| 1 | #!/bin/sh |
| 2 | |
| 3 | # Usage: version.sh <ffmpeg-root-dir> <output-version.h> <extra-version> |
| 4 | |
| 5 | # check for git short hash |
| 6 | if ! test "$revision"; then |
| 7 | if (cd "$1" && grep git RELEASE 2> /dev/null >/dev/null) ; then |
| 8 | revision=$(cd "$1" && git describe --tags --match N 2> /dev/null) |
| 9 | else |
| 10 | revision=$(cd "$1" && git describe --tags --always 2> /dev/null) |
| 11 | fi |
| 12 | fi |
| 13 | |
| 14 | # Shallow Git clones (--depth) do not have the N tag: |
| 15 | # use 'git-YYYY-MM-DD-hhhhhhh'. |
| 16 | test "$revision" || revision=$(cd "$1" && |
| 17 | git log -1 --pretty=format:"git-%cd-%h" --date=short 2> /dev/null) |
| 18 | |
| 19 | # Snapshots from gitweb are in a directory called ffmpeg-hhhhhhh or |
| 20 | # ffmpeg-HEAD-hhhhhhh. |
| 21 | if [ -z "$revision" ]; then |
| 22 | srcdir=$(cd "$1" && pwd) |
| 23 | case "$srcdir" in |
| 24 | */ffmpeg-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]) |
| 25 | git_hash="${srcdir##*-}";; |
| 26 | */ffmpeg-HEAD-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]) |
| 27 | git_hash="${srcdir##*-}";; |
| 28 | esac |
| 29 | fi |
| 30 | |
| 31 | # no revision number found |
| 32 | test "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null) |
| 33 | |
| 34 | # Append the Git hash if we have one |
| 35 | test "$revision" && test "$git_hash" && revision="$revision-$git_hash" |
| 36 | |
| 37 | # releases extract the version number from the VERSION file |
| 38 | version=$(cd "$1" && cat VERSION 2> /dev/null) |
| 39 | test "$version" || version=$revision |
| 40 | |
| 41 | test -n "$3" && version=$version-$3 |
| 42 | |
| 43 | if [ -z "$2" ]; then |
| 44 | echo "$version" |
| 45 | exit |
| 46 | fi |
| 47 | |
| 48 | NEW_REVISION="#define FFMPEG_VERSION \"$version\"" |
| 49 | OLD_REVISION=$(cat "$2" 2> /dev/null | head -3 | tail -1) |
| 50 | |
| 51 | # String used for preprocessor guard |
| 52 | GUARD=$(echo "$2" | sed 's/\//_/' | sed 's/\./_/' | tr '[:lower:]' '[:upper:]' | sed 's/LIB//') |
| 53 | |
| 54 | # Update version header only on revision changes to avoid spurious rebuilds |
| 55 | if test "$NEW_REVISION" != "$OLD_REVISION"; then |
| 56 | cat << EOF > "$2" |
| 57 | #ifndef $GUARD |
| 58 | #define $GUARD |
| 59 | $NEW_REVISION |
| 60 | #endif /* $GUARD */ |
| 61 | EOF |
| 62 | fi |