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# Copyright (C) 2008 Aaron Bentley
#
# 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
import os
from bzrlib.transform import TreeTransform
from bzrlib.tests import TestCaseWithTransport
try:
from bzrlib.tests.features import HardlinkFeature
except ImportError: # bzr < 2.5
from bzrlib.tests import HardlinkFeature
from bzrlib.plugins.bzrtools import command
from bzrlib.plugins.bzrtools.link_tree import link_tree
class TestLinkTreeBase(object):
_test_needs_features = [HardlinkFeature]
def setUp(self):
TestCaseWithTransport.setUp(self)
self.parent_tree = self.make_branch_and_tree('parent')
self.parent_tree.lock_write()
self.addCleanup(self.parent_tree.unlock)
self.build_tree_contents([('parent/foo', 'bar')])
self.parent_tree.add('foo', 'foo-id')
self.parent_tree.commit('added foo')
child_bzrdir = self.parent_tree.bzrdir.sprout('child')
self.child_tree = child_bzrdir.open_workingtree()
def hardlinked(self):
parent_stat = os.lstat(self.parent_tree.abspath('foo'))
child_stat = os.lstat(self.child_tree.abspath('foo'))
return parent_stat.st_ino == child_stat.st_ino
class TestLinkTree(TestLinkTreeBase, TestCaseWithTransport):
def test_link_fails_if_modified(self):
"""If the file to be linked has modified text, don't link."""
self.build_tree_contents([('child/foo', 'baz')])
link_tree(self.child_tree, self.parent_tree)
self.assertFalse(self.hardlinked())
def test_link_fails_if_execute_bit_changed(self):
"""If the file to be linked has modified execute bit, don't link."""
tt = TreeTransform(self.child_tree)
try:
trans_id = tt.trans_id_tree_file_id('foo-id')
tt.set_executability(True, trans_id)
tt.apply()
finally:
tt.finalize()
link_tree(self.child_tree, self.parent_tree)
self.assertFalse(self.hardlinked())
def test_link_succeeds_if_unmodified(self):
"""If the file to be linked is unmodified, link"""
link_tree(self.child_tree, self.parent_tree)
self.assertTrue(self.hardlinked())
class TestLinkTreeCommand(TestLinkTreeBase, TestCaseWithTransport):
def test_link_tree(self):
"""Ensure the command works as intended"""
command._testing = True
try:
os.chdir('child')
self.parent_tree.unlock()
self.run_bzr('link-tree ../parent')
self.assertTrue(self.hardlinked())
# want teh addCleanup to work properly
self.parent_tree.lock_write()
finally:
command._testing = False
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