Temporarily disable watcher when scanning

supysonic/daemon/__init__.py

@@ -62,7 +62,7 @@ class Daemon(object):
         if extensions:
             extensions = extensions.split(' ')
 
-        self.__scanner = ScannerThread(args = folders, kwargs = { 'force': force, 'extensions': extensions })
+        self.__scanner = ScannerThread(self.__watcher, folders, kwargs = { 'force': force, 'extensions': extensions, 'notify_watcher': False })
         self.__scanner.start()
 
     def terminate(self):
@@ -71,25 +71,31 @@ class Daemon(object):
             self.__watcher.stop()
 
 class ScannerThread(Thread):
-    def __init__(self, *args, **kwargs):
+    def __init__(self, watcher, folders, *args, **kwargs):
         super(ScannerThread, self).__init__(*args, **kwargs)
+        self.__watcher = watcher
+        self.__folders = folders
         self.__scanned = {}
 
     def run(self):
-        force = self._kwargs.get('force', False)
-        extensions = self._kwargs.get('extensions')
-        s = Scanner(force = force, extensions = extensions)
+        s = Scanner(*self._args, **self._kwargs)
 
         with db_session:
-            if self._args:
-                folders = Folder.select(lambda f: f.root and f.name in self._args)
+            if self.__folders:
+                folders = Folder.select(lambda f: f.root and f.name in self.__folders)
             else:
                 folders = Folder.select(lambda f: f.root)
 
             for f in folders:
                 name = f.name
+                if self.__watcher is not None:
+                    self.__watcher.remove_folder(f)
+                try:
                     logger.info('Scanning %s', name)
                     s.scan(f, lambda x: self.__scanned.update({ name: x }))
+                finally:
+                    if self.__watcher is not None:
+                        self.__watcher.add_folder(f)
 
             s.finish()
 

supysonic/scanner.py

@@ -16,6 +16,8 @@ from datetime import datetime
 from pony.orm import db_session
 
 from .covers import find_cover_in_folder, CoverFile
+from .daemon.exceptions import DaemonUnavailableError
+from .daemon.client import DaemonClient
 from .db import Folder, Artist, Album, Track, User
 from .db import StarredFolder, StarredArtist, StarredAlbum, StarredTrack
 from .db import RatingFolder, RatingTrack
@@ -34,11 +36,12 @@ class Stats(object):
         self.errors = []
 
 class Scanner:
-    def __init__(self, force = False, extensions = None):
+    def __init__(self, force = False, extensions = None, notify_watcher = True):
         if extensions is not None and not isinstance(extensions, list):
             raise TypeError('Invalid extensions type')
 
         self.__force = force
+        self.__notify = notify_watcher
 
         self.__stats = Stats()
         self.__extensions = extensions
@@ -47,6 +50,11 @@ class Scanner:
         if not isinstance(folder, Folder):
             raise TypeError('Expecting Folder instance, got ' + str(type(folder)))
 
+        if self.__notify:
+            daemon = DaemonClient()
+            try: daemon.remove_watched_folder(folder.path)
+            except DaemonUnavailableError: pass
+
         # Scan new/updated files
         to_scan = [ folder.path ]
         scanned = 0
@@ -96,6 +104,10 @@ class Scanner:
 
         folder.last_scan = int(time.time())
 
+        if self.__notify:
+            try: daemon.add_watched_folder(folder.path)
+            except DaemonUnavailableError: pass
+
     @db_session
     def finish(self):
         self.__stats.deleted.albums = Album.prune()

supysonic/watcher.py

@@ -224,6 +224,12 @@ class ScannerProcessingQueue(Thread):
             self.__timer = Timer(self.__timeout, self.__wakeup)
             self.__timer.start()
 
+    def unschedule_paths(self, basepath):
+        with self.__cond:
+            for path in self.__queue.keys():
+                if path.startswith(basepath):
+                    del self.__queue[path]
+
     def __wakeup(self):
         with self.__cond:
             self.__cond.notify()
@@ -262,10 +268,18 @@ class SupysonicWatcher(object):
         watch = self.__observer.schedule(self.__handler, path, recursive = True)
         self.__folders[path] = watch
 
-    def remove_folder(self, path):
+    def remove_folder(self, folder):
+        if isinstance(folder, Folder):
+            path = folder.path
+        elif isinstance(folder, strtype):
+            path = folder
+        else:
+            raise TypeError('Expecting string or Folder, got ' + str(type(folder)))
+
         logger.info("Unscheduling watcher for %s", path)
         self.__observer.unschedule(self.__folders[path])
         del self.__folders[path]
+        self.__queue.unschedule_paths(path)
 
     def start(self):
         self.__queue = ScannerProcessingQueue(self.__delay)