mirror of
https://github.com/beetbox/beets.git
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142 lines
4.1 KiB
Python
142 lines
4.1 KiB
Python
# This file is part of beets.
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# Copyright 2016, Heinz Wiesinger.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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"""Synchronize information from music player libraries"""
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from abc import ABCMeta, abstractmethod
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from importlib import import_module
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from confuse import ConfigValueError
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from beets import ui
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from beets.plugins import BeetsPlugin
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METASYNC_MODULE = "beetsplug.metasync"
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# Dictionary to map the MODULE and the CLASS NAME of meta sources
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SOURCES = {
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"amarok": "Amarok",
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"itunes": "Itunes",
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}
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class MetaSource(metaclass=ABCMeta):
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def __init__(self, config, log):
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self.item_types = {}
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self.config = config
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self._log = log
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@abstractmethod
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def sync_from_source(self, item):
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pass
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def load_meta_sources():
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"""Returns a dictionary of all the MetaSources
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E.g., {'itunes': Itunes} with isinstance(Itunes, MetaSource) true
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"""
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meta_sources = {}
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for module_path, class_name in SOURCES.items():
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module = import_module(f"{METASYNC_MODULE}.{module_path}")
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meta_sources[class_name.lower()] = getattr(module, class_name)
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return meta_sources
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META_SOURCES = load_meta_sources()
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def load_item_types():
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"""Returns a dictionary containing the item_types of all the MetaSources"""
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item_types = {}
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for meta_source in META_SOURCES.values():
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item_types.update(meta_source.item_types)
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return item_types
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class MetaSyncPlugin(BeetsPlugin):
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item_types = load_item_types()
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def __init__(self):
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super().__init__()
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def commands(self):
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cmd = ui.Subcommand(
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"metasync", help="update metadata from music player libraries"
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)
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cmd.parser.add_option(
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"-p",
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"--pretend",
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action="store_true",
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help="show all changes but do nothing",
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)
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cmd.parser.add_option(
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"-s",
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"--source",
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default=[],
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action="append",
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dest="sources",
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help="comma-separated list of sources to sync",
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)
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cmd.parser.add_format_option()
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cmd.func = self.func
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return [cmd]
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def func(self, lib, opts, args):
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"""Command handler for the metasync function."""
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pretend = opts.pretend
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sources = []
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for source in opts.sources:
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sources.extend(source.split(","))
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sources = sources or self.config["source"].as_str_seq()
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meta_source_instances = {}
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items = lib.items(args)
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# Avoid needlessly instantiating meta sources (can be expensive)
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if not items:
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self._log.info("No items found matching query")
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return
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# Instantiate the meta sources
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for player in sources:
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try:
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cls = META_SOURCES[player]
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except KeyError:
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self._log.error("Unknown metadata source '{}'", player)
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try:
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meta_source_instances[player] = cls(self.config, self._log)
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except (ImportError, ConfigValueError) as e:
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self._log.error(
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"Failed to instantiate metadata source {!r}: {}", player, e
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)
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# Avoid needlessly iterating over items
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if not meta_source_instances:
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self._log.error("No valid metadata sources found")
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return
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# Sync the items with all of the meta sources
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for item in items:
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for meta_source in meta_source_instances.values():
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meta_source.sync_from_source(item)
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changed = ui.show_model_changes(item)
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if changed and not pretend:
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item.store()
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