[PATCH] git-project-version

["Santi Béjar" <sbejar@gmail.com>]

Introduce an easy way for projects to get its git version. This is
something that other projects using git would like to do, and we don't
want them all reinventing the wheel.

Signed-off-by: Santi Béjar <sbejar@gmail.com>
---
Hi *,

I would prefer an output with an explicit git string as:

v1.4.2-rc3-git46faaaf

Also I would prefer the dirty state with an ending M as in:

v1.4.2-rc3-git46faaaf-M

to use the same letter of the diff family.

   Santi

 Makefile               |    3 ++-
 git-project-version.sh |    9 +++++++++
 2 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/Makefile b/Makefile
index d662bd6..7c4e360 100644
--- a/Makefile
+++ b/Makefile
@@ -169,7 +169,8 @@ SCRIPT_SH = \
 	git-applymbox.sh git-applypatch.sh git-am.sh \
 	git-merge.sh git-merge-stupid.sh git-merge-octopus.sh \
 	git-merge-resolve.sh git-merge-ours.sh \
-	git-lost-found.sh git-quiltimport.sh
+	git-lost-found.sh git-quiltimport.sh \
+	git-project-version.sh
 
 SCRIPT_PERL = \
 	git-archimport.perl git-cvsimport.perl git-relink.perl \
diff --git a/git-project-version.sh b/git-project-version.sh
new file mode 100755
index 0000000..88b21fa
--- /dev/null
+++ b/git-project-version.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+# First try git-describe.
+VN=$(git describe --abbrev=4 HEAD 2>/dev/null) ||
+VN=$(git rev-parse --short HEAD | sed -e 's/^/g/')
+
+dirty=$(sh -c 'git diff-index --name-only HEAD' 2>/dev/null) || dirty=
+[ "$dirty" ] && VN="$VN-dirty"
+
+echo $VN
-- 
1.4.2.rc3.g3f0a-dirty