#!/bin/bash

check_commit() {
	# check the log message for ticket number
	message=`git log --format=%s -1 $1`
	ticket=`echo "$message" | grep -o "TG-[0-9]\+"`
	if [ "$ticket" = "" ] ; then
		echo "The first line of the commit message $1 don't contain a Taiga issue number (TG-<issue number>)"
		exit 1
	fi
}

NULL_SHA1="0000000000000000000000000000000000000000" # 40 0's
new_list=
any_deleted=false
while read oldsha newsha refname; do
	new_list="$new_list $newsha"
done

git rev-list $new_list --not --all |
while read sha1; do
    objtype=$(git cat-file -t $sha1)
    case $objtype in
    commit) check_commit $sha1;;
    esac
done