Git ticket ref hook

commit-msg.php

#!/usr/bin/env php
<?php

$REF_PATTERN = "[A-Z]{3,}-\\d+";

$branch = exec("git rev-parse --abbrev-ref HEAD");

if (preg_match("/(bug|feature)\\/($REF_PATTERN)/", $branch, $matches)) {
    $msg = file_get_contents($argv[1]);
    $ticket = $matches[2];
    
    if (!preg_match("/\\[.*?$REF_PATTERN.*?\\]/", $msg)) {
        file_put_contents($argv[1], "\n\nTicket: [$ticket]\n", FILE_APPEND);
    }
}