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With the --dirty option, git describe works on HEAD but append s"-dirty"
iff the contents of the work tree differs from HEAD. E.g.
$ git describe --dirty
v1.6.5-15-gc274db7
$ echo >> Makefile
$ git describe --dirty
v1.6.5-15-gc274db7-dirty
The --dirty option can also be used to specify what is appended, instead
of the default string "-dirty".
$ git describe --dirty=.mod
v1.6.5-15-gc274db7.mod
Many build scripts use `git describe` to produce a version number based on
the description of HEAD (on which the work tree is based) + saying that if
the build contains uncommitted changes. This patch helps the writing of
such scripts since `git describe --dirty` does directly the intended thing.
Three possiblities were considered while discussing this new feature:
1. Describe the work tree by default and describe HEAD only if "HEAD" is
explicitly specified
Pro: does the right thing by default (both for users and for scripts)
Pro: other git commands that works on the work tree by default
Con: breaks existing scripts used by the Linux kernel and other projects
2. Use --worktree instead of --dirty
Pro: does what it says: "git describe --worktree" describes the work tree
Con: other commands do not require a --worktree option when working
on the work tree (it often is the default mode for them)
Con: unusable with an optional value: "git describe --worktree=.mod"
is quite unintuitive.
3. Use --dirty as in this patch
Pro: makes sense to specify an optional value (what the dirty mark is)
Pro: does not have any of the big cons of previous alternatives
* does not break scripts
* is not inconsistent with other git commands
This patch takes the third approach.
Signed-off-by: Jean Privat <jean@pryen.org>
Acked-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
////////////////////////////////////////////////////////////////
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
Git is a fast, scalable, distributed revision control system with an
unusually rich command set that provides both high-level operations
and full access to internals.
Git is an Open Source project covered by the GNU General Public License.
It was originally written by Linus Torvalds with help of a group of
hackers around the net. It is currently maintained by Junio C Hamano.
Please read the file INSTALL for installation instructions.
See Documentation/gittutorial.txt to get started, then see
Documentation/everyday.txt for a useful minimum set of commands, and
Documentation/git-commandname.txt for documentation of each command.
If git has been correctly installed, then the tutorial can also be
read with "man gittutorial" or "git help tutorial", and the
documentation of each command with "man git-commandname" or "git help
commandname".
CVS users may also want to read Documentation/gitcvs-migration.txt
("man gitcvs-migration" or "git help cvs-migration" if git is
installed).
Many Git online resources are accessible from http://git-scm.com/
including full documentation and Git related tools.
The user discussion and development of Git take place on the Git
mailing list -- everyone is welcome to post bug reports, feature
requests, comments and patches to git@vger.kernel.org. To subscribe
to the list, send an email with just "subscribe git" in the body to
majordomo@vger.kernel.org. The mailing list archives are available at
http://marc.theaimsgroup.com/?l=git and other archival sites.
The messages titled "A note from the maintainer", "What's in
git.git (stable)" and "What's cooking in git.git (topics)" and
the discussion following them on the mailing list give a good
reference for project status, development direction and
remaining tasks.