Adding the phpBB build script. This is the latest version of the script Meik has been using for releases of phpBB. I've made a few smaller changes to make its output work on the CLI and for it to work when located inside a working directory. Various notices/warnings etc. have been fixed, too. We probably want to make some more major changes to the script, at the moment it seems a little difficult to follow exactly what it does.

git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@10465 89ea8834-ac86-4346-8a33-228a782c2dd0
author: Nils Adermann <naderman@naderman.de> 2010-02-01 00:03:26 +0000
committer: Nils Adermann <naderman@naderman.de> 2010-02-01 00:03:26 +0000
commit: 9487673f9c218c776f36605a0c2c9fcd4d55b50c (patch)
tree: c6a07f05d1b9f3998d8d849afd86870e207909cd /build
parent: 926d0f980ee2e064a2778da3fdca7b6be2e95e3d (diff)
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4 files changed, 3091 insertions, 0 deletions
diff --git a/build/build_diff.php b/build/build_diff.php
new file mode 100755
index 0000000000..ab3bb774b7
--- /dev/null
+++ b/build/build_diff.php
@@ -0,0 +1,408 @@
+#!/usr/bin/env php
+<?php
+/**
+*
+* @package build
+* @version $Id$
+* @copyright (c) 2010 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+// CONFIG - Begin
+$substitute_old = '3.0.6';
+$substitute_new = '3.0.7-RC1';
+$simple_name_old = 'phpbb306';
+$simple_name_new = 'phpbb307-RC1';
+$echo_changes = false;
+// Set this to true to just compress the changes and do not build them again
+// This should be used for building custom modified txt file. ;)
+$package_changed_files = false;
+// CONFIG - End
+
+//$debug_file = 'includes/functions_user.php'; //'styles/prosilver/style.cfg';
+$debug_file = false;
+
+if ($debug_file !== false)
+{
+	$echo_changes = false;
+}
+
+$s_name = 'save_' . $substitute_old . '_to_' . $substitute_new;
+
+$location = dirname(__FILE__);
+
+if (!$package_changed_files)
+{
+	if (!$echo_changes)
+	{
+		// Cleanup...
+		run_command("rm -R $location/save/*");
+
+		// Create directory...
+		run_command("mkdir $location/save/{$s_name}");
+		run_command("mkdir $location/save/{$s_name}/language");
+		run_command("mkdir $location/save/{$s_name}/prosilver");
+		run_command("mkdir $location/save/{$s_name}/subsilver2");
+	}
+}
+
+// Build code changes and place them into 'save'
+if (!$package_changed_files)
+{
+	build_code_changes('language');
+	build_code_changes('prosilver');
+	build_code_changes('subsilver2');
+}
+
+// Package code changes
+$code_changes_filename = 'phpBB-' . $substitute_old . '_to_' . $substitute_new . '-codechanges';
+
+if (!$echo_changes)
+{
+	// Now compress the files...
+	// Build Main phpBB Release
+	$compress_programs = array(
+//		'tar.gz'	=> 'tar -czf',
+		'tar.bz2'	=> 'tar -cjf',
+		'zip'		=> 'zip -r'
+	);
+
+	chdir($location . '/save/' . $s_name);
+	foreach ($compress_programs as $extension => $compress_command)
+	{
+		echo "Packaging code changes for $extension\n";
+		run_command("rm ./../../release_files/{$code_changes_filename}.{$extension}");
+		flush();
+
+		// Build Package
+		run_command("$compress_command ./../../release_files/{$code_changes_filename}.{$extension} *");
+
+		// Build MD5 Sum
+		run_command("md5sum ./../../release_files/{$code_changes_filename}.{$extension} > ./../../release_files/{$code_changes_filename}.{$extension}.md5");
+		flush();
+	}
+}
+
+/**
+* $output_format can be: language, prosilver and subsilver2
+*/
+function build_code_changes($output_format)
+{
+	global $substitute_new, $substitute_old, $simple_name_old, $simple_name_new, $echo_changes, $package_changed_files, $location, $debug_file, $s_name;
+
+	// Global array holding the data entries
+	$data = array(
+		'header'		=> array(),
+		'diff'			=> array(),
+	);
+
+	// Read diff file and prepare the output filedata...
+	//$patch_filename = '../new_version/patches/phpBB-' . $substitute_old . '_to_' . $substitute_new . '.patch';
+	$release_filename = 'phpbb-' . $substitute_old . '_to_' . $substitute_new . '_' . $output_format . '.txt';
+
+	if (!$package_changed_files)
+	{
+		if (!$echo_changes)
+		{
+			$fp = fopen('save/' . $s_name . '/' . $output_format . '/' . $release_filename, 'wb');
+
+			if (!$fp)
+			{
+				die('Unable to create ' . $release_filename);
+			}
+		}
+	}
+
+	include_once($location . '/build_helper.php');
+	$package = new build_package(array($substitute_old, $substitute_new), false);
+
+	$titles = array(
+		'language'		=> 'phpBB ' . $substitute_old . ' to phpBB ' . $substitute_new . ' Language Pack Changes',
+		'prosilver'		=> 'phpBB ' . $substitute_old . ' to phpBB ' . $substitute_new . ' prosilver Changes',
+		'subsilver2'	=> 'phpBB ' . $substitute_old . ' to phpBB ' . $substitute_new . ' subsilver2 Changes',
+	);
+
+	$data['header'] = array(
+		'title'		=> $titles[$output_format],
+		'intro'		=> '
+
+These are the ' . $titles[$output_format] . ' summed up into a little Mod. These changes are only partial and do not include any code changes, therefore not meant for updating phpBB.
+
+	',
+		'included_files'	=> array(),
+	);
+
+	// We collect the files we want to diff first (ironically we grab this from a diff file)
+	if (!$echo_changes)
+	{
+		echo "\n\nCollecting Filenames:";
+	}
+
+	// We re-create the patch file
+	foreach ($package->old_packages as $_package_name => $dest_package_filename)
+	{
+		chdir($package->locations['old_versions']);
+
+		if (!$echo_changes)
+		{
+			echo "\n\n" . 'Creating patch/diff files for phpBB-' . $dest_package_filename . $package->get('new_version_number');
+		}
+
+		$dest_package_filename = $location . '/save/' . $s_name . '/phpBB-' . $dest_package_filename . $package->get('new_version_number') . '.patch';
+		$package->run_command('diff ' . $package->diff_options . ' ' . $_package_name . ' ' . $package->get('simple_name') . ' > ' . $dest_package_filename);
+
+		// Parse this diff to determine file changes from the checked versions and save them
+		$result = $package->collect_diff_files($dest_package_filename, $_package_name);
+		$package->run_command('rm ' . $dest_package_filename);
+	}
+
+	chdir($location);
+
+	$filenames = array();
+	foreach ($result['files'] as $filename)
+	{
+		if ($debug_file !== false && $filename != $debug_file)
+		{
+			continue;
+		}
+
+		// Decide which files to compare...
+		switch ($output_format)
+		{
+			case 'language':
+				if (strpos($filename, 'language/en/') !== 0)
+				{
+					continue 2;
+				}
+			break;
+
+			case 'prosilver':
+				if (strpos($filename, 'styles/prosilver/') !== 0)
+				{
+					continue 2;
+				}
+			break;
+
+			case 'subsilver2':
+				if (strpos($filename, 'styles/subsilver2/') !== 0)
+				{
+					continue 2;
+				}
+			break;
+		}
+
+		if (!file_exists($location . '/old_versions/' . $simple_name_old . '/' . $filename))
+		{
+			// New file... include it
+			$data['header']['included_files'][] = array(
+				'old'				=> $location . '/old_versions/' . $simple_name_old . '/' . $filename,
+				'new'				=> $location . '/old_versions/' . $simple_name_new . '/' . $filename,
+				'phpbb_filename'	=> $filename,
+			);
+			continue;
+		}
+
+		$filenames[] = array(
+			'old'				=> $location . '/old_versions/' . $simple_name_old . '/' . $filename,
+			'new'				=> $location . '/old_versions/' . $simple_name_new . '/' . $filename,
+			'phpbb_filename'	=> $filename,
+		);
+	}
+
+	// Now let us go through the filenames list and create a more comprehensive diff
+	if (!$echo_changes)
+	{
+		fwrite($fp, build_header($output_format, $filenames, $data['header']));
+	}
+	else
+	{
+		//echo build_header('text', $filenames, $data['header']);
+	}
+
+	// Copy files...
+	$files_to_copy = array();
+
+	foreach ($data['header']['included_files'] as $filename)
+	{
+		$files_to_copy[] = $filename['phpbb_filename'];
+	}
+
+	// First step is to copy the new version over (clean structure)
+	if (!$echo_changes && sizeof($files_to_copy))
+	{
+		foreach ($files_to_copy as $file)
+		{
+			// Create directory?
+			$dirname = dirname($file);
+
+			if ($dirname)
+			{
+				$dirname = explode('/', $dirname);
+				$__dir = array();
+
+				foreach ($dirname as $i => $dir)
+				{
+					$__dir[] = $dir;
+					run_command("mkdir -p $location/save/" . $s_name . '/' . $output_format . '/' . implode('/', $__dir));
+				}
+			}
+
+			$source_file = $location . '/new_version/phpBB3/' . $file;
+			$dest_file = $location . '/save/' . $s_name . '/' . $output_format . '/';
+			$dest_file .= $file;
+
+			$command = "cp -p $source_file $dest_file";
+			$result = trim(`$command`);
+			echo "- Copied File: " . $source_file . " -> " . $dest_file . "\n";
+		}
+	}
+
+	include_once('diff_class.php');
+
+	if (!$echo_changes)
+	{
+		echo "\n\nDiffing Codebases:";
+	}
+
+	foreach ($filenames as $file_ary)
+	{
+		if (!file_exists($file_ary['old']))
+		{
+			$lines1 = array();
+		}
+		else
+		{
+			$lines1 = file($file_ary['old']);
+		}
+		$lines2 = file($file_ary['new']);
+
+		if (!sizeof($lines1))
+		{
+			// New File
+		}
+		else
+		{
+			$diff = new Diff($lines1, $lines2);
+			$fmt = new BBCodeDiffFormatter(false, 5, $debug_file);
+
+			if (!$echo_changes)
+			{
+				fwrite($fp, $fmt->format_open($file_ary['phpbb_filename']));
+				fwrite($fp, $fmt->format($diff, $lines1));
+				fwrite($fp, $fmt->format_close($file_ary['phpbb_filename']));
+			}
+			else
+			{
+				echo $fmt->format_open($file_ary['phpbb_filename']);
+				echo $fmt->format($diff, $lines1);
+				echo $fmt->format_close($file_ary['phpbb_filename']);
+			}
+
+			if ($debug_file !== false)
+			{
+				echo $fmt->format_open($file_ary['phpbb_filename']);
+				echo $fmt->format($diff, $lines1);
+				echo $fmt->format_close($file_ary['phpbb_filename']);
+				exit;
+			}
+		}
+	}
+
+	if (!$echo_changes)
+	{
+		fwrite($fp, build_footer($output_format));
+
+		// Close file
+		fclose($fp);
+
+		chmod('save/' . $s_name . '/' . $output_format . '/' . $release_filename, 0666);
+	}
+	else
+	{
+		echo build_footer($output_format);
+	}
+}
+
+/**
+* Build Footer
+*/
+function build_footer($mode)
+{
+	$html = '';
+
+	$html .= "# \n";
+	$html .= "#-----[ SAVE/CLOSE ALL FILES ]------------------------------------------ \n";
+	$html .= "# \n";
+	$html .= "# EoM";
+
+	return $html;
+}
+
+/**
+* Build Header
+*/
+function build_header($mode, $filenames, $header)
+{
+	global $substitute_old;
+
+	$html = '';
+
+	$html .= "############################################################## \n";
+	$html .= "## Title: " . $header['title'] . "\n";
+	$html .= "## Author: naderman < naderman@phpbb.com > (Nils Adermann) http://www.phpbb.com \n";
+	$html .= "## Description: \n";
+
+	$intr = explode("\n", $header['intro']);
+	$introduction = '';
+	foreach ($intr as $_line)
+	{
+		$introduction .= wordwrap($_line, 80) . "\n";
+	}
+	$intr = explode("\n", $introduction);
+
+	foreach ($intr as $_line)
+	{
+		$html .= "##		" . $_line . "\n";
+	}
+	$html .= "## \n";
+	$html .= "## Files To Edit: \n";
+
+	foreach ($filenames as $file_ary)
+	{
+		$html .= "##		" . $file_ary['phpbb_filename'] . "\n";
+	}
+	$html .= "##\n";
+	if (sizeof($header['included_files']))
+	{
+		$html .= "## Included Files: \n";
+		foreach ($header['included_files'] as $filename)
+		{
+			$html .= "##		{$filename['phpbb_filename']}\n";
+		}
+	}
+	$html .= "## License: http://opensource.org/licenses/gpl-license.php GNU General Public License v2 \n";
+	$html .= "############################################################## \n";
+	$html .= "\n";
+
+	// COPY Statement?
+	if (sizeof($header['included_files']))
+	{
+		$html .= "#\n#-----[ COPY ]------------------------------------------\n#\n";
+		foreach ($header['included_files'] as $filename)
+		{
+			$html .= "copy {$filename['phpbb_filename']} to {$filename['phpbb_filename']}\n";
+		}
+		$html .= "\n";
+	}
+
+	return $html;
+}
+
+function run_command($command)
+{
+	$result = trim(`$command`);
+	echo "\n- Command Run: " . $command . "\n";
+}
+
+?>
+\ No newline at end of file
diff --git a/build/build_helper.php b/build/build_helper.php
new file mode 100644
index 0000000000..2bae32218b
--- /dev/null
+++ b/build/build_helper.php
@@ -0,0 +1,485 @@
+<?php
+/**
+*
+* @package build
+* @version $Id$
+* @copyright (c) 2010 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+class build_package
+{
+	var $package_infos;
+	var $old_packages;
+	var $versions;
+	var $locations;
+	var $clean_directory_structure;
+	var $files_to_copy;
+	var $files_to_remove;
+	var $remove_from_diff_structure;
+
+	// -c - context diff
+	// -r - compare recursive
+	// -N - Treat missing files as empty
+	// -E - Ignore tab expansions
+	//		not used: -b - Ignore space changes.
+	// -w - Ignore all whitespace
+	// -B - Ignore blank lines
+	// -d - Try to find smaller set of changes
+	var $diff_options = '-crNEBwd';
+	var $diff_options_long = '-x images -crNEB'; // -x fonts -x imageset //imageset not used here, because it includes the imageset.cfg file. ;)
+
+	var $verbose = false;
+	var $status_begun = false;
+	var $num_dots = 0;
+
+	function build_package($versions, $verbose = false)
+	{
+		$this->versions = $versions;
+		$this->verbose = $verbose;
+
+		// Get last two entries
+		$_latest = $this->versions[sizeof($this->versions) - 1];
+		$_before = $this->versions[sizeof($this->versions) - 2];
+
+		$this->locations = array(
+			'new_version'	=> dirname(dirname(__FILE__)) . '/phpBB/',
+			'old_versions'	=> dirname(__FILE__) . '/old_versions/',
+			'root'			=> dirname(__FILE__) . '/',
+			'package_dir'	=> dirname(__FILE__) . '/new_version/'
+		);
+
+		$this->package_infos = array(
+			'package_name'			=> 'phpBB3',
+			'name_prefix'			=> 'phpbb',
+			'simple_name'			=> 'phpbb' . str_replace('.', '', $_latest),
+			'new_version_number'	=> $_latest,
+			'short_version_number'	=> str_replace('.', '', $_latest),
+			'release_filename'		=> 'phpBB-' . $_latest,
+			'last_version'			=> 'phpbb' . str_replace('.', '', $_before),
+			'last_version_number'	=> $_before,
+		);
+
+		$this->package_infos['dest_dir'] = $this->locations['package_dir'] . $this->package_infos['package_name'];
+		$this->package_infos['diff_dir'] = $this->locations['old_versions'] . $this->package_infos['simple_name'];
+		$this->package_infos['patch_directory'] = $this->locations['package_dir'] . 'patches';
+		$this->package_infos['files_directory'] = $this->locations['package_dir'] . 'files';
+		$this->package_infos['update_directory'] = $this->locations['package_dir'] . 'update';
+		$this->package_infos['release_directory'] = $this->locations['package_dir'] . 'release_files';
+
+		// Old packages always exclude the latest version. ;)
+		$this->old_packages = array();
+
+		foreach ($this->versions as $package_version)
+		{
+			if ($package_version == $_latest)
+			{
+				continue;
+			}
+
+			$this->old_packages['phpbb' . str_replace('.', '', $package_version)] = $package_version . '_to_';
+		}
+
+		// We need to make sure this is up to date with the latest version
+		$this->clean_directory_structure = array(
+			'adm'		=> array(
+				'images'	=> '',
+				'style'		=> '',
+			),
+			'cache'		=> '',
+			'docs'		=> '',
+			'download'	=> '',
+			'files'		=> '',
+			'images'	=> array(
+				'avatars'	=> array(
+					'gallery'	=> '',
+					'upload'	=> '',
+				),
+				'icons'		=> array(
+					'misc'	=> '',
+					'smile'	=> '',
+				),
+				'ranks'			=> '',
+				'smilies'		=> '',
+				'upload_icons'	=> '',
+			),
+			'includes'		=> array(
+				'acm'		=> '',
+				'acp'		=> array(
+					'info'	=> '',
+				),
+				'auth'		=> '',
+				'captcha'	=> array(
+					'plugins'	=> '',
+				),
+				'diff'		=> '',
+				'db'		=> '',
+				'hooks'		=> '',
+				'mcp'		=> array(
+					'info'	=> '',
+				),
+				'questionnaire' => '',
+				'search'	=> '',
+				'ucp'		=> array(
+					'info'	=> '',
+				),
+				'utf'		=> array(
+					'data'	=> '',
+				),
+			),
+			'install'		=> array(
+				'convertors'=> '',
+				'schemas'	=> '',
+//				'data'		=> '',
+			),
+			'language'		=> array(
+				'en'		=> array(
+					'acp'		=> '',
+					'email'		=> '',
+					'mods'		=> '',
+				),
+			),
+			'store'			=> '',
+			'styles'		=> array(
+				'subsilver2'	=> array(
+					'imageset'		=> array(
+						'en'	=> '',
+					),
+					'template'	=> '',
+					'theme'		=> array(
+						'images'	=> '',
+					),
+				),
+				'prosilver'	=> array(
+					'imageset'		=> array(
+						'en'	=> '',
+					),
+					'template'	=> '',
+					'theme'		=> array(
+						'images'	=> '',
+					),
+				),
+			),
+		);
+
+		// Files to remove (not include within package)
+		$this->files_to_remove = array(); //array('includes/utf/data/recode_cjk.php');
+
+		// Files within the main directory to copy - do not include config.php
+		$this->files_to_copy = array(
+			'.htaccess', 'common.php', 'cron.php', 'faq.php', 'feed.php', 'index.php', 'mcp.php', 'memberlist.php', 'posting.php', 'report.php',
+			'search.php', 'style.php', 'ucp.php', 'viewforum.php', 'viewonline.php', 'viewtopic.php'
+		);
+
+		// These files/directories will be removed and not used for creating the patch files
+		$this->remove_from_diff_structure = array(
+			'config.php', 'cache', 'docs', 'files', 'install', 'store', 'develop'
+		);
+
+		// Writeable directories
+		$this->writeable = array('cache', 'store', 'images/avatars/upload', 'files');
+
+		// Fill the rest of the files_to_copy array
+		foreach ($this->clean_directory_structure as $cur_dir => $dir_struct)
+		{
+			$this->_fill_files_to_copy($this->locations['new_version'] . $cur_dir, $cur_dir, $dir_struct);
+		}
+	}
+
+	function get($var)
+	{
+		return $this->package_infos[$var];
+	}
+
+	function _fill_files_to_copy($directory, $cur_dir, $dir_struct)
+	{
+		$dh = opendir($directory);
+
+		while ($file = readdir($dh))
+		{
+			if (is_file($directory . '/' . $file) && $file != '.' && $file != '..')
+			{
+				$_loc = str_replace($this->locations['new_version'], '', $directory . '/' . $file);
+
+				if (in_array($_loc, $this->files_to_remove))
+				{
+					continue;
+				}
+
+				$this->files_to_copy[] = $cur_dir . '/' . $file;
+			}
+		}
+		closedir($dh);
+
+		if (is_array($dir_struct))
+		{
+			foreach ($dir_struct as $_cur_dir => $_dir_struct)
+			{
+				$this->_fill_files_to_copy($directory . '/' . $_cur_dir, $cur_dir . '/' . $_cur_dir, $_dir_struct);
+			}
+		}
+	}
+
+	function adjust_permissions($directory)
+	{
+		$dh = opendir($directory);
+
+		while ($file = readdir($dh))
+		{
+			if ($file == '.' || $file == '..' || $file == '.svn')
+			{
+				continue;
+			}
+
+			// If file, then 644
+			if (is_file($directory . '/' . $file))
+			{
+				chmod($directory . '/' . $file, 0644);
+			}
+			else if (is_dir($directory . '/' . $file))
+			{
+				$_loc = str_replace($this->package_infos['dest_dir'] . '/', '', $directory . '/' . $file);
+
+				// If directory is within the writeable chmod to 777, else 755
+				$mode = (in_array($_loc, $this->writeable)) ? 0777 : 0755;
+				chmod($directory . '/' . $file, $mode);
+
+				// Now traverse to the directory
+				$this->adjust_permissions($directory . '/' . $file);
+			}
+		}
+		closedir($dh);
+	}
+
+	function begin_status($headline)
+	{
+		if ($this->status_begun)
+		{
+			echo "\nDone.\n\n";
+		}
+
+		$this->num_dots = 0;
+
+		echo $headline . "\n    ";
+
+		$this->status_begun = true;
+	}
+
+	function run_command($command)
+	{
+		$result = trim(`$command`);
+
+		if ($this->verbose)
+		{
+			echo "    command : " . getcwd() . '$ ' . $command . "\n";
+			echo "    result  : " . $result . "\n";
+		}
+		else
+		{
+			if ($this->num_dots > 70)
+			{
+				echo "\n";
+				$this->num_dots = 0;
+			}
+			echo '.';
+			$this->num_dots++;
+		}
+
+		flush();
+	}
+
+	function create_directory($directory, $dir_struct)
+	{
+		if (!file_exists($directory))
+		{
+			$this->run_command("mkdir $directory");
+		}
+
+		if (is_array($dir_struct))
+		{
+			foreach ($dir_struct as $_dir => $_dir_struct)
+			{
+				$this->create_directory($directory . '/' . $_dir, $_dir_struct);
+			}
+		}
+	}
+
+	function collect_diff_files($diff_filename, $package_name)
+	{
+		$diff_result = $binary = array();
+		$diff_contents = file($diff_filename);
+
+		$special_diff_contents = array();
+
+		foreach ($diff_contents as $num => $line)
+		{
+			$line = trim($line);
+
+			if (!$line)
+			{
+				continue;
+			}
+
+			// Special diff content?
+			if (strpos($line, 'diff ' . $this->diff_options . ' ') === 0 || strpos($line, '*** ') === 0 || strpos($line, '--- ') === 0 || (strpos($line, ' Exp $') !== false && strpos($line, '$Id:') !== false))
+			{
+				$special_diff_contents[] = $line;
+			}
+			else if (strpos($line, 'diff ' . $this->diff_options . ' ') === 0 || strpos($line, '*** ') === 0 || strpos($line, '--- ') === 0 || (strpos($line, ' Exp $') !== false && strpos($line, '$Id:') !== false) || (strpos($line, ' $') !== false && strpos($line, '$Id:') !== false))
+			{
+				$special_diff_contents[] = $line;
+			}
+
+			// Is diffing line?
+			if (strstr($line, 'diff ' . $this->diff_options . ' '))
+			{
+				$next_line = $diff_contents[$num+1];
+				if (strpos($next_line, '***') === 0)
+				{
+	//			*** phpbb208/admin/admin_board.php	Sat Jul 10 20:16:26 2004
+					$next_line = explode("\t", $next_line);
+					$next_line = trim($next_line[0]);
+					$next_line = str_replace('*** ' . $package_name . '/', '', $next_line);
+					$diff_result[] = $next_line;
+				}
+			}
+
+			// Is binary?
+			if (preg_match('/^Binary files ' . $package_name . '\/(.*) and [a-z0-9_-]+\/\1 differ/i', $line, $match))
+			{
+				$binary[] = trim($match[1]);
+			}
+		}
+
+		// Now go through the list again and find out which files have how many changes...
+		$num_changes = array();
+
+	/*  [1070] => diff -crN phpbb200/includes/usercp_avatar.php phpbb2023/includes/usercp_avatar.php
+		[1071] => *** phpbb200/includes/usercp_avatar.php	Sat Jul 10 20:16:13 2004
+		[1072] => --- phpbb2023/includes/usercp_avatar.php	Wed Feb  6 22:28:04 2008
+		[1073] => *** 6,12 ****
+		[1074] => !  *   $Id$
+		[1075] => --- 6,12 ----
+		[1076] => *** 51,59 ****
+		[1077] => --- 51,60 ----
+		[1078] => *** 62,80 ****
+		[1079] => --- 63,108 ----
+		[1080] => *** 87,97 ****
+	*/
+		while (($line = array_shift($special_diff_contents)) !== NULL)
+		{
+			$line = trim($line);
+
+			if (!$line)
+			{
+				continue;
+			}
+
+			// Is diffing line?
+			if (strstr($line, 'diff ' . $this->diff_options . ' '))
+			{
+				$next_line = array_shift($special_diff_contents);
+				if (strpos($next_line, '*** ') === 0)
+				{
+	//			*** phpbb208/admin/admin_board.php	Sat Jul 10 20:16:26 2004
+					$next_line = explode("\t", $next_line);
+					$next_line = trim($next_line[0]);
+					$next_line = str_replace('*** ' . $package_name . '/', '', $next_line);
+
+					$is_reached = false;
+					$prev_line = '';
+
+					while (!$is_reached)
+					{
+						$line = array_shift($special_diff_contents);
+
+						if (strpos($line, 'diff ' . $this->diff_options) === 0 || empty($special_diff_contents))
+						{
+							$is_reached = true;
+							array_unshift($special_diff_contents, $line);
+							continue;
+						}
+
+						if (strpos($line, '*** ') === 0 && strpos($line, ' ****') !== false)
+						{
+							$is_comment = false;
+							while (!(strpos($line, '--- ') === 0 && strpos($line, ' ----') !== false))
+							{
+								$line = array_shift($special_diff_contents);
+								if (strpos($line, ' Exp $') !== false || strpos($line, '$Id:') !== false)
+								{
+									$is_comment = true;
+								}
+							}
+
+							if (!$is_comment)
+							{
+								if (!isset($num_changes[$next_line]))
+								{
+									$num_changes[$next_line] = 1;
+								}
+								else
+								{
+									$num_changes[$next_line]++;
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+
+		// Now remove those results not having changes
+		$return = array();
+
+		foreach ($diff_result as $key => $value)
+		{
+			if (isset($num_changes[$value]))
+			{
+				$return[] = $value;
+			}
+		}
+
+		foreach ($binary as $value)
+		{
+			$return[] = $value;
+		}
+
+		$diff_result = $return;
+		unset($return);
+		unset($special_diff_contents);
+
+		$result = array(
+			'files'		=> array(),
+			'binary'	=> array(),
+			'all'		=> $diff_result,
+		);
+
+		$binary_extensions = array('gif', 'jpg', 'jpeg', 'png', 'ttf');
+
+		// Split into file and binary
+		foreach ($diff_result as $filename)
+		{
+			if (strpos($filename, '.') === false)
+			{
+				$result['files'][] = $filename;
+				continue;
+			}
+
+			$extension = explode('.', $filename);
+			$extension = array_pop($extension);
+
+			if (in_array($extension, $binary_extensions))
+			{
+				$result['binary'][] = $filename;
+			}
+			else
+			{
+				$result['files'][] = $filename;
+			}
+		}
+
+		return $result;
+	}
+}
diff --git a/build/diff_class.php b/build/diff_class.php
new file mode 100644
index 0000000000..0d7c2dcd3a
--- /dev/null
+++ b/build/diff_class.php
@@ -0,0 +1,1677 @@
+<?php
+/**
+*
+* @package build
+* @version $Id$
+* @copyright (c) 2000 Geoffrey T. Dairiki <dairiki@dairiki.org>
+* @copyright (c) 2010 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+/**
+* Class used internally by WikiDiff to actually compute the diffs.
+*
+* The algorithm used here is mostly lifted from the perl module
+* Algorithm::Diff (version 1.06) by Ned Konz, which is available at:
+*   http://www.perl.com/CPAN/authors/id/N/NE/NEDKONZ/Algorithm-Diff-1.06.zip
+*
+* More ideas are taken from:
+*   http://www.ics.uci.edu/~eppstein/161/960229.html
+*
+* Some ideas are (and a bit of code) are from from analyze.c, from GNU
+* diffutils-2.7, which can be found at:
+*   ftp://gnudist.gnu.org/pub/gnu/diffutils/diffutils-2.7.tar.gz
+*
+* Finally, some ideas (subdivision by NCHUNKS > 2, and some optimizations)
+* are my own.
+*/
+class _WikiDiffEngine
+{
+	var $edits;	// List of editing operation to convert XV to YV.
+	var $xv = array(), $yv = array();
+
+	function _WikiDiffEngine($from_lines, $to_lines)
+	{
+		$n_from = sizeof($from_lines);
+		$n_to = sizeof($to_lines);
+
+		$endskip = 0;
+		// Ignore trailing and leading matching lines.
+		while ($n_from > 0 && $n_to > 0)
+		{
+			if ($from_lines[$n_from - 1] != $to_lines[$n_to - 1])
+			{
+				break;
+			}
+
+			$n_from--;
+			$n_to--;
+			$endskip++;
+		}
+
+		for ($skip = 0; $skip < min($n_from, $n_to); $skip++)
+		{
+			if ($from_lines[$skip] != $to_lines[$skip])
+			{
+				break;
+			}
+		}
+		$n_from -= $skip;
+		$n_to -= $skip;
+
+		$xlines = array();
+		$ylines = array();
+
+		// Ignore lines which do not exist in both files.
+		for ($x = 0; $x < $n_from; $x++)
+		{
+			$xhash[$from_lines[$x + $skip]] = 1;
+		}
+
+		for ($y = 0; $y < $n_to; $y++)
+		{
+			$line = $to_lines[$y + $skip];
+			$ylines[] = $line;
+
+			if (($this->ychanged[$y] = empty($xhash[$line])))
+			{
+				continue;
+			}
+			$yhash[$line] = 1;
+			$this->yv[] = $line;
+			$this->yind[] = $y;
+		}
+
+		for ($x = 0; $x < $n_from; $x++)
+		{
+			$line = $from_lines[$x + $skip];
+			$xlines[] = $line;
+
+			if (($this->xchanged[$x] = empty($yhash[$line])))
+			{
+				continue;	// fixme? what happens to yhash/xhash when
+							// there are two identical lines??
+			}
+			$this->xv[] = $line;
+			$this->xind[] = $x;
+		}
+
+		// Find the LCS.
+		$this->_compareseq(0, sizeof($this->xv), 0, sizeof($this->yv));
+
+		// Merge edits when possible
+		$this->_shift_boundaries($xlines, $this->xchanged, $this->ychanged);
+		$this->_shift_boundaries($ylines, $this->ychanged, $this->xchanged);
+
+		// Compute the edit operations.
+		$this->edits = array();
+
+		if ($skip)
+		{
+			$this->edits[] = $skip;
+		}
+
+		$x = 0;
+		$y = 0;
+
+		while ($x < $n_from || $y < $n_to)
+		{
+			// Skip matching "snake".
+			$x0 = $x;
+			$ncopy = 0;
+			while ($x < $n_from && $y < $n_to && !$this->xchanged[$x] && !$this->ychanged[$y])
+			{
+				++$x;
+				++$y;
+				++$ncopy;
+			}
+
+			if ($x > $x0)
+			{
+				$this->edits[] = $x - $x0;
+			}
+
+			// Find deletes.
+			$x0 = $x;
+			$ndelete = 0;
+
+			while ($x < $n_from && $this->xchanged[$x])
+			{
+				++$x;
+				++$ndelete;
+			}
+
+			if ($x > $x0)
+			{
+				$this->edits[] = -($x - $x0);
+			}
+
+			// Find adds.
+			if (isset($this->ychanged[$y]) && $this->ychanged[$y])
+			{
+				$adds = array();
+				while ($y < $n_to && $this->ychanged[$y])
+				{
+					$adds[] = $ylines[$y++];
+				}
+				$this->edits[] = $adds;
+			}
+		}
+
+		if (!empty($endskip))
+		{
+			$this->edits[] = $endskip;
+		}
+	}
+
+	/* Divide the Largest Common Subsequence (LCS) of the sequences
+	* [XOFF, XLIM) and [YOFF, YLIM) into NCHUNKS approximately equally
+	* sized segments.
+	*
+	* Returns (LCS, PTS).  LCS is the length of the LCS. PTS is an
+	* array of NCHUNKS+1 (X, Y) indexes giving the diving points between
+	* sub sequences.  The first sub-sequence is contained in [X0, X1),
+	* [Y0, Y1), the second in [X1, X2), [Y1, Y2) and so on.  Note
+	* that (X0, Y0) == (XOFF, YOFF) and
+	* (X[NCHUNKS], Y[NCHUNKS]) == (XLIM, YLIM).
+	*
+	* This function assumes that the first lines of the specified portions
+	* of the two files do not match, and likewise that the last lines do not
+	* match.  The caller must trim matching lines from the beginning and end
+	* of the portions it is going to specify.
+	*/
+	function _diag ($xoff, $xlim, $yoff, $ylim, $nchunks)
+	{
+		$flip = false;
+
+		if ($xlim - $xoff > $ylim - $yoff)
+		{
+			// Things seems faster (I'm not sure I understand why)
+			// when the shortest sequence in X.
+			$flip = true;
+			list ($xoff, $xlim, $yoff, $ylim) = array( $yoff, $ylim, $xoff, $xlim);
+		}
+
+		if ($flip)
+		{
+			for ($i = $ylim - 1; $i >= $yoff; $i--)
+			{
+				$ymatches[$this->xv[$i]][] = $i;
+			}
+		}
+		else
+		{
+			for ($i = $ylim - 1; $i >= $yoff; $i--)
+			{
+				$ymatches[$this->yv[$i]][] = $i;
+			}
+		}
+
+		$this->lcs = 0;
+		$this->seq[0]= $yoff - 1;
+		$this->in_seq = array();
+		$ymids[0] = array();
+
+		$numer = $xlim - $xoff + $nchunks - 1;
+		$x = $xoff;
+
+		for ($chunk = 0; $chunk < $nchunks; $chunk++)
+		{
+			if ($chunk > 0)
+			{
+				for ($i = 0; $i <= $this->lcs; $i++)
+				{
+					$ymids[$i][$chunk-1] = $this->seq[$i];
+				}
+			}
+
+			$x1 = $xoff + (int)(($numer + ($xlim-$xoff)*$chunk) / $nchunks);
+
+			for ( ; $x < $x1; $x++)
+			{
+				$_index = $flip ? $this->yv[$x] : $this->xv[$x];
+				$matches = (isset($ymatches[$_index])) ? $ymatches[$_index] : array();
+
+				if (!$matches)
+				{
+					continue;
+				}
+				reset($matches);
+
+				while (list ($junk, $y) = each($matches))
+				{
+					if (!isset($this->in_seq[$y]) || !$this->in_seq[$y])
+					{
+						$k = $this->_lcs_pos($y);
+						//if (!$k) die('assertion "!$k" failed');
+						$ymids[$k] = $ymids[$k-1];
+						break;
+					}
+				}
+
+				while (list ($junk, $y) = each($matches))
+				{
+					if ($y > $this->seq[$k-1])
+					{
+						//if ($y >= $this->seq[$k]) die('assertion failed');
+						// Optimization: this is a common case:
+						//  next match is just replacing previous match.
+						$this->in_seq[$this->seq[$k]] = false;
+						$this->seq[$k] = $y;
+						$this->in_seq[$y] = 1;
+					}
+					else if (!isset($this->in_seq[$y]) || !$this->in_seq[$y])
+					{
+						$k = $this->_lcs_pos($y);
+						//if (!$k) die('assertion "!$k" failed');
+						$ymids[$k] = $ymids[$k-1];
+					}
+				}
+			}
+		}
+
+		$seps[] = $flip ? array($yoff, $xoff) : array($xoff, $yoff);
+		$ymid = $ymids[$this->lcs];
+
+		for ($n = 0; $n < $nchunks - 1; $n++)
+		{
+			$x1 = $xoff + (int)(($numer + ($xlim - $xoff) * $n) / $nchunks);
+			$y1 = $ymid[$n] + 1;
+			$seps[] = $flip ? array($y1, $x1) : array($x1, $y1);
+		}
+		$seps[] = $flip ? array($ylim, $xlim) : array($xlim, $ylim);
+
+		return array($this->lcs, $seps);
+	}
+
+	function _lcs_pos ($ypos)
+	{
+		$end = $this->lcs;
+		if ($end == 0 || $ypos > $this->seq[$end])
+		{
+			$this->seq[++$this->lcs] = $ypos;
+			$this->in_seq[$ypos] = 1;
+			return $this->lcs;
+		}
+
+		$beg = 1;
+		while ($beg < $end)
+		{
+			$mid = (int)(($beg + $end) / 2);
+
+			if ($ypos > $this->seq[$mid])
+			{
+				$beg = $mid + 1;
+			}
+			else
+			{
+				$end = $mid;
+			}
+		}
+
+		//if ($ypos == $this->seq[$end]) die("assertion failure");
+
+		$this->in_seq[$this->seq[$end]] = false;
+		$this->seq[$end] = $ypos;
+		$this->in_seq[$ypos] = 1;
+		return $end;
+	}
+
+	/* Find LCS of two sequences.
+	*
+	* The results are recorded in the vectors $this->{x,y}changed[], by
+	* storing a 1 in the element for each line that is an insertion
+	* or deletion (ie. is not in the LCS).
+	*
+	* The subsequence of file 0 is [XOFF, XLIM) and likewise for file 1.
+	*
+	* Note that XLIM, YLIM are exclusive bounds.
+	* All line numbers are origin-0 and discarded lines are not counted.
+	*/
+	function _compareseq ($xoff, $xlim, $yoff, $ylim)
+	{
+		// Slide down the bottom initial diagonal.
+		while ($xoff < $xlim && $yoff < $ylim && $this->xv[$xoff] == $this->yv[$yoff])
+		{
+			++$xoff;
+			++$yoff;
+		}
+
+		// Slide up the top initial diagonal.
+		while ($xlim > $xoff && $ylim > $yoff && $this->xv[$xlim - 1] == $this->yv[$ylim - 1])
+		{
+			--$xlim;
+			--$ylim;
+		}
+
+		if ($xoff == $xlim || $yoff == $ylim)
+		{
+			$lcs = 0;
+		}
+		else
+		{
+			// This is ad hoc but seems to work well.
+			//$nchunks = sqrt(min($xlim - $xoff, $ylim - $yoff) / 2.5);
+			//$nchunks = max(2,min(8,(int)$nchunks));
+			$nchunks = min(7, $xlim - $xoff, $ylim - $yoff) + 1;
+			list ($lcs, $seps) = $this->_diag($xoff, $xlim, $yoff, $ylim, $nchunks);
+		}
+
+		if ($lcs == 0)
+		{
+			// X and Y sequences have no common subsequence:
+			// mark all changed.
+			while ($yoff < $ylim)
+			{
+				$this->ychanged[$this->yind[$yoff++]] = 1;
+			}
+
+			while ($xoff < $xlim)
+			{
+				$this->xchanged[$this->xind[$xoff++]] = 1;
+			}
+		}
+		else
+		{
+			// Use the partitions to split this problem into subproblems.
+			reset($seps);
+
+			$pt1 = $seps[0];
+
+			while ($pt2 = next($seps))
+			{
+				$this->_compareseq ($pt1[0], $pt2[0], $pt1[1], $pt2[1]);
+				$pt1 = $pt2;
+			}
+		}
+	}
+
+	/* Adjust inserts/deletes of identical lines to join changes
+	* as much as possible.
+	*
+	* We do something when a run of changed lines include a
+	* line at one end and have an excluded, identical line at the other.
+	* We are free to choose which identical line is included.
+	* `compareseq' usually chooses the one at the beginning,
+	* but usually it is cleaner to consider the following identical line
+	* to be the "change".
+	*
+	* This is extracted verbatim from analyze.c (GNU diffutils-2.7).
+	*/
+	function _shift_boundaries ($lines, &$changed, $other_changed)
+	{
+		$i = 0;
+		$j = 0;
+		$len = sizeof($lines);
+
+		while (1)
+		{
+			/*
+			* Scan forwards to find beginning of another run of changes.
+			* Also keep track of the corresponding point in the other file.
+			*/
+
+			while ($i < $len && $changed[$i] == 0)
+			{
+				while ($other_changed[$j++])
+				{
+					continue;
+				}
+				$i++;
+			}
+
+			if ($i == $len)
+			{
+				break;
+			}
+
+			$start = $i;
+
+			// Find the end of this run of changes.
+			while (isset($changed[++$i]))
+			{
+				continue;
+			}
+
+			while (isset($other_changed[$j]) && $other_changed[$j])
+			{
+				$j++;
+			}
+
+			do
+			{
+				/*
+				* Record the length of this run of changes, so that
+				* we can later determine whether the run has grown.
+				*/
+				$runlength = $i - $start;
+
+				/*
+				* Move the changed region back, so long as the
+				* previous unchanged line matches the last changed one.
+				* This merges with previous changed regions.
+				*/
+				while ($start && $lines[$start - 1] == $lines[$i - 1])
+				{
+					$changed[--$start] = 1;
+					$changed[--$i] = false;
+
+					while ($changed[$start - 1])
+					{
+						$start--;
+					}
+
+					while ($other_changed[--$j])
+					{
+						continue;
+					}
+				}
+
+				/*
+				* Set CORRESPONDING to the end of the changed run, at the last
+				* point where it corresponds to a changed run in the other file.
+				* CORRESPONDING == LEN means no such point has been found.
+				*/
+				$corresponding = empty($other_changed[$j - 1]) ? $len : $i;
+
+				/*
+				* Move the changed region forward, so long as the
+				* first changed line matches the following unchanged one.
+				* This merges with following changed regions.
+				* Do this second, so that if there are no merges,
+				* the changed region is moved forward as far as possible.
+				*/
+				while ($i != $len && $lines[$start] == $lines[$i])
+				{
+					$changed[$start++] = false;
+					$changed[$i++] = 1;
+
+					while ($changed[$i])
+					{
+						$i++;
+					}
+
+					while ($other_changed[++$j])
+					{
+						$corresponding = $i;
+					}
+				}
+			} while ($runlength != $i - $start);
+
+			/*
+			* If possible, move the fully-merged run of changes
+			* back to a corresponding run in the other file.
+			*/
+			while ($corresponding < $i)
+			{
+				$changed[--$start] = 1;
+				$changed[--$i] = 0;
+
+				while ($other_changed[--$j])
+				{
+					continue;
+				}
+			}
+		}
+	}
+}
+
+/**
+* Class representing a diff between two files.
+*/
+class Diff
+{
+	var $edits;
+
+	/**
+	* Compute diff between files (or deserialize serialized WikiDiff.)
+	*/
+	function Diff($from_lines = false, $to_lines = false)
+	{
+		if ($from_lines && $to_lines)
+		{
+			$compute = new _WikiDiffEngine($from_lines, $to_lines);
+			$this->edits = $compute->edits;
+		}
+		else if ($from_lines)
+		{
+			// $from_lines is not really from_lines, but rather
+			// a serialized Diff.
+			$this->edits = unserialize($from_lines);
+		}
+		else
+		{
+			$this->edits = array();
+		}
+	}
+
+	/**
+	* Compute reversed Diff.
+	*
+	* SYNOPSIS:
+	*
+	*  $diff = new Diff($lines1, $lines2);
+	*  $rev = $diff->reverse($lines1);
+	*
+	*  // reconstruct $lines1 from $lines2:
+	*  $out = $rev->apply($lines2);
+	*/
+	function reverse ($from_lines)
+	{
+		$x = 0;
+		$rev = new Diff;
+
+		for (reset($this->edits); $edit = current($this->edits); next($this->edits))
+		{
+			if (is_array($edit))
+			{ // Was an add, turn it into a delete.
+				$nadd = sizeof($edit);
+				if ($nadd == 0)
+				{
+					die("assertion error");
+				}
+				$edit = -$nadd;
+			}
+			else if ($edit > 0)
+			{
+				// Was a copy --- just pass it through.	      }
+				$x += $edit;
+			}
+			else if ($edit < 0)
+			{ // Was a delete, turn it into an add.
+				$ndelete = -$edit;
+				$edit = array();
+
+				while ($ndelete-- > 0)
+				{
+					$edit[] = $from_lines[$x++];
+				}
+			}
+			else
+			{
+				die("assertion error");
+			}
+
+			$rev->edits[] = $edit;
+		}
+
+		return $rev;
+	}
+
+	/**
+	* Compose (concatenate) Diffs.
+	*
+	* SYNOPSIS:
+	*
+	*  $diff1 = new Diff($lines1, $lines2);
+	*  $diff2 = new Diff($lines2, $lines3);
+	*  $comp = $diff1->compose($diff2);
+	*
+	*  // reconstruct $lines3 from $lines1:
+	*  $out = $comp->apply($lines1);
+	*/
+	function compose ($that)
+	{
+		reset($this->edits);
+		reset($that->edits);
+
+		$comp = new Diff;
+		$left = current($this->edits);
+		$right = current($that->edits);
+
+		while ($left || $right)
+		{
+			if (!is_array($left) && $left < 0)
+			{ // Left op is a delete.
+				$newop = $left;
+				$left = next($this->edits);
+			}
+			else if (is_array($right))
+			{ // Right op is an add.
+				$newop = $right;
+				$right = next($that->edits);
+			}
+			else if (!$left || !$right)
+			{
+				die ("assertion error");
+			}
+			else if (!is_array($left) && $left > 0)
+			{ // Left op is a copy.
+				if ($left <= abs($right))
+				{
+					$newop = $right > 0 ? $left : -$left;
+					$right -= $newop;
+
+					if ($right == 0)
+					{
+						$right = next($that->edits);
+					}
+					$left = next($this->edits);
+				}
+				else
+				{
+					$newop = $right;
+					$left -= abs($right);
+					$right = next($that->edits);
+				}
+			}
+			else
+			{ // Left op is an add.
+				if (!is_array($left))
+				{
+					die('assertion error');
+				}
+				$nleft = sizeof($left);
+
+				if ($nleft <= abs($right))
+				{
+					if ($right > 0)
+					{ // Right op is copy
+						$newop = $left;
+						$right -= $nleft;
+					}
+					else // Right op is delete
+					{
+						$newop = false;
+						$right += $nleft;
+					}
+
+					if ($right == 0)
+					{
+						$right = next($that->edits);
+					}
+					$left = next($this->edits);
+				}
+				else
+				{
+					unset($newop);
+
+					if ($right > 0)
+					{
+						for ($i = 0; $i < $right; $i++)
+						{
+							$newop[] = $left[$i];
+						}
+					}
+
+					$tmp = array();
+					for ($i = abs($right); $i < $nleft; $i++)
+					{
+						$tmp[] = $left[$i];
+					}
+					$left = $tmp;
+					$right = next($that->edits);
+				}
+			}
+
+			if (!$op)
+			{
+				$op = $newop;
+				continue;
+			}
+
+			if (!$newop)
+			{
+				continue;
+			}
+
+			if (is_array($op) && is_array($newop))
+			{
+				// Both $op and $newop are adds.
+				for ($i = 0; $i < sizeof($newop); $i++)
+				{
+					$op[] = $newop[$i];
+				}
+			}
+			else if (($op > 0 && $newop > 0) || ($op < 0 && $newop < 0))
+			{ // $op and $newop are both either deletes or copies.
+				$op += $newop;
+			}
+			else
+			{
+				$comp->edits[] = $op;
+				$op = $newop;
+			}
+		}
+
+		if ($op)
+		{
+			$comp->edits[] = $op;
+		}
+
+		return $comp;
+	}
+
+	/* Debugging only:
+	function _dump ()
+	{
+		echo "<ol>";
+		for (reset($this->edits);
+		{
+			$edit = current($this->edits);
+		}
+		next($this->edits))
+	  {
+	    echo "<li>";
+	    if ($edit > 0)
+		echo "Copy $edit";
+	    else if ($edit < 0)
+		echo "Delete " . -$edit;
+	    else if (is_array($edit))
+	      {
+		echo "Add " . sizeof($edit) . "<ul>";
+		for ($i = 0; $i < sizeof($edit); $i++)
+		    echo "<li>" . htmlspecialchars($edit[$i]);
+		echo "</ul>";
+	      }
+	    else
+		die("assertion error");
+	  }
+	echo "</ol>";
+      }
+  */
+
+	/**
+	* Apply a Diff to a set of lines.
+	*
+	* SYNOPSIS:
+	*
+	*  $diff = new Diff($lines1, $lines2);
+	*
+	*  // reconstruct $lines2 from $lines1:
+	*  $out = $diff->apply($lines1);
+	*/
+	function apply ($from_lines)
+	{
+		$x = 0;
+		$xlim = sizeof($from_lines);
+
+		for (reset($this->edits); $edit = current($this->edits); next($this->edits))
+		{
+			if (is_array($edit))
+			{
+				reset($edit);
+				while (list ($junk, $line) = each($edit))
+				{
+					$output[] = $line;
+				}
+			}
+			else if ($edit > 0)
+			{
+				while ($edit--)
+				{
+					$output[] = $from_lines[$x++];
+				}
+			}
+			else
+			{
+				$x += -$edit;
+			}
+		}
+
+		if ($x != $xlim)
+		{
+			die(sprintf("Diff::apply: line count mismatch: %s != %s", $x, $xlim));
+		}
+
+		return $output;
+	}
+
+	/**
+	* Serialize a Diff.
+	*
+	* SYNOPSIS:
+	*
+	*  $diff = new Diff($lines1, $lines2);
+	*  $string = $diff->serialize;
+	*
+	*  // recover Diff from serialized version:
+	*  $diff2 = new Diff($string);
+	*/
+	function serialize ()
+	{
+		return serialize($this->edits);
+	}
+
+	/**
+	* Return true if two files were equal.
+	*/
+	function isEmpty()
+	{
+		if (sizeof($this->edits) > 1)
+		{
+			return false;
+		}
+
+		if (sizeof($this->edits) == 0)
+		{
+			return true;
+		}
+
+		// Test for: only edit is a copy.
+		return !is_array($this->edits[0]) && $this->edits[0] > 0;
+	}
+
+	/**
+	* Compute the length of the Longest Common Subsequence (LCS).
+	*
+	* This is mostly for diagnostic purposed.
+	*/
+	function lcs()
+	{
+		$lcs = 0;
+		for (reset($this->edits); $edit = current($this->edits); next($this->edits))
+		{
+			if (!is_array($edit) && $edit > 0)
+			{
+				$lcs += $edit;
+			}
+		}
+
+		return $lcs;
+	}
+
+	/**
+	* Check a Diff for validity.
+	*
+	* This is here only for debugging purposes.
+	*/
+	function _check ($from_lines, $to_lines)
+	{
+		$test = $this->apply($from_lines);
+		if (serialize($test) != serialize($to_lines))
+		{
+			die("Diff::_check: failed");
+		}
+
+		reset($this->edits);
+		$prev = current($this->edits);
+		$prevtype = is_array($prev) ? 'a' : ($prev > 0 ? 'c' : 'd');
+
+		while ($edit = next($this->edits))
+		{
+			$type = is_array($edit) ? 'a' : ($edit > 0 ? 'c' : 'd');
+			if ($prevtype == $type)
+			{
+				die("Diff::_check: edit sequence is non-optimal");
+			}
+			$prevtype = $type;
+		}
+		$lcs = $this->lcs();
+		echo "<strong>Diff Okay: LCS = $lcs</strong>\n";
+	}
+}
+
+/**
+* A class to format a Diff as HTML.
+*
+* Usage:
+*
+*	$diff = new Diff($lines1, $lines2); // compute diff.
+*
+*	$fmt = new DiffFormatter;
+*	echo $fmt->format($diff, $lines1); // Output HTMLified standard diff.
+*
+*	or to output reverse diff (diff's that would take $lines2 to $lines1):
+*
+*	$fmt = new DiffFormatter(true);
+*	echo $fmt->format($diff, $lines1);
+*/
+class DiffFormatter
+{
+	var $context_lines;
+	var $do_reverse_diff;
+	var $context_prefix, $deletes_prefix, $adds_prefix;
+
+	function DiffFormatter ($reverse = false)
+	{
+		$this->do_reverse_diff = $reverse;
+		$this->context_lines = 0;
+		$this->context_prefix = '&nbsp;&nbsp;';
+		$this->deletes_prefix = '&lt;&nbsp;';
+		$this->adds_prefix = '&gt;&nbsp;';
+	}
+
+	function format ($diff, $from_lines)
+	{
+		$html = '<table width="100%" bgcolor="black" cellspacing=2 cellpadding=2 border=0>' . "\n";
+		$html .= $this->_format($diff->edits, $from_lines);
+		$html .= "</table>\n";
+
+		return $html;
+	}
+
+	function _format ($edits, $from_lines)
+	{
+		$html = '';
+		$x = 0; $y = 0;
+		$xlim = sizeof($from_lines);
+
+		reset($edits);
+		while ($edit = current($edits))
+		{
+			if (!is_array($edit) && $edit >= 0)
+			{ // Edit op is a copy.
+				$ncopy = $edit;
+			}
+			else
+			{
+				$ncopy = 0;
+
+				if (empty($hunk))
+				{
+					// Start of an output hunk.
+					$xoff = max(0, $x - $this->context_lines);
+					$yoff = $xoff + $y - $x;
+
+					if ($xoff < $x)
+					{
+						// Get leading context.
+						$context = array();
+
+						for ($i = $xoff; $i < $x; $i++)
+						{
+							$context[] = $from_lines[$i];
+						}
+						$hunk['c'] = $context;
+					}
+				}
+
+				if (is_array($edit))
+				{
+					// Edit op is an add.
+					$y += sizeof($edit);
+					$hunk[$this->do_reverse_diff ? 'd' : 'a'] = $edit;
+				}
+				else
+				{
+					// Edit op is a delete
+					$deletes = array();
+
+					while ($edit++ < 0)
+					{
+						$deletes[] = $from_lines[$x++];
+					}
+
+					$hunk[$this->do_reverse_diff ? 'a' : 'd'] = $deletes;
+				}
+			}
+
+			$next = next($edits);
+
+			if (!empty($hunk))
+			{
+				// Originally $ncopy > 2 * $this->context_lines, but we need to split as early as we can for creating MOD Text Templates. ;)
+				if (!$next || $ncopy > $this->context_lines)
+				{
+					// End of an output hunk.
+					$hunks[] = $hunk;
+					unset($hunk);
+
+					$xend = min($x + $this->context_lines, $xlim);
+
+					if ($x < $xend)
+					{
+						// Get trailing context.
+						$context = array();
+						for ($i = $x; $i < $xend; $i++)
+						{
+							$context[] = $from_lines[$i];
+						}
+						$hunks[] = array('c' => $context);
+					}
+
+					$xlen = $xend - $xoff;
+					$ylen = $xend + $y - $x - $yoff;
+					$xbeg = $xlen ? $xoff + 1 : $xoff;
+					$ybeg = $ylen ? $yoff + 1 : $yoff;
+
+					if ($this->do_reverse_diff)
+					{
+						list ($xbeg, $xlen, $ybeg, $ylen) = array($ybeg, $ylen, $xbeg, $xlen);
+					}
+
+					$html .= $this->_emit_diff($xbeg, $xlen, $ybeg, $ylen, $hunks);
+					unset($hunks);
+				}
+				else if ($ncopy)
+				{
+					$hunks[] = $hunk;
+
+					// Copy context.
+					$context = array();
+					for ($i = $x; $i < $x + $ncopy; $i++)
+					{
+						$context[] = $from_lines[$i];
+					}
+					$hunk = array('c' => $context);
+				}
+			}
+
+			$x += $ncopy;
+			$y += $ncopy;
+		}
+
+		return $html;
+	}
+
+	function _emit_lines($lines,  $prefix, $color)
+	{
+		$html = '';
+		reset($lines);
+		while (list ($junk, $line) = each($lines))
+		{
+			$html .= "<tr bgcolor=\"$color\"><td><tt>$prefix</tt>";
+			$html .= "<tt>" . htmlspecialchars($line) . "</tt></td></tr>\n";
+		}
+		return $html;
+	}
+
+	function _emit_diff ($xbeg,$xlen,$ybeg,$ylen,$hunks)
+	{
+		// Save hunk...
+		$this->diff_hunks[] = $hunks;
+
+		$html = '<tr><td><table width="100%" bgcolor="white" cellspacing="0" border="0" cellpadding="4">
+				<tr bgcolor="#cccccc"><td><tt>' .
+				$this->_diff_header($xbeg, $xlen, $ybeg, $ylen) . '
+				</tt></td></tr>\n<tr><td>
+				<table width="100%" cellspacing="0" border="0" cellpadding="2">
+		';
+
+		$prefix = array('c' => $this->context_prefix, 'a' => $this->adds_prefix, 'd' => $this->deletes_prefix);
+		$color = array('c' => '#ffffff', 'a' => '#ffcccc', 'd' => '#ccffcc');
+
+		for (reset($hunks); $hunk = current($hunks); next($hunks))
+		{
+			if (!empty($hunk['c']))
+			{
+				$html .= $this->_emit_lines($hunk['c'], $this->context_prefix, '#ffffff');
+			}
+
+			if (!empty($hunk['d']))
+			{
+				$html .= $this->_emit_lines($hunk['d'], $this->deletes_prefix, '#ccffcc');
+			}
+
+			if (!empty($hunk['a']))
+			{
+				$html .= $this->_emit_lines($hunk['a'], $this->adds_prefix, '#ffcccc');
+			}
+		}
+
+		$html .= "</table></td></tr></table></td></tr>\n";
+		return $html;
+	}
+
+	function _diff_header ($xbeg,$xlen,$ybeg,$ylen)
+	{
+		$what = $xlen ? ($ylen ? 'c' : 'd') : 'a';
+		$xlen = $xlen > 1 ? "," . ($xbeg + $xlen - 1) : '';
+		$ylen = $ylen > 1 ? "," . ($ybeg + $ylen - 1) : '';
+
+		return "$xbeg$xlen$what$ybeg$ylen";
+	}
+}
+
+/**
+* A class to format a Diff as a pretty HTML unified diff.
+*
+* Usage:
+*
+*	$diff = new Diff($lines1, $lines2); // compute diff.
+*
+*	$fmt = new UnifiedDiffFormatter;
+*	echo $fmt->format($diff, $lines1); // Output HTMLified unified diff.
+*/
+class UnifiedDiffFormatter extends DiffFormatter
+{
+	function UnifiedDiffFormatter ($reverse = false, $context_lines = 3)
+	{
+		$this->do_reverse_diff = $reverse;
+		$this->context_lines = $context_lines;
+		$this->context_prefix = '&nbsp;';
+		$this->deletes_prefix = '-';
+		$this->adds_prefix = '+';
+	}
+
+	function _diff_header ($xbeg,$xlen,$ybeg,$ylen)
+	{
+		$xlen = $xlen == 1 ? '' : ",$xlen";
+		$ylen = $ylen == 1 ? '' : ",$ylen";
+
+		return "@@ -$xbeg$xlen +$ybeg$ylen @@";
+	}
+}
+
+/**
+* A class to format a Diff as MOD Template instuctions.
+*
+* Usage:
+*
+*	$diff = new Diff($lines1, $lines2); // compute diff.
+*
+*	$fmt = new BBCodeDiffFormatter;
+*	echo $fmt->format($diff, $lines1); // Output MOD Actions.
+*/
+class BBCodeDiffFormatter extends DiffFormatter
+{
+	function BBCodeDiffFormatter ($reverse = false, $context_lines = 3, $debug = false)
+	{
+		$this->do_reverse_diff = $reverse;
+		$this->context_lines = $context_lines;
+		$this->context_prefix = '&nbsp;';
+		$this->deletes_prefix = '-';
+		$this->adds_prefix = '+';
+		$this->debug = $debug;
+	}
+
+	function format ($diff, $from_lines)
+	{
+		$html = $this->_format($diff->edits, $from_lines);
+
+		return $html;
+	}
+
+	function skip_lines(&$order_array, &$ordering)
+	{
+		if (sizeof($order_array['find_c']))
+		{
+			$text = implode('', $order_array['find_c']);
+			if ($text === "\n" || $text === "\t" || $text === '')
+			{
+				return true;
+			}
+		}
+
+		if (isset($order_array['add']) && sizeof($order_array['add']))
+		{
+			$text = implode('', $order_array['add']);
+			if ($text === "\n" || $text === "\t" || $text === '')
+			{
+				return true;
+			}
+		}
+
+		if (isset($order_array['replace']) && sizeof($order_array['replace']))
+		{
+			$text = implode('', $order_array['replace']);
+			if ($text === "\n" || $text === "\t" || $text === '')
+			{
+				return true;
+			}
+		}
+	}
+
+	function _emit_lines_bb($ybeg, &$ordering)
+	{
+		$html = '';
+
+		// Now adjust for bbcode display...
+		foreach ($ordering as $order_array)
+		{
+			// Skip useless empty lines...
+			if ($this->skip_lines($order_array, $ordering))
+			{
+				continue;
+			}
+
+			// Only include double-finds if the last find has very few code location indications...
+			if (isset($order_array['first_find_c']) && sizeof($order_array['first_find_c']))
+			{
+				$text = implode('', $order_array['find_c']);
+				if ($text === "\n" || $text === "\t" || $text === '')
+				{
+					continue;
+				}
+
+				if (strlen(implode('', $order_array['find_c'])) < 50 && is_array($order_array['first_find_c'][0]))
+				{
+					$html .= "#\n#-----[ FIND ]---------------------------------------------\n# Around Line {$ybeg}\n";
+					$html .= implode("", $order_array['first_find_c'][0]);
+					$html .= "\n";
+					$ybeg += sizeof($order_array['first_find_c'][0]);
+				}
+			}
+
+			if (sizeof($order_array['find_c']))
+			{
+				$html .= "#\n#-----[ FIND ]---------------------------------------------\n# Around Line {$ybeg}\n";
+				$html .= implode("", $order_array['find_c']);
+				$html .= "\n";
+			}
+
+			if (isset($order_array['replace']))
+			{
+				$html .= "#\n#-----[ REPLACE WITH ]---------------------------------------------\n#\n";
+				$html .= implode("", $order_array['replace']);
+				$html .= "\n";
+			}
+
+			if (isset($order_array['add']))
+			{
+				$html .= "#\n#-----[ AFTER, ADD ]---------------------------------------------\n#\n";
+				$html .= implode("", $order_array['add']);
+				$html .= "\n";
+			}
+
+			// There is no DELETE. :o
+			// Let's try to adjust it then...
+			if (isset($order_array['delete']))
+			{
+				$text = implode('', $order_array['delete']);
+				if ($text === "\n" || $text === "\t" || $text === '')
+				{
+					continue;
+				}
+
+				$ybeg += sizeof($order_array['find_c']);
+
+				$html .= "#\n#-----[ FIND ]---------------------------------------------\n# Around Line {$ybeg}\n";
+				$html .= implode("", $order_array['delete']);
+				$html .= "\n";
+
+				$html .= "#\n#-----[ REPLACE WITH ]---------------------------------------------\n# Just remove/delete the lines (replacing with an empty line)\n";
+				$html .= "\n";
+				$html .= "\n";
+			}
+		}
+
+		return $html;
+	}
+
+	function format_open($filename)
+	{
+		$html = '';
+		$html .= "#\n#-----[ OPEN ]--------------------------------------------- \n#\n{$filename}\n\n";
+
+		return $html;
+	}
+
+	function format_close($filename)
+	{
+		return '';
+	}
+
+	function _emit_diff ($xbeg, $xlen, $ybeg, $ylen, $hunks)
+	{
+
+		// Go through the hunks to determine which method we are using (AFTER, ADD; REPLACE WITH or DELETE)
+
+		// Remove the header...
+		if (sizeof($hunks) <= 2 && !isset($hunks[1]['a']) && !isset($hunks[1]['d']))
+		{
+			$reorder = false;
+			$orig_hunks = $hunks;
+
+			foreach ($hunks as $key => $hunk)
+			{
+				if (isset($hunk['a']) && isset($hunk['d']))
+				{
+	/*				if (sizeof($hunk['a']) == 1 && sizeof($hunk['d']) == 1)
+					{
+						if (preg_match('/\* @version \$Id:.+\$$/', $hunk['a'][0]) && preg_match('/\* @version \$Id:.+\$$/', $hunk['d'][0]))
+						{
+							// Only remove this sole hunk...
+							unset($hunks[$key]);
+							$reorder = true;
+							continue;
+						}
+					}*/
+
+					// Compare the add and replace one...
+					$string_1 = rtrim(trim(implode('', $hunk['a'])));
+					$string_2 = rtrim(trim(implode('', $hunk['d'])));
+
+					if (strcmp($string_1, $string_2) === 0)
+					{
+						// Only remove this sole hunk...
+						unset($hunks[$key]);
+						$reorder = true;
+						continue;
+					}
+				}
+			}
+
+			if ($reorder)
+			{
+				// Now check if we have no more 'a' and 'd's
+				$hunks = array_merge($hunks, array());
+			}
+		}
+		else
+		{
+			$reorder = false;
+			$orig_hunks = $hunks;
+
+			foreach ($hunks as $key => $hunk)
+			{
+				if (isset($hunk['a']) && isset($hunk['d']))
+				{
+	/*				if (sizeof($hunk['a']) == 1 && sizeof($hunk['d']) == 1)
+					{
+						if (preg_match('/\* @version \$Id:.+\$$/', $hunk['a'][0]) && preg_match('/\* @version \$Id:.+\$$/', $hunk['d'][0]))
+						{
+							// Only remove this sole hunk...
+							unset($hunks[$key]);
+							$reorder = true;
+							continue;
+						}
+					}*/
+
+					// Compare the add and replace one...
+					$string_1 = rtrim(trim(implode('', $hunk['a'])));
+					$string_2 = rtrim(trim(implode('', $hunk['d'])));
+
+					if (strcmp($string_1, $string_2) === 0)
+					{
+						// Only remove this sole hunk...
+						unset($hunks[$key]);
+						$reorder = true;
+						continue;
+					}
+				}
+			}
+
+			if ($reorder)
+			{
+				$hunks = array_merge($hunks, array());
+
+				if (sizeof($hunks) == 1 && sizeof($hunks[0]) == 1 && isset($hunks[0]['c']))
+				{
+					return;
+				}
+				else
+				{
+					$hunks = $orig_hunks;
+				}
+			}
+		}
+
+		if (sizeof($hunks) == 1 && sizeof($hunks[0]) == 1 && isset($hunks[0]['c']))
+		{
+			return;
+		}
+
+		$replace = false;
+		foreach ($hunks as $key => $hunk)
+		{
+			if (isset($hunk['d']) && isset($hunk['a']))
+			{
+				$replace = true;
+				break;
+			}
+		}
+
+		$ordering = array();
+		$cur_pos = 0;
+
+		// Replace-block
+		if ($replace)
+		{
+			foreach ($hunks as $hunk)
+			{
+				if (!isset($hunk['a']) && !isset($hunk['d']))
+				{
+					continue;
+				}
+
+				if (!empty($hunk['c']))
+				{
+					if (!isset($ordering[$cur_pos]['find_c']))
+					{
+						$ordering[$cur_pos]['find_c'] = $hunk['c'];
+					}
+					else
+					{
+						$ordering[$cur_pos]['end_c'] = $hunk['c'];
+					}
+				}
+
+				// Make sure we begin fresh...
+				if (!isset($ordering[$cur_pos]['replace']))
+				{
+					$ordering[$cur_pos]['first_find_c'][] = $ordering[$cur_pos]['find_c'];
+					$ordering[$cur_pos]['find_c'] = array();
+					$ordering[$cur_pos]['replace'] = array();
+				}
+
+				// Add the middle part if one exist...
+				if (isset($ordering[$cur_pos]['end_c']))
+				{
+					$ordering[$cur_pos]['find_c'] = array_merge($ordering[$cur_pos]['find_c'], $ordering[$cur_pos]['end_c']);
+					$ordering[$cur_pos]['replace'] = array_merge($ordering[$cur_pos]['replace'], $ordering[$cur_pos]['end_c']);
+					unset($ordering[$cur_pos]['end_c']);
+				}
+
+				if (isset($hunk['d']))
+				{
+					$ordering[$cur_pos]['find_c'] = array_merge($ordering[$cur_pos]['find_c'], $hunk['d']);
+				}
+
+				if (isset($hunk['a']))
+				{
+					$ordering[$cur_pos]['replace'] = array_merge($ordering[$cur_pos]['replace'], $hunk['a']);
+				}
+			}
+		}
+		else
+		{
+			foreach ($hunks as $hunk)
+			{
+				if (!empty($hunk['c']))
+				{
+					if (!isset($ordering[$cur_pos]['find_c']))
+					{
+						$ordering[$cur_pos]['find_c'] = $hunk['c'];
+					}
+					else
+					{
+						$ordering[$cur_pos]['end_c'] = $hunk['c'];
+					}
+				}
+
+				if (!empty($hunk['a']))
+				{
+					if (isset($ordering[$cur_pos]['delete']))
+					{
+						// If ordering is set with an delete entry, we will actually begin a new ordering array (to seperate delete from add)
+						$cur_pos++;
+						$ordering[$cur_pos]['find_c'] = $ordering[($cur_pos - 1)]['end_c'];
+						$ordering[$cur_pos]['add'] = $hunk['a'];
+					}
+					else
+					{
+						if (isset($ordering[$cur_pos]['add']))
+						{
+							// Now, we really need to be quite careful here...
+							if (isset($ordering[$cur_pos]['end_c']) && isset($hunk['c']) && isset($hunk['a']) && sizeof($hunk) == 2)
+							{
+								// There is a new find/add entry we did not catch... let's try to add a new entry then... but first check the hunk[a] contents...
+								$text = trim(implode("\n", $hunk['c']));
+								if ($text == "\n" || !$text)
+								{
+									$ordering[$cur_pos]['add'] = array_merge($ordering[$cur_pos]['add'], array("\n"), $hunk['a']);
+								}
+								else if (sizeof($hunk['c']) > 2 || strlen(implode('', $hunk['c'])) > 20)
+								{
+									$cur_pos++;
+									$ordering[$cur_pos]['find_c'] = $ordering[($cur_pos - 1)]['end_c'];
+									$ordering[$cur_pos]['add'] = $hunk['a'];
+								}
+								else
+								{
+									$cur_pos++;
+									$ordering[$cur_pos]['find_c'] = $ordering[($cur_pos - 1)]['end_c'];
+									$ordering[$cur_pos]['add'] = $hunk['a'];
+/*									echo 'FIND STATEMENT TOO TINY';
+									echo ";".rawurlencode($text).";";
+									var_dump($hunk);
+									exit;*/
+								}
+							}
+							else
+							{
+								echo 'UNCATCHED ENTRY';
+								var_dump($hunks);
+								exit;
+							}
+						}
+						else
+						{
+							$ordering[$cur_pos]['add'] = $hunk['a'];
+						}
+					}
+				}
+				else if (!empty($hunk['d']))
+				{
+					if (isset($ordering[$cur_pos]['add']))
+					{
+						// If ordering is set with an add entry, we will actually begin a new ordering array (to seperate delete from add)
+						$cur_pos++;
+						$ordering[$cur_pos]['find_c'] = $ordering[($cur_pos - 1)]['end_c'];
+						$ordering[$cur_pos]['delete'] = $hunk['d'];
+					}
+					else
+					{
+						$ordering[$cur_pos]['delete'] = $hunk['d'];
+					}
+				}
+			}
+		}
+
+		$html = '';
+
+		return $this->_emit_lines_bb($ybeg, $ordering);
+	}
+
+	function _diff_header($xbeg, $xlen, $ybeg, $ylen)
+	{
+	}
+}
+
+
+/**
+* A class to format a Diff as MOD Template instuctions.
+*
+* Usage:
+*
+*	$diff = new Diff($lines1, $lines2); // compute diff.
+*
+*	$fmt = new BBCodeDiffFormatter;
+*	echo $fmt->format($diff, $lines1); // Output MOD Actions.
+*/
+class MODXDiffFormatter extends BBCodeDiffFormatter
+{
+	function MODXDiffFormatter ($reverse = false, $context_lines = 3, $debug = false)
+	{
+		$this->do_reverse_diff = $reverse;
+		$this->context_lines = $context_lines;
+		$this->context_prefix = '&nbsp;';
+		$this->deletes_prefix = '-';
+		$this->adds_prefix = '+';
+		$this->debug = $debug;
+	}
+
+	function _emit_lines_bb($ybeg, &$ordering)
+	{
+		$html = '';
+
+		// Now adjust for bbcode display...
+		foreach ($ordering as $order_array)
+		{
+			// Skip useless empty lines...
+			if ($this->skip_lines($order_array, $ordering))
+			{
+				continue;
+			}
+
+			// Only include double-finds if the last find has very few code location indications...
+			if (sizeof($order_array['first_find_c']))
+			{
+				$text = implode('', $order_array['find_c']);
+				if ($text === "\n" || $text === "\t" || $text === '')
+				{
+					continue;
+				}
+
+				if (strlen(implode('', $order_array['find_c'])) < 50)
+				{
+					if (substr($html, -8) !== '</find>' . "\n")
+					{
+						$html .= '	<edit>' . "\n";
+					}
+
+					$html .= '		<comment lang="en">Around Line ' . $ybeg . '</comment>' . "\n";
+					$html .= '		<find>' . htmlspecialchars(implode('', $order_array['first_find_c'][0])) . '</find>' . "\n";
+					$ybeg += sizeof($order_array['first_find_c'][0]);
+				}
+			}
+
+			if (sizeof($order_array['find_c']))
+			{
+				if (substr($html, -8) !== '</find>' . "\n")
+				{
+					$html .= '	<edit>' . "\n";
+				}
+
+//				$html .= '	<edit>' . "\n";
+				$html .= '		<comment lang="en">Around Line ' . $ybeg . '</comment>' . "\n";
+				$html .= '		<find>' . htmlspecialchars(implode('', $order_array['find_c'])) . '</find>' . "\n";
+			}
+
+			if (isset($order_array['replace']))
+			{
+				$html .= '		<action type="replace-with">' . htmlspecialchars(implode('', $order_array['replace'])) . '</action>' . "\n";
+				$html .= '	</edit>' . "\n";
+			}
+
+			if (isset($order_array['add']))
+			{
+				$html .= '		<action type="after-add">' . htmlspecialchars(implode('', $order_array['add'])) . '</action>' . "\n";
+				$html .= '	</edit>' . "\n";
+			}
+
+			// There is no DELETE. :o
+			// Let's try to adjust it then...
+			if (isset($order_array['delete']))
+			{
+				$text = implode('', $order_array['delete']);
+				if ($text === "\n" || $text === "\t" || $text === '')
+				{
+					continue;
+				}
+
+				$ybeg += sizeof($order_array['find_c']);
+
+				if (substr($html, -8) !== '</find>' . "\n")
+				{
+					$html .= '	<edit>' . "\n";
+				}
+				$html .= '		<comment lang="en">Around Line ' . $ybeg . ' / Just remove/delete the lines (replacing with an empty line)</comment>' . "\n";
+				$html .= '		<find>' . htmlspecialchars(implode('', $order_array['delete'])) . '</find>' . "\n";
+				$html .= '		<action type="replace-with"></action>' . "\n";
+				$html .= '	</edit>';
+			}
+		}
+
+		return $html;
+	}
+
+	function format_open($filename)
+	{
+		return '<open src="' . $filename . '">' . "\n";
+	}
+
+	function format_close($filename)
+	{
+		return '</open>' . "\n";
+	}
+
+	function _diff_header($xbeg, $xlen, $ybeg, $ylen)
+	{
+	}
+}
+
+?>
+\ No newline at end of file
diff --git a/build/package.php b/build/package.php
new file mode 100755
index 0000000000..50a9e76ab7
--- /dev/null
+++ b/build/package.php
@@ -0,0 +1,521 @@
+#!/usr/bin/env php
+<?php
+/**
+*
+* @package build
+* @version $Id$
+* @copyright (c) 2010 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License
+*
+*/
+
+// The only thing i need to adjust. ;)
+// Please always add the latest version number to the end
+// Only have 5 releases here...
+// If RC8 drops remove the install/data directory
+//$versions = array('3.0.2', '3.0.3-RC1', '3.0.3', '3.0.4-RC1', '3.0.4', '3.0.5-RC1', '3.0.5', '3.0.6-RC1', '3.0.6-RC2', '3.0.6-RC3');
+//$versions = array('3.0.2', '3.0.3', '3.0.4', '3.0.5', '3.0.6', '3.0.7-RC1', '3.0.7');
+$versions = array('3.0.2', '3.0.3-RC1', '3.0.3', '3.0.4-RC1', '3.0.4', '3.0.5-RC1', '3.0.5', '3.0.6-RC1', '3.0.6-RC2', '3.0.6-RC3', '3.0.6-RC4', '3.0.6', '3.0.7-RC1');
+$verbose = false;
+
+require('build_helper.php');
+
+$package = new build_package($versions, $verbose);
+
+echo "Building Release Packages\n";
+echo "Now all three package types (patch, files, release) are built as well as the update package (update).\n";
+
+$package->begin_status('Remove temporary files');
+
+// Cleanup...
+$package->run_command('rm -Rv ' . $package->get('dest_dir'));
+$package->run_command('rm -Rv ' . $package->get('diff_dir'));
+$package->run_command('rm -Rv ' . $package->get('patch_directory'));
+$package->run_command('rm -Rv ' . $package->get('files_directory'));
+$package->run_command('rm -Rv ' . $package->get('update_directory'));
+$package->run_command('rm -Rv ' . $package->get('release_directory'));
+
+$package->begin_status('Create new directories');
+
+// Make sure the directories got removed
+while (file_exists($package->get('update_directory')))
+{
+	sleep(1);
+}
+
+if (!file_exists($package->get('dest_dir')))
+{
+	$package->run_command('mkdir ' . $package->get('dest_dir'));
+}
+
+if (!file_exists($package->get('diff_dir')))
+{
+	$package->run_command('mkdir ' . $package->get('diff_dir'));
+}
+
+if (!file_exists($package->get('patch_directory')))
+{
+	$package->run_command('mkdir ' . $package->get('patch_directory'));
+}
+
+if (!file_exists($package->get('files_directory')))
+{
+	$package->run_command('mkdir ' . $package->get('files_directory'));
+}
+
+if (!file_exists($package->get('update_directory')))
+{
+	$package->run_command('mkdir ' . $package->get('update_directory'));
+}
+
+if (!file_exists($package->get('release_directory')))
+{
+	$package->run_command('mkdir ' . $package->get('release_directory'));
+}
+
+$package->begin_status('Copy release files to clean release directory');
+
+// Create config.php file
+$package->run_command('touch ' . $package->get('dest_dir') . '/config.php');
+//$package->run_command('sudo chown www-data:www-data ' . $package->get('dest_dir') . '/config.php');
+
+// Create new directory structure
+foreach ($package->clean_directory_structure as $dir => $dir_struct)
+{
+	$package->create_directory($package->get('dest_dir') . '/' . $dir, $dir_struct);
+}
+
+// First step is to copy the new version over (clean structure)
+foreach ($package->files_to_copy as $file)
+{
+	$source_file = $package->locations['new_version'] . $file;
+	$dest_file = $package->get('dest_dir') . '/' . $file;
+
+	$package->run_command("cp -p $source_file $dest_file");
+}
+
+// fix line endings
+chdir($package->get('dest_dir'));
+$package->run_command($package->locations['new_version'] . 'develop/fix_files.sh');
+
+// Now clean up the permissions
+$package->begin_status('Adjust permissions');
+
+$package->adjust_permissions($package->get('dest_dir'));
+
+// Now create a version for diffing the version - copy the tree over to old_versions...
+$package->begin_status('Create diff directory for obtaining file differences');
+
+$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/* ' . $package->get('diff_dir'));
+$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/.htaccess ' . $package->get('diff_dir'));
+
+// Cleanup diff directory (only contents to diff)
+foreach ($package->remove_from_diff_structure as $remove_dir)
+{
+	$package->run_command('rm -Rv ' . $package->get('diff_dir') . '/' . $remove_dir);
+}
+
+// Now, first of all we need to rebuild all old packages we want to support
+foreach ($package->old_packages as $package_name => $tag_name)
+{
+	$package->begin_status('Create old packages directory for diffing to ' . $package_name);
+
+	chdir($package->locations['old_versions']);
+
+	if (is_dir($package->locations['old_versions'] . $package_name))
+	{
+		$package->run_command('rm -Rv ' . $package->locations['old_versions'] . $package_name);
+	}
+
+	// Now, create a new one...
+	$tag_name = 'release_' . str_replace(array('.', '_to_'), array('_', ''), $tag_name);
+
+	$package->run_command('svn export --non-interactive http://code.phpbb.com/svn/phpbb/tags/' . $tag_name . '/phpBB/ ' . $package_name);
+
+	$location = $package->locations['old_versions'] . $package_name;
+	chdir($location . '/');
+
+	$package->run_command($package->locations['new_version'] . 'develop/fix_files.sh');
+
+	// Now clean up the permissions
+	$package->begin_status('Adjust permissions for package ' . $package_name);
+
+	$package->adjust_permissions($location);
+
+	// Cleanup diff directory (only contents to diff)
+	foreach ($package->remove_from_diff_structure as $remove_dir)
+	{
+		$package->run_command('rm -Rv ' . $location . '/' . $remove_dir);
+	}
+}
+
+// Go trough all versions making a diff if we even have old versions
+// For phpBB 3.0.x we might choose a different update method, rendering the things below useless...
+if (sizeof($package->old_packages))
+{
+	chdir($package->locations['old_versions']);
+
+	// This array is for holding the filenames change
+	$diff_file_changes = array();
+
+	foreach ($package->old_packages as $_package_name => $dest_package_filename)
+	{
+		$package->begin_status('Creating patch/diff files for phpBB-' . $dest_package_filename . $package->get('new_version_number'));
+
+		$dest_package_filename = $package->get('patch_directory') . '/phpBB-' . $dest_package_filename . $package->get('new_version_number') . '.patch';
+		$package->run_command('diff ' . $package->diff_options . ' ' . $_package_name . ' ' . $package->get('simple_name') . ' > ' . $dest_package_filename);
+
+		// Parse this diff to determine file changes from the checked versions and save them
+		$diff_file_changes[$_package_name] = $package->collect_diff_files($dest_package_filename, $_package_name);
+	}
+
+	// Now put those files determined within the correct directories
+	foreach ($diff_file_changes as $_package_name => $file_contents)
+	{
+		$package->begin_status('Creating files-only informations for ' . $package->old_packages[$_package_name] . $package->get('new_version_number'));
+
+		$dest_filename_dir = $package->get('files_directory') . '/' . $package->old_packages[$_package_name] . $package->get('new_version_number');
+
+		if (!file_exists($dest_filename_dir))
+		{
+			$package->run_command('mkdir ' . $dest_filename_dir);
+		}
+
+		// Now copy the file contents
+		foreach ($file_contents['all'] as $file)
+		{
+			$source_filename = $package->get('dest_dir') . '/' . $file;
+			$dest_filename = $dest_filename_dir . '/' . $file;
+
+			// Create Directories along the way?
+			$file = explode('/', $file);
+			// Remove filename portion
+			$file[sizeof($file)-1] = '';
+
+			chdir($dest_filename_dir);
+			foreach ($file as $entry)
+			{
+				$entry = trim($entry);
+				if ($entry)
+				{
+					if (!file_exists('./' . $entry))
+					{
+						$package->run_command('mkdir ' . $entry);
+					}
+					chdir('./' . $entry);
+				}
+			}
+
+			$package->run_command('cp ' . $source_filename . ' ' . $dest_filename);
+		}
+	}
+
+	// Because there might be binary changes, we re-create the patch files... without parsing file differences.
+	$package->run_command('rm -Rv ' . $package->get('patch_directory'));
+
+	if (!file_exists($package->get('patch_directory')))
+	{
+		$package->run_command('mkdir ' . $package->get('patch_directory'));
+	}
+
+	chdir($package->locations['old_versions']);
+
+	foreach ($package->old_packages as $_package_name => $dest_package_filename)
+	{
+		$package->begin_status('Creating patch/diff files for phpBB-' . $dest_package_filename . $package->get('new_version_number'));
+
+		$dest_package_filename = $package->get('patch_directory') . '/phpBB-' . $dest_package_filename . $package->get('new_version_number') . '.patch';
+		$package->run_command('diff ' . $package->diff_options_long . ' ' . $_package_name . ' ' . $package->get('simple_name') . ' > ' . $dest_package_filename);
+	}
+
+	$packages = $diff_file_changes;
+
+	foreach ($packages as $_package_name => $file_contents)
+	{
+		$package->begin_status('Building specific update files for ' . $package->old_packages[$_package_name] . $package->get('new_version_number'));
+
+		$dest_filename_dir = $package->get('update_directory') . '/' . $package->old_packages[$_package_name] . $package->get('new_version_number');
+
+		if (!file_exists($dest_filename_dir))
+		{
+			$package->run_command('mkdir ' . $dest_filename_dir);
+		}
+
+		$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/docs ' . $dest_filename_dir);
+		$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/install ' . $dest_filename_dir);
+
+		$package->run_command('mkdir ' . $dest_filename_dir . '/install/update');
+		$package->run_command('mkdir ' . $dest_filename_dir . '/install/update/old');
+		$package->run_command('mkdir ' . $dest_filename_dir . '/install/update/new');
+
+		// Remove some files
+		$package->run_command('rm -v ' . $dest_filename_dir . '/install/install_install.php');
+		$package->run_command('rm -v ' . $dest_filename_dir . '/install/install_convert.php');
+		$package->run_command('rm -Rv ' . $dest_filename_dir . '/install/schemas');
+		$package->run_command('rm -Rv ' . $dest_filename_dir . '/install/convertors');
+
+		foreach ($file_contents['all'] as $index => $file)
+		{
+			if (strpos($file, 'recode_cjk') !== false)
+			{
+				unset($file_contents['all'][$index]);
+			}
+		}
+
+		// First of all, fill the 'old' directory
+		foreach ($file_contents['all'] as $file)
+		{
+			$source_filename = $package->locations['old_versions'] . $_package_name . '/' . $file;
+			$dest_filename = $dest_filename_dir . '/install/update/old/' . $file;
+
+			if (!file_exists($source_filename))
+			{
+				continue;
+			}
+
+			// Create Directories along the way?
+			$file = explode('/', $file);
+			// Remove filename portion
+			$file[sizeof($file)-1] = '';
+
+			chdir($dest_filename_dir . '/install/update/old');
+			foreach ($file as $entry)
+			{
+				$entry = trim($entry);
+				if ($entry)
+				{
+					if (!file_exists('./' . $entry))
+					{
+						$package->run_command('mkdir ' . $entry);
+					}
+					chdir('./' . $entry);
+				}
+			}
+
+			$package->run_command('cp ' . $source_filename . ' ' . $dest_filename);
+		}
+
+		// Then fill the 'new' directory
+		foreach ($file_contents['all'] as $file)
+		{
+			$source_filename = $package->locations['old_versions'] . $package->get('simple_name') . '/' . $file;
+			$dest_filename = $dest_filename_dir . '/install/update/new/' . $file;
+
+			if (!file_exists($source_filename))
+			{
+				continue;
+			}
+
+			// Create Directories along the way?
+			$file = explode('/', $file);
+			// Remove filename portion
+			$file[sizeof($file)-1] = '';
+
+			chdir($dest_filename_dir . '/install/update/new');
+			foreach ($file as $entry)
+			{
+				$entry = trim($entry);
+				if ($entry)
+				{
+					if (!file_exists('./' . $entry))
+					{
+						$package->run_command('mkdir ' . $entry);
+					}
+					chdir('./' . $entry);
+				}
+			}
+
+			$package->run_command('cp ' . $source_filename . ' ' . $dest_filename);
+		}
+
+		// Build index.php file for holding the file structure
+		$index_contents = '<?php
+
+if (!defined(\'IN_PHPBB\'))
+{
+	exit;
+}
+
+// Set update info with file structure to update
+$update_info = array(
+	\'version\'	=> array(\'from\' => \'' . str_replace('_to_', '', $package->old_packages[$_package_name]) . '\', \'to\' => \'' . $package->get('new_version_number') . '\'),
+';
+
+		if (sizeof($file_contents['all']))
+		{
+			$index_contents .= '\'files\'		=> array(\'' . implode("',\n\t'", $file_contents['all']) . '\'),
+';
+		}
+		else
+		{
+			$index_contents .= '\'files\'		=> array(),
+';
+		}
+
+		if (sizeof($file_contents['binary']))
+		{
+			$index_contents .= '\'binary\'		=> array(\'' . implode("',\n\t'", $file_contents['binary']) . '\'),
+';
+		}
+		else
+		{
+			$index_contents .= '\'binary\'		=> array(),
+';
+		}
+
+		$index_contents .= ');
+
+?' . '>';
+
+		$fp = fopen($dest_filename_dir . '/install/update/index.php', 'wt');
+		fwrite($fp, $index_contents);
+		fclose($fp);
+	}
+	unset($diff_file_changes);
+
+	$package->begin_status('Clean up all install files');
+
+	// Copy the install files to their respective locations
+	$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/docs ' . $package->get('patch_directory'));
+	$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/install ' . $package->get('patch_directory'));
+
+	// Remove some files
+	chdir($package->get('patch_directory') . '/install');
+
+	$package->run_command('rm -v install_install.php');
+	$package->run_command('rm -v install_update.php');
+	$package->run_command('rm -v install_convert.php');
+	$package->run_command('rm -Rv schemas');
+	$package->run_command('rm -Rv convertors');
+}
+
+// Build Main phpBB Release
+$compress_programs = array(
+//	'tar.gz'	=> 'tar -czf',
+	'tar.bz2'	=> 'tar -cjf',
+	'zip'		=> 'zip -r'
+);
+
+if (sizeof($package->old_packages))
+{
+	// Build Patch Files
+	chdir($package->get('patch_directory'));
+
+	foreach ($compress_programs as $extension => $compress_command)
+	{
+		$package->begin_status('Packaging phpBB Patch Files for ' . $extension);
+		$package->run_command('rm -v ../release_files/' . $package->get('release_filename') . '-patch.' . $extension);
+
+		// Build Package
+		$package->run_command($compress_command . ' ../release_files/' . $package->get('release_filename') . '-patch.' . $extension . ' *');
+
+		// Build MD5 Sum
+		$package->run_command('md5sum ../release_files/' . $package->get('release_filename') . '-patch.' . $extension . ' > ../release_files/' . $package->get('release_filename') . '-patch.' . $extension . '.md5');
+	}
+
+	// Build Files Package
+	chdir($package->get('files_directory'));
+
+	foreach ($compress_programs as $extension => $compress_command)
+	{
+		$package->begin_status('Packaging phpBB Files for ' . $extension);
+
+		$package->run_command('rm -v ../release_files/' . $package->get('release_filename') . '-files.' . $extension);
+		$package->run_command('mkdir ' . $package->get('files_directory') . '/release');
+		$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/docs ' . $package->get('files_directory') . '/release');
+		$package->run_command('cp -Rp ' . $package->get('dest_dir') . '/install ' . $package->get('files_directory') . '/release');
+
+		$package->run_command('rm -v ' . $package->get('files_directory') . '/release/install/install_install.php');
+		$package->run_command('rm -v ' . $package->get('files_directory') . '/release/install/install_update.php');
+		$package->run_command('rm -v ' . $package->get('files_directory') . '/release/install/install_convert.php');
+		$package->run_command('rm -Rv ' . $package->get('files_directory') . '/release/install/schemas');
+		$package->run_command('rm -Rv ' . $package->get('files_directory') . '/release/install/convertors');
+
+		// Pack files
+		foreach ($package->old_packages as $_package_name => $package_path)
+		{
+			chdir($package_path . $package->get('new_version_number'));
+			$command = ($extension == 'zip') ? 'zip -r' : 'tar cf';
+			$_ext = ($extension == 'zip') ? 'zip' : 'tar';
+			$package->run_command("$command ../release/phpBB-$package_path" . $package->get('new_version_number') . ".$_ext *");
+			chdir('..');
+		}
+
+		chdir('./release');
+		$package->run_command("$compress_command ../../release_files/" . $package->get('release_filename') . '-files.' . $extension . ' *');
+		// Build MD5 Sum
+		$package->run_command('md5sum ../../release_files/' . $package->get('release_filename') . '-files.' . $extension . ' > ../../release_files/' . $package->get('release_filename') . '-files.' . $extension . '.md5');
+		chdir('..');
+
+		$package->run_command('rm -Rv ' . $package->get('files_directory') . '/release');
+	}
+
+	// Build Update Package
+	foreach ($compress_programs as $extension => $compress_command)
+	{
+		chdir($package->get('update_directory'));
+
+		$package->begin_status('Packaging phpBB Update for ' . $extension);
+
+		$package->run_command('rm -v ../release_files/' . $package->get('release_filename') . '-update.' . $extension);
+		$package->run_command('mkdir ' . $package->get('update_directory') . '/release');
+
+		// Pack update files
+		$packages = $package->old_packages;
+
+		foreach ($packages as $_package_name => $package_path)
+		{
+			chdir($package_path . $package->get('new_version_number'));
+
+			$package->run_command('rm -v install/install_install.php');
+			$package->run_command('rm -v install/install_convert.php');
+			$package->run_command('rm -v includes/utf/data/recode_cjk.php');
+			$package->run_command('rm -Rv install/schemas');
+			$package->run_command('rm -Rv install/convertors');
+
+			$command = ($extension == 'zip') ? 'zip -r' : 'tar cf';
+			$_ext = ($extension == 'zip') ? 'zip' : 'tar';
+			$package->run_command("$command ../release/$package_path" . $package->get('new_version_number') . ".$_ext *");
+			chdir('..');
+
+			$last_version = $package_path . $package->get('new_version_number');
+
+//			chdir('./release');
+//			$package->run_command("$compress_command ../../release_files/" . $package->get('release_filename') . '-update.' . $extension . ' *');
+//			chdir('..');
+
+			chdir('./' . $last_version);
+			// Copy last package over...
+			$package->run_command('rm -v ../release_files/phpBB-' . $last_version . ".$extension");
+			$package->run_command("$compress_command ../../release_files/phpBB-$last_version.$extension *");
+
+			// Build MD5 Sum
+			$package->run_command("md5sum ../../release_files/phpBB-$last_version.$extension > ../../release_files/phpBB-$last_version.$extension.md5");
+			chdir('..');
+		}
+
+		$package->run_command('rm -Rv ' . $package->get('update_directory') . '/release');
+	}
+
+}
+
+// Delete updater and convertor from main archive
+chdir($package->get('dest_dir') . '/install');
+
+// $package->run_command('rm -v database_update.php');
+$package->run_command('rm -v install_update.php');
+
+chdir($package->locations['package_dir']);
+foreach ($compress_programs as $extension => $compress_command)
+{
+	$package->begin_status('Packaging phpBB for ' . $extension);
+	$package->run_command('rm -v ./release_files/' . $package->get('release_filename') . ".{$extension}");
+
+	// Build Package
+	$package->run_command("$compress_command ./release_files/" . $package->get('release_filename') . '.' . $extension . ' ' . $package->get('package_name'));
+
+	// Build MD5 Sum
+	$package->run_command('md5sum ./release_files/' . $package->get('release_filename') . '.' . $extension . ' > ./release_files/' . $package->get('release_filename') . '.' . $extension . '.md5');
+}
+
+echo "Done.\n";
author	Nils Adermann <naderman@naderman.de>	2010-02-01 00:03:26 +0000
committer	Nils Adermann <naderman@naderman.de>	2010-02-01 00:03:26 +0000
commit	9487673f9c218c776f36605a0c2c9fcd4d55b50c (patch)
tree	c6a07f05d1b9f3998d8d849afd86870e207909cd /build
parent	926d0f980ee2e064a2778da3fdca7b6be2e95e3d (diff)
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