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#!/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