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psysh 4.2KB

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  1. #!/usr/bin/env php
  2. <?php
  3. /*
  4. * This file is part of Psy Shell.
  5. *
  6. * (c) 2012-2017 Justin Hileman
  7. *
  8. * For the full copyright and license information, please view the LICENSE
  9. * file that was distributed with this source code.
  10. */
  11. // Try to find an autoloader for a local psysh version.
  12. // We'll wrap this whole mess in a Closure so it doesn't leak any globals.
  13. call_user_func(function () {
  14. $cwd = null;
  15. // Find the cwd arg (if present)
  16. $argv = isset($_SERVER['argv']) ? $_SERVER['argv'] : array();
  17. foreach ($argv as $i => $arg) {
  18. if ($arg === '--cwd') {
  19. if ($i >= count($argv) - 1) {
  20. echo 'Missing --cwd argument.' . PHP_EOL;
  21. exit(1);
  22. }
  23. $cwd = $argv[$i + 1];
  24. break;
  25. }
  26. if (preg_match('/^--cwd=/', $arg)) {
  27. $cwd = substr($arg, 6);
  28. break;
  29. }
  30. }
  31. // Or fall back to the actual cwd
  32. if (!isset($cwd)) {
  33. $cwd = getcwd();
  34. }
  35. $cwd = str_replace('\\', '/', $cwd);
  36. $chunks = explode('/', $cwd);
  37. while (!empty($chunks)) {
  38. $path = implode('/', $chunks);
  39. // Find composer.json
  40. if (is_file($path . '/composer.json')) {
  41. if ($cfg = json_decode(file_get_contents($path . '/composer.json'), true)) {
  42. if (isset($cfg['name']) && $cfg['name'] === 'psy/psysh') {
  43. // We're inside the psysh project. Let's use the local
  44. // Composer autoload.
  45. if (is_file($path . '/vendor/autoload.php')) {
  46. require $path . '/vendor/autoload.php';
  47. }
  48. return;
  49. }
  50. }
  51. }
  52. // Or a composer.lock
  53. if (is_file($path . '/composer.lock')) {
  54. if ($cfg = json_decode(file_get_contents($path . '/composer.lock'), true)) {
  55. foreach (array_merge($cfg['packages'], $cfg['packages-dev']) as $pkg) {
  56. if (isset($pkg['name']) && $pkg['name'] === 'psy/psysh') {
  57. // We're inside a project which requires psysh. We'll
  58. // use the local Composer autoload.
  59. if (is_file($path . '/vendor/autoload.php')) {
  60. require $path . '/vendor/autoload.php';
  61. }
  62. return;
  63. }
  64. }
  65. }
  66. }
  67. array_pop($chunks);
  68. }
  69. });
  70. // We didn't find an autoloader for a local version, so use the autoloader that
  71. // came with this script.
  72. if (!class_exists('Psy\Shell')) {
  73. /* <<< */
  74. if (is_file(__DIR__ . '/../vendor/autoload.php')) {
  75. require __DIR__ . '/../vendor/autoload.php';
  76. } elseif (is_file(__DIR__ . '/../../../autoload.php')) {
  77. require __DIR__ . '/../../../autoload.php';
  78. } else {
  79. echo 'PsySH dependencies not found, be sure to run `composer install`.' . PHP_EOL;
  80. echo 'See https://getcomposer.org to get Composer.' . PHP_EOL;
  81. exit(1);
  82. }
  83. /* >>> */
  84. }
  85. // If the psysh binary was included directly, assume they just wanted an
  86. // autoloader and bail early.
  87. //
  88. // Keep this PHP 5.3 code around for a while in case someone is using a globally
  89. // installed psysh as a bin launcher for older local versions.
  90. if (version_compare(PHP_VERSION, '5.3.6', '<')) {
  91. $trace = debug_backtrace();
  92. } elseif (version_compare(PHP_VERSION, '5.4.0', '<')) {
  93. $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
  94. } else {
  95. $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
  96. }
  97. if (Psy\Shell::isIncluded($trace)) {
  98. unset($trace);
  99. return;
  100. }
  101. // Clean up after ourselves.
  102. unset($trace);
  103. // If the local version is too old, we can't do this
  104. if (!function_exists('Psy\bin')) {
  105. $argv = $_SERVER['argv'];
  106. $first = array_shift($argv);
  107. if (preg_match('/php(\.exe)?$/', $first)) {
  108. array_shift($argv);
  109. }
  110. array_unshift($argv, 'vendor/bin/psysh');
  111. echo 'A local PsySH dependency was found, but it cannot be loaded. Please update to' . PHP_EOL;
  112. echo 'the latest version, or run the local copy directly, e.g.:' . PHP_EOL;
  113. echo PHP_EOL;
  114. echo ' ' . implode(' ', $argv) . PHP_EOL;
  115. exit(1);
  116. }
  117. // And go!
  118. call_user_func(Psy\bin());