convert: readd --filemap
To handle merges correctly, this revision adds a filemap_source class
that wraps a converter_source and does the work necessary to calculate
the subgraph we're interested in.
The wrapped converter_source must provide a new getchangedfiles method
that, given a revision rev, and an index N, returns the list of files
that are different in rev and its Nth parent.
The implementation depends on the ability to skip some revisions and to
change the parents field of the commit objects that we returned earlier.
To make the conversion restartable, we assume the revisons in the
revmapfile are topologically sorted.
# -*- 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from cStringIO import StringIO
import os
from tempfile import mktemp
from svn.core import SubversionException, Pool
import svn.ra
import svn.client
import svn.core
# 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 = svn.core.svn_config_get_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-dependant authentication methods
if hasattr(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 hasattr(svn.ra, 'reparent'):
self.client = svn.client.create_context(self.pool)
ab = _create_auth_baton(self.pool)
if False:
svn.core.svn_auth_set_parameter(
ab, svn.core.SVN_AUTH_PARAM_DEFAULT_USERNAME, self.username)
svn.core.svn_auth_set_parameter(
ab, svn.core.SVN_AUTH_PARAM_DEFAULT_PASSWORD, self.password)
self.client.auth_baton = ab
self.client.config = svn_config
try:
self.ra = svn.client.open_ra_session(
self.svn_url.encode('utf8'),
self.client, self.pool)
except SubversionException, (inst, num):
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:
def __init__(self, (reporter, report_baton)):
self._reporter = reporter
self._baton = report_baton
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))
def clone(self, offset=None):
"""See Transport.clone()."""
if offset is None:
return self.__class__(self.base)
return SvnRaTransport(urlutils.join(self.base, offset), ra=self.ra)