config -e: Parse arguments in $EDITOR (fix #1200)

beets/ui/commands.py

@@ -23,6 +23,7 @@ import time
 import codecs
 import platform
 import re
+import shlex
 
 import beets
 from beets import ui
@@ -1503,7 +1504,12 @@ def config_edit():
 
     if 'EDITOR' in os.environ:
         editor = os.environ['EDITOR']
-        args = [editor, editor, path]
+        try:
+            editor = shlex.split(editor)
+        except ValueError:  # Malformed shell tokens.
+            editor = [editor]
+        args = editor + [path]
+        args.insert(1, args[0])
     elif platform.system() == 'Darwin':
         args = ['open', 'open', '-n', path]
     elif platform.system() == 'Windows':

docs/changelog.rst

@@ -68,6 +68,8 @@ Fixed:
   twice in the artist string. Thanks to Marc Addeo. :bug:`1179` :bug:`1181`
 * :doc:`/plugins/lastgenre`: Match songs more robustly when they contain
   dashes. Thanks to :user:`djl`. :bug:`1156`
+* The :ref:`config-cmd` command can now use ``$EDITOR`` variables with
+  arguments.
 
 .. _API changes: http://developer.echonest.com/forums/thread/3650
 .. _Plex: https://plex.tv/