install-utils.inc

   1 <?php
   2
   3 function install_version_checks() {
   4         # We dare not turn output buffer _off_ since this will break completely
   5         # if PHP is globally configured to run through a gzip filter.
   6         @ob_implicit_flush( true );
   7
   8         if( !function_exists( 'version_compare' ) ) {
   9                 # version_compare was introduced in 4.1.0
  10                 echo "Your PHP version is much too old; 4.0.x will _not_ work. 5.0.0 or higher is required. ABORTING.\n";
  11                 die( -1 );
  12         }
  13         if( version_compare( phpversion(), '5.0.0' ) < 0 ) {
  14                 echo "PHP 5.0.0 or higher is required. ABORTING.\n";
  15                 die( -1 );
  16         }
  17
  18         global $wgCommandLineMode;
  19         $wgCommandLineMode = true;
  20         umask( 000 );
  21         set_time_limit( 0 );
  22 }
  23
  24 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  25         copyfileto( $sdir, $name, $ddir, $name, $perms );
  26 }
  27
  28 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  29         global $wgInstallOwner, $wgInstallGroup;
  30
  31         $d = "{$ddir}/{$dname}";
  32         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  33                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  34                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  35                 chmod( $d, $perms );
  36                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  37         } else {
  38                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  39                 exit();
  40         }
  41 }
  42
  43 function copydirectory( $source, $dest ) {
  44         $handle = opendir( $source );
  45         while ( false !== ( $f = readdir( $handle ) ) ) {
  46                 $fullname = "$source/$f";
  47                 if ( $f{0} != '.' && is_file( $fullname ) ) {
  48                         copyfile( $source, $f, $dest );
  49                 }
  50         }
  51 }
  52
  53 function readconsole( $prompt = '' ) {
  54         static $isatty = null;
  55         if ( is_null( $isatty ) ) {
  56                 if ( !function_exists( 'posix_isatty' ) || posix_isatty( STDIN ) ) {
  57                         $isatty = true;
  58                 } else {
  59                         $isatty = false;
  60                 }
  61         }
  62
  63         if ( $isatty && function_exists( 'readline' ) ) {
  64                 return readline( $prompt );
  65         } else {
  66                 if ( $isatty ) {
  67                         print $prompt;
  68                 }
  69                 if ( feof( STDIN ) ) {
  70                         return false;
  71                 }
  72                 $st = fgets(STDIN, 1024);
  73                 if ($st === false) return false;
  74                 $resp = trim( $st );
  75                 return $resp;
  76         }
  77 }
  78
  79 #
  80 # Read and execute SQL commands from a file
  81 #
  82 function dbsource( $fname, $db = false ) {
  83         if ( !$db ) {
  84                 // Try $wgDatabase, which is used in the install and update scripts
  85                 global $wgDatabase;
  86                 if ( isset( $wgDatabase ) ) {
  87                         $db =& $wgDatabase;
  88                 } else {
  89                         // No? Well, we must be outside of those scripts, so use the standard method
  90                         $db =& wfGetDB( DB_MASTER );
  91                 }
  92         }
  93         $error = $db->sourceFile( $fname );
  94         if ( $error !== true ) {
  95                 print $error;
  96                 exit(1);
  97         }
  98 }
  99
 100 # Obsolete, use Database::fieldExists()
 101 function field_exists( $table, $field ) {
 102         $fname = 'Update script: field_exists';
 103         $db =& wfGetDB( DB_SLAVE );
 104         $res = $db->query( "DESCRIBE $table", $fname );
 105         $found = false;
 106
 107         while ( $row = $db->fetchObject( $res ) ) {
 108                 if ( $row->Field == $field ) {
 109                         $found = true;
 110                         break;
 111                 }
 112         }
 113         return $found;
 114 }
 115
 116 # Obsolete Database::tableExists()
 117 function table_exists( $db ) {
 118         global $wgDBname;
 119         $res = mysql_list_tables( $wgDBname );
 120         if( !$res ) {
 121                 echo "** " . mysql_error() . "\n";
 122                 return false;
 123         }
 124         for( $i = mysql_num_rows( $res ) - 1; $i--; $i > 0 ) {
 125                 if( mysql_tablename( $res, $i ) == $db ) return true;
 126         }
 127         return false;
 128 }
 129
 130 # Obsolete, use Database:fieldInfo()
 131 function field_info( $table, $field ) {
 132         $res = mysql_query( "SELECT * FROM $table LIMIT 1" );
 133         $n = mysql_num_fields( $res );
 134         for( $i = 0; $i < $n; $i++ ) {
 135                 $meta = mysql_fetch_field( $res, $i );
 136                 if( $field == $meta->name ) {
 137                         return $meta;
 138                 }
 139         }
 140         return false;
 141 }
 142
 143 ?>