diff mercurial/obsolete.py @ 46780:6266d19556ad

node: introduce nodeconstants class

In preparing for moving from SHA1 hashes to a modern hash function,
place nullid and other constant magic vules in a class. Provide the
active set of constants in the repository and push it down. Provide
nullid directly in strategic places like the repository as it is
accessed very often. This changeset introduces the API change, but not
the mechanical replacement of the node.py attributes itself.

Differential Revision: https://phab.mercurial-scm.org/D9750

--- a/mercurial/obsolete.py	Wed Mar 10 18:09:21 2021 +0100
+++ b/mercurial/obsolete.py	Wed Jan 13 16:14:58 2021 +0100
@@ -560,10 +560,11 @@
     # parents: (tuple of nodeid) or None, parents of predecessors
     #          None is used when no data has been recorded
 
-    def __init__(self, svfs, defaultformat=_fm1version, readonly=False):
+    def __init__(self, repo, svfs, defaultformat=_fm1version, readonly=False):
         # caches for various obsolescence related cache
         self.caches = {}
         self.svfs = svfs
+        self.repo = repo
         self._defaultformat = defaultformat
         self._readonly = readonly
 
@@ -806,7 +807,7 @@
     if defaultformat is not None:
         kwargs['defaultformat'] = defaultformat
     readonly = not isenabled(repo, createmarkersopt)
-    store = obsstore(repo.svfs, readonly=readonly, **kwargs)
+    store = obsstore(repo, repo.svfs, readonly=readonly, **kwargs)
     if store and readonly:
         ui.warn(
             _(b'obsolete feature not enabled but %i markers found!\n')