# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 1539353961 -7200
# Node ID ba70e3acf58a6a929a23f5b80e08c98a4ad776d4
# Parent  b843356d4ae1edff311d7c4ba52ca021f6aeaed1
revlog: update pure nodecache start lookup offset on insertion

test-storage.py is failing in pure builds because the population of the node
cache isn't accounting for the new starting offset after a revlog insertion.

This commit updates the node cache start offset to account for insertions.

I'm not 100% convinced this is the ideal solution. But it works and seems
correct.

Differential Revision: https://phab.mercurial-scm.org/D4996

diff -r b843356d4ae1 -r ba70e3acf58a mercurial/revlog.py
--- a/mercurial/revlog.py	Wed Oct 03 13:57:42 2018 -0700
+++ b/mercurial/revlog.py	Fri Oct 12 16:19:21 2018 +0200
@@ -1937,6 +1937,11 @@
         self.index.append(e)
         self.nodemap[node] = curr
 
+        # Reset the pure node cache start lookup offset to account for new
+        # revision.
+        if self._nodepos is not None:
+            self._nodepos = curr
+
         entry = self._io.packentry(e, self.node, self.version, curr)
         self._writeentry(transaction, ifh, dfh, entry, deltainfo.data,
                          link, offset)