maintenance/storage/compressOld.php

   1 <?php
   2 /**
   3  * Compress the text of a wiki
   4  *
   5  * @addtogroup Maintenance
   6  */
   7
   8 /** */
   9
  10 /**
  11  * Usage:
  12  *
  13  * Non-wikimedia
  14  * php compressOld.php [options...]
  15  *
  16  * Wikimedia
  17  * php compressOld.php <database> [options...]
  18  *
  19  * Options are:
  20  *  -t <type>           set compression type to either:
  21  *                          gzip: compress revisions independently
  22  *                          concat: concatenate revisions and compress in chunks (default)
  23  *  -c <chunk-size>     maximum number of revisions in a concat chunk
  24  *  -b <begin-date>     earliest date to check for uncompressed revisions
  25  *  -e <end-date>       latest revision date to compress
  26  *  -s <start-id>       the old_id to start from
  27  *  -f <max-factor>     the maximum ratio of compressed chunk bytes to uncompressed avg. revision bytes
  28  *  -h <threshold>      is a minimum number of KB, where <max-factor> cuts in
  29  *  --extdb <cluster>   store specified revisions in an external cluster (untested)
  30  *
  31  */
  32
  33 $optionsWithArgs = array( 't', 'c', 's', 'f', 'h', 'extdb', 'endid', 'e' );
  34 require_once( "../commandLine.inc" );
  35 require_once( "compressOld.inc" );
  36
  37 if( !function_exists( "gzdeflate" ) ) {
  38         print "You must enable zlib support in PHP to compress old revisions!\n";
  39         print "Please see http://www.php.net/manual/en/ref.zlib.php\n\n";
  40         wfDie();
  41 }
  42
  43 $defaults = array(
  44         't' => 'concat',
  45         'c' => 20,
  46         's' => 0,
  47         'f' => 5,
  48         'h' => 100,
  49         'b' => '',
  50     'e' => '',
  51     'extdb' => '',
  52     'endid' => false,
  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 if ( $options['extdb'] != '' ) {
  62         print "Compressing database $wgDBname to external cluster {$options['extdb']}\n" . str_repeat('-', 76) . "\n\n";
  63 } else {
  64         print "Compressing database $wgDBname\n" . str_repeat('-', 76) . "\n\n";
  65 }
  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'], $options['endid'] );
  71 } else {
  72         compressOldPages( $options['s'], $options['extdb'] );
  73 }
  74
  75 if ( $success ) {
  76         print "Done.\n";
  77 }
  78
  79 exit();
  80
  81 ?>