#!/bin/sh
#
# An example hook script to mail out commit update information.
# Called by git-receive-pack with arguments: refname sha1-old sha1-new
#
# To enable this hook:
# (1) change the recipient e-mail address
# (2) make this file executable by "chmod +x update".
#

recipient="commit-list@example.com"

if expr "$2" : '0*$' >/dev/null
then
        echo "Created a new ref, with the following commits:"
        git-rev-list --pretty "$3"
else
        base=$(git-merge-base "$2" "$3")
        case "$base" in
        "$2")
                echo "New commits:"
                ;;
        *)
                echo "Rebased ref, commits from common ancestor:"
                ;;
        esac
        git-rev-list --pretty "$3" "^$base"
fi |
mail -s "Changes to ref $1" "$recipient"
exit 0