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         // Test for PHP bug which breaks PHP 5.0.x on 64-bit...
  19         // As of 1.8 this breaks lots of common operations instead
  20         // of just some rare ones like export.
  21         $borked = str_replace( 'a', 'b', array( -1 => -1 ) );
  22         if( !isset( $borked[-1] ) ) {
  23                 echo "PHP 5.0.x is buggy on your 64-bit system; you must upgrade to PHP 5.1.x\n" .
  24                         "or higher. ABORTING. (http://bugs.php.net/bug.php?id=34879 for details)\n";
  25                 die( -1 );
  26         }
  27
  28         global $wgCommandLineMode;
  29         $wgCommandLineMode = true;
  30         umask( 000 );
  31         @set_time_limit( 0 );
  32 }
  33
  34 function copyfile( $sdir, $name, $ddir, $perms = 0664 ) {
  35         copyfileto( $sdir, $name, $ddir, $name, $perms );
  36 }
  37
  38 function copyfileto( $sdir, $sname, $ddir, $dname, $perms = 0664 ) {
  39         global $wgInstallOwner, $wgInstallGroup;
  40
  41         $d = "{$ddir}/{$dname}";
  42         if ( copy( "{$sdir}/{$sname}", $d ) ) {
  43                 if ( isset( $wgInstallOwner ) ) { chown( $d, $wgInstallOwner ); }
  44                 if ( isset( $wgInstallGroup ) ) { chgrp( $d, $wgInstallGroup ); }
  45                 chmod( $d, $perms );
  46                 # print "Copied \"{$sname}\" to \"{$d}\".\n";
  47         } else {
  48                 print "Failed to copy file \"{$sname}\" to \"{$ddir}/{$dname}\".\n";
  49                 exit();
  50         }
  51 }
  52
  53 function copydirectory( $source, $dest ) {
  54         $handle = opendir( $source );
  55         while ( false !== ( $f = readdir( $handle ) ) ) {
  56                 $fullname = "$source/$f";
  57                 if ( $f{0} != '.' && is_file( $fullname ) ) {
  58                         copyfile( $source, $f, $dest );
  59                 }
  60         }
  61 }
  62
  63 function readconsole( $prompt = '' ) {
  64         static $isatty = null;
  65         if ( is_null( $isatty ) ) {
  66                 if ( !function_exists( 'posix_isatty' ) || posix_isatty( 0 /*STDIN*/ ) ) {
  67                         $isatty = true;
  68                 } else {
  69                         $isatty = false;
  70                 }
  71         }
  72
  73         if ( $isatty && function_exists( 'readline' ) ) {
  74                 return readline( $prompt );
  75         } else {
  76                 if ( $isatty ) {
  77                         print $prompt;
  78                 }
  79                 if ( feof( STDIN ) ) {
  80                         return false;
  81                 }
  82                 $st = fgets(STDIN, 1024);
  83                 if ($st === false) return false;
  84                 $resp = trim( $st );
  85                 return $resp;
  86         }
  87 }
  88
  89 #
  90 # Read and execute SQL commands from a file
  91 #
  92 function dbsource( $fname, $db = false ) {
  93         if ( !$db ) {
  94                 // Try $wgDatabase, which is used in the install and update scripts
  95                 global $wgDatabase;
  96                 if ( isset( $wgDatabase ) ) {
  97                         $db = $wgDatabase;
  98                 } else {
  99                         // No? Well, we must be outside of those scripts, so use the standard method
 100                         $db = wfGetDB( DB_MASTER );
 101                 }
 102         }
 103         $error = $db->sourceFile( $fname );
 104         if ( $error !== true ) {
 105                 print $error;
 106                 exit(1);
 107         }
 108 }
 109 ?>