1
# Copyright (C) 2008 Canonical Ltd
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
"""UI helper for the push command."""
19
from bzrlib import (builtins, bzrdir, errors, revision as _mod_revision,
21
from bzrlib.trace import note, warning
24
def _show_push_branch(br_from, revision_id, location, to_file, verbose=False,
25
overwrite=False, remember=False, stacked_on=None, create_prefix=False,
26
use_existing_dir=False):
27
"""Push a branch to a location.
29
:param br_from: the source branch
30
:param revision_id: the revision-id to push up to
31
:param location: the url of the destination
32
:param to_file: the output stream
33
:param verbose: if True, display more output than normal
34
:param overwrite: if False, a current branch at the destination may not
35
have diverged from the source, otherwise the push fails
36
:param remember: if True, store the location as the push location for
38
:param stacked_on: the url of the branch, if any, to stack on;
39
if set, only the revisions not in that branch are pushed
40
:param create_prefix: if True, create the necessary parent directories
41
at the destination if they don't already exist
42
:param use_existing_dir: if True, proceed even if the destination
43
directory exists without a current .bzr directory in it
45
to_transport = transport.get_transport(location)
46
br_to = repository_to = dir_to = None
48
dir_to = bzrdir.BzrDir.open_from_transport(to_transport)
49
except errors.NotBranchError:
50
pass # Didn't find anything
52
# If we can open a branch, use its direct repository, otherwise see
53
# if there is a repository without a branch.
55
br_to = dir_to.open_branch()
56
except errors.NotBranchError:
57
# Didn't find a branch, can we find a repository?
59
repository_to = dir_to.find_repository()
60
except errors.NoRepositoryPresent:
63
# Found a branch, so we must have found a repository
64
repository_to = br_to.repository
68
# The destination doesn't exist; create it.
69
# XXX: Refactor the create_prefix/no_create_prefix code into a
70
# common helper function
72
def make_directory(transport):
76
def redirected(transport, e, redirection_notice):
77
note(redirection_notice)
78
return transport._redirected_to(e.source, e.target)
81
to_transport = transport.do_catching_redirections(
82
make_directory, to_transport, redirected)
83
except errors.FileExists:
84
if not use_existing_dir:
85
raise errors.BzrCommandError("Target directory %s"
86
" already exists, but does not have a valid .bzr"
87
" directory. Supply --use-existing-dir to push"
88
" there anyway." % location)
89
except errors.NoSuchFile:
91
raise errors.BzrCommandError("Parent directory of %s"
93
"\nYou may supply --create-prefix to create all"
94
" leading parent directories."
96
builtins._create_prefix(to_transport)
97
except errors.TooManyRedirections:
98
raise errors.BzrCommandError("Too many redirections trying "
99
"to make %s." % location)
101
# Now the target directory exists, but doesn't have a .bzr
102
# directory. So we need to create it, along with any work to create
103
# all of the dependent branches, etc.
104
dir_to = br_from.bzrdir.clone_on_transport(to_transport,
105
revision_id=revision_id, stacked_on=stacked_on)
106
br_to = dir_to.open_branch()
107
# TODO: Some more useful message about what was copied
109
finally_stacked_on = br_to.get_stacked_on_url()
110
except (errors.UnstackableBranchFormat,
111
errors.UnstackableRepositoryFormat,
113
finally_stacked_on = None
114
if finally_stacked_on is not None:
115
note('Created new stacked branch referring to %s.' %
118
note('Created new branch.')
119
# We successfully created the target, remember it
120
if br_from.get_push_location() is None or remember:
121
br_from.set_push_location(br_to.base)
122
elif repository_to is None:
123
# we have a bzrdir but no branch or repository
124
# XXX: Figure out what to do other than complain.
125
raise errors.BzrCommandError("At %s you have a valid .bzr control"
126
" directory, but not a branch or repository. This is an"
127
" unsupported configuration. Please move the target directory"
128
" out of the way and try again."
131
# We have a repository but no branch, copy the revisions, and then
133
if stacked_on is not None:
134
warning("Ignoring request for a stacked branch as repository "
135
"already exists at the destination location.")
136
repository_to.fetch(br_from.repository, revision_id=revision_id)
137
br_to = br_from.clone(dir_to, revision_id=revision_id)
138
note('Created new branch.')
139
if br_from.get_push_location() is None or remember:
140
br_from.set_push_location(br_to.base)
141
else: # We have a valid to branch
142
if stacked_on is not None:
143
warning("Ignoring request for a stacked branch as branch "
144
"already exists at the destination location.")
145
# We were able to connect to the remote location, so remember it.
146
# (We don't need to successfully push because of possible divergence.)
147
if br_from.get_push_location() is None or remember:
148
br_from.set_push_location(br_to.base)
151
tree_to = dir_to.open_workingtree()
152
except errors.NotLocalUrl:
153
warning("This transport does not update the working "
154
"tree of: %s. See 'bzr help working-trees' for "
155
"more information." % br_to.base)
156
push_result = br_from.push(br_to, overwrite,
157
stop_revision=revision_id)
158
except errors.NoWorkingTree:
159
push_result = br_from.push(br_to, overwrite,
160
stop_revision=revision_id)
164
push_result = br_from.push(tree_to.branch, overwrite,
165
stop_revision=revision_id)
169
except errors.DivergedBranches:
170
raise errors.BzrCommandError('These branches have diverged.'
171
' Try using "merge" and then "push".')
172
if push_result is not None:
173
push_result.report(to_file)
174
old_revid = push_result.old_revid
175
old_revno = push_result.old_revno
177
old_revid = _mod_revision.NULL_REVISION
182
from bzrlib.log import show_branch_change
183
show_branch_change(br_to, to_file, old_revno, old_revid)