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<?php
/**
* (C) 2019 Kunal Mehta <legoktm@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
use MediaWiki\MainConfigNames;
use MediaWiki\Maintenance\Maintenance;
use MediaWiki\Registration\ExtensionDependencyError;
use MediaWiki\Registration\ExtensionRegistry;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
/**
* Checks dependencies for extensions, mostly without loading them
*
* @since 1.34
*/
class CheckDependencies extends Maintenance {
/** @var bool */
private $checkDev;
public function __construct() {
parent::__construct();
$this->addDescription( 'Check dependencies for extensions' );
$this->addOption( 'extensions', 'Comma separated list of extensions to check', false, true );
$this->addOption( 'skins', 'Comma separated list of skins to check', false, true );
$this->addOption( 'json', 'Output in JSON' );
$this->addOption( 'dev', 'Check development dependencies too' );
}
public function execute() {
$this->checkDev = $this->hasOption( 'dev' );
$extensions = $this->hasOption( 'extensions' )
? explode( ',', $this->getOption( 'extensions' ) )
: [];
$skins = $this->hasOption( 'skins' )
? explode( ',', $this->getOption( 'skins' ) )
: [];
$dependencies = [];
// Note that we can only use the main registry if we are
// not checking development dependencies.
$registry = ExtensionRegistry::getInstance();
foreach ( $extensions as $extension ) {
if ( !$this->checkDev && $registry->isLoaded( $extension ) ) {
// If it's already loaded, we know all the dependencies resolved.
$this->addToDependencies( $dependencies, [ $extension ], [] );
continue;
}
$this->loadThing( $dependencies, $extension, [ $extension ], [] );
}
foreach ( $skins as $skin ) {
if ( !$this->checkDev && $registry->isLoaded( $skin ) ) {
// If it's already loaded, we know all the dependencies resolved.
$this->addToDependencies( $dependencies, [], [ $skin ] );
continue;
}
$this->loadThing( $dependencies, $skin, [], [ $skin ] );
}
if ( $this->hasOption( 'json' ) ) {
$this->output( json_encode( $dependencies ) . "\n" );
} else {
$this->output( $this->formatForHumans( $dependencies ) . "\n" );
}
}
private function loadThing( array &$dependencies, string $name, array $extensions, array $skins ) {
$extDir = $this->getConfig()->get( MainConfigNames::ExtensionDirectory );
$styleDir = $this->getConfig()->get( MainConfigNames::StyleDirectory );
$queue = [];
$missing = false;
foreach ( $extensions as $extension ) {
$path = "$extDir/$extension/extension.json";
if ( file_exists( $path ) ) {
// 1 is ignored
$queue[$path] = 1;
$this->addToDependencies( $dependencies, [ $extension ], [], $name );
} else {
$missing = true;
$this->addToDependencies( $dependencies, [ $extension ], [], $name, 'missing' );
}
}
foreach ( $skins as $skin ) {
$path = "$styleDir/$skin/skin.json";
if ( file_exists( $path ) ) {
$queue[$path] = 1;
$this->addToDependencies( $dependencies, [], [ $skin ], $name );
} else {
$missing = true;
$this->addToDependencies( $dependencies, [], [ $skin ], $name, 'missing' );
}
}
if ( $missing ) {
// Stuff is missing, give up
return;
}
$registry = new ExtensionRegistry();
$registry->setCheckDevRequires( $this->checkDev );
try {
$registry->readFromQueue( $queue );
} catch ( ExtensionDependencyError $e ) {
$reason = false;
if ( $e->incompatibleCore ) {
$reason = 'incompatible-core';
} elseif ( $e->incompatibleSkins ) {
$reason = 'incompatible-skins';
} elseif ( $e->incompatibleExtensions ) {
$reason = 'incompatible-extensions';
} elseif ( $e->missingExtensions || $e->missingSkins ) {
// There's an extension missing in the dependency tree,
// so add those to the dependency list and try again
$this->loadThing(
$dependencies,
$name,
array_merge( $extensions, $e->missingExtensions ),
array_merge( $skins, $e->missingSkins )
);
return;
} else {
// missing-phpExtension
// missing-ability
// XXX: ???
$this->fatalError( $e->getMessage() );
}
$this->addToDependencies( $dependencies, $extensions, $skins, $name, $reason, $e->getMessage() );
}
$this->addToDependencies( $dependencies, $extensions, $skins, $name );
}
private function addToDependencies( array &$dependencies, array $extensions, array $skins,
?string $why = null, ?string $status = null, ?string $message = null
) {
$mainRegistry = ExtensionRegistry::getInstance();
$iter = [ 'extensions' => $extensions, 'skins' => $skins ];
foreach ( $iter as $type => $things ) {
foreach ( $things as $thing ) {
$preStatus = $dependencies[$type][$thing]['status'] ?? false;
if ( $preStatus !== 'loaded' ) {
// OK to overwrite
if ( $status ) {
$tStatus = $status;
} else {
$tStatus = $mainRegistry->isLoaded( $thing ) ? 'loaded' : 'present';
}
$dependencies[$type][$thing]['status'] = $tStatus;
}
if ( $why !== null ) {
$dependencies[$type][$thing]['why'][] = $why;
// XXX: this is a bit messy
$dependencies[$type][$thing]['why'] = array_unique(
$dependencies[$type][$thing]['why'] );
}
if ( $message !== null ) {
$dependencies[$type][$thing]['message'] = trim( $message );
}
}
}
}
private function formatForHumans( array $dependencies ): string {
$text = '';
foreach ( $dependencies as $type => $things ) {
$text .= ucfirst( $type ) . "\n" . str_repeat( '=', strlen( $type ) ) . "\n";
foreach ( $things as $thing => $info ) {
$why = $info['why'] ?? [];
if ( $why ) {
$whyText = '(because: ' . implode( ',', $why ) . ') ';
} else {
$whyText = '';
}
$msg = isset( $info['message'] ) ? ", {$info['message']}" : '';
$text .= "$thing: {$info['status']}{$msg} $whyText\n";
}
$text .= "\n";
}
return trim( $text );
}
}
// @codeCoverageIgnoreStart
$maintClass = CheckDependencies::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd