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ExportTranslationsMaintenanceScript.php
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ExportTranslationsMaintenanceScript.php
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<?php
namespace MediaWiki\Extension\Translate\Synchronization;
use FileBasedMessageGroup;
use MediaWiki\Extension\Translate\FileFormatSupport\GettextFormat;
use MediaWiki\Extension\Translate\MessageGroupProcessing\MessageGroups;
use MediaWiki\Extension\Translate\Services;
use MediaWiki\Extension\Translate\Statistics\MessageGroupStats;
use MediaWiki\Extension\Translate\Utilities\BaseMaintenanceScript;
use MediaWiki\Logger\LoggerFactory;
use MediaWiki\MediaWikiServices;
use MessageGroup;
/**
* Script to export translations of message groups to files.
*
* @author Niklas Laxström
* @author Siebrand Mazeland
* @copyright Copyright © 2008-2013, Niklas Laxström, Siebrand Mazeland
* @license GPL-2.0-or-later
*/
class ExportTranslationsMaintenanceScript extends BaseMaintenanceScript {
/** The translation file should be deleted if it exists */
private const ACTION_DELETE = 'delete';
/** The translation file should be created or updated */
private const ACTION_CREATE = 'create';
/** The translation file should be updated if it exists, but should not be created as a new file */
private const ACTION_UPDATE = 'update';
public function __construct() {
parent::__construct();
$this->addDescription( 'Export translations to files.' );
$this->addOption(
'group',
'Comma separated list of message group IDs (supports * wildcard) to export',
self::REQUIRED,
self::HAS_ARG
);
$this->addOption(
'lang',
'Comma separated list of language codes to export or * for all languages',
self::REQUIRED,
self::HAS_ARG
);
$this->addOption(
'always-export-languages',
'(optional) Comma separated list of languages to export ignoring export threshold',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'never-export-languages',
'(optional) Comma separated list of languages to never export (overrides everything else)',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'skip-source-language',
'(optional) Do not export the source language of each message group',
self::OPTIONAL,
self::NO_ARG
);
$this->addOption(
'target',
'Target directory for exported files',
self::REQUIRED,
self::HAS_ARG
);
$this->addOption(
'skip',
'(deprecated) See --never-export-languages',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'skipgroup',
'(optional) Comma separated list of message group IDs (supports * wildcard) to not export',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'threshold',
'(optional) Threshold for translation completion percentage that must be exceeded for initial export',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'removal-threshold',
'(optional) Threshold for translation completion percentage that must be exceeded to keep the file',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'no-fuzzy',
'(optional) Do not include any messages marked as fuzzy/outdated'
);
$this->addOption(
'offline-gettext-format',
'(optional) Export languages in offline Gettext format. Give a file pattern with '
. '%GROUPID% and %CODE%. Empty pattern defaults to %GROUPID%/%CODE%.po.',
self::OPTIONAL,
self::HAS_ARG
);
$this->addOption(
'skip-group-sync-check',
'(optional) Skip exporting group if synchronization is still in progress or if there ' .
'was an error during synchronization. See: ' .
'https://www.mediawiki.org/wiki/Help:Extension:Translate/Group_management#Strong_synchronization'
);
$this->requireExtension( 'Translate' );
}
public function execute() {
$logger = LoggerFactory::getInstance( 'Translate.GroupSynchronization' );
$groupPattern = $this->getOption( 'group' ) ?? '';
$groupSkipPattern = $this->getOption( 'skipgroup' ) ?? '';
$skipGroupSyncCheck = $this->hasOption( 'skip-group-sync-check' );
$logger->info(
'Starting exports for groups {groups}',
[ 'groups' => $groupPattern ]
);
$exportStartTime = microtime( true );
$target = $this->getOption( 'target' );
if ( !is_writable( $target ) ) {
$this->fatalError( "Target directory is not writable ($target)." );
}
$exportThreshold = $this->getOption( 'threshold' );
$removalThreshold = $this->getOption( 'removal-threshold' );
$noFuzzy = $this->hasOption( 'no-fuzzy' );
$requestedLanguages = $this->parseLanguageCodes( $this->getOption( 'lang' ) );
$alwaysExportLanguages = $this->csv2array(
$this->getOption( 'always-export-languages' ) ?? ''
);
$neverExportLanguages = $this->csv2array(
$this->getOption( 'never-export-languages' ) ??
$this->getOption( 'skip' ) ??
''
);
$skipSourceLanguage = $this->hasOption( 'skip-source-language' );
$forOffline = $this->hasOption( 'offline-gettext-format' );
$offlineTargetPattern = $this->getOption( 'offline-gettext-format' ) ?: "%GROUPID%/%CODE%.po";
$groups = $this->getMessageGroups( $groupPattern, $groupSkipPattern, $forOffline );
if ( $groups === [] ) {
$this->fatalError( 'EE1: No valid message groups identified.' );
}
$groupSyncCacheEnabled = MediaWikiServices::getInstance()->getMainConfig()
->get( 'TranslateGroupSynchronizationCache' );
$groupSyncCache = Services::getInstance()->getGroupSynchronizationCache();
foreach ( $groups as $groupId => $group ) {
if ( $groupSyncCacheEnabled && !$skipGroupSyncCheck ) {
if ( !$this->canGroupBeExported( $groupSyncCache, $groupId ) ) {
continue;
}
}
if ( $exportThreshold !== null || $removalThreshold !== null ) {
$logger->info( 'Calculating stats for group {groupId}', [ 'groupId' => $groupId ] );
$tStartTime = microtime( true );
$languageExportActions = $this->getLanguageExportActions(
$groupId,
$requestedLanguages,
$alwaysExportLanguages,
(int)$exportThreshold,
(int)$removalThreshold
);
$tEndTime = microtime( true );
$logger->info(
'Finished calculating stats for group {groupId}. Time: {duration} secs',
[
'groupId' => $groupId,
'duration' => round( $tEndTime - $tStartTime, 3 ),
]
);
} else {
// Convert list to an associative array
$languageExportActions = array_fill_keys( $requestedLanguages, self::ACTION_CREATE );
foreach ( $alwaysExportLanguages as $code ) {
$languageExportActions[ $code ] = self::ACTION_CREATE;
}
}
foreach ( $neverExportLanguages as $code ) {
unset( $languageExportActions[ $code ] );
}
if ( $skipSourceLanguage ) {
unset( $languageExportActions[ $group->getSourceLanguage() ] );
}
if ( $languageExportActions === [] ) {
continue;
}
$this->output( "Exporting group $groupId\n" );
$logger->info( 'Exporting group {groupId}', [ 'groupId' => $groupId ] );
if ( $forOffline ) {
$fileBasedGroup = FileBasedMessageGroup::newFromMessageGroup( $group, $offlineTargetPattern );
$fileFormat = new GettextFormat( $fileBasedGroup );
$fileFormat->setOfflineMode( true );
} else {
$fileBasedGroup = $group;
// At this point $group should be an instance of FileBasedMessageGroup
// This is primarily to keep linting tools / IDE happy.
if ( !$fileBasedGroup instanceof FileBasedMessageGroup ) {
$this->fatalError( "EE2: Unexportable message group $groupId" );
}
$fileFormat = $fileBasedGroup->getFFS();
}
$fileFormat->setWritePath( $target );
$sourceLanguage = $group->getSourceLanguage();
$collection = $group->initCollection( $sourceLanguage );
$inclusionList = $group->getTranslatableLanguages();
$langExportTimes = [
'collection' => 0,
'ffs' => 0,
];
$languagesExportedCount = 0;
$langStartTime = microtime( true );
foreach ( $languageExportActions as $lang => $action ) {
// Do not export languages that are excluded (or not included).
// Also check that inclusion list is not null, which means that all
// languages are allowed for translation and export.
if ( is_array( $inclusionList ) && !isset( $inclusionList[$lang] ) ) {
continue;
}
$targetFilePath = $target . '/' . $fileBasedGroup->getTargetFilename( $lang );
if ( $action === self::ACTION_DELETE ) {
// phpcs:ignore Generic.PHP.NoSilencedErrors.Discouraged
@$ok = unlink( $targetFilePath );
if ( $ok ) {
$logger->info( "Removed $targetFilePath due to removal threshold" );
}
continue;
} elseif ( $action === self::ACTION_UPDATE && !file_exists( $targetFilePath ) ) {
// Language is under export threshold, do not export yet
$logger->info( "Not creating $targetFilePath due to export threshold" );
continue;
}
$startTime = microtime( true );
$collection->resetForNewLanguage( $lang );
$collection->loadTranslations();
// Don't export ignored, unless it is the source language
// or message documentation
global $wgTranslateDocumentationLanguageCode;
if ( $lang !== $wgTranslateDocumentationLanguageCode
&& $lang !== $sourceLanguage
) {
$collection->filter( 'ignored' );
}
if ( $noFuzzy ) {
$collection->filter( 'fuzzy' );
}
$languagesExportedCount++;
$endTime = microtime( true );
$langExportTimes['collection'] += ( $endTime - $startTime );
$startTime = microtime( true );
$fileFormat->write( $collection );
$endTime = microtime( true );
$langExportTimes['ffs'] += ( $endTime - $startTime );
}
$langEndTime = microtime( true );
$logger->info(
'Done exporting {count} languages for group {groupId}. Time taken {duration} secs.',
[
'count' => $languagesExportedCount,
'groupId' => $groupId,
'duration' => round( $langEndTime - $langStartTime, 3 ),
]
);
foreach ( $langExportTimes as $type => $time ) {
$logger->info(
'Time taken by "{type}" for group {groupId} – {duration} secs.',
[
'groupId' => $groupId,
'type' => $type,
'duration' => round( $time, 3 ),
]
);
}
}
$exportEndTime = microtime( true );
$logger->info(
'Finished export process for groups {groups}. Time: {duration} secs.',
[
'groups' => $groupPattern,
'duration' => round( $exportEndTime - $exportStartTime, 3 ),
]
);
}
/** @return MessageGroup[] */
private function getMessageGroups(
string $groupPattern,
string $excludePattern,
bool $forOffline
): array {
$groupIds = MessageGroups::expandWildcards( explode( ',', trim( $groupPattern ) ) );
$groups = MessageGroups::getGroupsById( $groupIds );
if ( !$forOffline ) {
foreach ( $groups as $groupId => $group ) {
if ( $group->isMeta() ) {
$this->output( "Skipping meta message group $groupId.\n" );
unset( $groups[$groupId] );
continue;
}
if ( !$group instanceof FileBasedMessageGroup ) {
$this->output( "EE2: Unexportable message group $groupId.\n" );
unset( $groups[$groupId] );
}
}
}
$skipIds = MessageGroups::expandWildcards( explode( ',', trim( $excludePattern ) ) );
foreach ( $skipIds as $groupId ) {
if ( isset( $groups[$groupId] ) ) {
unset( $groups[$groupId] );
$this->output( "Group $groupId is in skipgroup.\n" );
}
}
return $groups;
}
/** @return string[] */
private function getLanguageExportActions(
string $groupId,
array $requestedLanguages,
array $alwaysExportLanguages,
int $exportThreshold = 0,
int $removalThreshold = 0
): array {
$stats = MessageGroupStats::forGroup( $groupId );
$languages = [];
foreach ( $requestedLanguages as $code ) {
// Statistics unavailable. This should only happen if unknown language code requested.
if ( !isset( $stats[$code] ) ) {
continue;
}
$total = $stats[$code][MessageGroupStats::TOTAL];
$translated = $stats[$code][MessageGroupStats::TRANSLATED];
$percentage = $total ? $translated / $total * 100 : 0;
if ( $percentage === 0 || $percentage < $removalThreshold ) {
$languages[$code] = self::ACTION_DELETE;
} elseif ( $percentage > $exportThreshold ) {
$languages[$code] = self::ACTION_CREATE;
} else {
$languages[$code] = self::ACTION_UPDATE;
}
}
foreach ( $alwaysExportLanguages as $code ) {
$languages[$code] = self::ACTION_CREATE;
// DWIM: Do not export languages with zero translations, even if requested
if ( ( $stats[$code][MessageGroupStats::TRANSLATED] ?? null ) === 0 ) {
$languages[$code] = self::ACTION_DELETE;
}
}
return $languages;
}
private function canGroupBeExported( GroupSynchronizationCache $groupSyncCache, string $groupId ): bool {
if ( $groupSyncCache->isGroupBeingProcessed( $groupId ) ) {
$this->error( "Group $groupId is currently being synchronized; skipping exports\n" );
return false;
}
if ( $groupSyncCache->groupHasErrors( $groupId ) ) {
$this->error( "Skipping $groupId due to synchronization error\n" );
return false;
}
if ( $groupSyncCache->isGroupInReview( $groupId ) ) {
$this->error( "Group $groupId is currently in review. Review changes on Special:ManageMessageGroups\n" );
return false;
}
return true;
}
/** @return string[] */
private function csv2array( string $input ): array {
return array_filter(
array_map( 'trim', explode( ',', $input ) ),
static function ( $v ) {
return $v !== '';
}
);
}
/** @return string[] */
private function parseLanguageCodes( string $input ): array {
if ( $input === '*' ) {
$languageNameUtils = MediaWikiServices::getInstance()->getLanguageNameUtils();
$languages = $languageNameUtils->getLanguageNames();
ksort( $languages );
return array_keys( $languages );
}
return $this->csv2array( $input );
}
}

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Mime Type
text/x-php
Expires
Sun, Oct 4, 00:01 (2 w, 3 d ago)
Storage Engine
local-disk
Storage Format
Raw Data
Storage Handle
71/1b/68ab308e810c12bc9a5abc177496
Default Alt Text
ExportTranslationsMaintenanceScript.php (13 KB)

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