Commit Graph

803 Commits

Author SHA1 Message Date
Junio C Hamano
4392da4d5d Documentation: support manual section (5) - file formats.
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-19 20:47:04 -07:00
Junio C Hamano
6d4da3dea0 Makefile: add patch-ids.h back in.
I lost it by mistake while shuffling the gitattributes series which
originally was on top of the subproject topic onto the master branch.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-15 14:35:34 -07:00
Junio C Hamano
d0bfd026a8 Add basic infrastructure to assign attributes to paths
This adds the basic infrastructure to assign attributes to
paths, in a way similar to what the exclusion mechanism does
based on $GIT_DIR/info/exclude and .gitignore files.

An attribute is just a simple string that does not contain any
whitespace.  They can be specified in $GIT_DIR/info/attributes
file, and .gitattributes file in each directory.

Each line in these files defines a pattern matching rule.
Similar to the exclusion mechanism, a later match overrides an
earlier match in the same file, and entries from .gitattributes
file in the same directory takes precedence over the ones from
parent directories.  Lines in $GIT_DIR/info/attributes file are
used as the lowest precedence default rules.

A line is either a comment (an empty line, or a line that begins
with a '#'), or a rule, which is a whitespace separated list of
tokens.  The first token on the line is a shell glob pattern.
The rest are names of attributes, each of which can optionally
be prefixed with '!'.  Such a line means "if a path matches this
glob, this attribute is set (or unset -- if the attribute name
is prefixed with '!').  For glob matching, the same "if the
pattern does not have a slash in it, the basename of the path is
matched with fnmatch(3) against the pattern, otherwise, the path
is matched with the pattern with FNM_PATHNAME" rule as the
exclusion mechanism is used.

This does not define what an attribute means.  Tying an
attribute to various effects it has on git operation for paths
that have it will be specified separately.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-14 08:57:06 -07:00
Junio C Hamano
d016a896d4 Merge branch 'jc/cherry'
* jc/cherry:
  Documentation: --cherry-pick
  git-log --cherry-pick A...B
  Refactor patch-id filtering out of git-cherry and git-format-patch.
  Add %m to '--pretty=format:'
2007-04-12 21:04:27 -07:00
Shawn O. Pearce
9aef12673e Don't yap about merge-subtree during make
By default we are pretty quiet about the actual commands that
we are running.  So we should continue to be quiet about the new
merge-subtree hardlink to merge-recursive.  Technically this is not
a builtin, but it is close because subtree is actually builtin to
a non-builtin.  So lets just make things easy and call it a builtin.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-12 17:43:28 -07:00
Junio C Hamano
5d23e133d2 Refactor patch-id filtering out of git-cherry and git-format-patch.
This implements the patch-id computation and recording library,
patch-ids.c, and rewrites the get_patch_ids() function used in
cherry and format-patch to use it, so that they do not pollute
the object namespace.  Earlier code threw non-objects into the
in-core object database, and hoped for not getting bitten by
SHA-1 collisions.  While it may be practically Ok, it still was
an ugly hack.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-11 20:02:03 -07:00
Junio C Hamano
68faf68938 A new merge stragety 'subtree'.
This merge strategy largely piggy-backs on git-merge-recursive.
When merging trees A and B, if B corresponds to a subtree of A,
B is first adjusted to match the tree structure of A, instead of
reading the trees at the same level.  This adjustment is also
done to the common ancestor tree.

If you are pulling updates from git-gui repository into git.git
repository, the root level of the former corresponds to git-gui/
subdirectory of the latter.  The tree object of git-gui's toplevel
is wrapped in a fake tree object, whose sole entry has name 'git-gui'
and records object name of the true tree, before being used by
the 3-way merge code.

If you are merging the other way, only the git-gui/ subtree of
git.git is extracted and merged into git-gui's toplevel.

The detection of corresponding subtree is done by comparing the
pathnames and types in the toplevel of the tree.

Heuristics galore!  That's the git way ;-).

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-07 02:29:40 -07:00
Junio C Hamano
39415449ee Merge branch 'fp/make-j'
* fp/make-j:
  Makefile: Add '+' to QUIET_SUBDIR0 to fix parallel make.
2007-04-07 02:20:47 -07:00
Junio C Hamano
ced38ea252 Merge branch 'maint'
* maint:
  Documentation: tighten dependency for git.{html,txt}
  Makefile: iconv() on Darwin has the old interface
  t5300-pack-object.sh: portability issue using /usr/bin/stat
  t3200-branch.sh: small language nit
  usermanual.txt: some capitalization nits
  Make builtin-branch.c handle the git config file
  rename_ref(): only print a warning when config-file update fails
  Distinguish branches by more than case in tests.
  Avoid composing too long "References" header.
  cvsimport: Improve formating consistency
  cvsimport: Reorder options in documentation for better understanding
  cvsimport: Improve usage error reporting
  cvsimport: Improve documentation of CVSROOT and CVS module determination
  cvsimport: sync usage lines with existing options

Conflicts:

	Documentation/Makefile
2007-04-07 01:30:43 -07:00
Arjen Laarhoven
63b4b7a7ed Makefile: iconv() on Darwin has the old interface
The libiconv on Darwin uses the old iconv() interface (2nd argument is a
const char **, instead of a char **).  Add OLD_ICONV to the Darwin
variable definitions to handle this.

Signed-off-by: Arjen Laarhoven <arjen@yaph.org>
Acked-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-06 21:29:15 -07:00
Junio C Hamano
77e6f5bc10 Merge branch 'maint'
* maint:
  Fix lseek(2) calls with args 2 and 3 swapped
  Honor -p<n> when applying git diffs
  Fix dependency of common-cmds.h
  Fix renaming branch without config file
  DESTDIR support for git/contrib/emacs
  gitweb: Fix bug in "blobdiff" view for split (e.g. file to symlink) patches
  Document --left-right option to rev-list.
  Revert "builtin-archive: use RUN_SETUP"
  rename contrib/hooks/post-receieve-email to contrib/hooks/post-receive-email.
  rerere: make sorting really stable.
  Fix t4200-rerere for white-space from "wc -l"
2007-04-05 16:34:51 -07:00
Fernando J. Pereda
3b486cd229 Makefile: Add '+' to QUIET_SUBDIR0 to fix parallel make.
Signed-off-by: Fernando J. Pereda <ferdy@gentoo.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-05 15:13:44 -07:00
Alex Riesen
33580fbd30 Fix passing of TCLTK_PATH to git-gui
GNU make does not include environment variables by default
in its namespace. Just pass them in make command line.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-05 15:07:16 -07:00
Junio C Hamano
766b084f59 Fix dependency of common-cmds.h
Say $(wildcard ...) when we mean it.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-05 15:03:48 -07:00
Junio C Hamano
80b6e39459 Merge branch 'post1.5.1/tcltk'
* post1.5.1/tcltk:
  Optional Tck/Tk: ignore generated files.
  Eliminate checks of user-specified Tcl/Tk interpreter.
  Rewrite Tcl/Tk interpreter path for the GUI tools.
  Add --with-tcltk and --without-tcltk to configure.
  NO_TCLTK
2007-04-04 00:09:52 -07:00
Eygene Ryabinkin
6bdb18a9ce Rewrite Tcl/Tk interpreter path for the GUI tools.
--with-tcltk=/path/to/wish sets the TCLTK_PATH variable that is
used to substitute the location of the wish interpreter in the
Tcl/Tk programs.

New tracking file, GIT-GUI-VARS, was introduced: it tracks the
location of the Tcl/Tk interpreter and activates the GUI tools
rebuild if the interpreter path was changed. The separate tracker
is better than the GIT-CFLAGS: there is no need to rebuild the whole
git if the interpreter path was changed.

Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
2007-03-31 23:59:47 -07:00
Eygene Ryabinkin
81b63c707e Add --with-tcltk and --without-tcltk to configure.
--with-tcltk enables the search of the Tcl/Tk interpreter. If no
interpreter is found then Tcl/Tk dependend parts are disabled.

--without-tcltk unconditionally disables Tcl/Tk dependent parts.

The original behaviour is not changed: bare './configure' just
installs the Tcl/Tk part doing no checks for the interpreter.

Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
2007-03-31 23:59:47 -07:00
Eygene Ryabinkin
3cfaf11b1d NO_TCLTK
Makefile knob named NO_TCLTK was introduced. It prevents the build
and installation of the Tcl/Tk dependent parts.

Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
2007-03-31 23:59:47 -07:00
Eygene Ryabinkin
7878b383d6 Add the WITH_P4IMPORT knob to the Makefile.
WITH_P4IMPORT: enables the installation of the Perforce import
script.

Signed-off-by: Eygene Ryabinkin <rea-git@codelabs.ru>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-31 23:59:42 -07:00
Junio C Hamano
aa453216d1 Do not bother documenting fetch--tool
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-30 01:03:09 -07:00
Gerrit Pape
66d5871ead Makefile: remove test-chmtime program in target clean.
While running 'make test', the test-chmtime program is created, and should
be cleaned up on 'make clean'.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-27 12:58:46 -07:00
James Bowes
6757ada403 Make gc a builtin.
Signed-off-by: James Bowes <jbowes@dangerouslyinc.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-17 00:34:19 -07:00
Junio C Hamano
c1f5086e23 Merge branch 'jc/fetch'
* jc/fetch:
  .gitignore: add git-fetch--tool
  builtin-fetch--tool: fix reflog notes.
  git-fetch: retire update-local-ref which is not used anymore.
  builtin-fetch--tool: make sure not to overstep ls-remote-result buffer.
  fetch--tool: fix uninitialized buffer when reading from stdin
  builtin-fetch--tool: adjust to updated sha1_object_info().
  git-fetch--tool takes flags before the subcommand.
  Use stdin reflist passing in git-fetch.sh
  Use stdin reflist passing in parse-remote
  Allow fetch--tool to read from stdin
  git-fetch: rewrite expand_ref_wildcard in C
  git-fetch: rewrite another shell loop in C
  git-fetch: move more code into C.
  git-fetch--tool: start rewriting parts of git-fetch in C.
  git-fetch: split fetch_main into fetch_dumb and fetch_native
2007-03-14 01:40:19 -07:00
Theodore Ts'o
c4b4a5af16 Add git-mergetool to run an appropriate merge conflict resolution program
The git-mergetool program can be used to automatically run an appropriate
merge resolution program to resolve merge conflicts.  It will automatically
run one of kdiff3, tkdiff, meld, xxdiff, or emacs emerge programs.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-03-13 20:14:05 -04:00
Junio C Hamano
9550a9cea9 Merge branch 'maint'
* maint:
  Don't package the git-gui credits file anymore
  git-gui: Allow 'git gui version' outside of a repository
  git-gui: Revert "git-gui: Display all authors of git-gui."
  git-gui: Revert "Don't modify CREDITS-FILE if it hasn't changed."
  git-gui: Allow committing empty merges
2007-03-12 23:13:01 -07:00
Shawn O. Pearce
115f0fe499 Don't package the git-gui credits file anymore
Since git-gui 0.6.4 the credits file is no longer produced.
This file was removed from git-gui due to build issues that
a lot of users and Git developers have reported running into.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-12 11:44:46 -07:00
Junio C Hamano
e286114d0e Merge branch 'js/revert-cherry'
* js/revert-cherry:
  cherry-pick: Bug fix 'cherry picked from' message.
  cherry-pick: Suggest a better method to retain authorship
  Make git-revert & git-cherry-pick a builtin
2007-03-10 23:00:11 -08:00
Alex Riesen
a6f37099d0 Allow "make -w" generate its usual output
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-06 17:17:13 -08:00
Alex Riesen
b777434383 Support of "make -s": do not output anything of the build itself
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-06 17:17:07 -08:00
Alex Riesen
31d0399c3c More build output cleaning up
- print output file name for .c files
- suppress output of the names of subdirectories when make changes into them
- use GEN prefix for makefile generation in perl/

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-06 17:16:37 -08:00
Shawn O. Pearce
2314c94770 Make 'make' quiet by default
Per Junio's suggestion we are setting 'make' to be quiet by default,
with `make V=1` available to force GNU make back to its default
behavior of showing each command it is running.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-06 00:48:13 -08:00
Shawn O. Pearce
74f2b2a8d0 Make 'make' quieter while building git
I find it difficult to see compiler warnings amongst the massive
spewing produced by GNU make as it works through our productions.
This is especially true if CFLAGS winds up being rather long, due
to a large number of -W options being enabled and due to a number
of -D options being configured/required by my platform.

By defining QUIET_MAKE (e.g. make QUIET_MAKE=YesPlease) during
compilation users will get a less verbose output, such as:

    ...
    CC builtin-grep.c
builtin-grep.c:187: warning: 'external_grep' defined but not used
    CC builtin-init-db.c
    CC builtin-log.c
    CC builtin-ls-files.c
    CC builtin-ls-tree.c
    ...

The verbose (normal make) output is still the default.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-06 00:48:13 -08:00
Johannes Schindelin
9509af686b Make git-revert & git-cherry-pick a builtin
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 22:59:34 -08:00
Junio C Hamano
253e772ede Merge branch 'maint'
* maint:
  Unset NO_C99_FORMAT on Cygwin.
  Fix a "pointer type missmatch" warning.
  Fix some "comparison is always true/false" warnings.
  Fix an "implicit function definition" warning.
  Fix a "label defined but unreferenced" warning.
  Document the config variable format.suffix
  git-merge: fail correctly when we cannot fast forward.
  builtin-archive: use RUN_SETUP
  Fix git-gc usage note
2007-03-03 19:47:46 -08:00
Ramsay Jones
7943b3a94f Unset NO_C99_FORMAT on Cygwin.
This should only be set based on the capability of your
compiler/library to support c99 format specifiers. In this
case the version of gcc/newlib and indirectly the version
of Cygwin. It should probably only be set in your config.mak
file.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 19:35:17 -08:00
Ramsay Jones
fd547a972a Fix a "pointer type missmatch" warning.
In particular, the second parameter in the call to iconv() will
cause this warning if your library declares iconv() with the
second (input buffer pointer) parameter of type const char **.
This is the old prototype, which is none-the-less used by the
current version of newlib on Cygwin. (It appears in old versions
of glibc too).

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 18:55:17 -08:00
Junio C Hamano
8b969a5fb5 Merge branch 'maint'
* maint:
  Another memory overrun in http-push.c
  fetch.o depends on the headers, too.
  Documentation: Correct minor typo in git-add documentation.
  Documentation/git-send-email.txt: Fix labeled list formatting
  Documentation/git-quiltimport.txt: Fix labeled list formatting
  Documentation/build-docdep.perl: Fix dependencies for included asciidoc files
2007-03-02 00:31:51 -08:00
Johannes Schindelin
0df56eabf2 fetch.o depends on the headers, too.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-01 13:26:57 -08:00
Junio C Hamano
77b50ab009 Merge branch 'js/bundle'
* js/bundle:
  bundle: reword missing prerequisite error message
  git-bundle: record commit summary in the prerequisite data
  git-bundle: fix 'create --all'
  git-bundle: avoid fork() in verify_bundle()
  git-bundle: assorted fixes
  Add git-bundle: move objects and references by archive
2007-02-28 14:38:36 -08:00
Junio C Hamano
88459358cd Merge branch 'np/types' into jc/fetch
* np/types: (253 commits)
  get rid of lookup_object_type()
  convert object type handling from a string to a number
  formalize typename(), and add its reverse type_from_string()
  sha1_file.c: don't ignore an error condition in sha1_loose_object_info()
  sha1_file.c: cleanup "offset" usage
  sha1_file.c: cleanup hdr usage
  git-apply: do not fix whitespaces on context lines.
  diff --cc: integer overflow given a 2GB-or-larger file
  mailinfo: do not get confused with logical lines that are too long.
  Documentation: link in 1.5.0.2 material to the top documentation page.
  Documentation: document remote.<name>.tagopt
  GIT 1.5.0.2
  git-remote: support remotes with a dot in the name
  Documentation: describe "-f/-t/-m" options to "git-remote add"
  diff --cc: fix display of symlink conflicts during a merge.
  merge-recursive: fix longstanding bug in merging symlinks
  merge-index: fix longstanding bug in merging symlinks
  diff --cached: give more sensible error message when HEAD is yet to be created.
  Update tests to use test-chmtime
  Add test-chmtime: a utility to change mtime on files
  ...
2007-02-27 02:27:26 -08:00
Eric Wong
17e4836875 Add test-chmtime: a utility to change mtime on files
This is intended to be a portable replacement for our usage
of date(1), touch(1), and Perl one-liners in tests.

Usage: test-chtime (+|=|-|=+|=-)<seconds> <file>..."

  '+' increments the mtime on the files by <seconds>
  '-' decrements the mtime on the files by <seconds>
  '=' sets the mtime on the file to exactly <seconds>
  '=+' and '=-' sets the mtime on the file to <seconds> after or
      before the current time.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-25 11:09:56 -08:00
Junio C Hamano
cc58fc0684 Merge branch 'js/etc-config'
* js/etc-config:
  Make tests independent of global config files
  config: read system-wide defaults from /etc/gitconfig
2007-02-24 01:43:28 -08:00
Johannes Schindelin
2e0afafebd Add git-bundle: move objects and references by archive
Some workflows require use of repositories on machines that cannot be
connected, preventing use of git-fetch / git-push to transport objects and
references between the repositories.

git-bundle provides an alternate transport mechanism, effectively allowing
git-fetch and git-pull to operate using sneakernet transport. `git-bundle
create` allows the user to create a bundle containing one or more branches
or tags, but with specified basis assumed to exist on the target
repository. At the receiving end, git-bundle acts like git-fetch-pack,
allowing the user to invoke git-fetch or git-pull using the bundle file as
the URL. git-fetch and git-ls-remote determine they have a bundle URL by
checking that the URL points to a file, but are otherwise unchanged in
operation with bundles.

The original patch was done by Mark Levedahl <mdl123@verizon.net>.

It was updated to make git-bundle a builtin, and get rid of the tar
format: now, the first line is supposed to say "# v2 git bundle", the next
lines either contain a prerequisite ("-" followed by the hash of the
needed commit), or a ref (the hash of a commit, followed by the name of
the ref), and finally the pack. As a result, the bundle argument can be
"-" now.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-22 22:30:33 -08:00
Junio C Hamano
ef1a5c2fa8 Merge branches 'lt/crlf' and 'jc/apply-config'
* lt/crlf:
  Teach core.autocrlf to 'git apply'
  t0020: add test for auto-crlf
  Make AutoCRLF ternary variable.
  Lazy man's auto-CRLF

* jc/apply-config:
  t4119: test autocomputing -p<n> for traditional diff input.
  git-apply: guess correct -p<n> value for non-git patches.
  git-apply: notice "diff --git" patch again
  Fix botched "leak fix"
  t4119: add test for traditional patch and different p_value
  apply: fix memory leak in prefix_one()
  git-apply: require -p<n> when working in a subdirectory.
  git-apply: do not lose cwd when run from a subdirectory.
  Teach 'git apply' to look at $HOME/.gitconfig even outside of a repository
  Teach 'git apply' to look at $GIT_DIR/config
2007-02-22 21:34:36 -08:00
Junio C Hamano
e79cbbea9e Merge branch 'maint'
* maint:
  git-diff: fix combined diff
  Fix 'git commit -a' in a newly initialized repository
  Include git-gui credits file in dist.
  Document the new core.bare configuration option.
2007-02-22 21:27:37 -08:00
Shawn O. Pearce
4917d2a66e Include git-gui credits file in dist.
The Makefile for the git-gui subproject will fail to execute if run
outside of a git.git directory, such as when building from a .tar.gz
or .tar.bz2.  This is because it is looking for the credits file,
which was created but omitted from the tarball by the toplevel
Makefile.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-21 21:47:42 -08:00
Johannes Schindelin
32043c9f8c config: read system-wide defaults from /etc/gitconfig
The settings in /etc/gitconfig can be overridden in ~/.gitconfig,
which in turn can be overridden in .git/config.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-19 23:05:16 -08:00
Junio C Hamano
2b2b892e36 Merge branch 'maint'
* maint:
  Obey NO_C99_FORMAT in fast-import.c.
  Add a compat/strtoumax.c for Solaris 8.
  git-clone: Sync documentation to usage note.
2007-02-19 18:29:41 -08:00
Jason Riedy
bc6b4f52fc Add a compat/strtoumax.c for Solaris 8.
Solaris 8 was pre-c99, and they weren't willing to commit to
the strtoumax definition according to /usr/include/inttypes.h.

This adds NO_STRTOUMAX and NO_STRTOULL for ancient systems.
If NO_STRTOUMAX is defined, the routine in compat/strtoumax.c
will be used instead.  That routine passes its arguments to
strtoull unless NO_STRTOULL is defined.  If NO_STRTOULL, then
the routine uses strtoul (unsigned long).

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>
Acked-by: Shawn O Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-19 18:20:30 -08:00
Linus Torvalds
6c510bee20 Lazy man's auto-CRLF
It currently does NOT know about file attributes, so it does its
conversion purely based on content. Maybe that is more in the "git
philosophy" anyway, since content is king, but I think we should try to do
the file attributes to turn it off on demand.

Anyway, BY DEFAULT it is off regardless, because it requires a

	[core]
		AutoCRLF = true

in your config file to be enabled. We could make that the default for
Windows, of course, the same way we do some other things (filemode etc).

But you can actually enable it on UNIX, and it will cause:

 - "git update-index" will write blobs without CRLF
 - "git diff" will diff working tree files without CRLF
 - "git checkout" will write files to the working tree _with_ CRLF

and things work fine.

Funnily, it actually shows an odd file in git itself:

	git clone -n git test-crlf
	cd test-crlf
	git config core.autocrlf true
	git checkout
	git diff

shows a diff for "Documentation/docbook-xsl.css". Why? Because we have
actually checked in that file *with* CRLF! So when "core.autocrlf" is
true, we'll always generate a *different* hash for it in the index,
because the index hash will be for the content _without_ CRLF.

Is this complete? I dunno. It seems to work for me. It doesn't use the
filename at all right now, and that's probably a deficiency (we could
certainly make the "is_binary()" heuristics also take standard filename
heuristics into account).

I don't pass in the filename at all for the "index_fd()" case
(git-update-index), so that would need to be passed around, but this
actually works fine.

NOTE NOTE NOTE! The "is_binary()" heuristics are totally made-up by yours
truly. I will not guarantee that they work at all reasonable. Caveat
emptor. But it _is_ simple, and it _is_ safe, since it's all off by
default.

The patch is pretty simple - the biggest part is the new "convert.c" file,
but even that is really just basic stuff that anybody can write in
"Teaching C 101" as a final project for their first class in programming.
Not to say that it's bug-free, of course - but at least we're not talking
about rocket surgery here.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-14 11:19:22 -08:00