view mercurial/cacheutil.py @ 44988:fa151f7af275

phases: improve performance of _retractboundary

The old version repeatedly converts nodes to revisions, which is a
moderately expensive operation. Mapping all new changes once to
revisions and back at the end reduces the time spend in _retractboundary
during the unbundling of NetBSD's src from 67s to 17s.

Differential Revision: https://phab.mercurial-scm.org/D8641

# scmutil.py - Mercurial core utility functions
#
#  Copyright Matt Mackall <[e-mail]> and other
#
# 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

from . import repoview


def cachetocopy(srcrepo):
    """return the list of cache file valuable to copy during a clone"""
    # In local clones we're copying all nodes, not just served
    # ones. Therefore copy all branch caches over.
    cachefiles = [b'branch2']
    cachefiles += [b'branch2-%s' % f for f in repoview.filtertable]
    cachefiles += [b'rbc-names-v1', b'rbc-revs-v1']
    cachefiles += [b'tags2']
    cachefiles += [b'tags2-%s' % f for f in repoview.filtertable]
    cachefiles += [b'hgtagsfnodes1']
    return cachefiles