git/GIT-VERSION-GEN
Junio C Hamano 0b8b051cd5 GIT-VERSION-GEN: squelch unneeded error from "cat version"
Now this is really a corner case, but if you have the git source
tree from somewhere other than the official tarball, you do not
have version file.  And if git-describe does not work for you
(maybe you do not have git yet), we spilled an error message
from "cat version".

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-03-02 16:42:39 -08:00

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#!/bin/sh
GVF=GIT-VERSION-FILE
DEF_VER=v1.2.GIT
# First try git-describe, then see if there is a version file
# (included in release tarballs), then default
if VN=$(git-describe --abbrev=4 HEAD 2>/dev/null); then
VN=$(echo "$VN" | sed -e 's/-/./g');
elif test -f version
then
VN=$(cat version) || VN="$DEF_VER"
else
VN="$DEF_VER"
fi
VN=$(expr "$VN" : v*'\(.*\)')
dirty=$(sh -c 'git-diff-index --name-only HEAD' 2>/dev/null) || dirty=
case "$dirty" in
'')
;;
*)
VN="$VN-dirty" ;;
esac
if test -r $GVF
then
VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
else
VC=unset
fi
test "$VN" = "$VC" || {
echo >&2 "GIT_VERSION = $VN"
echo "GIT_VERSION = $VN" >$GVF
}