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63 lines
2.3 KiB
ReStructuredText
63 lines
2.3 KiB
ReStructuredText
Zero Plugin
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===========
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The ``zero`` plugin allows you to null fields in files' metadata tags. Fields
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can be nulled unconditionally or conditioned on a pattern match. For example,
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the plugin can strip useless comments like "ripped by MyGreatRipper."
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The plugin can work in one of two modes:
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* ``fields``: A blacklist, where you choose the tags you want to remove (used by default).
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* ``keep_fields``: A whitelist, where you instead specify the tags you want to keep.
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To use the ``zero`` plugin, enable the plugin in your configuration
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(see :ref:`using-plugins`).
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Configuration
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-------------
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Make a ``zero:`` section in your configuration file. You can specify the
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fields to nullify and the conditions for nullifying them:
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* Set ``auto`` to ``yes`` to null fields automatically on import.
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Default: ``yes``.
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* Set ``fields`` to a whitespace-separated list of fields to remove. You can
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get the list of all available fields by running ``beet fields``. In
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addition, the ``images`` field allows you to remove any images
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embedded in the media file.
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* Set ``keep_fields`` to *invert* the logic of the plugin. Only these fields
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will be kept; other fields will be removed. Remember to set only
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``fields`` or ``keep_fields``---not both!
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* To conditionally filter a field, use ``field: [regexp, regexp]`` to specify
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regular expressions.
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* By default this plugin only affects files' tags; the beets database is left
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unchanged. To update the tags in the database, set the ``update_database`` option to true.
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For example::
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zero:
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fields: month day genre comments
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comments: [EAC, LAME, from.+collection, 'ripped by']
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genre: [rnb, 'power metal']
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update_database: true
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If a custom pattern is not defined for a given field, the field will be nulled
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unconditionally.
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Note that the plugin currently does not zero fields when importing "as-is".
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Manually Triggering Zero
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------------------------
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You can also type ``beet zero [QUERY]`` to manually invoke the plugin on music
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in your library.
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Preserving Album Art
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--------------------
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If you use the ``keep_fields`` option, the plugin will remove embedded album
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art from files' tags unless you tell it not to. To keep the album art, include
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the special field ``images`` in the list. For example::
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zero:
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keep_fields: title artist album year track genre images
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