# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@logilab.fr>
# Date 1332236347 -3600
# Node ID 8e93e1f67205cef9d86cfcb0ef56dca396f5f61b
# Parent  b0b23d9eede5714d3097d53cefacd62515bdc5f4
obsolete: define an unstable property on context

diff -r b0b23d9eede5 -r 8e93e1f67205 hgext/obsolete.py
--- a/hgext/obsolete.py	Tue Mar 20 10:38:38 2012 +0100
+++ b/hgext/obsolete.py	Tue Mar 20 10:39:07 2012 +0100
@@ -109,6 +109,14 @@
 
 context.changectx.obsolete = obsolete
 
+def unstable(ctx):
+    """is the changeset unstable (have obsolete ancestor)"""
+    if ctx.node() is None:
+        return False
+    return ctx.rev() in ctx._repo._unstableset
+
+context.changectx.unstable = unstable
+
 
 ### revset
 #############################