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78 lines
1.8 KiB
PHP
78 lines
1.8 KiB
PHP
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<?php
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/**
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* HelpCommand class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* HelpCommand displays help information for commands under yiic shell.
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*
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* @property string $help The command description.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.cli.commands.shell
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* @since 1.0
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*/
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class HelpCommand extends CConsoleCommand
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{
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/**
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* Execute the action.
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* @param array $args command line parameters specific for this command
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* @return integer non zero application exit code for help
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*/
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public function run($args)
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{
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$runner=$this->getCommandRunner();
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$commands=$runner->commands;
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if(isset($args[0]))
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$name=strtolower($args[0]);
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if(!isset($args[0]) || !isset($commands[$name]))
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{
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echo <<<EOD
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At the prompt, you may enter a PHP statement or one of the following commands:
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EOD;
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$commandNames=array_keys($commands);
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sort($commandNames);
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echo ' - '.implode("\n - ",$commandNames);
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echo <<<EOD
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Type 'help <command-name>' for details about a command.
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To expand the above command list, place your command class files
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under 'protected/commands/shell', or a directory specified
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by the 'YIIC_SHELL_COMMAND_PATH' environment variable. The command class
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must extend from CConsoleCommand.
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EOD;
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}
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else
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echo $runner->createCommand($name)->getHelp();
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return 1;
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}
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/**
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* Provides the command description.
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* @return string the command description.
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*/
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public function getHelp()
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{
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return <<<EOD
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USAGE
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help [command-name]
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DESCRIPTION
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Display the help information for the specified command.
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If the command name is not given, all commands will be listed.
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PARAMETERS
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* command-name: optional, the name of the command to show help information.
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EOD;
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}
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}
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