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<?php
/// prints usage, doesn't exit
function usage() {
echo "php ./stresstest.php --dir DIRECTORY\n".
"\n".
" DIRECTORY the directory in which this script\n".
" should randomly touch and move files.\n".
"\n".
"Be warned for I will eat thy kittens\n";
}
if ( in_array('--help', $_SERVER['argv']) ) {
usage();
exit(0);
}
$i = array_search('--dir', $_SERVER['argv']);
$dir = $i > -1 && $i < $_SERVER['argc'] - 1 ? $_SERVER['argv'][$i+1] : '';
if ( empty($dir) ) {
usage();
exit(1);
}
chdir($dir) or die("cannot go to folder $dir\n");
/// our data class with parent pointer so we can safely rename folders
/// and still get proper paths for the children afterwards
class Entry {
public $p = null;
public $name;
/// @return path (including file- / dirname) to this entry
public function getPath() {
if (!is_null($this->p)) {
return $this->p->getPath() . '/' . $this->name;
} else {
return $this->name;
}
}
}
$dirIt = new RecursiveIteratorIterator(
new RecursiveDirectoryIterator('.', RecursiveDirectoryIterator::CURRENT_AS_SELF),
RecursiveIteratorIterator::SELF_FIRST
);
/// we'll grep random entries out of this array
$entries = array();
/// tmp pointers to dir entries
/// [dir => &Entry]
$tmpAssoc = array();
$i = 0;
foreach($dirIt as $file) {
if ( $file->isDot() ) {
continue;
}
$entries[$i] = new Entry;
$entries[$i]->name = $file->getFilename();
$path = $file->getPath();
// skip .kdev4 folder or files
if (strpos($path, 'kdev4') != -1) {
continue;
}
if ($path != './') {
$entries[$i]->p = &$tmpAssoc[$path];
}
if ($file->isDir()) {
$tmpAssoc[$file->getPathname()] = &$entries[$i];
}
++$i;
}
unset($tmpAssoc);
printf("Will move %s files randomly around in %s, do you REALLY want to continue?\n".
"Type the following if you want to continue: SPARTAAAA ", count($entries), $dir);
$ret = fgets(STDIN, 10);
if (trim($ret) != 'SPARTAAAA') {
echo "bummer, won't do anything, bye\n";
exit(2);
}
// microseconds to sleep after move
$sleepTime = 250;
// number of moves until we stop
$moves = 10000;
$moved = 0;
for($moved = 0; $moved < $moves; ++$moved) {
// get random file to move
$index = array_rand($entries, 1);
$entry =& $entries[$index];
$oldPath = $entry->getPath();
$newName = $entry->name;
$lastDot = strrpos($newName, '.');
if ($lastDot == -1 || $lastDot == 0) {
$lastDot = strlen($newName);
} else {
--$lastDot;
}
$newName = substr_replace($newName, rand(), rand() % $lastDot, rand() % $lastDot);
$entry->name = $newName;
$newPath = $entry->getPath();
printf("moving $oldPath to $newPath\n");
rename($oldPath, $newPath);
usleep($sleepTime);
}
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