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 die( 'compressOld is known to be broken at the moment.' );
  37
  38 $optionsWithArgs = array( 't', 'c', 's', 'f', 'h' );
  39 require_once( "commandLine.inc" );
  40 require_once( "compressOld.inc" );
  41
  42 if( !function_exists( "gzdeflate" ) ) {
  43         print "You must enable zlib support in PHP to compress old revisions!\n";
  44         print "Please see http://www.php.net/manual/en/ref.zlib.php\n\n";
  45         die();
  46 }
  47
  48 $defaults = array(
  49         't' => 'concat',
  50         'c' => 20,
  51         's' => 0,
  52         'f' => 3,
  53         'h' => 100,
  54         'b' => '',
  55         'e' => '',
  56 );
  57
  58 $args = $args + $defaults;
  59
  60 if ( $args['t'] != 'concat' && $args['t'] != 'gzip' ) {
  61         print "Type \"{$args['t']}\" not supported\n";
  62 }
  63
  64 print "Depending on the size of your database this may take a while!\n";
  65 print "If you abort the script while it's running it shouldn't harm anything,\n";
  66 print "but if you haven't backed up your data, you SHOULD abort now!\n\n";
  67 print "Press control-c to abort first (will proceed automatically in 5 seconds)\n";
  68 #sleep(5);
  69
  70 $success = true;
  71 if ( $args['t'] == 'concat' ) {
  72         $success = compressWithConcat( $args['s'], $args['c'], $args['f'], $args['h'], $args['b'], $args['e'] );
  73 } else {
  74         compressOldPages( $args['s'] );
  75 }
  76
  77 if ( $success ) {
  78         print "Done.\n";
  79 }
  80
  81 exit();
  82
  83 ?>