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supysonic/scanner.py
2012-12-09 21:06:47 +01:00

93 lines
2.3 KiB
Python
Executable File

# coding: utf-8
import os.path
import datetime
import eyeD3
import db
def seconds_to_time(secs):
th = secs / 3600
tm = (secs % 3600) / 60
ts = secs % 60
return datetime.time(int(th), int(tm), int(ts))
class Scanner:
def __init__(self, session):
self.__session = session
self.__artists = db.Artist.query.all()
self.__added_artists = 0
self.__added_albums = 0
self.__added_tracks = 0
self.__deleted_artists = 0
self.__deleted_albums = 0
self.__deleted_tracks = 0
def scan(self, folder):
for root, subfolders, files in os.walk(folder.path):
for f in files:
if f.endswith('.mp3'):
self.__scan_file(os.path.join(root, f), folder)
folder.last_scan = datetime.datetime.now()
def prune(self, folder):
for artist in db.Artist.query.all():
for album in artist.albums[:]:
for track in filter(lambda t: t.folder.id == folder.id, album.tracks):
if not os.path.exists(track.path):
album.tracks.remove(track)
self.__session.delete(track)
self.__deleted_tracks += 1
if len(album.tracks) == 0:
artist.albums.remove(album)
self.__session.delete(album)
self.__deleted_albums += 1
if len(artist.albums) == 0:
self.__session.delete(artist)
self.__deleted_artists += 1
def __scan_file(self, path, folder):
tag = eyeD3.Tag()
tag.link(path)
al = self.__find_album(tag.getArtist(), tag.getAlbum())
tr = filter(lambda t: t.path == path, al.tracks)
if not tr:
tr = db.Track(path = path, folder = folder)
self.__added_tracks += 1
else:
tr = tr[0]
tr.disc = (tag.getDiscNum() or (1, 1))[0]
tr.number = tag.getTrackNum()[0]
tr.title = tag.getTitle()
tr.duration = seconds_to_time(eyeD3.Mp3AudioFile(path).getPlayTime())
tr.album = al
def __find_album(self, artist, album):
ar = self.__find_artist(artist)
al = filter(lambda a: a.name == album, ar.albums)
if al:
return al[0]
al = db.Album(name = album, artist = ar)
self.__added_albums += 1
return al
def __find_artist(self, artist):
ar = filter(lambda a: a.name == artist, self.__artists)
if ar:
return ar[0]
ar = db.Artist(name = artist)
self.__artists.append(ar)
self.__session.add(ar)
self.__added_artists += 1
return ar
def stats(self):
return (self.__added_artists, self.__added_albums, self.__added_tracks), (self.__deleted_artists, self.__deleted_albums, self.__deleted_tracks)