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130 lines
3.6 KiB
Python
Executable File
130 lines
3.6 KiB
Python
Executable File
# coding: utf-8
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import os, os.path
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import datetime
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import eyed3.id3, eyed3.mp3
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import db
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class Scanner:
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def __init__(self, session):
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self.__session = session
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self.__tracks = db.Track.query.all()
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self.__artists = db.Artist.query.all()
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self.__folders = db.Folder.query.all()
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self.__added_artists = 0
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self.__added_albums = 0
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self.__added_tracks = 0
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self.__deleted_artists = 0
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self.__deleted_albums = 0
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self.__deleted_tracks = 0
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def scan(self, folder):
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for root, subfolders, files in os.walk(folder.path):
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for f in files:
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if f.endswith('.mp3'):
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self.__scan_file(os.path.join(root, f), folder)
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folder.last_scan = datetime.datetime.now()
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def prune(self, folder):
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for track in [ t for t in self.__tracks if t.root_folder.id == folder.id and not os.path.exists(t.path) ]:
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track.album.tracks.remove(track)
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track.folder.tracks.remove(track)
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self.__session.delete(track)
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self.__deleted_tracks += 1
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for album in [ album for artist in self.__artists for album in artist.albums if len(album.tracks) == 0 ]:
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album.artist.albums.remove(album)
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self.__session.delete(album)
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self.__deleted_albums += 1
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for artist in [ a for a in self.__artists if len(a.albums) == 0 ]:
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self.__session.delete(artist)
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self.__deleted_artists += 1
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self.__cleanup_folder(folder)
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def check_cover_art(self, folder):
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folder.has_cover_art = os.path.isfile(os.path.join(folder.path, 'cover.jpg'))
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for f in folder.children:
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self.check_cover_art(f)
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def __scan_file(self, path, folder):
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tr = filter(lambda t: t.path == path, self.__tracks)
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if not tr:
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tr = db.Track(path = path, root_folder = folder, folder = self.__find_folder(path, folder))
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self.__tracks.append(tr)
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self.__added_tracks += 1
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else:
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tr = tr[0]
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if not os.path.getmtime(path) > tr.last_modification:
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return
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tag = eyed3.id3.Tag()
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tag.parse(path)
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info = eyed3.mp3.Mp3AudioFile(path).info
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tr.disc = tag.disc_num[0] or 1
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tr.number = tag.track_num[0] or 1
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tr.title = tag.title
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tr.year = tag.best_release_date.year if tag.best_release_date else None
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tr.genre = tag.genre.name if tag.genre else None
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tr.duration = info.time_secs
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tr.album = self.__find_album(tag.artist, tag.album)
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tr.bitrate = info.bit_rate[1]
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tr.last_modification = os.path.getmtime(path)
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def __find_album(self, artist, album):
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ar = self.__find_artist(artist)
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al = filter(lambda a: a.name == album, ar.albums)
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if al:
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return al[0]
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al = db.Album(name = album, artist = ar)
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self.__added_albums += 1
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return al
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def __find_artist(self, artist):
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ar = filter(lambda a: a.name == artist, self.__artists)
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if ar:
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return ar[0]
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ar = db.Artist(name = artist)
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self.__artists.append(ar)
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self.__session.add(ar)
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self.__added_artists += 1
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return ar
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def __find_folder(self, path, folder):
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path = os.path.dirname(path)
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fold = filter(lambda f: f.path == path, self.__folders)
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if fold:
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return fold[0]
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full_path = folder.path
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path = path[len(folder.path) + 1:]
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for name in path.split(os.sep):
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full_path = os.path.join(full_path, name)
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fold = filter(lambda f: f.path == full_path, self.__folders)
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if fold:
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folder = fold[0]
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else:
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folder = db.Folder(root = False, name = name, path = full_path, parent = folder)
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self.__folders.append(folder)
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return folder
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def __cleanup_folder(self, folder):
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for f in folder.children:
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self.__cleanup_folder(f)
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if len(folder.children) == 0 and len(folder.tracks) == 0 and not folder.root:
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folder.parent = None
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self.__session.delete(folder)
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def stats(self):
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return (self.__added_artists, self.__added_albums, self.__added_tracks), (self.__deleted_artists, self.__deleted_albums, self.__deleted_tracks)
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