scanner: Update based on review comments.

mopidy/models.py

@@ -231,7 +231,7 @@ class Track(ImmutableObject):
     :type bitrate: integer
     :param musicbrainz_id: MusicBrainz ID
     :type musicbrainz_id: string
-    :param last_modified: integer representing last modifcation time
+    :param last_modified: Represents last modification time
     :type last_modified: integer
     """
 
@@ -266,7 +266,8 @@ class Track(ImmutableObject):
     musicbrainz_id = None
 
     #: Integer representing when the track was last modified, exact meaning
-    #: depends on source of track.
+    #: depends on source of track. For local files this is the mtime, for other
+    #: backends it could be a timestamp or simply a version counter.
     last_modified = 0
 
     def __init__(self, *args, **kwargs):

mopidy/scanner.py

@@ -58,8 +58,8 @@ def main():
     # TODO: missing error checking and other default setup code.
 
     audio = dummy_audio.DummyAudio()
-    local_backend_class = extensions['local'].get_backend_classes()
-    local_backend = local_backend_class[0](config, audio)
+    local_backend_classes = extensions['local'].get_backend_classes()
+    local_backend = local_backend_classes[0](config, audio)
 
     tracks = {}  # Current lib.
     update = []  # Paths to rescan for updates/adds.
@@ -97,7 +97,7 @@ def main():
         logging.debug('Debug info for %s: %s', uri, debug)
 
 
-    logging.info('Scanning %d files.', len(update))
+    logging.info('Scanning %d new/changed files.', len(update))
     scanner = Scanner(update, store, debug)
     try:
         scanner.start()