/brz/remove-bazaar

# Copyright (C) 2005-2012, 2016 Canonical Ltd

# Authors:  Robert Collins <robert.collins@canonical.com>

#

# 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 io import BytesIO

import os

from .. import (

    conflicts,

    errors,

    symbol_versioning,

    trace,

    transport,

    workingtree,

    )

from ..bzr import (

    bzrdir,

    conflicts as _mod_bzr_conflicts,

    workingtree as bzrworkingtree,

    workingtree_3,

    workingtree_4,

    )

from ..lock import write_locked

from ..lockdir import LockDir

from . import TestCase, TestCaseWithTransport, TestSkipped

from ..tree import (

    TreeEntry,

    TreeDirectory,

    TreeFile,

    TreeLink,

    )

from .features import SymlinkFeature

class TestTreeDirectory(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeDirectory().kind_character(), '/')

class TestTreeEntry(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeEntry().kind_character(), '???')

class TestTreeFile(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeFile().kind_character(), '')

class TestTreeLink(TestCaseWithTransport):

    def test_kind_character(self):

        self.assertEqual(TreeLink().kind_character(), '')

class TestDefaultFormat(TestCaseWithTransport):

    def test_get_set_default_format(self):

        old_format = workingtree.format_registry.get_default()

        # default is 6

        self.assertTrue(isinstance(

            old_format, workingtree_4.WorkingTreeFormat6))

        workingtree.format_registry.set_default(SampleTreeFormat())

        try:

            # the default branch format is used by the meta dir format

            # which is not the default bzrdir format at this point

            dir = bzrdir.BzrDirMetaFormat1().initialize('.')

            dir.create_repository()

            dir.create_branch()

            result = dir.create_workingtree()

            self.assertEqual(result, 'A tree')

        finally:

            workingtree.format_registry.set_default(old_format)

        self.assertEqual(old_format, workingtree.format_registry.get_default())

    def test_from_string(self):

        self.assertIsInstance(

            SampleTreeFormat.from_string(b"Sample tree format."),

            SampleTreeFormat)

        self.assertRaises(

            AssertionError, SampleTreeFormat.from_string,

            b"Different format string.")

    def test_get_set_default_format_by_key(self):

        old_format = workingtree.format_registry.get_default()

        # default is 6

        format = SampleTreeFormat()

        workingtree.format_registry.register(format)

        self.addCleanup(workingtree.format_registry.remove, format)

        self.assertTrue(isinstance(

            old_format, workingtree_4.WorkingTreeFormat6))

        workingtree.format_registry.set_default_key(format.get_format_string())

        try:

            # the default branch format is used by the meta dir format

            # which is not the default bzrdir format at this point

            dir = bzrdir.BzrDirMetaFormat1().initialize('.')

            dir.create_repository()

            dir.create_branch()

            result = dir.create_workingtree()

            self.assertEqual(result, 'A tree')

        finally:

            workingtree.format_registry.set_default_key(

                old_format.get_format_string())

        self.assertEqual(old_format, workingtree.format_registry.get_default())

    def test_open(self):

        tree = self.make_branch_and_tree('.')

        open_direct = workingtree.WorkingTree.open('.')

        self.assertEqual(tree.basedir, open_direct.basedir)

        open_no_args = workingtree.WorkingTree.open()

        self.assertEqual(tree.basedir, open_no_args.basedir)

    def test_open_containing(self):

        tree = self.make_branch_and_tree('.')

        open_direct, relpath = workingtree.WorkingTree.open_containing('.')

        self.assertEqual(tree.basedir, open_direct.basedir)

        self.assertEqual('', relpath)

        open_no_args, relpath = workingtree.WorkingTree.open_containing()

        self.assertEqual(tree.basedir, open_no_args.basedir)

        self.assertEqual('', relpath)

        open_subdir, relpath = workingtree.WorkingTree.open_containing(

            'subdir')

        self.assertEqual(tree.basedir, open_subdir.basedir)

        self.assertEqual('subdir', relpath)

class SampleTreeFormat(bzrworkingtree.WorkingTreeFormatMetaDir):

    """A sample format

    this format is initializable, unsupported to aid in testing the

    open and open_downlevel routines.

    """

    @classmethod

    def get_format_string(cls):

        """See WorkingTreeFormat.get_format_string()."""

        return b"Sample tree format."

    def initialize(self, a_controldir, revision_id=None, from_branch=None,

                   accelerator_tree=None, hardlink=False):

        """Sample branches cannot be created."""

        t = a_controldir.get_workingtree_transport(self)

        t.put_bytes('format', self.get_format_string())

        return 'A tree'

    def is_supported(self):

        return False

    def open(self, transport, _found=False):

        return "opened tree."

class SampleExtraTreeFormat(workingtree.WorkingTreeFormat):

    """A sample format that does not support use in a metadir.

    """

    def get_format_string(self):

        # Not usable in a metadir, so no format string

        return None

    def initialize(self, a_controldir, revision_id=None, from_branch=None,

                   accelerator_tree=None, hardlink=False):

        raise NotImplementedError(self.initialize)

    def is_supported(self):

        return False

    def open(self, transport, _found=False):

        raise NotImplementedError(self.open)

class TestWorkingTreeFormat(TestCaseWithTransport):

    """Tests for the WorkingTreeFormat facility."""

    def test_find_format_string(self):

        # is the right format object found for a working tree?

        branch = self.make_branch('branch')

        self.assertRaises(

            errors.NoWorkingTree,

            bzrworkingtree.WorkingTreeFormatMetaDir.find_format_string,

            branch.controldir)

        transport = branch.controldir.get_workingtree_transport(None)

        transport.mkdir('.')

        transport.put_bytes("format", b"some format name")

        # The format does not have to be known by Bazaar,

        # find_format_string just retrieves the name

        self.assertEqual(

            b"some format name",

            bzrworkingtree.WorkingTreeFormatMetaDir.find_format_string(

                branch.controldir))

    def test_find_format(self):

        # is the right format object found for a working tree?

        # create a branch with a few known format objects.

        self.build_tree(["foo/", "bar/"])

        def check_format(format, url):

            dir = format._matchingcontroldir.initialize(url)

            dir.create_repository()

            dir.create_branch()

            format.initialize(dir)

            found_format = bzrworkingtree.WorkingTreeFormatMetaDir.find_format(

                dir)

            self.assertIsInstance(found_format, format.__class__)

        check_format(workingtree_3.WorkingTreeFormat3(), "bar")

    def test_find_format_no_tree(self):

        dir = bzrdir.BzrDirMetaFormat1().initialize('.')

        self.assertRaises(errors.NoWorkingTree,

                          bzrworkingtree.WorkingTreeFormatMetaDir.find_format,

                          dir)

    def test_find_format_unknown_format(self):

        dir = bzrdir.BzrDirMetaFormat1().initialize('.')

        dir.create_repository()

        dir.create_branch()

        SampleTreeFormat().initialize(dir)

        self.assertRaises(errors.UnknownFormatError,

                          bzrworkingtree.WorkingTreeFormatMetaDir.find_format,

                          dir)

    def test_find_format_with_features(self):

        tree = self.make_branch_and_tree('.', format='2a')

        tree.update_feature_flags({b"name": b"necessity"})

        found_format = bzrworkingtree.WorkingTreeFormatMetaDir.find_format(

            tree.controldir)

        self.assertIsInstance(found_format, workingtree.WorkingTreeFormat)

        self.assertEqual(found_format.features.get(b"name"), b"necessity")

        self.assertRaises(

            bzrdir.MissingFeature, found_format.check_support_status, True)

        self.addCleanup(

            bzrworkingtree.WorkingTreeFormatMetaDir.unregister_feature,

            b"name")

        bzrworkingtree.WorkingTreeFormatMetaDir.register_feature(b"name")

        found_format.check_support_status(True)

class TestWorkingTreeIterEntriesByDir_wSubtrees(TestCaseWithTransport):

    def make_simple_tree(self):

        tree = self.make_branch_and_tree('tree', format='development-subtree')

        self.build_tree(['tree/a/', 'tree/a/b/', 'tree/a/b/c'])

        tree.set_root_id(b'root-id')

        tree.add(['a', 'a/b', 'a/b/c'], [b'a-id', b'b-id', b'c-id'])

        tree.commit('initial')

        return tree

    def test_just_directory(self):

        tree = self.make_simple_tree()

        self.assertEqual([('directory', b'root-id'),

                          ('directory', b'a-id'),

                          ('directory', b'b-id'),

                          ('file', b'c-id')],

                         [(ie.kind, ie.file_id)

                          for path, ie in tree.iter_entries_by_dir()])

        self.make_branch_and_tree('tree/a/b')

        self.assertEqual([('tree-reference', b'b-id')],

                         [(ie.kind, ie.file_id)

                          for path, ie in tree.iter_entries_by_dir(

                              specific_files=['a/b'])])

    def test_direct_subtree(self):

        tree = self.make_simple_tree()

        self.make_branch_and_tree('tree/a/b')

        self.assertEqual([('directory', b'root-id'),

                          ('directory', b'a-id'),

                          ('tree-reference', b'b-id')],

                         [(ie.kind, ie.file_id)

                          for path, ie in tree.iter_entries_by_dir()])

    def test_indirect_subtree(self):

        tree = self.make_simple_tree()

        self.make_branch_and_tree('tree/a')

        self.assertEqual([('directory', b'root-id'),

                          ('tree-reference', b'a-id')],

                         [(ie.kind, ie.file_id)

                          for path, ie in tree.iter_entries_by_dir()])

class TestWorkingTreeFormatRegistry(TestCase):

    def setUp(self):

        super(TestWorkingTreeFormatRegistry, self).setUp()

        self.registry = workingtree.WorkingTreeFormatRegistry()

    def test_register_unregister_format(self):

        format = SampleTreeFormat()

        self.registry.register(format)

        self.assertEqual(format, self.registry.get(b"Sample tree format."))

        self.registry.remove(format)

        self.assertRaises(KeyError, self.registry.get, b"Sample tree format.")

    def test_get_all(self):

        format = SampleTreeFormat()

        self.assertEqual([], self.registry._get_all())

        self.registry.register(format)

        self.assertEqual([format], self.registry._get_all())

    def test_register_extra(self):

        format = SampleExtraTreeFormat()

        self.assertEqual([], self.registry._get_all())

        self.registry.register_extra(format)

        self.assertEqual([format], self.registry._get_all())

    def test_register_extra_lazy(self):

        self.assertEqual([], self.registry._get_all())

        self.registry.register_extra_lazy("breezy.tests.test_workingtree",

                                          "SampleExtraTreeFormat")

        formats = self.registry._get_all()

        self.assertEqual(1, len(formats))

        self.assertIsInstance(formats[0], SampleExtraTreeFormat)

class TestWorkingTreeFormat3(TestCaseWithTransport):

    """Tests specific to WorkingTreeFormat3."""

    def test_disk_layout(self):

        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())

        control.create_repository()

        control.create_branch()

        workingtree_3.WorkingTreeFormat3().initialize(control)

        # we want:

        # format 'Bazaar-NG Working Tree format 3'

        # inventory = blank inventory

        # pending-merges = ''

        # stat-cache = ??

        # no inventory.basis yet

        t = control.get_workingtree_transport(None)

        self.assertEqualDiff(b'Bazaar-NG Working Tree format 3',

                             t.get('format').read())

        self.assertEqualDiff(t.get('inventory').read(),

                             b'<inventory format="5">\n'

                             b'</inventory>\n',

                             )

        self.assertEqualDiff(b'### bzr hashcache v5\n',

                             t.get('stat-cache').read())

        self.assertFalse(t.has('inventory.basis'))

        # no last-revision file means 'None' or 'NULLREVISION'

        self.assertFalse(t.has('last-revision'))

        # TODO RBC 20060210 do a commit, check the inventory.basis is created

        # correctly and last-revision file becomes present.

    def test_uses_lockdir(self):

        """WorkingTreeFormat3 uses its own LockDir:

            - lock is a directory

            - when the WorkingTree is locked, LockDir can see that

        """

        t = self.get_transport()

        url = self.get_url()

        dir = bzrdir.BzrDirMetaFormat1().initialize(url)

        dir.create_repository()

        dir.create_branch()

        try:

            tree = workingtree_3.WorkingTreeFormat3().initialize(dir)

        except errors.NotLocalUrl:

            raise TestSkipped('Not a local URL')

        self.assertIsDirectory('.bzr', t)

        self.assertIsDirectory('.bzr/checkout', t)

        self.assertIsDirectory('.bzr/checkout/lock', t)

        our_lock = LockDir(t, '.bzr/checkout/lock')

        self.assertEqual(our_lock.peek(), None)

        with tree.lock_write():

            self.assertTrue(our_lock.peek())

        self.assertEqual(our_lock.peek(), None)

    def test_missing_pending_merges(self):

        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())

        control.create_repository()

        control.create_branch()

        tree = workingtree_3.WorkingTreeFormat3().initialize(control)

        tree._transport.delete("pending-merges")

        self.assertEqual([], tree.get_parent_ids())

class TestRevert(TestCaseWithTransport):

    def test_revert_conflicts_recursive(self):

        this_tree = self.make_branch_and_tree('this-tree')

        self.build_tree_contents([('this-tree/foo/',),

                                  ('this-tree/foo/bar', b'bar')])

        this_tree.add(['foo', 'foo/bar'])

        this_tree.commit('created foo/bar')

        other_tree = this_tree.controldir.sprout(

            'other-tree').open_workingtree()

        self.build_tree_contents([('other-tree/foo/bar', b'baz')])

        other_tree.commit('changed bar')

        self.build_tree_contents([('this-tree/foo/bar', b'qux')])

        this_tree.commit('changed qux')

        this_tree.merge_from_branch(other_tree.branch)

        self.assertEqual(1, len(this_tree.conflicts()))

        this_tree.revert(['foo'])

        self.assertEqual(0, len(this_tree.conflicts()))

class TestAutoResolve(TestCaseWithTransport):

    def _auto_resolve(self, tree):

        """Call auto_resolve on tree expecting deprecation"""

        return self.applyDeprecated(

            symbol_versioning.deprecated_in((3, 0, 1)),

            tree.auto_resolve,)

    def test_auto_resolve(self):

        base = self.make_branch_and_tree('base')

        self.build_tree_contents([('base/hello', b'Hello')])

        base.add('hello', b'hello_id')

        base.commit('Hello')

        other = base.controldir.sprout('other').open_workingtree()

        self.build_tree_contents([('other/hello', b'hELLO')])

        other.commit('Case switch')

        this = base.controldir.sprout('this').open_workingtree()

        self.assertPathExists('this/hello')

        self.build_tree_contents([('this/hello', b'Hello World')])

        this.commit('Add World')

        this.merge_from_branch(other.branch)

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         this.conflicts())

        self._auto_resolve(this)

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         this.conflicts())

        self.build_tree_contents([('this/hello', '<<<<<<<')])

        self._auto_resolve(this)

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         this.conflicts())

        self.build_tree_contents([('this/hello', '=======')])

        self._auto_resolve(this)

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         this.conflicts())

        self.build_tree_contents([('this/hello', '\n>>>>>>>')])

        remaining, resolved = self._auto_resolve(this)

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         this.conflicts())

        self.assertEqual([], resolved)

        self.build_tree_contents([('this/hello', b'hELLO wORLD')])

        remaining, resolved = self._auto_resolve(this)

        self.assertEqual([], this.conflicts())

        self.assertEqual([_mod_bzr_conflicts.TextConflict('hello', b'hello_id')],

                         resolved)

        self.assertPathDoesNotExist('this/hello.BASE')

    def test_unsupported_symlink_auto_resolve(self):

        self.requireFeature(SymlinkFeature)

        base = self.make_branch_and_tree('base')

        self.build_tree_contents([('base/hello', 'Hello')])

        base.add('hello', b'hello_id')

        base.commit('commit 0')

        other = base.controldir.sprout('other').open_workingtree()

        self.build_tree_contents([('other/hello', 'Hello')])

        os.symlink('other/hello', 'other/foo')

        other.add('foo', b'foo_id')

        other.commit('commit symlink')

        this = base.controldir.sprout('this').open_workingtree()

        self.assertPathExists('this/hello')

        self.build_tree_contents([('this/hello', 'Hello')])

        this.commit('commit 2')

        log = BytesIO()

        trace.push_log_file(log)

        os_symlink = getattr(os, 'symlink', None)

        os.symlink = None

        try:

            this.merge_from_branch(other.branch)

        finally:

            if os_symlink:

                os.symlink = os_symlink

        self.assertContainsRe(

            log.getvalue(),

            b'Unable to create symlink "foo" on this filesystem')

    def test_auto_resolve_dir(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree(['tree/hello/'])

        tree.add('hello', b'hello-id')

        file_conflict = _mod_bzr_conflicts.TextConflict('hello', b'hello-id')

        tree.set_conflicts([file_conflict])

        remaining, resolved = self._auto_resolve(tree)

        self.assertEqual(

            remaining,

            conflicts.ConflictList([_mod_bzr_conflicts.TextConflict(u'hello', 'hello-id')]))

        self.assertEqual(resolved, [])

    def test_auto_resolve_missing(self):

        tree = self.make_branch_and_tree('tree')

        file_conflict = _mod_bzr_conflicts.TextConflict('hello', b'hello-id')

        tree.set_conflicts([file_conflict])

        remaining, resolved = self._auto_resolve(tree)

        self.assertEqual(remaining, [])

        self.assertEqual(

            resolved,

            conflicts.ConflictList([_mod_bzr_conflicts.TextConflict(u'hello', 'hello-id')]))

class TestStoredUncommitted(TestCaseWithTransport):

    def store_uncommitted(self):

        tree = self.make_branch_and_tree('tree')

        tree.commit('get root in there')

        self.build_tree_contents([('tree/file', b'content')])

        tree.add('file', b'file-id')

        tree.store_uncommitted()

        return tree

    def test_store_uncommitted(self):

        self.store_uncommitted()

        self.assertPathDoesNotExist('tree/file')

    def test_store_uncommitted_no_change(self):

        tree = self.make_branch_and_tree('tree')

        tree.commit('get root in there')

        tree.store_uncommitted()

        self.assertIs(None, tree.branch.get_unshelver(tree))

    def test_restore_uncommitted(self):

        with write_locked(self.store_uncommitted()) as tree:

            tree.restore_uncommitted()

            self.assertPathExists('tree/file')

            self.assertIs(None, tree.branch.get_unshelver(tree))

    def test_restore_uncommitted_none(self):

        tree = self.make_branch_and_tree('tree')

        tree.restore_uncommitted()