maintenance/upgrade1_5.php

   1 <?php
   2
   3 // Alternate 1.4 -> 1.5 schema upgrade
   4 // This does only the main tables + UTF-8
   5 // and is designed to allow upgrades to interleave
   6 // with other updates on the replication stream so
   7 // that large wikis can be upgraded without disrupting
   8 // other services.
   9 //
  10 // Note: this script DOES NOT apply every update, nor
  11 // will it probably handle much older versions, etc.
  12 // Run this, FOLLOWED BY update.php, for upgrading
  13 // from 1.4.5 release to 1.5.
  14
  15 $options = array( 'step' );
  16
  17 require_once( 'commandLine.inc' );
  18 require_once( 'cleanupDupes.inc' );
  19 require_once( 'userDupes.inc' );
  20 require_once( 'updaters.inc' );
  21
  22 define( 'MW_UPGRADE_COPY',     false );
  23 define( 'MW_UPGRADE_ENCODE',   true  );
  24 define( 'MW_UPGRADE_NULL',     null  );
  25 define( 'MW_UPGRADE_CALLBACK', null  ); // for self-documentation only
  26
  27 class FiveUpgrade {
  28         function FiveUpgrade() {
  29                 global $wgDatabase;
  30                 $this->conversionTables = $this->prepareWindows1252();
  31
  32                 $this->dbw =& $this->newConnection();
  33                 $this->dbr =& $this->newConnection();
  34                 $this->dbr->bufferResults( false );
  35                 $this->slave =& wfGetDB( DB_SLAVE );
  36
  37                 $this->cleanupSwaps = array();
  38                 $this->emailAuth = false; # don't preauthenticate emails
  39                 $this->maxLag    = 10; # if slaves are lagged more than 10 secs, wait
  40         }
  41
  42         function doing( $step ) {
  43                 return is_null( $this->step ) || $step == $this->step;
  44         }
  45
  46         function upgrade( $step ) {
  47                 $this->step = $step;
  48
  49                 $tables = array(
  50                         'page',
  51                         'links',
  52                         'user',
  53                         'image',
  54                         'oldimage',
  55                         'watchlist',
  56                         'logging',
  57                         'archive',
  58                         'imagelinks',
  59                         'categorylinks',
  60                         'ipblocks',
  61                         'recentchanges',
  62                         'querycache' );
  63                 foreach( $tables as $table ) {
  64                         if( $this->doing( $table ) ) {
  65                                 $method = 'upgrade' . ucfirst( $table );
  66                                 $this->$method();
  67                         }
  68                 }
  69
  70                 if( $this->doing( 'cleanup' ) ) {
  71                         $this->upgradeCleanup();
  72                 }
  73         }
  74
  75
  76         /**
  77          * Open a second connection to the master server, with buffering off.
  78          * This will let us stream large datasets in and write in chunks on the
  79          * other end.
  80          * @return Database
  81          * @access private
  82          */
  83         function &newConnection() {
  84                 global $wgDBadminuser, $wgDBadminpassword;
  85                 global $wgDBserver, $wgDBname;
  86                 $db =& new Database( $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname );
  87                 return $db;
  88         }
  89
  90         /**
  91          * Prepare a conversion array for converting Windows Code Page 1252 to
  92          * UTF-8. This should provide proper conversion of text that was miscoded
  93          * as Windows-1252 by naughty user-agents, and doesn't rely on an outside
  94          * iconv library.
  95          *
  96          * @return array
  97          * @access private
  98          */
  99         function prepareWindows1252() {
 100                 # Mappings from:
 101                 # http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1252.TXT
 102                 static $cp1252 = array(
 103                         0x80 => 0x20AC, #EURO SIGN
 104                         0x81 => UNICODE_REPLACEMENT,
 105                         0x82 => 0x201A, #SINGLE LOW-9 QUOTATION MARK
 106                         0x83 => 0x0192, #LATIN SMALL LETTER F WITH HOOK
 107                         0x84 => 0x201E, #DOUBLE LOW-9 QUOTATION MARK
 108                         0x85 => 0x2026, #HORIZONTAL ELLIPSIS
 109                         0x86 => 0x2020, #DAGGER
 110                         0x87 => 0x2021, #DOUBLE DAGGER
 111                         0x88 => 0x02C6, #MODIFIER LETTER CIRCUMFLEX ACCENT
 112                         0x89 => 0x2030, #PER MILLE SIGN
 113                         0x8A => 0x0160, #LATIN CAPITAL LETTER S WITH CARON
 114                         0x8B => 0x2039, #SINGLE LEFT-POINTING ANGLE QUOTATION MARK
 115                         0x8C => 0x0152, #LATIN CAPITAL LIGATURE OE
 116                         0x8D => UNICODE_REPLACEMENT,
 117                         0x8E => 0x017D, #LATIN CAPITAL LETTER Z WITH CARON
 118                         0x8F => UNICODE_REPLACEMENT,
 119                         0x90 => UNICODE_REPLACEMENT,
 120                         0x91 => 0x2018, #LEFT SINGLE QUOTATION MARK
 121                         0x92 => 0x2019, #RIGHT SINGLE QUOTATION MARK
 122                         0x93 => 0x201C, #LEFT DOUBLE QUOTATION MARK
 123                         0x94 => 0x201D, #RIGHT DOUBLE QUOTATION MARK
 124                         0x95 => 0x2022, #BULLET
 125                         0x96 => 0x2013, #EN DASH
 126                         0x97 => 0x2014, #EM DASH
 127                         0x98 => 0x02DC, #SMALL TILDE
 128                         0x99 => 0x2122, #TRADE MARK SIGN
 129                         0x9A => 0x0161, #LATIN SMALL LETTER S WITH CARON
 130                         0x9B => 0x203A, #SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
 131                         0x9C => 0x0153, #LATIN SMALL LIGATURE OE
 132                         0x9D => UNICODE_REPLACEMENT,
 133                         0x9E => 0x017E, #LATIN SMALL LETTER Z WITH CARON
 134                         0x9F => 0x0178, #LATIN CAPITAL LETTER Y WITH DIAERESIS
 135                         );
 136                 $pairs = array();
 137                 for( $i = 0; $i < 0x100; $i++ ) {
 138                         $unicode = isset( $cp1252[$i] ) ? $cp1252[$i] : $i;
 139                         $pairs[chr( $i )] = codepointToUtf8( $unicode );
 140                 }
 141                 return $pairs;
 142         }
 143
 144         /**
 145          * Convert from 8-bit Windows-1252 to UTF-8 if necessary.
 146          * @param string $text
 147          * @return string
 148          * @access private
 149          */
 150         function conv( $text ) {
 151                 global $wgUseLatin1;
 152                 return is_null( $text )
 153                         ? null
 154                         : ( $wgUseLatin1
 155                                 ? strtr( $text, $this->conversionTables )
 156                                 : $text );
 157         }
 158
 159         /**
 160          * Dump timestamp and message to output
 161          * @param string $message
 162          * @access private
 163          */
 164         function log( $message ) {
 165                 echo wfTimestamp( TS_DB ) . ': ' . $message . "\n";
 166                 flush();
 167         }
 168
 169         /**
 170          * Initialize the chunked-insert system.
 171          * Rows will be inserted in chunks of the given number, rather
 172          * than in a giant INSERT...SELECT query, to keep the serialized
 173          * MySQL database replication from getting hung up. This way other
 174          * things can be going on during conversion without waiting for
 175          * slaves to catch up as badly.
 176          *
 177          * @param int $chunksize Number of rows to insert at once
 178          * @param int $final Total expected number of rows / id of last row,
 179          *                   used for progress reports.
 180          * @param string $table to insert on
 181          * @param string $fname function name to report in SQL
 182          * @access private
 183          */
 184         function setChunkScale( $chunksize, $final, $table, $fname ) {
 185                 $this->chunkSize  = $chunksize;
 186                 $this->chunkFinal = $final;
 187                 $this->chunkCount = 0;
 188                 $this->chunkStartTime = wfTime();
 189                 $this->chunkOptions = array();
 190                 $this->chunkTable = $table;
 191                 $this->chunkFunction = $fname;
 192         }
 193
 194         /**
 195          * Chunked inserts: perform an insert if we've reached the chunk limit.
 196          * Prints a progress report with estimated completion time.
 197          * @param array &$chunk -- This will be emptied if an insert is done.
 198          * @param int $key A key identifier to use in progress estimation in
 199          *                 place of the number of rows inserted. Use this if
 200          *                 you provided a max key number instead of a count
 201          *                 as the final chunk number in setChunkScale()
 202          * @access private
 203          */
 204         function addChunk( &$chunk, $key = null ) {
 205                 if( count( $chunk ) >= $this->chunkSize ) {
 206                         $this->insertChunk( $chunk );
 207
 208                         $this->chunkCount += count( $chunk );
 209                         $now = wfTime();
 210                         $delta = $now - $this->chunkStartTime;
 211                         $rate = $this->chunkCount / $delta;
 212
 213                         if( is_null( $key ) ) {
 214                                 $completed = $this->chunkCount;
 215                         } else {
 216                                 $completed = $key;
 217                         }
 218                         $portion = $completed / $this->chunkFinal;
 219
 220                         $estimatedTotalTime = $delta / $portion;
 221                         $eta = $this->chunkStartTime + $estimatedTotalTime;
 222
 223                         printf( "%s: %6.2f%% done on %s; ETA %s [%d/%d] %.2f/sec\n",
 224                                 wfTimestamp( TS_DB, intval( $now ) ),
 225                                 $portion * 100.0,
 226                                 $this->chunkTable,
 227                                 wfTimestamp( TS_DB, intval( $eta ) ),
 228                                 $completed,
 229                                 $this->chunkFinal,
 230                                 $rate );
 231                         flush();
 232
 233                         $chunk = array();
 234                 }
 235         }
 236
 237         /**
 238          * Chunked inserts: perform an insert unconditionally, at the end, and log.
 239          * @param array &$chunk -- This will be emptied if an insert is done.
 240          * @access private
 241          */
 242         function lastChunk( &$chunk ) {
 243                 $n = count( $chunk );
 244                 if( $n > 0 ) {
 245                         $this->insertChunk( $chunk );
 246                 }
 247                 $this->log( "100.00% done on $this->chunkTable (last chunk $n rows)." );
 248         }
 249
 250         /**
 251          * Chunked inserts: perform an insert.
 252          * @param array &$chunk -- This will be emptied if an insert is done.
 253          * @access private
 254          */
 255         function insertChunk( &$chunk ) {
 256                 // Give slaves a chance to catch up
 257                 wfWaitForSlaves( $this->maxLag );
 258                 $this->dbw->insert( $this->chunkTable, $chunk, $this->chunkFunction, $this->chunkOptions );
 259         }
 260
 261
 262         /**
 263          * Copy and transcode a table to table_temp.
 264          * @param string $name Base name of the source table
 265          * @param string $tabledef CREATE TABLE definition, w/ $1 for the name
 266          * @param array $fields set of destination fields to these constants:
 267          *              MW_UPGRADE_COPY   - straight copy
 268          *              MW_UPGRADE_ENCODE - for old Latin1 wikis, conv to UTF-8
 269          *              MW_UPGRADE_NULL   - just put NULL
 270          * @param callable $callback An optional callback to modify the data
 271          *                           or perform other processing. Func should be
 272          *                           ( object $row, array $copy ) and return $copy
 273          * @access private
 274          */
 275         function copyTable( $name, $tabledef, $fields, $callback = null ) {
 276                 $fname = 'FiveUpgrade::copyTable';
 277
 278                 $name_temp = $name . '_temp';
 279                 $this->log( "Migrating $name table to $name_temp..." );
 280
 281                 $table      = $this->dbw->tableName( $name );
 282                 $table_temp = $this->dbw->tableName( $name_temp );
 283
 284                 // Create temporary table; we're going to copy everything in there,
 285                 // then at the end rename the final tables into place.
 286                 $def = str_replace( '$1', $table_temp, $tabledef );
 287                 $this->dbw->query( $def, $fname );
 288
 289                 $numRecords = $this->dbw->selectField( $name, 'COUNT(*)', '', $fname );
 290                 $this->setChunkScale( 100, $numRecords, $name_temp, $fname );
 291
 292                 // Pull all records from the second, streaming database connection.
 293                 $sourceFields = array_keys( array_filter( $fields,
 294                         create_function( '$x', 'return $x !== MW_UPGRADE_NULL;' ) ) );
 295                 $result = $this->dbr->select( $name,
 296                         $sourceFields,
 297                         '',
 298                         $fname );
 299
 300                 $add = array();
 301                 while( $row = $this->dbr->fetchObject( $result ) ) {
 302                         $copy = array();
 303                         foreach( $fields as $field => $source ) {
 304                                 if( $source === MW_UPGRADE_COPY ) {
 305                                         $copy[$field] = $row->$field;
 306                                 } elseif( $source === MW_UPGRADE_ENCODE ) {
 307                                         $copy[$field] = $this->conv( $row->$field );
 308                                 } elseif( $source === MW_UPGRADE_NULL ) {
 309                                         $copy[$field] = null;
 310                                 } else {
 311                                         $this->log( "Unknown field copy type: $field => $source" );
 312                                 }
 313                         }
 314                         if( is_callable( $callback ) ) {
 315                                 $copy = call_user_func( $callback, $row, $copy );
 316                         }
 317                         $add[] = $copy;
 318                         $this->addChunk( $add );
 319                 }
 320                 $this->lastChunk( $add );
 321                 $this->dbr->freeResult( $result );
 322
 323                 $this->log( "Done converting $name." );
 324                 $this->cleanupSwaps[] = $name;
 325         }
 326
 327         function upgradePage() {
 328                 $fname = "FiveUpgrade::upgradePage";
 329                 $chunksize = 100;
 330
 331                 if( $this->dbw->tableExists( 'page' ) ) {
 332                         $this->log( 'Page table already exists; aborting.' );
 333                         die( -1 );
 334                 }
 335
 336                 $this->log( "Checking cur table for unique title index and applying if necessary" );
 337                 checkDupes( true );
 338
 339                 $this->log( "...converting from cur/old to page/revision/text DB structure." );
 340
 341                 extract( $this->dbw->tableNames( 'cur', 'old', 'page', 'revision', 'text' ) );
 342
 343                 $this->log( "Creating page and revision tables..." );
 344                 $this->dbw->query("CREATE TABLE $page (
 345                         page_id int(8) unsigned NOT NULL auto_increment,
 346                         page_namespace int NOT NULL,
 347                         page_title varchar(255) binary NOT NULL,
 348                         page_restrictions tinyblob NOT NULL default '',
 349                         page_counter bigint(20) unsigned NOT NULL default '0',
 350                         page_is_redirect tinyint(1) unsigned NOT NULL default '0',
 351                         page_is_new tinyint(1) unsigned NOT NULL default '0',
 352                         page_random real unsigned NOT NULL,
 353                         page_touched char(14) binary NOT NULL default '',
 354                         page_latest int(8) unsigned NOT NULL,
 355                         page_len int(8) unsigned NOT NULL,
 356
 357                         PRIMARY KEY page_id (page_id),
 358                         UNIQUE INDEX name_title (page_namespace,page_title),
 359                         INDEX (page_random),
 360                         INDEX (page_len)
 361                         ) TYPE=InnoDB", $fname );
 362                 $this->dbw->query("CREATE TABLE $revision (
 363                         rev_id int(8) unsigned NOT NULL auto_increment,
 364                         rev_page int(8) unsigned NOT NULL,
 365                         rev_text_id int(8) unsigned NOT NULL,
 366                         rev_comment tinyblob NOT NULL default '',
 367                         rev_user int(5) unsigned NOT NULL default '0',
 368                         rev_user_text varchar(255) binary NOT NULL default '',
 369                         rev_timestamp char(14) binary NOT NULL default '',
 370                         rev_minor_edit tinyint(1) unsigned NOT NULL default '0',
 371                         rev_deleted tinyint(1) unsigned NOT NULL default '0',
 372
 373                         PRIMARY KEY rev_page_id (rev_page, rev_id),
 374                         UNIQUE INDEX rev_id (rev_id),
 375                         INDEX rev_timestamp (rev_timestamp),
 376                         INDEX page_timestamp (rev_page,rev_timestamp),
 377                         INDEX user_timestamp (rev_user,rev_timestamp),
 378                         INDEX usertext_timestamp (rev_user_text,rev_timestamp)
 379                         ) TYPE=InnoDB", $fname );
 380
 381                 $maxold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 382                 $this->log( "Last old record is {$maxold}" );
 383
 384                 global $wgLegacySchemaConversion;
 385                 if( $wgLegacySchemaConversion ) {
 386                         // Create HistoryBlobCurStub entries.
 387                         // Text will be pulled from the leftover 'cur' table at runtime.
 388                         echo "......Moving metadata from cur; using blob references to text in cur table.\n";
 389                         $cur_text = "concat('O:18:\"historyblobcurstub\":1:{s:6:\"mCurId\";i:',cur_id,';}')";
 390                         $cur_flags = "'object'";
 391                 } else {
 392                         // Copy all cur text in immediately: this may take longer but avoids
 393                         // having to keep an extra table around.
 394                         echo "......Moving text from cur.\n";
 395                         $cur_text = 'cur_text';
 396                         $cur_flags = "''";
 397                 }
 398
 399                 $maxcur = $this->dbw->selectField( 'cur', 'max(cur_id)', '', $fname );
 400                 $this->log( "Last cur entry is $maxcur" );
 401
 402                 /**
 403                  * Copy placeholder records for each page's current version into old
 404                  * Don't do any conversion here; text records are converted at runtime
 405                  * based on the flags (and may be originally binary!) while the meta
 406                  * fields will be converted in the old -> rev and cur -> page steps.
 407                  */
 408                 $this->setChunkScale( $chunksize, $maxcur, 'old', $fname );
 409                 $result = $this->dbr->query(
 410                         "SELECT cur_id, cur_namespace, cur_title, $cur_text AS text, cur_comment,
 411                         cur_user, cur_user_text, cur_timestamp, cur_minor_edit, $cur_flags AS flags
 412                         FROM $cur
 413                         ORDER BY cur_id", $fname );
 414                 $add = array();
 415                 while( $row = $this->dbr->fetchObject( $result ) ) {
 416                         $add[] = array(
 417                                 'old_namespace'  => $row->cur_namespace,
 418                                 'old_title'      => $row->cur_title,
 419                                 'old_text'       => $row->text,
 420                                 'old_comment'    => $row->cur_comment,
 421                                 'old_user'       => $row->cur_user,
 422                                 'old_user_text'  => $row->cur_user_text,
 423                                 'old_timestamp'  => $row->cur_timestamp,
 424                                 'old_minor_edit' => $row->cur_minor_edit,
 425                                 'old_flags'      => $row->flags );
 426                         $this->addChunk( $add, $row->cur_id );
 427                 }
 428                 $this->lastChunk( $add );
 429                 $this->dbr->freeResult( $result );
 430
 431                 /**
 432                  * Copy revision metadata from old into revision.
 433                  * We'll also do UTF-8 conversion of usernames and comments.
 434                  */
 435                 #$newmaxold = $this->dbw->selectField( 'old', 'max(old_id)', '', $fname );
 436                 #$this->setChunkScale( $chunksize, $newmaxold, 'revision', $fname );
 437                 $countold = $this->dbw->selectField( 'old', 'count(old_id)', '', $fname );
 438                 $this->setChunkScale( $chunksize, $countold, 'revision', $fname );
 439
 440                 $this->log( "......Setting up revision table." );
 441                 $result = $this->dbr->query(
 442                         "SELECT old_id, cur_id, old_comment, old_user, old_user_text,
 443                         old_timestamp, old_minor_edit
 444                         FROM $old,$cur WHERE old_namespace=cur_namespace AND old_title=cur_title",
 445                         $fname );
 446
 447                 $add = array();
 448                 while( $row = $this->dbr->fetchObject( $result ) ) {
 449                         $add[] = array(
 450                                 'rev_id'         =>              $row->old_id,
 451                                 'rev_page'       =>              $row->cur_id,
 452                                 'rev_text_id'    =>              $row->old_id,
 453                                 'rev_comment'    => $this->conv( $row->old_comment ),
 454                                 'rev_user'       =>              $row->old_user,
 455                                 'rev_user_text'  => $this->conv( $row->old_user_text ),
 456                                 'rev_timestamp'  =>              $row->old_timestamp,
 457                                 'rev_minor_edit' =>              $row->old_minor_edit );
 458                         $this->addChunk( $add );
 459                 }
 460                 $this->lastChunk( $add );
 461                 $this->dbr->freeResult( $result );
 462
 463
 464                 /**
 465                  * Copy page metadata from cur into page.
 466                  * We'll also do UTF-8 conversion of titles.
 467                  */
 468                 $this->log( "......Setting up page table." );
 469                 $this->setChunkScale( $chunksize, $maxcur, 'page', $fname );
 470                 $result = $this->dbr->query( "
 471                         SELECT cur_id, cur_namespace, cur_title, cur_restrictions, cur_counter, cur_is_redirect, cur_is_new,
 472                                 cur_random, cur_touched, rev_id, LENGTH(cur_text) AS len
 473                         FROM $cur,$revision
 474                         WHERE cur_id=rev_page AND rev_timestamp=cur_timestamp AND rev_id > {$maxold}
 475                         ORDER BY cur_id", $fname );
 476                 $add = array();
 477                 while( $row = $this->dbr->fetchObject( $result ) ) {
 478                         $add[] = array(
 479                                 'page_id'           =>              $row->cur_id,
 480                                 'page_namespace'    =>              $row->cur_namespace,
 481                                 'page_title'        => $this->conv( $row->cur_title ),
 482                                 'page_restrictions' =>              $row->cur_restrictions,
 483                                 'page_counter'      =>              $row->cur_counter,
 484                                 'page_is_redirect'  =>              $row->cur_is_redirect,
 485                                 'page_is_new'       =>              $row->cur_is_new,
 486                                 'page_random'       =>              $row->cur_random,
 487                                 'page_touched'      =>              $this->dbw->timestamp(),
 488                                 'page_latest'       =>              $row->rev_id,
 489                                 'page_len'          =>              $row->len );
 490                         $this->addChunk( $add, $row->cur_id );
 491                 }
 492                 $this->lastChunk( $add );
 493                 $this->dbr->freeResult( $result );
 494
 495                 $this->log( "...done with cur/old -> page/revision." );
 496         }
 497
 498         function upgradeLinks() {
 499                 $fname = 'FiveUpgrade::upgradeLinks';
 500                 $chunksize = 200;
 501                 extract( $this->dbw->tableNames( 'links', 'brokenlinks', 'pagelinks', 'page' ) );
 502
 503                 $this->log( 'Creating pagelinks table...' );
 504                 $this->dbw->query( "
 505 CREATE TABLE $pagelinks (
 506   -- Key to the page_id of the page containing the link.
 507   pl_from int(8) unsigned NOT NULL default '0',
 508
 509   -- Key to page_namespace/page_title of the target page.
 510   -- The target page may or may not exist, and due to renames
 511   -- and deletions may refer to different page records as time
 512   -- goes by.
 513   pl_namespace int NOT NULL default '0',
 514   pl_title varchar(255) binary NOT NULL default '',
 515
 516   UNIQUE KEY pl_from(pl_from,pl_namespace,pl_title),
 517   KEY (pl_namespace,pl_title)
 518
 519 ) TYPE=InnoDB" );
 520
 521                 $this->log( 'Importing live links -> pagelinks' );
 522                 $nlinks = $this->dbw->selectField( 'links', 'count(*)', '', $fname );
 523                 if( $nlinks ) {
 524                         $this->setChunkScale( $chunksize, $nlinks, 'pagelinks', $fname );
 525                         $result = $this->dbr->query( "
 526                           SELECT l_from,page_namespace,page_title
 527                                 FROM $links, $page
 528                                 WHERE l_to=page_id", $fname );
 529                         $add = array();
 530                         while( $row = $this->dbr->fetchObject( $result ) ) {
 531                                 $add[] = array(
 532                                         'pl_from'      => $row->l_from,
 533                                         'pl_namespace' => $row->page_namespace,
 534                                         'pl_title'     => $row->page_title );
 535                                 $this->addChunk( $add );
 536                         }
 537                         $this->lastChunk( $add );
 538                 } else {
 539                         $this->log( 'no links!' );
 540                 }
 541
 542                 $this->log( 'Importing brokenlinks -> pagelinks' );
 543                 $nbrokenlinks = $this->dbw->selectField( 'brokenlinks', 'count(*)', '', $fname );
 544                 if( $nbrokenlinks ) {
 545                         $this->setChunkScale( $chunksize, $nbrokenlinks, 'pagelinks', $fname );
 546                         $this->chunkOptions = array( 'IGNORE' );
 547                         $result = $this->dbr->query(
 548                                 "SELECT bl_from, bl_to FROM $brokenlinks",
 549                                 $fname );
 550                         $add = array();
 551                         while( $row = $this->dbr->fetchObject( $result ) ) {
 552                                 $pagename = $this->conv( $row->bl_to );
 553                                 $title = Title::newFromText( $pagename );
 554                                 if( is_null( $title ) ) {
 555                                         $this->log( "** invalid brokenlink: $row->bl_from -> '$pagename' (converted from '$row->bl_to')" );
 556                                 } else {
 557                                         $add[] = array(
 558                                                 'pl_from'      => $row->bl_from,
 559                                                 'pl_namespace' => $title->getNamespace(),
 560                                                 'pl_title'     => $title->getDBkey() );
 561                                         $this->addChunk( $add );
 562                                 }
 563                         }
 564                         $this->lastChunk( $add );
 565                 } else {
 566                         $this->log( 'no brokenlinks!' );
 567                 }
 568
 569                 $this->log( 'Done with links.' );
 570         }
 571
 572         function upgradeUser() {
 573                 // Apply unique index, if necessary:
 574                 $duper = new UserDupes( $this->dbw );
 575                 if( $duper->hasUniqueIndex() ) {
 576                         $this->log( "Already have unique user_name index." );
 577                 } else {
 578                         $this->log( "Clearing user duplicates..." );
 579                         if( !$duper->clearDupes() ) {
 580                                 $this->log( "WARNING: Duplicate user accounts, may explode!" );
 581                         }
 582                 }
 583
 584                 $tabledef = <<<END
 585 CREATE TABLE $1 (
 586   user_id int(5) unsigned NOT NULL auto_increment,
 587   user_name varchar(255) binary NOT NULL default '',
 588   user_real_name varchar(255) binary NOT NULL default '',
 589   user_password tinyblob NOT NULL default '',
 590   user_newpassword tinyblob NOT NULL default '',
 591   user_email tinytext NOT NULL default '',
 592   user_options blob NOT NULL default '',
 593   user_touched char(14) binary NOT NULL default '',
 594   user_token char(32) binary NOT NULL default '',
 595   user_email_authenticated CHAR(14) BINARY,
 596   user_email_token CHAR(32) BINARY,
 597   user_email_token_expires CHAR(14) BINARY,
 598
 599   PRIMARY KEY user_id (user_id),
 600   UNIQUE INDEX user_name (user_name),
 601   INDEX (user_email_token)
 602
 603 ) TYPE=InnoDB
 604 END;
 605                 $fields = array(
 606                         'user_id'                  => MW_UPGRADE_COPY,
 607                         'user_name'                => MW_UPGRADE_ENCODE,
 608                         'user_real_name'           => MW_UPGRADE_ENCODE,
 609                         'user_password'            => MW_UPGRADE_COPY,
 610                         'user_newpassword'         => MW_UPGRADE_COPY,
 611                         'user_email'               => MW_UPGRADE_ENCODE,
 612                         'user_options'             => MW_UPGRADE_ENCODE,
 613                         'user_touched'             => MW_UPGRADE_CALLBACK,
 614                         'user_token'               => MW_UPGRADE_COPY,
 615                         'user_email_authenticated' => MW_UPGRADE_CALLBACK,
 616                         'user_email_token'         => MW_UPGRADE_NULL,
 617                         'user_email_token_expires' => MW_UPGRADE_NULL );
 618                 $this->copyTable( 'user', $tabledef, $fields,
 619                         array( &$this, 'userCallback' ) );
 620         }
 621
 622         function userCallback( $row, $copy ) {
 623                 $now = $this->dbw->timestamp();
 624                 $copy['user_touched'] = $now;
 625                 $copy['user_email_authenticated'] = $this->emailAuth ? $now : null;
 626                 return $copy;
 627         }
 628
 629         function upgradeImage() {
 630                 $tabledef = <<<END
 631 CREATE TABLE $1 (
 632   img_name varchar(255) binary NOT NULL default '',
 633   img_size int(8) unsigned NOT NULL default '0',
 634   img_width int(5)  NOT NULL default '0',
 635   img_height int(5)  NOT NULL default '0',
 636   img_metadata mediumblob NOT NULL,
 637   img_bits int(3)  NOT NULL default '0',
 638   img_media_type ENUM("UNKNOWN", "BITMAP", "DRAWING", "AUDIO", "VIDEO", "MULTIMEDIA", "OFFICE", "TEXT", "EXECUTABLE", "ARCHIVE") default NULL,
 639   img_major_mime ENUM("unknown", "application", "audio", "image", "text", "video", "message", "model", "multipart") NOT NULL default "unknown",
 640   img_minor_mime varchar(32) NOT NULL default "unknown",
 641   img_description tinyblob NOT NULL default '',
 642   img_user int(5) unsigned NOT NULL default '0',
 643   img_user_text varchar(255) binary NOT NULL default '',
 644   img_timestamp char(14) binary NOT NULL default '',
 645
 646   PRIMARY KEY img_name (img_name),
 647   INDEX img_size (img_size),
 648   INDEX img_timestamp (img_timestamp)
 649 ) TYPE=InnoDB
 650 END;
 651                 $fields = array(
 652                         'img_name'        => MW_UPGRADE_ENCODE,
 653                         'img_size'        => MW_UPGRADE_COPY,
 654                         'img_width'       => MW_UPGRADE_CALLBACK,
 655                         'img_height'      => MW_UPGRADE_CALLBACK,
 656                         'img_metadata'    => MW_UPGRADE_CALLBACK,
 657                         'img_bits'        => MW_UPGRADE_CALLBACK,
 658                         'img_media_type'  => MW_UPGRADE_CALLBACK,
 659                         'img_major_mime'  => MW_UPGRADE_CALLBACK,
 660                         'img_minor_mime'  => MW_UPGRADE_CALLBACK,
 661                         'img_description' => MW_UPGRADE_ENCODE,
 662                         'img_user'        => MW_UPGRADE_COPY,
 663                         'img_user_text'   => MW_UPGRADE_ENCODE,
 664                         'img_timestamp'   => MW_UPGRADE_COPY );
 665                 $this->copyTable( 'image', $tabledef, $fields,
 666                         array( &$this, 'imageCallback' ) );
 667         }
 668
 669         function imageCallback( $row, $copy ) {
 670                 // Fill in the new image info fields
 671                 $info = $this->imageInfo( $row->img_name );
 672
 673                 $copy['img_width'     ] = $info['width'];
 674                 $copy['img_height'    ] = $info['height'];
 675                 $copy['img_metadata'  ] = ""; // loaded on-demand
 676                 $copy['img_bits'      ] = $info['bits'];
 677                 $copy['img_media_type'] = $info['media'];
 678                 $copy['img_major_mime'] = $info['major'];
 679                 $copy['img_minor_mime'] = $info['minor'];
 680
 681                 // If doing UTF8 conversion the file must be renamed
 682                 $this->renameFile( $row->img_name, 'wfImageDir' );
 683
 684                 return $copy;
 685         }
 686
 687         function imageInfo( $name, $subdirCallback='wfImageDir', $basename = null ) {
 688                 if( is_null( $basename ) ) $basename = $name;
 689                 $dir = call_user_func( $subdirCallback, $basename );
 690                 $filename = $dir . '/' . $name;
 691                 $info = array(
 692                         'width'  => 0,
 693                         'height' => 0,
 694                         'bits'   => 0,
 695                         'media'  => '',
 696                         'major'  => '',
 697                         'minor'  => '' );
 698
 699                 $magic =& wfGetMimeMagic();
 700                 $mime = $magic->guessMimeType( $filename, true );
 701                 list( $info['major'], $info['minor'] ) = explode( '/', $mime );
 702
 703                 $info['media'] = $magic->getMediaType( $filename, $mime );
 704
 705                 # Height and width
 706                 $gis = false;
 707                 if( $mime == 'image/svg' ) {
 708                         $gis = wfGetSVGsize( $this->imagePath );
 709                 } elseif( $magic->isPHPImageType( $mime ) ) {
 710                         $gis = getimagesize( $filename );
 711                 } else {
 712                         $this->log( "Surprising mime type: $mime" );
 713                 }
 714                 if( $gis ) {
 715                         $info['width' ] = $gis[0];
 716                         $info['height'] = $gis[1];
 717                 }
 718                 if( isset( $gis['bits'] ) ) {
 719                         $info['bits'] = $gis['bits'];
 720                 }
 721
 722                 return $info;
 723         }
 724
 725
 726         /**
 727          * Truncate a table.
 728          * @param string $table The table name to be truncated
 729          */
 730         function clearTable( $table ) {
 731                 print "Clearing $table...\n";
 732                 $tableName = $this->db->tableName( $table );
 733                 $this->db->query( 'TRUNCATE $tableName' );
 734         }
 735
 736         /**
 737          * Rename a given image or archived image file to the converted filename,
 738          * leaving a symlink for URL compatibility.
 739          *
 740          * @param string $oldname pre-conversion filename
 741          * @param string $basename pre-conversion base filename for dir hashing, if an archive
 742          * @access private
 743          */
 744         function renameFile( $oldname, $subdirCallback='wfImageDir', $basename=null ) {
 745                 $newname = $this->conv( $oldname );
 746                 if( $newname == $oldname ) {
 747                         // No need to rename; another field triggered this row.
 748                         return;
 749                 }
 750
 751                 if( is_null( $basename ) ) $basename = $oldname;
 752                 $ubasename = $this->conv( $basename );
 753                 $oldpath = call_user_func( $subdirCallback, $basename ) . '/' . $oldname;
 754                 $newpath = call_user_func( $subdirCallback, $ubasename ) . '/' . $newname;
 755
 756                 $this->log( "$oldpath -> $newpath" );
 757                 if( rename( $oldpath, $newpath ) ) {
 758                         $relpath = $this->relativize( $newpath, dirname( $oldpath ) );
 759                         if( !symlink( $relpath, $oldpath ) ) {
 760                                 $this->log( "... symlink failed!" );
 761                         }
 762                 } else {
 763                         $this->log( "... rename failed!" );
 764                 }
 765         }
 766
 767         /**
 768          * Generate a relative path name to the given file.
 769          * Assumes Unix-style paths, separators, and semantics.
 770          *
 771          * @param string $path Absolute destination path including target filename
 772          * @param string $from Absolute source path, directory only
 773          * @return string
 774          * @access private
 775          * @static
 776          */
 777         function relativize( $path, $from ) {
 778                 $pieces  = explode( '/', dirname( $path ) );
 779                 $against = explode( '/', $from );
 780
 781                 // Trim off common prefix
 782                 while( count( $pieces ) && count( $against )
 783                         && $pieces[0] == $against[0] ) {
 784                         array_shift( $pieces );
 785                         array_shift( $against );
 786                 }
 787
 788                 // relative dots to bump us to the parent
 789                 while( count( $against ) ) {
 790                         array_unshift( $pieces, '..' );
 791                         array_shift( $against );
 792                 }
 793
 794                 array_push( $pieces, basename( $path ) );
 795
 796                 return implode( '/', $pieces );
 797         }
 798
 799         function upgradeOldImage() {
 800                 $tabledef = <<<END
 801 CREATE TABLE $1 (
 802   -- Base filename: key to image.img_name
 803   oi_name varchar(255) binary NOT NULL default '',
 804
 805   -- Filename of the archived file.
 806   -- This is generally a timestamp and '!' prepended to the base name.
 807   oi_archive_name varchar(255) binary NOT NULL default '',
 808
 809   -- Other fields as in image...
 810   oi_size int(8) unsigned NOT NULL default 0,
 811   oi_width int(5) NOT NULL default 0,
 812   oi_height int(5) NOT NULL default 0,
 813   oi_bits int(3) NOT NULL default 0,
 814   oi_description tinyblob NOT NULL default '',
 815   oi_user int(5) unsigned NOT NULL default '0',
 816   oi_user_text varchar(255) binary NOT NULL default '',
 817   oi_timestamp char(14) binary NOT NULL default '',
 818
 819   INDEX oi_name (oi_name(10))
 820
 821 ) TYPE=InnoDB;
 822 END;
 823                 $fields = array(
 824                         'oi_name'         => MW_UPGRADE_ENCODE,
 825                         'oi_archive_name' => MW_UPGRADE_ENCODE,
 826                         'oi_size'         => MW_UPGRADE_COPY,
 827                         'oi_width'        => MW_UPGRADE_CALLBACK,
 828                         'oi_height'       => MW_UPGRADE_CALLBACK,
 829                         'oi_bits'         => MW_UPGRADE_CALLBACK,
 830                         'oi_description'  => MW_UPGRADE_ENCODE,
 831                         'oi_user'         => MW_UPGRADE_COPY,
 832                         'oi_user_text'    => MW_UPGRADE_ENCODE,
 833                         'oi_timestamp'    => MW_UPGRADE_COPY );
 834                 $this->copyTable( 'oldimage', $tabledef, $fields,
 835                         array( &$this, 'oldimageCallback' ) );
 836         }
 837
 838         function oldimageCallback( $row, $copy ) {
 839                 // Fill in the new image info fields
 840                 $info = $this->imageInfo( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 841                 $copy['oi_width' ] = $info['width' ];
 842                 $copy['oi_height'] = $info['height'];
 843                 $copy['oi_bits'  ] = $info['bits'  ];
 844
 845                 // If doing UTF8 conversion the file must be renamed
 846                 $this->renameFile( $row->oi_archive_name, 'wfImageArchiveDir', $row->oi_name );
 847
 848                 return $copy;
 849         }
 850
 851
 852         function upgradeWatchlist() {
 853                 $fname = 'FiveUpgrade::upgradeWatchlist';
 854                 $chunksize = 100;
 855
 856                 extract( $this->dbw->tableNames( 'watchlist', 'watchlist_temp' ) );
 857
 858                 $this->log( 'Migrating watchlist table to watchlist_temp...' );
 859                 $this->dbw->query(
 860 "CREATE TABLE $watchlist_temp (
 861   -- Key to user_id
 862   wl_user int(5) unsigned NOT NULL,
 863
 864   -- Key to page_namespace/page_title
 865   -- Note that users may watch patches which do not exist yet,
 866   -- or existed in the past but have been deleted.
 867   wl_namespace int NOT NULL default '0',
 868   wl_title varchar(255) binary NOT NULL default '',
 869
 870   -- Timestamp when user was last sent a notification e-mail;
 871   -- cleared when the user visits the page.
 872   -- FIXME: add proper null support etc
 873   wl_notificationtimestamp varchar(14) binary NOT NULL default '0',
 874
 875   UNIQUE KEY (wl_user, wl_namespace, wl_title),
 876   KEY namespace_title (wl_namespace,wl_title)
 877
 878 ) TYPE=InnoDB;", $fname );
 879
 880                 // Fix encoding for Latin-1 upgrades, add some fields,
 881                 // and double article to article+talk pairs
 882                 $numwatched = $this->dbw->selectField( 'watchlist', 'count(*)', '', $fname );
 883
 884                 $this->setChunkScale( $chunksize, $numwatched * 2, 'watchlist_temp', $fname );
 885                 $result = $this->dbr->select( 'watchlist',
 886                         array(
 887                                 'wl_user',
 888                                 'wl_namespace',
 889                                 'wl_title' ),
 890                         '',
 891                         $fname );
 892
 893                 $add = array();
 894                 while( $row = $this->dbr->fetchObject( $result ) ) {
 895                         $now = $this->dbw->timestamp();
 896                         $add[] = array(
 897                                 'wl_user'      =>                        $row->wl_user,
 898                                 'wl_namespace' => Namespace::getSubject( $row->wl_namespace ),
 899                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 900                                 'wl_notificationtimestamp' =>            '0' );
 901                         $this->addChunk( $add );
 902
 903                         $add[] = array(
 904                                 'wl_user'      =>                        $row->wl_user,
 905                                 'wl_namespace' =>    Namespace::getTalk( $row->wl_namespace ),
 906                                 'wl_title'     =>           $this->conv( $row->wl_title ),
 907                                 'wl_notificationtimestamp' =>            '0' );
 908                         $this->addChunk( $add );
 909                 }
 910                 $this->lastChunk( $add );
 911                 $this->dbr->freeResult( $result );
 912
 913                 $this->log( 'Done converting watchlist.' );
 914                 $this->cleanupSwaps[] = 'watchlist';
 915         }
 916
 917         function upgradeLogging() {
 918                 $tabledef = <<<END
 919 CREATE TABLE $1 (
 920   -- Symbolic keys for the general log type and the action type
 921   -- within the log. The output format will be controlled by the
 922   -- action field, but only the type controls categorization.
 923   log_type char(10) NOT NULL default '',
 924   log_action char(10) NOT NULL default '',
 925
 926   -- Timestamp. Duh.
 927   log_timestamp char(14) NOT NULL default '19700101000000',
 928
 929   -- The user who performed this action; key to user_id
 930   log_user int unsigned NOT NULL default 0,
 931
 932   -- Key to the page affected. Where a user is the target,
 933   -- this will point to the user page.
 934   log_namespace int NOT NULL default 0,
 935   log_title varchar(255) binary NOT NULL default '',
 936
 937   -- Freeform text. Interpreted as edit history comments.
 938   log_comment varchar(255) NOT NULL default '',
 939
 940   -- LF separated list of miscellaneous parameters
 941   log_params blob NOT NULL default '',
 942
 943   KEY type_time (log_type, log_timestamp),
 944   KEY user_time (log_user, log_timestamp),
 945   KEY page_time (log_namespace, log_title, log_timestamp)
 946
 947 ) TYPE=InnoDB
 948 END;
 949                 $fields = array(
 950                         'log_type'      => MW_UPGRADE_COPY,
 951                         'log_action'    => MW_UPGRADE_COPY,
 952                         'log_timestamp' => MW_UPGRADE_COPY,
 953                         'log_user'      => MW_UPGRADE_COPY,
 954                         'log_namespace' => MW_UPGRADE_COPY,
 955                         'log_title'     => MW_UPGRADE_ENCODE,
 956                         'log_comment'   => MW_UPGRADE_ENCODE,
 957                         'log_params'    => MW_UPGRADE_ENCODE );
 958                 $this->copyTable( 'logging', $tabledef, $fields );
 959         }
 960
 961         function upgradeArchive() {
 962                 $tabledef = <<<END
 963 CREATE TABLE $1 (
 964   ar_namespace int NOT NULL default '0',
 965   ar_title varchar(255) binary NOT NULL default '',
 966   ar_text mediumblob NOT NULL default '',
 967
 968   ar_comment tinyblob NOT NULL default '',
 969   ar_user int(5) unsigned NOT NULL default '0',
 970   ar_user_text varchar(255) binary NOT NULL,
 971   ar_timestamp char(14) binary NOT NULL default '',
 972   ar_minor_edit tinyint(1) NOT NULL default '0',
 973
 974   ar_flags tinyblob NOT NULL default '',
 975
 976   ar_rev_id int(8) unsigned,
 977   ar_text_id int(8) unsigned,
 978
 979   KEY name_title_timestamp (ar_namespace,ar_title,ar_timestamp)
 980
 981 ) TYPE=InnoDB
 982 END;
 983                 $fields = array(
 984                         'ar_namespace'  => MW_UPGRADE_COPY,
 985                         'ar_title'      => MW_UPGRADE_ENCODE,
 986                         'ar_text'       => MW_UPGRADE_COPY,
 987                         'ar_comment'    => MW_UPGRADE_ENCODE,
 988                         'ar_user'       => MW_UPGRADE_COPY,
 989                         'ar_user_text'  => MW_UPGRADE_ENCODE,
 990                         'ar_timestamp'  => MW_UPGRADE_COPY,
 991                         'ar_minor_edit' => MW_UPGRADE_COPY,
 992                         'ar_flags'      => MW_UPGRADE_COPY,
 993                         'ar_rev_id'     => MW_UPGRADE_NULL,
 994                         'ar_text_id'    => MW_UPGRADE_NULL );
 995                 $this->copyTable( 'archive', $tabledef, $fields );
 996         }
 997
 998         function upgradeImagelinks() {
 999                 global $wgUseLatin1;
1000                 if( $wgUseLatin1 ) {
1001                         $tabledef = <<<END
1002 CREATE TABLE $1 (
1003   -- Key to page_id of the page containing the image / media link.
1004   il_from int(8) unsigned NOT NULL default '0',
1005
1006   -- Filename of target image.
1007   -- This is also the page_title of the file's description page;
1008   -- all such pages are in namespace 6 (NS_IMAGE).
1009   il_to varchar(255) binary NOT NULL default '',
1010
1011   UNIQUE KEY il_from(il_from,il_to),
1012   KEY (il_to)
1013
1014 ) TYPE=InnoDB
1015 END;
1016                         $fields = array(
1017                                 'il_from' => MW_UPGRADE_COPY,
1018                                 'il_to'   => MW_UPGRADE_ENCODE );
1019                         $this->copyTable( 'imagelinks', $tabledef, $fields );
1020                 }
1021         }
1022
1023         function upgradeCategorylinks() {
1024                 global $wgUseLatin1;
1025                 if( $wgUseLatin1 ) {
1026                         $tabledef = <<<END
1027 CREATE TABLE $1 (
1028   cl_from int(8) unsigned NOT NULL default '0',
1029   cl_to varchar(255) binary NOT NULL default '',
1030   cl_sortkey varchar(86) binary NOT NULL default '',
1031   cl_timestamp timestamp NOT NULL,
1032
1033   UNIQUE KEY cl_from(cl_from,cl_to),
1034   KEY cl_sortkey(cl_to,cl_sortkey),
1035   KEY cl_timestamp(cl_to,cl_timestamp)
1036 ) TYPE=InnoDB
1037 END;
1038                         $fields = array(
1039                                 'cl_from'      => MW_UPGRADE_COPY,
1040                                 'cl_to'        => MW_UPGRADE_ENCODE,
1041                                 'cl_sortkey'   => MW_UPGRADE_ENCODE,
1042                                 'cl_timestamp' => MW_UPGRADE_COPY );
1043                         $this->copyTable( 'categorylinks', $tabledef, $fields );
1044                 }
1045         }
1046
1047         function upgradeIpblocks() {
1048                 global $wgUseLatin1;
1049                 if( $wgUseLatin1 ) {
1050                         $tabledef = <<<END
1051 CREATE TABLE $1 (
1052   ipb_id int(8) NOT NULL auto_increment,
1053   ipb_address varchar(40) binary NOT NULL default '',
1054   ipb_user int(8) unsigned NOT NULL default '0',
1055   ipb_by int(8) unsigned NOT NULL default '0',
1056   ipb_reason tinyblob NOT NULL default '',
1057   ipb_timestamp char(14) binary NOT NULL default '',
1058   ipb_auto tinyint(1) NOT NULL default '0',
1059   ipb_expiry char(14) binary NOT NULL default '',
1060
1061   PRIMARY KEY ipb_id (ipb_id),
1062   INDEX ipb_address (ipb_address),
1063   INDEX ipb_user (ipb_user)
1064
1065 ) TYPE=InnoDB
1066 END;
1067                         $fields = array(
1068                                 'ipb_id'        => MW_UPGRADE_COPY,
1069                                 'ipb_address'   => MW_UPGRADE_COPY,
1070                                 'ipb_user'      => MW_UPGRADE_COPY,
1071                                 'ipb_by'        => MW_UPGRADE_COPY,
1072                                 'ipb_reason'    => MW_UPGRADE_ENCODE,
1073                                 'ipb_timestamp' => MW_UPGRADE_COPY,
1074                                 'ipb_auto'      => MW_UPGRADE_COPY,
1075                                 'ipb_expiry'    => MW_UPGRADE_COPY );
1076                         $this->copyTable( 'ipblocks', $tabledef, $fields );
1077                 }
1078         }
1079
1080         function upgradeRecentchanges() {
1081                 // There's a format change in the namespace field
1082                 $tabledef = <<<END
1083 CREATE TABLE $1 (
1084   rc_id int(8) NOT NULL auto_increment,
1085   rc_timestamp varchar(14) binary NOT NULL default '',
1086   rc_cur_time varchar(14) binary NOT NULL default '',
1087
1088   rc_user int(10) unsigned NOT NULL default '0',
1089   rc_user_text varchar(255) binary NOT NULL default '',
1090
1091   rc_namespace int NOT NULL default '0',
1092   rc_title varchar(255) binary NOT NULL default '',
1093
1094   rc_comment varchar(255) binary NOT NULL default '',
1095   rc_minor tinyint(3) unsigned NOT NULL default '0',
1096
1097   rc_bot tinyint(3) unsigned NOT NULL default '0',
1098   rc_new tinyint(3) unsigned NOT NULL default '0',
1099
1100   rc_cur_id int(10) unsigned NOT NULL default '0',
1101   rc_this_oldid int(10) unsigned NOT NULL default '0',
1102   rc_last_oldid int(10) unsigned NOT NULL default '0',
1103
1104   rc_type tinyint(3) unsigned NOT NULL default '0',
1105   rc_moved_to_ns tinyint(3) unsigned NOT NULL default '0',
1106   rc_moved_to_title varchar(255) binary NOT NULL default '',
1107
1108   rc_patrolled tinyint(3) unsigned NOT NULL default '0',
1109
1110   rc_ip char(15) NOT NULL default '',
1111
1112   PRIMARY KEY rc_id (rc_id),
1113   INDEX rc_timestamp (rc_timestamp),
1114   INDEX rc_namespace_title (rc_namespace, rc_title),
1115   INDEX rc_cur_id (rc_cur_id),
1116   INDEX new_name_timestamp(rc_new,rc_namespace,rc_timestamp),
1117   INDEX rc_ip (rc_ip)
1118
1119 ) TYPE=InnoDB
1120 END;
1121                 $fields = array(
1122                         'rc_id'             => MW_UPGRADE_COPY,
1123                         'rc_timestamp'      => MW_UPGRADE_COPY,
1124                         'rc_cur_time'       => MW_UPGRADE_COPY,
1125                         'rc_user'           => MW_UPGRADE_COPY,
1126                         'rc_user_text'      => MW_UPGRADE_ENCODE,
1127                         'rc_namespace'      => MW_UPGRADE_COPY,
1128                         'rc_title'          => MW_UPGRADE_ENCODE,
1129                         'rc_comment'        => MW_UPGRADE_ENCODE,
1130                         'rc_minor'          => MW_UPGRADE_COPY,
1131                         'rc_bot'            => MW_UPGRADE_COPY,
1132                         'rc_new'            => MW_UPGRADE_COPY,
1133                         'rc_cur_id'         => MW_UPGRADE_COPY,
1134                         'rc_this_oldid'     => MW_UPGRADE_COPY,
1135                         'rc_last_oldid'     => MW_UPGRADE_COPY,
1136                         'rc_type'           => MW_UPGRADE_COPY,
1137                         'rc_moved_to_ns'    => MW_UPGRADE_COPY,
1138                         'rc_moved_to_title' => MW_UPGRADE_ENCODE,
1139                         'rc_patrolled'      => MW_UPGRADE_COPY,
1140                         'rc_ip'             => MW_UPGRADE_COPY );
1141                 $this->copyTable( 'recentchanges', $tabledef, $fields );
1142         }
1143
1144         function upgradeQuerycache() {
1145                 // There's a format change in the namespace field
1146                 $tabledef = <<<END
1147 CREATE TABLE $1 (
1148   -- A key name, generally the base name of of the special page.
1149   qc_type char(32) NOT NULL,
1150
1151   -- Some sort of stored value. Sizes, counts...
1152   qc_value int(5) unsigned NOT NULL default '0',
1153
1154   -- Target namespace+title
1155   qc_namespace int NOT NULL default '0',
1156   qc_title char(255) binary NOT NULL default '',
1157
1158   KEY (qc_type,qc_value)
1159
1160 ) TYPE=InnoDB
1161 END;
1162                 $fields = array(
1163                         'qc_type'      => MW_UPGRADE_COPY,
1164                         'qc_value'     => MW_UPGRADE_COPY,
1165                         'qc_namespace' => MW_UPGRADE_COPY,
1166                         'qc_title'     => MW_UPGRADE_ENCODE );
1167                 $this->copyTable( 'querycache', $tabledef, $fields );
1168         }
1169
1170         /**
1171          * Rename all our temporary tables into final place.
1172          * We've left things in place so a read-only wiki can continue running
1173          * on the old code during all this.
1174          */
1175         function upgradeCleanup() {
1176                 $this->renameTable( 'old', 'text' );
1177
1178                 foreach( $this->cleanupSwaps as $table ) {
1179                         $this->swap( $table );
1180                 }
1181         }
1182
1183         function renameTable( $from, $to ) {
1184                 $this->log( "Renaming $from to $to..." );
1185
1186                 $fromtable = $this->dbw->tableName( $from );
1187                 $totable   = $this->dbw->tableName( $to );
1188                 $this->dbw->query( "ALTER TABLE $fromtable RENAME TO $totable" );
1189         }
1190
1191         function swap( $base ) {
1192                 $this->renameTable( $base, "{$base}_old" );
1193                 $this->renameTable( "{$base}_temp", $base );
1194         }
1195
1196 }
1197
1198 $upgrade = new FiveUpgrade();
1199 $step = isset( $options['step'] ) ? $options['step'] : null;
1200 $upgrade->upgrade( $step );
1201
1202 ?>