6de899a4659497afab3c64f10442a79d10965896
[git/git.git] / GIT-VERSION-GEN
1 #!/bin/sh
2
3 GVF=GIT-VERSION-FILE
4 DEF_VER=v1.5.3.3.GIT
5
6 LF='
7 '
8
9 # First see if there is a version file (included in release tarballs),
10 # then try git-describe, then default.
11 if test -f version
12 then
13 VN=$(cat version) || VN="$DEF_VER"
14 elif test -d .git &&
15 VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
16 case "$VN" in
17 *$LF*) (exit 1) ;;
18 v[0-9]*) : happy ;;
19 esac
20 then
21 VN=$(echo "$VN" | sed -e 's/-/./g');
22 else
23 VN="$DEF_VER"
24 fi
25
26 VN=$(expr "$VN" : v*'\(.*\)')
27
28 dirty=$(sh -c 'git diff-index --name-only HEAD' 2>/dev/null) || dirty=
29 case "$dirty" in
30 '')
31 ;;
32 *)
33 VN="$VN-dirty" ;;
34 esac
35
36 if test -r $GVF
37 then
38 VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
39 else
40 VC=unset
41 fi
42 test "$VN" = "$VC" || {
43 echo >&2 "GIT_VERSION = $VN"
44 echo "GIT_VERSION = $VN" >$GVF
45 }
46
47