# Copyright (C) 2006, 2007, 2009, 2010 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
import os
from bzrlib import merge,tests,transform,workingtree
class TestRevert(tests.TestCaseWithTransport):
"""Ensure that revert behaves as expected"""
def test_revert_merged_dir(self):
"""Reverting a merge that adds a directory deletes the directory"""
source_tree = self.make_branch_and_tree('source')
source_tree.commit('empty tree')
target_tree = source_tree.bzrdir.sprout('target').open_workingtree()
self.build_tree(['source/dir/', 'source/dir/contents'])
source_tree.add(['dir', 'dir/contents'], ['dir-id', 'contents-id'])
source_tree.commit('added dir')
target_tree.lock_write()
self.addCleanup(target_tree.unlock)
merge.merge_inner(target_tree.branch, source_tree.basis_tree(),
target_tree.basis_tree(), this_tree=target_tree)
self.failUnlessExists('target/dir')
self.failUnlessExists('target/dir/contents')
target_tree.revert()
self.failIfExists('target/dir/contents')
self.failIfExists('target/dir')
def test_revert_new(self):
"""Only locally-changed new files should be preserved when reverting
When a file isn't present in revert's target tree:
If a file hasn't been committed, revert should unversion it, but not
delete it.
If a file has local changes, revert should unversion it, but not
delete it.
If a file has no changes from the last commit, revert should delete it.
If a file has changes due to a merge, revert should delete it.
"""
tree = self.make_branch_and_tree('tree')
tree.commit('empty tree')
merge_target = tree.bzrdir.sprout('merge_target').open_workingtree()
self.build_tree(['tree/new_file'])
# newly-added files should not be deleted
tree.add('new_file')
basis_tree = tree.branch.repository.revision_tree(tree.last_revision())
tree.revert()
self.failUnlessExists('tree/new_file')
# unchanged files should be deleted
tree.add('new_file')
tree.commit('add new_file')
tree.revert(old_tree=basis_tree)
self.failIfExists('tree/new_file')
# files should be deleted if their changes came from merges
merge_target.merge_from_branch(tree.branch)
self.failUnlessExists('merge_target/new_file')
merge_target.revert()
self.failIfExists('merge_target/new_file')
# files should not be deleted if changed after a merge
merge_target.merge_from_branch(tree.branch)
self.failUnlessExists('merge_target/new_file')
self.build_tree_contents([('merge_target/new_file', 'new_contents')])
merge_target.revert()
self.failUnlessExists('merge_target/new_file')
def tree_with_executable(self):
tree = self.make_branch_and_tree('tree')
tt = transform.TreeTransform(tree)
tt.new_file('newfile', tt.root, 'helooo!', 'newfile-id', True)
tt.apply()
tree.lock_write()
try:
self.assertTrue(tree.is_executable('newfile-id'))
tree.commit('added newfile')
finally:
tree.unlock()
return tree
def test_preserve_execute(self):
tree = self.tree_with_executable()
tt = transform.TreeTransform(tree)
newfile = tt.trans_id_tree_file_id('newfile-id')
tt.delete_contents(newfile)
tt.create_file('Woooorld!', newfile)
tt.apply()
tree = workingtree.WorkingTree.open('tree')
tree.lock_write()
self.addCleanup(tree.unlock)
self.assertTrue(tree.is_executable('newfile-id'))
transform.revert(tree, tree.basis_tree(), None, backups=True)
self.assertEqual('helooo!', tree.get_file('newfile-id').read())
self.assertTrue(tree.is_executable('newfile-id'))
def test_revert_executable(self):
tree = self.tree_with_executable()
tt = transform.TreeTransform(tree)
newfile = tt.trans_id_tree_file_id('newfile-id')
tt.set_executability(False, newfile)
tt.apply()
tree.lock_write()
self.addCleanup(tree.unlock)
transform.revert(tree, tree.basis_tree(), None)
self.assertTrue(tree.is_executable('newfile-id'))
def test_revert_deletes_files_from_revert(self):
tree = self.make_branch_and_tree('.')
self.build_tree(['file'])
tree.add('file')
tree.commit('added file', rev_id='rev1')
os.unlink('file')
tree.commit('removed file')
self.failIfExists('file')
tree.revert(old_tree=tree.branch.repository.revision_tree('rev1'))
self.failUnlessExists('file')
tree.revert()
self.failIfExists('file')
self.assertEqual({}, tree.merge_modified())
def test_empty_deprecated(self):
tree = self.make_branch_and_tree('.')
self.build_tree(['file'])
tree.add('file')
self.callDeprecated(['Using [] to revert all files is deprecated'
' as of bzr 0.91. Please use None (the default) instead.'],
tree.revert, [])
self.assertIs(None, tree.path2id('file'))
def test_revert_file_in_deleted_dir(self):
tree = self.make_branch_and_tree('.')
self.build_tree(['dir/', 'dir/file1', 'dir/file2'])
tree.add(['dir', 'dir/file1', 'dir/file2'],
['dir-id', 'file1-id', 'file2-id'])
tree.commit("Added files")
os.unlink('dir/file1')
os.unlink('dir/file2')
os.rmdir('dir')
tree.remove(['dir/', 'dir/file1', 'dir/file2'])
tree.revert(['dir/file1'])
self.failUnlessExists('dir/file1')
self.failIfExists('dir/file2')
self.assertEqual('dir-id', tree.path2id('dir'))
def test_revert_root_id_change(self):
tree = self.make_branch_and_tree('.')
tree.set_root_id('initial-root-id')
self.build_tree(['file1'])
tree.add(['file1'])
tree.commit('first')
tree.set_root_id('temp-root-id')
self.assertEqual('temp-root-id', tree.get_root_id())
tree.revert()
self.assertEqual('initial-root-id', tree.get_root_id())
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