--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console;
+
+use Symfony\Component\Console\Exception\RuntimeException;
+use Symfony\Component\Console\Input\StringInput;
+use Symfony\Component\Console\Output\ConsoleOutput;
+use Symfony\Component\Process\ProcessBuilder;
+use Symfony\Component\Process\PhpExecutableFinder;
+
+/**
+ * A Shell wraps an Application to add shell capabilities to it.
+ *
+ * Support for history and completion only works with a PHP compiled
+ * with readline support (either --with-readline or --with-libedit)
+ *
+ * @deprecated since version 2.8, to be removed in 3.0.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Martin HasoĊ <martin.hason@gmail.com>
+ */
+class Shell
+{
+ private $application;
+ private $history;
+ private $output;
+ private $hasReadline;
+ private $processIsolation = false;
+
+ /**
+ * Constructor.
+ *
+ * If there is no readline support for the current PHP executable
+ * a \RuntimeException exception is thrown.
+ *
+ * @param Application $application An application instance
+ */
+ public function __construct(Application $application)
+ {
+ @trigger_error('The '.__CLASS__.' class is deprecated since Symfony 2.8 and will be removed in 3.0.', E_USER_DEPRECATED);
+
+ $this->hasReadline = function_exists('readline');
+ $this->application = $application;
+ $this->history = getenv('HOME').'/.history_'.$application->getName();
+ $this->output = new ConsoleOutput();
+ }
+
+ /**
+ * Runs the shell.
+ */
+ public function run()
+ {
+ $this->application->setAutoExit(false);
+ $this->application->setCatchExceptions(true);
+
+ if ($this->hasReadline) {
+ readline_read_history($this->history);
+ readline_completion_function(array($this, 'autocompleter'));
+ }
+
+ $this->output->writeln($this->getHeader());
+ $php = null;
+ if ($this->processIsolation) {
+ $finder = new PhpExecutableFinder();
+ $php = $finder->find();
+ $this->output->writeln(<<<'EOF'
+<info>Running with process isolation, you should consider this:</info>
+ * each command is executed as separate process,
+ * commands don't support interactivity, all params must be passed explicitly,
+ * commands output is not colorized.
+
+EOF
+ );
+ }
+
+ while (true) {
+ $command = $this->readline();
+
+ if (false === $command) {
+ $this->output->writeln("\n");
+
+ break;
+ }
+
+ if ($this->hasReadline) {
+ readline_add_history($command);
+ readline_write_history($this->history);
+ }
+
+ if ($this->processIsolation) {
+ $pb = new ProcessBuilder();
+
+ $process = $pb
+ ->add($php)
+ ->add($_SERVER['argv'][0])
+ ->add($command)
+ ->inheritEnvironmentVariables(true)
+ ->getProcess()
+ ;
+
+ $output = $this->output;
+ $process->run(function ($type, $data) use ($output) {
+ $output->writeln($data);
+ });
+
+ $ret = $process->getExitCode();
+ } else {
+ $ret = $this->application->run(new StringInput($command), $this->output);
+ }
+
+ if (0 !== $ret) {
+ $this->output->writeln(sprintf('<error>The command terminated with an error status (%s)</error>', $ret));
+ }
+ }
+ }
+
+ /**
+ * Returns the shell header.
+ *
+ * @return string The header string
+ */
+ protected function getHeader()
+ {
+ return <<<EOF
+
+Welcome to the <info>{$this->application->getName()}</info> shell (<comment>{$this->application->getVersion()}</comment>).
+
+At the prompt, type <comment>help</comment> for some help,
+or <comment>list</comment> to get a list of available commands.
+
+To exit the shell, type <comment>^D</comment>.
+
+EOF;
+ }
+
+ /**
+ * Renders a prompt.
+ *
+ * @return string The prompt
+ */
+ protected function getPrompt()
+ {
+ // using the formatter here is required when using readline
+ return $this->output->getFormatter()->format($this->application->getName().' > ');
+ }
+
+ protected function getOutput()
+ {
+ return $this->output;
+ }
+
+ protected function getApplication()
+ {
+ return $this->application;
+ }
+
+ /**
+ * Tries to return autocompletion for the current entered text.
+ *
+ * @param string $text The last segment of the entered text
+ *
+ * @return bool|array A list of guessed strings or true
+ */
+ private function autocompleter($text)
+ {
+ $info = readline_info();
+ $text = substr($info['line_buffer'], 0, $info['end']);
+
+ if ($info['point'] !== $info['end']) {
+ return true;
+ }
+
+ // task name?
+ if (false === strpos($text, ' ') || !$text) {
+ return array_keys($this->application->all());
+ }
+
+ // options and arguments?
+ try {
+ $command = $this->application->find(substr($text, 0, strpos($text, ' ')));
+ } catch (\Exception $e) {
+ return true;
+ }
+
+ $list = array('--help');
+ foreach ($command->getDefinition()->getOptions() as $option) {
+ $list[] = '--'.$option->getName();
+ }
+
+ return $list;
+ }
+
+ /**
+ * Reads a single line from standard input.
+ *
+ * @return string The single line from standard input
+ */
+ private function readline()
+ {
+ if ($this->hasReadline) {
+ $line = readline($this->getPrompt());
+ } else {
+ $this->output->write($this->getPrompt());
+ $line = fgets(STDIN, 1024);
+ $line = (false === $line || '' === $line) ? false : rtrim($line);
+ }
+
+ return $line;
+ }
+
+ public function getProcessIsolation()
+ {
+ return $this->processIsolation;
+ }
+
+ public function setProcessIsolation($processIsolation)
+ {
+ $this->processIsolation = (bool) $processIsolation;
+
+ if ($this->processIsolation && !class_exists('Symfony\\Component\\Process\\Process')) {
+ throw new RuntimeException('Unable to isolate processes as the Symfony Process Component is not installed.');
+ }
+ }
+}
projects / yaffs-website / blobdiff