diff -r 7732606b0767 -r 8b8920209317 mercurial/util.py
--- a/mercurial/util.py	Wed Oct 07 20:16:43 2009 +0200
+++ b/mercurial/util.py	Wed Oct 07 20:32:07 2009 +0200
@@ -16,7 +16,7 @@
 from i18n import _
 import error, osutil, encoding
 import cStringIO, errno, re, shutil, sys, tempfile, traceback
-import os, stat, time, calendar, random, textwrap
+import os, stat, time, calendar, textwrap
 import imp
 
 # Python compatibility
@@ -399,44 +399,6 @@
         return False
     return True
 
-def rename(src, dst):
-    '''atomically rename file src to dst, replacing dst if it exists'''
-    try:
-        os.rename(src, dst)
-    except OSError, err: # FIXME: check err (EEXIST ?)
-
-        # On windows, rename to existing file is not allowed, so we
-        # must delete destination first. But if a file is open, unlink
-        # schedules it for delete but does not delete it. Rename
-        # happens immediately even for open files, so we rename
-        # destination to a temporary name, then delete that. Then
-        # rename is safe to do.
-        # The temporary name is chosen at random to avoid the situation
-        # where a file is left lying around from a previous aborted run.
-        # The usual race condition this introduces can't be avoided as
-        # we need the name to rename into, and not the file itself. Due
-        # to the nature of the operation however, any races will at worst
-        # lead to the rename failing and the current operation aborting.
-
-        def tempname(prefix):
-            for tries in xrange(10):
-                temp = '%s-%08x' % (prefix, random.randint(0, 0xffffffff))
-                if not os.path.exists(temp):
-                    return temp
-            raise IOError, (errno.EEXIST, "No usable temporary filename found")
-
-        temp = tempname(dst)
-        os.rename(dst, temp)
-        try:
-            os.unlink(temp)
-        except:
-            # Some rude AV-scanners on Windows may cause the unlink to
-            # fail. Not aborting here just leaks the temp file, whereas
-            # aborting at this point may leave serious inconsistencies.
-            # Ideally, we would notify the user here.
-            pass
-        os.rename(src, dst)
-
 def unlink(f):
     """unlink and remove the directory if it is empty"""
     os.unlink(f)