Add a post-update hook for HTTP clones

cgit's built-in clone support speaks the dumb HTTP protocol, which
serves static files that only `git update-server-info` refreshes.
Without this hook a clone can miss refs pushed after the repository
was created.

1 file changed, 18 insertions, 0 deletions

diff --git a/examples/hooks/post-update.update-server-info b/examples/hooks/post-update.update-server-info
new file mode 100755
index 0000000..d499ce5
--- /dev/null
+++ b/examples/hooks/post-update.update-server-info
@@ -0,0 +1,18 @@
+#!/bin/sh
+#
+# Example hook that keeps cgit's dumb HTTP clone data current.
+#
+# cgit can serve "git clone" over HTTP by itself using the dumb protocol,
+# which is on by default through enable-http-clone. The dumb protocol
+# reads a few static files that git refreshes only when you run
+# "git update-server-info", so without this hook a fresh push can leave a
+# clone unable to see the new refs and objects.
+#
+# You do not need this when you clone through git-http-backend (the smart
+# protocol) or over ssh or git://. It matters only when cgit itself is the
+# clone endpoint.
+#
+# To install it, copy or link this file to "hooks/post-update" in each
+# repository and make sure it is executable.
+#
+exec git update-server-info