1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
# Copyright (C) 2006-2007, 2010-2011 Aaron Bentley <aaron@aaronbentley.com>
# Copyright (C) 2013 Aaron Bentley <aaron@aaronbentley.com>
# Copyright (C) 2007 Charlie Shepherd <masterdriverz@gentoo.org>
# Copyright (C) 2011 Canonical Ltd.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from shutil import rmtree
from bzrlib import (
bzrdir,
revision as _mod_revision,
)
from bzrlib.branch import Branch
from bzrlib.errors import BzrCommandError, NoWorkingTree, NotBranchError
from bzrlib import registry
from bzrlib.workingtree import WorkingTree
from errors import (NotCheckout, UncommittedCheckout, ParentMissingRevisions,
NoParent)
from bzrlib.plugins.bzrtools.bzrtools import read_locked
class AllowChanged(object):
@classmethod
def check_changed(klass, wt, remove_branch):
pass
class CheckChanged(object):
@classmethod
def check_changed(klass, wt, remove_branch):
delta = wt.changes_from(wt.basis_tree(), want_unchanged=False)
if delta.has_changed():
klass.handle_changed(wt, remove_branch)
class HaltOnChange(CheckChanged):
@staticmethod
def handle_changed(wt, remove_branch):
raise UncommittedCheckout()
class StoreChanges(CheckChanged):
@staticmethod
def handle_changed(wt, remove_branch):
from bzrlib.plugins.pipeline.pipeline import PipeManager
if remove_branch:
raise BzrCommandError('Cannot store changes in deleted branch.')
PipeManager.from_checkout(wt).store_uncommitted()
change_policy_registry = registry.Registry()
change_policy_registry.register('force', AllowChanged,
'Delete tree even if contents are modified.')
change_policy_registry.register('store', StoreChanges,
'Store changes in branch. (Requires'
' bzr-pipeline.)')
change_policy_registry.register('check', HaltOnChange,
'Stop if tree contents are modified.')
change_policy_registry.default_key = 'check'
def zap(path, remove_branch=False, policy=HaltOnChange):
try:
wt = bzrdir.BzrDir.open(path).open_workingtree(path,
recommend_upgrade=False)
except (NoWorkingTree, NotBranchError):
raise NotCheckout(path)
tree_base = wt.bzrdir.transport.base
branch = wt.branch
branch_base = branch.bzrdir.transport.base
if tree_base == branch_base:
raise NotCheckout(path)
policy.check_changed(wt, remove_branch)
if remove_branch:
parent_loc = branch.get_parent()
if parent_loc is None:
raise NoParent()
with read_locked(Branch.open(parent_loc)) as parent:
last_revision = _mod_revision.ensure_null(parent.last_revision())
if last_revision != _mod_revision.NULL_REVISION:
graph = parent.repository.get_graph()
heads = graph.heads([last_revision, branch.last_revision()])
if branch.last_revision() in heads:
raise ParentMissingRevisions(branch.get_parent())
rmtree(path)
if remove_branch:
t = branch.bzrdir.transport
while t.base != branch_base:
t = t.clone('..')
t = t.clone('..')
t.delete_tree('')
def test_suite():
import os
from unittest import makeSuite
from bzrlib.tests import TestCaseWithTransport
class PipelinePluginFeature:
@staticmethod
def available():
try:
import bzrlib.plugins.pipeline
except ImportError:
return False
else:
return True
class TestZap(TestCaseWithTransport):
def make_checkout(self):
wt = bzrdir.BzrDir.create_standalone_workingtree('source')
return wt.branch.create_checkout('checkout', lightweight=True)
def make_checkout2(self):
wt = self.make_checkout()
wt2 = wt.branch.bzrdir.sprout('source2').open_workingtree()
return wt2.branch.create_checkout('checkout2', lightweight=True)
def test_is_checkout(self):
self.assertRaises(NotCheckout, zap, '.')
wt = bzrdir.BzrDir.create_standalone_workingtree('.')
self.assertRaises(NotCheckout, zap, '.')
def test_zap_works(self):
self.make_checkout()
self.assertIs(True, os.path.exists('checkout'))
zap('checkout')
self.assertIs(False, os.path.exists('checkout'))
self.assertIs(True, os.path.exists('source'))
def test_zap_branch(self):
self.make_checkout2()
base = WorkingTree.open('checkout').branch.base
self.assertIs(True, os.path.exists('checkout'))
self.assertRaises(NoParent, zap, 'checkout', remove_branch=True)
self.assertIs(True, os.path.exists('checkout'))
self.assertIs(True, os.path.exists('source'))
zap('checkout2', remove_branch=True)
self.assertIs(False, os.path.exists('checkout2'))
self.assertIs(False, os.path.exists('source2'))
def test_checks_modified(self):
checkout = self.make_checkout()
os.mkdir('checkout/foo')
checkout.add('foo')
self.assertRaises(UncommittedCheckout, zap, 'checkout')
checkout.commit('commit changes to branch')
zap('checkout')
def make_modified_checkout(self):
checkout = self.make_checkout()
os.mkdir('checkout/foo')
checkout.add('foo')
return checkout
def test_allow_modified(self):
self.make_modified_checkout()
self.assertRaises(UncommittedCheckout, zap, 'checkout')
zap('checkout', policy=AllowChanged)
def test_store(self):
self.requireFeature(PipelinePluginFeature)
checkout = self.make_modified_checkout()
zap('checkout', policy=StoreChanges)
self.assertIn('stored-transform',
checkout.branch.bzrdir.transport.list_dir('branch'))
def test_store_remove_branch(self):
self.requireFeature(PipelinePluginFeature)
checkout = self.make_modified_checkout()
branch = self.make_branch('branch')
checkout.branch.set_parent(branch.base)
e = self.assertRaises(BzrCommandError, zap, 'checkout',
policy=StoreChanges, remove_branch=True)
self.assertEqual('Cannot store changes in deleted branch.', str(e))
def test_store_remove_branch_unmodified(self):
self.requireFeature(PipelinePluginFeature)
checkout = self.make_checkout()
branch = self.make_branch('branch')
checkout.branch.set_parent(branch.base)
zap('checkout', policy=StoreChanges, remove_branch=True)
def test_zap_branch_with_unique_revision(self):
parent = self.make_branch_and_tree('parent')
parent.commit('foo')
new_branch = self.make_branch('new')
new_branch.set_parent(parent.branch.base)
checkout = new_branch.create_checkout('checkout', lightweight=True)
checkout.commit('unique')
self.assertRaises(ParentMissingRevisions, zap, 'checkout',
remove_branch=True)
return makeSuite(TestZap)
|