# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2019-11-17 13:54:41
# Node ID bfaf4c673becc361b55428bb426c09c942347256
# Parent  d86dede17392a7e2f979a4789a378d20cf4f0ecb

localrepo: recognize trivial request for '.'

Same logic as for `null`, this is a command request and skipping the revset
logic can avoid triggering the changelog filtering logic.

Differential Revision: https://phab.mercurial-scm.org/D7495

diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1708,6 +1708,10 @@ class localrepository(object):
         '''
         if specs == [b'null']:
             return revset.baseset([nullrev])
+        if specs == [b'.']:
+            quick_data = self._quick_access_changeid.get(b'.')
+            if quick_data is not None:
+                return revset.baseset([quick_data[0]])
         if user:
             m = revset.matchany(
                 self.ui,
diff --git a/tests/test-repo-filters-tiptoe.t b/tests/test-repo-filters-tiptoe.t
--- a/tests/test-repo-filters-tiptoe.t
+++ b/tests/test-repo-filters-tiptoe.t
@@ -70,7 +70,6 @@ Getting status of working copy
 Getting data about the working copy parent
 
   $ hg log -r '.' -T "{node}\n{date}\n"
-  debug.filters: computing revision filter for "visible"
   c2932ca7786be30b67154d541a8764fae5532261
   0.00
 
@@ -111,8 +110,8 @@ Getting working copy diff
 exporting the current changeset
 
   $ hg export
+  exporting patch:
   debug.filters: computing revision filter for "visible"
-  exporting patch:
   # HG changeset patch
   # User test
   # Date 0 0