# HG changeset patch
# User FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
# Date 2011-12-16 12:09:40
# Node ID eacfd851cb9ee55c4400a01c83d0c159659a1749
# Parent  37a6e9765015a0bb957d126204878f890565f09a

icasefs: consider as case sensitive if there is no counterevidence, for safety

for safety, this patch prevents case-less name from misleading into
case insensitivity, even though such names should not be used.

diff --git a/mercurial/util.py b/mercurial/util.py
--- a/mercurial/util.py
+++ b/mercurial/util.py
@@ -595,9 +595,12 @@ def checkcase(path):
     """
     s1 = os.stat(path)
     d, b = os.path.split(path)
-    p2 = os.path.join(d, b.upper())
-    if path == p2:
-        p2 = os.path.join(d, b.lower())
+    b2 = b.upper()
+    if b == b2:
+        b2 = b.lower()
+        if b == b2:
+            return True # no evidence against case sensitivity
+    p2 = os.path.join(d, b2)
     try:
         s2 = os.stat(p2)
         if s2 == s1: