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# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from bzrlib import (
workingtree,
)
from bzrlib.tests import TestCaseWithTransport
class TestRepairWorkingTree(TestCaseWithTransport):
def break_dirstate(self, tree, completely=False):
"""Write garbage into the dirstate file."""
# This test assumes that the format uses a DirState file, which we then
# manually corrupt. If we change the way to get at that dirstate file,
# then we can update how this is done
self.assertIsNot(None, getattr(tree, 'current_dirstate', None))
tree.lock_read()
try:
dirstate = tree.current_dirstate()
dirstate_path = dirstate._filename
self.assertPathExists(dirstate_path)
finally:
tree.unlock()
# We have to have the tree unlocked at this point, so we can safely
# mutate the state file on all platforms.
if completely:
f = open(dirstate_path, 'wb')
else:
f = open(dirstate_path, 'ab')
try:
f.write('garbage-at-end-of-file\n')
finally:
f.close()
def make_initial_tree(self):
tree = self.make_branch_and_tree('tree')
self.build_tree(['tree/foo', 'tree/dir/', 'tree/dir/bar'])
tree.add(['foo', 'dir', 'dir/bar'])
tree.commit('first')
return tree
def test_repair_refuses_uncorrupted(self):
tree = self.make_initial_tree()
# If the tree doesn't appear to be corrupt, we refuse, but prompt the
# user to let them know that:
# a) they may want to use 'bzr revert' instead of repair-workingtree
# b) they can use --force if they really want to do this
self.run_bzr_error(['The tree does not appear to be corrupt',
'"bzr revert"',
'--force'],
'repair-workingtree -d tree')
def test_repair_forced(self):
tree = self.make_initial_tree()
tree.rename_one('dir', 'alt_dir')
self.assertIsNot(None, tree.path2id('alt_dir'))
self.run_bzr('repair-workingtree -d tree --force')
# This requires the tree has reloaded the working state
self.assertIs(None, tree.path2id('alt_dir'))
self.assertPathExists('tree/alt_dir')
def test_repair_corrupted_dirstate(self):
tree = self.make_initial_tree()
self.break_dirstate(tree)
self.run_bzr('repair-workingtree -d tree')
tree = workingtree.WorkingTree.open('tree')
# At this point, check should be happy
tree.check_state()
def test_repair_naive_destroyed_fails(self):
tree = self.make_initial_tree()
self.break_dirstate(tree, completely=True)
self.run_bzr_error(['the header appears corrupt, try passing'],
'repair-workingtree -d tree')
def test_repair_destroyed_with_revs_passes(self):
tree = self.make_initial_tree()
self.break_dirstate(tree, completely=True)
self.run_bzr('repair-workingtree -d tree -r -1')
tree = workingtree.WorkingTree.open('tree')
# At this point, check should be happy
tree.check_state()
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