# HG changeset patch
# User Romain DEP. <rom1dep@gmail.com>
# Date 1589226971 -7200
# Node ID 8bfc6cc8e48003d2411551f2042d6cdeb0f12374
# Parent  288328c6711bba021eafc225ead2fd52a9b310eb
git: avoid looking-up parents for the null commit

Differential Revision: https://phab.mercurial-scm.org/D8541

diff -r 288328c6711b -r 8bfc6cc8e480 hgext/git/gitlog.py
--- a/hgext/git/gitlog.py	Mon May 11 21:56:43 2020 +0200
+++ b/hgext/git/gitlog.py	Mon May 11 21:56:11 2020 +0200
@@ -270,7 +270,10 @@
     def parentrevs(self, rev):
         n = self.node(rev)
         hn = gitutil.togitnode(n)
-        c = self.gitrepo[hn]
+        if hn != gitutil.nullgit:
+            c = self.gitrepo[hn]
+        else:
+            return nodemod.nullrev, nodemod.nullrev
         p1 = p2 = nodemod.nullrev
         if c.parents:
             p1 = self.rev(c.parents[0].id.raw)