1
# Copyright (C) 2007, 2009, 2010 Canonical Ltd.
1
# Copyright (C) 2007, 2009-2012 Canonical Ltd.
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
from __future__ import absolute_import
17
19
# Original author: David Allouche
19
21
from bzrlib import errors, merge, revision
20
22
from bzrlib.branch import Branch
23
from bzrlib.i18n import gettext
21
24
from bzrlib.trace import note
24
26
def _run_post_switch_hooks(control_dir, to_branch, force, revision_id):
25
27
from bzrlib.branch import SwitchHookParams
26
28
hooks = Branch.hooks['post_switch']
33
35
def switch(control_dir, to_branch, force=False, quiet=False, revision_id=None):
34
36
"""Switch the branch associated with a checkout.
36
:param control_dir: BzrDir of the checkout to change
38
:param control_dir: ControlDir of the checkout to change
37
39
:param to_branch: branch that the checkout is to reference
38
40
:param force: skip the check for local commits in a heavy checkout
39
41
:param revision_id: revision ID to switch to.
51
53
def _check_pending_merges(control, force=False):
52
54
"""Check that there are no outstanding pending merges before switching.
54
:param control: BzrDir of the branch to check
56
:param control: ControlDir of the branch to check
57
59
tree = control.open_workingtree()
64
66
# XXX: Should the tree be locked for get_parent_ids?
65
67
existing_pending_merges = tree.get_parent_ids()[1:]
66
68
if len(existing_pending_merges) > 0:
67
raise errors.BzrCommandError('Pending merges must be '
68
'committed or reverted before using switch.')
69
raise errors.BzrCommandError(gettext('Pending merges must be '
70
'committed or reverted before using switch.'))
71
73
def _set_branch_location(control, to_branch, force=False):
72
74
"""Set location value of a branch reference.
74
:param control: BzrDir of the checkout to change
76
:param control: ControlDir of the checkout to change
75
77
:param to_branch: branch that the checkout is to reference
76
78
:param force: skip the check for local commits in a heavy checkout
78
80
branch_format = control.find_branch_format()
79
81
if branch_format.get_reference(control) is not None:
80
82
# Lightweight checkout: update the branch reference
81
branch_format.set_reference(control, to_branch)
83
branch_format.set_reference(control, None, to_branch)
83
85
b = control.open_branch()
84
86
bound_branch = b.get_bound_location()
90
92
possible_transports = []
92
94
if not force and _any_local_commits(b, possible_transports):
93
raise errors.BzrCommandError(
95
raise errors.BzrCommandError(gettext(
94
96
'Cannot switch as local commits found in the checkout. '
95
97
'Commit these to the bound branch or use --force to '
97
99
except errors.BoundBranchConnectionFailure, e:
98
raise errors.BzrCommandError(
100
raise errors.BzrCommandError(gettext(
99
101
'Unable to connect to current master branch %(target)s: '
100
'%(error)s To switch anyway, use --force.' %
102
'%(error)s To switch anyway, use --force.') %
102
b.set_bound_location(None)
103
b.pull(to_branch, overwrite=True,
104
possible_transports=possible_transports)
105
b.set_bound_location(to_branch.base)
106
b.set_bound_location(None)
107
b.pull(to_branch, overwrite=True,
108
possible_transports=possible_transports)
109
b.set_bound_location(to_branch.base)
110
b.set_parent(b.get_master_branch().get_parent())
107
raise errors.BzrCommandError('Cannot switch a branch, '
114
raise errors.BzrCommandError(gettext('Cannot switch a branch, '
111
118
def _any_local_commits(this_branch, possible_transports):
140
147
revision_id = to_branch.last_revision()
141
148
if tree.last_revision() == revision_id:
143
note("Tree is up to date at revision %d.", to_branch.revno())
150
note(gettext("Tree is up to date at revision %d."), to_branch.revno())
145
152
base_tree = source_repository.revision_tree(tree.last_revision())
146
153
merge.Merge3Merger(tree, tree, base_tree, to_branch.repository.revision_tree(revision_id))
147
154
tree.set_last_revision(to_branch.last_revision())
149
note('Updated to revision %d.' % to_branch.revno())
156
note(gettext('Updated to revision %d.') % to_branch.revno())