Pull Request Builder: PHP Script which triggers Ansible Tower

github_hook.php

$payload = $_POST['payload'];
$json    = json_decode($payload);

if (isset($json->action)) {
    $action   = $json->action;
    $prNumber = $json->pull_request->number;
    
    switch ($action) {
        case 'opened':
            exec_script('scripts/build_pr.sh', array($prNumber, true));
            break;
        case 'synchronize':
            exec_script('scripts/build_pr.sh', array($prNumber));
            break;
        case 'closed':
            exec_script('scripts/remove_pr.sh', array($prNumber));
            break;
    }
} else {
    if ($ref = $json->ref) {
        if (preg_match('{/(v[0-9a-zA-Z]+\.[0-9a-zA-Z]+\..+)$}', $ref, $matches)) {
            $version = $matches[1];
            exec_script('scripts/build_release.sh', array($version));
        }
    }
}