# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@fb.com>
# Date 1420673087 28800
# Node ID de73285cf50493bd27ac921b822457cac283319c
# Parent  a556fff7adcff3a4f92f8d44abff8af403e00689
discovery: do not build sample if undecided is smaller than sample size

This prevents crash with coming change in the mercurial discovery.

diff -r a556fff7adcf -r de73285cf504 hgext/evolve.py
--- a/hgext/evolve.py	Mon Jan 05 19:04:32 2015 -0800
+++ b/hgext/evolve.py	Wed Jan 07 15:24:47 2015 -0800
@@ -2390,7 +2390,10 @@
     while undecided:
 
         ui.note(_("sampling from both directions\n"))
-        sample = _takefullsample(dag, undecided, size=fullsamplesize)
+        if len(undecided) < fullsamplesize:
+            sample = set(undecided)
+        else:
+            sample = _takefullsample(dag, undecided, size=fullsamplesize)
 
         roundtrips += 1
         ui.debug("query %i; still undecided: %i, sample size is: %i\n"