replace os.stat with os.lstat in some where.

mercurial/dirstate.py

@@ -471,7 +471,7 b' class dirstate(object):'
             # check the common case first
             if type_ == 'n':
                 if not st:
-                    st = os.stat(self.wjoin(fn))
+                    st = os.lstat(self.wjoin(fn))
                 if size >= 0 and (size != st.st_size
                                   or (mode ^ st.st_mode) & 0100):
                     modified.append(fn)

mercurial/localrepo.py

@@ -242,7 +242,7 b' class localrepository(object):'
                 raise repo.RepoError(_("unknown revision '%s'") % key)
 
     def dev(self):
-        return os.stat(self.path).st_dev
+        return os.lstat(self.path).st_dev
 
     def local(self):
         return True

mercurial/util.py

@@ -474,7 +474,7 b' def _readlock_file(pathname):'
 
 def nlinks(pathname):
     """Return number of hardlinks for the given file."""
-    return os.stat(pathname).st_nlink
+    return os.lstat(pathname).st_nlink
 
 if hasattr(os, 'link'):
     os_link = os.link
@@ -625,10 +625,10 b' else:'
 
     def is_exec(f, last):
         """check whether a file is executable"""
-        return (os.stat(f).st_mode & 0100 != 0)
+        return (os.lstat(f).st_mode & 0100 != 0)
 
     def set_exec(f, mode):
-        s = os.stat(f).st_mode
+        s = os.lstat(f).st_mode
         if (s & 0100 != 0) == mode:
             return
         if mode:

mercurial/util_win32.py

@@ -162,7 +162,7 b' def nlinks(pathname):'
         fh.Close()
         return res[7]
     except pywintypes.error:
-        return os.stat(pathname).st_nlink
+        return os.lstat(pathname).st_nlink
 
 def testpid(pid):
     '''return True if pid is still running or unable to