diff mercurial/discovery.py @ 47012:d55b71393907

node: replace nullid and friends with nodeconstants class

The introduction of 256bit hashes require changes to nullid and other
constant magic values. Start pushing them down from repository and
revlog where sensible.

Differential Revision: https://phab.mercurial-scm.org/D9465

--- a/mercurial/discovery.py	Mon Apr 19 20:38:52 2021 -0400
+++ b/mercurial/discovery.py	Mon Mar 29 01:52:06 2021 +0200
@@ -12,7 +12,6 @@
 from .i18n import _
 from .node import (
     hex,
-    nullid,
     short,
 )
 
@@ -107,7 +106,7 @@
         if missingroots:
             discbases = []
             for n in missingroots:
-                discbases.extend([p for p in cl.parents(n) if p != nullid])
+                discbases.extend([p for p in cl.parents(n) if p != repo.nullid])
             # TODO remove call to nodesbetween.
             # TODO populate attributes on outgoing instance instead of setting
             # discbases.
@@ -116,7 +115,7 @@
             ancestorsof = heads
             commonheads = [n for n in discbases if n not in included]
         elif not commonheads:
-            commonheads = [nullid]
+            commonheads = [repo.nullid]
         self.commonheads = commonheads
         self.ancestorsof = ancestorsof
         self._revlog = cl
@@ -381,7 +380,7 @@
     # - a local outgoing head descended from update
     # - a remote head that's known locally and not
     #   ancestral to an outgoing head
-    if remoteheads == [nullid]:
+    if remoteheads == [repo.nullid]:
         # remote is empty, nothing to check.
         return