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#!/usr/bin/env php
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<?php
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/*
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* This file is part of Psy Shell.
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*
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* (c) 2012-2023 Justin Hileman
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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// Try to find an autoloader for a local psysh version.
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// We'll wrap this whole mess in a Closure so it doesn't leak any globals.
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call_user_func(function () {
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$cwd = null;
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// Find the cwd arg (if present)
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$argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : array();
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foreach ($argv as $i => $arg) {
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if ($arg === '--cwd') {
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if ($i >= count($argv) - 1) {
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fwrite(STDERR, 'Missing --cwd argument.' . PHP_EOL);
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exit(1);
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}
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$cwd = $argv[$i + 1];
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break;
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}
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if (preg_match('/^--cwd=/', $arg)) {
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$cwd = substr($arg, 6);
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break;
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}
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}
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// Or fall back to the actual cwd
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if (!isset($cwd)) {
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$cwd = getcwd();
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}
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$cwd = str_replace('\\', '/', $cwd);
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$chunks = explode('/', $cwd);
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while (!empty($chunks)) {
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$path = implode('/', $chunks);
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$prettyPath = $path;
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if (isset($_SERVER['HOME']) && $_SERVER['HOME']) {
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$prettyPath = preg_replace('/^' . preg_quote($_SERVER['HOME'], '/') . '/', '~', $path);
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}
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// Find composer.json
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if (is_file($path . '/composer.json')) {
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if ($cfg = json_decode(file_get_contents($path . '/composer.json'), true)) {
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if (isset($cfg['name']) && $cfg['name'] === 'psy/psysh') {
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// We're inside the psysh project. Let's use the local Composer autoload.
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if (is_file($path . '/vendor/autoload.php')) {
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if (realpath($path) !== realpath(__DIR__ . '/..')) {
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fwrite(STDERR, 'Using local PsySH version at ' . $prettyPath . PHP_EOL);
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}
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require $path . '/vendor/autoload.php';
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}
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return;
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}
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}
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}
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// Or a composer.lock
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if (is_file($path . '/composer.lock')) {
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if ($cfg = json_decode(file_get_contents($path . '/composer.lock'), true)) {
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foreach (array_merge($cfg['packages'], $cfg['packages-dev']) as $pkg) {
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if (isset($pkg['name']) && $pkg['name'] === 'psy/psysh') {
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// We're inside a project which requires psysh. We'll use the local Composer autoload.
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if (is_file($path . '/vendor/autoload.php')) {
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if (realpath($path . '/vendor') !== realpath(__DIR__ . '/../../..')) {
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fwrite(STDERR, 'Using local PsySH version at ' . $prettyPath . PHP_EOL);
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}
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require $path . '/vendor/autoload.php';
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}
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return;
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}
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}
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}
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}
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array_pop($chunks);
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}
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});
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// We didn't find an autoloader for a local version, so use the autoloader that
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// came with this script.
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if (!class_exists('Psy\Shell')) {
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/* <<< */
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if (is_file(__DIR__ . '/../vendor/autoload.php')) {
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require __DIR__ . '/../vendor/autoload.php';
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} elseif (is_file(__DIR__ . '/../../../autoload.php')) {
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require __DIR__ . '/../../../autoload.php';
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} else {
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fwrite(STDERR, 'PsySH dependencies not found, be sure to run `composer install`.' . PHP_EOL);
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fwrite(STDERR, 'See https://getcomposer.org to get Composer.' . PHP_EOL);
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exit(1);
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}
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/* >>> */
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}
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// If the psysh binary was included directly, assume they just wanted an
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// autoloader and bail early.
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//
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// Keep this PHP 5.3 and 5.4 code around for a while in case someone is using a
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// globally installed psysh as a bin launcher for older local versions.
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if (version_compare(PHP_VERSION, '5.3.6', '<')) {
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$trace = debug_backtrace();
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} elseif (version_compare(PHP_VERSION, '5.4.0', '<')) {
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$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
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} else {
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$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
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}
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if (Psy\Shell::isIncluded($trace)) {
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unset($trace);
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return;
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}
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// Clean up after ourselves.
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unset($trace);
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// If the local version is too old, we can't do this
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if (!function_exists('Psy\bin')) {
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$argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : array();
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$first = array_shift($argv);
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if (preg_match('/php(\.exe)?$/', $first)) {
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array_shift($argv);
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}
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array_unshift($argv, 'vendor/bin/psysh');
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fwrite(STDERR, 'A local PsySH dependency was found, but it cannot be loaded. Please update to' . PHP_EOL);
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fwrite(STDERR, 'the latest version, or run the local copy directly, e.g.:' . PHP_EOL);
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fwrite(STDERR, PHP_EOL);
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fwrite(STDERR, ' ' . implode(' ', $argv) . PHP_EOL);
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exit(1);
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}
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// And go!
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call_user_func(Psy\bin());
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