[FFmpeg-cvslog] version.sh: Print versions based on the last git tag for release branches

[Michael Niedermayer]

ffmpeg | branch: release/2.3 | Michael Niedermayer <michaelni at gmx.at> | Mon Jul 28 02:40:35 2014 +0200| [ee606fd0317df202b59946cf9b738c0a01056316] | committer: Michael Niedermayer

version.sh: Print versions based on the last git tag for release branches

release branches are detected by checking if "git" is not in RELEASE
This changes "N-64706-g2f71aeb" to "n2.3-8-g2f71aeb"
for git master theres no change

This should improve the readability of lists of versions which come from
more than 1 release branch or master + release. fate.ffmpeg.org is
one possible example

Reviewed-by: Timothy Gu <timothygu99 at gmail.com>
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ee606fd0317df202b59946cf9b738c0a01056316
---

 version.sh |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/version.sh b/version.sh
index 92edcb9..f9754eb 100755
--- a/version.sh
+++ b/version.sh
@@ -4,7 +4,11 @@
 
 # check for git short hash
 if ! test "$revision"; then
-    revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
+    if (cd "$1" && grep git RELEASE 2> /dev/null >/dev/null) ; then
+        revision=$(cd "$1" && git describe --tags --match N 2> /dev/null)
+    else
+        revision=$(cd "$1" && git describe --tags --always 2> /dev/null)
+    fi
 fi
 
 # Shallow Git clones (--depth) do not have the N tag: