diff --git a/build-all-branches b/build-all-branches
new file mode 100755
index 0000000..8bb6619
--- /dev/null
+++ b/build-all-branches
@@ -0,0 +1,29 @@
+#! /bin/sh
+
+# Prepare master branch and then execute this script.
+
+branches='master el6 epel7 f29 f30 f31'
+
+exit_handler ()
+{
+    git checkout master
+}
+
+trap exit_handler EXIT
+
+set -e
+set -x
+
+koji hello
+
+tasks=
+for branch in $branches; do
+    if test $branch != master; then
+        git checkout "$branch"
+        git merge master
+    fi
+    git push
+    tasks="${tasks}`fedpkg build --nowait | grep 'Created task' | cut -d: -f2`"
+done
+
+koji watch-task $tasks