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

/*
 * This file is part of the Symfony Standard Edition.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

set_time_limit(0);

$rootDir = dirname(__DIR__);
$vendorDir = $rootDir.'/vendor';

array_shift($argv);
if (!isset($argv[0])) {
    echo(<<<EOF
Symfony2 vendors script management.

Specify a command to run:

    install: install vendors as specified in deps or deps.lock (recommended)
    update:  update vendors to their latest versions (as specified in deps)
    lock:    lock vendors to their current versions


EOF
    );
    exit(1);
}

if (!in_array($command = array_shift($argv), array('install', 'update', 'lock'))) {
    echo(sprintf('Command "%s" does not exist.', $command).PHP_EOL);
    exit(1);
}

/*
 * Check wether this project is based on the Standard Edition that was
 * shipped with vendors or not.
 */
if (is_dir($vendorDir.'/symfony') && !is_dir($vendorDir.'/symfony/.git') && !in_array('--reinstall', $argv)) {
    echo(<<<EOF
Your project seems to be based on a Standard Edition that includes vendors.

Try to run ./bin/vendors install --reinstall


EOF
    );
    exit(1);
}

if (!is_dir($vendorDir)) {
    mkdir($vendorDir, 0777, true);
}

// versions
$versions = array();
if ('install' === $command && file_exists($rootDir.'/deps.lock')) {
    foreach (file($rootDir.'/deps.lock', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
        $parts = array_values(array_filter(explode(' ', $line)));
        if (2 !== count($parts)) {
            echo(sprintf('The deps version file is not valid (near "%s")', $line).PHP_EOL);
            exit(1);
        }
        $versions[$parts[0]] = $parts[1];
    }
}

$newversions = array();
$deps = parse_ini_file($rootDir.'/deps', true, INI_SCANNER_RAW);
if (false === $deps) {
    echo('The deps file is not valid ini syntax. Perhaps missing a trailing newline?'.PHP_EOL);
    exit(1);
}
foreach ($deps as $name => $dep) {
    $dep = array_map('trim', $dep);

    // install dir
    $installDir = isset($dep['target']) ? $vendorDir.'/'.$dep['target'] : $vendorDir.'/'.$name;
    if (in_array('--reinstall', $argv) && realpath($installDir)) {
        if (defined('PHP_WINDOWS_VERSION_BUILD')) {
            system(sprintf('rmdir /S /Q %s', escapeshellarg(realpath($installDir))));
        } else {
            system(sprintf('rm -rf %s', escapeshellarg($installDir)));
        }
        clearstatcache();
    }

    if ('install' === $command || 'update' === $command) {
        echo PHP_EOL.'> Installing/Updating '.$name.PHP_EOL;

        // url
        if (!isset($dep['git'])) {
            echo(sprintf('The "git" value for the "%s" dependency must be set.', $name).PHP_EOL);
            exit(1);
        }
        $url = $dep['git'];

        if ('update' === $command && is_dir($installDir)) {
            ob_start();
            system(sprintf('cd %s && git config --get remote.origin.url', escapeshellarg($installDir)));
            $current_url = trim(ob_get_clean());
            if ($current_url !== $url) {
                if (PHP_OS == 'WINNT') {
                    system(sprintf('rmdir /S /Q %s', escapeshellarg(realpath($installDir))));
                } else {
                    system(sprintf('rm -rf %s', escapeshellarg($installDir)));
                }
                clearstatcache();
            }
        }

        if (!is_dir($installDir)) {
            system(sprintf('git clone %s %s', escapeshellarg($url), escapeshellarg($installDir)));
        }

        // revision
        if (isset($versions[$name])) {
            $rev = $versions[$name];
        } else {
            $rev = isset($dep['version']) ? $dep['version'] : 'origin/HEAD';
        }

        $status = system(sprintf('cd %s && git status --porcelain', escapeshellarg($installDir)));
        if (!empty($status)) {
            echo(sprintf('"%s" has local modifications. Please revert or commit/push them before running this command again.', $name).PHP_EOL);
            exit(1);
        }
        $current_rev = system(sprintf('cd %s && git rev-list --max-count=1 HEAD', escapeshellarg($installDir)));
        if ($current_rev === $rev) {
            continue;
        }

        system(sprintf('cd %s && git fetch origin && git reset --hard %s', escapeshellarg($installDir), escapeshellarg($rev)));
    }

    if ('update' === $command || 'lock' === $command) {
        ob_start();
        system(sprintf('cd %s && git log -n 1 --format=%%H', escapeshellarg($installDir)));
        $newversion = trim(ob_get_clean());

        ob_start();
        system(sprintf('cd %s && git name-rev --tags --name-only %s', escapeshellarg($installDir), $newversion));
        // remove trailing ^0 from tags, those are the tags themselves
        $niceversion = preg_replace('/\^0$/', '', trim(ob_get_clean()));

        // undefined is returned in case no name-rev could be found
        if ('undefined' !== $niceversion) {
            $newversions[] = $name.' '.$niceversion;
        } else {
            $newversions[] = $name.' '.$newversion;
        }
    }
}

// update?
if ('update' === $command || 'lock' === $command) {
    echo PHP_EOL.'> Updating deps.lock'.PHP_EOL;

    file_put_contents($rootDir.'/deps.lock', implode("\n", $newversions)."\n");
}

// php on windows can't use the shebang line from system()
$interpreter = defined('PHP_WINDOWS_VERSION_BUILD') ? 'php.exe' : '';

// Update the bootstrap files
system(sprintf('%s %s %s', $interpreter, escapeshellarg($rootDir.'/vendor/bundles/Sensio/Bundle/DistributionBundle/Resources/bin/build_bootstrap.php'), escapeshellarg($rootDir)));

// Update assets
system(sprintf('%s %s assets:install %s', $interpreter, escapeshellarg($rootDir.'/app/console'), escapeshellarg($rootDir.'/web/')));

// Remove the cache
system(sprintf('%s %s cache:clear --no-warmup', $interpreter, escapeshellarg($rootDir.'/app/console')));
