/**
* Detect changes for one of the monitored paths.
*
* @param string $path
* @param string $filenamePattern
* @return boolean TRUE if any changes were detected in this path
*/
protected function detectChangesOnPath($path, $filenamePattern)
{
$currentDirectoryChanged = false;
try {
$currentSubDirectoriesAndFiles = $this->readMonitoredDirectoryRecursively($path, $filenamePattern);
} catch (\Exception $exception) {
$currentSubDirectoriesAndFiles = array();
$this->changedPaths[$path] = ChangeDetectionStrategyInterface::STATUS_DELETED;
}
$nowDetectedFilesAndDirectories = array();
if (!isset($this->directoriesAndFiles[$path])) {
$this->directoriesAndFiles[$path] = array();
$this->changedPaths[$path] = ChangeDetectionStrategyInterface::STATUS_CREATED;
}
foreach ($currentSubDirectoriesAndFiles as $pathAndFilename) {
$status = $this->changeDetectionStrategy->getFileStatus($pathAndFilename);
if ($status !== ChangeDetectionStrategyInterface::STATUS_UNCHANGED) {
$this->changedFiles[$pathAndFilename] = $status;
$currentDirectoryChanged = true;
}
if (isset($this->directoriesAndFiles[$path][$pathAndFilename])) {
unset($this->directoriesAndFiles[$path][$pathAndFilename]);
}
$nowDetectedFilesAndDirectories[$pathAndFilename] = 1;
}
if ($this->directoriesAndFiles[$path] !== array()) {
foreach (array_keys($this->directoriesAndFiles[$path]) as $pathAndFilename) {
$this->changedFiles[$pathAndFilename] = ChangeDetectionStrategyInterface::STATUS_DELETED;
if ($this->changeDetectionStrategy instanceof StrategyWithMarkDeletedInterface) {
$this->changeDetectionStrategy->setFileDeleted($pathAndFilename);
} else {
// This call is needed to mark the file deleted in any possibly existing caches of the strategy.
// The return value is not important as we know this file doesn't exist so we set the status to DELETED anyway.
$this->changeDetectionStrategy->getFileStatus($pathAndFilename);
}
}
$currentDirectoryChanged = true;
}
if ($currentDirectoryChanged) {
$this->setDetectedFilesForPath($path, $nowDetectedFilesAndDirectories);
}
return $currentDirectoryChanged;
}
