Support raw TrueHD files
[libav.git] / version.sh
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1#!/bin/sh
2
123103ca 3# check for SVN revision number
2b229186 4revision=$(cat snapshot_version 2> /dev/null)
10671cf5 5test $revision || revision=$(cd "$1" && LC_ALL=C svn info 2> /dev/null | grep Revision | cut -d' ' -f2)
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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)
123103ca 8test $revision && revision=SVN-r$revision
a66d63a9 9
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10# check for git short hash
11if ! test $revision; then
d33a14e4 12 revision=$(cd "$1" && git log -1 --pretty=format:%h)
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13 test $revision && revision=git-$revision
14fi
15
de2c2b5a 16# no revision number found
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17test $revision || revision=UNKNOWN
18
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19# releases extract the version number from the VERSION file
20version=$(cat VERSION 2> /dev/null)
21test $version || version=$revision
ac63af34 22
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23test -n "$3" && version=$version-$3
24
25NEW_REVISION="#define FFMPEG_VERSION \"$version\""
d33a14e4 26OLD_REVISION=$(cat version.h 2> /dev/null)
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27
28# Update version.h only on revision changes to avoid spurious rebuilds
29if test "$NEW_REVISION" != "$OLD_REVISION"; then
9e6165b5 30 echo "$NEW_REVISION" > "$2"
f1cc88a5 31fi