3 # check for SVN revision number
4 revision=$(cd "$1" && cat snapshot_version 2> /dev/null)
5 test "$revision" || revision=$(cd "$1" && LC_ALL=C svn info 2> /dev/null | grep "Last Changed Rev" | cut -d' ' -f4)
6 test "$revision" || revision=$(cd "$1" && grep committed-rev .svn/entries 2>/dev/null | head -n 1 | cut -d '"' -f2)
7 test "$revision" || revision=$(cd "$1" && sed -n -e '/^dir$/{n
10 }' .svn/entries 2>/dev/null)
11 test "$revision" && revision=SVN-r$revision
13 # check for git svn revision number
14 if ! test "$revision"; then
15 revision=$(cd "$1" && git svn find-rev HEAD 2> /dev/null)
16 test "$revision" && revision=git-svn-r$revision
19 # check for git short hash
20 if ! test "$revision"; then
21 revision=$(cd "$1" && git describe --always 2> /dev/null)
22 test "$revision" && revision=git-$revision
25 # no revision number found
26 test "$revision" || revision=UNKNOWN
28 # releases extract the version number from the VERSION file
29 version=$(cd "$1" && cat VERSION 2> /dev/null)
30 test "$version" || version=$revision
32 test -n "$3" && version=$version-$3
39 NEW_REVISION="#define FFMPEG_VERSION \"$version\""
40 OLD_REVISION=$(cat version.h 2> /dev/null)
42 # Update version.h only on revision changes to avoid spurious rebuilds
43 if test "$NEW_REVISION" != "$OLD_REVISION"; then
44 echo "$NEW_REVISION" > "$2"