hgext/convert/transport.py
author Patrick Mezard <pmezard@gmail.com>
Wed, 22 Apr 2009 23:13:39 +0200
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parent 6215 cb0434795fcd
child 8778 c5f36402daad
permissions -rw-r--r--
convert/svn: support more OS specific auth providers via svn 1.6 API
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# -*- coding: utf-8 -*-
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# Copyright (C) 2007 Daniel Holth <dholth@fastmail.fm>
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# This is a stripped-down version of the original bzr-svn transport.py,
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# Copyright (C) 2006 Jelmer Vernooij <jelmer@samba.org>
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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from svn.core import SubversionException, Pool
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import svn.ra
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import svn.client
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import svn.core
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# Some older versions of the Python bindings need to be
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# explicitly initialized. But what we want to do probably
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# won't work worth a darn against those libraries anyway!
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svn.ra.initialize()
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svn_config = svn.core.svn_config_get_config(None)
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def _create_auth_baton(pool):
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    """Create a Subversion authentication baton. """
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    import svn.client
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    # Give the client context baton a suite of authentication
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    # providers.h
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    providers = [
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        svn.client.get_simple_provider(pool),
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        svn.client.get_username_provider(pool),
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        svn.client.get_ssl_client_cert_file_provider(pool),
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        svn.client.get_ssl_client_cert_pw_file_provider(pool),
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        svn.client.get_ssl_server_trust_file_provider(pool),
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        ]
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    # Platform-dependant authentication methods
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    getprovider = getattr(svn.core, 'svn_auth_get_platform_specific_provider',
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                          None)
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    if getprovider:
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        # Available in svn >= 1.6
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        for name in ('gnome_keyring', 'keychain', 'kwallet', 'windows'):
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            for type in ('simple', 'ssl_client_cert_pw', 'ssl_server_trust'):
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                p = getprovider(name, type, pool)
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                if p:
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                    providers.append(p)
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    else:
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        if hasattr(svn.client, 'get_windows_simple_provider'):
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            providers.append(svn.client.get_windows_simple_provider(pool))
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    return svn.core.svn_auth_open(providers, pool)
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class NotBranchError(SubversionException):
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    pass
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class SvnRaTransport(object):
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    """
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    Open an ra connection to a Subversion repository.
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    """
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    def __init__(self, url="", ra=None):
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        self.pool = Pool()
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        self.svn_url = url
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        self.username = ''
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        self.password = ''
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        # Only Subversion 1.4 has reparent()
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        if ra is None or not hasattr(svn.ra, 'reparent'):
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            self.client = svn.client.create_context(self.pool)
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            ab = _create_auth_baton(self.pool)
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            if False:
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                svn.core.svn_auth_set_parameter(
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                    ab, svn.core.SVN_AUTH_PARAM_DEFAULT_USERNAME, self.username)
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                svn.core.svn_auth_set_parameter(
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                    ab, svn.core.SVN_AUTH_PARAM_DEFAULT_PASSWORD, self.password)
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            self.client.auth_baton = ab
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            self.client.config = svn_config
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            try:
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                self.ra = svn.client.open_ra_session(
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                    self.svn_url.encode('utf8'),
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                    self.client, self.pool)
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            except SubversionException, (inst, num):
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                if num in (svn.core.SVN_ERR_RA_ILLEGAL_URL,
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                           svn.core.SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED,
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                           svn.core.SVN_ERR_BAD_URL):
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                    raise NotBranchError(url)
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                raise
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        else:
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            self.ra = ra
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            svn.ra.reparent(self.ra, self.svn_url.encode('utf8'))
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    class Reporter:
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        def __init__(self, (reporter, report_baton)):
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            self._reporter = reporter
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            self._baton = report_baton
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        def set_path(self, path, revnum, start_empty, lock_token, pool=None):
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            svn.ra.reporter2_invoke_set_path(self._reporter, self._baton,
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                        path, revnum, start_empty, lock_token, pool)
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        def delete_path(self, path, pool=None):
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            svn.ra.reporter2_invoke_delete_path(self._reporter, self._baton,
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                    path, pool)
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        def link_path(self, path, url, revision, start_empty, lock_token,
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                      pool=None):
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            svn.ra.reporter2_invoke_link_path(self._reporter, self._baton,
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                    path, url, revision, start_empty, lock_token,
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                    pool)
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        def finish_report(self, pool=None):
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            svn.ra.reporter2_invoke_finish_report(self._reporter,
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                    self._baton, pool)
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        def abort_report(self, pool=None):
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            svn.ra.reporter2_invoke_abort_report(self._reporter,
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                    self._baton, pool)
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    def do_update(self, revnum, path, *args, **kwargs):
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        return self.Reporter(svn.ra.do_update(self.ra, revnum, path, *args, **kwargs))