1#!/bin/sh 2 3# check for SVN revision number 4revision=$(cat snapshot_version 2> /dev/null) 5test $revision || revision=$(cd "$1" && LC_ALL=C svn info 2> /dev/null | grep Revision | cut -d' ' -f2) 6test $revision || revision=$(cd "$1" && grep revision .svn/entries 2>/dev/null | cut -d '"' -f2) 7test $revision || revision=$(cd "$1" && sed -n -e '/^dir$/{n;p;q}' .svn/entries 2>/dev/null) 8test $revision && revision=SVN-r$revision 9 10# check for git short hash 11if ! test $revision; then 12 revision=$(cd "$1" && git log -1 --pretty=format:%h) 13 test $revision && revision=git-$revision 14fi 15 16# no revision number found 17test $revision || revision=UNKNOWN 18 19# releases extract the version number from the VERSION file 20version=$(cat VERSION 2> /dev/null) 21test $version || version=$revision 22 23test -n "$3" && version=$version-$3 24 25NEW_REVISION="#define FFMPEG_VERSION \"$version\"" 26OLD_REVISION=$(cat version.h 2> /dev/null) 27 28# Update version.h only on revision changes to avoid spurious rebuilds 29if test "$NEW_REVISION" != "$OLD_REVISION"; then 30 echo "$NEW_REVISION" > "$2" 31fi 32