maintenance/storage/compressOld.php

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