ProcessHelper.php 4.9 KB

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  1. <?php
  2. /*
  3. * This file is part of the Symfony package.
  4. *
  5. * (c) Fabien Potencier <fabien@symfony.com>
  6. *
  7. * For the full copyright and license information, please view the LICENSE
  8. * file that was distributed with this source code.
  9. */
  10. namespace Symfony\Component\Console\Helper;
  11. use Symfony\Component\Console\Output\ConsoleOutputInterface;
  12. use Symfony\Component\Console\Output\OutputInterface;
  13. use Symfony\Component\Process\Exception\ProcessFailedException;
  14. use Symfony\Component\Process\Process;
  15. /**
  16. * The ProcessHelper class provides helpers to run external processes.
  17. *
  18. * @author Fabien Potencier <fabien@symfony.com>
  19. *
  20. * @final
  21. */
  22. class ProcessHelper extends Helper
  23. {
  24. /**
  25. * Runs an external process.
  26. *
  27. * @param array|Process $cmd An instance of Process or an array of the command and arguments
  28. * @param callable|null $callback A PHP callback to run whenever there is some
  29. * output available on STDOUT or STDERR
  30. */
  31. public function run(OutputInterface $output, $cmd, string $error = null, callable $callback = null, int $verbosity = OutputInterface::VERBOSITY_VERY_VERBOSE): Process
  32. {
  33. if (!class_exists(Process::class)) {
  34. throw new \LogicException('The ProcessHelper cannot be run as the Process component is not installed. Try running "compose require symfony/process".');
  35. }
  36. if ($output instanceof ConsoleOutputInterface) {
  37. $output = $output->getErrorOutput();
  38. }
  39. $formatter = $this->getHelperSet()->get('debug_formatter');
  40. if ($cmd instanceof Process) {
  41. $cmd = [$cmd];
  42. }
  43. if (!\is_array($cmd)) {
  44. throw new \TypeError(sprintf('The "command" argument of "%s()" must be an array or a "%s" instance, "%s" given.', __METHOD__, Process::class, get_debug_type($cmd)));
  45. }
  46. if (\is_string($cmd[0] ?? null)) {
  47. $process = new Process($cmd);
  48. $cmd = [];
  49. } elseif (($cmd[0] ?? null) instanceof Process) {
  50. $process = $cmd[0];
  51. unset($cmd[0]);
  52. } else {
  53. throw new \InvalidArgumentException(sprintf('Invalid command provided to "%s()": the command should be an array whose first element is either the path to the binary to run or a "Process" object.', __METHOD__));
  54. }
  55. if ($verbosity <= $output->getVerbosity()) {
  56. $output->write($formatter->start(spl_object_hash($process), $this->escapeString($process->getCommandLine())));
  57. }
  58. if ($output->isDebug()) {
  59. $callback = $this->wrapCallback($output, $process, $callback);
  60. }
  61. $process->run($callback, $cmd);
  62. if ($verbosity <= $output->getVerbosity()) {
  63. $message = $process->isSuccessful() ? 'Command ran successfully' : sprintf('%s Command did not run successfully', $process->getExitCode());
  64. $output->write($formatter->stop(spl_object_hash($process), $message, $process->isSuccessful()));
  65. }
  66. if (!$process->isSuccessful() && null !== $error) {
  67. $output->writeln(sprintf('<error>%s</error>', $this->escapeString($error)));
  68. }
  69. return $process;
  70. }
  71. /**
  72. * Runs the process.
  73. *
  74. * This is identical to run() except that an exception is thrown if the process
  75. * exits with a non-zero exit code.
  76. *
  77. * @param array|Process $cmd An instance of Process or a command to run
  78. * @param callable|null $callback A PHP callback to run whenever there is some
  79. * output available on STDOUT or STDERR
  80. *
  81. * @throws ProcessFailedException
  82. *
  83. * @see run()
  84. */
  85. public function mustRun(OutputInterface $output, $cmd, string $error = null, callable $callback = null): Process
  86. {
  87. $process = $this->run($output, $cmd, $error, $callback);
  88. if (!$process->isSuccessful()) {
  89. throw new ProcessFailedException($process);
  90. }
  91. return $process;
  92. }
  93. /**
  94. * Wraps a Process callback to add debugging output.
  95. */
  96. public function wrapCallback(OutputInterface $output, Process $process, callable $callback = null): callable
  97. {
  98. if ($output instanceof ConsoleOutputInterface) {
  99. $output = $output->getErrorOutput();
  100. }
  101. $formatter = $this->getHelperSet()->get('debug_formatter');
  102. return function ($type, $buffer) use ($output, $process, $callback, $formatter) {
  103. $output->write($formatter->progress(spl_object_hash($process), $this->escapeString($buffer), Process::ERR === $type));
  104. if (null !== $callback) {
  105. $callback($type, $buffer);
  106. }
  107. };
  108. }
  109. private function escapeString(string $str): string
  110. {
  111. return str_replace('<', '\\<', $str);
  112. }
  113. /**
  114. * {@inheritdoc}
  115. */
  116. public function getName(): string
  117. {
  118. return 'process';
  119. }
  120. }