--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mercurial/scmwindows.py	Tue Feb 12 11:36:21 2013 -0600
@@ -0,0 +1,45 @@
+import os
+import osutil
+import _winreg
+
+def systemrcpath():
+    '''return default os-specific hgrc search path'''
+    rcpath = []
+    filename = util.executablepath()
+    # Use mercurial.ini found in directory with hg.exe
+    progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini')
+    if os.path.isfile(progrc):
+        rcpath.append(progrc)
+        return rcpath
+    # Use hgrc.d found in directory with hg.exe
+    progrcd = os.path.join(os.path.dirname(filename), 'hgrc.d')
+    if os.path.isdir(progrcd):
+        for f, kind in osutil.listdir(progrcd):
+            if f.endswith('.rc'):
+                rcpath.append(os.path.join(progrcd, f))
+        return rcpath
+    # else look for a system rcpath in the registry
+    value = util.lookupreg('SOFTWARE\\Mercurial', None,
+                           _winreg.HKEY_LOCAL_MACHINE)
+    if not isinstance(value, str) or not value:
+        return rcpath
+    value = util.localpath(value)
+    for p in value.split(os.pathsep):
+        if p.lower().endswith('mercurial.ini'):
+            rcpath.append(p)
+        elif os.path.isdir(p):
+            for f, kind in osutil.listdir(p):
+                if f.endswith('.rc'):
+                    rcpath.append(os.path.join(p, f))
+    return rcpath
+
+def userrcpath():
+    '''return os-specific hgrc search path to the user dir'''
+    home = os.path.expanduser('~')
+    path = [os.path.join(home, 'mercurial.ini'),
+            os.path.join(home, '.hgrc')]
+    userprofile = os.environ.get('USERPROFILE')
+    if userprofile:
+        path.append(os.path.join(userprofile, 'mercurial.ini'))
+        path.append(os.path.join(userprofile, '.hgrc'))
+    return path