GIT-VERSION-GEN

   1 #!/bin/sh
   2
   3 GVF=GIT-VERSION-FILE
   4 DEF_VER=v0.1.0
   5 # DEF_VER=v0.1.0.GIT
   6
   7 LF='
   8 '
   9
  10 # First see if there is a version file (included in release tarballs),
  11 # then try git-describe, then default.
  12 if test -f version
  13 then
  14         VN=$(cat version) || VN="$DEF_VER"
  15 elif test -d .git -o -f .git &&
  16         VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
  17         case "$VN" in
  18         *$LF*) (exit 1) ;;
  19         v[0-9]*)
  20                 git update-index -q --refresh
  21                 test -z "$(git diff-index --name-only HEAD --)" ||
  22                 VN="$VN-dirty" ;;
  23         esac
  24 then
  25         VN=$(echo "$VN" | sed -e 's/-/./g');
  26 else
  27         VN="$DEF_VER"
  28 fi
  29
  30 VN=$(expr "$VN" : v*'\(.*\)')
  31
  32 if test -r $GVF
  33 then
  34         VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
  35 else
  36         VC=unset
  37 fi
  38 test "$VN" = "$VC" || {
  39         echo >&2 "GIT_VERSION = $VN"
  40         echo "GIT_VERSION = $VN" >$GVF
  41 }