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58 lines
1.7 KiB
58 lines
1.7 KiB
#!/bin/sh |
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# Usage: version.sh <ffmpeg-root-dir> <output-version.h> <extra-version> |
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# check for git short hash |
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if ! test "$revision"; then |
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revision=$(cd "$1" && git describe --tags --match N 2> /dev/null) |
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fi |
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# Shallow Git clones (--depth) do not have the N tag: |
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# use 'git-YYYY-MM-DD-hhhhhhh'. |
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test "$revision" || revision=$(cd "$1" && |
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git log -1 --pretty=format:"git-%cd-%h" --date=short 2> /dev/null) |
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# Snapshots from gitweb are in a directory called ffmpeg-hhhhhhh or |
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# ffmpeg-HEAD-hhhhhhh. |
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if [ -z "$revision" ]; then |
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srcdir=$(cd "$1" && pwd) |
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case "$srcdir" in |
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*/ffmpeg-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]) |
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git_hash="${srcdir##*-}";; |
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*/ffmpeg-HEAD-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]) |
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git_hash="${srcdir##*-}";; |
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esac |
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fi |
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# no revision number found |
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test "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null) |
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# Append the Git hash if we have one |
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test "$revision" && test "$git_hash" && revision="$revision-$git_hash" |
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# releases extract the version number from the VERSION file |
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version=$(cd "$1" && cat VERSION 2> /dev/null) |
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test "$version" || version=$revision |
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test -n "$3" && version=$version-$3 |
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if [ -z "$2" ]; then |
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echo "$version" |
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exit |
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fi |
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NEW_REVISION="#define FFMPEG_VERSION \"$version\"" |
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OLD_REVISION=$(cat "$2" 2> /dev/null | head -3 | tail -1) |
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# String used for preprocessor guard |
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GUARD=$(echo "$2" | sed 's/\//_/' | sed 's/\./_/' | tr '[:lower:]' '[:upper:]' | sed 's/LIB//') |
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# Update version header only on revision changes to avoid spurious rebuilds |
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if test "$NEW_REVISION" != "$OLD_REVISION"; then |
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cat << EOF > "$2" |
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#ifndef $GUARD |
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#define $GUARD |
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$NEW_REVISION |
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#endif /* $GUARD */ |
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EOF |
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fi
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