mbsubmit: cleanup and completion

beetsplug/mbsubmit.py

@@ -16,16 +16,17 @@
 """Aid in submitting information to MusicBrainz.
 
 This plugin allows the user to print track information in a format that is
-parseable by the MusicBrainz track parser. Programmatic submitting is not
+parseable by the MusicBrainz track parser [1]. Programmatic submitting is not
 implemented by MusicBrainz yet.
+
+[1] http://wiki.musicbrainz.org/History:How_To_Parse_Track_Listings
 """
 
 from __future__ import (division, absolute_import, print_function,
                         unicode_literals)
 
 
 from beets.autotag import Recommendation
-from beets.importer import action
 from beets.plugins import BeetsPlugin
 from beets.ui.commands import PromptChoice
 from beetsplug.info import print_data
@@ -35,21 +36,26 @@ class MBSubmitPlugin(BeetsPlugin):
     def __init__(self):
         super(MBSubmitPlugin, self).__init__()
 
+        self.config.add({
+            'mb_format': '$track. $title - $artist ($length)',
+            'threshold': 'medium',
+        })
+
+        # Validate and store threshold.
+        self.threshold = self.config['threshold'].as_choice({
+            'none': Recommendation.none,
+            'low': Recommendation.low,
+            'medium': Recommendation.medium,
+            'strong': Recommendation.strong
+        })
+
         self.register_listener('before_choose_candidate',
                                self.before_choose_candidate_event)
 
     def before_choose_candidate_event(self, session, task):
-        if not task.candidates or task.rec == Recommendation.none:
-            return [PromptChoice('p', 'Print tracks', self.print_tracks),
-                    PromptChoice('k', 'print tracks and sKip',
-                                 self.print_tracks_and_skip)]
+        if task.rec <= self.threshold:
+            return [PromptChoice('p', 'Print tracks', self.print_tracks)]
 
-    # Callbacks for choices.
     def print_tracks(self, session, task):
         for i in task.items:
-            print_data(None, i, '$track. $artist - $title ($length)')
-
-    def print_tracks_and_skip(self, session, task):
-        for i in task.items:
-            print_data(None, i, '$track. $artist - $title ($length)')
-        return action.SKIP
+            print_data(None, i, self.config['mb_format'].get())

docs/changelog.rst

@@ -9,6 +9,9 @@ New:
 * :doc:`/plugins/fetchart`: The Google Images backend has been restored. It
   now requires an API key from Google. Thanks to :user:`lcharlick`.
   :bug:`1778`
+* A new :doc:`/plugins/mbsubmit` lets you print the tracks of an album in a
+  format parseable by MusicBrainz track parser during an interactive import
+  session. :bug:`1779`
 
 
 1.3.16 (December 28, 2015)

docs/plugins/index.rst

@@ -59,6 +59,7 @@ Each plugin has its own set of options that can be defined in a section bearing
    lastimport
    lyrics
    mbcollection
+   mbsubmit
    mbsync
    metasync
    missing
@@ -162,6 +163,7 @@ Miscellaneous
 * :doc:`ihate`: Automatically skip albums and tracks during the import process.
 * :doc:`info`: Print music files' tags to the console.
 * :doc:`mbcollection`: Maintain your MusicBrainz collection list.
+* :doc:`mbsubmit`: Print an album's tracks in a MusicBrainz-friendly format.
 * :doc:`missing`: List missing tracks.
 * :doc:`random`: Randomly choose albums and tracks from your library.
 * :doc:`filefilter`: Automatically skip files during the import process based

docs/plugins/mbsubmit.rst

@@ -0,0 +1,54 @@
+MusicBrainz Submit Plugin
+=========================
+
+The ``mbsubmit`` plugin provides an extra prompt choice during an import
+session that prints the tracks of the current album in a format that is
+parseable by MusicBrainz's `track parser`_.
+
+.. _track parser: http://wiki.musicbrainz.org/History:How_To_Parse_Track_Listings
+
+Usage
+-----
+
+Enable the ``mbsubmit`` plugin in your configuration (see :ref:`using-plugins`)
+and select the ``Print tracks`` choice which is by default displayed when no
+strong recommendations are found for the album::
+
+    No matching release found for 3 tracks.
+    For help, see: http://beets.readthedocs.org/en/latest/faq.html#nomatch
+    [U]se as-is, as Tracks, Group albums, Skip, Enter search, enter Id, aBort,
+    Print tracks? p
+    01. An Obscure Track - An Obscure Artist (3:37)
+    02. Another Obscure Track - An Obscure Artist (2:05)
+    03. The Third Track - Another Obscure Artist (3:02)
+
+    No matching release found for 3 tracks.
+    For help, see: http://beets.readthedocs.org/en/latest/faq.html#nomatch
+    [U]se as-is, as Tracks, Group albums, Skip, Enter search, enter Id, aBort,
+    Print tracks?
+
+As MusicBrainz currently does not support submitting albums programmatically,
+the recommended workflow is to copy the output of the ``Print tracks`` choice
+and paste it into the parser that can be found by clicking on the
+"`Track Parser`" button on MusicBrainz "`Tracklist`" tab.
+
+Configuration
+-------------
+
+To configure the plugin, make a ``mbsubmit:`` section in your configuration
+file. The following options are available:
+
+- **mb_format**: The format used for printing the tracks, defined using the
+  same template syntax as beets’ :doc:`path formats </reference/pathformat>`.
+  Default: ``$track. $title - $artist ($length)``.
+- **threshold**: The minimum strength of the autotagger recommendation that
+  will cause the ``Print tracks`` choice to be displayed on the prompt.
+  Default: ``medium`` (causing the choice to be displayed for all albums that
+  have a recommendation of medium strength or lower). Valid values: ``none``,
+  ``low``, ``medium``, ``strong``.
+
+Please note that some values of the ``threshold`` configuration option might
+require other ``beets`` command line switches to be enabled in order to work as
+intended. In particular, setting a threshold of ``strong`` will only display
+the prompt if ``timid`` mode is enabled. You can find more information about
+how the recommendation system works on :ref:`match-config`.

test/test_mbsubmit.py

@@ -0,0 +1,72 @@
+# -*- coding: utf-8 -*-
+# This file is part of beets.
+# Copyright 2016, Adrian Sampson and Diego Moreda.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+
+from __future__ import (division, absolute_import, print_function,
+                        unicode_literals)
+
+from test._common import unittest
+from test.helper import capture_stdout, control_stdin, TestHelper
+from test.test_importer import ImportHelper, AutotagStub
+from test.test_ui_importer import TerminalImportSessionSetup
+
+
+class MBSubmitPluginTest(TerminalImportSessionSetup, unittest.TestCase,
+                         ImportHelper, TestHelper):
+    def setUp(self):
+        self.setup_beets()
+        self.load_plugins('mbsubmit')
+        self._create_import_dir(2)
+        self._setup_import_session()
+        self.matcher = AutotagStub().install()
+
+    def tearDown(self):
+        self.unload_plugins()
+        self.teardown_beets()
+
+    def test_print_tracks_output(self):
+        """Test the output of the "print tracks" choice."""
+        self.matcher.matching = AutotagStub.BAD
+
+        with capture_stdout() as output:
+            with control_stdin('\n'.join(['p', 's'])):
+                # Print tracks; Skip
+                self.importer.run()
+
+        # Manually build the string for comparing the output.
+        tracklist = ('Print tracks? '
+                     '01. Tag Title 1 - Tag Artist (0:01)\n'
+                     '02. Tag Title 2 - Tag Artist (0:01)')
+        self.assertIn(tracklist, output.getvalue())
+
+    def test_print_tracks_output_as_tracks(self):
+        """Test the output of the "print tracks" choice, as singletons."""
+        self.matcher.matching = AutotagStub.BAD
+
+        with capture_stdout() as output:
+            with control_stdin('\n'.join(['t', 's', 'p', 's'])):
+                # as Tracks; Skip; Print tracks; Skip
+                self.importer.run()
+
+        # Manually build the string for comparing the output.
+        tracklist = ('Print tracks? '
+                     '02. Tag Title 2 - Tag Artist (0:01)')
+        self.assertIn(tracklist, output.getvalue())
+
+
+def suite():
+    return unittest.TestLoader().loadTestsFromName(__name__)
+
+if __name__ == b'__main__':
+    unittest.main(defaultTest='suite')