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version.sh: handle shallow clones and snapshots. 

Shallow clones (--depth X) lack the N tag used to compute
the revision number: use 'git-YYYY-MM-DD-hhhhhhh' as revision,
where hhhhhhh is the short git hash.

Snapshots from gitweb do not have git information at all,
but they have the short git hash in the directory name:
append it to the release number.
This commit is contained in:
Nicolas George 2011-07-21 15:16:12 +02:00
parent ba99474b1d
commit 657eac048e
1 changed files with 20 additions and 0 deletions
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20
version.sh
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@ -5,9 +5,29 @@ 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 "$revision" || revision=$(cd "$1" && cat RELEASE 2> /dev/null)
# Append the Git hash if we have one
test "$revision" && test "$git_hash" && revision="$revision-$git_hash"
# releases extract the version number from the VERSION file
version=$(cd "$1" && cat VERSION 2> /dev/null)
test "$version" || version=$revision