maintenance/generate-standalone.php

   1 #!/usr/bin/php
   2 <?php
   3
   4 chdir(dirname(__FILE__));
   5 require_once 'common.php';
   6 assertCli();
   7
   8 /**
   9  * @file
  10  * Compiles all of HTML Purifier's library files into one big file
  11  * named HTMLPurifier.standalone.php. This is usually called during the
  12  * release process.
  13  */
  14
  15 /**
  16  * Global hash that tracks already loaded includes
  17  */
  18 $GLOBALS['loaded'] = array();
  19
  20 /**
  21  * Custom FSTools for this script that overloads some behavior
  22  * @warning The overloading of copy() is not necessarily global for
  23  *          this script. Watch out!
  24  */
  25 class MergeLibraryFSTools extends FSTools
  26 {
  27     function copyable($entry) {
  28         // Skip hidden files
  29         if ($entry[0] == '.') {
  30             return false;
  31         }
  32         return true;
  33     }
  34     function copy($source, $dest) {
  35         copy_and_remove_includes($source, $dest);
  36     }
  37 }
  38 $FS = new MergeLibraryFSTools();
  39
  40 /**
  41  * Replaces the includes inside PHP source code with the corresponding
  42  * source.
  43  * @param string $text PHP source code to replace includes from
  44  */
  45 function replace_includes($text) {
  46     // also remove vim modelines
  47     return preg_replace_callback(
  48         "/require(?:_once)? ['\"]([^'\"]+)['\"];/",
  49         'replace_includes_callback',
  50         $text
  51     );
  52 }
  53
  54 /**
  55  * Removes leading PHP tags from included files. Assumes that there is
  56  * no trailing tag. Also removes vim modelines.
  57  * @note This is safe for files that have internal <?php
  58  * @param string $text Text to have leading PHP tag from
  59  */
  60 function remove_php_tags($text) {
  61     $text = preg_replace('#// vim:.+#', '', $text);
  62     return substr($text, 5);
  63 }
  64
  65 /**
  66  * Copies the contents of a directory to the standalone directory
  67  * @param string $dir Directory to copy
  68  */
  69 function make_dir_standalone($dir) {
  70     global $FS;
  71     return $FS->copyr($dir, 'standalone/' . $dir);
  72 }
  73
  74 /**
  75  * Copies the contents of a file to the standalone directory
  76  * @param string $file File to copy
  77  */
  78 function make_file_standalone($file) {
  79     global $FS;
  80     $FS->mkdirr('standalone/' . dirname($file));
  81     copy_and_remove_includes($file, 'standalone/' . $file);
  82     return true;
  83 }
  84
  85 /**
  86  * Copies a file to another location recursively, if it is a PHP file
  87  * remove includes
  88  * @param string $file Original file
  89  * @param string $sfile New location of file
  90  */
  91 function copy_and_remove_includes($file, $sfile) {
  92     $contents = file_get_contents($file);
  93     if (strrchr($file, '.') === '.php') $contents = replace_includes($contents);
  94     return file_put_contents($sfile, $contents);
  95 }
  96
  97 /**
  98  * @param $matches preg_replace_callback matches array, where index 1
  99  *        is the filename to include
 100  */
 101 function replace_includes_callback($matches) {
 102     $file = $matches[1];
 103     $preserve = array(
 104       // PEAR (external)
 105       'XML/HTMLSax3.php' => 1
 106     );
 107     if (isset($preserve[$file])) {
 108         return $matches[0];
 109     }
 110     if (isset($GLOBALS['loaded'][$file])) return '';
 111     $GLOBALS['loaded'][$file] = true;
 112     return replace_includes(remove_php_tags(file_get_contents($file)));
 113 }
 114
 115 echo 'Generating includes file... ';
 116 shell_exec('php generate-includes.php');
 117 echo "done!\n";
 118
 119 chdir(dirname(__FILE__) . '/../library/');
 120
 121 echo 'Creating full file...';
 122 $contents = replace_includes(file_get_contents('HTMLPurifier.includes.php'));
 123 $contents = str_replace(
 124     // Note that bootstrap is now inside the standalone file
 125     "define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));",
 126     "define('HTMLPURIFIER_PREFIX', dirname(__FILE__) . '/standalone');
 127     set_include_path(HTMLPURIFIER_PREFIX . PATH_SEPARATOR . get_include_path());",
 128     $contents
 129 );
 130 file_put_contents('HTMLPurifier.standalone.php', $contents);
 131 echo ' done!' . PHP_EOL;
 132
 133 echo 'Creating standalone directory...';
 134 $FS->rmdirr('standalone'); // ensure a clean copy
 135
 136 // data files
 137 $FS->mkdirr('standalone/HTMLPurifier/DefinitionCache/Serializer');
 138 make_file_standalone('HTMLPurifier/EntityLookup/entities.ser');
 139 make_file_standalone('HTMLPurifier/ConfigSchema/schema.ser');
 140
 141 // non-standard inclusion setup
 142 make_dir_standalone('HTMLPurifier/ConfigSchema');
 143 make_dir_standalone('HTMLPurifier/Language');
 144 make_dir_standalone('HTMLPurifier/Filter');
 145 make_dir_standalone('HTMLPurifier/Printer');
 146 make_file_standalone('HTMLPurifier/Printer.php');
 147 make_file_standalone('HTMLPurifier/Lexer/PH5P.php');
 148 make_file_standalone('HTMLPurifier/Lexer/PEARSax3.php');
 149
 150 echo ' done!' . PHP_EOL;
 151
 152 // vim: et sw=4 sts=4