summaryrefslogtreecommitdiff
path: root/maintenance/rebuildLocalisationCache.php
diff options
context:
space:
mode:
authorPierre Schmitz <pierre@archlinux.de>2010-07-28 11:52:48 +0200
committerPierre Schmitz <pierre@archlinux.de>2010-07-28 11:52:48 +0200
commit222b01f5169f1c7e69762e0e8904c24f78f71882 (patch)
tree8e932e12546bb991357ec48eb1638d1770be7a35 /maintenance/rebuildLocalisationCache.php
parent00ab76a6b686e98a914afc1975812d2b1aaa7016 (diff)
update to MediaWiki 1.16.0
Diffstat (limited to 'maintenance/rebuildLocalisationCache.php')
-rw-r--r--maintenance/rebuildLocalisationCache.php133
1 files changed, 133 insertions, 0 deletions
diff --git a/maintenance/rebuildLocalisationCache.php b/maintenance/rebuildLocalisationCache.php
new file mode 100644
index 00000000..1c517415
--- /dev/null
+++ b/maintenance/rebuildLocalisationCache.php
@@ -0,0 +1,133 @@
+<?php
+
+/**
+ * Rebuild the localisation cache. Useful if you disabled automatic updates
+ * using $wgLocalisationCacheConf['manualRecache'] = true;
+ *
+ * Usage:
+ * php rebuildLocalisationCache.php [--force] [--threads=N]
+ *
+ * Use --force to rebuild all files, even the ones that are not out of date.
+ * Use --threads=N to fork more threads.
+ *
+ * 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
+ *
+ * @ingroup Maintenance
+ */
+
+require_once( dirname(__FILE__) . '/Maintenance.php' );
+
+class RebuildLocalisationCache extends Maintenance {
+ public function __construct() {
+ parent::__construct();
+ $this->mDescription = "Rebuild the localisation cache";
+ $this->addOption( 'force', 'Rebuild all files, even ones not out of date' );
+ $this->addOption( 'threads', 'Fork more than one thread', false, true );
+ }
+
+ public function memoryLimit() {
+ return '200M';
+ }
+
+ public function execute() {
+ global $wgLocalisationCacheConf;
+
+ $force = $this->hasOption('force');
+ $threads = $this->getOption( 'threads', 1 );
+ if( $threads < 1 || $threads != intval( $threads ) ) {
+ $this->output( "Invalid thread count specified; running single-threaded.\n" );
+ $threads = 1;
+ }
+ if( $threads > 1 && wfIsWindows() ) {
+ $this->output( "Threaded rebuild is not supported on Windows; running single-threaded.\n" );
+ $threads = 1;
+ }
+ if( $threads > 1 && !function_exists( 'pcntl_fork' ) ) {
+ $this->output( "PHP pcntl extension is not present; running single-threaded.\n" );
+ $threads = 1;
+ }
+
+ $conf = $wgLocalisationCacheConf;
+ $conf['manualRecache'] = false; // Allow fallbacks to create CDB files
+ if ( $force ) {
+ $conf['forceRecache'] = true;
+ }
+ $lc = new LocalisationCache_BulkLoad( $conf );
+
+ $codes = array_keys( Language::getLanguageNames( true ) );
+ sort( $codes );
+
+ // Initialise and split into chunks
+ $numRebuilt = 0;
+ $total = count($codes);
+ $chunks = array_chunk( $codes, ceil(count($codes)/$threads) );
+ $pids = array();
+ foreach ( $chunks as $codes ) {
+ // Do not fork for only one thread
+ $pid = ( $threads > 1 ) ? pcntl_fork() : -1;
+
+ if ( $pid === 0 ) {
+ // Child, reseed because there is no bug in PHP:
+ // http://bugs.php.net/bug.php?id=42465
+ mt_srand(getmypid());
+ $numRebuilt = $this->doRebuild( $codes, $lc, $force );
+ // Abuse the exit value for the count of rebuild languages
+ exit($numRebuilt);
+ } elseif ($pid === -1) {
+ // Fork failed or one thread, do it serialized
+ $numRebuilt += $this->doRebuild( $codes, $lc, $force );
+ } else {
+ // Main thread
+ $pids[] = $pid;
+ }
+ }
+ // Wait for all children
+ foreach ( $pids as $pid ) {
+ $status = 0;
+ pcntl_waitpid($pid, $status);
+ // Fetch the count from the return value
+ $numRebuilt += pcntl_wexitstatus($status);
+ }
+
+ $this->output( "$numRebuilt languages rebuilt out of $total\n" );
+ if ( $numRebuilt === 0 ) {
+ $this->output( "Use --force to rebuild the caches which are still fresh.\n" );
+ }
+ }
+
+ /**
+ * Helper function to rebuild list of languages codes. Prints the code
+ * for each language which is rebuilt.
+ * @param $codes list List of language codes to rebuild.
+ * @param $lc object Instance of LocalisationCache_BulkLoad (?)
+ * @param $force bool Rebuild up-to-date languages
+ * @return int Number of rebuilt languages
+ */
+ private function doRebuild( $codes, $lc, $force ) {
+ $numRebuilt = 0;
+ foreach ( $codes as $code ) {
+ if ( $force || $lc->isExpired( $code ) ) {
+ $this->output( "Rebuilding $code...\n" );
+ $lc->recache( $code );
+ $numRebuilt++;
+ }
+ }
+ return $numRebuilt;
+ }
+}
+
+$maintClass = "RebuildLocalisationCache";
+require_once( DO_MAINTENANCE );