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psysh
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psysh
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#!/usr/bin/env php
<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2023 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 {
$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
}
if (Psy\Shell::isIncluded($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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psysh (4 KB)

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