From d1ba309f36774fe71213c663a35dce49da8eae64 Mon Sep 17 00:00:00 2001
From: MartyLake <matthieu@talbot.audio>
Date: Mon, 22 Jul 2019 16:55:46 +0200
Subject: [PATCH] Add a new method that copied pathlib.path.as_posix

---
 beets/util/__init__.py     |  4 ++++
 beetsplug/playlist.py      | 11 +++++++++--
 beetsplug/smartplaylist.py | 10 +++++++---
 test/test_files.py         |  4 ++++
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/beets/util/__init__.py b/beets/util/__init__.py
index 29b2a73e7..9c87e7994 100644
--- a/beets/util/__init__.py
+++ b/beets/util/__init__.py
@@ -222,6 +222,10 @@ def sorted_walk(path, ignore=(), ignore_hidden=False, logger=None):
         for res in sorted_walk(cur, ignore, ignore_hidden, logger):
             yield res
 
+def pathlib_as_posix(path):
+    """Return the string representation of the path with forward (/)
+    slashes."""
+    return path.replace(b'\\', b'/')
 
 def mkdirall(path):
     """Make all the enclosing directories of path (like mkdir -p on the
diff --git a/beetsplug/playlist.py b/beetsplug/playlist.py
index 4ab02c6b7..af98a250c 100644
--- a/beetsplug/playlist.py
+++ b/beetsplug/playlist.py
@@ -18,6 +18,8 @@ import os
 import fnmatch
 import tempfile
 import beets
+from beets.util import (pathlib_as_posix)
+
 
 
 class PlaylistQuery(beets.dbcore.Query):
@@ -86,6 +88,7 @@ class PlaylistPlugin(beets.plugins.BeetsPlugin):
             'auto': False,
             'playlist_dir': '.',
             'relative_to': 'library',
+            'forward_slash': False,
         })
 
         self.playlist_dir = self.config['playlist_dir'].as_filename()
@@ -160,6 +163,8 @@ class PlaylistPlugin(beets.plugins.BeetsPlugin):
                     try:
                         new_path = self.changes[beets.util.normpath(lookup)]
                     except KeyError:
+                        if self.config['forward_slash'].get():
+                            line = pathlib_as_posix(line)
                         tempfp.write(line)
                     else:
                         if new_path is None:
@@ -170,8 +175,10 @@ class PlaylistPlugin(beets.plugins.BeetsPlugin):
                         changes += 1
                         if is_relative:
                             new_path = os.path.relpath(new_path, base_dir)
-
-                        tempfp.write(line.replace(original_path, new_path))
+                        line = line.replace(original_path, new_path)
+                        if self.config['forward_slash'].get():
+                            line = pathlib_as_posix(line)
+                        tempfp.write(line)
 
         if changes or deletions:
             self._log.info(
diff --git a/beetsplug/smartplaylist.py b/beetsplug/smartplaylist.py
index a83fc4d19..a440cb7fd 100644
--- a/beetsplug/smartplaylist.py
+++ b/beetsplug/smartplaylist.py
@@ -21,7 +21,7 @@ from __future__ import division, absolute_import, print_function
 from beets.plugins import BeetsPlugin
 from beets import ui
 from beets.util import (mkdirall, normpath, sanitize_path, syspath,
-                        bytestring_path)
+                        bytestring_path, pathlib_as_posix)
 from beets.library import Item, Album, parse_query_string
 from beets.dbcore import OrQuery
 from beets.dbcore.query import MultipleSort, ParsingError
@@ -37,7 +37,8 @@ class SmartPlaylistPlugin(BeetsPlugin):
             'relative_to': None,
             'playlist_dir': u'.',
             'auto': True,
-            'playlists': []
+            'playlists': [],
+            'forward_slash': False,
         })
 
         self._matched_playlists = None
@@ -206,6 +207,9 @@ class SmartPlaylistPlugin(BeetsPlugin):
             mkdirall(m3u_path)
             with open(syspath(m3u_path), 'wb') as f:
                 for path in m3us[m3u]:
-                    f.write(path + b'\n')
+                    if self.config['forward_slash'].get():
+                        path = pathlib_as_posix(path)
+                    f.write(path)
+                    f.write(b'\n')
 
         self._log.info(u"{0} playlists updated", len(self._matched_playlists))
diff --git a/test/test_files.py b/test/test_files.py
index ff055ac6f..87e4862f3 100644
--- a/test/test_files.py
+++ b/test/test_files.py
@@ -194,6 +194,10 @@ class HelperTest(_common.TestCase):
         p = 'a/b/c'
         a = ['a', 'b', 'c']
         self.assertEqual(util.components(p), a)
+    def test_forward_slash(self):
+        p = r'C:\a\b\c'
+        a = r'C:/a/b/c'
+        self.assertEqual(util.pathlib_as_posix(p), a)
 
 
 class AlbumFileTest(_common.TestCase):