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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) {
 
-                 fwrite(STDERR, '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);
 
-         $prettyPath = $path;
 
-         if (isset($_SERVER['HOME']) && $_SERVER['HOME']) {
 
-             $prettyPath = preg_replace('/^' . preg_quote($_SERVER['HOME'], '/') . '/', '~', $path);
 
-         }
 
-         // 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')) {
 
-                         if (realpath($path) !== realpath(__DIR__ . '/..')) {
 
-                             fwrite(STDERR, 'Using local PsySH version at ' . $prettyPath . PHP_EOL);
 
-                         }
 
-                         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')) {
 
-                             if (realpath($path . '/vendor') !== realpath(__DIR__ . '/../../..')) {
 
-                                 fwrite(STDERR, 'Using local PsySH version at ' . $prettyPath . PHP_EOL);
 
-                             }
 
-                             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 {
 
-         fwrite(STDERR, 'PsySH dependencies not found, be sure to run `composer install`.' . PHP_EOL);
 
-         fwrite(STDERR, '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 and 5.4 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')) {
 
-     $argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : array();
 
-     $first = array_shift($argv);
 
-     if (preg_match('/php(\.exe)?$/', $first)) {
 
-         array_shift($argv);
 
-     }
 
-     array_unshift($argv, 'vendor/bin/psysh');
 
-     fwrite(STDERR, 'A local PsySH dependency was found, but it cannot be loaded. Please update to' . PHP_EOL);
 
-     fwrite(STDERR, 'the latest version, or run the local copy directly, e.g.:' . PHP_EOL);
 
-     fwrite(STDERR, PHP_EOL);
 
-     fwrite(STDERR, '    ' . implode(' ', $argv) . PHP_EOL);
 
-     exit(1);
 
- }
 
- // And go!
 
- call_user_func(Psy\bin());
 
 
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