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https://github.com/beetbox/beets.git
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304 lines
11 KiB
Python
304 lines
11 KiB
Python
# This file is part of beets.
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# Copyright 2015
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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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"""Open metadata information in a text editor to let the user edit it.
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"""
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from __future__ import (division, absolute_import, print_function,
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unicode_literals)
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from beets import plugins
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from beets.ui import Subcommand, decargs, library, print_
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from beets.ui.commands import _do_query
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import subprocess
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import yaml
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import collections
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from sys import exit
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from beets import config
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from beets import ui
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from tempfile import NamedTemporaryFile
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import os
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import sys
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class EditPlugin(plugins.BeetsPlugin):
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def __init__(self):
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super(EditPlugin, self).__init__()
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self.config.add({
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'editor': '',
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'albumfields': 'album albumartist',
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'itemfields': 'track title artist album',
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'not_fields': 'id path',
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})
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# The editor field in the config lets you specify your editor.
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self.editor = self.config['editor'].as_str_seq()
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# the albumfields field in your config sets the tags that
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# you want to see/change for albums.
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# Defaults to album albumartist.
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# the ID tag will always be listed as it is used to identify the item
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self.albumfields = self.config['albumfields'].as_str_seq()
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# the itemfields field in your config sets the tags that
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# you want to see/change or items.
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# Defaults to track title artist album.
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# the ID tag will always be listed as it is used to identify the item
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self.itemfields = self.config['itemfields'].as_str_seq()
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# the not_fields field in your config sets the tags that
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# will not be changed.
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# If you happen to change them, they will be restored to the original
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# value. The ID of an item will never be changed.
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self.not_fields = self.config['not_fields'].as_str_seq()
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self.ed = None
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self.ed_args = None
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def commands(self):
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edit_command = Subcommand(
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'edit',
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help='interactively edit metadata'
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)
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edit_command.parser.add_option(
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'-e', '--extra',
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action='append',
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type='choice',
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choices=library.Item.all_keys() +
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library.Album.all_keys(),
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help='add additional fields to edit',
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)
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edit_command.parser.add_option(
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'--all',
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action='store_true', dest='all',
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help='edit all fields',
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)
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edit_command.parser.add_all_common_options()
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edit_command.func = self.editor_music
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return [edit_command]
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def editor_music(self, lib, opts, args):
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if self.editor:
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self.ed_args = self.editor[1:] if len(self.editor) > 1 else None
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self.ed = self.editor[0] if self.editor else None
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# main program flow
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# Get the objects to edit.
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query = decargs(args)
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items, albums = _do_query(lib, query, opts.album, False)
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objs = albums if opts.album else items
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if not objs:
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print_('Nothing to edit.')
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return
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# Confirmation from user about the queryresult
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for obj in objs:
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print_(format(obj))
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if not ui.input_yn(ui.colorize('action_default', "Edit? (y/n)"), True):
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return
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# get the fields from the objects
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if opts.all:
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data = self.get_all_fields(objs)
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else:
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fields = self.get_fields_from(objs, opts)
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data = self.get_selected_fields(fields, objs, opts)
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# present the yaml to the user and let her change it
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newyaml, oldyaml = self.change_objs(data)
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changed_objs = self.check_diff(newyaml, oldyaml, opts)
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if not changed_objs:
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print_("nothing to change")
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return
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self.save_items(changed_objs, lib, opts)
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def print_to_yaml(self, arg):
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# from object to yaml
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return yaml.safe_dump_all(
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arg,
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allow_unicode=True,
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default_flow_style=False)
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def yaml_to_dict(self, yam):
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# from yaml to object
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return yaml.load_all(yam)
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def get_fields_from(self, objs, opts):
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# construct a list of fields we need
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# see if we need album or item fields
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fields = self.albumfields if opts.album else self.itemfields
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# if opts.extra is given add those
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if opts.extra:
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fields.extend([f for f in opts.extra if f not in fields])
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# make sure we got the id for identification
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if 'id' not in fields:
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fields.insert(0, 'id')
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# we need all the fields
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if opts.all:
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fields = None
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print_(ui.colorize('text_warning', "edit all fields from:"))
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else:
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for it in fields:
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if opts.album:
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# check if it is really an albumfield
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if it not in library.Album.all_keys():
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print_(
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"{} not in albumfields.Removed it.".format(
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ui.colorize(
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'text_warning', it)))
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fields.remove(it)
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else:
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# if it is not an itemfield remove it
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if it not in library.Item.all_keys():
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print_(
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"{} not in itemfields.Removed it.".format(
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ui.colorize(
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'text_warning', it)))
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fields.remove(it)
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return fields
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def get_selected_fields(self, myfields, objs, opts):
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return [[{field: obj[field]}for field in myfields]for obj in objs]
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def get_all_fields(self, objs):
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return [[{field: obj[field]}for field in sorted(obj._fields)]
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for obj in objs]
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def change_objs(self, dict_items):
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# construct a yaml from the original object-fields
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# and make a yaml that we can change in the text-editor
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oldyaml = self.print_to_yaml(dict_items) # our backup
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newyaml = self.print_to_yaml(dict_items) # goes to user
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new = NamedTemporaryFile(suffix='.yaml', delete=False)
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new.write(newyaml)
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new.close()
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self.get_editor(new.name)
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# wait for user to edit yaml and continue
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if ui.input_yn(ui.colorize('action_default', "done?(y)"), True):
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while True:
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try:
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# reading the yaml back in
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with open(new.name) as f:
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newyaml = f.read()
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list(yaml.load_all(newyaml))
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os.remove(new.name)
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break
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except yaml.YAMLError as e:
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# some error-correcting mainly for empty-values
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# not being well-formated
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print_(ui.colorize('text_warning',
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"change this fault: {}".format(e)))
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print_("correct format for empty = - '' :")
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if ui.input_yn(
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ui.colorize('action_default', "fix?(y)"), True):
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self.get_editor(new.name)
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if ui.input_yn(ui.colorize(
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'action_default', "ok.fixed.(y)"), True):
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pass
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# only continue when all the mistakes are corrected
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return newyaml, oldyaml
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else:
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os.remove(new.name)
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exit()
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def open_file(self, startcmd):
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# opens a file in the standard program on all systems
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subprocess.call(('cmd /c start "" "' + startcmd + '"')
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if os.name is 'nt' else (
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'open' if sys.platform.startswith('darwin') else
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'xdg-open', startcmd))
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def get_editor(self, name):
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if not self.ed:
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# if not specified in config use $EDITOR from system
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editor = os.getenv('EDITOR')
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if editor:
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os.system(editor + " " + name)
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else:
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# let the system handle the file
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self.open_file(name)
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else:
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# use the editor specified in config
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callmethod = [self.ed]
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if self.ed_args:
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callmethod.extend(self.ed_args)
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callmethod.append(name)
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subprocess.check_call(callmethod)
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def nice_format(self, newset):
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# format the results so that we have an ID at the top
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# that we can change to a userfrienly title/artist format
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# when we present our results
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wellformed = collections.defaultdict(dict)
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for item in newset:
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for field in item:
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wellformed[item[0].values()[0]].update(field)
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return wellformed
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def save_items(self, oldnewlist, lib, opts):
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oldset, newset = zip(*oldnewlist)
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niceNewSet = self.nice_format(newset)
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niceOldSet = self.nice_format(oldset)
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niceCombiSet = zip(niceOldSet.items(), niceNewSet.items())
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newSetTitled = []
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oldSetTitled = []
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changedObjs = []
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for o, n in niceCombiSet:
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if opts.album:
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ob = lib.get_album(int(n[0]))
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else:
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ob = lib.get_item(n[0])
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# change id to item-string
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oldSetTitled.append((format(ob),) + o[1:])
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ob.update(n[1]) # update the object
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newSetTitled.append((format(ob),) + n[1:])
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changedObjs.append(ob)
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# see the changes we made
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for obj in changedObjs:
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ui.show_model_changes(obj)
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self.save_write(changedObjs)
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def save_write(self, changedob):
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if not ui.input_yn(
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ui.colorize('action_default', 'really modify? (y/n)')):
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return
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for ob in changedob:
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if config['import']['write'].get(bool):
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ob.try_sync()
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else:
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ob.store()
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print("changed: {0}".format(ob))
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return
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def check_diff(self, newyaml, oldyaml, opts):
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# make python objs from yamlstrings
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nl = self.yaml_to_dict(newyaml)
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ol = self.yaml_to_dict(oldyaml)
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return filter(None, map(self.reduce_it, ol, nl))
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def reduce_it(self, ol, nl):
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# if there is a forbidden field it resets them
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if ol != nl:
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for x in range(0, len(nl)):
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if ol[x] != nl[x] and ol[x].keys()[0]in self.not_fields:
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nl[x] = ol[x]
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print_("reset forbidden field.")
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if ol != nl: # only keep objects that have changed
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return ol, nl
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