371 lines
12 KiB
PHP
371 lines
12 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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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namespace Symfony\Component\Console\Input;
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use Symfony\Component\Console\Exception\RuntimeException;
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/**
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* ArgvInput represents an input coming from the CLI arguments.
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*
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* Usage:
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*
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* $input = new ArgvInput();
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*
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* By default, the `$_SERVER['argv']` array is used for the input values.
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*
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* This can be overridden by explicitly passing the input values in the constructor:
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*
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* $input = new ArgvInput($_SERVER['argv']);
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*
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* If you pass it yourself, don't forget that the first element of the array
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* is the name of the running application.
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*
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* When passing an argument to the constructor, be sure that it respects
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* the same rules as the argv one. It's almost always better to use the
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* `StringInput` when you want to provide your own input.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @see http://www.gnu.org/software/libc/manual/html_node/Argument-Syntax.html
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* @see http://www.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap12.html#tag_12_02
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*/
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class ArgvInput extends Input
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{
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private $tokens;
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private $parsed;
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/**
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* @param array|null $argv An array of parameters from the CLI (in the argv format)
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* @param InputDefinition|null $definition A InputDefinition instance
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*/
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public function __construct(array $argv = null, InputDefinition $definition = null)
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{
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$argv = null !== $argv ? $argv : (isset($_SERVER['argv']) ? $_SERVER['argv'] : []);
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// strip the application name
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array_shift($argv);
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$this->tokens = $argv;
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parent::__construct($definition);
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}
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protected function setTokens(array $tokens)
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{
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$this->tokens = $tokens;
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}
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/**
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* {@inheritdoc}
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*/
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protected function parse()
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{
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$parseOptions = true;
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$this->parsed = $this->tokens;
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while (null !== $token = array_shift($this->parsed)) {
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if ($parseOptions && '' == $token) {
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$this->parseArgument($token);
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} elseif ($parseOptions && '--' == $token) {
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$parseOptions = false;
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} elseif ($parseOptions && 0 === strpos($token, '--')) {
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$this->parseLongOption($token);
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} elseif ($parseOptions && '-' === $token[0] && '-' !== $token) {
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$this->parseShortOption($token);
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} else {
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$this->parseArgument($token);
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}
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}
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}
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/**
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* Parses a short option.
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*
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* @param string $token The current token
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*/
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private function parseShortOption($token)
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{
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$name = substr($token, 1);
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if (\strlen($name) > 1) {
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if ($this->definition->hasShortcut($name[0]) && $this->definition->getOptionForShortcut($name[0])->acceptValue()) {
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// an option with a value (with no space)
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$this->addShortOption($name[0], substr($name, 1));
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} else {
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$this->parseShortOptionSet($name);
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}
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} else {
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$this->addShortOption($name, null);
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}
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}
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/**
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* Parses a short option set.
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*
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* @param string $name The current token
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*
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* @throws RuntimeException When option given doesn't exist
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*/
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private function parseShortOptionSet($name)
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{
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$len = \strlen($name);
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for ($i = 0; $i < $len; ++$i) {
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if (!$this->definition->hasShortcut($name[$i])) {
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$encoding = mb_detect_encoding($name, null, true);
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throw new RuntimeException(sprintf('The "-%s" option does not exist.', false === $encoding ? $name[$i] : mb_substr($name, $i, 1, $encoding)));
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}
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$option = $this->definition->getOptionForShortcut($name[$i]);
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if ($option->acceptValue()) {
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$this->addLongOption($option->getName(), $i === $len - 1 ? null : substr($name, $i + 1));
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break;
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} else {
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$this->addLongOption($option->getName(), null);
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}
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}
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}
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/**
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* Parses a long option.
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*
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* @param string $token The current token
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*/
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private function parseLongOption($token)
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{
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$name = substr($token, 2);
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if (false !== $pos = strpos($name, '=')) {
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if (0 === \strlen($value = substr($name, $pos + 1))) {
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// if no value after "=" then substr() returns "" since php7 only, false before
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// see https://php.net/migration70.incompatible.php#119151
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if (\PHP_VERSION_ID < 70000 && false === $value) {
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$value = '';
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}
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array_unshift($this->parsed, $value);
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}
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$this->addLongOption(substr($name, 0, $pos), $value);
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} else {
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$this->addLongOption($name, null);
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}
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}
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/**
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* Parses an argument.
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*
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* @param string $token The current token
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*
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* @throws RuntimeException When too many arguments are given
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*/
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private function parseArgument($token)
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{
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$c = \count($this->arguments);
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// if input is expecting another argument, add it
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if ($this->definition->hasArgument($c)) {
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$arg = $this->definition->getArgument($c);
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$this->arguments[$arg->getName()] = $arg->isArray() ? [$token] : $token;
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// if last argument isArray(), append token to last argument
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} elseif ($this->definition->hasArgument($c - 1) && $this->definition->getArgument($c - 1)->isArray()) {
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$arg = $this->definition->getArgument($c - 1);
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$this->arguments[$arg->getName()][] = $token;
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// unexpected argument
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} else {
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$all = $this->definition->getArguments();
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if (\count($all)) {
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throw new RuntimeException(sprintf('Too many arguments, expected arguments "%s".', implode('" "', array_keys($all))));
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}
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throw new RuntimeException(sprintf('No arguments expected, got "%s".', $token));
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}
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}
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/**
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* Adds a short option value.
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*
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* @param string $shortcut The short option key
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* @param mixed $value The value for the option
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*
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* @throws RuntimeException When option given doesn't exist
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*/
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private function addShortOption($shortcut, $value)
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{
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if (!$this->definition->hasShortcut($shortcut)) {
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throw new RuntimeException(sprintf('The "-%s" option does not exist.', $shortcut));
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}
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$this->addLongOption($this->definition->getOptionForShortcut($shortcut)->getName(), $value);
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}
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/**
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* Adds a long option value.
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*
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* @param string $name The long option key
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* @param mixed $value The value for the option
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*
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* @throws RuntimeException When option given doesn't exist
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*/
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private function addLongOption($name, $value)
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{
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if (!$this->definition->hasOption($name)) {
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throw new RuntimeException(sprintf('The "--%s" option does not exist.', $name));
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}
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$option = $this->definition->getOption($name);
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if (null !== $value && !$option->acceptValue()) {
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throw new RuntimeException(sprintf('The "--%s" option does not accept a value.', $name));
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}
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if (\in_array($value, ['', null], true) && $option->acceptValue() && \count($this->parsed)) {
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// if option accepts an optional or mandatory argument
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// let's see if there is one provided
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$next = array_shift($this->parsed);
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if ((isset($next[0]) && '-' !== $next[0]) || \in_array($next, ['', null], true)) {
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$value = $next;
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} else {
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array_unshift($this->parsed, $next);
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}
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}
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if (null === $value) {
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if ($option->isValueRequired()) {
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throw new RuntimeException(sprintf('The "--%s" option requires a value.', $name));
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}
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if (!$option->isArray() && !$option->isValueOptional()) {
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$value = true;
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}
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}
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if ($option->isArray()) {
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$this->options[$name][] = $value;
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} else {
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$this->options[$name] = $value;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getFirstArgument()
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{
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$isOption = false;
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foreach ($this->tokens as $i => $token) {
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if ($token && '-' === $token[0]) {
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if (false !== strpos($token, '=') || !isset($this->tokens[$i + 1])) {
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continue;
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}
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// If it's a long option, consider that everything after "--" is the option name.
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// Otherwise, use the last char (if it's a short option set, only the last one can take a value with space separator)
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$name = '-' === $token[1] ? substr($token, 2) : substr($token, -1);
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if (!isset($this->options[$name]) && !$this->definition->hasShortcut($name)) {
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// noop
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} elseif ((isset($this->options[$name]) || isset($this->options[$name = $this->definition->shortcutToName($name)])) && $this->tokens[$i + 1] === $this->options[$name]) {
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$isOption = true;
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}
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continue;
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}
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if ($isOption) {
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$isOption = false;
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continue;
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}
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return $token;
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}
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return null;
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}
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/**
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* {@inheritdoc}
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*/
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public function hasParameterOption($values, $onlyParams = false)
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{
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$values = (array) $values;
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foreach ($this->tokens as $token) {
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if ($onlyParams && '--' === $token) {
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return false;
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}
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foreach ($values as $value) {
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// Options with values:
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// For long options, test for '--option=' at beginning
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// For short options, test for '-o' at beginning
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$leading = 0 === strpos($value, '--') ? $value.'=' : $value;
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if ($token === $value || '' !== $leading && 0 === strpos($token, $leading)) {
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return true;
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}
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}
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}
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return false;
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}
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/**
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* {@inheritdoc}
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*/
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public function getParameterOption($values, $default = false, $onlyParams = false)
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{
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$values = (array) $values;
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$tokens = $this->tokens;
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while (0 < \count($tokens)) {
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$token = array_shift($tokens);
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if ($onlyParams && '--' === $token) {
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return $default;
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}
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foreach ($values as $value) {
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if ($token === $value) {
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return array_shift($tokens);
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}
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// Options with values:
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// For long options, test for '--option=' at beginning
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// For short options, test for '-o' at beginning
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$leading = 0 === strpos($value, '--') ? $value.'=' : $value;
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if ('' !== $leading && 0 === strpos($token, $leading)) {
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return substr($token, \strlen($leading));
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}
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}
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}
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return $default;
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}
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/**
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* Returns a stringified representation of the args passed to the command.
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*
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* @return string
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*/
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public function __toString()
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{
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$tokens = array_map(function ($token) {
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if (preg_match('{^(-[^=]+=)(.+)}', $token, $match)) {
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return $match[1].$this->escapeToken($match[2]);
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}
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if ($token && '-' !== $token[0]) {
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return $this->escapeToken($token);
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}
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return $token;
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}, $this->tokens);
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return implode(' ', $tokens);
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}
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}
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