mirror of
https://github.com/kamilwylegala/cakephp2-php8.git
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420 lines
No EOL
12 KiB
PHP
420 lines
No EOL
12 KiB
PHP
<?php
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/**
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* ConsoleOptionParser file
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*
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* PHP 5
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.console
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* @since CakePHP(tm) v 2.0
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* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
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*/
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/**
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* Handles parsing the ARGV in the command line and provides support
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* for GetOpt compatible option definition. Provides a builder pattern implementation
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* for creating shell option parsers.
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*
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* @package cake
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* @subpackage cake.cake.console
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*/
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class ConsoleOptionParser {
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/**
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* Description text - displays before options when help is generated
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*
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* @see ConsoleOptionParser::description()
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* @var string
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*/
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protected $_description = null;
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/**
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* Epilog text - displays after options when help is generated
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*
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* @see ConsoleOptionParser::epilog()
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* @var string
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*/
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protected $_epilog = null;
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/**
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* Option definitions.
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*
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* @see ConsoleOptionParser::addOption()
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* @var array
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*/
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protected $_options = array();
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/**
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* Map of short -> long options, generated when using addOption()
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*
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* @var string
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*/
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protected $_shortOptions = array();
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/**
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* Positional argument definitions.
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*
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* @see ConsoleOptionParser::addArgument()
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* @var array
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*/
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protected $_args = array();
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/**
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* Construct an OptionParser so you can define its behavior
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*
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* ### Options
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*
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* Named arguments come in two forms, long and short. Long arguments are preceeded
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* by two - and give a more verbose option name. i.e. `--version`. Short arguments are
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* preceeded by one - and are only one character long. They usually match with a long option,
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* and provide a more terse alternative.
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*
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* #### Using Options
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*
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* Options can be defined with both long and short forms. By using `$parser->addOption()`
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* you can define new options. The name of the option is used as its long form, and you
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* can supply an additional short form, with the `short` option.
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*
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* Calling options can be done using syntax similar to most *nix command line tools. Long options
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* cane either include an `=` or leave it out.
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*
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* `cake myshell command --connection default --name=something`
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*
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* Short options can be defined singally or in groups.
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*
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* `cake myshell command -cn`
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*
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* ### Positional arguments
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*
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* If no positional arguments are defined, all of them will be parsed. If you define positional
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* arguments any arguments greater than those defined will cause exceptions. Additionally you can
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* declare arguments as optional, by setting the required param to false.
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*
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* `$parser->addArgument('model', array('required' => false));`
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*
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* ### Providing Help text
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*
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* By providing help text for your positional arguments and named arguments, the ConsoleOptionParser
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* can generate a help display for you. You can view the help for shells by using the `--help` or `-h` switch.
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*
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*/
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public function __construct($command = null, $defaultOptions = true) {
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$this->_command = $command;
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$this->addOption('help', array(
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'short' => 'h',
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'help' => 'Display this help.',
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'boolean' => true
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));
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if ($defaultOptions) {
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$this->addOption('verbose', array(
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'short' => 'v',
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'help' => __('Enable verbose output.')
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))->addOption('quiet', array(
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'short' => 'q',
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'help' => __('Enable quiet output.')
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));
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}
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}
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/**
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* Get or set the description text for shell/task
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*
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* @param string $text The text to set, or null if you want to read
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* @return mixed If reading, the value of the description. If setting $this will be returned
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*/
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public function description($text = null) {
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if ($text !== null) {
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$this->_description = $text;
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return $this;
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}
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return $this->_description;
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}
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/**
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* Get or set an epilog to the parser. The epilog is added to the end of
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* the options and arguments listing when help is generated.
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*
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* @param string $text Text when setting or null when reading.
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* @return mixed If reading, the value of the epilog. If setting $this will be returned.
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*/
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public function epilog($text = null) {
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if ($text !== null) {
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$this->_epilog = $text;
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return $this;
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}
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return $this->_epilog;
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}
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/**
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* Add an option to the option parser. Options allow you to define optional or required
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* parameters for your console application. Options are defined by the parameters they use.
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*
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* ### Params
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*
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* - `short` - The single letter variant for this option, leave undefined for none.
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* - `help` - Help text for this option. Used when generating help for the option.
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* - `default` - The default value for this option. If not defined the default will be true.
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* - `boolean` - The option uses no value, its just a boolean switch. Defaults to false.
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*
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* @param string $name The long name you want to the value to be parsed out as when options are parsed.
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* @param array $params An array of parameters that define the behavior of the option
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* @return returns $this.
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*/
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public function addOption($name, $params = array()) {
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$defaults = array(
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'name' => $name,
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'short' => null,
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'help' => '',
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'default' => true,
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'boolean' => false
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);
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$options = array_merge($defaults, $params);
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$this->_options[$name] = $options;
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if (!empty($options['short'])) {
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$this->_shortOptions[$options['short']] = $name;
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}
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return $this;
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}
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/**
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* Add a positional argument to the option parser.
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*
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* ### Params
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*
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* - `help` The help text to display for this argument.
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* - `required` Whether this parameter is required.
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* - `index` The index for the arg, if left undefined the argument will be put
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* onto the end of the arguments. If you define the same index twice the first
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* option will be overwritten.
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*
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* @param string $name The name of the argument.
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* @param array $params Parameters for the argument, see above.
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* @return $this.
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*/
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public function addArgument($name, $params = array()) {
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$index = count($this->_args);
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$defaults = array(
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'name' => $name,
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'help' => '',
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'index' => $index,
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'required' => false
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);
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$options = array_merge($defaults, $params);
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$this->_args[$options['index']] = $options;
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return $this;
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}
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/**
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* Gets the arguments defined in the parser.
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*
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* @return array Array of argument descriptions
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*/
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public function arguments() {
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return $this->_args;
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}
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/**
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* Get the defined options in the parser.
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*
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* @return array
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*/
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public function options() {
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return $this->_options;
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}
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/**
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* Parse the argv array into a set of params and args.
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*
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* @param array $argv Array of args (argv) to parse
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* @return Array array($params, $args)
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* @throws InvalidArgumentException When an invalid parameter is encountered.
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*/
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public function parse($argv) {
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$params = $args = array();
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$this->_tokens = $argv;
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while ($token = array_shift($this->_tokens)) {
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if (substr($token, 0, 2) == '--') {
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$params = $this->_parseLongOption($token, $params);
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} elseif (substr($token, 0, 1) == '-') {
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$params = $this->_parseShortOption($token, $params);
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} else {
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$args = $this->_parseArg($token, $args);
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}
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}
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foreach ($this->_args as $i => $arg) {
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if ($arg['required'] && !isset($args[$i])) {
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throw new RuntimeException(
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sprintf(__('Missing required arguments. %s is required.'), $arg['name'])
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);
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}
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}
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return array($params, $args);
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}
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/**
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* Gets formatted help for this parser object.
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* Generates help text based on the description, options, arguments and epilog
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* in the parser.
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*
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* @return string
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*/
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public function help() {
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$out = array();
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$out[] = '<info>Usage:</info>';
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$out[] = $this->_generateUsage();
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$out[] = '';
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if (!empty($this->_options)) {
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$max = 0;
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foreach ($this->_options as $description) {
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$max = (strlen($description['name']) > $max) ? strlen($description['name']) : $max;
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}
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$max += 6;
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$out[] = '<info>Options:</info>';
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$out[] = '';
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foreach ($this->_options as $description) {
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$out[] = $this->_optionHelp($description, $max);
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}
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}
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return implode("\n", $out);
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}
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/**
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* Generate the usage for a shell based on its arguments and options.
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* Usage strings favour short options over the long ones. and optional args will
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* be indicated with []
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*
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* @return string
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*/
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protected function _generateUsage() {
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$usage = array('cake ' . $this->_command);
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foreach ($this->_options as $definition) {
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$name = empty($definition['short']) ? '--' . $definition['name'] : '-' . $definition['short'];
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$default = '';
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if (!empty($definition['default']) && $definition['default'] !== true) {
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$default = ' ' . $definition['default'];
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}
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$usage[] = sprintf('[%s%s]', $name, $default);
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}
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return implode(' ', $usage);
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}
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/**
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* Generate the usage for a single option.
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*
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* @return string
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*/
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protected function _optionHelp($definition, $nameWidth) {
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$default = $short = '';
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if (!empty($definition['default']) && $definition['default'] !== true) {
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$default = sprintf(__(' <comment>(default: %s)</comment>'), $definition['default']);
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}
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if (!empty($definition['short'])) {
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$short = ', -' . $definition['short'];
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}
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$name = sprintf('--%s%s', $definition['name'], $short);
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if (strlen($name) < $nameWidth) {
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$name = str_pad($name, $nameWidth, ' ');
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}
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return sprintf('%s %s%s', $name, $definition['help'], $default);
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}
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/**
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* Parse the value for a long option out of $this->_tokens. Will handle
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* options with an `=` in them.
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*
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* @param string $option The option to parse.
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* @param array $params The params to append the parsed value into
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* @return array Params with $option added in.
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*/
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protected function _parseLongOption($option, $params) {
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$name = substr($option, 2);
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if (strpos($name, '=') !== false) {
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list($name, $value) = explode('=', $name, 2);
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array_unshift($this->_tokens, $value);
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}
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return $this->_parseOptionName($name, $params);
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}
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/**
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* Parse the value for a short option out of $this->_tokens
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* If the $option is a combination of multiple shortcuts like -otf
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* they will be shifted onto the token stack and parsed individually.
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*
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* @param string $option The option to parse.
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* @param array $params The params to append the parsed value into
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* @return array Params with $option added in.
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*/
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protected function _parseShortOption($option, $params) {
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$key = substr($option, 1);
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if (strlen($key) > 1) {
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$flags = str_split($key);
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$key = $flags[0];
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for ($i = 1, $len = count($flags); $i < $len; $i++) {
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array_unshift($this->_tokens, '-' . $flags[$i]);
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}
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}
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$name = $this->_shortOptions[$key];
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return $this->_parseOptionName($name, $params);
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}
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/**
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* Parse an option by its name index.
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*
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* @param string $option The option to parse.
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* @param array $params The params to append the parsed value into
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* @return array Params with $option added in.
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*/
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protected function _parseOptionName($name, $params) {
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$definition = $this->_options[$name];
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$nextValue = $this->_nextToken();
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if (!$definition['boolean'] && !empty($nextValue) && $nextValue{0} != '-') {
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array_shift($this->_tokens);
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$value = $nextValue;
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} else {
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$value = $definition['default'];
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}
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$params[$name] = $value;
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return $params;
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}
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/**
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* Checks that the argument doesn't exceed the declared arguments.
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*
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* @param string $argument The argument to append
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* @param array $args The array of parsed args to append to.
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* @return array Args
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*/
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protected function _parseArg($argument, $args) {
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if (empty($this->_args)) {
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array_push($args, $argument);
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return $args;
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}
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$position = 0;
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$next = count($args);
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if (!isset($this->_args[$next])) {
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throw new InvalidArgumentException(__('Too many arguments.'));
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}
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array_push($args, $argument);
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return $args;
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}
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/**
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* Find the next token in the argv set.
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*
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* @param string
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* @return next token or ''
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*/
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protected function _nextToken() {
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return isset($this->_tokens[0]) ? $this->_tokens[0] : '';
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}
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} |