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| 1 | <?php |
| 2 | |
| 3 | use MediaWiki\Installer\Installer; |
| 4 | use MediaWiki\Installer\Task\AddWikiTaskContext; |
| 5 | use MediaWiki\Installer\Task\CannedProvider; |
| 6 | use MediaWiki\Installer\Task\ITaskContext; |
| 7 | use MediaWiki\Installer\Task\Task; |
| 8 | use MediaWiki\Installer\Task\TaskFactory; |
| 9 | use MediaWiki\Installer\Task\TaskList; |
| 10 | use MediaWiki\Installer\Task\TaskRunner; |
| 11 | use MediaWiki\Maintenance\Maintenance; |
| 12 | use MediaWiki\Registration\ExtensionRegistry; |
| 13 | use MediaWiki\Settings\SettingsBuilder; |
| 14 | use Symfony\Component\Yaml\Yaml; |
| 15 | |
| 16 | require_once __DIR__ . '/Maintenance.php'; |
| 17 | |
| 18 | /** |
| 19 | * @since 1.44 |
| 20 | * @stable to extend |
| 21 | */ |
| 22 | class InstallPreConfigured extends Maintenance { |
| 23 | /** @var ITaskContext|null */ |
| 24 | private $taskContext; |
| 25 | |
| 26 | public function __construct() { |
| 27 | parent::__construct(); |
| 28 | $this->addDescription( 'Create the database and tables for a new wiki, ' . |
| 29 | 'using a pre-existing LocalSettings.php' ); |
| 30 | $this->addOption( 'task', |
| 31 | 'Execute only the specified task', false, true ); |
| 32 | $this->addOption( 'skip', |
| 33 | 'Skip the specified task', false, true, false, true ); |
| 34 | $this->addOption( 'override-config', |
| 35 | 'Specify a configuration variable with name=value. The value is in YAML format.', |
| 36 | false, true, 'c', true ); |
| 37 | $this->addOption( 'override-option', |
| 38 | 'Specify an installer option with name=value. The value is in YAML format.', |
| 39 | false, true, 'o', true ); |
| 40 | $this->addOption( 'show-tasks', |
| 41 | 'Show the list of tasks to be executed, do not actually install' ); |
| 42 | } |
| 43 | |
| 44 | public function getDbType() { |
| 45 | return Maintenance::DB_ADMIN; |
| 46 | } |
| 47 | |
| 48 | public function finalSetup( SettingsBuilder $settingsBuilder ) { |
| 49 | parent::finalSetup( $settingsBuilder ); |
| 50 | |
| 51 | // Apply override-config options. Doing this here instead of in |
| 52 | // AddWikiTaskContext::setConfigVar() allows the options to be available |
| 53 | // globally for use in LoadExtensionSchemaUpdates. |
| 54 | foreach ( $this->getOption( 'override-config' ) ?? [] as $str ) { |
| 55 | [ $name, $value ] = $this->parseKeyValue( $str ); |
| 56 | if ( str_starts_with( $name, 'wg' ) ) { |
| 57 | $name = substr( $name, 2 ); |
| 58 | } |
| 59 | $settingsBuilder->putConfigValue( $name, $value ); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | public function execute() { |
| 64 | $context = $this->getTaskContext(); |
| 65 | $taskFactory = $this->createTaskFactory( $context ); |
| 66 | $taskList = $this->createTaskList( $taskFactory ); |
| 67 | $taskRunner = $this->createTaskRunner( $taskList, $taskFactory ); |
| 68 | |
| 69 | Installer::disableStorage( $this->getConfig(), 'en' ); |
| 70 | |
| 71 | if ( $this->hasOption( 'show-tasks' ) ) { |
| 72 | $taskRunner->loadExtensions(); |
| 73 | echo $taskRunner->dumpTaskList(); |
| 74 | return false; |
| 75 | } |
| 76 | |
| 77 | if ( $this->hasOption( 'task' ) ) { |
| 78 | $status = $taskRunner->runNamedTask( $this->getOption( 'task' ) ); |
| 79 | } else { |
| 80 | $status = $taskRunner->execute(); |
| 81 | } |
| 82 | |
| 83 | if ( $status->isOK() ) { |
| 84 | $this->output( "Installation complete.\n" ); |
| 85 | return true; |
| 86 | } else { |
| 87 | $this->error( "Installation failed at task \"" . |
| 88 | $taskRunner->getCurrentTaskName() . '"' ); |
| 89 | return false; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Split a string into a key and a value, and parse the value as YAML. |
| 95 | * |
| 96 | * @param string $str |
| 97 | * @return array A list where the first element is the name, and the |
| 98 | * second is the decoded value |
| 99 | */ |
| 100 | private function parseKeyValue( string $str ) { |
| 101 | $parts = explode( '=', $str, 2 ); |
| 102 | if ( count( $parts ) !== 2 ) { |
| 103 | $this->fatalError( "Invalid configuration variable \"$str\"" ); |
| 104 | } |
| 105 | return [ $parts[0], Yaml::parse( $parts[1], Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE ) ]; |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * @return AddWikiTaskContext |
| 110 | */ |
| 111 | protected function getTaskContext() { |
| 112 | if ( !$this->taskContext ) { |
| 113 | $this->taskContext = $this->createTaskContext(); |
| 114 | } |
| 115 | return $this->taskContext; |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * Get the context for running tasks, with config overrides from the |
| 120 | * command line. |
| 121 | * |
| 122 | * @return AddWikiTaskContext |
| 123 | */ |
| 124 | private function createTaskContext() { |
| 125 | $context = new AddWikiTaskContext( |
| 126 | $this->getConfig(), |
| 127 | $this->getServiceContainer()->getDBLoadBalancerFactory() |
| 128 | ); |
| 129 | |
| 130 | // Make sure ExtensionTablesTask isn't skipped |
| 131 | $context->setOption( 'Extensions', |
| 132 | array_keys( ExtensionRegistry::getInstance()->getAllThings() ) ); |
| 133 | |
| 134 | foreach ( $this->getOption( 'override-option' ) ?? [] as $str ) { |
| 135 | [ $name, $value ] = $this->parseKeyValue( $str ); |
| 136 | $context->setOption( $name, $value ); |
| 137 | } |
| 138 | foreach ( $this->getSubclassDefaultOptions() as $name => $value ) { |
| 139 | $context->setOption( $name, $value ); |
| 140 | } |
| 141 | |
| 142 | return $context; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Get installer options overridden by a subclass |
| 147 | * |
| 148 | * @stable to override |
| 149 | * @return array |
| 150 | */ |
| 151 | protected function getSubclassDefaultOptions() { |
| 152 | return []; |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Get the full list of tasks, before skipping is applied. |
| 157 | * |
| 158 | * @param TaskFactory $taskFactory |
| 159 | * @return TaskList |
| 160 | */ |
| 161 | private function createTaskList( TaskFactory $taskFactory ) { |
| 162 | $taskList = new TaskList; |
| 163 | $taskFactory->registerMainTasks( $taskList, TaskFactory::PROFILE_ADD_WIKI ); |
| 164 | $reg = ExtensionRegistry::getInstance(); |
| 165 | $taskList->add( $taskFactory->create( |
| 166 | [ |
| 167 | 'class' => CannedProvider::class, |
| 168 | 'args' => [ |
| 169 | 'extensions', |
| 170 | [ |
| 171 | 'HookContainer' => $this->getHookContainer(), |
| 172 | 'VirtualDomains' => $reg->getAttribute( 'DatabaseVirtualDomains' ), |
| 173 | 'ExtensionTaskSpecs' => $reg->getAttribute( 'InstallerTasks' ), |
| 174 | ] |
| 175 | ] |
| 176 | ] |
| 177 | ) ); |
| 178 | foreach ( $this->getExtraTaskSpecs() as $spec ) { |
| 179 | $taskList->add( $taskFactory->create( $spec ) ); |
| 180 | } |
| 181 | return $taskList; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Subclasses can override this to provide specification arrays for extra |
| 186 | * tasks to run during install. |
| 187 | * |
| 188 | * @see TaskFactory::create() |
| 189 | * @stable to override |
| 190 | * |
| 191 | * @return array |
| 192 | */ |
| 193 | protected function getExtraTaskSpecs() { |
| 194 | return []; |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Create and configure a TaskRunner |
| 199 | * |
| 200 | * @param TaskList $taskList |
| 201 | * @param TaskFactory $taskFactory |
| 202 | * @return TaskRunner |
| 203 | */ |
| 204 | private function createTaskRunner( TaskList $taskList, TaskFactory $taskFactory ) { |
| 205 | $taskRunner = new TaskRunner( $taskList, $taskFactory, TaskFactory::PROFILE_ADD_WIKI ); |
| 206 | $taskRunner->setSkippedTasks( $this->getOption( 'skip' ) ?? [] ); |
| 207 | |
| 208 | $taskRunner->addTaskStartListener( function ( Task $task ) { |
| 209 | $name = $task->getName(); |
| 210 | $desc = $task->getDescriptionMessage()->plain(); |
| 211 | $this->output( "[$name] $desc... " ); |
| 212 | } ); |
| 213 | |
| 214 | $taskRunner->addTaskEndListener( function ( $task, StatusValue $status ) { |
| 215 | if ( $status->isOK() ) { |
| 216 | $this->output( "done\n" ); |
| 217 | } else { |
| 218 | $this->output( "\n" ); |
| 219 | } |
| 220 | if ( !$status->isGood() ) { |
| 221 | try { |
| 222 | $this->error( $status ); |
| 223 | } catch ( InvalidArgumentException $e ) { |
| 224 | $this->error( (string)$status ); |
| 225 | } |
| 226 | } |
| 227 | } ); |
| 228 | |
| 229 | return $taskRunner; |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Get the factory used to create tasks |
| 234 | * |
| 235 | * @param ITaskContext $context |
| 236 | * @return TaskFactory |
| 237 | */ |
| 238 | private function createTaskFactory( ITaskContext $context ) { |
| 239 | return new TaskFactory( |
| 240 | $this->getServiceContainer()->getObjectFactory(), |
| 241 | $context |
| 242 | ); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | $maintClass = InstallPreConfigured::class; |
| 247 | require_once RUN_MAINTENANCE_IF_MAIN; |