init

#!/usr/bin/env php
<?php
/**
 * Yii Application Initialization Tool
 *
 * In order to run in non-interactive mode:
 *
 * init --env=Development --overwrite=n
 *
 * @author Alexander Makarov <sam@rmcreative.ru>
 *
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

if (!extension_loaded('mcrypt')) {
    die('The mcrypt PHP extension is required by Yii2.');
}
$params = getParams();
$root = str_replace('\\', '/', __DIR__);

echo "\n  Initialize the application? [yes|no] ";
$answer = trim(fgets(STDIN));
if (strncasecmp($answer, 'y', 1)) {
    echo "\n  Quit initialization.\n";
    exit(0);
}
$env = [
    'setWritable' => [
        'backend/runtime',
        'backend/web/assets',
        'frontend/runtime',
        'frontend/web/assets',
    ],
    'setExecutable' => [
        'yii',
    ],
    'setCookieValidationKey' => [
        '.env',
    ],
];

echo "\n  Start initialization ...\n\n";

//copy .env file
copyFile($root, '.env.example', '.env', false, $params);

$callbacks = ['setCookieValidationKey', 'setWritable', 'setExecutable'];
foreach ($callbacks as $callback) {
    if (!empty($env[$callback])) {
        $callback($root, $env[$callback]);
    }
}

echo "\n  ... initialization completed.\n\n";

function copyFile($root, $source, $target, $all, $params)
{
    if (!is_file($root . '/' . $source)) {
        echo "       skip $target ($source not exist)\n";
        return true;
    }
    if (is_file($root . '/' . $target)) {
        if (file_get_contents($root . '/' . $source) === file_get_contents($root . '/' . $target)) {
            echo "  unchanged $target\n";
            return true;
        }
        if ($all) {
            echo "  overwrite $target\n";
        } else {
            echo "      exist $target\n";
            echo "            ...overwrite? [Yes|No|All|Quit] ";


            $answer = !empty($params['overwrite']) ? $params['overwrite'] : trim(fgets(STDIN));
            if (!strncasecmp($answer, 'q', 1)) {
                return false;
            } else {
                if (!strncasecmp($answer, 'y', 1)) {
                    echo "  overwrite $target\n";
                } else {
                    if (!strncasecmp($answer, 'a', 1)) {
                        echo "  overwrite $target\n";
                        $all = true;
                    } else {
                        echo "       skip $target\n";
                        return true;
                    }
                }
            }
        }
        file_put_contents($root . '/' . $target, file_get_contents($root . '/' . $source));
        return true;
    }
    echo "   generate $target\n";
    @mkdir(dirname($root . '/' . $target), 0777, true);
    file_put_contents($root . '/' . $target, file_get_contents($root . '/' . $source));
    return true;
}

function setWritable($root, $paths)
{
    foreach ($paths as $writable) {
        echo "      chmod 0777 $writable\n";
        @chmod("$root/$writable", 0777);
    }
}

function getParams()
{
    $rawParams = [];
    if (isset($_SERVER['argv'])) {
        $rawParams = $_SERVER['argv'];
        array_shift($rawParams);
    }

    $params = [];
    foreach ($rawParams as $param) {
        if (preg_match('/^--(\w+)(=(.*))?$/', $param, $matches)) {
            $name = $matches[1];
            $params[$name] = isset($matches[3]) ? $matches[3] : true;
        } else {
            $params[] = $param;
        }
    }
    return $params;
}

function setExecutable($root, $paths)
{
    foreach ($paths as $executable) {
        echo "      chmod 0755 $executable\n";
        @chmod("$root/$executable", 0755);
    }
}

function setCookieValidationKey($root, $paths)
{
    foreach ($paths as $file) {
        echo "   generate cookie validation key in $file\n";
        $file = $root . '/' . $file;
        $length = 32;
        $content = preg_replace_callback('/(<generated_cookie_validation_key>)/', function($matches) use ($length) {
            $bytes = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
            $key = strtr(substr(base64_encode($bytes), 0, $length), '+/=', '_-.');
            return $key;
        }, file_get_contents($file));

        file_put_contents($file, $content);
    }
}

function createSymlink($links)
{
    foreach ($links as $link => $target) {
        echo "    symlink $target as $link\n";
        if (!is_link($link)) {
            symlink($target, $link);
        }
    }
}