view mercurial/cacheutil.py @ 51898:159854151f0f

statichttprepo: use a context manager to handle a file descriptor

I'm not sure if this should be reduced to `vfs.exists()`.  That would seem to be
equivalent code (since the result of the read is ignored, so we can't tell if
the file actually has content, which has been the state of things going back to
98b6c3dde237), but this is at least safer file descriptor handling.

# scmutil.py - Mercurial core utility functions
#
#  Copyright Olivia 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 annotations

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'branch3']
    cachefiles += [b'branch3-%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