO_MEMMEM = YesPlease
NO_STRLCPY = YesPlease
NEEDS_LIBICONV=YesPlease
endif
@@ -471,6 +486,7 @@ ifeq ($(uname_S),IRIX64)
NO_IPV6=YesPlease
NO_SETENV=YesPlease
NO_STRCASESTR=YesPlease
NO_MEMMEM = YesPlease
NO_STRLCPY = YesPlease
NO_SOCKADDR_STORAGE=YesPlease
SHELL_PATH=/usr/gnu/bin/bash
@@ -479,8 +495,6 @@ ifeq ($(uname_S),IRIX64)
BASIC_LDFLAGS += -L/usr/lib32
endif
ifneq (,$(findstring MINGW,$(uname_S)))
SHELL_PATH = /bin/sh
PERL_PATH = /bin/perl
NO_MMAP=YesPlease
NO_PREAD=YesPlease
NO_OPENSSL=YesPlease
@@ -492,10 +506,12 @@ ifneq (,$(findstring MINGW,$(uname_S)))
NO_UNSETENV=YesPlease
NO_STRCASESTR=YesPlease
NO_STRLCPY=YesPlease
NO_ICONV=YesPlease
NO_MEMMEM = YesPlease
NEEDS_LIBICONV = YesPlease
OLD_ICONV = YesPlease
NO_C99_FORMAT = YesPlease
NO_STRTOUMAX = YesPlease
NO_SYMLINKS=YesPlease
NO_MKDTEMP = YesPlease
NO_SVN_TESTS=YesPlease
NO_PERL_MAKEMAKER=YesPlease
NO_R_TO_GCC_LINKER = YesPlease
@@ -505,7 +521,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
X = .exe
NOEXECTEMPL = .noexec
prefix =
SCRIPT_SH += cpio.sh
endif
ifneq (,$(findstring arm,$(uname_M)))
ARM_SHA1 = YesPlease
@@ -537,7 +552,9 @@ else
CC_LD_DYNPATH = -R
endif
ifndef NO_CURL
ifdef NO_CURL
BASIC_CFLAGS += -DNO_CURL
else
ifdef CURLDIR
# Try "-Wl,-rpath=$(CURLDIR)/$(lib)" in such a case.
BASIC_CFLAGS += -I$(CURLDIR)/include
@@ -545,7 +562,9 @@ ifndef NO_CURL
else
CURL_LIBCURL = -lcurl
endif
PROGRAMS += git-http-fetch$X
BUILTIN_OBJS += builtin-http-fetch.o
EXTLIBS += $(CURL_LIBCURL)
LIB_OBJS += http.o http-walker.o
curl_check := $(shell (echo 070908; curl-config --vernum) | sort -r | sed -ne 2p)
ifeq "$(curl_check)" "070908"
ifndef NO_EXPAT
@@ -627,6 +646,10 @@ ifdef NO_SETENV
COMPAT_CFLAGS += -DNO_SETENV
COMPAT_OBJS += compat/setenv.o
endif
ifdef NO_MKDTEMP
COMPAT_CFLAGS += -DNO_MKDTEMP
COMPAT_OBJS += compat/mkdtemp.o
endif
ifdef NO_UNSETENV
COMPAT_CFLAGS += -DNO_UNSETENV
COMPAT_OBJS += compat/unsetenv.o
@@ -694,6 +717,15 @@ ifdef NO_HSTRERROR
COMPAT_CFLAGS += -DNO_HSTRERROR
COMPAT_OBJS += compat/hstrerror.o
endif
ifdef NO_MEMMEM
COMPAT_CFLAGS += -DNO_MEMMEM
COMPAT_OBJS += compat/memmem.o
endif
ifdef THREADED_DELTA_SEARCH
BASIC_CFLAGS += -DTHREADED_DELTA_SEARCH
EXTLIBS += -lpthread
endif
ifeq ($(TCLTK_PATH),)
NO_TCLTK=NoThanks
@@ -817,12 +849,12 @@ $(patsubst %.sh,%,$(SCRIPT_SH)) : % : %.sh
$(patsubst %.perl,%,$(SCRIPT_PERL)): perl/perl.mak
perl/perl.mak: GIT-CFLAGS
perl/perl.mak: GIT-CFLAGS perl/Makefile perl/Makefile.PL
$(QUIET_SUBDIR0)perl $(QUIET_SUBDIR1) PERL_PATH='$(PERL_PATH_SQ)' prefix='$(prefix_SQ)' $(@F)
$(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl
$(QUIET_GEN)$(RM) $@ $@+ && \
INSTLIBDIR=`$(MAKE) -C perl -s --no-print-directory instlibdir` && \
INSTLIBDIR=`MAKEFLAGS= $(MAKE) -C perl -s --no-print-directory instlibdir` && \
sed -e '1{' \
-e ' s|#!.*perl|#!$(PERL_PATH_SQ)|' \
-e ' h' \
@@ -848,6 +880,7 @@ gitweb/gitweb.cgi: gitweb/gitweb.perl
-e 's|++GITWEB_HOME_LINK_STR++|$(GITWEB_HOME_LINK_STR)|g' \
-e 's|++GITWEB_SITENAME++|$(GITWEB_SITENAME)|g' \
-e 's|++GITWEB_PROJECTROOT++|$(GITWEB_PROJECTROOT)|g' \
-e 's|"++GITWEB_PROJECT_MAXDEPTH++"|$(GITWEB_PROJECT_MAXDEPTH)|g' \
-e 's|++GITWEB_EXPORT_OK++|$(GITWEB_EXPORT_OK)|g' \
-e 's|++GITWEB_STRICT_EXPORT++|$(GITWEB_STRICT_EXPORT)|g' \
-e 's|++GITWEB_BASE_URL++|$(GITWEB_BASE_URL)|g' \
@@ -907,35 +940,23 @@ http.o: http.c GIT-CFLAGS
$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DGIT_USER_AGENT='"git/$(GIT_VERSION)"' $<
ifdef NO_EXPAT
http-fetch.o: http-fetch.c http.h GIT-CFLAGS
http-walker.o: http-walker.c http.h GIT-CFLAGS
$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DNO_EXPAT $<
endif
git-%$X: %.o $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
ssh-pull.o: ssh-fetch.c
ssh-push.o: ssh-upload.c
git-local-fetch$X: fetch.o
git-ssh-fetch$X: rsh.o fetch.o
git-ssh-upload$X: rsh.o
git-ssh-pull$X: rsh.o fetch.o
git-ssh-push$X: rsh.o
git-imap-send$X: imap-send.o $(LIB_FILE)
http.o http-fetch.o http-push.o: http.h
git-http-fetch$X: fetch.o http.o http-fetch.o $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
http.o http-walker.o http-push.o: http.h
git-http-push$X: revision.o http.o http-push.o $(GITLIBS)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) \
$(LIBS) $(CURL_LIBCURL) $(EXPAT_LIBEXPAT)
$(LIB_OBJS) $(BUILTIN_OBJS) fetch.o: $(LIB_H)
$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
$(patsubst git-%$X,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
$(DIFF_OBJS): diffcore.h
$(LIB_FILE): $(LIB_OBJS)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIB_OBJS)
@@ -949,10 +970,6 @@ $(XDIFF_LIB): $(XDIFF_OBJS)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(XDIFF_OBJS)
perl/Makefile: perl/Git.pm perl/Makefile.PL GIT-CFLAGS
(cd perl && $(PERL_PATH) Makefile.PL \
PREFIX='$(prefix_SQ)')
doc:
$(MAKE) -C Documentation all
@@ -967,6 +984,10 @@ tags:
$(RM) tags
$(FIND) . -name '*.[hcS]' -print | xargs ctags -a
cscope:
$(RM) cscope*
$(FIND) . -name '*.[hcS]' -print | xargs cscope -b
### Detect prefix changes
TRACK_CFLAGS = $(subst ','\'',$(ALL_CFLAGS)):\
$(bindir_SQ):$(gitexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)
@@ -1002,7 +1023,6 @@ all:: $(TEST_PROGRAMS)
# However, the environment gets quite big, and some programs have problems
# with that.
export NO_SYMLINKS
export NO_SVN_TESTS
test: all
@@ -1112,14 +1132,17 @@ dist-doc:
### Cleaning rules
distclean: clean
$(RM) configure
clean:
$(RM) *.o mozilla-sha1/*.o arm/*.o ppc/*.o compat/*.o xdiff/*.o \
$(LIB_FILE) $(XDIFF_LIB)
$(RM) $(ALL_PROGRAMS) $(BUILT_INS) git$X
$(RM) $(TEST_PROGRAMS)
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo common-cmds.h TAGS tags cscope*
$(RM) -r autom4te.cache
$(RM) configure config.log config.mak.autogen config.mak.append config.status config.cache
$(RM) config.log config.mak.autogen config.mak.append config.status config.cache
$(RM) -r $(GIT_TARNAME) .doc-tmp-dir
$(RM) $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz
$(RM) $(htmldocs).tar.gz $(manpages).tar.gz
@@ -1135,7 +1158,7 @@ endif
$(RM) GIT-VERSION-FILE GIT-CFLAGS GIT-GUI-VARS
.PHONY: all install clean strip
.PHONY: .FORCE-GIT-VERSION-FILE TAGS tags .FORCE-GIT-CFLAGS
.PHONY: .FORCE-GIT-VERSION-FILE TAGS tags cscope .FORCE-GIT-CFLAGS
### Check documentation
#
@@ -1146,8 +1169,7 @@ check-docs::
git-merge-octopus | git-merge-ours | git-merge-recursive | \
git-merge-resolve | git-merge-stupid | \
git-add--interactive | git-fsck-objects | git-init-db | \
git-repo-config | git-fetch--tool | \
git-ssh-pull | git-ssh-push ) continue ;; \
git-repo-config | git-fetch--tool ) continue ;; \
esac ; \
test -f "Documentation/$$v.txt" || \
echo "no doc: $$v"; \

9
README.MinGW
View File

@@ -28,6 +28,15 @@ In order to compile this code you need:
zlib-1.2.3-mingwPORT-1.tar
w32api-3.6.tar.gz
tcltk-8.4.1-1.exe (for gitk, git-gui)
libiconv-1.9.2-1-{lib,bin,lib}.zip (for git-am,
from http://gnuwin32.sourceforge.net/packages/libiconv.htm)
I am using these settings in config.mak to have pointers to the right tools:
TCL_PATH=tclsh84
TCLTK_PATH=wish84
SHELL_PATH=D:/MSYS/1.0/bin/sh
PERL_PATH=D:/MSYS/1.0/bin/perl
STATUS

74
archive-tar.c
View File

@@ -3,7 +3,6 @@
*/
#include "cache.h"
#include "commit.h"
#include "strbuf.h"
#include "tar.h"
#include "builtin.h"
#include "archive.h"
@@ -17,6 +16,7 @@ static unsigned long offset;
static time_t archive_time;
static int tar_umask = 002;
static int verbose;
static const struct commit *commit;
/* writes out the whole block, but only if it is full */
static void write_if_needed(void)
@@ -78,19 +78,6 @@ static void write_trailer(void)
}
}
static void strbuf_append_string(struct strbuf *sb, const char *s)
{
int slen = strlen(s);
int total = sb->len + slen;
if (total + 1 > sb->alloc) {
sb->buf = xrealloc(sb->buf, total + 1);
sb->alloc = total + 1;
}
memcpy(sb->buf + sb->len, s, slen);
sb->len = total;
sb->buf[total] = '\0';
}
/*
* pax extended header records have the format "%u %s=%s\n". %u contains
* the size of the whole string (including the %u), the first %s is the
@@ -100,26 +87,17 @@ static void strbuf_append_string(struct strbuf *sb, const char *s)
static void strbuf_append_ext_header(struct strbuf *sb, const char *keyword,
const char *value, unsigned int valuelen)
{
char *p;
int len, total, tmp;
int len, tmp;
/* "%u %s=%s\n" */
len = 1 + 1 + strlen(keyword) + 1 + valuelen + 1;
for (tmp = len; tmp > 9; tmp /= 10)
len++;
total = sb->len + len;
if (total > sb->alloc) {
sb->buf = xrealloc(sb->buf, total);
sb->alloc = total;
}
p = sb->buf;
p += sprintf(p, "%u %s=", len, keyword);
memcpy(p, value, valuelen);
p += valuelen;
*p = '\n';
sb->len = total;
strbuf_grow(sb, len);
strbuf_addf(sb, "%u %s=", len, keyword);
strbuf_add(sb, value, valuelen);
strbuf_addch(sb, '\n');
}
static unsigned int ustar_header_chksum(const struct ustar_header *header)
@@ -153,8 +131,7 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
struct strbuf ext_header;
memset(&header, 0, sizeof(header));
ext_header.buf = NULL;
ext_header.len = ext_header.alloc = 0;
strbuf_init(&ext_header, 0);
if (!sha1) {
*header.typeflag = TYPEFLAG_GLOBAL_HEADER;
@@ -166,7 +143,7 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
sprintf(header.name, "%s.paxheader", sha1_to_hex(sha1));
} else {
if (verbose)
fprintf(stderr, "%.*s\n", path->len, path->buf);
fprintf(stderr, "%.*s\n", (int)path->len, path->buf);
if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
*header.typeflag = TYPEFLAG_DIR;
mode = (mode | 0777) & ~tar_umask;
@@ -225,8 +202,8 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
if (ext_header.len > 0) {
write_entry(sha1, NULL, 0, ext_header.buf, ext_header.len);
free(ext_header.buf);
}
strbuf_release(&ext_header);
write_blocked(&header, sizeof(header));
if (S_ISREG(mode) && buffer && size > 0)
write_blocked(buffer, size);
@@ -235,11 +212,11 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
static void write_global_extended_header(const unsigned char *sha1)
{
struct strbuf ext_header;
ext_header.buf = NULL;
ext_header.len = ext_header.alloc = 0;
strbuf_init(&ext_header, 0);
strbuf_append_ext_header(&ext_header, "comment", sha1_to_hex(sha1), 40);
write_entry(NULL, NULL, 0, ext_header.buf, ext_header.len);
free(ext_header.buf);
strbuf_release(&ext_header);
}
static int git_tar_config(const char *var, const char *value)
@@ -260,32 +237,22 @@ static int write_tar_entry(const unsigned char *sha1,
const char *base, int baselen,
const char *filename, unsigned mode, int stage)
{
static struct strbuf path;
int filenamelen = strlen(filename);
static struct strbuf path = STRBUF_INIT;
void *buffer;
enum object_type type;
unsigned long size;
if (!path.alloc) {
path.buf = xmalloc(PATH_MAX);
path.alloc = PATH_MAX;
path.len = path.eof = 0;
}
if (path.alloc < baselen + filenamelen + 1) {
free(path.buf);
path.buf = xmalloc(baselen + filenamelen + 1);
path.alloc = baselen + filenamelen + 1;
}
memcpy(path.buf, base, baselen);
memcpy(path.buf + baselen, filename, filenamelen);
path.len = baselen + filenamelen;
path.buf[path.len] = '\0';
strbuf_reset(&path);
strbuf_grow(&path, PATH_MAX);
strbuf_add(&path, base, baselen);
strbuf_addstr(&path, filename);
if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
strbuf_append_string(&path, "/");
strbuf_addch(&path, '/');
buffer = NULL;
size = 0;
} else {
buffer = convert_sha1_file(path.buf, sha1, mode, &type, &size);
buffer = sha1_file_to_archive(path.buf, sha1, mode, &type,
&size, commit);
if (!buffer)
die("cannot read %s", sha1_to_hex(sha1));
}
@@ -304,6 +271,7 @@ int write_tar_archive(struct archiver_args *args)
archive_time = args->time;
verbose = args->verbose;
commit = args->commit;
if (args->commit_sha1)
write_global_extended_header(args->commit_sha1);

11
archive-zip.c
View File

@@ -12,6 +12,7 @@
static int verbose;
static int zip_date;
static int zip_time;
static const struct commit *commit;
static unsigned char *zip_dir;
static unsigned int zip_dir_size;
@@ -191,11 +192,13 @@ static int write_zip_entry(const unsigned char *sha1,
compressed_size = 0;
} else if (S_ISREG(mode) || S_ISLNK(mode)) {
method = 0;
attr2 = S_ISLNK(mode) ? ((mode | 0777) << 16) : 0;
attr2 = S_ISLNK(mode) ? ((mode | 0777) << 16) :
(mode & 0111) ? ((mode) << 16) : 0;
if (S_ISREG(mode) && zlib_compression_level != 0)
method = 8;
result = 0;
buffer = convert_sha1_file(path, sha1, mode, &type, &size);
buffer = sha1_file_to_archive(path, sha1, mode, &type, &size,
commit);
if (!buffer)
die("cannot read %s", sha1_to_hex(sha1));
crc = crc32(crc, buffer, size);
@@ -229,7 +232,8 @@ static int write_zip_entry(const unsigned char *sha1,
}
copy_le32(dirent.magic, 0x02014b50);
copy_le16(dirent.creator_version, S_ISLNK(mode) ? 0x0317 : 0);
copy_le16(dirent.creator_version,
S_ISLNK(mode) || (S_ISREG(mode) && (mode & 0111)) ? 0x0317 : 0);
copy_le16(dirent.version, 10);
copy_le16(dirent.flags, 0);
copy_le16(dirent.compression_method, method);
@@ -316,6 +320,7 @@ int write_zip_archive(struct archiver_args *args)
zip_dir = xmalloc(ZIP_DIRECTORY_MIN_SIZE);
zip_dir_size = ZIP_DIRECTORY_MIN_SIZE;
verbose = args->verbose;
commit = args->commit;
if (args->base && plen > 0 && args->base[plen - 1] == '/') {
char *base = xstrdup(args->base);

3
archive.h
View File

@@ -8,6 +8,7 @@ struct archiver_args {
const char *base;
struct tree *tree;
const unsigned char *commit_sha1;
const struct commit *commit;
time_t time;
const char **pathspec;
unsigned int verbose : 1;
@@ -42,4 +43,6 @@ extern int write_tar_archive(struct archiver_args *);
extern int write_zip_archive(struct archiver_args *);
extern void *parse_extra_zip_args(int argc, const char **argv);
extern void *sha1_file_to_archive(const char *path, const unsigned char *sha1, unsigned int mode, enum object_type *type, unsigned long *size, const struct commit *commit);
#endif /* ARCHIVE_H */

7
attr.c
View File

@@ -160,12 +160,7 @@ static const char *parse_attr(const char *src, int lineno, const char *cp,
else if (!equals)
e->setto = ATTR__TRUE;
else {
char *value;
int vallen = ep - equals;
value = xmalloc(vallen);
memcpy(value, equals+1, vallen-1);
value[vallen-1] = 0;
e->setto = value;
e->setto = xmemdupz(equals + 1, ep - equals - 1);
}
e->attr = git_attr(cp, len);
}

37
builtin-add.c
View File

@@ -12,6 +12,7 @@
#include "diffcore.h"
#include "commit.h"
#include "revision.h"
#include "run-command.h"
static const char builtin_add_usage[] =
"git-add [-n] [-v] [-f] [--interactive | -i] [-u] [--refresh] [--] <filepattern>...";
@@ -44,6 +45,7 @@ static void prune_directory(struct dir_struct *dir, const char **pathspec, int p
die("pathspec '%s' did not match any files",
pathspec[i]);
}
free(seen);
}
static void fill_directory(struct dir_struct *dir, const char **pathspec,
@@ -71,12 +73,8 @@ static void fill_directory(struct dir_struct *dir, const char **pathspec,
baselen = common_prefix(pathspec);
path = ".";
base = "";
if (baselen) {
char *common = xmalloc(baselen + 1);
memcpy(common, *pathspec, baselen);
common[baselen] = 0;
path = base = common;
}
if (baselen)
path = base = xmemdupz(*pathspec, baselen);
/* Read the directory and prune it */
read_directory(dir, path, base, baselen, pathspec);
@@ -95,14 +93,14 @@ static void update_callback(struct diff_queue_struct *q,
const char *path = p->one->path;
switch (p->status) {
default:
die("unexpacted diff status %c", p->status);
die("unexpected diff status %c", p->status);
case DIFF_STATUS_UNMERGED:
case DIFF_STATUS_MODIFIED:
case DIFF_STATUS_TYPE_CHANGED:
add_file_to_cache(path, verbose);
break;
case DIFF_STATUS_DELETED:
remove_file_from_cache(path);
cache_tree_invalidate_path(active_cache_tree, path);
if (verbose)
printf("remove '%s'\n", path);
break;
@@ -110,7 +108,7 @@ static void update_callback(struct diff_queue_struct *q,
}
}
static void update(int verbose, const char *prefix, const char **files)
void add_files_to_cache(int verbose, const char *prefix, const char **files)
{
struct rev_info rev;
init_revisions(&rev, prefix);
@@ -119,8 +117,6 @@ static void update(int verbose, const char *prefix, const char **files)
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = &verbose;
if (read_cache() < 0)
die("index file corrupt");
run_diff_files(&rev, 0);
}
@@ -139,6 +135,7 @@ static void refresh(int verbose, const char **pathspec)
if (!seen[i])
die("pathspec '%s' did not match any files", pathspec[i]);
}
free(seen);
}
static int git_add_config(const char *var, const char *value)
@@ -153,6 +150,13 @@ static int git_add_config(const char *var, const char *value)
return git_default_config(var, value);
}
int interactive_add(void)
{
const char *argv[2] = { "add--interactive", NULL };
return run_command_v_opt(argv, RUN_GIT_CMD);
}
static struct lock_file lock_file;
static const char ignore_error[] =
@@ -172,12 +176,9 @@ int cmd_add(int argc, const char **argv, const char *prefix)
add_interactive++;
}
if (add_interactive) {
const char *args[] = { "add--interactive", NULL };
if (add_interactive != 1 || argc != 2)
if (argc != 2)
die("add --interactive does not take any parameters");
execv_git_cmd(args);
exit(1);
exit(interactive_add());
}
git_config(git_add_config);
@@ -217,7 +218,9 @@ int cmd_add(int argc, const char **argv, const char *prefix)
}
if (take_worktree_changes) {
update(verbose, prefix, argv + i);
if (read_cache() < 0)
die("index file corrupt");
add_files_to_cache(verbose, prefix, argv + i);
goto finish;
}

566
builtin-apply.c
View File

@@ -41,7 +41,7 @@ static int apply_in_reverse;
static int apply_with_reject;
static int apply_verbosely;
static int no_add;
static int show_index_info;
static const char *fake_ancestor;
static int line_termination = '\n';
static unsigned long p_context = ULONG_MAX;
static const char apply_usage[] =
@@ -152,7 +152,7 @@ struct patch {
unsigned int is_rename:1;
struct fragment *fragments;
char *result;
unsigned long resultsize;
size_t resultsize;
char old_sha1_prefix[41];
char new_sha1_prefix[41];
struct patch *next;
@@ -163,15 +163,14 @@ static void say_patch_name(FILE *output, const char *pre, struct patch *patch, c
fputs(pre, output);
if (patch->old_name && patch->new_name &&
strcmp(patch->old_name, patch->new_name)) {
write_name_quoted(NULL, 0, patch->old_name, 1, output);
quote_c_style(patch->old_name, NULL, output, 0);
fputs(" => ", output);
write_name_quoted(NULL, 0, patch->new_name, 1, output);
}
else {
quote_c_style(patch->new_name, NULL, output, 0);
} else {
const char *n = patch->new_name;
if (!n)
n = patch->old_name;
write_name_quoted(NULL, 0, n, 1, output);
quote_c_style(n, NULL, output, 0);
}
fputs(post, output);
}
@@ -179,36 +178,18 @@ static void say_patch_name(FILE *output, const char *pre, struct patch *patch, c
#define CHUNKSIZE (8192)
#define SLOP (16)
static void *read_patch_file(int fd, unsigned long *sizep)
static void read_patch_file(struct strbuf *sb, int fd)
{
unsigned long size = 0, alloc = CHUNKSIZE;
void *buffer = xmalloc(alloc);
for (;;) {
ssize_t nr = alloc - size;
if (nr < 1024) {
alloc += CHUNKSIZE;
buffer = xrealloc(buffer, alloc);
nr = alloc - size;
}
nr = xread(fd, (char *) buffer + size, nr);
if (!nr)
break;
if (nr < 0)
die("git-apply: read returned %s", strerror(errno));
size += nr;
}
*sizep = size;
if (strbuf_read(sb, fd, 0) < 0)
die("git-apply: read returned %s", strerror(errno));
/*
* Make sure that we have some slop in the buffer
* so that we can do speculative "memcmp" etc, and
* see to it that it is NUL-filled.
*/
if (alloc < size + SLOP)
buffer = xrealloc(buffer, size + SLOP);
memset((char *) buffer + size, 0, SLOP);
return buffer;
strbuf_grow(sb, SLOP);
memset(sb->buf + sb->len, 0, SLOP);
}
static unsigned long linelen(const char *buffer, unsigned long size)
@@ -244,35 +225,33 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
{
int len;
const char *start = line;
char *name;
if (*line == '"') {
struct strbuf name;
/* Proposed "new-style" GNU patch/diff format; see
* http://marc.theaimsgroup.com/?l=git&m=112927316408690&w=2
*/
name = unquote_c_style(line, NULL);
if (name) {
char *cp = name;
while (p_value) {
cp = strchr(name, '/');
strbuf_init(&name, 0);
if (!unquote_c_style(&name, line, NULL)) {
char *cp;
for (cp = name.buf; p_value; p_value--) {
cp = strchr(cp, '/');
if (!cp)
break;
cp++;
p_value--;
}
if (cp) {
/* name can later be freed, so we need
* to memmove, not just return cp
*/
memmove(name, cp, strlen(cp) + 1);
strbuf_remove(&name, 0, cp - name.buf);
free(def);
return name;
}
else {
free(name);
name = NULL;
return strbuf_detach(&name, NULL);
}
}
strbuf_release(&name);
}
for (;;) {
@@ -304,13 +283,10 @@ static char *find_name(const char *line, char *def, int p_value, int terminate)
int deflen = strlen(def);
if (deflen < len && !strncmp(start, def, deflen))
return def;
free(def);
}
name = xmalloc(len + 1);
memcpy(name, start, len);
name[len] = 0;
free(def);
return name;
return xmemdupz(start, len);
}
static int count_slashes(const char *cp)
@@ -583,29 +559,30 @@ static const char *stop_at_slash(const char *line, int llen)
*/
static char *git_header_name(char *line, int llen)
{
int len;
const char *name;
const char *second = NULL;
size_t len;
line += strlen("diff --git ");
llen -= strlen("diff --git ");
if (*line == '"') {
const char *cp;
char *first = unquote_c_style(line, &second);
if (!first)
return NULL;
struct strbuf first;
struct strbuf sp;
strbuf_init(&first, 0);
strbuf_init(&sp, 0);
if (unquote_c_style(&first, line, &second))
goto free_and_fail1;
/* advance to the first slash */
cp = stop_at_slash(first, strlen(first));
if (!cp || cp == first) {
/* we do not accept absolute paths */
free_first_and_fail:
free(first);
return NULL;
}
len = strlen(cp+1);
memmove(first, cp+1, len+1); /* including NUL */
cp = stop_at_slash(first.buf, first.len);
/* we do not accept absolute paths */
if (!cp || cp == first.buf)
goto free_and_fail1;
strbuf_remove(&first, 0, cp + 1 - first.buf);
/* second points at one past closing dq of name.
* find the second name.
@@ -614,40 +591,40 @@ static char *git_header_name(char *line, int llen)
second++;
if (line + llen <= second)
goto free_first_and_fail;
goto free_and_fail1;
if (*second == '"') {
char *sp = unquote_c_style(second, NULL);
if (!sp)
goto free_first_and_fail;
cp = stop_at_slash(sp, strlen(sp));
if (!cp || cp == sp) {
free_both_and_fail:
free(sp);
goto free_first_and_fail;
}
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail1;
cp = stop_at_slash(sp.buf, sp.len);
if (!cp || cp == sp.buf)
goto free_and_fail1;
/* They must match, otherwise ignore */
if (strcmp(cp+1, first))
goto free_both_and_fail;
free(sp);
return first;
if (strcmp(cp + 1, first.buf))
goto free_and_fail1;
strbuf_release(&sp);
return strbuf_detach(&first, NULL);
}
/* unquoted second */
cp = stop_at_slash(second, line + llen - second);
if (!cp || cp == second)
goto free_first_and_fail;
goto free_and_fail1;
cp++;
if (line + llen - cp != len + 1 ||
memcmp(first, cp, len))
goto free_first_and_fail;
return first;
if (line + llen - cp != first.len + 1 ||
memcmp(first.buf, cp, first.len))
goto free_and_fail1;
return strbuf_detach(&first, NULL);
free_and_fail1:
strbuf_release(&first);
strbuf_release(&sp);
return NULL;
}
/* unquoted first name */
name = stop_at_slash(line, llen);
if (!name || name == line)
return NULL;
name++;
/* since the first name is unquoted, a dq if exists must be
@@ -655,28 +632,30 @@ static char *git_header_name(char *line, int llen)
*/
for (second = name; second < line + llen; second++) {
if (*second == '"') {
const char *cp = second;
struct strbuf sp;
const char *np;
char *sp = unquote_c_style(second, NULL);
if (!sp)
return NULL;
np = stop_at_slash(sp, strlen(sp));
if (!np || np == sp) {
free_second_and_fail:
free(sp);
return NULL;
}
strbuf_init(&sp, 0);
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail2;
np = stop_at_slash(sp.buf, sp.len);
if (!np || np == sp.buf)
goto free_and_fail2;
np++;
len = strlen(np);
if (len < cp - name &&
len = sp.buf + sp.len - np;
if (len < second - name &&
!strncmp(np, name, len) &&
isspace(name[len])) {
/* Good */
memmove(sp, np, len + 1);
return sp;
strbuf_remove(&sp, 0, np - sp.buf);
return strbuf_detach(&sp, NULL);
}
goto free_second_and_fail;
free_and_fail2:
strbuf_release(&sp);
return NULL;
}
}
@@ -700,10 +679,7 @@ static char *git_header_name(char *line, int llen)
break;
}
if (second[len] == '\n' && !memcmp(name, second, len)) {
char *ret = xmalloc(len + 1);
memcpy(ret, name, len);
ret[len] = 0;
return ret;
return xmemdupz(name, len);
}
}
}
@@ -1397,96 +1373,66 @@ static const char minuses[]= "--------------------------------------------------
static void show_stats(struct patch *patch)
{
const char *prefix = "";
char *name = patch->new_name;
char *qname = NULL;
int len, max, add, del, total;
struct strbuf qname;
char *cp = patch->new_name ? patch->new_name : patch->old_name;
int max, add, del;
if (!name)
name = patch->old_name;
if (0 < (len = quote_c_style(name, NULL, NULL, 0))) {
qname = xmalloc(len + 1);
quote_c_style(name, qname, NULL, 0);
name = qname;
}
strbuf_init(&qname, 0);
quote_c_style(cp, &qname, NULL, 0);
/*
* "scale" the filename
*/
len = strlen(name);
max = max_len;
if (max > 50)
max = 50;
if (len > max) {
char *slash;
prefix = "...";
max -= 3;
name += len - max;
slash = strchr(name, '/');
if (slash)
name = slash;
if (qname.len > max) {
cp = strchr(qname.buf + qname.len + 3 - max, '/');
if (!cp)
cp = qname.buf + qname.len + 3 - max;
strbuf_splice(&qname, 0, cp - qname.buf, "...", 3);
}
len = max;
if (patch->is_binary) {
printf(" %-*s | Bin\n", max, qname.buf);
strbuf_release(&qname);
return;
}
printf(" %-*s |", max, qname.buf);
strbuf_release(&qname);
/*
* scale the add/delete
*/
max = max_change;
if (max + len > 70)
max = 70 - len;
max = max + max_change > 70 ? 70 - max : max_change;
add = patch->lines_added;
del = patch->lines_deleted;
total = add + del;
if (max_change > 0) {
total = (total * max + max_change / 2) / max_change;
int total = ((add + del) * max + max_change / 2) / max_change;
add = (add * max + max_change / 2) / max_change;
del = total - add;
}
if (patch->is_binary)
printf(" %s%-*s | Bin\n", prefix, len, name);
else
printf(" %s%-*s |%5d %.*s%.*s\n", prefix,
len, name, patch->lines_added + patch->lines_deleted,
add, pluses, del, minuses);
free(qname);
printf("%5d %.*s%.*s\n", patch->lines_added + patch->lines_deleted,
add, pluses, del, minuses);
}
static int read_old_data(struct stat *st, const char *path, char **buf_p, unsigned long *alloc_p, unsigned long *size_p)
static int read_old_data(struct stat *st, const char *path, struct strbuf *buf)
{
int fd;
unsigned long got;
unsigned long nsize;
char *nbuf;
unsigned long size = *size_p;
char *buf = *buf_p;
switch (st->st_mode & S_IFMT) {
case S_IFLNK:
return readlink(path, buf, size) != size;
strbuf_grow(buf, st->st_size);
if (readlink(path, buf->buf, st->st_size) != st->st_size)
return -1;
strbuf_setlen(buf, st->st_size);
return 0;
case S_IFREG:
fd = open(path, O_RDONLY);
if (fd < 0)
return error("unable to open %s", path);
got = 0;
for (;;) {
ssize_t ret = xread(fd, buf + got, size - got);
if (ret <= 0)
break;
got += ret;
}
close(fd);
nsize = got;
nbuf = convert_to_git(path, buf, &nsize);
if (nbuf) {
free(buf);
*buf_p = nbuf;
*alloc_p = nsize;
*size_p = nsize;
}
return got != size;
if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
return error("unable to open or read %s", path);
convert_to_git(path, buf->buf, buf->len, buf);
return 0;
default:
return -1;
}
@@ -1514,7 +1460,8 @@ static int find_offset(const char *buf, unsigned long size, const char *fragment
}
/* Exact line number? */
if (!memcmp(buf + start, fragment, fragsize))
if ((start + fragsize <= size) &&
!memcmp(buf + start, fragment, fragsize))
return start;
/*
@@ -1590,12 +1537,6 @@ static void remove_last_line(const char **rbuf, int *rsize)
*rsize = offset + 1;
}
struct buffer_desc {
char *buffer;
unsigned long size;
unsigned long alloc;
};
static int apply_line(char *output, const char *patch, int plen)
{
/* plen is number of bytes to be copied from patch,
@@ -1641,15 +1582,22 @@ static int apply_line(char *output, const char *patch, int plen)
buf = output;
if (need_fix_leading_space) {
int consecutive_spaces = 0;
/* between patch[1..last_tab_in_indent] strip the
* funny spaces, updating them to tab as needed.
*/
for (i = 1; i < last_tab_in_indent; i++, plen--) {
char ch = patch[i];
if (ch != ' ')
if (ch != ' ') {
consecutive_spaces = 0;
*output++ = ch;
else if ((i % 8) == 0)
*output++ = '\t';
} else {
consecutive_spaces++;
if (consecutive_spaces == 8) {
*output++ = '\t';
consecutive_spaces = 0;
}
}
}
fixed = 1;
i = last_tab_in_indent;
@@ -1665,10 +1613,9 @@ static int apply_line(char *output, const char *patch, int plen)
return output + plen - buf;
}
static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, int inaccurate_eof)
static int apply_one_fragment(struct strbuf *buf, struct fragment *frag, int inaccurate_eof)
{
int match_beginning, match_end;
char *buf = desc->buffer;
const char *patch = frag->patch;
int offset, size = frag->size;
char *old = xmalloc(size);
@@ -1779,24 +1726,17 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
lines = 0;
pos = frag->newpos;
for (;;) {
offset = find_offset(buf, desc->size,
offset = find_offset(buf->buf, buf->len,
oldlines, oldsize, pos, &lines);
if (match_end && offset + oldsize != desc->size)
if (match_end && offset + oldsize != buf->len)
offset = -1;
if (match_beginning && offset)
offset = -1;
if (offset >= 0) {
int diff;
unsigned long size, alloc;
if (new_whitespace == strip_whitespace &&
(desc->size - oldsize - offset == 0)) /* end of file? */
(buf->len - oldsize - offset == 0)) /* end of file? */
newsize -= new_blank_lines_at_end;
diff = newsize - oldsize;
size = desc->size + diff;
alloc = desc->alloc;
/* Warn if it was necessary to reduce the number
* of context lines.
*/
@@ -1806,19 +1746,8 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
" to apply fragment at %d\n",
leading, trailing, pos + lines);
if (size > alloc) {
alloc = size + 8192;
desc->alloc = alloc;
buf = xrealloc(buf, alloc);
desc->buffer = buf;
}
desc->size = size;
memmove(buf + offset + newsize,
buf + offset + oldsize,
size - offset - newsize);
memcpy(buf + offset, newlines, newsize);
strbuf_splice(buf, offset, oldsize, newlines, newsize);
offset = 0;
break;
}
@@ -1854,12 +1783,11 @@ static int apply_one_fragment(struct buffer_desc *desc, struct fragment *frag, i
return offset;
}
static int apply_binary_fragment(struct buffer_desc *desc, struct patch *patch)
static int apply_binary_fragment(struct strbuf *buf, struct patch *patch)
{
unsigned long dst_size;
struct fragment *fragment = patch->fragments;
void *data;
void *result;
unsigned long len;
void *dst;
/* Binary patch is irreversible without the optional second hunk */
if (apply_in_reverse) {
@@ -1870,29 +1798,24 @@ static int apply_binary_fragment(struct buffer_desc *desc, struct patch *patch)
? patch->new_name : patch->old_name);
fragment = fragment->next;
}
data = (void*) fragment->patch;
switch (fragment->binary_patch_method) {
case BINARY_DELTA_DEFLATED:
result = patch_delta(desc->buffer, desc->size,
data,
fragment->size,
&dst_size);
free(desc->buffer);
desc->buffer = result;
break;
dst = patch_delta(buf->buf, buf->len, fragment->patch,
fragment->size, &len);
if (!dst)
return -1;
/* XXX patch_delta NUL-terminates */
strbuf_attach(buf, dst, len, len + 1);
return 0;
case BINARY_LITERAL_DEFLATED:
free(desc->buffer);
desc->buffer = data;
dst_size = fragment->size;
break;
strbuf_reset(buf);
strbuf_add(buf, fragment->patch, fragment->size);
return 0;
}
if (!desc->buffer)
return -1;
desc->size = desc->alloc = dst_size;
return 0;
return -1;
}
static int apply_binary(struct buffer_desc *desc, struct patch *patch)
static int apply_binary(struct strbuf *buf, struct patch *patch)
{
const char *name = patch->old_name ? patch->old_name : patch->new_name;
unsigned char sha1[20];
@@ -1911,7 +1834,7 @@ static int apply_binary(struct buffer_desc *desc, struct patch *patch)
/* See if the old one matches what the patch
* applies to.
*/
hash_sha1_file(desc->buffer, desc->size, blob_type, sha1);
hash_sha1_file(buf->buf, buf->len, blob_type, sha1);
if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
return error("the patch applies to '%s' (%s), "
"which does not match the "
@@ -1920,16 +1843,14 @@ static int apply_binary(struct buffer_desc *desc, struct patch *patch)
}
else {
/* Otherwise, the old one must be empty. */
if (desc->size)
if (buf->len)
return error("the patch applies to an empty "
"'%s' but it is not empty", name);
}
get_sha1_hex(patch->new_sha1_prefix, sha1);
if (is_null_sha1(sha1)) {
free(desc->buffer);
desc->alloc = desc->size = 0;
desc->buffer = NULL;
strbuf_release(buf);
return 0; /* deletion patch */
}
@@ -1937,43 +1858,44 @@ static int apply_binary(struct buffer_desc *desc, struct patch *patch)
/* We already have the postimage */
enum object_type type;
unsigned long size;
char *result;
free(desc->buffer);
desc->buffer = read_sha1_file(sha1, &type, &size);
if (!desc->buffer)
result = read_sha1_file(sha1, &type, &size);
if (!result)
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;
/* XXX read_sha1_file NUL-terminates */
strbuf_attach(buf, result, size, size + 1);
} else {
/* We have verified buf matches the preimage;
* apply the patch data to it, which is stored
* in the patch->fragments->{patch,size}.
*/
if (apply_binary_fragment(desc, patch))
if (apply_binary_fragment(buf, patch))
return error("binary patch does not apply to '%s'",
name);
/* verify that the result matches */
hash_sha1_file(desc->buffer, desc->size, blob_type, sha1);
hash_sha1_file(buf->buf, buf->len, blob_type, sha1);
if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix))
return error("binary patch to '%s' creates incorrect result (expecting %s, got %s)", name, patch->new_sha1_prefix, sha1_to_hex(sha1));
return error("binary patch to '%s' creates incorrect result (expecting %s, got %s)",
name, patch->new_sha1_prefix, sha1_to_hex(sha1));
}
return 0;
}
static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
static int apply_fragments(struct strbuf *buf, struct patch *patch)
{
struct fragment *frag = patch->fragments;
const char *name = patch->old_name ? patch->old_name : patch->new_name;
if (patch->is_binary)
return apply_binary(desc, patch);
return apply_binary(buf, patch);
while (frag) {
if (apply_one_fragment(desc, frag, patch->inaccurate_eof)) {
if (apply_one_fragment(buf, frag, patch->inaccurate_eof)) {
error("patch failed: %s:%ld", name, frag->oldpos);
if (!apply_with_reject)
return -1;
@@ -1984,76 +1906,56 @@ static int apply_fragments(struct buffer_desc *desc, struct patch *patch)
return 0;
}
static int read_file_or_gitlink(struct cache_entry *ce, char **buf_p,
unsigned long *size_p)
static int read_file_or_gitlink(struct cache_entry *ce, struct strbuf *buf)
{
if (!ce)
return 0;
if (S_ISGITLINK(ntohl(ce->ce_mode))) {
*buf_p = xmalloc(100);
*size_p = snprintf(*buf_p, 100,
"Subproject commit %s\n", sha1_to_hex(ce->sha1));
strbuf_grow(buf, 100);
strbuf_addf(buf, "Subproject commit %s\n", sha1_to_hex(ce->sha1));
} else {
enum object_type type;
*buf_p = read_sha1_file(ce->sha1, &type, size_p);
if (!*buf_p)
unsigned long sz;
char *result;
result = read_sha1_file(ce->sha1, &type, &sz);
if (!result)
return -1;
/* XXX read_sha1_file NUL-terminates */
strbuf_attach(buf, result, sz, sz + 1);
}
return 0;
}
static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce)
{
char *buf;
unsigned long size, alloc;
struct buffer_desc desc;
struct strbuf buf;
size = 0;
alloc = 0;
buf = NULL;
strbuf_init(&buf, 0);
if (cached) {
if (read_file_or_gitlink(ce, &buf, &size))
if (read_file_or_gitlink(ce, &buf))
return error("read of %s failed", patch->old_name);
alloc = size;
} else if (patch->old_name) {
if (S_ISGITLINK(patch->old_mode)) {
if (ce)
read_file_or_gitlink(ce, &buf, &size);
else {
if (ce) {
read_file_or_gitlink(ce, &buf);
} else {
/*
* There is no way to apply subproject
* patch without looking at the index.
*/
patch->fragments = NULL;
size = 0;
}
}
else {
size = xsize_t(st->st_size);
alloc = size + 8192;
buf = xmalloc(alloc);
if (read_old_data(st, patch->old_name,
&buf, &alloc, &size))
return error("read of %s failed",
patch->old_name);
} else {
if (read_old_data(st, patch->old_name, &buf))
return error("read of %s failed", patch->old_name);
}
}
desc.size = size;
desc.alloc = alloc;
desc.buffer = buf;
if (apply_fragments(&desc, patch) < 0)
if (apply_fragments(&buf, patch) < 0)
return -1; /* note with --reject this succeeds. */
/* NUL terminate the result */
if (desc.alloc <= desc.size)
desc.buffer = xrealloc(desc.buffer, desc.size + 1);
desc.buffer[desc.size] = 0;
patch->result = desc.buffer;
patch->resultsize = desc.size;
patch->result = strbuf_detach(&buf, &patch->resultsize);
if (0 < patch->is_delete && patch->resultsize)
return error("removal patch leaves file contents");
@@ -2226,9 +2128,26 @@ static int check_patch_list(struct patch *patch)
return err;
}
static void show_index_list(struct patch *list)
/* This function tries to read the sha1 from the current index */
static int get_current_sha1(const char *path, unsigned char *sha1)
{
int pos;
if (read_cache() < 0)
return -1;
pos = cache_name_pos(path, strlen(path));
if (pos < 0)
return -1;
hashcpy(sha1, active_cache[pos]->sha1);
return 0;
}
/* Build an index that contains the just the files needed for a 3way merge */
static void build_fake_ancestor(struct patch *list, const char *filename)
{
struct patch *patch;
struct index_state result = { 0 };
int fd;
/* Once we start supporting the reverse patch, it may be
* worth showing the new sha1 prefix, but until then...
@@ -2236,24 +2155,36 @@ static void show_index_list(struct patch *list)
for (patch = list; patch; patch = patch->next) {
const unsigned char *sha1_ptr;
unsigned char sha1[20];
struct cache_entry *ce;
const char *name;
name = patch->old_name ? patch->old_name : patch->new_name;
if (0 < patch->is_new)
sha1_ptr = null_sha1;
continue;
else if (get_sha1(patch->old_sha1_prefix, sha1))
die("sha1 information is lacking or useless (%s).",
name);
/* git diff has no index line for mode/type changes */
if (!patch->lines_added && !patch->lines_deleted) {
if (get_current_sha1(patch->new_name, sha1) ||
get_current_sha1(patch->old_name, sha1))
die("mode change for %s, which is not "
"in current HEAD", name);
sha1_ptr = sha1;
} else
die("sha1 information is lacking or useless "
"(%s).", name);
else
sha1_ptr = sha1;
printf("%06o %s ",patch->old_mode, sha1_to_hex(sha1_ptr));
if (line_termination && quote_c_style(name, NULL, NULL, 0))
quote_c_style(name, NULL, stdout, 0);
else
fputs(name, stdout);
putchar(line_termination);
ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0);
if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))
die ("Could not add %s to temporary index", name);
}
fd = open(filename, O_WRONLY | O_CREAT, 0666);
if (fd < 0 || write_index(&result, fd) || close(fd))
die ("Could not write temporary index to %s", filename);
discard_index(&result);
}
static void stat_patch_list(struct patch *patch)
@@ -2278,13 +2209,8 @@ static void numstat_patch_list(struct patch *patch)
if (patch->is_binary)
printf("-\t-\t");
else
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);
else
fputs(name, stdout);
putchar(line_termination);
printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
write_name_quoted(name, stdout, line_termination);
}
}
@@ -2393,7 +2319,6 @@ static void remove_file(struct patch *patch, int rmdir_empty)
if (update_index) {
if (remove_file_from_cache(patch->old_name) < 0)
die("unable to remove %s from index", patch->old_name);
cache_tree_invalidate_path(active_cache_tree, patch->old_name);
}
if (!cached) {
if (S_ISGITLINK(patch->old_mode)) {
@@ -2450,7 +2375,7 @@ static void add_index_file(const char *path, unsigned mode, void *buf, unsigned
static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
{
int fd;
char *nbuf;
struct strbuf nbuf;
if (S_ISGITLINK(mode)) {
struct stat st;
@@ -2469,23 +2394,16 @@ static int try_create_file(const char *path, unsigned int mode, const char *buf,
if (fd < 0)
return -1;
nbuf = convert_to_working_tree(path, buf, &size);
if (nbuf)
buf = nbuf;
while (size) {
int written = xwrite(fd, buf, size);
if (written < 0)
die("writing file %s: %s", path, strerror(errno));
if (!written)
die("out of space writing file %s", path);
buf += written;
size -= written;
strbuf_init(&nbuf, 0);
if (convert_to_working_tree(path, buf, size, &nbuf)) {
size = nbuf.len;
buf = nbuf.buf;
}
write_or_die(fd, buf, size);
strbuf_release(&nbuf);
if (close(fd) < 0)
die("closing file %s: %s", path, strerror(errno));
if (nbuf)
free(nbuf);
return 0;
}
@@ -2548,7 +2466,6 @@ static void create_file(struct patch *patch)
mode = S_IFREG | 0644;
create_one_file(path, mode, buf, size);
add_index_file(path, mode, buf, size);
cache_tree_invalidate_path(active_cache_tree, path);
}
/* phase zero is to remove, phase one is to create */
@@ -2719,22 +2636,22 @@ static void prefix_patches(struct patch *p)
static int apply_patch(int fd, const char *filename, int inaccurate_eof)
{
unsigned long offset, size;
char *buffer = read_patch_file(fd, &size);
size_t offset;
struct strbuf buf;
struct patch *list = NULL, **listp = &list;
int skipped_patch = 0;
strbuf_init(&buf, 0);
patch_input_file = filename;
if (!buffer)
return -1;
read_patch_file(&buf, fd);
offset = 0;
while (size > 0) {
while (offset < buf.len) {
struct patch *patch;
int nr;
patch = xcalloc(1, sizeof(*patch));
patch->inaccurate_eof = inaccurate_eof;
nr = parse_chunk(buffer + offset, size, patch);
nr = parse_chunk(buf.buf + offset, buf.len - offset, patch);
if (nr < 0)
break;
if (apply_in_reverse)
@@ -2752,7 +2669,6 @@ static int apply_patch(int fd, const char *filename, int inaccurate_eof)
skipped_patch++;
}
offset += nr;
size -= nr;
}
if (whitespace_error && (new_whitespace == error_on_whitespace))
@@ -2775,8 +2691,8 @@ static int apply_patch(int fd, const char *filename, int inaccurate_eof)
if (apply && write_out_results(list, skipped_patch))
exit(1);
if (show_index_info)
show_index_list(list);
if (fake_ancestor)
build_fake_ancestor(list, fake_ancestor);
if (diffstat)
stat_patch_list(list);
@@ -2787,7 +2703,7 @@ static int apply_patch(int fd, const char *filename, int inaccurate_eof)
if (summary)
summary_patch_list(list);
free(buffer);
strbuf_release(&buf);
return 0;
}
@@ -2884,9 +2800,11 @@ int cmd_apply(int argc, const char **argv, const char *unused_prefix)
apply = 1;
continue;
}
if (!strcmp(arg, "--index-info")) {
if (!strcmp(arg, "--build-fake-ancestor")) {
apply = 0;
show_index_info = 1;
if (++i >= argc)
die ("need a filename");
fake_ancestor = argv[i];
continue;
}
if (!strcmp(arg, "-z")) {

92
builtin-archive.c
View File

@@ -10,6 +10,7 @@
#include "exec_cmd.h"
#include "pkt-line.h"
#include "sideband.h"
#include "attr.h"
static const char archive_usage[] = \
"git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
@@ -29,7 +30,7 @@ static int run_remote_archiver(const char *remote, int argc,
{
char *url, buf[LARGE_PACKET_MAX];
int fd[2], i, len, rv;
pid_t pid;
struct child_process *conn;
const char *exec = "git-upload-archive";
int exec_at = 0;
@@ -45,9 +46,7 @@ static int run_remote_archiver(const char *remote, int argc,
}
url = xstrdup(remote);
pid = git_connect(fd, url, exec, 0);
if (pid < 0)
return pid;
conn = git_connect(fd, url, exec, 0);
for (i = 1; i < argc; i++) {
if (i == exec_at)
@@ -75,11 +74,91 @@ static int run_remote_archiver(const char *remote, int argc,
rv = recv_sideband("archive", fd[0], 1, 2);
close(fd[0]);
close(fd[1]);
rv |= finish_connect(pid);
rv |= finish_connect(conn);
return !!rv;
}
static void format_subst(const struct commit *commit,
const char *src, size_t len,
struct strbuf *buf)
{
char *to_free = NULL;
struct strbuf fmt;
if (src == buf->buf)
to_free = strbuf_detach(buf, NULL);
strbuf_init(&fmt, 0);
for (;;) {
const char *b, *c;
b = memmem(src, len, "$Format:", 8);
if (!b || src + len < b + 9)
break;
c = memchr(b + 8, '$', len - 8);
if (!c)
break;
strbuf_reset(&fmt);
strbuf_add(&fmt, b + 8, c - b - 8);
strbuf_add(buf, src, b - src);
format_commit_message(commit, fmt.buf, buf);
len -= c + 1 - src;
src = c + 1;
}
strbuf_add(buf, src, len);
strbuf_release(&fmt);
free(to_free);
}
static int convert_to_archive(const char *path,
const void *src, size_t len,
struct strbuf *buf,
const struct commit *commit)
{
static struct git_attr *attr_export_subst;
struct git_attr_check check[1];
if (!commit)
return 0;
if (!attr_export_subst)
attr_export_subst = git_attr("export-subst", 12);
check[0].attr = attr_export_subst;
if (git_checkattr(path, ARRAY_SIZE(check), check))
return 0;
if (!ATTR_TRUE(check[0].value))
return 0;
format_subst(commit, src, len, buf);
return 1;
}
void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
unsigned int mode, enum object_type *type,
unsigned long *sizep,
const struct commit *commit)
{
void *buffer;
buffer = read_sha1_file(sha1, type, sizep);
if (buffer && S_ISREG(mode)) {
struct strbuf buf;
size_t size = 0;
strbuf_init(&buf, 0);
strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
convert_to_working_tree(path, buf.buf, buf.len, &buf);
convert_to_archive(path, buf.buf, buf.len, &buf, commit);
buffer = strbuf_detach(&buf, &size);
*sizep = size;
}
return buffer;
}
static int init_archiver(const char *name, struct archiver *ar)
{
int rv = -1, i;
@@ -109,7 +188,7 @@ void parse_treeish_arg(const char **argv, struct archiver_args *ar_args,
const unsigned char *commit_sha1;
time_t archive_time;
struct tree *tree;
struct commit *commit;
const struct commit *commit;
unsigned char sha1[20];
if (get_sha1(name, sha1))
@@ -142,6 +221,7 @@ void parse_treeish_arg(const char **argv, struct archiver_args *ar_args,
}
ar_args->tree = tree;
ar_args->commit_sha1 = commit_sha1;
ar_args->commit = commit;
ar_args->time = archive_time;
}

44
builtin-blame.c
View File

@@ -1430,8 +1430,7 @@ static void get_commit_info(struct commit *commit,
static void write_filename_info(const char *path)
{
printf("filename ");
write_name_quoted(NULL, 0, path, 1, stdout);
putchar('\n');
write_name_quoted(path, stdout, '\n');
}
/*
@@ -2001,11 +2000,9 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
struct commit *commit;
struct origin *origin;
unsigned char head_sha1[20];
char *buf;
struct strbuf buf;
const char *ident;
int fd;
time_t now;
unsigned long fin_size;
int size, len;
struct cache_entry *ce;
unsigned mode;
@@ -2023,9 +2020,11 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
origin = make_origin(commit, path);
strbuf_init(&buf, 0);
if (!contents_from || strcmp("-", contents_from)) {
struct stat st;
const char *read_from;
unsigned long fin_size;
if (contents_from) {
if (stat(contents_from, &st) < 0)
@@ -2038,19 +2037,16 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
read_from = path;
}
fin_size = xsize_t(st.st_size);
buf = xmalloc(fin_size+1);
mode = canon_mode(st.st_mode);
switch (st.st_mode & S_IFMT) {
case S_IFREG:
fd = open(read_from, O_RDONLY);
if (fd < 0)
die("cannot open %s", read_from);
if (read_in_full(fd, buf, fin_size) != fin_size)
die("cannot read %s", read_from);
if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
die("cannot open or read %s", read_from);
break;
case S_IFLNK:
if (readlink(read_from, buf, fin_size+1) != fin_size)
if (readlink(read_from, buf.buf, buf.alloc) != fin_size)
die("cannot readlink %s", read_from);
buf.len = fin_size;
break;
default:
die("unsupported file type %s", read_from);
@@ -2059,26 +2055,14 @@ static struct commit *fake_working_tree_commit(const char *path, const char *con
else {
/* Reading from stdin */
contents_from = "standard input";
buf = NULL;
fin_size = 0;
mode = 0;
while (1) {
ssize_t cnt = 8192;
buf = xrealloc(buf, fin_size + cnt);
cnt = xread(0, buf + fin_size, cnt);
if (cnt < 0)
die("read error %s from stdin",
strerror(errno));
if (!cnt)
break;
fin_size += cnt;
}
buf = xrealloc(buf, fin_size + 1);
if (strbuf_read(&buf, 0, 0) < 0)
die("read error %s from stdin", strerror(errno));
}
buf[fin_size] = 0;
origin->file.ptr = buf;
origin->file.size = fin_size;
pretend_sha1_file(buf, fin_size, OBJ_BLOB, origin->blob_sha1);
convert_to_git(path, buf.buf, buf.len, &buf);
origin->file.ptr = buf.buf;
origin->file.size = buf.len;
pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
commit->util = origin;
/*

15
builtin-branch.c
View File

@@ -268,23 +268,22 @@ static void print_ref_item(struct ref_item *item, int maxwidth, int verbose,
}
if (verbose) {
char *subject = NULL;
unsigned long subject_len = 0;
struct strbuf subject;
const char *sub = " **** invalid ref ****";
strbuf_init(&subject, 0);
commit = lookup_commit(item->sha1);
if (commit && !parse_commit(commit)) {
pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
&subject, &subject_len, 0,
NULL, NULL, 0);
sub = subject;
pretty_print_commit(CMIT_FMT_ONELINE, commit,
&subject, 0, NULL, NULL, 0);
sub = subject.buf;
}
printf("%c %s%-*s%s %s %s\n", c, branch_get_color(color),
maxwidth, item->name,
branch_get_color(COLOR_BRANCH_RESET),
find_unique_abbrev(item->sha1, abbrev), sub);
if (subject)
free(subject);
strbuf_release(&subject);
} else {
printf("%c %s%s%s\n", c, branch_get_color(color), item->name,
branch_get_color(COLOR_BRANCH_RESET));

365
builtin-bundle.c
View File

@@ -1,11 +1,6 @@
#include "builtin.h"
#include "cache.h"
#include "object.h"
#include "commit.h"
#include "diff.h"
#include "revision.h"
#include "list-objects.h"
#include "run-command.h"
#include "bundle.h"
/*
* Basic handler for bundle files to connect repositories via sneakernet.
@@ -16,355 +11,6 @@
static const char *bundle_usage="git-bundle (create <bundle> <git-rev-list args> | verify <bundle> | list-heads <bundle> [refname]... | unbundle <bundle> [refname]... )";
static const char bundle_signature[] = "# v2 git bundle\n";
struct ref_list {
unsigned int nr, alloc;
struct ref_list_entry {
unsigned char sha1[20];
char *name;
} *list;
};
static void add_to_ref_list(const unsigned char *sha1, const char *name,
struct ref_list *list)
{
if (list->nr + 1 >= list->alloc) {
list->alloc = alloc_nr(list->nr + 1);
list->list = xrealloc(list->list,
list->alloc * sizeof(list->list[0]));
}
memcpy(list->list[list->nr].sha1, sha1, 20);
list->list[list->nr].name = xstrdup(name);
list->nr++;
}
struct bundle_header {
struct ref_list prerequisites;
struct ref_list references;
};
/* returns an fd */
static int read_header(const char *path, struct bundle_header *header) {
char buffer[1024];
int fd;
long fpos;
FILE *ffd = fopen(path, "rb");
if (!ffd)
return error("could not open '%s'", path);
if (!fgets(buffer, sizeof(buffer), ffd) ||
strcmp(buffer, bundle_signature)) {
fclose(ffd);
return error("'%s' does not look like a v2 bundle file", path);
}
while (fgets(buffer, sizeof(buffer), ffd)
&& buffer[0] != '\n') {
int is_prereq = buffer[0] == '-';
int offset = is_prereq ? 1 : 0;
int len = strlen(buffer);
unsigned char sha1[20];
struct ref_list *list = is_prereq ? &header->prerequisites
: &header->references;
char delim;
if (buffer[len - 1] == '\n')
buffer[len - 1] = '\0';
if (get_sha1_hex(buffer + offset, sha1)) {
warning("unrecognized header: %s", buffer);
continue;
}
delim = buffer[40 + offset];
if (!isspace(delim) && (delim != '\0' || !is_prereq))
die ("invalid header: %s", buffer);
add_to_ref_list(sha1, isspace(delim) ?
buffer + 41 + offset : "", list);
}
fpos = ftell(ffd);
fclose(ffd);
fd = open(path, O_RDONLY);
if (fd < 0)
return error("could not open '%s'", path);
lseek(fd, fpos, SEEK_SET);
return fd;
}
static int list_refs(struct ref_list *r, int argc, const char **argv)
{
int i;
for (i = 0; i < r->nr; i++) {
if (argc > 1) {
int j;
for (j = 1; j < argc; j++)
if (!strcmp(r->list[i].name, argv[j]))
break;
if (j == argc)
continue;
}
printf("%s %s\n", sha1_to_hex(r->list[i].sha1),
r->list[i].name);
}
return 0;
}
#define PREREQ_MARK (1u<<16)
static int verify_bundle(struct bundle_header *header, int verbose)
{
/*
* Do fast check, then if any prereqs are missing then go line by line
* to be verbose about the errors
*/
struct ref_list *p = &header->prerequisites;
struct rev_info revs;
const char *argv[] = {NULL, "--all"};
struct object_array refs;
struct commit *commit;
int i, ret = 0, req_nr;
const char *message = "Repository lacks these prerequisite commits:";
init_revisions(&revs, NULL);
for (i = 0; i < p->nr; i++) {
struct ref_list_entry *e = p->list + i;
struct object *o = parse_object(e->sha1);
if (o) {
o->flags |= PREREQ_MARK;
add_pending_object(&revs, o, e->name);
continue;
}
if (++ret == 1)
error(message);
error("%s %s", sha1_to_hex(e->sha1), e->name);
}
if (revs.pending.nr != p->nr)
return ret;
req_nr = revs.pending.nr;
setup_revisions(2, argv, &revs, NULL);
memset(&refs, 0, sizeof(struct object_array));
for (i = 0; i < revs.pending.nr; i++) {
struct object_array_entry *e = revs.pending.objects + i;
add_object_array(e->item, e->name, &refs);
}
prepare_revision_walk(&revs);
i = req_nr;
while (i && (commit = get_revision(&revs)))
if (commit->object.flags & PREREQ_MARK)
i--;
for (i = 0; i < req_nr; i++)
if (!(refs.objects[i].item->flags & SHOWN)) {
if (++ret == 1)
error(message);
error("%s %s", sha1_to_hex(refs.objects[i].item->sha1),
refs.objects[i].name);
}
for (i = 0; i < refs.nr; i++)
clear_commit_marks((struct commit *)refs.objects[i].item, -1);
if (verbose) {
struct ref_list *r;
r = &header->references;
printf("The bundle contains %d ref%s\n",
r->nr, (1 < r->nr) ? "s" : "");
list_refs(r, 0, NULL);
r = &header->prerequisites;
printf("The bundle requires these %d ref%s\n",
r->nr, (1 < r->nr) ? "s" : "");
list_refs(r, 0, NULL);
}
return ret;
}
static int list_heads(struct bundle_header *header, int argc, const char **argv)
{
return list_refs(&header->references, argc, argv);
}
static int create_bundle(struct bundle_header *header, const char *path,
int argc, const char **argv)
{
static struct lock_file lock;
int bundle_fd = -1;
int bundle_to_stdout;
const char **argv_boundary = xmalloc((argc + 4) * sizeof(const char *));
const char **argv_pack = xmalloc(5 * sizeof(const char *));
int i, ref_count = 0;
char buffer[1024];
struct rev_info revs;
struct child_process rls;
FILE *rls_fout;
bundle_to_stdout = !strcmp(path, "-");
if (bundle_to_stdout)
bundle_fd = 1;
else
bundle_fd = hold_lock_file_for_update(&lock, path, 1);
/* write signature */
write_or_die(bundle_fd, bundle_signature, strlen(bundle_signature));
/* init revs to list objects for pack-objects later */
save_commit_buffer = 0;
init_revisions(&revs, NULL);
/* write prerequisites */
memcpy(argv_boundary + 3, argv + 1, argc * sizeof(const char *));
argv_boundary[0] = "rev-list";
argv_boundary[1] = "--boundary";
argv_boundary[2] = "--pretty=oneline";
argv_boundary[argc + 2] = NULL;
memset(&rls, 0, sizeof(rls));
rls.argv = argv_boundary;
rls.out = -1;
rls.git_cmd = 1;
if (start_command(&rls))
return -1;
rls_fout = fdopen(rls.out, "r");
while (fgets(buffer, sizeof(buffer), rls_fout)) {
unsigned char sha1[20];
if (buffer[0] == '-') {
write_or_die(bundle_fd, buffer, strlen(buffer));
if (!get_sha1_hex(buffer + 1, sha1)) {
struct object *object = parse_object(sha1);
object->flags |= UNINTERESTING;
add_pending_object(&revs, object, buffer);
}
} else if (!get_sha1_hex(buffer, sha1)) {
struct object *object = parse_object(sha1);
object->flags |= SHOWN;
}
}
fclose(rls_fout);
if (finish_command(&rls))
return error("rev-list died");
/* write references */
argc = setup_revisions(argc, argv, &revs, NULL);
if (argc > 1)
return error("unrecognized argument: %s'", argv[1]);
for (i = 0; i < revs.pending.nr; i++) {
struct object_array_entry *e = revs.pending.objects + i;
unsigned char sha1[20];
char *ref;
if (e->item->flags & UNINTERESTING)
continue;
if (dwim_ref(e->name, strlen(e->name), sha1, &ref) != 1)
continue;
/*
* Make sure the refs we wrote out is correct; --max-count and
* other limiting options could have prevented all the tips
* from getting output.
*
* Non commit objects such as tags and blobs do not have
* this issue as they are not affected by those extra
* constraints.
*/
if (!(e->item->flags & SHOWN) && e->item->type == OBJ_COMMIT) {
warning("ref '%s' is excluded by the rev-list options",
e->name);
free(ref);
continue;
}
/*
* If you run "git bundle create bndl v1.0..v2.0", the
* name of the positive ref is "v2.0" but that is the
* commit that is referenced by the tag, and not the tag
* itself.
*/
if (hashcmp(sha1, e->item->sha1)) {
/*
* Is this the positive end of a range expressed
* in terms of a tag (e.g. v2.0 from the range
* "v1.0..v2.0")?
*/
struct commit *one = lookup_commit_reference(sha1);
struct object *obj;
if (e->item == &(one->object)) {
/*
* Need to include e->name as an
* independent ref to the pack-objects
* input, so that the tag is included
* in the output; otherwise we would
* end up triggering "empty bundle"
* error.
*/
obj = parse_object(sha1);
obj->flags |= SHOWN;
add_pending_object(&revs, obj, e->name);
}
free(ref);
continue;
}
ref_count++;
write_or_die(bundle_fd, sha1_to_hex(e->item->sha1), 40);
write_or_die(bundle_fd, " ", 1);
write_or_die(bundle_fd, ref, strlen(ref));
write_or_die(bundle_fd, "\n", 1);
free(ref);
}
if (!ref_count)
die ("Refusing to create empty bundle.");
/* end header */
write_or_die(bundle_fd, "\n", 1);
/* write pack */
argv_pack[0] = "pack-objects";
argv_pack[1] = "--all-progress";
argv_pack[2] = "--stdout";
argv_pack[3] = "--thin";
argv_pack[4] = NULL;
memset(&rls, 0, sizeof(rls));
rls.argv = argv_pack;
rls.in = -1;
rls.out = bundle_fd;
rls.git_cmd = 1;
if (start_command(&rls))
return error("Could not spawn pack-objects");
for (i = 0; i < revs.pending.nr; i++) {
struct object *object = revs.pending.objects[i].item;
if (object->flags & UNINTERESTING)
write(rls.in, "^", 1);
write(rls.in, sha1_to_hex(object->sha1), 40);
write(rls.in, "\n", 1);
}
if (finish_command(&rls))
return error ("pack-objects died");
close(bundle_fd);
if (!bundle_to_stdout)
commit_lock_file(&lock);
return 0;
}
static int unbundle(struct bundle_header *header, int bundle_fd,
int argc, const char **argv)
{
const char *argv_index_pack[] = {"index-pack",
"--fix-thin", "--stdin", NULL};
struct child_process ip;
if (verify_bundle(header, 0))
return -1;
memset(&ip, 0, sizeof(ip));
ip.argv = argv_index_pack;
ip.in = bundle_fd;
ip.no_stdout = 1;
ip.git_cmd = 1;
if (run_command(&ip))
return error("index-pack died");
return list_heads(header, argc, argv);
}
int cmd_bundle(int argc, const char **argv, const char *prefix)
{
struct bundle_header header;
@@ -388,8 +34,8 @@ int cmd_bundle(int argc, const char **argv, const char *prefix)
}
memset(&header, 0, sizeof(header));
if (strcmp(cmd, "create") &&
(bundle_fd = read_header(bundle_file, &header)) < 0)
if (strcmp(cmd, "create") && (bundle_fd =
read_bundle_header(bundle_file, &header)) < 0)
return 1;
if (!strcmp(cmd, "verify")) {
@@ -401,7 +47,7 @@ int cmd_bundle(int argc, const char **argv, const char *prefix)
}
if (!strcmp(cmd, "list-heads")) {
close(bundle_fd);
return !!list_heads(&header, argc, argv);
return !!list_bundle_refs(&header, argc, argv);
}
if (!strcmp(cmd, "create")) {
if (nongit)
@@ -410,7 +56,8 @@ int cmd_bundle(int argc, const char **argv, const char *prefix)
} else if (!strcmp(cmd, "unbundle")) {
if (nongit)
die("Need a repository to unbundle.");
return !!unbundle(&header, bundle_fd, argc, argv);
return !!unbundle(&header, bundle_fd) ||
list_bundle_refs(&header, argc, argv);
} else
usage(bundle_usage);
}

2
builtin-check-attr.c
View File

@@ -56,7 +56,7 @@ int cmd_check_attr(int argc, const char **argv, const char *prefix)
else if (ATTR_UNSET(value))
value = "unspecified";
write_name_quoted("", 0, argv[i], 1, stdout);
quote_c_style(argv[i], NULL, stdout, 0);
printf(": %s: %s\n", argv[j+1], value);
}
}

37
builtin-checkout-index.c
View File

@@ -38,7 +38,6 @@
*/
#include "builtin.h"
#include "cache.h"
#include "strbuf.h"
#include "quote.h"
#include "cache-tree.h"
@@ -67,9 +66,7 @@ static void write_tempfile_record(const char *name, int prefix_length)
fputs(topath[checkout_stage], stdout);
putchar('\t');
write_name_quoted("", 0, name + prefix_length,
line_termination, stdout);
putchar(line_termination);
write_name_quoted(name + prefix_length, stdout, line_termination);
for (i = 0; i < 4; i++) {
topath[i][0] = 0;
@@ -271,28 +268,28 @@ int cmd_checkout_index(int argc, const char **argv, const char *prefix)
}
if (read_from_stdin) {
struct strbuf buf;
struct strbuf buf, nbuf;
if (all)
die("git-checkout-index: don't mix '--all' and '--stdin'");
strbuf_init(&buf);
while (1) {
char *path_name;
const char *p;
read_line(&buf, stdin, line_termination);
if (buf.eof)
break;
if (line_termination && buf.buf[0] == '"')
path_name = unquote_c_style(buf.buf, NULL);
else
path_name = buf.buf;
p = prefix_path(prefix, prefix_length, path_name);
strbuf_init(&buf, 0);
strbuf_init(&nbuf, 0);
while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
const char *p;
if (line_termination && buf.buf[0] == '"') {
strbuf_reset(&nbuf);
if (unquote_c_style(&nbuf, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &nbuf);
}
p = prefix_path(prefix, prefix_length, buf.buf);
checkout_file(p, prefix_length);
if (p < path_name || p > path_name + strlen(path_name))
if (p < buf.buf || p > buf.buf + buf.len)
free((char *)p);
if (path_name != buf.buf)
free(path_name);
}
strbuf_release(&nbuf);
strbuf_release(&buf);
}
if (all)

58
builtin-commit-tree.c
View File

@@ -14,36 +14,6 @@
/*
* FIXME! Share the code with "write-tree.c"
*/
static void init_buffer(char **bufp, unsigned int *sizep)
{
*bufp = xmalloc(BLOCKING);
*sizep = 0;
}
static void add_buffer(char **bufp, unsigned int *sizep, const char *fmt, ...)
{
char one_line[2048];
va_list args;
int len;
unsigned long alloc, size, newsize;
char *buf;
va_start(args, fmt);
len = vsnprintf(one_line, sizeof(one_line), fmt, args);
va_end(args);
size = *sizep;
newsize = size + len + 1;
alloc = (size + 32767) & ~32767;
buf = *bufp;
if (newsize > alloc) {
alloc = (newsize + 32767) & ~32767;
buf = xrealloc(buf, alloc);
*bufp = buf;
}
*sizep = newsize - 1;
memcpy(buf + size, one_line, len);
}
static void check_valid(unsigned char *sha1, enum object_type expect)
{
enum object_type type = sha1_object_info(sha1, NULL);
@@ -87,9 +57,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
int parents = 0;
unsigned char tree_sha1[20];
unsigned char commit_sha1[20];
char comment[1000];
char *buffer;
unsigned int size;
struct strbuf buffer;
int encoding_is_utf8;
git_config(git_default_config);
@@ -118,8 +86,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
/* Not having i18n.commitencoding is the same as having utf-8 */
encoding_is_utf8 = is_encoding_utf8(git_commit_encoding);
init_buffer(&buffer, &size);
add_buffer(&buffer, &size, "tree %s\n", sha1_to_hex(tree_sha1));
strbuf_init(&buffer, 8192); /* should avoid reallocs for the headers */
strbuf_addf(&buffer, "tree %s\n", sha1_to_hex(tree_sha1));
/*
* NOTE! This ordering means that the same exact tree merged with a
@@ -127,26 +95,24 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
* if everything else stays the same.
*/
for (i = 0; i < parents; i++)
add_buffer(&buffer, &size, "parent %s\n", sha1_to_hex(parent_sha1[i]));
strbuf_addf(&buffer, "parent %s\n", sha1_to_hex(parent_sha1[i]));
/* Person/date information */
add_buffer(&buffer, &size, "author %s\n", git_author_info(1));
add_buffer(&buffer, &size, "committer %s\n", git_committer_info(1));
strbuf_addf(&buffer, "author %s\n", git_author_info(1));
strbuf_addf(&buffer, "committer %s\n", git_committer_info(1));
if (!encoding_is_utf8)
add_buffer(&buffer, &size,
"encoding %s\n", git_commit_encoding);
add_buffer(&buffer, &size, "\n");
strbuf_addf(&buffer, "encoding %s\n", git_commit_encoding);
strbuf_addch(&buffer, '\n');
/* And add the comment */
while (fgets(comment, sizeof(comment), stdin) != NULL)
add_buffer(&buffer, &size, "%s", comment);
if (strbuf_read(&buffer, 0, 0) < 0)
die("git-commit-tree: read returned %s", strerror(errno));
/* And check the encoding */
buffer[size] = '\0';
if (encoding_is_utf8 && !is_utf8(buffer))
if (encoding_is_utf8 && !is_utf8(buffer.buf))
fprintf(stderr, commit_utf8_warn);
if (!write_sha1_file(buffer, size, commit_type, commit_sha1)) {
if (!write_sha1_file(buffer.buf, buffer.len, commit_type, commit_sha1)) {
printf("%s\n", sha1_to_hex(commit_sha1));
return 0;
}

19
builtin-config.c
View File

@@ -165,15 +165,21 @@ int cmd_config(int argc, const char **argv, const char *prefix)
{
int nongit = 0;
char* value;
setup_git_directory_gently(&nongit);
const char *file = setup_git_directory_gently(&nongit);
while (1 < argc) {
if (!strcmp(argv[1], "--int"))
type = T_INT;
else if (!strcmp(argv[1], "--bool"))
type = T_BOOL;
else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l"))
return git_config(show_all_config);
else if (!strcmp(argv[1], "--list") || !strcmp(argv[1], "-l")) {
if (argc != 2)
usage(git_config_set_usage);
if (git_config(show_all_config) < 0 && file && errno)
die("unable to read config file %s: %s", file,
strerror(errno));
return 0;
}
else if (!strcmp(argv[1], "--global")) {
char *home = getenv("HOME");
if (home) {
@@ -189,7 +195,12 @@ int cmd_config(int argc, const char **argv, const char *prefix)
else if (!strcmp(argv[1], "--file") || !strcmp(argv[1], "-f")) {
if (argc < 3)
usage(git_config_set_usage);
setenv(CONFIG_ENVIRONMENT, argv[2], 1);
if (!is_absolute_path(argv[2]) && file)
file = prefix_filename(file, strlen(file),
argv[2]);
else
file = argv[2];
setenv(CONFIG_ENVIRONMENT, file, 1);
argc--;
argv++;
}

55
builtin-fetch--tool.c
View File

@@ -3,26 +3,14 @@
#include "refs.h"
#include "commit.h"
#define CHUNK_SIZE 1024
static char *get_stdin(void)
{
size_t offset = 0;
char *data = xmalloc(CHUNK_SIZE);
while (1) {
ssize_t cnt = xread(0, data + offset, CHUNK_SIZE);
if (cnt < 0)
die("error reading standard input: %s",
strerror(errno));
if (cnt == 0) {
data[offset] = 0;
break;
}
offset += cnt;
data = xrealloc(data, offset + CHUNK_SIZE);
struct strbuf buf;
strbuf_init(&buf, 0);
if (strbuf_read(&buf, 0, 1024) < 0) {
die("error reading standard input: %s", strerror(errno));
}
return data;
return strbuf_detach(&buf, NULL);
}
static void show_new(enum object_type type, unsigned char *sha1_new)
@@ -31,24 +19,19 @@ static void show_new(enum object_type type, unsigned char *sha1_new)
find_unique_abbrev(sha1_new, DEFAULT_ABBREV));
}
static int update_ref(const char *action,
static int update_ref_env(const char *action,
const char *refname,
unsigned char *sha1,
unsigned char *oldval)
{
char msg[1024];
char *rla = getenv("GIT_REFLOG_ACTION");
static struct ref_lock *lock;
const char *rla = getenv("GIT_REFLOG_ACTION");
if (!rla)
rla = "(reflog update)";
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
lock = lock_any_ref_for_update(refname, oldval, 0);
if (!lock)
return 1;
if (write_ref_sha1(lock, sha1, msg) < 0)
return 1;
return 0;
if (snprintf(msg, sizeof(msg), "%s: %s", rla, action) >= sizeof(msg))
warning("reflog message too long: %.*s...", 50, msg);
return update_ref(msg, refname, sha1, oldval, 0, QUIET_ON_ERR);
}
static int update_local_ref(const char *name,
@@ -78,7 +61,7 @@ static int update_local_ref(const char *name,
}
if (get_sha1(name, sha1_old)) {
char *msg;
const char *msg;
just_store:
/* new ref */
if (!strncmp(name, "refs/tags/", 10))
@@ -88,7 +71,7 @@ static int update_local_ref(const char *name,
fprintf(stderr, "* %s: storing %s\n",
name, note);
show_new(type, sha1_new);
return update_ref(msg, name, sha1_new, NULL);
return update_ref_env(msg, name, sha1_new, NULL);
}
if (!hashcmp(sha1_old, sha1_new)) {
@@ -102,7 +85,7 @@ static int update_local_ref(const char *name,
if (!strncmp(name, "refs/tags/", 10)) {
fprintf(stderr, "* %s: updating with %s\n", name, note);
show_new(type, sha1_new);
return update_ref("updating tag", name, sha1_new, NULL);
return update_ref_env("updating tag", name, sha1_new, NULL);
}
current = lookup_commit_reference(sha1_old);
@@ -117,7 +100,7 @@ static int update_local_ref(const char *name,
fprintf(stderr, "* %s: fast forward to %s\n",
name, note);
fprintf(stderr, " old..new: %s..%s\n", oldh, newh);
return update_ref("fast forward", name, sha1_new, sha1_old);
return update_ref_env("fast forward", name, sha1_new, sha1_old);
}
if (!force) {
fprintf(stderr,
@@ -131,7 +114,7 @@ static int update_local_ref(const char *name,
"* %s: forcing update to non-fast forward %s\n",
name, note);
fprintf(stderr, " old...new: %s...%s\n", oldh, newh);
return update_ref("forced-update", name, sha1_new, sha1_old);
return update_ref_env("forced-update", name, sha1_new, sha1_old);
}
static int append_fetch_head(FILE *fp,
@@ -148,7 +131,7 @@ static int append_fetch_head(FILE *fp,
if (get_sha1(head, sha1))
return error("Not a valid object name: %s", head);
commit = lookup_commit_reference(sha1);
commit = lookup_commit_reference_gently(sha1, 1);
if (!commit)
not_for_merge = 1;
@@ -239,19 +222,15 @@ static char *find_local_name(const char *remote_name, const char *refs,
}
if (!strncmp(remote_name, ref, len) && ref[len] == ':') {
const char *local_part = ref + len + 1;
char *ret;
int retlen;
if (!next)
retlen = strlen(local_part);
else
retlen = next - local_part;
ret = xmalloc(retlen + 1);
memcpy(ret, local_part, retlen);
ret[retlen] = 0;
*force_p = single_force;
*not_for_merge_p = not_for_merge;
return ret;
return xmemdupz(local_part, retlen);
}
ref = next;
}

252
fetch-pack.c → builtin-fetch-pack.c
View File

@@ -6,19 +6,18 @@
#include "exec_cmd.h"
#include "pack.h"
#include "sideband.h"
#include "fetch-pack.h"
#include "run-command.h"
static int keep_pack;
static int transfer_unpack_limit = -1;
static int fetch_unpack_limit = -1;
static int unpack_limit = 100;
static int quiet;
static int verbose;
static int fetch_all;
static int depth;
static int no_progress;
static struct fetch_pack_args args = {
/* .uploadpack = */ "git-upload-pack",
};
static const char fetch_pack_usage[] =
"git-fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--upload-pack=<git-upload-pack>] [--depth=<n>] [--no-progress] [-v] [<host>:]<directory> [<refs>...]";
static const char *uploadpack = "git-upload-pack";
#define COMPLETE (1U << 0)
#define COMMON (1U << 1)
@@ -180,7 +179,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
(use_sideband == 2 ? " side-band-64k" : ""),
(use_sideband == 1 ? " side-band" : ""),
(use_thin_pack ? " thin-pack" : ""),
(no_progress ? " no-progress" : ""),
(args.no_progress ? " no-progress" : ""),
" ofs-delta");
else
packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
@@ -188,13 +187,13 @@ static int find_common(int fd[2], unsigned char *result_sha1,
}
if (is_repository_shallow())
write_shallow_commits(fd[1], 1);
if (depth > 0)
packet_write(fd[1], "deepen %d", depth);
if (args.depth > 0)
packet_write(fd[1], "deepen %d", args.depth);
packet_flush(fd[1]);
if (!fetching)
return 1;
if (depth > 0) {
if (args.depth > 0) {
char line[1024];
unsigned char sha1[20];
int len;
@@ -225,7 +224,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
retval = -1;
while ((sha1 = get_rev())) {
packet_write(fd[1], "have %s\n", sha1_to_hex(sha1));
if (verbose)
if (args.verbose)
fprintf(stderr, "have %s\n", sha1_to_hex(sha1));
in_vain++;
if (!(31 & ++count)) {
@@ -243,7 +242,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
do {
ack = get_ack(fd[0], result_sha1);
if (verbose && ack)
if (args.verbose && ack)
fprintf(stderr, "got ack %d %s\n", ack,
sha1_to_hex(result_sha1));
if (ack == 1) {
@@ -262,7 +261,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
} while (ack);
flushes--;
if (got_continue && MAX_IN_VAIN < in_vain) {
if (verbose)
if (args.verbose)
fprintf(stderr, "giving up\n");
break; /* give up */
}
@@ -270,7 +269,7 @@ static int find_common(int fd[2], unsigned char *result_sha1,
}
done:
packet_write(fd[1], "done\n");
if (verbose)
if (args.verbose)
fprintf(stderr, "done\n");
if (retval != 0) {
multi_ack = 0;
@@ -279,7 +278,7 @@ done:
while (flushes || multi_ack) {
int ack = get_ack(fd[0], result_sha1);
if (ack) {
if (verbose)
if (args.verbose)
fprintf(stderr, "got ack (%d) %s\n", ack,
sha1_to_hex(result_sha1));
if (ack == 1)
@@ -317,7 +316,7 @@ static int mark_complete(const char *path, const unsigned char *sha1, int flag,
static void mark_recent_complete_commits(unsigned long cutoff)
{
while (complete && cutoff <= complete->item->date) {
if (verbose)
if (args.verbose)
fprintf(stderr, "Marking %s as complete\n",
sha1_to_hex(complete->item->object.sha1));
pop_most_recent_commit(&complete, COMPLETE);
@@ -332,7 +331,7 @@ static void filter_refs(struct ref **refs, int nr_match, char **match)
struct ref *ref, *next;
struct ref *fastarray[32];
if (nr_match && !fetch_all) {
if (nr_match && !args.fetch_all) {
if (ARRAY_SIZE(fastarray) < nr_match)
return_refs = xcalloc(nr_match, sizeof(struct ref *));
else {
@@ -348,8 +347,8 @@ static void filter_refs(struct ref **refs, int nr_match, char **match)
if (!memcmp(ref->name, "refs/", 5) &&
check_ref_format(ref->name + 5))
; /* trash */
else if (fetch_all &&
(!depth || prefixcmp(ref->name, "refs/tags/") )) {
else if (args.fetch_all &&
(!args.depth || prefixcmp(ref->name, "refs/tags/") )) {
*newtail = ref;
ref->next = NULL;
newtail = &ref->next;
@@ -365,7 +364,7 @@ static void filter_refs(struct ref **refs, int nr_match, char **match)
free(ref);
}
if (!fetch_all) {
if (!args.fetch_all) {
int i;
for (i = 0; i < nr_match; i++) {
ref = return_refs[i];
@@ -408,7 +407,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
}
}
if (!depth) {
if (!args.depth) {
for_each_ref(mark_complete, NULL);
if (cutoff)
mark_recent_complete_commits(cutoff);
@@ -442,7 +441,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
o = lookup_object(remote);
if (!o || !(o->flags & COMPLETE)) {
retval = 0;
if (!verbose)
if (!args.verbose)
continue;
fprintf(stderr,
"want %s (%s)\n", sha1_to_hex(remote),
@@ -451,7 +450,7 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
}
hashcpy(ref->new_sha1, local);
if (!verbose)
if (!args.verbose)
continue;
fprintf(stderr,
"already have %s (%s)\n", sha1_to_hex(remote),
@@ -460,55 +459,52 @@ static int everything_local(struct ref **refs, int nr_match, char **match)
return retval;
}
static pid_t setup_sideband(int fd[2], int xd[2])
static int sideband_demux(int fd, void *data)
{
pid_t side_pid;
int *xd = data;
close(xd[1]);
return recv_sideband("fetch-pack", xd[0], fd, 2);
}
static void setup_sideband(int fd[2], int xd[2], struct async *demux)
{
if (!use_sideband) {
fd[0] = xd[0];
fd[1] = xd[1];
return 0;
return;
}
/* xd[] is talking with upload-pack; subprocess reads from
* xd[0], spits out band#2 to stderr, and feeds us band#1
* through our fd[0].
* through demux->out.
*/
if (pipe(fd) < 0)
die("fetch-pack: unable to set up pipe");
side_pid = fork();
if (side_pid < 0)
demux->proc = sideband_demux;
demux->data = xd;
if (start_async(demux))
die("fetch-pack: unable to fork off sideband demultiplexer");
if (!side_pid) {
/* subprocess */
close(fd[0]);
if (xd[0] != xd[1])
close(xd[1]);
if (recv_sideband("fetch-pack", xd[0], fd[1], 2))
exit(1);
exit(0);
}
close(xd[0]);
close(fd[1]);
fd[0] = demux->out;
fd[1] = xd[1];
return side_pid;
}
static int get_pack(int xd[2])
static int get_pack(int xd[2], char **pack_lockfile)
{
int status;
pid_t pid, side_pid;
struct async demux;
int fd[2];
const char *argv[20];
char keep_arg[256];
char hdr_arg[256];
const char **av;
int do_keep = keep_pack;
int do_keep = args.keep_pack;
struct child_process cmd;
side_pid = setup_sideband(fd, xd);
setup_sideband(fd, xd, &demux);
memset(&cmd, 0, sizeof(cmd));
cmd.argv = argv;
av = argv;
*hdr_arg = 0;
if (unpack_limit) {
if (!args.keep_pack && unpack_limit) {
struct pack_header header;
if (read_pack_header(fd[0], &header))
@@ -522,13 +518,15 @@ static int get_pack(int xd[2])
}
if (do_keep) {
if (pack_lockfile)
cmd.out = -1;
*av++ = "index-pack";
*av++ = "--stdin";
if (!quiet && !no_progress)
if (!args.quiet && !args.no_progress)
*av++ = "-v";
if (use_thin_pack)
if (args.use_thin_pack)
*av++ = "--fix-thin";
if (keep_pack > 1 || unpack_limit) {
if (args.lock_pack || unpack_limit) {
int s = sprintf(keep_arg,
"--keep=fetch-pack %d on ", getpid());
if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
@@ -538,35 +536,32 @@ static int get_pack(int xd[2])
}
else {
*av++ = "unpack-objects";
if (quiet)
if (args.quiet)
*av++ = "-q";
}
if (*hdr_arg)
*av++ = hdr_arg;
*av++ = NULL;
pid = spawnv_git_cmd(argv, fd, NULL);
if (pid < 0)
cmd.in = fd[0];
cmd.git_cmd = 1;
if (start_command(&cmd))
die("fetch-pack: unable to fork off %s", argv[0]);
close(fd[1]);
while (waitpid(pid, &status, 0) < 0) {
if (errno != EINTR)
die("waiting for %s: %s", argv[0], strerror(errno));
}
if (WIFEXITED(status)) {
int code = WEXITSTATUS(status);
if (code)
die("%s died with error code %d", argv[0], code);
return 0;
}
if (WIFSIGNALED(status)) {
int sig = WTERMSIG(status);
die("%s died of signal %d", argv[0], sig);
}
die("%s died of unnatural causes %d", argv[0], status);
if (do_keep && pack_lockfile)
*pack_lockfile = index_pack_lockfile(cmd.out);
if (finish_command(&cmd))
die("%s failed", argv[0]);
if (use_sideband && finish_async(&demux))
die("error in sideband demultiplexer");
return 0;
}
static int fetch_pack(int fd[2], int nr_match, char **match)
static struct ref *do_fetch_pack(int fd[2],
int nr_match,
char **match,
char **pack_lockfile)
{
struct ref *ref;
unsigned char sha1[20];
@@ -575,18 +570,18 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
if (is_repository_shallow() && !server_supports("shallow"))
die("Server does not support shallow clients");
if (server_supports("multi_ack")) {
if (verbose)
if (args.verbose)
fprintf(stderr, "Server supports multi_ack\n");
multi_ack = 1;
}
#ifndef __MINGW32__
if (server_supports("side-band-64k")) {
if (verbose)
if (args.verbose)
fprintf(stderr, "Server supports side-band-64k\n");
use_sideband = 2;
}
else if (server_supports("side-band")) {
if (verbose)
if (args.verbose)
fprintf(stderr, "Server supports side-band\n");
use_sideband = 1;
}
@@ -600,22 +595,17 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
goto all_done;
}
if (find_common(fd, sha1, ref) < 0)
if (keep_pack != 1)
if (!args.keep_pack)
/* When cloning, it is not unusual to have
* no common commit.
*/
fprintf(stderr, "warning: no common commits\n");
if (get_pack(fd))
if (get_pack(fd, pack_lockfile))
die("git-fetch-pack: fetch failed.");
all_done:
while (ref) {
printf("%s %s\n",
sha1_to_hex(ref->old_sha1), ref->name);
ref = ref->next;
}
return 0;
return ref;
}
static int remove_duplicates(int nr_heads, char **heads)
@@ -637,7 +627,6 @@ static int remove_duplicates(int nr_heads, char **heads)
heads[dst] = heads[src];
dst++;
}
heads[dst] = 0;
return dst;
}
@@ -658,85 +647,117 @@ static int fetch_pack_config(const char *var, const char *value)
static struct lock_file lock;
int main(int argc, char **argv)
static void fetch_pack_setup(void)
{
int i, ret, nr_heads;
char *dest = NULL, **heads;
int fd[2];
pid_t pid;
struct stat st;
setup_git_directory();
static int did_setup;
if (did_setup)
return;
git_config(fetch_pack_config);
if (0 <= transfer_unpack_limit)
unpack_limit = transfer_unpack_limit;
else if (0 <= fetch_unpack_limit)
unpack_limit = fetch_unpack_limit;
did_setup = 1;
}
int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
{
int i, ret, nr_heads;
struct ref *ref;
char *dest = NULL, **heads;
nr_heads = 0;
heads = NULL;
for (i = 1; i < argc; i++) {
char *arg = argv[i];
const char *arg = argv[i];
if (*arg == '-') {
if (!prefixcmp(arg, "--upload-pack=")) {
uploadpack = arg + 14;
args.uploadpack = arg + 14;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
uploadpack = arg + 7;
args.uploadpack = arg + 7;
continue;
}
if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
quiet = 1;
args.quiet = 1;
continue;
}
if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
keep_pack++;
unpack_limit = 0;
args.lock_pack = args.keep_pack;
args.keep_pack = 1;
continue;
}
if (!strcmp("--thin", arg)) {
use_thin_pack = 1;
args.use_thin_pack = 1;
continue;
}
if (!strcmp("--all", arg)) {
fetch_all = 1;
args.fetch_all = 1;
continue;
}
if (!strcmp("-v", arg)) {
verbose = 1;
args.verbose = 1;
continue;
}
if (!prefixcmp(arg, "--depth=")) {
depth = strtol(arg + 8, NULL, 0);
if (stat(git_path("shallow"), &st))
st.st_mtime = 0;
args.depth = strtol(arg + 8, NULL, 0);
continue;
}
if (!strcmp("--no-progress", arg)) {
no_progress = 1;
args.no_progress = 1;
continue;
}
usage(fetch_pack_usage);
}
dest = arg;
heads = argv + i + 1;
dest = (char *)arg;
heads = (char **)(argv + i + 1);
nr_heads = argc - i - 1;
break;
}
if (!dest)
usage(fetch_pack_usage);
pid = git_connect(fd, dest, uploadpack, verbose ? CONNECT_VERBOSE : 0);
if (pid < 0)
return 1;
ref = fetch_pack(&args, dest, nr_heads, heads, NULL);
ret = !ref;
while (ref) {
printf("%s %s\n",
sha1_to_hex(ref->old_sha1), ref->name);
ref = ref->next;
}
return ret;
}
struct ref *fetch_pack(struct fetch_pack_args *my_args,
const char *dest,
int nr_heads,
char **heads,
char **pack_lockfile)
{
int i, ret;
int fd[2];
struct child_process *conn;
struct ref *ref;
struct stat st;
fetch_pack_setup();
memcpy(&args, my_args, sizeof(args));
if (args.depth > 0) {
if (stat(git_path("shallow"), &st))
st.st_mtime = 0;
}
conn = git_connect(fd, (char *)dest, args.uploadpack,
args.verbose ? CONNECT_VERBOSE : 0);
if (heads && nr_heads)
nr_heads = remove_duplicates(nr_heads, heads);
ret = fetch_pack(fd, nr_heads, heads);
ref = do_fetch_pack(fd, nr_heads, heads, pack_lockfile);
close(fd[0]);
close(fd[1]);
ret |= finish_connect(pid);
ret = finish_connect(conn);
if (!ret && nr_heads) {
/* If the heads to pull were given, we should have
@@ -751,7 +772,7 @@ int main(int argc, char **argv)
}
}
if (!ret && depth > 0) {
if (!ret && args.depth > 0) {
struct cache_time mtime;
char *shallow = git_path("shallow");
int fd;
@@ -780,5 +801,8 @@ int main(int argc, char **argv)
}
}
return !!ret;
if (ret)
ref = NULL;
return ref;
}

586
builtin-fetch.c Normal file
View File

@@ -0,0 +1,586 @@
/*
* "git fetch"
*/
#include "cache.h"
#include "refs.h"
#include "commit.h"
#include "builtin.h"
#include "path-list.h"
#include "remote.h"
#include "transport.h"
static const char fetch_usage[] = "git-fetch [-a | --append] [--upload-pack <upload-pack>] [-f | --force] [--no-tags] [-t | --tags] [-k | --keep] [-u | --update-head-ok] [--depth <depth>] [-v | --verbose] [<repository> <refspec>...]";
static int append, force, tags, no_tags, update_head_ok, verbose, quiet;
static char *default_rla = NULL;
static struct transport *transport;
static void unlock_pack(void)
{
if (transport)
transport_unlock_pack(transport);
}
static void unlock_pack_on_signal(int signo)
{
unlock_pack();
signal(SIGINT, SIG_DFL);
raise(signo);
}
static void add_merge_config(struct ref **head,
struct ref *remote_refs,
struct branch *branch,
struct ref ***tail)
{
int i;
for (i = 0; i < branch->merge_nr; i++) {
struct ref *rm, **old_tail = *tail;
struct refspec refspec;
for (rm = *head; rm; rm = rm->next) {
if (branch_merge_matches(branch, i, rm->name)) {
rm->merge = 1;
break;
}
}
if (rm)
continue;
/*
* Not fetched to a tracking branch? We need to fetch
* it anyway to allow this branch's "branch.$name.merge"
* to be honored by git-pull, but we do not have to
* fail if branch.$name.merge is misconfigured to point
* at a nonexisting branch. If we were indeed called by
* git-pull, it will notice the misconfiguration because
* there is no entry in the resulting FETCH_HEAD marked
* for merging.
*/
refspec.src = branch->merge[i]->src;
refspec.dst = NULL;
refspec.pattern = 0;
refspec.force = 0;
get_fetch_map(remote_refs, &refspec, tail, 1);
for (rm = *old_tail; rm; rm = rm->next)
rm->merge = 1;
}
}
static struct ref *get_ref_map(struct transport *transport,
struct refspec *refs, int ref_count, int tags,
int *autotags)
{
int i;
struct ref *rm;
struct ref *ref_map = NULL;
struct ref **tail = &ref_map;
struct ref *remote_refs = transport_get_remote_refs(transport);
if (ref_count || tags) {
for (i = 0; i < ref_count; i++) {
get_fetch_map(remote_refs, &refs[i], &tail, 0);
if (refs[i].dst && refs[i].dst[0])
*autotags = 1;
}
/* Merge everything on the command line, but not --tags */
for (rm = ref_map; rm; rm = rm->next)
rm->merge = 1;
if (tags) {
struct refspec refspec;
refspec.src = "refs/tags/";
refspec.dst = "refs/tags/";
refspec.pattern = 1;
refspec.force = 0;
get_fetch_map(remote_refs, &refspec, &tail, 0);
}
} else {
/* Use the defaults */
struct remote *remote = transport->remote;
struct branch *branch = branch_get(NULL);
int has_merge = branch_has_merge_config(branch);
if (remote && (remote->fetch_refspec_nr || has_merge)) {
for (i = 0; i < remote->fetch_refspec_nr; i++) {
get_fetch_map(remote_refs, &remote->fetch[i], &tail, 0);
if (remote->fetch[i].dst &&
remote->fetch[i].dst[0])
*autotags = 1;
if (!i && !has_merge && ref_map &&
!remote->fetch[0].pattern)
ref_map->merge = 1;
}
/*
* if the remote we're fetching from is the same
* as given in branch.<name>.remote, we add the
* ref given in branch.<name>.merge, too.
*/
if (has_merge &&
!strcmp(branch->remote_name, remote->name))
add_merge_config(&ref_map, remote_refs, branch, &tail);
} else {
ref_map = get_remote_ref(remote_refs, "HEAD");
if (!ref_map)
die("Couldn't find remote ref HEAD");
ref_map->merge = 1;
}
}
ref_remove_duplicates(ref_map);
return ref_map;
}
static void show_new(enum object_type type, unsigned char *sha1_new)
{
fprintf(stderr, " %s: %s\n", typename(type),
find_unique_abbrev(sha1_new, DEFAULT_ABBREV));
}
static int s_update_ref(const char *action,
struct ref *ref,
int check_old)
{
char msg[1024];
char *rla = getenv("GIT_REFLOG_ACTION");
static struct ref_lock *lock;
if (!rla)
rla = default_rla;
snprintf(msg, sizeof(msg), "%s: %s", rla, action);
lock = lock_any_ref_for_update(ref->name,
check_old ? ref->old_sha1 : NULL, 0);
if (!lock)
return 1;
if (write_ref_sha1(lock, ref->new_sha1, msg) < 0)
return 1;
return 0;
}
static int update_local_ref(struct ref *ref,
const char *note,
int verbose)
{
char oldh[41], newh[41];
struct commit *current = NULL, *updated;
enum object_type type;
struct branch *current_branch = branch_get(NULL);
type = sha1_object_info(ref->new_sha1, NULL);
if (type < 0)
die("object %s not found", sha1_to_hex(ref->new_sha1));
if (!*ref->name) {
/* Not storing */
if (verbose) {
fprintf(stderr, "* fetched %s\n", note);
show_new(type, ref->new_sha1);
}
return 0;
}
if (!hashcmp(ref->old_sha1, ref->new_sha1)) {
if (verbose) {
fprintf(stderr, "* %s: same as %s\n",
ref->name, note);
show_new(type, ref->new_sha1);
}
return 0;
}
if (current_branch &&
!strcmp(ref->name, current_branch->name) &&
!(update_head_ok || is_bare_repository()) &&
!is_null_sha1(ref->old_sha1)) {
/*
* If this is the head, and it's not okay to update
* the head, and the old value of the head isn't empty...
*/
fprintf(stderr,
" * %s: Cannot fetch into the current branch.\n",
ref->name);
return 1;
}
if (!is_null_sha1(ref->old_sha1) &&
!prefixcmp(ref->name, "refs/tags/")) {
fprintf(stderr, "* %s: updating with %s\n",
ref->name, note);
show_new(type, ref->new_sha1);
return s_update_ref("updating tag", ref, 0);
}
current = lookup_commit_reference_gently(ref->old_sha1, 1);
updated = lookup_commit_reference_gently(ref->new_sha1, 1);
if (!current || !updated) {
char *msg;
if (!strncmp(ref->name, "refs/tags/", 10))
msg = "storing tag";
else
msg = "storing head";
fprintf(stderr, "* %s: storing %s\n",
ref->name, note);
show_new(type, ref->new_sha1);
return s_update_ref(msg, ref, 0);
}
strcpy(oldh, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
strcpy(newh, find_unique_abbrev(ref->new_sha1, DEFAULT_ABBREV));
if (in_merge_bases(current, &updated, 1)) {
fprintf(stderr, "* %s: fast forward to %s\n",
ref->name, note);
fprintf(stderr, " old..new: %s..%s\n", oldh, newh);
return s_update_ref("fast forward", ref, 1);
}
if (!force && !ref->force) {
fprintf(stderr,
"* %s: not updating to non-fast forward %s\n",
ref->name, note);
fprintf(stderr,
" old...new: %s...%s\n", oldh, newh);
return 1;
}
fprintf(stderr,
"* %s: forcing update to non-fast forward %s\n",
ref->name, note);
fprintf(stderr, " old...new: %s...%s\n", oldh, newh);
return s_update_ref("forced-update", ref, 1);
}
static void store_updated_refs(const char *url, struct ref *ref_map)
{
FILE *fp;
struct commit *commit;
int url_len, i, note_len;
char note[1024];
const char *what, *kind;
struct ref *rm;
fp = fopen(git_path("FETCH_HEAD"), "a");
for (rm = ref_map; rm; rm = rm->next) {
struct ref *ref = NULL;
if (rm->peer_ref) {
ref = xcalloc(1, sizeof(*ref) + strlen(rm->peer_ref->name) + 1);
strcpy(ref->name, rm->peer_ref->name);
hashcpy(ref->old_sha1, rm->peer_ref->old_sha1);
hashcpy(ref->new_sha1, rm->old_sha1);
ref->force = rm->peer_ref->force;
}
commit = lookup_commit_reference_gently(rm->old_sha1, 1);
if (!commit)
rm->merge = 0;
if (!strcmp(rm->name, "HEAD")) {
kind = "";
what = "";
}
else if (!prefixcmp(rm->name, "refs/heads/")) {
kind = "branch";
what = rm->name + 11;
}
else if (!prefixcmp(rm->name, "refs/tags/")) {
kind = "tag";
what = rm->name + 10;
}
else if (!prefixcmp(rm->name, "refs/remotes/")) {
kind = "remote branch";
what = rm->name + 13;
}
else {
kind = "";
what = rm->name;
}
url_len = strlen(url);
for (i = url_len - 1; url[i] == '/' && 0 <= i; i--)
;
url_len = i + 1;
if (4 < i && !strncmp(".git", url + i - 3, 4))
url_len = i - 3;
note_len = 0;
if (*what) {
if (*kind)
note_len += sprintf(note + note_len, "%s ",
kind);
note_len += sprintf(note + note_len, "'%s' of ", what);
}
note_len += sprintf(note + note_len, "%.*s", url_len, url);
fprintf(fp, "%s\t%s\t%s\n",
sha1_to_hex(commit ? commit->object.sha1 :
rm->old_sha1),
rm->merge ? "" : "not-for-merge",
note);
if (ref)
update_local_ref(ref, note, verbose);
}
fclose(fp);
}
static int fetch_refs(struct transport *transport, struct ref *ref_map)
{
int ret = transport_fetch_refs(transport, ref_map);
if (!ret)
store_updated_refs(transport->url, ref_map);
transport_unlock_pack(transport);
return ret;
}
static int add_existing(const char *refname, const unsigned char *sha1,
int flag, void *cbdata)
{
struct path_list *list = (struct path_list *)cbdata;
path_list_insert(refname, list);
return 0;
}
static struct ref *find_non_local_tags(struct transport *transport,
struct ref *fetch_map)
{
static struct path_list existing_refs = { NULL, 0, 0, 0 };
struct path_list new_refs = { NULL, 0, 0, 1 };
char *ref_name;
int ref_name_len;
unsigned char *ref_sha1;
struct ref *tag_ref;
struct ref *rm = NULL;
struct ref *ref_map = NULL;
struct ref **tail = &ref_map;
struct ref *ref;
for_each_ref(add_existing, &existing_refs);
for (ref = transport_get_remote_refs(transport); ref; ref = ref->next) {
if (prefixcmp(ref->name, "refs/tags"))
continue;
ref_name = xstrdup(ref->name);
ref_name_len = strlen(ref_name);
ref_sha1 = ref->old_sha1;
if (!strcmp(ref_name + ref_name_len - 3, "^{}")) {
ref_name[ref_name_len - 3] = 0;
tag_ref = transport_get_remote_refs(transport);
while (tag_ref) {
if (!strcmp(tag_ref->name, ref_name)) {
ref_sha1 = tag_ref->old_sha1;
break;
}
tag_ref = tag_ref->next;
}
}
if (!path_list_has_path(&existing_refs, ref_name) &&
!path_list_has_path(&new_refs, ref_name) &&
lookup_object(ref->old_sha1)) {
fprintf(stderr, "Auto-following %s\n",
ref_name);
path_list_insert(ref_name, &new_refs);
rm = alloc_ref(strlen(ref_name) + 1);
strcpy(rm->name, ref_name);
rm->peer_ref = alloc_ref(strlen(ref_name) + 1);
strcpy(rm->peer_ref->name, ref_name);
hashcpy(rm->old_sha1, ref_sha1);
*tail = rm;
tail = &rm->next;
}
free(ref_name);
}
return ref_map;
}
static int do_fetch(struct transport *transport,
struct refspec *refs, int ref_count)
{
struct ref *ref_map, *fetch_map;
struct ref *rm;
int autotags = (transport->remote->fetch_tags == 1);
if (transport->remote->fetch_tags == 2 && !no_tags)
tags = 1;
if (transport->remote->fetch_tags == -1)
no_tags = 1;
if (!transport->get_refs_list || !transport->fetch)
die("Don't know how to fetch from %s", transport->url);
/* if not appending, truncate FETCH_HEAD */
if (!append)
fclose(fopen(git_path("FETCH_HEAD"), "w"));
ref_map = get_ref_map(transport, refs, ref_count, tags, &autotags);
for (rm = ref_map; rm; rm = rm->next) {
if (rm->peer_ref)
read_ref(rm->peer_ref->name, rm->peer_ref->old_sha1);
}
if (fetch_refs(transport, ref_map)) {
free_refs(ref_map);
return 1;
}
fetch_map = ref_map;
/* if neither --no-tags nor --tags was specified, do automated tag
* following ... */
if (!(tags || no_tags) && autotags) {
ref_map = find_non_local_tags(transport, fetch_map);
if (ref_map) {
transport_set_option(transport, TRANS_OPT_DEPTH, "0");
fetch_refs(transport, ref_map);
}
free_refs(ref_map);
}
free_refs(fetch_map);
return 0;
}
static void set_option(const char *name, const char *value)
{
int r = transport_set_option(transport, name, value);
if (r < 0)
die("Option \"%s\" value \"%s\" is not valid for %s\n",
name, value, transport->url);
if (r > 0)
warning("Option \"%s\" is ignored for %s\n",
name, transport->url);
}
int cmd_fetch(int argc, const char **argv, const char *prefix)
{
struct remote *remote;
int i, j, rla_offset;
static const char **refs = NULL;
int ref_nr = 0;
int cmd_len = 0;
const char *depth = NULL, *upload_pack = NULL;
int keep = 0;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
cmd_len += strlen(arg);
if (arg[0] != '-')
break;
if (!strcmp(arg, "--append") || !strcmp(arg, "-a")) {
append = 1;
continue;
}
if (!prefixcmp(arg, "--upload-pack=")) {
upload_pack = arg + 14;
continue;
}
if (!strcmp(arg, "--upload-pack")) {
i++;
if (i == argc)
usage(fetch_usage);
upload_pack = argv[i];
continue;
}
if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
force = 1;
continue;
}
if (!strcmp(arg, "--no-tags")) {
no_tags = 1;
continue;
}
if (!strcmp(arg, "--tags") || !strcmp(arg, "-t")) {
tags = 1;
continue;
}
if (!strcmp(arg, "--keep") || !strcmp(arg, "-k")) {
keep = 1;
continue;
}
if (!strcmp(arg, "--update-head-ok") || !strcmp(arg, "-u")) {
update_head_ok = 1;
continue;
}
if (!prefixcmp(arg, "--depth=")) {
depth = arg + 8;
continue;
}
if (!strcmp(arg, "--depth")) {
i++;
if (i == argc)
usage(fetch_usage);
depth = argv[i];
continue;
}
if (!strcmp(arg, "--quiet")) {
quiet = 1;
continue;
}
if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
verbose++;
continue;
}
usage(fetch_usage);
}
for (j = i; j < argc; j++)
cmd_len += strlen(argv[j]);
default_rla = xmalloc(cmd_len + 5 + argc + 1);
sprintf(default_rla, "fetch");
rla_offset = strlen(default_rla);
for (j = 1; j < argc; j++) {
sprintf(default_rla + rla_offset, " %s", argv[j]);
rla_offset += strlen(argv[j]) + 1;
}
if (i == argc)
remote = remote_get(NULL);
else
remote = remote_get(argv[i++]);
transport = transport_get(remote, remote->url[0]);
if (verbose >= 2)
transport->verbose = 1;
if (quiet)
transport->verbose = -1;
if (upload_pack)
set_option(TRANS_OPT_UPLOADPACK, upload_pack);
if (keep)
set_option(TRANS_OPT_KEEP, "yes");
if (depth)
set_option(TRANS_OPT_DEPTH, depth);
if (!transport->url)
die("Where do you want to fetch from today?");
if (i < argc) {
int j = 0;
refs = xcalloc(argc - i + 1, sizeof(const char *));
while (i < argc) {
if (!strcmp(argv[i], "tag")) {
char *ref;
i++;
ref = xmalloc(strlen(argv[i]) * 2 + 22);
strcpy(ref, "refs/tags/");
strcat(ref, argv[i]);
strcat(ref, ":refs/tags/");
strcat(ref, argv[i]);
refs[j++] = ref;
} else
refs[j++] = argv[i];
i++;
}
refs[j] = NULL;
ref_nr = j;
}
signal(SIGINT, unlock_pack_on_signal);
atexit(unlock_pack);
return do_fetch(transport, parse_ref_spec(ref_nr, refs), ref_nr);
}

17
builtin-fmt-merge-msg.c
View File

@@ -142,12 +142,10 @@ static int handle_line(char *line)
if (!strcmp(".", src) || !strcmp(src, origin)) {
int len = strlen(origin);
if (origin[0] == '\'' && origin[len - 1] == '\'') {
char *new_origin = xmalloc(len - 1);
memcpy(new_origin, origin + 1, len - 2);
new_origin[len - 2] = 0;
origin = new_origin;
} else
origin = xmemdupz(origin + 1, len - 2);
} else {
origin = xstrdup(origin);
}
} else {
char *new_origin = xmalloc(strlen(origin) + strlen(src) + 5);
sprintf(new_origin, "%s of %s", origin, src);
@@ -213,14 +211,11 @@ static void shortlog(const char *name, unsigned char *sha1,
bol += 2;
eol = strchr(bol, '\n');
if (eol) {
int len = eol - bol;
oneline = xmalloc(len + 1);
memcpy(oneline, bol, len);
oneline[len] = 0;
} else
oneline = xmemdupz(bol, eol - bol);
} else {
oneline = xstrdup(bol);
}
append_to_list(&subjects, oneline, NULL);
}

89
builtin-for-each-ref.c
View File

@@ -43,7 +43,7 @@ static struct {
{ "objectsize", FIELD_ULONG },
{ "objectname" },
{ "tree" },
{ "parent" }, /* NEEDSWORK: how to address 2nd and later parents? */
{ "parent" },
{ "numparent", FIELD_ULONG },
{ "object" },
{ "type" },
@@ -87,7 +87,6 @@ static int used_atom_cnt, sort_atom_limit, need_tagged;
static int parse_atom(const char *atom, const char *ep)
{
const char *sp;
char *n;
int i, at;
sp = atom;
@@ -106,7 +105,16 @@ static int parse_atom(const char *atom, const char *ep)
/* Is the atom a valid one? */
for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
int len = strlen(valid_atom[i].name);
if (len == ep - sp && !memcmp(valid_atom[i].name, sp, len))
/*
* If the atom name has a colon, strip it and everything after
* it off - it specifies the format for this entry, and
* shouldn't be used for checking against the valid_atom
* table.
*/
const char *formatp = strchr(sp, ':');
if (!formatp || ep < formatp)
formatp = ep;
if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len))
break;
}
@@ -120,10 +128,7 @@ static int parse_atom(const char *atom, const char *ep)
(sizeof *used_atom) * used_atom_cnt);
used_atom_type = xrealloc(used_atom_type,
(sizeof(*used_atom_type) * used_atom_cnt));
n = xmalloc(ep - atom + 1);
memcpy(n, atom, ep - atom);
n[ep-atom] = 0;
used_atom[at] = n;
used_atom[at] = xmemdupz(atom, ep - atom);
used_atom_type[at] = valid_atom[i].cmp_type;
return at;
}
@@ -262,24 +267,26 @@ static void grab_commit_values(struct atom_value *val, int deref, struct object
}
if (!strcmp(name, "numparent")) {
char *s = xmalloc(40);
v->ul = num_parents(commit);
sprintf(s, "%lu", v->ul);
v->s = s;
v->ul = num_parents(commit);
}
else if (!strcmp(name, "parent")) {
int num = num_parents(commit);
int i;
struct commit_list *parents;
char *s = xmalloc(42 * num);
char *s = xmalloc(41 * num + 1);
v->s = s;
for (i = 0, parents = commit->parents;
parents;
parents = parents->next, i = i + 42) {
parents = parents->next, i = i + 41) {
struct commit *parent = parents->item;
strcpy(s+i, sha1_to_hex(parent->object.sha1));
if (parents->next)
s[i+40] = ' ';
}
if (!i)
*s = '\0';
}
}
}
@@ -305,54 +312,50 @@ static const char *find_wholine(const char *who, int wholen, const char *buf, un
static const char *copy_line(const char *buf)
{
const char *eol = strchr(buf, '\n');
char *line;
int len;
if (!eol)
return "";
len = eol - buf;
line = xmalloc(len + 1);
memcpy(line, buf, len);
line[len] = 0;
return line;
return xmemdupz(buf, eol - buf);
}
static const char *copy_name(const char *buf)
{
const char *eol = strchr(buf, '\n');
const char *eoname = strstr(buf, " <");
char *line;
int len;
if (!(eoname && eol && eoname < eol))
return "";
len = eoname - buf;
line = xmalloc(len + 1);
memcpy(line, buf, len);
line[len] = 0;
return line;
const char *cp;
for (cp = buf; *cp && *cp != '\n'; cp++) {
if (!strncmp(cp, " <", 2))
return xmemdupz(buf, cp - buf);
}
return "";
}
static const char *copy_email(const char *buf)
{
const char *email = strchr(buf, '<');
const char *eoemail = strchr(email, '>');
char *line;
int len;
if (!email || !eoemail)
return "";
eoemail++;
len = eoemail - email;
line = xmalloc(len + 1);
memcpy(line, email, len);
line[len] = 0;
return line;
return xmemdupz(email, eoemail + 1 - email);
}
static void grab_date(const char *buf, struct atom_value *v)
static void grab_date(const char *buf, struct atom_value *v, const char *atomname)
{
const char *eoemail = strstr(buf, "> ");
char *zone;
unsigned long timestamp;
long tz;
enum date_mode date_mode = DATE_NORMAL;
const char *formatp;
/*
* We got here because atomname ends in "date" or "date<something>";
* it's not possible that <something> is not ":<format>" because
* parse_atom() wouldn't have allowed it, so we can assume that no
* ":" means no format is specified, and use the default.
*/
formatp = strchr(atomname, ':');
if (formatp != NULL) {
formatp++;
date_mode = parse_date_format(formatp);
}
if (!eoemail)
goto bad;
@@ -362,7 +365,7 @@ static void grab_date(const char *buf, struct atom_value *v)
tz = strtol(zone, NULL, 10);
if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
goto bad;
v->s = xstrdup(show_date(timestamp, tz, 0));
v->s = xstrdup(show_date(timestamp, tz, date_mode));
v->ul = timestamp;
return;
bad:
@@ -389,7 +392,7 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru
if (name[wholen] != 0 &&
strcmp(name + wholen, "name") &&
strcmp(name + wholen, "email") &&
strcmp(name + wholen, "date"))
prefixcmp(name + wholen, "date"))
continue;
if (!wholine)
wholine = find_wholine(who, wholen, buf, sz);
@@ -401,8 +404,8 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru
v->s = copy_name(wholine);
else if (!strcmp(name + wholen, "email"))
v->s = copy_email(wholine);
else if (!strcmp(name + wholen, "date"))
grab_date(wholine, v);
else if (!prefixcmp(name + wholen, "date"))
grab_date(wholine, v, name);
}
/* For a tag or a commit object, if "creator" or "creatordate" is
@@ -422,8 +425,8 @@ static void grab_person(const char *who, struct atom_value *val, int deref, stru
if (deref)
name++;
if (!strcmp(name, "creatordate"))
grab_date(wholine, v);
if (!prefixcmp(name, "creatordate"))
grab_date(wholine, v, name);
else if (!strcmp(name, "creator"))
v->s = copy_line(wholine);
}

141
builtin-gc.c
View File

@@ -20,11 +20,13 @@ static const char builtin_gc_usage[] = "git-gc [--prune] [--aggressive]";
static int pack_refs = 1;
static int aggressive_window = -1;
static int gc_auto_threshold = 6700;
static int gc_auto_pack_limit = 20;
#define MAX_ADD 10
static const char *argv_pack_refs[] = {"pack-refs", "--all", "--prune", NULL};
static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL};
static const char *argv_repack[MAX_ADD] = {"repack", "-a", "-d", "-l", NULL};
static const char *argv_repack[MAX_ADD] = {"repack", "-d", "-l", NULL};
static const char *argv_prune[] = {"prune", NULL};
static const char *argv_rerere[] = {"rerere", "gc", NULL};
@@ -41,6 +43,14 @@ static int gc_config(const char *var, const char *value)
aggressive_window = git_config_int(var, value);
return 0;
}
if (!strcmp(var, "gc.auto")) {
gc_auto_threshold = git_config_int(var, value);
return 0;
}
if (!strcmp(var, "gc.autopacklimit")) {
gc_auto_pack_limit = git_config_int(var, value);
return 0;
}
return git_default_config(var, value);
}
@@ -57,10 +67,107 @@ static void append_option(const char **cmd, const char *opt, int max_length)
cmd[i] = NULL;
}
static int too_many_loose_objects(void)
{
/*
* Quickly check if a "gc" is needed, by estimating how
* many loose objects there are. Because SHA-1 is evenly
* distributed, we can check only one and get a reasonable
* estimate.
*/
char path[PATH_MAX];
const char *objdir = get_object_directory();
DIR *dir;
struct dirent *ent;
int auto_threshold;
int num_loose = 0;
int needed = 0;
if (gc_auto_threshold <= 0)
return 0;
if (sizeof(path) <= snprintf(path, sizeof(path), "%s/17", objdir)) {
warning("insanely long object directory %.*s", 50, objdir);
return 0;
}
dir = opendir(path);
if (!dir)
return 0;
auto_threshold = (gc_auto_threshold + 255) / 256;
while ((ent = readdir(dir)) != NULL) {
if (strspn(ent->d_name, "0123456789abcdef") != 38 ||
ent->d_name[38] != '\0')
continue;
if (++num_loose > auto_threshold) {
needed = 1;
break;
}
}
closedir(dir);
return needed;
}
static int too_many_packs(void)
{
struct packed_git *p;
int cnt;
if (gc_auto_pack_limit <= 0)
return 0;
prepare_packed_git();
for (cnt = 0, p = packed_git; p; p = p->next) {
char path[PATH_MAX];
size_t len;
int keep;
if (!p->pack_local)
continue;
len = strlen(p->pack_name);
if (PATH_MAX <= len + 1)
continue; /* oops, give up */
memcpy(path, p->pack_name, len-5);
memcpy(path + len - 5, ".keep", 6);
keep = access(p->pack_name, F_OK) && (errno == ENOENT);
if (keep)
continue;
/*
* Perhaps check the size of the pack and count only
* very small ones here?
*/
cnt++;
}
return gc_auto_pack_limit <= cnt;
}
static int need_to_gc(void)
{
/*
* Setting gc.auto and gc.autopacklimit to 0 or negative can
* disable the automatic gc.
*/
if (gc_auto_threshold <= 0 && gc_auto_pack_limit <= 0)
return 0;
/*
* If there are too many loose objects, but not too many
* packs, we run "repack -d -l". If there are too many packs,
* we run "repack -A -d -l". Otherwise we tell the caller
* there is no need.
*/
if (too_many_packs())
append_option(argv_repack, "-A", MAX_ADD);
else if (!too_many_loose_objects())
return 0;
return 1;
}
int cmd_gc(int argc, const char **argv, const char *prefix)
{
int i;
int prune = 0;
int auto_gc = 0;
char buf[80];
git_config(gc_config);
@@ -82,12 +189,38 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
}
continue;
}
/* perhaps other parameters later... */
if (!strcmp(arg, "--auto")) {
auto_gc = 1;
continue;
}
break;
}
if (i != argc)
usage(builtin_gc_usage);
if (auto_gc) {
/*
* Auto-gc should be least intrusive as possible.
*/
prune = 0;
if (!need_to_gc())
return 0;
fprintf(stderr, "Packing your repository for optimum "
"performance. You may also\n"
"run \"git gc\" manually. See "
"\"git help gc\" for more information.\n");
} else {
/*
* Use safer (for shared repos) "-A" option to
* repack when not pruning. Auto-gc makes its
* own decision.
*/
if (prune)
append_option(argv_repack, "-a", MAX_ADD);
else
append_option(argv_repack, "-A", MAX_ADD);
}
if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD))
return error(FAILED_RUN, argv_pack_refs[0]);
@@ -103,5 +236,9 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
if (run_command_v_opt(argv_rerere, RUN_GIT_CMD))
return error(FAILED_RUN, argv_rerere[0]);
if (auto_gc && too_many_loose_objects())
warning("There are too many unreachable loose objects; "
"run 'git prune' to remove them.");
return 0;
}

90
builtin-grep.c
View File

@@ -187,6 +187,78 @@ static int exec_grep(int argc, const char **argv)
else die("maximum number of args exceeded"); \
} while (0)
/*
* If you send a singleton filename to grep, it does not give
* the name of the file. GNU grep has "-H" but we would want
* that behaviour in a portable way.
*
* So we keep two pathnames in argv buffer unsent to grep in
* the main loop if we need to do more than one grep.
*/
static int flush_grep(struct grep_opt *opt,
int argc, int arg0, const char **argv, int *kept)
{
int status;
int count = argc - arg0;
const char *kept_0 = NULL;
if (count <= 2) {
/*
* Because we keep at least 2 paths in the call from
* the main loop (i.e. kept != NULL), and MAXARGS is
* far greater than 2, this usually is a call to
* conclude the grep. However, the user could attempt
* to overflow the argv buffer by giving too many
* options to leave very small number of real
* arguments even for the call in the main loop.
*/
if (kept)
die("insanely many options to grep");
/*
* If we have two or more paths, we do not have to do
* anything special, but we need to push /dev/null to
* get "-H" behaviour of GNU grep portably but when we
* are not doing "-l" nor "-L" nor "-c".
*/
if (count == 1 &&
!opt->name_only &&
!opt->unmatch_name_only &&
!opt->count) {
argv[argc++] = "/dev/null";
argv[argc] = NULL;
}
}
else if (kept) {
/*
* Called because we found many paths and haven't finished
* iterating over the cache yet. We keep two paths
* for the concluding call. argv[argc-2] and argv[argc-1]
* has the last two paths, so save the first one away,
* replace it with NULL while sending the list to grep,
* and recover them after we are done.
*/
*kept = 2;
kept_0 = argv[argc-2];
argv[argc-2] = NULL;
argc -= 2;
}
status = exec_grep(argc, argv);
if (kept_0) {
/*
* Then recover them. Now the last arg is beyond the
* terminating NULL which is at argc, and the second
* from the last is what we saved away in kept_0
*/
argv[arg0++] = kept_0;
argv[arg0] = argv[argc+1];
}
return status;
}
static int external_grep(struct grep_opt *opt, const char **paths, int cached)
{
int i, nr, argc, hit, len, status;
@@ -253,22 +325,12 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
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];
char *name;
int kept;
if (!S_ISREG(ntohl(ce->ce_mode)))
continue;
if (!pathspec_matches(paths, ce->name))
@@ -283,10 +345,10 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
argv[argc++] = name;
if (argc < MAXARGS && !ce_stage(ce))
continue;
status = exec_grep(argc, argv);
status = flush_grep(opt, argc, nr, argv, &kept);
if (0 < status)
hit = 1;
argc = nr;
argc = nr + kept;
if (ce_stage(ce)) {
do {
i++;
@@ -296,7 +358,7 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
}
}
if (argc > nr) {
status = exec_grep(argc, argv);
status = flush_grep(opt, argc, nr, argv, NULL);
if (0 < status)
hit = 1;
}

77
builtin-http-fetch.c Normal file
View File

@@ -0,0 +1,77 @@
#include "cache.h"
#include "walker.h"
int cmd_http_fetch(int argc, const char **argv, const char *prefix)
{
struct walker *walker;
int commits_on_stdin = 0;
int commits;
const char **write_ref = NULL;
char **commit_id;
const char *url;
int arg = 1;
int rc = 0;
int get_tree = 0;
int get_history = 0;
int get_all = 0;
int get_verbosely = 0;
int get_recover = 0;
git_config(git_default_config);
while (arg < argc && argv[arg][0] == '-') {
if (argv[arg][1] == 't') {
get_tree = 1;
} else if (argv[arg][1] == 'c') {
get_history = 1;
} else if (argv[arg][1] == 'a') {
get_all = 1;
get_tree = 1;
get_history = 1;
} else if (argv[arg][1] == 'v') {
get_verbosely = 1;
} else if (argv[arg][1] == 'w') {
write_ref = &argv[arg + 1];
arg++;
} else if (!strcmp(argv[arg], "--recover")) {
get_recover = 1;
} else if (!strcmp(argv[arg], "--stdin")) {
commits_on_stdin = 1;
}
arg++;
}
if (argc < arg + 2 - commits_on_stdin) {
usage("git-http-fetch [-c] [-t] [-a] [-v] [--recover] [-w ref] [--stdin] commit-id url");
return 1;
}
if (commits_on_stdin) {
commits = walker_targets_stdin(&commit_id, &write_ref);
} else {
commit_id = (char **) &argv[arg++];
commits = 1;
}
url = argv[arg];
walker = get_http_walker(url);
walker->get_tree = get_tree;
walker->get_history = get_history;
walker->get_all = get_all;
walker->get_verbosely = get_verbosely;
walker->get_recover = get_recover;
rc = walker_fetch(walker, commits, commit_id, write_ref, url);
if (commits_on_stdin)
walker_targets_free(commits, commit_id, write_ref);
if (walker->corrupt_object_found) {
fprintf(stderr,
"Some loose object were found to be corrupt, but they might be just\n"
"a false '404 Not Found' error message sent with incorrect HTTP\n"
"status code. Suggest running git-fsck.\n");
}
walker_free(walker);
return rc;
}

2
builtin-init-db.c
View File

@@ -140,7 +140,7 @@ static void copy_templates(const char *git_dir, int len, const char *template_di
* interpreted relative to the exec_dir
*/
template_dir = DEFAULT_GIT_TEMPLATE_DIR;
if (template_dir[0] != '/' && template_dir[1] != ':') {
if (!is_absolute_path(template_dir)) {
const char *exec_path = git_exec_path();
template_dir = prefix_path(exec_path, strlen(exec_path),
template_dir);

41
builtin-log.c
View File

@@ -437,6 +437,28 @@ static void gen_message_id(char *dest, unsigned int length, char *base)
(int)(email_end - email_start - 1), email_start + 1);
}
static const char *clean_message_id(const char *msg_id)
{
char ch;
const char *a, *z, *m;
m = msg_id;
while ((ch = *m) && (isspace(ch) || (ch == '<')))
m++;
a = m;
z = NULL;
while ((ch = *m)) {
if (!isspace(ch) && (ch != '>'))
z = m;
m++;
}
if (!z)
die("insane in-reply-to: %s", msg_id);
if (++z == m)
return a;
return xmemdupz(a, z - a);
}
int cmd_format_patch(int argc, const char **argv, const char *prefix)
{
struct commit *commit;
@@ -513,9 +535,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
endpos = strchr(committer, '>');
if (!endpos)
die("bogos committer info %s\n", committer);
add_signoff = xmalloc(endpos - committer + 2);
memcpy(add_signoff, committer, endpos - committer + 1);
add_signoff[endpos - committer + 1] = 0;
add_signoff = xmemdupz(committer, endpos - committer + 1);
}
else if (!strcmp(argv[i], "--attach")) {
rev.mime_boundary = git_version_string;
@@ -625,7 +645,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
if (numbered)
rev.total = total + start_number - 1;
rev.add_signoff = add_signoff;
rev.ref_message_id = in_reply_to;
if (in_reply_to)
rev.ref_message_id = clean_message_id(in_reply_to);
while (0 <= --nr) {
int shown;
commit = list[nr];
@@ -763,13 +784,13 @@ int cmd_cherry(int argc, const char **argv, const char *prefix)
sign = '-';
if (verbose) {
char *buf = NULL;
unsigned long buflen = 0;
pretty_print_commit(CMIT_FMT_ONELINE, commit, ~0,
&buf, &buflen, 0, NULL, NULL, 0);
struct strbuf buf;
strbuf_init(&buf, 0);
pretty_print_commit(CMIT_FMT_ONELINE, commit,
&buf, 0, NULL, NULL, 0);
printf("%c %s %s\n", sign,
sha1_to_hex(commit->object.sha1), buf);
free(buf);
sha1_to_hex(commit->object.sha1), buf.buf);
strbuf_release(&buf);
}
else {
printf("%c %s\n", sign,

103
builtin-ls-files.c
View File

@@ -9,6 +9,7 @@
#include "quote.h"
#include "dir.h"
#include "builtin.h"
#include "tree.h"
static int abbrev;
static int show_deleted;
@@ -26,6 +27,7 @@ static int prefix_offset;
static const char **pathspec;
static int error_unmatch;
static char *ps_matched;
static const char *with_tree;
static const char *tag_cached = "";
static const char *tag_unmerged = "";
@@ -82,8 +84,7 @@ static void show_dir_entry(const char *tag, struct dir_entry *ent)
return;
fputs(tag, stdout);
write_name_quoted("", 0, ent->name + offset, line_terminator, stdout);
putchar(line_terminator);
write_name_quoted(ent->name + offset, stdout, line_terminator);
}
static void show_other_files(struct dir_struct *dir)
@@ -206,21 +207,15 @@ static void show_ce_entry(const char *tag, struct cache_entry *ce)
if (!show_stage) {
fputs(tag, stdout);
write_name_quoted("", 0, ce->name + offset,
line_terminator, stdout);
putchar(line_terminator);
}
else {
printf("%s%06lo %s %u\t",
} else {
printf("%s%06o %s %d\t",
tag,
ntohl(ce->ce_mode),
abbrev ? find_unique_abbrev(ce->sha1,abbrev)
: sha1_to_hex(ce->sha1),
ce_stage(ce));
write_name_quoted("", 0, ce->name + offset,
line_terminator, stdout);
putchar(line_terminator);
}
write_name_quoted(ce->name + offset, stdout, line_terminator);
}
static void show_files(struct dir_struct *dir, const char *prefix)
@@ -247,6 +242,8 @@ static void show_files(struct dir_struct *dir, const char *prefix)
continue;
if (show_unmerged && !ce_stage(ce))
continue;
if (ce->ce_flags & htons(CE_UPDATE))
continue;
show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
}
}
@@ -276,7 +273,8 @@ static void prune_cache(const char *prefix)
if (pos < 0)
pos = -pos-1;
active_cache += pos;
memmove(active_cache, active_cache + pos,
(active_nr - pos) * sizeof(struct cache_entry *));
active_nr -= pos;
first = 0;
last = active_nr;
@@ -295,7 +293,6 @@ static void prune_cache(const char *prefix)
static const char *verify_pathspec(const char *prefix)
{
const char **p, *n, *prev;
char *real_prefix;
unsigned long max;
prev = NULL;
@@ -322,14 +319,69 @@ static const char *verify_pathspec(const char *prefix)
if (prefix_offset > max || memcmp(prev, prefix, prefix_offset))
die("git-ls-files: cannot generate relative filenames containing '..'");
real_prefix = NULL;
prefix_len = max;
if (max) {
real_prefix = xmalloc(max + 1);
memcpy(real_prefix, prev, max);
real_prefix[max] = 0;
return max ? xmemdupz(prev, max) : NULL;
}
/*
* Read the tree specified with --with-tree option
* (typically, HEAD) into stage #1 and then
* squash them down to stage #0. This is used for
* --error-unmatch to list and check the path patterns
* that were given from the command line. We are not
* going to write this index out.
*/
static void overlay_tree(const char *tree_name, const char *prefix)
{
struct tree *tree;
unsigned char sha1[20];
const char **match;
struct cache_entry *last_stage0 = NULL;
int i;
if (get_sha1(tree_name, sha1))
die("tree-ish %s not found.", tree_name);
tree = parse_tree_indirect(sha1);
if (!tree)
die("bad tree-ish %s", tree_name);
/* Hoist the unmerged entries up to stage #3 to make room */
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!ce_stage(ce))
continue;
ce->ce_flags |= htons(CE_STAGEMASK);
}
if (prefix) {
static const char *(matchbuf[2]);
matchbuf[0] = prefix;
matchbuf [1] = NULL;
match = matchbuf;
} else
match = NULL;
if (read_tree(tree, 1, match))
die("unable to read tree entries %s", tree_name);
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
switch (ce_stage(ce)) {
case 0:
last_stage0 = ce;
/* fallthru */
default:
continue;
case 1:
/*
* If there is stage #0 entry for this, we do not
* need to show it. We use CE_UPDATE bit to mark
* such an entry.
*/
if (last_stage0 &&
!strcmp(last_stage0->name, ce->name))
ce->ce_flags |= htons(CE_UPDATE);
}
}
return real_prefix;
}
static const char ls_files_usage[] =
@@ -452,6 +504,10 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
error_unmatch = 1;
continue;
}
if (!prefixcmp(arg, "--with-tree=")) {
with_tree = arg + 12;
continue;
}
if (!prefixcmp(arg, "--abbrev=")) {
abbrev = strtoul(arg+9, NULL, 10);
if (abbrev && abbrev < MINIMUM_ABBREV)
@@ -503,6 +559,15 @@ int cmd_ls_files(int argc, const char **argv, const char *prefix)
read_cache();
if (prefix)
prune_cache(prefix);
if (with_tree) {
/*
* Basic sanity check; show-stages and show-unmerged
* would not make any sense with this option.
*/
if (show_stage || show_unmerged)
die("ls-files --with-tree is incompatible with -s or -u");
overlay_tree(with_tree, prefix);
}
show_files(&dir, prefix);
if (ps_matched) {

6
builtin-ls-tree.c
View File

@@ -112,10 +112,8 @@ static int show_tree(const unsigned char *sha1, const char *base, int baselen,
abbrev ? find_unique_abbrev(sha1, abbrev)
: sha1_to_hex(sha1));
}
write_name_quoted(base + chomp_prefix, baselen - chomp_prefix,
pathname,
line_termination, stdout);
putchar(line_termination);
write_name_quotedpfx(base + chomp_prefix, baselen - chomp_prefix,
pathname, stdout, line_termination);
return retval;
}

2
builtin-mailinfo.c
View File

@@ -288,7 +288,7 @@ static void cleanup_space(char *buf)
}
static void decode_header(char *it, unsigned itsize);
static char *header[MAX_HDR_PARSED] = {
static const char *header[MAX_HDR_PARSED] = {
"From","Subject","Date",
};

12
builtin-mv.c
View File

@@ -22,10 +22,7 @@ static const char **copy_pathspec(const char *prefix, const char **pathspec,
for (i = 0; i < count; i++) {
int length = strlen(result[i]);
if (length > 0 && result[i][length - 1] == '/') {
char *without_slash = xmalloc(length);
memcpy(without_slash, result[i], length - 1);
without_slash[length - 1] = '\0';
result[i] = without_slash;
result[i] = xmemdupz(result[i], length - 1);
}
if (base_name) {
const char *last_slash = strrchr(result[i], '/');
@@ -276,11 +273,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
add_file_to_cache(path, verbose);
}
for (i = 0; i < deleted.nr; i++) {
const char *path = deleted.items[i].path;
remove_file_from_cache(path);
cache_tree_invalidate_path(active_cache_tree, path);
}
for (i = 0; i < deleted.nr; i++)
remove_file_from_cache(deleted.items[i].path);
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||

405
builtin-pack-objects.c
View File

@@ -15,13 +15,17 @@
#include "list-objects.h"
#include "progress.h"
#ifdef THREADED_DELTA_SEARCH
#include <pthread.h>
#endif
static const char pack_usage[] = "\
git-pack-objects [{ -q | --progress | --all-progress }] \n\
[--max-pack-size=N] [--local] [--incremental] \n\
[--window=N] [--window-memory=N] [--depth=N] \n\
[--no-reuse-delta] [--no-reuse-object] [--delta-base-offset] \n\
[--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\
[--stdout | base-name] [<ref-list | <object-list]";
[--threads=N] [--non-empty] [--revs [--unpacked | --all]*] [--reflog] \n\
[--stdout | base-name] [--keep-unreachable] [<ref-list | <object-list]";
struct object_entry {
struct pack_idx_entry idx;
@@ -57,7 +61,7 @@ static struct object_entry **written_list;
static uint32_t nr_objects, nr_alloc, nr_result, nr_written;
static int non_empty;
static int no_reuse_delta, no_reuse_object;
static int no_reuse_delta, no_reuse_object, keep_unreachable;
static int local;
static int incremental;
static int allow_ofs_delta;
@@ -68,6 +72,7 @@ static int progress = 1;
static int window = 10;
static uint32_t pack_size_limit;
static int depth = 50;
static int delta_search_threads = 1;
static int pack_to_stdout;
static int num_preferred_base;
static struct progress progress_state;
@@ -78,7 +83,6 @@ static unsigned long delta_cache_size = 0;
static unsigned long max_delta_cache_size = 0;
static unsigned long cache_max_small_delta_size = 1000;
static unsigned long window_memory_usage = 0;
static unsigned long window_memory_limit = 0;
/*
@@ -1291,6 +1295,31 @@ static int delta_cacheable(unsigned long src_size, unsigned long trg_size,
return 0;
}
#ifdef THREADED_DELTA_SEARCH
static pthread_mutex_t read_mutex = PTHREAD_MUTEX_INITIALIZER;
#define read_lock() pthread_mutex_lock(&read_mutex)
#define read_unlock() pthread_mutex_unlock(&read_mutex)
static pthread_mutex_t cache_mutex = PTHREAD_MUTEX_INITIALIZER;
#define cache_lock() pthread_mutex_lock(&cache_mutex)
#define cache_unlock() pthread_mutex_unlock(&cache_mutex)
static pthread_mutex_t progress_mutex = PTHREAD_MUTEX_INITIALIZER;
#define progress_lock() pthread_mutex_lock(&progress_mutex)
#define progress_unlock() pthread_mutex_unlock(&progress_mutex)
#else
#define read_lock() (void)0
#define read_unlock() (void)0
#define cache_lock() (void)0
#define cache_unlock() (void)0
#define progress_lock() (void)0
#define progress_unlock() (void)0
#endif
/*
* We search for deltas _backwards_ in a list sorted by type and
* by size, so that we see progressively smaller and smaller files.
@@ -1300,7 +1329,7 @@ static int delta_cacheable(unsigned long src_size, unsigned long trg_size,
* one.
*/
static int try_delta(struct unpacked *trg, struct unpacked *src,
unsigned max_depth)
unsigned max_depth, unsigned long *mem_usage)
{
struct object_entry *trg_entry = trg->entry;
struct object_entry *src_entry = src->entry;
@@ -1313,12 +1342,6 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
if (trg_entry->type != src_entry->type)
return -1;
/* We do not compute delta to *create* objects we are not
* going to pack.
*/
if (trg_entry->preferred_base)
return -1;
/*
* We do not bother to try a delta that we discarded
* on an earlier try, but only when reusing delta data.
@@ -1355,24 +1378,28 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
/* Load data if not already done */
if (!trg->data) {
read_lock();
trg->data = read_sha1_file(trg_entry->idx.sha1, &type, &sz);
read_unlock();
if (!trg->data)
die("object %s cannot be read",
sha1_to_hex(trg_entry->idx.sha1));
if (sz != trg_size)
die("object %s inconsistent object length (%lu vs %lu)",
sha1_to_hex(trg_entry->idx.sha1), sz, trg_size);
window_memory_usage += sz;
*mem_usage += sz;
}
if (!src->data) {
read_lock();
src->data = read_sha1_file(src_entry->idx.sha1, &type, &sz);
read_unlock();
if (!src->data)
die("object %s cannot be read",
sha1_to_hex(src_entry->idx.sha1));
if (sz != src_size)
die("object %s inconsistent object length (%lu vs %lu)",
sha1_to_hex(src_entry->idx.sha1), sz, src_size);
window_memory_usage += sz;
*mem_usage += sz;
}
if (!src->index) {
src->index = create_delta_index(src->data, src_size);
@@ -1382,7 +1409,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
warning("suboptimal pack - out of memory");
return 0;
}
window_memory_usage += sizeof_delta_index(src->index);
*mem_usage += sizeof_delta_index(src->index);
}
delta_buf = create_delta(src->index, trg->data, trg_size, &delta_size, max_size);
@@ -1402,17 +1429,27 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
trg_entry->delta_size = delta_size;
trg->depth = src->depth + 1;
/*
* Handle memory allocation outside of the cache
* accounting lock. Compiler will optimize the strangeness
* away when THREADED_DELTA_SEARCH is not defined.
*/
if (trg_entry->delta_data)
free(trg_entry->delta_data);
cache_lock();
if (trg_entry->delta_data) {
delta_cache_size -= trg_entry->delta_size;
free(trg_entry->delta_data);
trg_entry->delta_data = NULL;
}
if (delta_cacheable(src_size, trg_size, delta_size)) {
trg_entry->delta_data = xrealloc(delta_buf, delta_size);
delta_cache_size += trg_entry->delta_size;
} else
cache_unlock();
trg_entry->delta_data = xrealloc(delta_buf, delta_size);
} else {
cache_unlock();
free(delta_buf);
}
return 1;
}
@@ -1429,68 +1466,60 @@ static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
return m;
}
static void free_unpacked(struct unpacked *n)
static unsigned long free_unpacked(struct unpacked *n)
{
window_memory_usage -= sizeof_delta_index(n->index);
unsigned long freed_mem = sizeof_delta_index(n->index);
free_delta_index(n->index);
n->index = NULL;
if (n->data) {
freed_mem += n->entry->size;
free(n->data);
n->data = NULL;
window_memory_usage -= n->entry->size;
}
n->entry = NULL;
n->depth = 0;
return freed_mem;
}
static void find_deltas(struct object_entry **list, int window, int depth)
static void find_deltas(struct object_entry **list, unsigned list_size,
int window, int depth, unsigned *processed)
{
uint32_t i = nr_objects, idx = 0, count = 0, processed = 0;
uint32_t i = list_size, idx = 0, count = 0;
unsigned int array_size = window * sizeof(struct unpacked);
struct unpacked *array;
int max_depth;
unsigned long mem_usage = 0;
if (!nr_objects)
return;
array = xmalloc(array_size);
memset(array, 0, array_size);
if (progress)
start_progress(&progress_state, "Deltifying %u objects...", "", nr_result);
do {
struct object_entry *entry = list[--i];
struct unpacked *n = array + idx;
int j;
int j, max_depth, best_base = -1;
if (!entry->preferred_base)
processed++;
if (progress)
display_progress(&progress_state, processed);
if (entry->delta)
/* This happens if we decided to reuse existing
* delta from a pack. "!no_reuse_delta &&" is implied.
*/
continue;
if (entry->size < 50)
continue;
if (entry->no_try_delta)
continue;
free_unpacked(n);
mem_usage -= free_unpacked(n);
n->entry = entry;
while (window_memory_limit &&
window_memory_usage > window_memory_limit &&
mem_usage > window_memory_limit &&
count > 1) {
uint32_t tail = (idx + window - count) % window;
free_unpacked(array + tail);
mem_usage -= free_unpacked(array + tail);
count--;
}
/* We do not compute delta to *create* objects we are not
* going to pack.
*/
if (entry->preferred_base)
goto next;
progress_lock();
(*processed)++;
if (progress)
display_progress(&progress_state, *processed);
progress_unlock();
/*
* If the current object is at pack edge, take the depth the
* objects that depend on the current object into account
@@ -1505,6 +1534,7 @@ static void find_deltas(struct object_entry **list, int window, int depth)
j = window;
while (--j > 0) {
int ret;
uint32_t other_idx = idx + j;
struct unpacked *m;
if (other_idx >= window)
@@ -1512,8 +1542,11 @@ static void find_deltas(struct object_entry **list, int window, int depth)
m = array + other_idx;
if (!m->entry)
break;
if (try_delta(n, m, max_depth) < 0)
ret = try_delta(n, m, max_depth, &mem_usage);
if (ret < 0)
break;
else if (ret > 0)
best_base = other_idx;
}
/* if we made n a delta, and if n is already at max
@@ -1523,6 +1556,23 @@ static void find_deltas(struct object_entry **list, int window, int depth)
if (entry->delta && depth <= n->depth)
continue;
/*
* Move the best delta base up in the window, after the
* currently deltified object, to keep it longer. It will
* be the first base object to be attempted next.
*/
if (entry->delta) {
struct unpacked swap = array[best_base];
int dist = (window + idx - best_base) % window;
int dst = best_base;
while (dist--) {
int src = (dst + 1) % window;
array[dst] = array[src];
dst = src;
}
array[dst] = swap;
}
next:
idx++;
if (count + 1 < window)
@@ -1531,9 +1581,6 @@ static void find_deltas(struct object_entry **list, int window, int depth)
idx = 0;
} while (i > 0);
if (progress)
stop_progress(&progress_state);
for (i = 0; i < window; ++i) {
free_delta_index(array[i].index);
free(array[i].data);
@@ -1541,21 +1588,145 @@ static void find_deltas(struct object_entry **list, int window, int depth)
free(array);
}
#ifdef THREADED_DELTA_SEARCH
struct thread_params {
pthread_t thread;
struct object_entry **list;
unsigned list_size;
int window;
int depth;
unsigned *processed;
};
static pthread_mutex_t data_request = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t data_ready = PTHREAD_MUTEX_INITIALIZER;
static pthread_mutex_t data_provider = PTHREAD_MUTEX_INITIALIZER;
static struct thread_params *data_requester;
static void *threaded_find_deltas(void *arg)
{
struct thread_params *me = arg;
for (;;) {
pthread_mutex_lock(&data_request);
data_requester = me;
pthread_mutex_unlock(&data_provider);
pthread_mutex_lock(&data_ready);
pthread_mutex_unlock(&data_request);
if (!me->list_size)
return NULL;
find_deltas(me->list, me->list_size,
me->window, me->depth, me->processed);
}
}
static void ll_find_deltas(struct object_entry **list, unsigned list_size,
int window, int depth, unsigned *processed)
{
struct thread_params *target, p[delta_search_threads];
int i, ret;
unsigned chunk_size;
if (delta_search_threads <= 1) {
find_deltas(list, list_size, window, depth, processed);
return;
}
pthread_mutex_lock(&data_provider);
pthread_mutex_lock(&data_ready);
for (i = 0; i < delta_search_threads; i++) {
p[i].window = window;
p[i].depth = depth;
p[i].processed = processed;
ret = pthread_create(&p[i].thread, NULL,
threaded_find_deltas, &p[i]);
if (ret)
die("unable to create thread: %s", strerror(ret));
}
/* this should be auto-tuned somehow */
chunk_size = window * 1000;
do {
unsigned sublist_size = chunk_size;
if (sublist_size > list_size)
sublist_size = list_size;
/* try to split chunks on "path" boundaries */
while (sublist_size < list_size && list[sublist_size]->hash &&
list[sublist_size]->hash == list[sublist_size-1]->hash)
sublist_size++;
pthread_mutex_lock(&data_provider);
target = data_requester;
target->list = list;
target->list_size = sublist_size;
pthread_mutex_unlock(&data_ready);
list += sublist_size;
list_size -= sublist_size;
if (!sublist_size) {
pthread_join(target->thread, NULL);
i--;
}
} while (i);
}
#else
#define ll_find_deltas find_deltas
#endif
static void prepare_pack(int window, int depth)
{
struct object_entry **delta_list;
uint32_t i;
uint32_t i, n, nr_deltas;
get_object_details();
if (!window || !depth)
if (!nr_objects || !window || !depth)
return;
delta_list = xmalloc(nr_objects * sizeof(*delta_list));
for (i = 0; i < nr_objects; i++)
delta_list[i] = objects + i;
qsort(delta_list, nr_objects, sizeof(*delta_list), type_size_sort);
find_deltas(delta_list, window+1, depth);
nr_deltas = n = 0;
for (i = 0; i < nr_objects; i++) {
struct object_entry *entry = objects + i;
if (entry->delta)
/* This happens if we decided to reuse existing
* delta from a pack. "!no_reuse_delta &&" is implied.
*/
continue;
if (entry->size < 50)
continue;
if (entry->no_try_delta)
continue;
if (!entry->preferred_base)
nr_deltas++;
delta_list[n++] = entry;
}
if (nr_deltas) {
unsigned nr_done = 0;
if (progress)
start_progress(&progress_state,
"Deltifying %u objects...", "",
nr_deltas);
qsort(delta_list, n, sizeof(*delta_list), type_size_sort);
ll_find_deltas(delta_list, n, window+1, depth, &nr_done);
if (progress)
stop_progress(&progress_state);
if (nr_done != nr_deltas)
die("inconsistency with delta count");
}
free(delta_list);
}
@@ -1591,6 +1762,17 @@ static int git_pack_config(const char *k, const char *v)
cache_max_small_delta_size = git_config_int(k, v);
return 0;
}
if (!strcmp(k, "pack.threads")) {
delta_search_threads = git_config_int(k, v);
if (delta_search_threads < 1)
die("invalid number of threads specified (%d)",
delta_search_threads);
#ifndef THREADED_DELTA_SEARCH
if (delta_search_threads > 1)
warning("no threads support, ignoring %s", k);
#endif
return 0;
}
return git_default_config(k, v);
}
@@ -1625,15 +1807,19 @@ static void read_object_list_from_stdin(void)
}
}
#define OBJECT_ADDED (1u<<20)
static void show_commit(struct commit *commit)
{
add_object_entry(commit->object.sha1, OBJ_COMMIT, NULL, 0);
commit->object.flags |= OBJECT_ADDED;
}
static void show_object(struct object_array_entry *p)
{
add_preferred_base_object(p->name);
add_object_entry(p->item->sha1, p->item->type, p->name, 0);
p->item->flags |= OBJECT_ADDED;
}
static void show_edge(struct commit *commit)
@@ -1641,6 +1827,86 @@ static void show_edge(struct commit *commit)
add_preferred_base(commit->object.sha1);
}
struct in_pack_object {
off_t offset;
struct object *object;
};
struct in_pack {
int alloc;
int nr;
struct in_pack_object *array;
};
static void mark_in_pack_object(struct object *object, struct packed_git *p, struct in_pack *in_pack)
{
in_pack->array[in_pack->nr].offset = find_pack_entry_one(object->sha1, p);
in_pack->array[in_pack->nr].object = object;
in_pack->nr++;
}
/*
* Compare the objects in the offset order, in order to emulate the
* "git-rev-list --objects" output that produced the pack originally.
*/
static int ofscmp(const void *a_, const void *b_)
{
struct in_pack_object *a = (struct in_pack_object *)a_;
struct in_pack_object *b = (struct in_pack_object *)b_;
if (a->offset < b->offset)
return -1;
else if (a->offset > b->offset)
return 1;
else
return hashcmp(a->object->sha1, b->object->sha1);
}
static void add_objects_in_unpacked_packs(struct rev_info *revs)
{
struct packed_git *p;
struct in_pack in_pack;
uint32_t i;
memset(&in_pack, 0, sizeof(in_pack));
for (p = packed_git; p; p = p->next) {
const unsigned char *sha1;
struct object *o;
for (i = 0; i < revs->num_ignore_packed; i++) {
if (matches_pack_name(p, revs->ignore_packed[i]))
break;
}
if (revs->num_ignore_packed <= i)
continue;
if (open_pack_index(p))
die("cannot open pack index");
ALLOC_GROW(in_pack.array,
in_pack.nr + p->num_objects,
in_pack.alloc);
for (i = 0; i < p->num_objects; i++) {
sha1 = nth_packed_object_sha1(p, i);
o = lookup_unknown_object(sha1);
if (!(o->flags & OBJECT_ADDED))
mark_in_pack_object(o, p, &in_pack);
o->flags |= OBJECT_ADDED;
}
}
if (in_pack.nr) {
qsort(in_pack.array, in_pack.nr, sizeof(in_pack.array[0]),
ofscmp);
for (i = 0; i < in_pack.nr; i++) {
struct object *o = in_pack.array[i].object;
add_object_entry(o->sha1, o->type, "", 0);
}
}
free(in_pack.array);
}
static void get_object_list(int ac, const char **av)
{
struct rev_info revs;
@@ -1672,6 +1938,9 @@ static void get_object_list(int ac, const char **av)
prepare_revision_walk(&revs);
mark_edges_uninteresting(revs.commits, &revs, show_edge);
traverse_commit_list(&revs, show_commit, show_object);
if (keep_unreachable)
add_objects_in_unpacked_packs(&revs);
}
static int adjust_perm(const char *path, mode_t mode)
@@ -1750,6 +2019,18 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
usage(pack_usage);
continue;
}
if (!prefixcmp(arg, "--threads=")) {
char *end;
delta_search_threads = strtoul(arg+10, &end, 0);
if (!arg[10] || *end || delta_search_threads < 1)
usage(pack_usage);
#ifndef THREADED_DELTA_SEARCH
if (delta_search_threads > 1)
warning("no threads support, "
"ignoring %s", arg);
#endif
continue;
}
if (!prefixcmp(arg, "--depth=")) {
char *end;
depth = strtoul(arg+8, &end, 0);
@@ -1789,6 +2070,10 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
use_internal_rev_list = 1;
continue;
}
if (!strcmp("--keep-unreachable", arg)) {
keep_unreachable = 1;
continue;
}
if (!strcmp("--unpacked", arg) ||
!prefixcmp(arg, "--unpacked=") ||
!strcmp("--reflog", arg) ||

6
builtin-prune-packed.c
View File

@@ -27,10 +27,8 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
memcpy(pathname + len, de->d_name, 38);
if (opts & DRY_RUN)
printf("rm -f %s\n", pathname);
else {
if (unlink(pathname) < 0)
error("unable to unlink %s", pathname);
}
else if (unlink(pathname) < 0)
error("unable to unlink %s", pathname);
}
pathname[len] = 0;
rmdir(pathname);

98
builtin-push.c
View File

@@ -6,10 +6,11 @@
#include "run-command.h"
#include "builtin.h"
#include "remote.h"
#include "transport.h"
static const char push_usage[] = "git-push [--all] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
static const char push_usage[] = "git-push [--all] [--dry-run] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
static int all, force, thin = 1, verbose;
static int thin, verbose;
static const char *receivepack;
static const char **refspec;
@@ -43,80 +44,40 @@ static void set_refspecs(const char **refs, int nr)
}
}
static int do_push(const char *repo)
static int do_push(const char *repo, int flags)
{
int i, errs;
int common_argc;
const char **argv;
int argc;
struct remote *remote = remote_get(repo);
if (!remote)
die("bad repository '%s'", repo);
if (remote->receivepack) {
char *rp = xmalloc(strlen(remote->receivepack) + 16);
sprintf(rp, "--receive-pack=%s", remote->receivepack);
receivepack = rp;
}
if (!refspec && !all && remote->push_refspec_nr) {
if (!refspec
&& !(flags & TRANSPORT_PUSH_ALL)
&& remote->push_refspec_nr) {
refspec = remote->push_refspec;
refspec_nr = remote->push_refspec_nr;
}
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 (receivepack)
argv[argc++] = receivepack;
common_argc = argc;
errs = 0;
for (i = 0; i < remote->uri_nr; i++) {
for (i = 0; i < remote->url_nr; i++) {
struct transport *transport =
transport_get(remote, remote->url[i]);
int err;
int dest_argc = common_argc;
int dest_refspec_nr = refspec_nr;
const char **dest_refspec = refspec;
const char *dest = remote->uri[i];
const char *sender = "send-pack";
if (!prefixcmp(dest, "http://") ||
!prefixcmp(dest, "https://"))
sender = "http-push";
else {
char *rem = xmalloc(strlen(remote->name) + 10);
sprintf(rem, "--remote=%s", remote->name);
argv[dest_argc++] = rem;
if (thin)
argv[dest_argc++] = "--thin";
}
argv[0] = sender;
argv[dest_argc++] = dest;
while (dest_refspec_nr--)
argv[dest_argc++] = *dest_refspec++;
argv[dest_argc] = NULL;
if (receivepack)
transport_set_option(transport,
TRANS_OPT_RECEIVEPACK, receivepack);
if (thin)
transport_set_option(transport, TRANS_OPT_THIN, "yes");
if (verbose)
fprintf(stderr, "Pushing to %s\n", dest);
err = run_command_v_opt(argv, RUN_GIT_CMD);
fprintf(stderr, "Pushing to %s\n", remote->url[i]);
err = transport_push(transport, refspec_nr, refspec, flags);
err |= transport_disconnect(transport);
if (!err)
continue;
error("failed to push to '%s'", remote->uri[i]);
switch (err) {
case -ERR_RUN_COMMAND_FORK:
error("unable to fork for %s", sender);
case -ERR_RUN_COMMAND_EXEC:
error("unable to exec %s", sender);
break;
case -ERR_RUN_COMMAND_WAITPID:
case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
error("%s died with strange error", sender);
}
error("failed to push to '%s'", remote->url[i]);
errs++;
}
return !!errs;
@@ -125,6 +86,7 @@ static int do_push(const char *repo)
int cmd_push(int argc, const char **argv, const char *prefix)
{
int i;
int flags = 0;
const char *repo = NULL; /* default repository */
for (i = 1; i < argc; i++) {
@@ -144,7 +106,11 @@ int cmd_push(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--all")) {
all = 1;
flags |= TRANSPORT_PUSH_ALL;
continue;
}
if (!strcmp(arg, "--dry-run")) {
flags |= TRANSPORT_PUSH_DRY_RUN;
continue;
}
if (!strcmp(arg, "--tags")) {
@@ -152,7 +118,7 @@ int cmd_push(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
force = 1;
flags |= TRANSPORT_PUSH_FORCE;
continue;
}
if (!strcmp(arg, "--thin")) {
@@ -164,18 +130,18 @@ int cmd_push(int argc, const char **argv, const char *prefix)
continue;
}
if (!prefixcmp(arg, "--receive-pack=")) {
receivepack = arg;
receivepack = arg + 15;
continue;
}
if (!prefixcmp(arg, "--exec=")) {
receivepack = arg;
receivepack = arg + 7;
continue;
}
usage(push_usage);
}
set_refspecs(argv + i, argc - i);
if (all && refspec)
if ((flags & TRANSPORT_PUSH_ALL) && refspec)
usage(push_usage);
return do_push(repo);
return do_push(repo, flags);
}

6
builtin-reflog.c
View File

@@ -269,12 +269,6 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
if (fclose(cb.newlog))
status |= error("%s: %s", strerror(errno),
newlog_path);
#ifdef __MINGW32__
/* rename fails if the destination exists */
if (unlink(log_file))
status |= error("cannot remove %s", log_file);
else
#endif
if (rename(newlog_path, log_file)) {
status |= error("cannot rename %s to %s",
newlog_path, log_file);

97
builtin-rerere.c
View File

@@ -66,40 +66,15 @@ static int write_rr(struct path_list *rr, int out_fd)
return commit_lock_file(&write_lock);
}
struct buffer {
char *ptr;
int nr, alloc;
};
static void append_line(struct buffer *buffer, const char *line)
{
int len = strlen(line);
if (buffer->nr + len > buffer->alloc) {
buffer->alloc = alloc_nr(buffer->nr + len);
buffer->ptr = xrealloc(buffer->ptr, buffer->alloc);
}
memcpy(buffer->ptr + buffer->nr, line, len);
buffer->nr += len;
}
static void clear_buffer(struct buffer *buffer)
{
free(buffer->ptr);
buffer->ptr = NULL;
buffer->nr = buffer->alloc = 0;
}
static int handle_file(const char *path,
unsigned char *sha1, const char *output)
{
SHA_CTX ctx;
char buf[1024];
int hunk = 0, hunk_no = 0;
struct buffer minus = { NULL, 0, 0 }, plus = { NULL, 0, 0 };
struct buffer *one = &minus, *two = &plus;
struct strbuf one, two;
FILE *f = fopen(path, "r");
FILE *out;
FILE *out = NULL;
if (!f)
return error("Could not open %s", path);
@@ -110,51 +85,50 @@ static int handle_file(const char *path,
fclose(f);
return error("Could not write %s", output);
}
} else
out = NULL;
}
if (sha1)
SHA1_Init(&ctx);
strbuf_init(&one, 0);
strbuf_init(&two, 0);
while (fgets(buf, sizeof(buf), f)) {
if (!prefixcmp(buf, "<<<<<<< "))
hunk = 1;
else if (!prefixcmp(buf, "======="))
hunk = 2;
else if (!prefixcmp(buf, ">>>>>>> ")) {
int one_is_longer = (one->nr > two->nr);
int common_len = one_is_longer ? two->nr : one->nr;
int cmp = memcmp(one->ptr, two->ptr, common_len);
int cmp = strbuf_cmp(&one, &two);
hunk_no++;
hunk = 0;
if ((cmp > 0) || ((cmp == 0) && one_is_longer)) {
struct buffer *swap = one;
one = two;
two = swap;
if (cmp > 0) {
strbuf_swap(&one, &two);
}
if (out) {
fputs("<<<<<<<\n", out);
fwrite(one->ptr, one->nr, 1, out);
fwrite(one.buf, one.len, 1, out);
fputs("=======\n", out);
fwrite(two->ptr, two->nr, 1, out);
fwrite(two.buf, two.len, 1, out);
fputs(">>>>>>>\n", out);
}
if (sha1) {
SHA1_Update(&ctx, one->ptr, one->nr);
SHA1_Update(&ctx, "\0", 1);
SHA1_Update(&ctx, two->ptr, two->nr);
SHA1_Update(&ctx, "\0", 1);
SHA1_Update(&ctx, one.buf ? one.buf : "",
one.len + 1);
SHA1_Update(&ctx, two.buf ? two.buf : "",
two.len + 1);
}
clear_buffer(one);
clear_buffer(two);
strbuf_reset(&one);
strbuf_reset(&two);
} else if (hunk == 1)
append_line(one, buf);
strbuf_addstr(&one, buf);
else if (hunk == 2)
append_line(two, buf);
strbuf_addstr(&two, buf);
else if (out)
fputs(buf, out);
}
strbuf_release(&one);
strbuf_release(&two);
fclose(f);
if (out)
@@ -415,18 +389,39 @@ static int is_rerere_enabled(void)
return 1;
}
int cmd_rerere(int argc, const char **argv, const char *prefix)
static int setup_rerere(struct path_list *merge_rr)
{
struct path_list merge_rr = { NULL, 0, 0, 1 };
int i, fd = -1;
int fd;
git_config(git_rerere_config);
if (!is_rerere_enabled())
return 0;
return -1;
merge_rr_path = xstrdup(git_path("rr-cache/MERGE_RR"));
fd = hold_lock_file_for_update(&write_lock, merge_rr_path, 1);
read_rr(&merge_rr);
read_rr(merge_rr);
return fd;
}
int rerere(void)
{
struct path_list merge_rr = { NULL, 0, 0, 1 };
int fd;
fd = setup_rerere(&merge_rr);
if (fd < 0)
return 0;
return do_plain_rerere(&merge_rr, fd);
}
int cmd_rerere(int argc, const char **argv, const char *prefix)
{
struct path_list merge_rr = { NULL, 0, 0, 1 };
int i, fd;
fd = setup_rerere(&merge_rr);
if (fd < 0)
return 0;
if (argc < 2)
return do_plain_rerere(&merge_rr, fd);

279
builtin-reset.c Normal file
View File

@@ -0,0 +1,279 @@
/*
* "git reset" builtin command
*
* Copyright (c) 2007 Carlos Rica
*
* Based on git-reset.sh, which is
*
* Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano
*/
#include "cache.h"
#include "tag.h"
#include "object.h"
#include "commit.h"
#include "run-command.h"
#include "refs.h"
#include "diff.h"
#include "diffcore.h"
#include "tree.h"
static const char builtin_reset_usage[] =
"git-reset [--mixed | --soft | --hard] [<commit-ish>] [ [--] <paths>...]";
static char *args_to_str(const char **argv)
{
char *buf = NULL;
unsigned long len, space = 0, nr = 0;
for (; *argv; argv++) {
len = strlen(*argv);
ALLOC_GROW(buf, nr + 1 + len, space);
if (nr)
buf[nr++] = ' ';
memcpy(buf + nr, *argv, len);
nr += len;
}
ALLOC_GROW(buf, nr + 1, space);
buf[nr] = '\0';
return buf;
}
static inline int is_merge(void)
{
return !access(git_path("MERGE_HEAD"), F_OK);
}
static int unmerged_files(void)
{
char b;
ssize_t len;
struct child_process cmd;
const char *argv_ls_files[] = {"ls-files", "--unmerged", NULL};
memset(&cmd, 0, sizeof(cmd));
cmd.argv = argv_ls_files;
cmd.git_cmd = 1;
cmd.out = -1;
if (start_command(&cmd))
die("Could not run sub-command: git ls-files");
len = xread(cmd.out, &b, 1);
if (len < 0)
die("Could not read output from git ls-files: %s",
strerror(errno));
finish_command(&cmd);
return len;
}
static int reset_index_file(const unsigned char *sha1, int is_hard_reset)
{
int i = 0;
const char *args[6];
args[i++] = "read-tree";
args[i++] = "-v";
args[i++] = "--reset";
if (is_hard_reset)
args[i++] = "-u";
args[i++] = sha1_to_hex(sha1);
args[i] = NULL;
return run_command_v_opt(args, RUN_GIT_CMD);
}
static void print_new_head_line(struct commit *commit)
{
const char *hex, *dots = "...", *body;
hex = find_unique_abbrev(commit->object.sha1, DEFAULT_ABBREV);
if (!hex) {
hex = sha1_to_hex(commit->object.sha1);
dots = "";
}
printf("HEAD is now at %s%s", hex, dots);
body = strstr(commit->buffer, "\n\n");
if (body) {
const char *eol;
size_t len;
body += 2;
eol = strchr(body, '\n');
len = eol ? eol - body : strlen(body);
printf(" %.*s\n", (int) len, body);
}
else
printf("\n");
}
static int update_index_refresh(void)
{
const char *argv_update_index[] = {"update-index", "--refresh", NULL};
return run_command_v_opt(argv_update_index, RUN_GIT_CMD);
}
static void update_index_from_diff(struct diff_queue_struct *q,
struct diff_options *opt, void *data)
{
int i;
/* do_diff_cache() mangled the index */
discard_cache();
read_cache();
for (i = 0; i < q->nr; i++) {
struct diff_filespec *one = q->queue[i]->one;
if (one->mode) {
struct cache_entry *ce;
ce = make_cache_entry(one->mode, one->sha1, one->path,
0, 0);
add_cache_entry(ce, ADD_CACHE_OK_TO_ADD |
ADD_CACHE_OK_TO_REPLACE);
} else
remove_file_from_cache(one->path);
}
}
static int read_from_tree(const char *prefix, const char **argv,
unsigned char *tree_sha1)
{
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd;
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
diff_tree_setup_paths(get_pathspec(prefix, (const char **)argv), &opt);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
index_fd = hold_locked_index(lock, 1);
read_cache();
if (do_diff_cache(tree_sha1, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
return write_cache(index_fd, active_cache, active_nr) ||
close(index_fd) ||
commit_locked_index(lock);
}
static void prepend_reflog_action(const char *action, char *buf, size_t size)
{
const char *sep = ": ";
const char *rla = getenv("GIT_REFLOG_ACTION");
if (!rla)
rla = sep = "";
if (snprintf(buf, size, "%s%s%s", rla, sep, action) >= size)
warning("Reflog action message too long: %.*s...", 50, buf);
}
enum reset_type { MIXED, SOFT, HARD, NONE };
static const char *reset_type_names[] = { "mixed", "soft", "hard", NULL };
int cmd_reset(int argc, const char **argv, const char *prefix)
{
int i = 1, reset_type = NONE, update_ref_status = 0;
const char *rev = "HEAD";
unsigned char sha1[20], *orig = NULL, sha1_orig[20],
*old_orig = NULL, sha1_old_orig[20];
struct commit *commit;
char *reflog_action, msg[1024];
git_config(git_default_config);
reflog_action = args_to_str(argv);
setenv("GIT_REFLOG_ACTION", reflog_action, 0);
if (i < argc) {
if (!strcmp(argv[i], "--mixed")) {
reset_type = MIXED;
i++;
}
else if (!strcmp(argv[i], "--soft")) {
reset_type = SOFT;
i++;
}
else if (!strcmp(argv[i], "--hard")) {
reset_type = HARD;
i++;
}
}
if (i < argc && argv[i][0] != '-')
rev = argv[i++];
if (get_sha1(rev, sha1))
die("Failed to resolve '%s' as a valid ref.", rev);
commit = lookup_commit_reference(sha1);
if (!commit)
die("Could not parse object '%s'.", rev);
hashcpy(sha1, commit->object.sha1);
if (i < argc && !strcmp(argv[i], "--"))
i++;
else if (i < argc && argv[i][0] == '-')
usage(builtin_reset_usage);
/* git reset tree [--] paths... can be used to
* load chosen paths from the tree into the index without
* affecting the working tree nor HEAD. */
if (i < argc) {
if (reset_type == MIXED)
warning("--mixed option is deprecated with paths.");
else if (reset_type != NONE)
die("Cannot do %s reset with paths.",
reset_type_names[reset_type]);
if (read_from_tree(prefix, argv + i, sha1))
return 1;
return update_index_refresh() ? 1 : 0;
}
if (reset_type == NONE)
reset_type = MIXED; /* by default */
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */
if (reset_type == SOFT) {
if (is_merge() || unmerged_files())
die("Cannot do a soft reset in the middle of a merge.");
}
else if (reset_index_file(sha1, (reset_type == HARD)))
die("Could not reset index file to revision '%s'.", rev);
/* Any resets update HEAD to the head being switched to,
* saving the previous head in ORIG_HEAD before. */
if (!get_sha1("ORIG_HEAD", sha1_old_orig))
old_orig = sha1_old_orig;
if (!get_sha1("HEAD", sha1_orig)) {
orig = sha1_orig;
prepend_reflog_action("updating ORIG_HEAD", msg, sizeof(msg));
update_ref(msg, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR);
}
else if (old_orig)
delete_ref("ORIG_HEAD", old_orig);
prepend_reflog_action("updating HEAD", msg, sizeof(msg));
update_ref_status = update_ref(msg, "HEAD", sha1, orig, 0, MSG_ON_ERR);
switch (reset_type) {
case HARD:
if (!update_ref_status)
print_new_head_line(commit);
break;
case SOFT: /* Nothing else to do. */
break;
case MIXED: /* Report what has not been updated. */
update_index_refresh();
break;
}
unlink(git_path("MERGE_HEAD"));
unlink(git_path("rr-cache/MERGE_RR"));
unlink(git_path("MERGE_MSG"));
unlink(git_path("SQUASH_MSG"));
free(reflog_action);
return update_ref_status;
}

233
builtin-rev-list.c
View File

@@ -9,6 +9,7 @@
#include "revision.h"
#include "list-objects.h"
#include "builtin.h"
#include "log-tree.h"
/* bits #0-15 in revision.h */
@@ -38,7 +39,8 @@ static const char rev_list_usage[] =
" --left-right\n"
" special purpose:\n"
" --bisect\n"
" --bisect-vars"
" --bisect-vars\n"
" --bisect-all"
;
static struct rev_info revs;
@@ -74,19 +76,20 @@ static void show_commit(struct commit *commit)
parents = parents->next;
}
}
show_decorations(commit);
if (revs.commit_format == CMIT_FMT_ONELINE)
putchar(' ');
else
putchar('\n');
if (revs.verbose_header) {
char *buf = NULL;
unsigned long buflen = 0;
pretty_print_commit(revs.commit_format, commit, ~0,
&buf, &buflen,
revs.abbrev, NULL, NULL, revs.date_mode);
printf("%s%c", buf, hdr_termination);
free(buf);
struct strbuf buf;
strbuf_init(&buf, 0);
pretty_print_commit(revs.commit_format, commit,
&buf, revs.abbrev, NULL, NULL, revs.date_mode);
if (buf.len)
printf("%s%c", buf.buf, hdr_termination);
strbuf_release(&buf);
}
maybe_flush_or_die(stdout, "stdout");
if (commit->parents) {
@@ -189,7 +192,7 @@ static int count_interesting_parents(struct commit *commit)
return count;
}
static inline int halfway(struct commit_list *p, int distance, int nr)
static inline int halfway(struct commit_list *p, int nr)
{
/*
* Don't short-cut something we are not going to return!
@@ -202,8 +205,7 @@ static inline int halfway(struct commit_list *p, int distance, int nr)
* 2 and 3 are halfway of 5.
* 3 is halfway of 6 but 2 and 4 are not.
*/
distance *= 2;
switch (distance - nr) {
switch (2 * weight(p) - nr) {
case -1: case 0: case 1:
return 1;
default:
@@ -255,6 +257,81 @@ static void show_list(const char *debug, int counted, int nr,
}
#endif /* DEBUG_BISECT */
static struct commit_list *best_bisection(struct commit_list *list, int nr)
{
struct commit_list *p, *best;
int best_distance = -1;
best = list;
for (p = list; p; p = p->next) {
int distance;
unsigned flags = p->item->object.flags;
if (revs.prune_fn && !(flags & TREECHANGE))
continue;
distance = weight(p);
if (nr - distance < distance)
distance = nr - distance;
if (distance > best_distance) {
best = p;
best_distance = distance;
}
}
return best;
}
struct commit_dist {
struct commit *commit;
int distance;
};
static int compare_commit_dist(const void *a_, const void *b_)
{
struct commit_dist *a, *b;
a = (struct commit_dist *)a_;
b = (struct commit_dist *)b_;
if (a->distance != b->distance)
return b->distance - a->distance; /* desc sort */
return hashcmp(a->commit->object.sha1, b->commit->object.sha1);
}
static struct commit_list *best_bisection_sorted(struct commit_list *list, int nr)
{
struct commit_list *p;
struct commit_dist *array = xcalloc(nr, sizeof(*array));
int cnt, i;
for (p = list, cnt = 0; p; p = p->next) {
int distance;
unsigned flags = p->item->object.flags;
if (revs.prune_fn && !(flags & TREECHANGE))
continue;
distance = weight(p);
if (nr - distance < distance)
distance = nr - distance;
array[cnt].commit = p->item;
array[cnt].distance = distance;
cnt++;
}
qsort(array, cnt, sizeof(*array), compare_commit_dist);
for (p = list, i = 0; i < cnt; i++) {
struct name_decoration *r = xmalloc(sizeof(*r) + 100);
struct object *obj = &(array[i].commit->object);
sprintf(r->name, "dist=%d", array[i].distance);
r->next = add_decoration(&name_decoration, obj, r);
p->item = array[i].commit;
p = p->next;
}
if (p)
p->next = NULL;
free(array);
return list;
}
/*
* zero or positive weight is the number of interesting commits it can
* reach, including itself. Especially, weight = 0 means it does not
@@ -268,39 +345,13 @@ static void show_list(const char *debug, int counted, int nr,
* unknown. After running count_distance() first, they will get zero
* or positive distance.
*/
static struct commit_list *find_bisection(struct commit_list *list,
int *reaches, int *all)
static struct commit_list *do_find_bisection(struct commit_list *list,
int nr, int *weights,
int find_all)
{
int n, nr, on_list, counted, distance;
struct commit_list *p, *best, *next, *last;
int *weights;
int n, counted;
struct commit_list *p;
show_list("bisection 2 entry", 0, 0, list);
/*
* Count the number of total and tree-changing items on the
* list, while reversing the list.
*/
for (nr = on_list = 0, last = NULL, p = list;
p;
p = next) {
unsigned flags = p->item->object.flags;
next = p->next;
if (flags & UNINTERESTING)
continue;
p->next = last;
last = p;
if (!revs.prune_fn || (flags & TREECHANGE))
nr++;
on_list++;
}
list = last;
show_list("bisection 2 sorted", 0, nr, list);
*all = nr;
weights = xcalloc(on_list, sizeof(*weights));
counted = 0;
for (n = 0, p = list; p; p = p->next) {
@@ -349,20 +400,14 @@ static struct commit_list *find_bisection(struct commit_list *list,
for (p = list; p; p = p->next) {
if (p->item->object.flags & UNINTERESTING)
continue;
n = weight(p);
if (n != -2)
if (weight(p) != -2)
continue;
distance = count_distance(p);
weight_set(p, count_distance(p));
clear_distance(list);
weight_set(p, distance);
/* Does it happen to be at exactly half-way? */
if (halfway(p, distance, nr)) {
p->next = NULL;
*reaches = distance;
free(weights);
if (!find_all && halfway(p, nr))
return p;
}
counted++;
}
@@ -399,37 +444,60 @@ static struct commit_list *find_bisection(struct commit_list *list,
weight_set(p, weight(q));
/* Does it happen to be at exactly half-way? */
distance = weight(p);
if (halfway(p, distance, nr)) {
p->next = NULL;
*reaches = distance;
free(weights);
if (!find_all && halfway(p, nr))
return p;
}
}
}
show_list("bisection 2 counted all", counted, nr, list);
/* Then find the best one */
counted = -1;
best = list;
for (p = list; p; p = p->next) {
if (!find_all)
return best_bisection(list, nr);
else
return best_bisection_sorted(list, nr);
}
static struct commit_list *find_bisection(struct commit_list *list,
int *reaches, int *all,
int find_all)
{
int nr, on_list;
struct commit_list *p, *best, *next, *last;
int *weights;
show_list("bisection 2 entry", 0, 0, list);
/*
* Count the number of total and tree-changing items on the
* list, while reversing the list.
*/
for (nr = on_list = 0, last = NULL, p = list;
p;
p = next) {
unsigned flags = p->item->object.flags;
if (revs.prune_fn && !(flags & TREECHANGE))
next = p->next;
if (flags & UNINTERESTING)
continue;
distance = weight(p);
if (nr - distance < distance)
distance = nr - distance;
if (distance > counted) {
best = p;
counted = distance;
*reaches = weight(p);
}
p->next = last;
last = p;
if (!revs.prune_fn || (flags & TREECHANGE))
nr++;
on_list++;
}
list = last;
show_list("bisection 2 sorted", 0, nr, list);
*all = nr;
weights = xcalloc(on_list, sizeof(*weights));
/* Do the real work of finding bisection commit. */
best = do_find_bisection(list, nr, weights, find_all);
if (best) {
if (!find_all)
best->next = NULL;
*reaches = weight(best);
}
if (best)
best->next = NULL;
free(weights);
return best;
}
@@ -457,6 +525,7 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
int i;
int read_from_stdin = 0;
int bisect_show_vars = 0;
int bisect_find_all = 0;
git_config(git_default_config);
init_revisions(&revs, prefix);
@@ -479,6 +548,11 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
bisect_list = 1;
continue;
}
if (!strcmp(arg, "--bisect-all")) {
bisect_list = 1;
bisect_find_all = 1;
continue;
}
if (!strcmp(arg, "--bisect-vars")) {
bisect_list = 1;
bisect_show_vars = 1;
@@ -525,9 +599,11 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
if (bisect_list) {
int reaches = reaches, all = all;
revs.commits = find_bisection(revs.commits, &reaches, &all);
revs.commits = find_bisection(revs.commits, &reaches, &all,
bisect_find_all);
if (bisect_show_vars) {
int cnt;
char hex[41];
if (!revs.commits)
return 1;
/*
@@ -539,15 +615,22 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
* A bisect set of size N has (N-1) commits further
* to test, as we already know one bad one.
*/
cnt = all-reaches;
cnt = all - reaches;
if (cnt < reaches)
cnt = reaches;
strcpy(hex, sha1_to_hex(revs.commits->item->object.sha1));
if (bisect_find_all) {
traverse_commit_list(&revs, show_commit, show_object);
printf("------\n");
}
printf("bisect_rev=%s\n"
"bisect_nr=%d\n"
"bisect_good=%d\n"
"bisect_bad=%d\n"
"bisect_all=%d\n",
sha1_to_hex(revs.commits->item->object.sha1),
hex,
cnt - 1,
all - reaches - 1,
reaches - 1,

6
builtin-revert.c
View File

@@ -168,9 +168,7 @@ static void set_author_ident_env(const char *message)
char *line, *pend, *email, *timestamp;
p += 7;
line = xmalloc(eol + 1 - p);
memcpy(line, p, eol - p);
line[eol - p] = '\0';
line = xmemdupz(p, eol - p);
email = strchr(line, '<');
if (!email)
die ("Could not extract author email from %s",
@@ -351,7 +349,7 @@ static int revert_or_cherry_pick(int argc, const char **argv)
die ("Error wrapping up %s", defmsg);
fprintf(stderr, "Automatic %s failed. "
"After resolving the conflicts,\n"
"mark the corrected paths with 'git-add <paths>'\n"
"mark the corrected paths with 'git add <paths>' "
"and commit the result.\n", me);
if (action == CHERRY_PICK) {
fprintf(stderr, "When commiting, use the option "

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