comparison 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

46779:49fd21f32695

    # meta:    binary blob in UTF-8, encoded metadata dictionary
    # date:    (float, int) tuple, date of marker creation
    # 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):
        # caches for various obsolescence related cache
        self.caches = {}
        self.svfs = svfs
        self._defaultformat = defaultformat
        self._readonly = readonly

    def __iter__(self):
        return iter(self._all)

    # rely on obsstore class default when possible.
    kwargs = {}
    if defaultformat is not None:
        kwargs['defaultformat'] = defaultformat
    readonly = not isenabled(repo, createmarkersopt)
    store = obsstore(repo.svfs, readonly=readonly, **kwargs)
    if store and readonly:
        ui.warn(
            _(b'obsolete feature not enabled but %i markers found!\n')
            % len(list(store))
        )

46780:6266d19556ad

    # meta:    binary blob in UTF-8, encoded metadata dictionary
    # date:    (float, int) tuple, date of marker creation
    # parents: (tuple of nodeid) or None, parents of predecessors
    #          None is used when no data has been recorded

    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

    def __iter__(self):
        return iter(self._all)

    # rely on obsstore class default when possible.
    kwargs = {}
    if defaultformat is not None:
        kwargs['defaultformat'] = defaultformat
    readonly = not isenabled(repo, createmarkersopt)
    store = obsstore(repo, repo.svfs, readonly=readonly, **kwargs)
    if store and readonly:
        ui.warn(
            _(b'obsolete feature not enabled but %i markers found!\n')
            % len(list(store))
        )