GIT-VERSION-GEN

   1 #!/bin/sh
   2
   3 GVF=GIT-VERSION-FILE
   4 DEF_VER=v0.2.0
   5
   6 LF='
   7 '
   8
   9 if test -d .git -o -f .git &&
  10         VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
  11         case "$VN" in
  12         *$LF*) (exit 1) ;;
  13         v[0-9]*)
  14                 git update-index -q --refresh
  15                 test -z "$(git diff-index --name-only HEAD --)" ||
  16                 VN="$VN-dirty" ;;
  17         esac
  18 then
  19         VN=$(echo "$VN" | sed -e 's/-/./g');
  20 else
  21         VN="$DEF_VER"
  22 fi
  23
  24 VN=$(expr "$VN" : v*'\(.*\)')
  25
  26 if test -r $GVF
  27 then
  28         VC=$(sed -e 's/^GIT_VERSION = //' <$GVF)
  29 else
  30         VC=unset
  31 fi
  32 test "$VN" = "$VC" || {
  33         echo >&2 "GIT_VERSION = $VN"
  34         echo "GIT_VERSION = $VN" >$GVF
  35 }