<?php
/* analyze.php
* Copyright 2007 Bjørn Lindeijer
*
* This file is part of upalyzer.
*
* upalyzer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* upalyzer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with upalyzer; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
?>
<html>
<head><title>Update analysis</title></head>
<body>
<pre>
List of current updates:
<?php
$update_file = file('resources2.txt');
$updates = array();
$update_file_maxlen = 0;
$data_size = 0;
$data_uncompressed_size = 0;
$data_used_size = 0;
$data_overhead_size = 0;
foreach ($update_file as $update_line)
{
$splitted = split(' ', $update_line, 2);
$file = $splitted[0];
$update = array(
'file' => $file,
'adler32' => trim($splitted[1]),
'filesize' => filesize($file),
'size' => 0);
$update_file_maxlen = max($update_file_maxlen, strlen($file));
$uncompressed_size = 0;
$entries = array();
$zip = zip_open($file);
if ($zip) {
while ($zip_entry = zip_read($zip)) {
$uncompressed_size = $uncompressed_size + zip_entry_filesize($zip_entry);
$entry_size = zip_entry_compressedsize($zip_entry);
$entries[zip_entry_name($zip_entry)] = array(
'name' => zip_entry_name($zip_entry),
'size' => $entry_size);
$update['size'] += $entry_size;
}
zip_close($zip);
}
$update['entries'] = $entries;
$update['uncompressed_size'] = $uncompressed_size;
$updates[] = $update;
$data_size += $update['size'];
$data_uncompressed_size += $uncompressed_size;
$data_overhead_size += $update['filesize'] - $update['size'];
}
function get_update_for_file($file)
{
global $updates;
for ($i = count($updates) - 1; $i >= 0; $i--) {
$update = $updates[$i];
if (array_key_exists($file, $update['entries'])) {
return $update;
}
}
return null;
}
foreach ($updates as &$update)
{
$entry_count = count($update['entries']);
$used_entry_count = 0;
$used_entry_size = 0;
foreach ($update['entries'] as $file => $entry) {
$update_for_file = get_update_for_file($file);
if (strcmp($update_for_file['file'], $update['file']) == 0) {
$used_entry_count++;
$used_entry_size += $entry['size'];
$entry['used'] = true;
}
}
$update['used_entry_count'] = $used_entry_count;
$update['used_size'] = $used_entry_size;
$update['used_percentage'] = $used_entry_size / $update['size'];
$data_used_size += $update['used_size'];
}
foreach ($updates as &$update)
{
echo $update['file'];
echo str_repeat(' ', $update_file_maxlen - strlen($update['file']) + 2);
echo $update['adler32'];
printf(" %4d kb", $update['filesize'] / 1024);
printf(" %4d kb", $update['uncompressed_size'] / 1024);
printf(" %3d%% used (%d/%d files)", $update['used_percentage'] * 100,
$update['used_entry_count'],
count($update['entries']));
echo "\n";
}
printf("\n");
printf("Amount of data: %4d kb (+%d kb zip file overhead)\n",
$data_size / 1024,
$data_overhead_size / 1024);
printf("Uncompressed: %4d kb\n", $data_uncompressed_size / 1024);
printf("Obsoleted data: %4d kb (%d%%)\n",
($data_size - $data_used_size) / 1024,
100 - ($data_used_size / $data_size) * 100);
/*
if ($dh = opendir('.')) {
while (($file = readdir($dh)) !== false) {
}
closedir($dh);
}
*/
?>
</pre>
</body>
</html>
