hghave: move from requiring the PYTHON3 env var to looking for `python3`
We're starting to write new utility scripts in Python 3, and I think
it's reasonable to expect `python3` to be something we should use if
it's present. I wrote the regex to specifically ban Python 3 prior to
Python 3.5 because we won't ever support that.
I moved the only test that was using $PYTHON3 to just using `python3`
directly.
Differential Revision: https://phab.mercurial-scm.org/D4290
# scmutil.py - Mercurial core utility functions
#
# Copyright Matt Mackall <mpm@selenic.com> 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 = ['branch2']
cachefiles += ['branch2-%s' % f for f in repoview.filtertable]
cachefiles += ['rbc-names-v1', 'rbc-revs-v1']
cachefiles += ['tags2']
cachefiles += ['tags2-%s' % f for f in repoview.filtertable]
cachefiles += ['hgtagsfnodes1']
return cachefiles