changeset 22472:2e2577b0ccbe

contrib/synthrepo: only generate 2 parents if model contains merges If `hg analyze` is run on a revision set which contains no merges, then `hg synthesize` will raise IndexError trying to select from p2distance, which will be empty.
author Mike Edgar <adgar@google.com>
date Fri, 12 Sep 2014 17:43:37 -0400
parents cc5f94db672b
children ca85306b3eb2
files contrib/synthrepo.py
diffstat 1 files changed, 2 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/contrib/synthrepo.py	Fri Sep 12 12:28:30 2014 -0700
+++ b/contrib/synthrepo.py	Fri Sep 12 17:43:37 2014 -0400
@@ -307,7 +307,8 @@
 
         # the number of heads will grow without bound if we use a pure
         # model, so artificially constrain their proliferation
-        if pick(parents) == 2 or len(heads) > random.randint(1, 20):
+        toomanyheads = len(heads) > random.randint(1, 20)
+        if p2distance[0] and (pick(parents) == 2 or toomanyheads):
             r2, p2 = pickhead(heads.difference([r1]), p2distance)
         else:
             r2, p2 = nullrev, nullid