# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1407546062 25200
# Node ID 7632f1f7994610b16ef5d977759b28af38430483
# Parent  640f3280559e68ca243ddbcd2bb2764dd4724cb1
evolve: do not even try to pull if all remote markers are known

previously we were explicitly pulling an empty bundle.

diff --git a/hgext/evolve.py b/hgext/evolve.py
--- a/hgext/evolve.py
+++ b/hgext/evolve.py
@@ -2658,6 +2658,10 @@
     ui = pullop.repo.ui
     obsexcmsg(ui, "pull obsolescence markers\n", True)
     boundaries = _buildpullobsmerkersboundaries(pullop)
+    if not set(boundaries['heads']) - set(boundaries['common']):
+        obsexcmsg(ui, "nothing to pull\n")
+        return None
+
     new = 0
 
     if b2xpull: