Stream-friendly smart playlists

This commit introduced a way to generate a stream-frienldy playlists.

beetsplug/smartplaylist.py

@@ -28,6 +28,12 @@ from beets.dbcore.query import MultipleSort, ParsingError
 import os
 import six
 
+try:
+    from urllib.request import pathname2url
+except ImportError:
+    # python2 is a bit different
+    from urllib import pathname2url
+
 
 class SmartPlaylistPlugin(BeetsPlugin):
 
@@ -39,8 +45,11 @@ class SmartPlaylistPlugin(BeetsPlugin):
             'auto': True,
             'playlists': [],
             'forward_slash': False,
+            'prefix': u'',
+            'urlencode': False,
         })
 
+        self.config['prefix'].redact = True  # May contain username/password.
         self._matched_playlists = None
         self._unmatched_playlists = None
 
@@ -201,6 +210,7 @@ class SmartPlaylistPlugin(BeetsPlugin):
                 if item_path not in m3us[m3u_name]:
                     m3us[m3u_name].append(item_path)
 
+        prefix = bytestring_path(self.config['prefix'].as_str())
         # Write all of the accumulated track lists to files.
         for m3u in m3us:
             m3u_path = normpath(os.path.join(playlist_dir,
@@ -210,6 +220,8 @@ class SmartPlaylistPlugin(BeetsPlugin):
                 for path in m3us[m3u]:
                     if self.config['forward_slash'].get():
                         path = path_as_posix(path)
-                    f.write(path + b'\n')
+                    if self.config['urlencode']:
+                        path = bytestring_path(pathname2url(path))
+                    f.write(prefix + path + b'\n')
 
         self._log.info(u"{0} playlists updated", len(self._matched_playlists))

docs/changelog.rst

@@ -2166,6 +2166,9 @@ And many little fixes and improvements:
 * When there's a parse error in a query (for example, when you type a
   malformed date in a :ref:`date query <datequery>`), beets now stops with an
   error instead of silently ignoring the query component.
+* :doc:`/plugins/smartplaylist`: Stream-friendly smart playlists.
+  The ``splupdate`` command can now also add a URL-encodable prefix to every
+  path in the playlist file.
 
 For developers:
 

docs/plugins/smartplaylist.rst

@@ -101,3 +101,7 @@ other configuration options are:
   If you intend to use this plugin to generate playlists for MPD on
   Windows, set this to yes.
   Default: Use system separator.
+- **prefix**: Prepend this string to every path in the playlist file. For
+  example, you could use the URL for a server where the music is stored.
+  Default: empty string.
+- **urlencoded**: URL-encode all paths. Default: ``no``.