414 lines
No EOL
12 KiB
PHP
414 lines
No EOL
12 KiB
PHP
<?php
|
|
/**
|
|
* PEAR_Command, command pattern class
|
|
*
|
|
* PHP versions 4 and 5
|
|
*
|
|
* @category pear
|
|
* @package PEAR
|
|
* @author Stig Bakken <ssb@php.net>
|
|
* @author Greg Beaver <cellog@php.net>
|
|
* @copyright 1997-2009 The Authors
|
|
* @license http://opensource.org/licenses/bsd-license.php New BSD License
|
|
* @version CVS: $Id: Command.php 313023 2011-07-06 19:17:11Z dufuz $
|
|
* @link http://pear.php.net/package/PEAR
|
|
* @since File available since Release 0.1
|
|
*/
|
|
|
|
/**
|
|
* Needed for error handling
|
|
*/
|
|
require_once 'PEAR.php';
|
|
require_once 'PEAR/Frontend.php';
|
|
require_once 'PEAR/XMLParser.php';
|
|
|
|
/**
|
|
* List of commands and what classes they are implemented in.
|
|
* @var array command => implementing class
|
|
*/
|
|
$GLOBALS['_PEAR_Command_commandlist'] = array();
|
|
|
|
/**
|
|
* List of commands and their descriptions
|
|
* @var array command => description
|
|
*/
|
|
$GLOBALS['_PEAR_Command_commanddesc'] = array();
|
|
|
|
/**
|
|
* List of shortcuts to common commands.
|
|
* @var array shortcut => command
|
|
*/
|
|
$GLOBALS['_PEAR_Command_shortcuts'] = array();
|
|
|
|
/**
|
|
* Array of command objects
|
|
* @var array class => object
|
|
*/
|
|
$GLOBALS['_PEAR_Command_objects'] = array();
|
|
|
|
/**
|
|
* PEAR command class, a simple factory class for administrative
|
|
* commands.
|
|
*
|
|
* How to implement command classes:
|
|
*
|
|
* - The class must be called PEAR_Command_Nnn, installed in the
|
|
* "PEAR/Common" subdir, with a method called getCommands() that
|
|
* returns an array of the commands implemented by the class (see
|
|
* PEAR/Command/Install.php for an example).
|
|
*
|
|
* - The class must implement a run() function that is called with three
|
|
* params:
|
|
*
|
|
* (string) command name
|
|
* (array) assoc array with options, freely defined by each
|
|
* command, for example:
|
|
* array('force' => true)
|
|
* (array) list of the other parameters
|
|
*
|
|
* The run() function returns a PEAR_CommandResponse object. Use
|
|
* these methods to get information:
|
|
*
|
|
* int getStatus() Returns PEAR_COMMAND_(SUCCESS|FAILURE|PARTIAL)
|
|
* *_PARTIAL means that you need to issue at least
|
|
* one more command to complete the operation
|
|
* (used for example for validation steps).
|
|
*
|
|
* string getMessage() Returns a message for the user. Remember,
|
|
* no HTML or other interface-specific markup.
|
|
*
|
|
* If something unexpected happens, run() returns a PEAR error.
|
|
*
|
|
* - DON'T OUTPUT ANYTHING! Return text for output instead.
|
|
*
|
|
* - DON'T USE HTML! The text you return will be used from both Gtk,
|
|
* web and command-line interfaces, so for now, keep everything to
|
|
* plain text.
|
|
*
|
|
* - DON'T USE EXIT OR DIE! Always use pear errors. From static
|
|
* classes do PEAR::raiseError(), from other classes do
|
|
* $this->raiseError().
|
|
* @category pear
|
|
* @package PEAR
|
|
* @author Stig Bakken <ssb@php.net>
|
|
* @author Greg Beaver <cellog@php.net>
|
|
* @copyright 1997-2009 The Authors
|
|
* @license http://opensource.org/licenses/bsd-license.php New BSD License
|
|
* @version Release: 1.9.4
|
|
* @link http://pear.php.net/package/PEAR
|
|
* @since Class available since Release 0.1
|
|
*/
|
|
class PEAR_Command
|
|
{
|
|
// {{{ factory()
|
|
|
|
/**
|
|
* Get the right object for executing a command.
|
|
*
|
|
* @param string $command The name of the command
|
|
* @param object $config Instance of PEAR_Config object
|
|
*
|
|
* @return object the command object or a PEAR error
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function &factory($command, &$config)
|
|
{
|
|
if (empty($GLOBALS['_PEAR_Command_commandlist'])) {
|
|
PEAR_Command::registerCommands();
|
|
}
|
|
if (isset($GLOBALS['_PEAR_Command_shortcuts'][$command])) {
|
|
$command = $GLOBALS['_PEAR_Command_shortcuts'][$command];
|
|
}
|
|
if (!isset($GLOBALS['_PEAR_Command_commandlist'][$command])) {
|
|
$a = PEAR::raiseError("unknown command `$command'");
|
|
return $a;
|
|
}
|
|
$class = $GLOBALS['_PEAR_Command_commandlist'][$command];
|
|
if (!class_exists($class)) {
|
|
require_once $GLOBALS['_PEAR_Command_objects'][$class];
|
|
}
|
|
if (!class_exists($class)) {
|
|
$a = PEAR::raiseError("unknown command `$command'");
|
|
return $a;
|
|
}
|
|
$ui = PEAR_Command::getFrontendObject();
|
|
$obj = new $class($ui, $config);
|
|
return $obj;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ & getObject()
|
|
function &getObject($command)
|
|
{
|
|
$class = $GLOBALS['_PEAR_Command_commandlist'][$command];
|
|
if (!class_exists($class)) {
|
|
require_once $GLOBALS['_PEAR_Command_objects'][$class];
|
|
}
|
|
if (!class_exists($class)) {
|
|
return PEAR::raiseError("unknown command `$command'");
|
|
}
|
|
$ui = PEAR_Command::getFrontendObject();
|
|
$config = &PEAR_Config::singleton();
|
|
$obj = &new $class($ui, $config);
|
|
return $obj;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ & getFrontendObject()
|
|
|
|
/**
|
|
* Get instance of frontend object.
|
|
*
|
|
* @return object|PEAR_Error
|
|
* @static
|
|
*/
|
|
function &getFrontendObject()
|
|
{
|
|
$a = &PEAR_Frontend::singleton();
|
|
return $a;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ & setFrontendClass()
|
|
|
|
/**
|
|
* Load current frontend class.
|
|
*
|
|
* @param string $uiclass Name of class implementing the frontend
|
|
*
|
|
* @return object the frontend object, or a PEAR error
|
|
* @static
|
|
*/
|
|
function &setFrontendClass($uiclass)
|
|
{
|
|
$a = &PEAR_Frontend::setFrontendClass($uiclass);
|
|
return $a;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ setFrontendType()
|
|
|
|
/**
|
|
* Set current frontend.
|
|
*
|
|
* @param string $uitype Name of the frontend type (for example "CLI")
|
|
*
|
|
* @return object the frontend object, or a PEAR error
|
|
* @static
|
|
*/
|
|
function setFrontendType($uitype)
|
|
{
|
|
$uiclass = 'PEAR_Frontend_' . $uitype;
|
|
return PEAR_Command::setFrontendClass($uiclass);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ registerCommands()
|
|
|
|
/**
|
|
* Scan through the Command directory looking for classes
|
|
* and see what commands they implement.
|
|
*
|
|
* @param bool (optional) if FALSE (default), the new list of
|
|
* commands should replace the current one. If TRUE,
|
|
* new entries will be merged with old.
|
|
*
|
|
* @param string (optional) where (what directory) to look for
|
|
* classes, defaults to the Command subdirectory of
|
|
* the directory from where this file (__FILE__) is
|
|
* included.
|
|
*
|
|
* @return bool TRUE on success, a PEAR error on failure
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function registerCommands($merge = false, $dir = null)
|
|
{
|
|
$parser = new PEAR_XMLParser;
|
|
if ($dir === null) {
|
|
$dir = dirname(__FILE__) . '/Command';
|
|
}
|
|
if (!is_dir($dir)) {
|
|
return PEAR::raiseError("registerCommands: opendir($dir) '$dir' does not exist or is not a directory");
|
|
}
|
|
$dp = @opendir($dir);
|
|
if (empty($dp)) {
|
|
return PEAR::raiseError("registerCommands: opendir($dir) failed");
|
|
}
|
|
if (!$merge) {
|
|
$GLOBALS['_PEAR_Command_commandlist'] = array();
|
|
}
|
|
|
|
while ($file = readdir($dp)) {
|
|
if ($file{0} == '.' || substr($file, -4) != '.xml') {
|
|
continue;
|
|
}
|
|
|
|
$f = substr($file, 0, -4);
|
|
$class = "PEAR_Command_" . $f;
|
|
// List of commands
|
|
if (empty($GLOBALS['_PEAR_Command_objects'][$class])) {
|
|
$GLOBALS['_PEAR_Command_objects'][$class] = "$dir/" . $f . '.php';
|
|
}
|
|
|
|
$parser->parse(file_get_contents("$dir/$file"));
|
|
$implements = $parser->getData();
|
|
foreach ($implements as $command => $desc) {
|
|
if ($command == 'attribs') {
|
|
continue;
|
|
}
|
|
|
|
if (isset($GLOBALS['_PEAR_Command_commandlist'][$command])) {
|
|
return PEAR::raiseError('Command "' . $command . '" already registered in ' .
|
|
'class "' . $GLOBALS['_PEAR_Command_commandlist'][$command] . '"');
|
|
}
|
|
|
|
$GLOBALS['_PEAR_Command_commandlist'][$command] = $class;
|
|
$GLOBALS['_PEAR_Command_commanddesc'][$command] = $desc['summary'];
|
|
if (isset($desc['shortcut'])) {
|
|
$shortcut = $desc['shortcut'];
|
|
if (isset($GLOBALS['_PEAR_Command_shortcuts'][$shortcut])) {
|
|
return PEAR::raiseError('Command shortcut "' . $shortcut . '" already ' .
|
|
'registered to command "' . $command . '" in class "' .
|
|
$GLOBALS['_PEAR_Command_commandlist'][$command] . '"');
|
|
}
|
|
$GLOBALS['_PEAR_Command_shortcuts'][$shortcut] = $command;
|
|
}
|
|
|
|
if (isset($desc['options']) && $desc['options']) {
|
|
foreach ($desc['options'] as $oname => $option) {
|
|
if (isset($option['shortopt']) && strlen($option['shortopt']) > 1) {
|
|
return PEAR::raiseError('Option "' . $oname . '" short option "' .
|
|
$option['shortopt'] . '" must be ' .
|
|
'only 1 character in Command "' . $command . '" in class "' .
|
|
$class . '"');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ksort($GLOBALS['_PEAR_Command_shortcuts']);
|
|
ksort($GLOBALS['_PEAR_Command_commandlist']);
|
|
@closedir($dp);
|
|
return true;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getCommands()
|
|
|
|
/**
|
|
* Get the list of currently supported commands, and what
|
|
* classes implement them.
|
|
*
|
|
* @return array command => implementing class
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function getCommands()
|
|
{
|
|
if (empty($GLOBALS['_PEAR_Command_commandlist'])) {
|
|
PEAR_Command::registerCommands();
|
|
}
|
|
return $GLOBALS['_PEAR_Command_commandlist'];
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getShortcuts()
|
|
|
|
/**
|
|
* Get the list of command shortcuts.
|
|
*
|
|
* @return array shortcut => command
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function getShortcuts()
|
|
{
|
|
if (empty($GLOBALS['_PEAR_Command_shortcuts'])) {
|
|
PEAR_Command::registerCommands();
|
|
}
|
|
return $GLOBALS['_PEAR_Command_shortcuts'];
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getGetoptArgs()
|
|
|
|
/**
|
|
* Compiles arguments for getopt.
|
|
*
|
|
* @param string $command command to get optstring for
|
|
* @param string $short_args (reference) short getopt format
|
|
* @param array $long_args (reference) long getopt format
|
|
*
|
|
* @return void
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function getGetoptArgs($command, &$short_args, &$long_args)
|
|
{
|
|
if (empty($GLOBALS['_PEAR_Command_commandlist'])) {
|
|
PEAR_Command::registerCommands();
|
|
}
|
|
if (isset($GLOBALS['_PEAR_Command_shortcuts'][$command])) {
|
|
$command = $GLOBALS['_PEAR_Command_shortcuts'][$command];
|
|
}
|
|
if (!isset($GLOBALS['_PEAR_Command_commandlist'][$command])) {
|
|
return null;
|
|
}
|
|
$obj = &PEAR_Command::getObject($command);
|
|
return $obj->getGetoptArgs($command, $short_args, $long_args);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getDescription()
|
|
|
|
/**
|
|
* Get description for a command.
|
|
*
|
|
* @param string $command Name of the command
|
|
*
|
|
* @return string command description
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function getDescription($command)
|
|
{
|
|
if (!isset($GLOBALS['_PEAR_Command_commanddesc'][$command])) {
|
|
return null;
|
|
}
|
|
return $GLOBALS['_PEAR_Command_commanddesc'][$command];
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getHelp()
|
|
|
|
/**
|
|
* Get help for command.
|
|
*
|
|
* @param string $command Name of the command to return help for
|
|
*
|
|
* @access public
|
|
* @static
|
|
*/
|
|
function getHelp($command)
|
|
{
|
|
$cmds = PEAR_Command::getCommands();
|
|
if (isset($GLOBALS['_PEAR_Command_shortcuts'][$command])) {
|
|
$command = $GLOBALS['_PEAR_Command_shortcuts'][$command];
|
|
}
|
|
if (isset($cmds[$command])) {
|
|
$obj = &PEAR_Command::getObject($command);
|
|
return $obj->getHelp($command);
|
|
}
|
|
return false;
|
|
}
|
|
// }}}
|
|
} |