Plugin installer script

plugins.json

{
    "debug-bar"                     : "0.8",
    "debug-bar-cron"                : "0.1.2",
    "developer"                     : "1.0.0",
    "jetpack"                       : "1.7",
    "limit-login-attempts"          : "1.7.1",
    "log-deprecated-notices"        : "0.2",
    "monkeyman-rewrite-analyzer"    : "1.0",
    "monster-widget"                : "0.1",
    "more-fields"                   : "2.1",
    "regenerate-thumbnails"         : "2.2.3",
    "rewrite-rules-inspector"       : "1.0",
    "search-everything"             : "6.9.4.1",
    "tinymce-advanced"              : "3.4.9",
    "vip-scanner"                   : "0.2",
    "white-label-cms"               : "1.5",
    "wordpress-beta-tester"         : "0.95",
    "wordpress-file-monitor-plus"   : "2.2",
    "wordpress-firewall-2"          : "1.3",
    "wordpress-importer"            : "0.6",
    "wordpress-seo"                 : "1.2.7"
}

wp-plugin-installer.php

#!/usr/bin/env php
<?php
error_reporting(E_ALL);

$plugins_file = getcwd() . '/plugins.json';

if (!file_exists($plugins_file))
    die("Cannot find a plugins.json file.\n\n");

$plugins_file_contents = file_get_contents($plugins_file);
$plugins = json_decode($plugins_file_contents);

if (!$plugins)
    die("Could not parse plugins.json file.\n\n");

print "plugins.json loaded and parsed correctly.\n";

$plugins = (get_object_vars($plugins));

foreach ($plugins as $plugin => $version)
{
    echo "\nAttempting to download " . $plugin . "\n\n";
    passthru('svn export --force http://plugins.svn.wordpress.org/' . $plugin . '/tags/' . $version . '/ ' . $plugin);
}