MediaWiki  master
recompressTracked.php
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1 <?php
29 use Wikimedia\AtEase\AtEase;
30 
32 require __DIR__ . '/../CommandLineInc.php';
33 
34 if ( count( $args ) < 1 ) {
35  echo "Usage: php recompressTracked.php [options] <cluster> [... <cluster>...]
36 Moves blobs indexed by trackBlobs.php to a specified list of destination clusters,
37 and recompresses them in the process. Restartable.
38 
39 Options:
40  --procs <procs> Set the number of child processes (default 1)
41  --copy-only Copy only, do not update the text table. Restart
42  without this option to complete.
43  --debug-log <file> Log debugging data to the specified file
44  --info-log <file> Log progress messages to the specified file
45  --critical-log <file> Log error messages to the specified file
46 ";
47  exit( 1 );
48 }
49 
51 $job->execute();
52 
60  public $destClusters;
61  public $batchSize = 1000;
62  public $orphanBatchSize = 1000;
63  public $reportingInterval = 10;
64  public $numProcs = 1;
65  public $numBatches = 0;
68  public $copyOnly = false;
69  public $isChild = false;
70  public $childId = false;
71  public $noCount = false;
74  public $store;
76  private $blobStore;
77 
78  private static $optionsWithArgs = [
79  'procs',
80  'child-id',
81  'debug-log',
82  'info-log',
83  'critical-log'
84  ];
85 
86  private static $cmdLineOptionMap = [
87  'no-count' => 'noCount',
88  'procs' => 'numProcs',
89  'copy-only' => 'copyOnly',
90  'child' => 'isChild',
91  'child-id' => 'childId',
92  'debug-log' => 'debugLog',
93  'info-log' => 'infoLog',
94  'critical-log' => 'criticalLog',
95  ];
96 
97  public static function getOptionsWithArgs() {
99  }
100 
101  public static function newFromCommandLine( $args, $options ) {
102  $jobOptions = [ 'destClusters' => $args ];
103  foreach ( self::$cmdLineOptionMap as $cmdOption => $classOption ) {
104  if ( isset( $options[$cmdOption] ) ) {
105  $jobOptions[$classOption] = $options[$cmdOption];
106  }
107  }
108 
109  return new self( $jobOptions );
110  }
111 
112  public function __construct( $options ) {
113  foreach ( $options as $name => $value ) {
114  $this->$name = $value;
115  }
116  $esFactory = MediaWikiServices::getInstance()->getExternalStoreFactory();
117  $this->store = $esFactory->getStore( 'DB' );
118  if ( !$this->isChild ) {
119  $GLOBALS['wgDebugLogPrefix'] = "RCT M: ";
120  } elseif ( $this->childId !== false ) {
121  $GLOBALS['wgDebugLogPrefix'] = "RCT {$this->childId}: ";
122  }
123  $this->pageBlobClass = function_exists( 'xdiff_string_bdiff' ) ?
124  DiffHistoryBlob::class : ConcatenatedGzipHistoryBlob::class;
125  $this->orphanBlobClass = ConcatenatedGzipHistoryBlob::class;
126 
127  $this->blobStore = MediaWikiServices::getInstance()
128  ->getBlobStoreFactory()
129  ->newSqlBlobStore();
130  }
131 
132  public function debug( $msg ) {
133  wfDebug( "$msg" );
134  if ( $this->debugLog ) {
135  $this->logToFile( $msg, $this->debugLog );
136  }
137  }
138 
139  public function info( $msg ) {
140  echo "$msg\n";
141  if ( $this->infoLog ) {
142  $this->logToFile( $msg, $this->infoLog );
143  }
144  }
145 
146  public function critical( $msg ) {
147  echo "$msg\n";
148  if ( $this->criticalLog ) {
149  $this->logToFile( $msg, $this->criticalLog );
150  }
151  }
152 
153  private function logToFile( $msg, $file ) {
154  $header = '[' . date( 'd\TH:i:s' ) . '] ' . wfHostname() . ' ' . posix_getpid();
155  if ( $this->childId !== false ) {
156  $header .= "({$this->childId})";
157  }
158  $header .= ' ' . WikiMap::getCurrentWikiDbDomain()->getId();
159  LegacyLogger::emit( sprintf( "%-50s %s\n", $header, $msg ), $file );
160  }
161 
167  private function syncDBs() {
168  $dbw = wfGetDB( DB_PRIMARY );
169  $dbr = wfGetDB( DB_REPLICA );
170  $pos = $dbw->getPrimaryPos();
171  $dbr->primaryPosWait( $pos, 100000 );
172  }
173 
177  public function execute() {
178  if ( $this->isChild ) {
179  $this->executeChild();
180  } else {
181  $this->executeParent();
182  }
183  }
184 
188  public function executeParent() {
189  if ( !$this->checkTrackingTable() ) {
190  return;
191  }
192 
193  $this->syncDBs();
194  $this->startChildProcs();
195  $this->doAllPages();
196  $this->doAllOrphans();
197  $this->killChildProcs();
198  }
199 
204  private function checkTrackingTable() {
205  $dbr = wfGetDB( DB_REPLICA );
206  if ( !$dbr->tableExists( 'blob_tracking', __METHOD__ ) ) {
207  $this->critical( "Error: blob_tracking table does not exist" );
208 
209  return false;
210  }
211  $row = $dbr->selectRow( 'blob_tracking', '*', '', __METHOD__ );
212  if ( !$row ) {
213  $this->info( "Warning: blob_tracking table contains no rows, skipping this wiki." );
214 
215  return false;
216  }
217 
218  return true;
219  }
220 
227  private function startChildProcs() {
228  $wiki = WikiMap::getCurrentWikiId();
229 
230  $cmd = 'php ' . Shell::escape( __FILE__ );
231  foreach ( self::$cmdLineOptionMap as $cmdOption => $classOption ) {
232  if ( $cmdOption == 'child-id' ) {
233  continue;
234  }
235  if ( in_array( $cmdOption, self::$optionsWithArgs ) && isset( $this->$classOption ) ) {
236  // @phan-suppress-next-line PhanTypeMismatchArgument False positive
237  $cmd .= " --$cmdOption " . Shell::escape( $this->$classOption );
238  } elseif ( $this->$classOption ) {
239  $cmd .= " --$cmdOption";
240  }
241  }
242  $cmd .= ' --child' .
243  ' --wiki ' . Shell::escape( $wiki ) .
244  ' ' . Shell::escape( ...$this->destClusters );
245 
246  $this->childPipes = $this->childProcs = [];
247  for ( $i = 0; $i < $this->numProcs; $i++ ) {
248  $pipes = [];
249  $spec = [
250  [ 'pipe', 'r' ],
251  [ 'file', 'php://stdout', 'w' ],
252  [ 'file', 'php://stderr', 'w' ]
253  ];
254  AtEase::suppressWarnings();
255  $proc = proc_open( "$cmd --child-id $i", $spec, $pipes );
256  AtEase::restoreWarnings();
257  if ( !$proc ) {
258  $this->critical( "Error opening child process: $cmd" );
259  exit( 1 );
260  }
261  $this->childProcs[$i] = $proc;
262  $this->childPipes[$i] = $pipes[0];
263  }
264  $this->prevChildId = -1;
265  }
266 
270  private function killChildProcs() {
271  $this->info( "Waiting for child processes to finish..." );
272  for ( $i = 0; $i < $this->numProcs; $i++ ) {
273  $this->dispatchToChild( $i, 'quit' );
274  }
275  for ( $i = 0; $i < $this->numProcs; $i++ ) {
276  $status = proc_close( $this->childProcs[$i] );
277  if ( $status ) {
278  $this->critical( "Warning: child #$i exited with status $status" );
279  }
280  }
281  $this->info( "Done." );
282  }
283 
289  private function dispatch( ...$args ) {
290  $pipes = $this->childPipes;
291  $x = [];
292  $y = [];
293  $numPipes = stream_select( $x, $pipes, $y, 3600 );
294  if ( !$numPipes ) {
295  $this->critical( "Error waiting to write to child process. Aborting" );
296  exit( 1 );
297  }
298  for ( $i = 0; $i < $this->numProcs; $i++ ) {
299  $childId = ( $i + $this->prevChildId + 1 ) % $this->numProcs;
300  if ( isset( $pipes[$childId] ) ) {
301  $this->prevChildId = $childId;
302  $this->dispatchToChild( $childId, $args );
303 
304  return;
305  }
306  }
307  $this->critical( "Unreachable" );
308  exit( 1 );
309  }
310 
316  private function dispatchToChild( $childId, $args ) {
317  $args = (array)$args;
318  $cmd = implode( ' ', $args );
319  fwrite( $this->childPipes[$childId], "$cmd\n" );
320  }
321 
325  private function doAllPages() {
326  $dbr = wfGetDB( DB_REPLICA );
327  $i = 0;
328  $startId = 0;
329  if ( $this->noCount ) {
330  $numPages = '[unknown]';
331  } else {
332  $numPages = $dbr->selectField( 'blob_tracking',
333  'COUNT(DISTINCT bt_page)',
334  # A condition is required so that this query uses the index
335  [ 'bt_moved' => 0 ],
336  __METHOD__
337  );
338  }
339  if ( $this->copyOnly ) {
340  $this->info( "Copying pages..." );
341  } else {
342  $this->info( "Moving pages..." );
343  }
344  while ( true ) {
345  $res = $dbr->select( 'blob_tracking',
346  [ 'bt_page' ],
347  [
348  'bt_moved' => 0,
349  'bt_page > ' . $dbr->addQuotes( $startId )
350  ],
351  __METHOD__,
352  [
353  'DISTINCT',
354  'ORDER BY' => 'bt_page',
355  'LIMIT' => $this->batchSize,
356  ]
357  );
358  if ( !$res->numRows() ) {
359  break;
360  }
361  foreach ( $res as $row ) {
362  $startId = $row->bt_page;
363  $this->dispatch( 'doPage', $row->bt_page );
364  $i++;
365  }
366  $this->report( 'pages', $i, $numPages );
367  }
368  $this->report( 'pages', $i, $numPages );
369  if ( $this->copyOnly ) {
370  $this->info( "All page copies queued." );
371  } else {
372  $this->info( "All page moves queued." );
373  }
374  }
375 
382  private function report( $label, $current, $end ) {
383  $this->numBatches++;
384  if ( $current == $end || $this->numBatches >= $this->reportingInterval ) {
385  $this->numBatches = 0;
386  $this->info( "$label: $current / $end" );
387  MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->waitForReplication();
388  }
389  }
390 
394  private function doAllOrphans() {
395  $dbr = wfGetDB( DB_REPLICA );
396  $startId = 0;
397  $i = 0;
398  if ( $this->noCount ) {
399  $numOrphans = '[unknown]';
400  } else {
401  $numOrphans = $dbr->selectField( 'blob_tracking',
402  'COUNT(DISTINCT bt_text_id)',
403  [ 'bt_moved' => 0, 'bt_page' => 0 ],
404  __METHOD__ );
405  if ( !$numOrphans ) {
406  return;
407  }
408  }
409  if ( $this->copyOnly ) {
410  $this->info( "Copying orphans..." );
411  } else {
412  $this->info( "Moving orphans..." );
413  }
414 
415  while ( true ) {
416  $res = $dbr->select( 'blob_tracking',
417  [ 'bt_text_id' ],
418  [
419  'bt_moved' => 0,
420  'bt_page' => 0,
421  'bt_text_id > ' . $dbr->addQuotes( $startId )
422  ],
423  __METHOD__,
424  [
425  'DISTINCT',
426  'ORDER BY' => 'bt_text_id',
427  'LIMIT' => $this->batchSize
428  ]
429  );
430  if ( !$res->numRows() ) {
431  break;
432  }
433  $ids = [];
434  foreach ( $res as $row ) {
435  $startId = $row->bt_text_id;
436  $ids[] = $row->bt_text_id;
437  $i++;
438  }
439  // Need to send enough orphan IDs to the child at a time to fill a blob,
440  // so orphanBatchSize needs to be at least ~100.
441  // batchSize can be smaller or larger.
442  while ( count( $ids ) > $this->orphanBatchSize ) {
443  $args = array_slice( $ids, 0, $this->orphanBatchSize );
444  $ids = array_slice( $ids, $this->orphanBatchSize );
445  array_unshift( $args, 'doOrphanList' );
446  $this->dispatch( ...$args );
447  }
448  if ( count( $ids ) ) {
449  $args = $ids;
450  array_unshift( $args, 'doOrphanList' );
451  $this->dispatch( ...$args );
452  }
453 
454  $this->report( 'orphans', $i, $numOrphans );
455  }
456  $this->report( 'orphans', $i, $numOrphans );
457  $this->info( "All orphans queued." );
458  }
459 
463  public function executeChild() {
464  $this->debug( 'starting' );
465  $this->syncDBs();
466 
467  while ( !feof( STDIN ) ) {
468  $line = rtrim( fgets( STDIN ) );
469  if ( $line == '' ) {
470  continue;
471  }
472  $this->debug( $line );
473  $args = explode( ' ', $line );
474  $cmd = array_shift( $args );
475  switch ( $cmd ) {
476  case 'doPage':
477  $this->doPage( intval( $args[0] ) );
478  break;
479  case 'doOrphanList':
480  $this->doOrphanList( array_map( 'intval', $args ) );
481  break;
482  case 'quit':
483  return;
484  }
485  MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->waitForReplication();
486  }
487  }
488 
494  private function doPage( $pageId ) {
495  $title = Title::newFromID( $pageId );
496  if ( $title ) {
497  $titleText = $title->getPrefixedText();
498  } else {
499  $titleText = '[deleted]';
500  }
501  $dbr = wfGetDB( DB_REPLICA );
502 
503  // Finish any incomplete transactions
504  if ( !$this->copyOnly ) {
505  $this->finishIncompleteMoves( [ 'bt_page' => $pageId ] );
506  $this->syncDBs();
507  }
508 
509  $startId = 0;
510  $trx = new CgzCopyTransaction( $this, $this->pageBlobClass );
511 
512  $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
513  while ( true ) {
514  $res = $dbr->select(
515  [ 'blob_tracking', 'text' ],
516  '*',
517  [
518  'bt_page' => $pageId,
519  'bt_text_id > ' . $dbr->addQuotes( $startId ),
520  'bt_moved' => 0,
521  'bt_new_url IS NULL',
522  'bt_text_id=old_id',
523  ],
524  __METHOD__,
525  [
526  'ORDER BY' => 'bt_text_id',
527  'LIMIT' => $this->batchSize
528  ]
529  );
530  if ( !$res->numRows() ) {
531  break;
532  }
533 
534  $lastTextId = 0;
535  foreach ( $res as $row ) {
536  $startId = $row->bt_text_id;
537  if ( $lastTextId == $row->bt_text_id ) {
538  // Duplicate (null edit)
539  continue;
540  }
541  $lastTextId = $row->bt_text_id;
542  // Load the text
543  $text = $this->blobStore->expandBlob( $row->old_text, $row->old_flags );
544  if ( $text === false ) {
545  $this->critical( "Error loading {$row->bt_rev_id}/{$row->bt_text_id}" );
546  continue;
547  }
548 
549  // Queue it
550  if ( !$trx->addItem( $text, $row->bt_text_id ) ) {
551  $this->debug( "$titleText: committing blob with " . $trx->getSize() . " items" );
552  $trx->commit();
553  $trx = new CgzCopyTransaction( $this, $this->pageBlobClass );
554  $lbFactory->waitForReplication();
555  }
556  }
557  }
558 
559  $this->debug( "$titleText: committing blob with " . $trx->getSize() . " items" );
560  $trx->commit();
561  }
562 
576  public function moveTextRow( $textId, $url ) {
577  if ( $this->copyOnly ) {
578  $this->critical( "Internal error: can't call moveTextRow() in --copy-only mode" );
579  exit( 1 );
580  }
581  $dbw = wfGetDB( DB_PRIMARY );
582  $dbw->begin( __METHOD__ );
583  $dbw->update( 'text',
584  [ // set
585  'old_text' => $url,
586  'old_flags' => 'external,utf-8',
587  ],
588  [ // where
589  'old_id' => $textId
590  ],
591  __METHOD__
592  );
593  $dbw->update( 'blob_tracking',
594  [ 'bt_moved' => 1 ],
595  [ 'bt_text_id' => $textId ],
596  __METHOD__
597  );
598  $dbw->commit( __METHOD__ );
599  }
600 
611  private function finishIncompleteMoves( $conds ) {
612  $dbr = wfGetDB( DB_REPLICA );
613  $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
614 
615  $startId = 0;
616  $conds = array_merge( $conds, [
617  'bt_moved' => 0,
618  'bt_new_url IS NOT NULL'
619  ] );
620  while ( true ) {
621  $res = $dbr->select( 'blob_tracking',
622  '*',
623  array_merge( $conds, [ 'bt_text_id > ' . $dbr->addQuotes( $startId ) ] ),
624  __METHOD__,
625  [
626  'ORDER BY' => 'bt_text_id',
627  'LIMIT' => $this->batchSize,
628  ]
629  );
630  if ( !$res->numRows() ) {
631  break;
632  }
633  $this->debug( 'Incomplete: ' . $res->numRows() . ' rows' );
634  foreach ( $res as $row ) {
635  $startId = $row->bt_text_id;
636  $this->moveTextRow( $row->bt_text_id, $row->bt_new_url );
637  if ( $row->bt_text_id % 10 == 0 ) {
638  $lbFactory->waitForReplication();
639  }
640  }
641  }
642  }
643 
648  public function getTargetCluster() {
649  $cluster = next( $this->destClusters );
650  if ( $cluster === false ) {
651  $cluster = reset( $this->destClusters );
652  }
653 
654  return $cluster;
655  }
656 
662  private function doOrphanList( $textIds ) {
663  // Finish incomplete moves
664  if ( !$this->copyOnly ) {
665  $this->finishIncompleteMoves( [ 'bt_text_id' => $textIds ] );
666  $this->syncDBs();
667  }
668 
669  $trx = new CgzCopyTransaction( $this, $this->orphanBlobClass );
670 
671  $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
672  $res = wfGetDB( DB_REPLICA )->select(
673  [ 'text', 'blob_tracking' ],
674  [ 'old_id', 'old_text', 'old_flags' ],
675  [
676  'old_id' => $textIds,
677  'bt_text_id=old_id',
678  'bt_moved' => 0,
679  ],
680  __METHOD__,
681  [ 'DISTINCT' ]
682  );
683 
684  foreach ( $res as $row ) {
685  $text = $this->blobStore->expandBlob( $row->old_text, $row->old_flags );
686  if ( $text === false ) {
687  $this->critical( "Error: cannot load revision text for old_id={$row->old_id}" );
688  continue;
689  }
690 
691  if ( !$trx->addItem( $text, $row->old_id ) ) {
692  $this->debug( "[orphan]: committing blob with " . $trx->getSize() . " rows" );
693  $trx->commit();
694  $trx = new CgzCopyTransaction( $this, $this->orphanBlobClass );
695  $lbFactory->waitForReplication();
696  }
697  }
698  $this->debug( "[orphan]: committing blob with " . $trx->getSize() . " rows" );
699  $trx->commit();
700  }
701 }
702 
708  public $parent;
709  public $blobClass;
711  public $cgz;
712  public $referrers;
714  private $texts;
715 
721  public function __construct( $parent, $blobClass ) {
722  $this->blobClass = $blobClass;
723  $this->cgz = false;
724  $this->texts = [];
725  $this->parent = $parent;
726  }
727 
735  public function addItem( $text, $textId ) {
736  if ( !$this->cgz ) {
737  $class = $this->blobClass;
738  $this->cgz = new $class;
739  }
740  $hash = $this->cgz->addItem( $text );
741  $this->referrers[$textId] = $hash;
742  $this->texts[$textId] = $text;
743 
744  return $this->cgz->isHappy();
745  }
746 
747  public function getSize() {
748  return count( $this->texts );
749  }
750 
754  public function recompress() {
755  $class = $this->blobClass;
756  $this->cgz = new $class;
757  $this->referrers = [];
758  foreach ( $this->texts as $textId => $text ) {
759  $hash = $this->cgz->addItem( $text );
760  $this->referrers[$textId] = $hash;
761  }
762  }
763 
769  public function commit() {
770  $originalCount = count( $this->texts );
771  if ( !$originalCount ) {
772  return;
773  }
774 
775  /* Check to see if the target text_ids have been moved already.
776  *
777  * We originally read from the replica DB, so this can happen when a single
778  * text_id is shared between multiple pages. It's rare, but possible
779  * if a delete/move/undelete cycle splits up a null edit.
780  *
781  * We do a locking read to prevent closer-run race conditions.
782  */
783  $dbw = wfGetDB( DB_PRIMARY );
784  $dbw->begin( __METHOD__ );
785  $res = $dbw->select( 'blob_tracking',
786  [ 'bt_text_id', 'bt_moved' ],
787  [ 'bt_text_id' => array_keys( $this->referrers ) ],
788  __METHOD__, [ 'FOR UPDATE' ] );
789  $dirty = false;
790  foreach ( $res as $row ) {
791  if ( $row->bt_moved ) {
792  # This row has already been moved, remove it
793  $this->parent->debug( "TRX: conflict detected in old_id={$row->bt_text_id}" );
794  unset( $this->texts[$row->bt_text_id] );
795  $dirty = true;
796  }
797  }
798 
799  // Recompress the blob if necessary
800  if ( $dirty ) {
801  if ( !count( $this->texts ) ) {
802  // All have been moved already
803  if ( $originalCount > 1 ) {
804  // This is suspcious, make noise
805  $this->parent->critical(
806  "Warning: concurrent operation detected, are there two conflicting " .
807  "processes running, doing the same job?" );
808  }
809 
810  return;
811  }
812  $this->recompress();
813  }
814 
815  // Insert the data into the destination cluster
816  $targetCluster = $this->parent->getTargetCluster();
817  $store = $this->parent->store;
818  $targetDB = $store->getPrimary( $targetCluster );
819  $targetDB->clearFlag( DBO_TRX ); // we manage the transactions
820  $targetDB->begin( __METHOD__ );
821  $baseUrl = $this->parent->store->store( $targetCluster, serialize( $this->cgz ) );
822 
823  // Write the new URLs to the blob_tracking table
824  foreach ( $this->referrers as $textId => $hash ) {
825  $url = $baseUrl . '/' . $hash;
826  $dbw->update( 'blob_tracking',
827  [ 'bt_new_url' => $url ],
828  [
829  'bt_text_id' => $textId,
830  'bt_moved' => 0, # Check for concurrent conflicting update
831  ],
832  __METHOD__
833  );
834  }
835 
836  $targetDB->commit( __METHOD__ );
837  // Critical section here: interruption at this point causes blob duplication
838  // Reversing the order of the commits would cause data loss instead
839  $dbw->commit( __METHOD__ );
840 
841  // Write the new URLs to the text table and set the moved flag
842  if ( !$this->parent->copyOnly ) {
843  foreach ( $this->referrers as $textId => $hash ) {
844  $url = $baseUrl . '/' . $hash;
845  $this->parent->moveTextRow( $textId, $url );
846  }
847  }
848  }
849 }
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
wfHostname()
Get host name of the current machine, for use in error reporting.
Class to represent a recompression operation for a single CGZ blob.
RecompressTracked $parent
ConcatenatedGzipHistoryBlob false $cgz
addItem( $text, $textId)
Add text.
commit()
Commit the blob.
recompress()
Recompress text after some aberrant modification.
__construct( $parent, $blobClass)
Create a transaction from a RecompressTracked object.
getPrimary( $cluster)
Get a primary database connection for the specified cluster.
store( $location, $data)
Insert a data item into a given location.The location name The data item string|bool The URL of the s...
PSR-3 logger that mimics the historic implementation of MediaWiki's former wfErrorLog logging impleme...
Service locator for MediaWiki core services.
Executes shell commands.
Definition: Shell.php:46
Service for storing and loading Content objects representing revision data blobs.
Maintenance script that moves blobs indexed by trackBlobs.php to a specified list of destination clus...
executeChild()
Main entry point for worker processes.
moveTextRow( $textId, $url)
Atomic move operation.
execute()
Execute parent or child depending on the isChild option.
static newFromCommandLine( $args, $options)
getTargetCluster()
Returns the name of the next target cluster.
executeParent()
Execute the parent process.
ExternalStoreDB $store
static newFromID( $id, $flags=0)
Create a new Title from an article ID.
Definition: Title.php:521
static getCurrentWikiId()
Definition: WikiMap.php:303
static getCurrentWikiDbDomain()
Definition: WikiMap.php:293
$line
Definition: mcc.php:119
if( $line===false) $args
Definition: mcc.php:124
const DB_REPLICA
Definition: defines.php:26
const DB_PRIMARY
Definition: defines.php:28
const DBO_TRX
Definition: defines.php:12
$optionsWithArgs
if(count( $args)< 1) $job
if(PHP_SAPI !='cli-server') if(!isset( $_SERVER['SCRIPT_FILENAME'])) $file
Item class for a filearchive table row.
Definition: router.php:42
$header