maintenance/storage/compressOld.php

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