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Viewing changes to bzrlib/tests/transport_util.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-03-16 16:58:03 UTC
  • mfrom: (3224.3.1 news-typo)
  • Revision ID: pqm@pqm.ubuntu.com-20080316165803-tisoc9mpob9z544o
(Matt Nordhoff) Trivial NEWS typo fix

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bzrlib/tests/transport_util.py
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# Copyright (C) 2007-2010 Canonical Ltd
 
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# Copyright (C) 2007 Canonical Ltd
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#
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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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#
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import bzrlib.hooks
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from bzrlib import transport
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from bzrlib.tests import features
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# SFTPTransport offers better performances but relies on paramiko, if paramiko
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# is not available, we fallback to FtpTransport
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if features.paramiko.available():
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    from bzrlib.tests import test_sftp_transport
 
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from bzrlib.tests import test_sftp_transport
 
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if test_sftp_transport.paramiko_loaded:
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    from bzrlib.transport import sftp
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    _backing_scheme = 'sftp'
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    _backing_transport_class = sftp.SFTPTransport
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    """Dict-mapping hook name to a list of callables for transport hooks"""
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    def __init__(self):
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        super(TransportHooks, self).__init__("bzrlib.tests.transport_util",
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            "InstrumentedTransport.hooks")
 
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        super(TransportHooks, self).__init__()
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        # Invoked when the transport has just created a new connection.
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        # The api signature is (transport, connection, credentials)
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        self['_set_connection'] = []
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    hooks = TransportHooks()
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    def __init__(self, base, _from_transport=None):
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        if not base.startswith(_hooked_scheme + '://'):
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            raise ValueError(base)
 
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        assert base.startswith(_hooked_scheme + '://')
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        # We need to trick the backing transport class about the scheme used
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        # We'll do the reverse when we need to talk to the backing server
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        fake_base = _change_scheme_in(base, _hooked_scheme, _backing_scheme)
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            fake_base, _from_transport=_from_transport)
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        # The following is needed to minimize the effects of our trick above
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        # while retaining the best compatibility.
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        self._parsed_url.scheme = _hooked_scheme
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        super(ConnectedTransport, self).__init__(str(self._parsed_url))
 
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        self._scheme = _hooked_scheme
 
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        base = self._unsplit_url(self._scheme,
 
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                                 self._user, self._password,
 
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                                 self._host, self._port,
 
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                                 self._path)
 
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        super(ConnectedTransport, self).__init__(base)
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class ConnectionHookedTransport(InstrumentedTransport):
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    def setUp(self):
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        register_urlparse_netloc_protocol(_hooked_scheme)
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        register_transport(_hooked_scheme, ConnectionHookedTransport)
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        self.addCleanup(unregister_transport, _hooked_scheme,
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                        ConnectionHookedTransport)
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        self.addCleanup(_unregister_urlparse_netloc_protocol, _hooked_scheme)
 
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        def unregister():
 
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            unregister_transport(_hooked_scheme, ConnectionHookedTransport)
 
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            _unregister_urlparse_netloc_protocol(_hooked_scheme)
 
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        self.addCleanup(unregister)
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        super(TestCaseWithConnectionHookedTransport, self).setUp()
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        self.reset_connections()
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        # Add the 'hooked' url to the permitted url list.
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        # XXX: See TestCase.start_server. This whole module shouldn't need to
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        # exist - a bug has been filed on that. once its cleanedup/removed, the
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        # standard test support code will work and permit the server url
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        # correctly.
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        url = self.get_url()
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        t = transport.get_transport_from_url(url)
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        if t.base.endswith('work/'):
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            t = t.clone('../..')
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        self.permit_url(t.base)
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    def get_url(self, relpath=None):
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        super_self = super(TestCaseWithConnectionHookedTransport, self)
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        return url
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    def start_logging_connections(self):
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        self.overrideAttr(InstrumentedTransport, 'hooks', TransportHooks())
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        # We preserved the hooks class attribute. Now we install our hook.
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        ConnectionHookedTransport.hooks.install_named_hook(
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            '_set_connection', self._collect_connection, None)
 
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        ConnectionHookedTransport.hooks.install_hook('_set_connection',
 
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                                                     self._collect_connection)
 
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        # uninstall our hooks when we are finished
 
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        self.addCleanup(self.reset_hooks)
 
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    def reset_hooks(self):
 
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        InstrumentedTransport.hooks = TransportHooks()
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    def reset_connections(self):
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        self.connections = []