/usr/share/mopidy/mopidy/core/library.py is in mopidy 0.17.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from collections import defaultdict
import urlparse
import pykka
class LibraryController(object):
pykka_traversable = True
def __init__(self, backends, core):
self.backends = backends
self.core = core
def _get_backend(self, uri):
uri_scheme = urlparse.urlparse(uri).scheme
return self.backends.with_library_by_uri_scheme.get(uri_scheme, None)
def _get_backends_to_uris(self, uris):
if uris:
backends_to_uris = defaultdict(list)
for uri in uris:
backend = self._get_backend(uri)
if backend is not None:
backends_to_uris[backend].append(uri)
else:
backends_to_uris = dict([
(b, None) for b in self.backends.with_library])
return backends_to_uris
def find_exact(self, query=None, uris=None, **kwargs):
"""
Search the library for tracks where ``field`` is ``values``.
If the query is empty, and the backend can support it, all available
tracks are returned.
If ``uris`` is given, the search is limited to results from within the
URI roots. For example passing ``uris=['file:']`` will limit the search
to the local backend.
Examples::
# Returns results matching 'a' from any backend
find_exact({'any': ['a']})
find_exact(any=['a'])
# Returns results matching artist 'xyz' from any backend
find_exact({'artist': ['xyz']})
find_exact(artist=['xyz'])
# Returns results matching 'a' and 'b' and artist 'xyz' from any
# backend
find_exact({'any': ['a', 'b'], 'artist': ['xyz']})
find_exact(any=['a', 'b'], artist=['xyz'])
# Returns results matching 'a' if within the given URI roots
# "file:///media/music" and "spotify:"
find_exact(
{'any': ['a']}, uris=['file:///media/music', 'spotify:'])
find_exact(any=['a'], uris=['file:///media/music', 'spotify:'])
:param query: one or more queries to search for
:type query: dict
:param uris: zero or more URI roots to limit the search to
:type uris: list of strings or :class:`None`
:rtype: list of :class:`mopidy.models.SearchResult`
"""
query = query or kwargs
futures = [
backend.library.find_exact(query=query, uris=backend_uris)
for (backend, backend_uris)
in self._get_backends_to_uris(uris).items()]
return [result for result in pykka.get_all(futures) if result]
def lookup(self, uri):
"""
Lookup the given URI.
If the URI expands to multiple tracks, the returned list will contain
them all.
:param uri: track URI
:type uri: string
:rtype: list of :class:`mopidy.models.Track`
"""
backend = self._get_backend(uri)
if backend:
return backend.library.lookup(uri).get()
else:
return []
def refresh(self, uri=None):
"""
Refresh library. Limit to URI and below if an URI is given.
:param uri: directory or track URI
:type uri: string
"""
if uri is not None:
backend = self._get_backend(uri)
if backend:
backend.library.refresh(uri).get()
else:
futures = [
b.library.refresh(uri) for b in self.backends.with_library]
pykka.get_all(futures)
def search(self, query=None, uris=None, **kwargs):
"""
Search the library for tracks where ``field`` contains ``values``.
If the query is empty, and the backend can support it, all available
tracks are returned.
If ``uris`` is given, the search is limited to results from within the
URI roots. For example passing ``uris=['file:']`` will limit the search
to the local backend.
Examples::
# Returns results matching 'a' in any backend
search({'any': ['a']})
search(any=['a'])
# Returns results matching artist 'xyz' in any backend
search({'artist': ['xyz']})
search(artist=['xyz'])
# Returns results matching 'a' and 'b' and artist 'xyz' in any
# backend
search({'any': ['a', 'b'], 'artist': ['xyz']})
search(any=['a', 'b'], artist=['xyz'])
# Returns results matching 'a' if within the given URI roots
# "file:///media/music" and "spotify:"
search({'any': ['a']}, uris=['file:///media/music', 'spotify:'])
search(any=['a'], uris=['file:///media/music', 'spotify:'])
:param query: one or more queries to search for
:type query: dict
:param uris: zero or more URI roots to limit the search to
:type uris: list of strings or :class:`None`
:rtype: list of :class:`mopidy.models.SearchResult`
"""
query = query or kwargs
futures = [
backend.library.search(query=query, uris=backend_uris)
for (backend, backend_uris)
in self._get_backends_to_uris(uris).items()]
return [result for result in pykka.get_all(futures) if result]
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