optional variables may be empty

[code/fbi-announce.git] / post-receive-hook.sh

diff --git a/post-receive-hook.sh b/post-receive-hook.sh
index b9b7d299d0f69be3088ec8872e411789d8d25e16..04198d3679e24f62c03edcd2508976583ecb4d4e 100755 (executable)
--- a/post-receive-hook.sh
+++ b/post-receive-hook.sh
@@ -8,15 +8,21 @@
 #
 set -eu
 
-refname=$3
-rev=$(git rev-parse ${refname})
-oldhead=$1
-newhead=$2
-
 realself=$(readlink -f ${0})
 siblingscript="${realself%/*}/fbi-announce.sh"
 
-for commit in $(git rev-parse --not --branches | grep -v ${rev} |
-                git rev-list --reverse --stdin ${oldhead}..${newhead}); do
-  ${siblingscript} ${refname} ${commit}
-done
+process_update()
+{
+  for commit in $(git rev-parse --not --branches | grep -v ${rev} |
+                  git rev-list --reverse --stdin ${1}..${2}); do
+    ${siblingscript} ${3} ${commit}
+  done
+}
+
+if [ $# -eq 3 ]; then
+  process_update "${@}"
+else
+  while read oldrev newrev refname; do
+    process_update "${oldrev}" "${newrev}" "${refname}"
+  done
+fi