# HG changeset patch
# User Pulkit Goyal <7895pulkit@gmail.com>
# Date 2018-02-26 19:03:46
# Node ID e2b87e19c6efa87f12da17350207ea6d97062cfd
# Parent  1e1c1bfb0be452e5f33c6e802ed6798a027bdc62

pycompat: prevent encoding or decoding values if not required

pycompat.py has functions strurl and bytesurl which decodes and encodes the url
passed on Python 3 respectively. In some cases, strurl gets a url which is
already str and bytesurl gets a url which is already bytes. Let's prevent
encoding or decoding the values again if not required.

Differential Revision: https://phab.mercurial-scm.org/D2472

diff --git a/mercurial/pycompat.py b/mercurial/pycompat.py
--- a/mercurial/pycompat.py
+++ b/mercurial/pycompat.py
@@ -192,11 +192,15 @@ if ispy3:
 
     def strurl(url):
         """Converts a bytes url back to str"""
-        return url.decode(u'ascii')
+        if isinstance(url, bytes):
+            return url.decode(u'ascii')
+        return url
 
     def bytesurl(url):
         """Converts a str url to bytes by encoding in ascii"""
-        return url.encode(u'ascii')
+        if isinstance(url, str):
+            return url.encode(u'ascii')
+        return url
 
     def raisewithtb(exc, tb):
         """Raise exception with the given traceback"""