# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1561134837 25200
# Node ID 15f04d652b627f6fd17117eb8bfa997e4f93bdcf
# Parent  84aff7e20c55452697d1054551e25d958cfd51f3
drawdag: don't crash when writing copy info to changesets

When writing copies to the changeset, localrepo.commitctx() will call
ctx.p1copies() and ctx.p2copies(). These crashed on simplecommitctx
because they ended up trying to access the manifest. drawdag doesn't
support copies at all, so we can simply override the methods to return
empty dicts.

Differential Revision: https://phab.mercurial-scm.org/D6565

diff -r 84aff7e20c55 -r 15f04d652b62 tests/drawdag.py
--- a/tests/drawdag.py	Fri Jun 21 23:35:04 2019 -0700
+++ b/tests/drawdag.py	Fri Jun 21 09:33:57 2019 -0700
@@ -300,6 +300,12 @@
     def commit(self):
         return self._repo.commitctx(self)
 
+    def p1copies(self):
+        return {}
+
+    def p2copies(self):
+        return {}
+
 def _walkgraph(edges):
     """yield node, parents in topologically order"""
     visible = set(edges.keys())