From 766c78a01d9ef8908f8254d9e8a19cac28c8d048 Mon Sep 17 00:00:00 2001
From: Michal Kolodziejski <crossner90@gmail.com>
Date: Wed, 6 Dec 2017 21:34:46 +0100
Subject: Fix handling of diffs with mnemonic prefixes

---
 pycodestyle.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'pycodestyle.py')

diff --git a/pycodestyle.py b/pycodestyle.py
index 1b06691..eb9ff63 100755
--- a/pycodestyle.py
+++ b/pycodestyle.py
@@ -1538,7 +1538,9 @@ def parse_udiff(diff, patterns=None, parent='.'):
             rv[path].update(range(row, row + nrows))
         elif line[:3] == '+++':
             path = line[4:].split('\t', 1)[0]
-            if path[:2] == 'b/':
+            # Git diff will use (i)ndex, (w)ork tree, (c)ommit and (o)bject
+            # instead of a/b/c/d as prefixes for patches
+            if path[:2] in ('b/', 'w/', 'i/'):
                 path = path[2:]
             rv[path] = set()
     return dict([(os.path.join(parent, path), rows)
-- 
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