#!/bin/sh
-# check for SVN revision number
-revision=$(cat snapshot_version 2> /dev/null)
-test $revision || revision=$(cd "$1" && LC_ALL=C svn info 2> /dev/null | grep Revision | cut -d' ' -f2)
-test $revision || revision=$(cd "$1" && grep revision .svn/entries 2>/dev/null | cut -d '"' -f2)
-test $revision || revision=$(cd "$1" && sed -n -e '/^dir$/{n
-p
-q
-}' .svn/entries 2>/dev/null)
-test $revision && revision=SVN-r$revision
+# Usage: version.sh <ffmpeg-root-dir> <output-version.h> <extra-version>
# check for git short hash
-if ! test $revision; then
- revision=$(cd "$1" && git log -1 --pretty=format:%h)
- test $revision && revision=git-$revision
+if ! test "$revision"; then
+ revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
+fi
+
+# Shallow Git clones (--depth) do not have the N tag:
+# use 'git-YYYY-MM-DD-hhhhhhh'.
+test "$revision" || revision=$(cd "$1" &&
+ git log -1 --pretty=format:"git-%cd-%h" --date=short 2> /dev/null)
+
+# Snapshots from gitweb are in a directory called ffmpeg-hhhhhhh or
+# ffmpeg-HEAD-hhhhhhh.
+if [ -z "$revision" ]; then
+ srcdir=$(cd "$1" && pwd)
+ case "$srcdir" in
+ */ffmpeg-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
+ git_hash="${srcdir##*-}";;
+ */ffmpeg-HEAD-[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f])
+ git_hash="${srcdir##*-}";;
+ esac
fi
# no revision number found
-test $revision || revision=UNKNOWN
+test "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null)
+
+# Append the Git hash if we have one
+test "$revision" && test "$git_hash" && revision="$revision-$git_hash"
# releases extract the version number from the VERSION file
-version=$(cat VERSION 2> /dev/null)
-test $version || version=$revision
+version=$(cd "$1" && cat VERSION 2> /dev/null)
+test "$version" || version=$revision
test -n "$3" && version=$version-$3
+if [ -z "$2" ]; then
+ echo "$version"
+ exit
+fi
+
NEW_REVISION="#define FFMPEG_VERSION \"$version\""
-OLD_REVISION=$(cat version.h 2> /dev/null)
+OLD_REVISION=$(cat "$2" 2> /dev/null | head -3 | tail -1)
+
+# String used for preprocessor guard
+GUARD=$(echo "$2" | sed 's/\//_/' | sed 's/\./_/' | tr '[:lower:]' '[:upper:]' | sed 's/LIB//')
-# Update version.h only on revision changes to avoid spurious rebuilds
+# Update version header only on revision changes to avoid spurious rebuilds
if test "$NEW_REVISION" != "$OLD_REVISION"; then
- echo "$NEW_REVISION" > "$2"
+ cat << EOF > "$2"
+#ifndef $GUARD
+#define $GUARD
+$NEW_REVISION
+#endif /* $GUARD */
+EOF
fi