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115 lines
2.8 KiB
Python
Executable File
115 lines
2.8 KiB
Python
Executable File
# coding: utf-8
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import os.path, uuid
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from db import Folder, Artist, session
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class FolderManager:
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SUCCESS = 0
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INVALID_ID = 1
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NAME_EXISTS = 2
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INVALID_PATH = 3
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PATH_EXISTS = 4
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NO_SUCH_FOLDER = 5
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@staticmethod
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def get(uid):
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if isinstance(uid, basestring):
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try:
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uid = uuid.UUID(uid)
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except:
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return FolderManager.INVALID_ID, None
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elif type(uid) is uuid.UUID:
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pass
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else:
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return FolderManager.INVALID_ID, None
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folder = Folder.query.get(uid)
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if not folder:
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return FolderManager.NO_SUCH_FOLDER, None
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return FolderManager.SUCCESS, folder
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@staticmethod
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def add(name, path):
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if Folder.query.filter(Folder.name == name and Folder.root == True).first():
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return FolderManager.NAME_EXISTS
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path = os.path.abspath(path)
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if not os.path.isdir(path):
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return FolderManager.INVALID_PATH
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folder = Folder.query.filter(Folder.path == path).first()
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if folder:
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return FolderManager.PATH_EXISTS
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folder = Folder(root = True, name = name, path = path)
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session.add(folder)
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session.commit()
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return FolderManager.SUCCESS
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@staticmethod
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def delete(uid):
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status, folder = FolderManager.get(uid)
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if status != FolderManager.SUCCESS:
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return status
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if not folder.root:
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return FolderManager.NO_SUCH_FOLDER
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# delete associated tracks and prune empty albums/artists
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for artist in Artist.query.all():
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for album in artist.albums[:]:
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for track in filter(lambda t: t.root_folder.id == folder.id, album.tracks):
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album.tracks.remove(track)
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session.delete(track)
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if len(album.tracks) == 0:
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artist.albums.remove(album)
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session.delete(album)
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if len(artist.albums) == 0:
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session.delete(artist)
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def cleanup_folder(folder):
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for f in folder.children:
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cleanup_folder(f)
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session.delete(folder)
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cleanup_folder(folder)
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session.commit()
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return FolderManager.SUCCESS
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@staticmethod
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def delete_by_name(name):
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folder = Folder.query.filter(Folder.name == name and Folder.root == True).first()
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if not folder:
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return FolderManager.NO_SUCH_FOLDER
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return FolderManager.delete(folder.id)
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@staticmethod
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def scan(uid, scanner):
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status, folder = FolderManager.get(uid)
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if status != FolderManager.SUCCESS:
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return status
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scanner.scan(folder)
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scanner.prune(folder)
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scanner.check_cover_art(folder)
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return FolderManager.SUCCESS
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@staticmethod
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def error_str(err):
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if err == FolderManager.SUCCESS:
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return 'No error'
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elif err == FolderManager.INVALID_ID:
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return 'Invalid folder id'
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elif err == FolderManager.NAME_EXISTS:
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return 'There is already a folder with that name. Please pick another one.'
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elif err == FolderManager.INVALID_PATH:
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return "The path doesn't exists or isn't a directory"
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elif err == FolderManager.PATH_EXISTS:
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return 'This path is already registered'
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elif err == FolderManager.NO_SUCH_FOLDER:
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return 'No such folder'
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return 'Unknown error'
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