void LibraryWatcher::AddDirectory(const Directory& dir,
const SubdirectoryList& subdirs) {
watched_dirs_[dir.id] = dir;
if (subdirs.isEmpty()) {
// This is a new directory that we've never seen before.
// Scan it fully.
ScanTransaction transaction(this, dir.id, false);
transaction.SetKnownSubdirs(subdirs);
transaction.AddToProgressMax(1);
ScanSubdirectory(dir.path, Subdirectory(), &transaction);
} else {
// We can do an incremental scan - looking at the mtimes of each
// subdirectory and only rescan if the directory has changed.
ScanTransaction transaction(this, dir.id, true);
transaction.SetKnownSubdirs(subdirs);
transaction.AddToProgressMax(subdirs.count());
for (const Subdirectory& subdir : subdirs) {
if (stop_requested_) return;
if (scan_on_startup_) ScanSubdirectory(subdir.path, subdir, &transaction);
if (monitor_) AddWatch(dir, subdir.path);
}
}
emit CompilationsNeedUpdating();
}
void LibraryWatcher::RescanPathsNow() {
for (int dir : rescan_queue_.keys()) {
if (stop_requested_) return;
ScanTransaction transaction(this, dir, false);
transaction.AddToProgressMax(rescan_queue_[dir].count());
for (const QString& path : rescan_queue_[dir]) {
if (stop_requested_) return;
Subdirectory subdir;
subdir.directory_id = dir;
subdir.mtime = 0;
subdir.path = path;
ScanSubdirectory(path, subdir, &transaction);
}
}
rescan_queue_.clear();
emit CompilationsNeedUpdating();
}
FilesystemDevice::FilesystemDevice(
const QUrl& url, DeviceLister* lister,
const QString& unique_id, DeviceManager* manager,
Application* app,
int database_id, bool first_time)
: FilesystemMusicStorage(url.toLocalFile()),
ConnectedDevice(url, lister, unique_id, manager, app, database_id, first_time),
watcher_(new LibraryWatcher),
watcher_thread_(new QThread(this))
{
watcher_->moveToThread(watcher_thread_);
watcher_thread_->start(QThread::IdlePriority);
watcher_->set_device_name(manager->data(manager->index(
manager->FindDeviceById(unique_id)), DeviceManager::Role_FriendlyName).toString());
watcher_->set_backend(backend_);
watcher_->set_task_manager(app_->task_manager());
connect(backend_, SIGNAL(DirectoryDiscovered(Directory,SubdirectoryList)),
watcher_, SLOT(AddDirectory(Directory,SubdirectoryList)));
connect(backend_, SIGNAL(DirectoryDeleted(Directory)),
watcher_, SLOT(RemoveDirectory(Directory)));
connect(watcher_, SIGNAL(NewOrUpdatedSongs(SongList)),
backend_, SLOT(AddOrUpdateSongs(SongList)));
connect(watcher_, SIGNAL(SongsMTimeUpdated(SongList)),
backend_, SLOT(UpdateMTimesOnly(SongList)));
connect(watcher_, SIGNAL(SongsDeleted(SongList)),
backend_, SLOT(DeleteSongs(SongList)));
connect(watcher_, SIGNAL(SubdirsDiscovered(SubdirectoryList)),
backend_, SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
connect(watcher_, SIGNAL(SubdirsMTimeUpdated(SubdirectoryList)),
backend_, SLOT(AddOrUpdateSubdirs(SubdirectoryList)));
connect(watcher_, SIGNAL(CompilationsNeedUpdating()),
backend_, SLOT(UpdateCompilations()));
connect(watcher_, SIGNAL(ScanStarted(int)), SIGNAL(TaskStarted(int)));
}
