Mercurial > hg
view hg @ 47234:616b8f412676
revlogv2: introduce a very basic docket file
This is the first stone toward using a docket file in revlogv2. Right now the
docket is very basic and only store the version number (which is -also- stored
into the index file…) and the other files have fixed name. This new
implementation break transactionally… but they are no test checking
transactionally for revlogv2… So I take this as an opportunity to start small.
They are no usage of revlogv2 outside of tests anyway.
The docket keeps the `.i` naming used by previous version index to preserve a
unique entry point. We could decide to use a different name and look it up
first, or to fully rework this in a future "store" version. However that does
not seems necessary right now.
We will re-introduces transactionality (and associated testing…) in a later
changesets.
A long list of TODOs have been added to the relevant comment.
Differential Revision: https://phab.mercurial-scm.org/D10624
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 03 May 2021 12:34:11 +0200 |
parents | d4ba4d51f85f |
children | 769cd5703b2c |
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#!/usr/bin/env python3 # # mercurial - scalable distributed SCM # # Copyright 2005-2007 Olivia Mackall <olivia@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 import os import sys libdir = '@LIBDIR@' if libdir != '@' 'LIBDIR' '@': if not os.path.isabs(libdir): libdir = os.path.join( os.path.dirname(os.path.realpath(__file__)), libdir ) libdir = os.path.abspath(libdir) sys.path.insert(0, libdir) # Make `pip install --user ...` packages available to the official Windows # build. Most py2 packaging installs directly into the system python # environment, so no changes are necessary for other platforms. The Windows # py2 package uses py2exe, which lacks a `site` module. Hardcode it according # to the documentation. if getattr(sys, 'frozen', None) == 'console_exe': vi = sys.version_info sys.path.append( os.path.join( os.environ['APPDATA'], 'Python', 'Python%d%d' % (vi[0], vi[1]), 'site-packages', ) ) from hgdemandimport import tracing with tracing.log('hg script'): # enable importing on demand to reduce startup time try: if sys.version_info[0] < 3 or sys.version_info >= (3, 6): import hgdemandimport hgdemandimport.enable() except ImportError: sys.stderr.write( "abort: couldn't find mercurial libraries in [%s]\n" % ' '.join(sys.path) ) sys.stderr.write("(check your install and PYTHONPATH)\n") sys.exit(-1) from mercurial import dispatch dispatch.run()