D4368: treemanifest: avoid unnecessary copies/processing when using alwaysmatcher

[spectral (Kyle Lippincott)]

spectral created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D4368

AFFECTED FILES
  mercurial/manifest.py

CHANGE DETAILS

diff --git a/mercurial/manifest.py b/mercurial/manifest.py
--- a/mercurial/manifest.py
+++ b/mercurial/manifest.py
@@ -937,7 +937,7 @@
 
     def filesnotin(self, m2, match=None):
         '''Set of files in this manifest that are not in the other'''
-        if match:
+        if match and not match.always():
             m1 = self.matches(match)
             m2 = m2.matches(match)
             return m1.filesnotin(m2)
@@ -1081,7 +1081,7 @@
         the nodeid will be None and the flags will be the empty
         string.
         '''
-        if match:
+        if match and not match.always():
             m1 = self.matches(match)
             m2 = m2.matches(match)
             return m1.diff(m2, clean=clean)



To: spectral, #hg-reviewers
Cc: mercurial-devel