Mercurial > hg
view hgext/convert/transport.py @ 35506:fa865878a849
lfs: show a friendly message when pushing lfs to a server without lfs enabled
Upfront disclaimer: I don't know anything about the wire protocol, and this was
pretty much cargo-culted from largefiles, and then clonebundles, since it seems
more modern. I was surprised that exchange.push() will ensure all of the proper
requirements when exchanging between two local repos, but doesn't care when one
is remote.
All this new capability marker does is inform the client that the extension is
enabled remotely. It may or may not contain commits with external blobs.
Open issues:
- largefiles uses 'largefiles=serve' for its capability. Someday I hope to
be able to push lfs blobs to an `hg serve` instance. That will probably
require a distinct capability. Should it change to '=serve' then? Or just
add an 'lfs-serve' capability then?
- The flip side of this is more complicated. It looks like largefiles adds an
'lheads' command for the client to signal to the server that the extension
is loaded. That is then converted to 'heads' and sent through the normal
wire protocol plumbing. A client using the 'heads' command directly is
kicked out with a message indicating that the largefiles extension must be
loaded. We could do similar with 'lfsheads', but then a repo with both
largefiles and lfs blobs can't be pushed over the wire. Hopefully somebody
with more wire protocol experience can think of something else. I see
'x-hgarg-1' on some commands in the tests, but not on heads, and didn't dig
any further.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 23 Dec 2017 17:49:12 -0500 |
parents | ffb30661f672 |
children | 2372284d9457 |
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# -*- coding: utf-8 -*- # Copyright (C) 2007 Daniel Holth <dholth@fastmail.fm> # This is a stripped-down version of the original bzr-svn transport.py, # Copyright (C) 2006 Jelmer Vernooij <jelmer@samba.org> # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, see <http://www.gnu.org/licenses/>. from __future__ import absolute_import import svn.client import svn.core import svn.ra Pool = svn.core.Pool SubversionException = svn.core.SubversionException from mercurial import ( util, ) # Some older versions of the Python bindings need to be # explicitly initialized. But what we want to do probably # won't work worth a darn against those libraries anyway! svn.ra.initialize() svn_config = None def _create_auth_baton(pool): """Create a Subversion authentication baton. """ import svn.client # Give the client context baton a suite of authentication # providers.h providers = [ svn.client.get_simple_provider(pool), svn.client.get_username_provider(pool), svn.client.get_ssl_client_cert_file_provider(pool), svn.client.get_ssl_client_cert_pw_file_provider(pool), svn.client.get_ssl_server_trust_file_provider(pool), ] # Platform-dependent authentication methods getprovider = getattr(svn.core, 'svn_auth_get_platform_specific_provider', None) if getprovider: # Available in svn >= 1.6 for name in ('gnome_keyring', 'keychain', 'kwallet', 'windows'): for type in ('simple', 'ssl_client_cert_pw', 'ssl_server_trust'): p = getprovider(name, type, pool) if p: providers.append(p) else: if util.safehasattr(svn.client, 'get_windows_simple_provider'): providers.append(svn.client.get_windows_simple_provider(pool)) return svn.core.svn_auth_open(providers, pool) class NotBranchError(SubversionException): pass class SvnRaTransport(object): """ Open an ra connection to a Subversion repository. """ def __init__(self, url="", ra=None): self.pool = Pool() self.svn_url = url self.username = '' self.password = '' # Only Subversion 1.4 has reparent() if ra is None or not util.safehasattr(svn.ra, 'reparent'): self.client = svn.client.create_context(self.pool) ab = _create_auth_baton(self.pool) self.client.auth_baton = ab global svn_config if svn_config is None: svn_config = svn.core.svn_config_get_config(None) self.client.config = svn_config try: self.ra = svn.client.open_ra_session( self.svn_url, self.client, self.pool) except SubversionException as xxx_todo_changeme: (inst, num) = xxx_todo_changeme.args if num in (svn.core.SVN_ERR_RA_ILLEGAL_URL, svn.core.SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED, svn.core.SVN_ERR_BAD_URL): raise NotBranchError(url) raise else: self.ra = ra svn.ra.reparent(self.ra, self.svn_url.encode('utf8')) class Reporter(object): def __init__(self, reporter_data): self._reporter, self._baton = reporter_data def set_path(self, path, revnum, start_empty, lock_token, pool=None): svn.ra.reporter2_invoke_set_path(self._reporter, self._baton, path, revnum, start_empty, lock_token, pool) def delete_path(self, path, pool=None): svn.ra.reporter2_invoke_delete_path(self._reporter, self._baton, path, pool) def link_path(self, path, url, revision, start_empty, lock_token, pool=None): svn.ra.reporter2_invoke_link_path(self._reporter, self._baton, path, url, revision, start_empty, lock_token, pool) def finish_report(self, pool=None): svn.ra.reporter2_invoke_finish_report(self._reporter, self._baton, pool) def abort_report(self, pool=None): svn.ra.reporter2_invoke_abort_report(self._reporter, self._baton, pool) def do_update(self, revnum, path, *args, **kwargs): return self.Reporter(svn.ra.do_update(self.ra, revnum, path, *args, **kwargs))