use something similar to git log --first-parent for hg

jhford · Jul 31, 2013 · 2b24bf8 · 2b24bf8
1 parent b553247
commit 2b24bf8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/bisect_b2g/repository.py b/bisect_b2g/repository.py
@@ -170,7 +170,8 @@ def _resolve_tag(self, rev=None):
     def rev_list(self, start, end):
         log.debug("Fetching HG revision list for %s..%s", start, end)
         raw_xml = self.repo.hg_log(
-            "%s..%s" % (start, end), **{'--style': 'xml'})
+            "p1(first(children(%s))..first(children(%s)))" % (
+                start, end), **{'--style': 'xml'})
 
         root = ElementTree.XML(raw_xml.encode('utf-8'))
         output = []