607
596
# which is newer than a previously supplied older-than version.
608
597
# This indicates that some smart verb call is not guarded
609
598
# appropriately (it should simply not have been tried).
599
raise AssertionError(
611
600
"_remember_remote_is_before(%r) called, but "
612
601
"_remember_remote_is_before(%r) was called previously."
613
, version_tuple, self._remote_version_is_before)
614
if 'hpss' in debug.debug_flags:
615
ui.ui_factory.show_warning(
616
"_remember_remote_is_before(%r) called, but "
617
"_remember_remote_is_before(%r) was called previously."
618
% (version_tuple, self._remote_version_is_before))
602
% (version_tuple, self._remote_version_is_before))
620
603
self._remote_version_is_before = version_tuple
622
605
def protocol_version(self):
734
717
def _read_bytes(self, count):
735
718
"""See SmartClientStreamMedium._read_bytes."""
736
bytes_to_read = min(count, _MAX_READ_SIZE)
737
bytes = self._readable_pipe.read(bytes_to_read)
719
bytes = self._readable_pipe.read(count)
738
720
self._report_activity(len(bytes), 'read')
742
class SSHParams(object):
743
"""A set of parameters for starting a remote bzr via SSH."""
724
class SmartSSHClientMedium(SmartClientStreamMedium):
725
"""A client medium using SSH."""
745
727
def __init__(self, host, port=None, username=None, password=None,
746
bzr_remote_path='bzr'):
749
self.username = username
750
self.password = password
751
self.bzr_remote_path = bzr_remote_path
754
class SmartSSHClientMedium(SmartClientStreamMedium):
755
"""A client medium using SSH.
757
It delegates IO to a SmartClientSocketMedium or
758
SmartClientAlreadyConnectedSocketMedium (depending on platform).
761
def __init__(self, base, ssh_params, vendor=None):
728
base=None, vendor=None, bzr_remote_path=None):
762
729
"""Creates a client that will connect on the first use.
764
:param ssh_params: A SSHParams instance.
765
731
:param vendor: An optional override for the ssh vendor to use. See
766
732
bzrlib.transport.ssh for details on ssh vendors.
768
self._real_medium = None
769
self._ssh_params = ssh_params
770
# for the benefit of progress making a short description of this
772
self._scheme = 'bzr+ssh'
734
self._connected = False
736
self._password = password
738
self._username = username
773
739
# SmartClientStreamMedium stores the repr of this object in its
774
740
# _DebugCounter so we have to store all the values used in our repr
775
741
# method before calling the super init.
776
742
SmartClientStreamMedium.__init__(self, base)
743
self._read_from = None
744
self._ssh_connection = None
777
745
self._vendor = vendor
778
self._ssh_connection = None
746
self._write_to = None
747
self._bzr_remote_path = bzr_remote_path
748
# for the benefit of progress making a short description of this
750
self._scheme = 'bzr+ssh'
780
752
def __repr__(self):
781
if self._ssh_params.port is None:
784
maybe_port = ':%s' % self._ssh_params.port
785
return "%s(%s://%s@%s%s/)" % (
753
return "%s(connected=%r, username=%r, host=%r, port=%r)" % (
786
754
self.__class__.__name__,
788
self._ssh_params.username,
789
self._ssh_params.host,
792
760
def _accept_bytes(self, bytes):
793
761
"""See SmartClientStreamMedium.accept_bytes."""
794
762
self._ensure_connection()
795
self._real_medium.accept_bytes(bytes)
763
self._write_to.write(bytes)
764
self._report_activity(len(bytes), 'write')
797
766
def disconnect(self):
798
767
"""See SmartClientMedium.disconnect()."""
799
if self._real_medium is not None:
800
self._real_medium.disconnect()
801
self._real_medium = None
802
if self._ssh_connection is not None:
803
self._ssh_connection.close()
804
self._ssh_connection = None
768
if not self._connected:
770
self._read_from.close()
771
self._write_to.close()
772
self._ssh_connection.close()
773
self._connected = False
806
775
def _ensure_connection(self):
807
776
"""Connect this medium if not already connected."""
808
if self._real_medium is not None:
810
779
if self._vendor is None:
811
780
vendor = ssh._get_ssh_vendor()
813
782
vendor = self._vendor
814
self._ssh_connection = vendor.connect_ssh(self._ssh_params.username,
815
self._ssh_params.password, self._ssh_params.host,
816
self._ssh_params.port,
817
command=[self._ssh_params.bzr_remote_path, 'serve', '--inet',
783
self._ssh_connection = vendor.connect_ssh(self._username,
784
self._password, self._host, self._port,
785
command=[self._bzr_remote_path, 'serve', '--inet',
818
786
'--directory=/', '--allow-writes'])
819
io_kind, io_object = self._ssh_connection.get_sock_or_pipes()
820
if io_kind == 'socket':
821
self._real_medium = SmartClientAlreadyConnectedSocketMedium(
822
self.base, io_object)
823
elif io_kind == 'pipes':
824
read_from, write_to = io_object
825
self._real_medium = SmartSimplePipesClientMedium(
826
read_from, write_to, self.base)
828
raise AssertionError(
829
"Unexpected io_kind %r from %r"
830
% (io_kind, self._ssh_connection))
787
self._read_from, self._write_to = \
788
self._ssh_connection.get_filelike_channels()
789
self._connected = True
832
791
def _flush(self):
833
792
"""See SmartClientStreamMedium._flush()."""
834
self._real_medium._flush()
793
self._write_to.flush()
836
795
def _read_bytes(self, count):
837
796
"""See SmartClientStreamMedium.read_bytes."""
838
if self._real_medium is None:
797
if not self._connected:
839
798
raise errors.MediumNotConnected(self)
840
return self._real_medium.read_bytes(count)
799
bytes_to_read = min(count, _MAX_READ_SIZE)
800
bytes = self._read_from.read(bytes_to_read)
801
self._report_activity(len(bytes), 'read')
843
805
# Port 4155 is the default port for bzr://, registered with IANA.
845
807
BZR_DEFAULT_PORT = 4155
848
class SmartClientSocketMedium(SmartClientStreamMedium):
849
"""A client medium using a socket.
851
This class isn't usable directly. Use one of its subclasses instead.
810
class SmartTCPClientMedium(SmartClientStreamMedium):
811
"""A client medium using TCP."""
854
def __init__(self, base):
813
def __init__(self, host, port, base):
814
"""Creates a client that will connect on the first use."""
855
815
SmartClientStreamMedium.__init__(self, base)
816
self._connected = False
856
819
self._socket = None
857
self._connected = False
859
821
def _accept_bytes(self, bytes):
860
822
"""See SmartClientMedium.accept_bytes."""
861
823
self._ensure_connection()
862
824
osutils.send_all(self._socket, bytes, self._report_activity)
864
def _ensure_connection(self):
865
"""Connect this medium if not already connected."""
866
raise NotImplementedError(self._ensure_connection)
869
"""See SmartClientStreamMedium._flush().
871
For sockets we do no flushing. For TCP sockets we may want to turn off
872
TCP_NODELAY and add a means to do a flush, but that can be done in the
876
def _read_bytes(self, count):
877
"""See SmartClientMedium.read_bytes."""
878
if not self._connected:
879
raise errors.MediumNotConnected(self)
880
return osutils.read_bytes_from_socket(
881
self._socket, self._report_activity)
883
826
def disconnect(self):
884
827
"""See SmartClientMedium.disconnect()."""
885
828
if not self._connected:
937
870
(self._host, port, err_msg))
938
871
self._connected = True
941
class SmartClientAlreadyConnectedSocketMedium(SmartClientSocketMedium):
942
"""A client medium for an already connected socket.
944
Note that this class will assume it "owns" the socket, so it will close it
945
when its disconnect method is called.
948
def __init__(self, base, sock):
949
SmartClientSocketMedium.__init__(self, base)
951
self._connected = True
953
def _ensure_connection(self):
954
# Already connected, by definition! So nothing to do.
874
"""See SmartClientStreamMedium._flush().
876
For TCP we do no flushing. We may want to turn off TCP_NODELAY and
877
add a means to do a flush, but that can be done in the future.
880
def _read_bytes(self, count):
881
"""See SmartClientMedium.read_bytes."""
882
if not self._connected:
883
raise errors.MediumNotConnected(self)
884
return _read_bytes_from_socket(
885
self._socket.recv, count, self._report_activity)
958
888
class SmartClientStreamMediumRequest(SmartClientMediumRequest):