|
|
# requirements.py - objects and functions related to repository requirements
|
|
|
#
|
|
|
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
from __future__ import absolute_import
|
|
|
|
|
|
# When narrowing is finalized and no longer subject to format changes,
|
|
|
# we should move this to just "narrow" or similar.
|
|
|
NARROW_REQUIREMENT = b'narrowhg-experimental'
|
|
|
|
|
|
# Enables sparse working directory usage
|
|
|
SPARSE_REQUIREMENT = b'exp-sparse'
|
|
|
|
|
|
# Enables the internal phase which is used to hide changesets instead
|
|
|
# of stripping them
|
|
|
INTERNAL_PHASE_REQUIREMENT = b'internal-phase'
|
|
|
|
|
|
# Stores manifest in Tree structure
|
|
|
TREEMANIFEST_REQUIREMENT = b'treemanifest'
|
|
|
|
|
|
# Increment the sub-version when the revlog v2 format changes to lock out old
|
|
|
# clients.
|
|
|
REVLOGV2_REQUIREMENT = b'exp-revlogv2.1'
|
|
|
|
|
|
# A repository with the sparserevlog feature will have delta chains that
|
|
|
# can spread over a larger span. Sparse reading cuts these large spans into
|
|
|
# pieces, so that each piece isn't too big.
|
|
|
# Without the sparserevlog capability, reading from the repository could use
|
|
|
# huge amounts of memory, because the whole span would be read at once,
|
|
|
# including all the intermediate revisions that aren't pertinent for the chain.
|
|
|
# This is why once a repository has enabled sparse-read, it becomes required.
|
|
|
SPARSEREVLOG_REQUIREMENT = b'sparserevlog'
|
|
|
|
|
|
# A repository with the sidedataflag requirement will allow to store extra
|
|
|
# information for revision without altering their original hashes.
|
|
|
SIDEDATA_REQUIREMENT = b'exp-sidedata-flag'
|
|
|
|
|
|
# A repository with the the copies-sidedata-changeset requirement will store
|
|
|
# copies related information in changeset's sidedata.
|
|
|
COPIESSDC_REQUIREMENT = b'exp-copies-sidedata-changeset'
|
|
|
|
|
|
# The repository use persistent nodemap for the changelog and the manifest.
|
|
|
NODEMAP_REQUIREMENT = b'persistent-nodemap'
|
|
|
|