version.sh 1.2 KB
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#!/bin/sh

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# check for SVN revision number
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revision=$(cat snapshot_version 2> /dev/null)
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test $revision || revision=$(cd "$1" && LC_ALL=C svn info 2> /dev/null | grep Revision | cut -d' ' -f2)
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test $revision || revision=$(cd "$1" && grep revision .svn/entries 2>/dev/null | cut -d '"' -f2)
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test $revision || revision=$(cd "$1" && sed -n -e '/^dir$/{n
p
q
}' .svn/entries 2>/dev/null)
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test $revision && revision=SVN-r$revision
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# check for git svn revision number
if ! test $revision; then
    revision=$(cd "$1" && git svn find-rev HEAD)
    test $revision && revision=git-svn-r$revision
fi

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# check for git short hash
if ! test $revision; then
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    revision=$(cd "$1" && git log -1 --pretty=format:%h)
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    test $revision && revision=git-$revision
fi

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# no revision number found
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test $revision || revision=UNKNOWN

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# releases extract the version number from the VERSION file
version=$(cat VERSION 2> /dev/null)
test $version || version=$revision
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test -n "$3" && version=$version-$3

NEW_REVISION="#define FFMPEG_VERSION \"$version\""
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OLD_REVISION=$(cat version.h 2> /dev/null)
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# Update version.h only on revision changes to avoid spurious rebuilds
if test "$NEW_REVISION" != "$OLD_REVISION"; then
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    echo "$NEW_REVISION" > "$2"
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fi