Script to generate packages.json of PHPUnit + dependencies

packages_phpunit.php

<?php
/**
 * Generates a package JSON that allows to install phpunit + dependencies
 * from versions 3.5.12 up to now.
 *
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 *
 * @example
 *
 *   {
 *       "repositories": {
 *           "testing": {
 *               "composer": {
 *                   "url": "http://localhost/"
 *               }
 *           },
 *           "packagist": false
 *       },
 *       "require": {
 *           "phpunit/phpunit": "3.5.15"
 *       }
 *   }
 *
 * Missing: There is no binary support here, since PHPUnit
 * relies on the include path by default and I havent implemented
 * a way to easily "guess" the shortest autoload path from
 * the package.xml yet, you cannot use composers autoload.
 *
 * A solution would use set_include_path() for all the
 * phpunit repos and then include vendor/phpunit/phpunit/phpunit.php
 *
 *   <?php
 *   $path = __DIR__ . "/vendor/phpunit";
 *   foreach (scandir($path) as $file) {
 *       $file = $path . '/' . $file;
 *       if ($file != "." && $file != ".." && is_dir($file)) {
 *           set_include_path(get_include_path() . PATH_SEPARATOR . realpath($file));
 *       }
 *   }
 *   require_once $path ."/phpunit/phpunit.php";
 */

$tagsUrl = "https://api.github.com/repos/%s/tags";
$packagesXmlUrl = "https://raw.github.com/%s/%s/package.xml";
$repositoryUrl = "https://github.com/%s";
$downloadUrl = "http://github.com/%s/zipball/%s";

$repositories = array(
    "PHPUnit" => "sebastianbergmann/phpunit",
    "PHP_CodeCoverage" => "sebastianbergmann/php-code-coverage",
    "PHP_Timer" => "sebastianbergmann/php-timer",
    "DbUnit" => "sebastianbergmann/dbunit",
    "PHP_TokenStream" => "sebastianbergmann/php-token-stream",
    "Text_Template" => "sebastianbergmann/php-text-template",
    "PHPUnit_MockObject" => "sebastianbergmann/phpunit-mock-objects",
    "File_Iterator" => "sebastianbergmann/php-file-iterator",
);

$packages = array();
foreach ($repositories as $packageName => $repository) {
    $tagUrl = sprintf($tagsUrl, $repository);
    $data = json_decode(file_get_contents($tagUrl), true);

    $package = array(
        "type" => "library",
        "repository" => sprintf($repositoryUrl, $repository),
        "name" => 'phpunit/'.strtolower($packageName),
        "versions" => array(),
    );

    foreach ($data as $version) {
        $packageXmlUrl = sprintf($packagesXmlUrl, $repository, $version['commit']['sha']);
        $versionName = $version['name'];
        $xml = file_get_contents($packageXmlUrl);

        if ($packageName == "PHPUnit" && version_compare($versionName, "3.5.12") < 0) {
            continue;
        }

        $packageVersion = array(
            'name' => 'phpunit/' . strtolower($packageName),
            'dist' => array(
                'url' => sprintf($downloadUrl, $repository, $versionName),
                'type' => 'zip',
            ),
            'type' => 'library',
            'version' => $versionName,
        );

        $dom = new DOMDocument("1.0", "UTF-8");
        $dom->loadXml($xml);

        $xpath = new DOMXpath($dom);
        $rootNamespace = $dom->lookupNamespaceUri($dom->namespaceURI);
        $xpath->registerNamespace('x', $rootNamespace);

        foreach ($xpath->evaluate("//x:dependencies/x:required/x:package") as $dependency) {
            $dependency = array(
                'name' => getSingleSubNodeValue($dependency, 'name'),
                'version' => getSingleSubNodeValue($dependency, 'min'),
            );
            if (isset($repositories[$dependency['name']])) {
                $packageVersion['require']['phpunit/'.strtolower($dependency['name'])] = '=' . $dependency['version']; // TODO: Maybe use = instead of >=?
            }
        }
        $package['versions'][] = $packageVersion;
    }
    $packages["phpunit/".strtolower($packageName)] = $package;
}
echo json_encode($packages);

function getSingleSubNodeValue($el, $name)
{
    return $el->getElementsByTagName($name)->item(0)->nodeValue;
}

This is not working yet, just wanted to get it out there.

Thanks for sharing. That an a .phar should get rid of pear for pretty much anyone that doesn't want to deal with pear :)