← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/transport/readonly.py

  • Committer: Ian Clatworthy
  • Date: 2009-03-02 06:35:43 UTC
  • mto: (0.23.30 groupcompress_rabin)
  • mto: This revision was merged to the branch mainline in revision 4280.
  • Revision ID: ian.clatworthy@canonical.com-20090302063543-czciz25uppelwhv0
groupcompress.py code cleanups

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/transport/readonly.py
1
 
# Copyright (C) 2006, 2009 Canonical Ltd
2
 
#
3
 
# This program is free software; you can redistribute it and/or modify
4
 
# it under the terms of the GNU General Public License as published by
5
 
# the Free Software Foundation; either version 2 of the License, or
6
 
# (at your option) any later version.
7
 
#
8
 
# This program is distributed in the hope that it will be useful,
9
 
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11
 
# GNU General Public License for more details.
12
 
#
13
 
# You should have received a copy of the GNU General Public License
14
 
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
 
 
17
 
"""Implementation of Transport that adapts another transport to be readonly."""
18
 
 
19
 
from bzrlib.errors import TransportNotPossible, NoSmartMedium
20
 
from bzrlib.transport import decorator
21
 
 
22
 
 
23
 
class ReadonlyTransportDecorator(decorator.TransportDecorator):
24
 
    """A decorator that can convert any transport to be readonly.
25
 
 
26
 
    This is requested via the 'readonly+' prefix to get_transport().
27
 
    """
28
 
 
29
 
    def append_file(self, relpath, f, mode=None):
30
 
        """See Transport.append_file()."""
31
 
        raise TransportNotPossible('readonly transport')
32
 
 
33
 
    def append_bytes(self, relpath, bytes, mode=None):
34
 
        """See Transport.append_bytes()."""
35
 
        raise TransportNotPossible('readonly transport')
36
 
 
37
 
    @classmethod
38
 
    def _get_url_prefix(self):
39
 
        """Readonly transport decorators are invoked via 'readonly+'"""
40
 
        return 'readonly+'
41
 
 
42
 
    def delete(self, relpath):
43
 
        """See Transport.delete()."""
44
 
        raise TransportNotPossible('readonly transport')
45
 
 
46
 
    def delete_tree(self, relpath):
47
 
        """See Transport.delete_tree()."""
48
 
        raise TransportNotPossible('readonly transport')
49
 
 
50
 
    def put_file(self, relpath, f, mode=None):
51
 
        """See Transport.put_file()."""
52
 
        raise TransportNotPossible('readonly transport')
53
 
 
54
 
    def put_bytes(self, relpath, bytes, mode=None):
55
 
        """See Transport.put_bytes()."""
56
 
        raise TransportNotPossible('readonly transport')
57
 
 
58
 
    def mkdir(self, relpath, mode=None):
59
 
        """See Transport.mkdir()."""
60
 
        raise TransportNotPossible('readonly transport')
61
 
 
62
 
    def is_readonly(self):
63
 
        """See Transport.is_readonly."""
64
 
        return True
65
 
 
66
 
    def rmdir(self, relpath):
67
 
        """See Transport.rmdir."""
68
 
        raise TransportNotPossible('readonly transport')
69
 
 
70
 
    def lock_write(self, relpath):
71
 
        """See Transport.lock_write."""
72
 
        raise TransportNotPossible('readonly transport')
73
 
 
74
 
    def get_smart_client(self):
75
 
        raise NoSmartServer(self.base)
76
 
 
77
 
    def get_smart_medium(self):
78
 
        raise NoSmartMedium(self)
79
 
 
80
 
 
81
 
def get_test_permutations():
82
 
    """Return the permutations to be used in testing."""
83
 
    from bzrlib.tests import test_server
84
 
    return [(ReadonlyTransportDecorator, test_server.ReadonlyServer),]