version.sh

   1 #!/bin/sh
   2
   3 # check for SVN revision number
   4 revision=`cd "$1" && LC_ALL=C svn info 2> /dev/null | grep Revision | cut -d' ' -f2`
   5 test $revision || revision=`cd "$1" && grep revision .svn/entries 2>/dev/null | cut -d '"' -f2`
   6 test $revision || revision=`cd "$1" && sed -n -e '/^dir$/{n;p;q}' .svn/entries 2>/dev/null`
   7 test $revision && revision=SVN-r$revision
   8
   9 # check for git short hash
  10 if ! test $revision; then
  11     revision=`cd "$1" && git log -1 --pretty=format:%h`
  12     test $revision && revision=git-$revision
  13 fi
  14
  15 # no version number found
  16 test $revision || revision=UNKNOWN
  17
  18 NEW_REVISION="#define FFMPEG_VERSION \"$revision\""
  19 OLD_REVISION=`cat version.h 2> /dev/null`
  20
  21 # Update version.h only on revision changes to avoid spurious rebuilds
  22 if test "$NEW_REVISION" != "$OLD_REVISION"; then
  23     echo "$NEW_REVISION" > version.h
  24 fi