From 2e99a3b0a86ba4197d068a381072fe99833b464d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Louis=20V=C3=A9zina?=
 <5130500+morpheus65535@users.noreply.github.com>
Date: Thu, 10 Oct 2019 06:30:10 -0400
Subject: [PATCH] Continuing development.

---
 bazarr/helper.py | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/bazarr/helper.py b/bazarr/helper.py
index 2e5ddb6d2..699db5811 100644
--- a/bazarr/helper.py
+++ b/bazarr/helper.py
@@ -18,9 +18,15 @@ from utils import get_sonarr_platform, get_radarr_platform
 def sonarr_path_mapping_regex():
     global path_mapping
     global sonarr_regex
+    global sonarr_use_path_mapping
 
-    path_mapping = dict(ast.literal_eval(settings.general.path_mappings))
-    sonarr_regex = re.compile("|".join(map(re.escape, path_mapping.keys())))
+    path_mapping_temp = dict(ast.literal_eval(settings.general.path_mappings))
+    path_mapping = {k: v for k, v in path_mapping_temp.items() if k != ''}
+    if any(item for sublist in path_mapping for item in sublist):
+        sonarr_use_path_mapping = True
+        sonarr_regex = re.compile("|".join(path_mapping.keys()))
+    else:
+        sonarr_use_path_mapping = False
 
 
 def sonarr_path_mapping_reverse_regex():
@@ -56,8 +62,8 @@ def radarr_path_mapping_reverse_regex():
 
 
 def path_replace(path):
-    if path is None:
-        return None
+    if path is None or sonarr_use_path_mapping is False:
+        return path
 
     reverted_path = sonarr_regex.sub(lambda match: path_mapping[match.group(0)], path, count=1)