GIT-VERSION-GEN

   1 #!/bin/sh
   2
   3 GVF=GIT-VERSION-FILE
   4 DEF_VER=v1.5.3.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