--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mercurial/subrepo.py	Mon Jun 15 02:45:38 2009 -0500
@@ -0,0 +1,35 @@
+# subrepo.py - sub-repository handling for Mercurial
+#
+# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import config, util, errno
+
+def state(ctx):
+    p = config.config()
+    def read(f, sections=None, remap=None):
+        if f in ctx:
+            try:
+                p.parse(f, ctx[f].data(), sections, remap)
+            except IOError, err:
+                if err.errno != errno.ENOENT:
+                    raise
+    read('.hgsub')
+
+    rev = {}
+    if '.hgsubstate' in ctx:
+        try:
+            for l in ctx['.hgsubstate'].data().splitlines():
+                revision, path = l.split()
+                rev[path] = revision
+        except IOError, err:
+            if err.errno != errno.ENOENT:
+                raise
+
+    state = {}
+    for path, src in p[''].items():
+        state[path] = (src, rev.get(path, ''))
+
+    return state