Have sample update hook not refuse deleting a branch through push.

g-pape · Junio C Hamano · commit 91776491da19 · 2007-04-16T01:35:39.000-07:00
source ref might be 0000...0000 to delete a branch through git-push,
'git &lt;remote&gt; push :&lt;branch&gt;'.  The update hook should not decline this.

Signed-off-by: Gerrit Pape &lt;pape@smarden.org&gt;
Signed-off-by: Junio C Hamano &lt;junkio@cox.net&gt;
diff --git a/templates/hooks--update b/templates/hooks--update
@@ -41,7 +41,12 @@ if [ -z "$projectdesc" -o "$projectdesc" = "Unnamed repository; edit this file t
 fi
 
 # --- Check types
-newrev_type=$(git-cat-file -t $newrev)
+# if $newrev is 0000...0000, it's a commit to delete a branch
+if [ -z "${newrev##0*}" ]; then
+	newrev_type=commit
+else
+	newrev_type=$(git-cat-file -t $newrev)
+fi
 
 case "$refname","$newrev_type" in
 	refs/tags/*,commit)
