Mercurial > hg
view mercurial/cacheutil.py @ 42136:10a6725dca6e
compression: introduce an official `zstd-revlog` requirement
This requirement supersedes `exp-compression-zstd`. However, we keep support for
the old requirement.
Strictly speaking, we do not need to add a new requirement, there are no logic
change making "new" repo incompatible with mercurial client using a version
that support `exp-compression-zstd`.
The choice to introduce a new requirement is motivated by the following:
* The previous requirement was explicitly "experimental". Using it by default
could confuse users.
* adding support for a hypothetical third compression engine will requires new
code, and will comes with its own requirement tool.
* We won't use it as the default for a while since I do not think we support
zstd on all platform. I can imagine we'll gain another (unrelated but on my
default) requirement by the time we turn this zstd by default.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 27 Mar 2019 18:27:03 +0100 |
parents | 72fdd99eb526 |
children | 57875cf423c9 |
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# 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