122 lines
4.4 KiB
Python
122 lines
4.4 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import logging
|
|
import os
|
|
import time
|
|
|
|
from mopidy import commands, exceptions
|
|
from mopidy.audio import scan
|
|
from mopidy.utils import path
|
|
|
|
from . import translator
|
|
|
|
logger = logging.getLogger('mopidy.backends.local.commands')
|
|
|
|
|
|
class LocalCommand(commands.Command):
|
|
def __init__(self):
|
|
super(LocalCommand, self).__init__()
|
|
self.add_child('scan', ScanCommand())
|
|
|
|
|
|
class ScanCommand(commands.Command):
|
|
help = "Scan local media files and populate the local library."
|
|
|
|
def __init__(self):
|
|
super(ScanCommand, self).__init__()
|
|
self.add_argument('--clear', action='store_true', dest='clear',
|
|
help='Clear out library storage')
|
|
self.add_argument('--limit', action='store', type=int, dest='limit',
|
|
default=0, help='Maxmimum number of tracks to scan')
|
|
|
|
def run(self, args, config):
|
|
media_dir = config['local']['media_dir']
|
|
scan_timeout = config['local']['scan_timeout']
|
|
flush_threshold = config['local']['scan_flush_threshold']
|
|
excluded_file_extensions = config['local']['excluded_file_extensions']
|
|
excluded_file_extensions = set(
|
|
file_ext.lower() for file_ext in excluded_file_extensions)
|
|
|
|
libraries = dict((l.name, l) for l in args.registry['local:library'])
|
|
library_name = config['local']['library']
|
|
|
|
if library_name not in libraries:
|
|
logger.warning('Local library %s not found', library_name)
|
|
return 1
|
|
|
|
library = libraries[library_name](config)
|
|
logger.debug('Using %s as the local library', library_name)
|
|
|
|
if args.clear:
|
|
if library.clear():
|
|
logging.info('Library succesfully cleared.')
|
|
return 0
|
|
logging.warning('Unable to clear library.')
|
|
return 1
|
|
|
|
uri_path_mapping = {}
|
|
uris_in_library = set()
|
|
uris_to_update = set()
|
|
uris_to_remove = set()
|
|
|
|
num_tracks = library.load()
|
|
logger.info('Checking %d tracks from library.', num_tracks)
|
|
|
|
for track in library.begin():
|
|
uri_path_mapping[track.uri] = translator.local_track_uri_to_path(
|
|
track.uri, media_dir)
|
|
try:
|
|
stat = os.stat(uri_path_mapping[track.uri])
|
|
if int(stat.st_mtime) > track.last_modified:
|
|
uris_to_update.add(track.uri)
|
|
uris_in_library.add(track.uri)
|
|
except OSError:
|
|
logger.debug('Missing file %s', track.uri)
|
|
uris_to_remove.add(track.uri)
|
|
|
|
logger.info('Removing %d missing tracks.', len(uris_to_remove))
|
|
for uri in uris_to_remove:
|
|
library.remove(uri)
|
|
|
|
logger.info('Checking %s for unknown tracks.', media_dir)
|
|
for relpath in path.find_files(media_dir):
|
|
uri = translator.path_to_local_track_uri(relpath)
|
|
file_extension = os.path.splitext(relpath)[1]
|
|
|
|
if file_extension.lower() in excluded_file_extensions:
|
|
logger.debug('Skipped %s: File extension excluded.', uri)
|
|
continue
|
|
|
|
if uri not in uris_in_library:
|
|
uris_to_update.add(uri)
|
|
uri_path_mapping[uri] = os.path.join(media_dir, relpath)
|
|
|
|
logger.info('Found %d unknown tracks.', len(uris_to_update))
|
|
logger.info('Scanning...')
|
|
|
|
scanner = scan.Scanner(scan_timeout)
|
|
count = 0
|
|
total = args.limit or len(uris_to_update)
|
|
start = time.time()
|
|
|
|
for uri in sorted(uris_to_update)[:args.limit or None]:
|
|
try:
|
|
data = scanner.scan(path.path_to_uri(uri_path_mapping[uri]))
|
|
track = scan.audio_data_to_track(data).copy(uri=uri)
|
|
library.add(track)
|
|
logger.debug('Added %s', track.uri)
|
|
except exceptions.ScannerError as error:
|
|
logger.warning('Failed %s: %s', uri, error)
|
|
|
|
count += 1
|
|
if count % flush_threshold == 0 or count == total:
|
|
duration = time.time() - start
|
|
remainder = duration / count * (total - count)
|
|
logger.info('Scanned %d of %d files in %ds, ~%ds left.',
|
|
count, total, duration, remainder)
|
|
library.flush()
|
|
|
|
library.close()
|
|
logger.info('Done scanning.')
|
|
return 0
|