/**
* Get the total filesize for a given file or directory
*
* If $file is a file then just return the result of `filesize()`.
* If $file is a directory then schedule a recursive filesize scan.
*
* @param string $file The file you want to know the size of
* @return int The total of the file or directory
*/
public function total_filesize(SplFileInfo $file, $ignore_excludes = true)
{
if (!file_exists($file->getPathname()) || !@realpath($file->getPathname()) || !$file->isReadable()) {
return false;
}
if ($file->isFile()) {
return $file->getSize();
}
if ($file->isDir()) {
$transient_filesize_key = $this->get_transient_key($file->getPathname());
$transient_running_key = $this->get_transient_key('running_' . $file->getPathname());
if (!$ignore_excludes) {
$transient_filesize_key = $this->get_transient_key($excludes . $file->getPathname());
$transient_running_key = $this->get_transient_key('running_' . $excludes . $file->getPathname());
}
// If we already have a cached filesize for this directory then let's return it
$size = get_transient($transient_filesize_key);
if ($size !== false) {
return (int) $size;
// If we don't have a cached filesize then we probably need to calculate it
} else {
// Don't bother re-calculating if we are already doing that in a different thread through
$parent_directory = $file->getPathname();
while ($parent_directory !== '/') {
$parent_task = new HM_Backdrop_Task(array($this, 'recursive_directory_filesize_scanner'), $parent_directory, $ignore_excludes);
// If we are already calulating the parent directory in another thread then let's just wait for that to finish
if ($parent_task->is_scheduled()) {
return false;
}
$parent_directory = dirname($parent_directory);
}
update_option($transient_running_key, true);
// Schedule a Backdrop task to trigger a recalculation
$task = new HM_Backdrop_Task(array($this, 'recursive_directory_filesize_scanner'), $file->getPathname(), $ignore_excludes);
$task->schedule();
return false;
}
}
}
