maintenance/compressOld.php

   1 <?php
   2 /**
   3  * Compress the old table, old_flags=gzip
   4  *
   5  * @package MediaWiki
   6  * @subpackage Maintenance
   7  */
   8
   9 /** */
  10
  11 /**
  12  * Usage:
  13  *
  14  * Non-wikimedia
  15  * php compressOld.php [-t <type>] [-c <chunk-size>] [-b <begin-date>] [-e <end-date>] [-s <start-id>]
  16  *
  17  * Wikimedia
  18  * php compressOld.php <database> [-t <type>] [-c <chunk-size>] [-b <begin-date>] [-e <end-date>] [-s <start-id>]
  19  *     [-f <max-factor>] [-h <factor-threshold>]
  20  *
  21  * <type> is either:
  22  *   gzip: compress revisions independently
  23  *   concat: concatenate revisions and compress in chunks (default)
  24  *
  25  * <start-id> is the old_id to start from
  26  *
  27  * The following options apply only to the concat type:
  28  *    <begin-date> is the earliest date to check for uncompressed revisions
  29  *    <end-date> is the latest revision date to compress
  30  *    <chunk-size> is the maximum number of revisions in a concat chunk
  31  *    <max-factor> is the maximum ratio of compressed chunk bytes to uncompressed avg. revision bytes
  32  *    <factor-threshold> is a minimum number of KB, where <max-factor> cuts in
  33  *
  34  */
  35
  36 $optionsWithArgs = array( 't', 'c', 's', 'f', 'h' );
  37 require_once( "commandLine.inc" );
  38 require_once( "compressOld.inc" );
  39
  40 if( !function_exists( "gzdeflate" ) ) {
  41         print "You must enable zlib support in PHP to compress old revisions!\n";
  42         print "Please see http://www.php.net/manual/en/ref.zlib.php\n\n";
  43         die();
  44 }
  45
  46 $defaults = array(
  47         't' => 'concat',
  48         'c' => 20,
  49         's' => 0,
  50         'f' => 3,
  51         'h' => 100,
  52         'b' => '',
  53         'e' => '',
  54 );
  55
  56 $args = $args + $defaults;
  57
  58 if ( $args['t'] != 'concat' && $args['t'] != 'gzip' ) {
  59         print "Type \"{$args['t']}\" not supported\n";
  60 }
  61
  62 print "Depending on the size of your database this may take a while!\n";
  63 print "If you abort the script while it's running it shouldn't harm anything,\n";
  64 print "but if you haven't backed up your data, you SHOULD abort now!\n\n";
  65 print "Press control-c to abort first (will proceed automatically in 5 seconds)\n";
  66 #sleep(5);
  67
  68 $success = true;
  69 if ( $args['t'] == 'concat' ) {
  70         $success = compressWithConcat( $args['s'], $args['c'], $args['f'], $args['h'], $args['b'], $args['e'] );
  71 } else {
  72         compressOldPages( $args['s'] );
  73 }
  74
  75 if ( $success ) {
  76         print "Done.\n";
  77 }
  78
  79 exit();
  80
  81 ?>