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- #!/usr/bin/env php
- <?php
- /*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- // Try to find an autoloader for a local psysh version.
- // We'll wrap this whole mess in a Closure so it doesn't leak any globals.
- call_user_func(function () {
- $cwd = null;
- // Find the cwd arg (if present)
- $argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : array();
- foreach ($argv as $i => $arg) {
- if ($arg === '--cwd') {
- if ($i >= count($argv) - 1) {
- echo 'Missing --cwd argument.' . PHP_EOL;
- exit(1);
- }
- $cwd = $argv[$i + 1];
- break;
- }
- if (preg_match('/^--cwd=/', $arg)) {
- $cwd = substr($arg, 6);
- break;
- }
- }
- // Or fall back to the actual cwd
- if (!isset($cwd)) {
- $cwd = getcwd();
- }
- $cwd = str_replace('\\', '/', $cwd);
- $chunks = explode('/', $cwd);
- while (!empty($chunks)) {
- $path = implode('/', $chunks);
- // Find composer.json
- if (is_file($path . '/composer.json')) {
- if ($cfg = json_decode(file_get_contents($path . '/composer.json'), true)) {
- if (isset($cfg['name']) && $cfg['name'] === 'psy/psysh') {
- // We're inside the psysh project. Let's use the local
- // Composer autoload.
- if (is_file($path . '/vendor/autoload.php')) {
- require $path . '/vendor/autoload.php';
- }
- return;
- }
- }
- }
- // Or a composer.lock
- if (is_file($path . '/composer.lock')) {
- if ($cfg = json_decode(file_get_contents($path . '/composer.lock'), true)) {
- foreach (array_merge($cfg['packages'], $cfg['packages-dev']) as $pkg) {
- if (isset($pkg['name']) && $pkg['name'] === 'psy/psysh') {
- // We're inside a project which requires psysh. We'll
- // use the local Composer autoload.
- if (is_file($path . '/vendor/autoload.php')) {
- require $path . '/vendor/autoload.php';
- }
- return;
- }
- }
- }
- }
- array_pop($chunks);
- }
- });
- // We didn't find an autoloader for a local version, so use the autoloader that
- // came with this script.
- if (!class_exists('Psy\Shell')) {
- /* <<< */
- if (is_file(__DIR__ . '/../vendor/autoload.php')) {
- require __DIR__ . '/../vendor/autoload.php';
- } elseif (is_file(__DIR__ . '/../../../autoload.php')) {
- require __DIR__ . '/../../../autoload.php';
- } else {
- echo 'PsySH dependencies not found, be sure to run `composer install`.' . PHP_EOL;
- echo 'See https://getcomposer.org to get Composer.' . PHP_EOL;
- exit(1);
- }
- /* >>> */
- }
- // If the psysh binary was included directly, assume they just wanted an
- // autoloader and bail early.
- //
- // Keep this PHP 5.3 code around for a while in case someone is using a globally
- // installed psysh as a bin launcher for older local versions.
- if (version_compare(PHP_VERSION, '5.3.6', '<')) {
- $trace = debug_backtrace();
- } elseif (version_compare(PHP_VERSION, '5.4.0', '<')) {
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
- } else {
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
- }
- if (Psy\Shell::isIncluded($trace)) {
- unset($trace);
- return;
- }
- // Clean up after ourselves.
- unset($trace);
- // If the local version is too old, we can't do this
- if (!function_exists('Psy\bin')) {
- $argv = $_SERVER['argv'];
- $first = array_shift($argv);
- if (preg_match('/php(\.exe)?$/', $first)) {
- array_shift($argv);
- }
- array_unshift($argv, 'vendor/bin/psysh');
- echo 'A local PsySH dependency was found, but it cannot be loaded. Please update to' . PHP_EOL;
- echo 'the latest version, or run the local copy directly, e.g.:' . PHP_EOL;
- echo PHP_EOL;
- echo ' ' . implode(' ', $argv) . PHP_EOL;
- exit(1);
- }
- // And go!
- call_user_func(Psy\bin());
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