Script to replace all the post-commit git hooks required by a sismo setup

checkSismoHooks.php

<?php
/**
 * Created by PhpStorm.
 * User: parsingphase
 * Date: 19/09/14
 * Time: 09:29
 */

namespace Sismo;

class Project
{

    protected $slug;
    protected $repository;

    public function __construct($slug)
    {
        $this->slug = $slug;
    }

    public function setRepository($repository)
    {
        $this->repository = $repository;
    }

    /**
     * @param mixed $slug
     * @return $this
     */
    public function setSlug($slug)
    {
        $this->slug = $slug;
        return $this;
    }

    public function __call($name, $arguments)
    {
        // ignore everything else
    }

    /**
     * @return mixed
     */
    public function getRepository()
    {
        return $this->repository;
    }

    /**
     * @return mixed
     */
    public function getSlug()
    {
        return $this->slug;
    }

}

$uid = posix_getuid();
$userInfo = posix_getpwuid($uid);
$homeDir = $userInfo['dir'];
$sismoConfigFile = $homeDir . '/.sismo/config.php';
$projects = require($sismoConfigFile);
$hostname = gethostname();

$sismoScript = '/path/to/sismo/sismo.php'; // FIXME this is the only non-self-configuring bit

foreach ($projects as $project) {
    /** @var Project $project */
    print($project->getSlug() . ': ' . $project->getRepository() . "\n");
    $commitHook = rtrim($project->getRepository(), '/') . '/.git/hooks/post-commit';
    if (file_exists($commitHook)) {
        print("\tpresent\n");
    } else {
        print("\tmissing… ");
        $ok = file_put_contents($commitHook, createCommitHook($project->getSlug(), $sismoScript, $hostname));
        if ($ok !== false) {
            print("added\n");
            chmod($commitHook, 0755);
        } else {
            print("can't add\n");
        }
    }
}

/**
 * @param $slug
 * @param $hostname
 * @return string
 */
function createCommitHook($slug, $sismoScript, $hostname = null)
{
    $template = [];
    $template[] = '#!/bin/sh';
    if ($hostname) {
        $template[] = "HOSTSPEC=$hostname";
    }
    $template[] = "SLUG=$slug";
    $template[] = ($hostname ? 'ssh -f $HOSTSPEC ' : '') .
        'php '.$sismoScript.' --quiet build $SLUG `git log -1 HEAD --pretty="%H"`';

    return join("\n", $template)."\n";
}

Working with code in composer, for example, means that repos can come & go quite frequently, and their post-commit hooks can get removed, breaking automated testing. This script reads a .sismo/config file (only if it's very simple) and replaces the hooks.