~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2010, 2011, 2016 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

"""Test symlink support.

"""

import os

from bzrlib import (

    osutils,

    tests,

    workingtree,

    )

from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree

from bzrlib.tests import (

    features,

    )

class TestSmartAddTree(TestCaseWithWorkingTree):

    # See eg <https://bugs.launchpad.net/bzr/+bug/192859>

    _test_needs_features = [features.SymlinkFeature]

    def test_smart_add_symlink(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('tree/link@', 'target'),

            ])

        tree.smart_add(['tree/link'])

        self.assertIsNot(None, tree.path2id('link'))

        self.assertIs(None, tree.path2id('target'))

        self.assertEqual('symlink',

            tree.kind(tree.path2id('link')))

    def test_smart_add_symlink_pointing_outside(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('tree/link@', '../../../../target'),

            ])

        tree.smart_add(['tree/link'])

        self.assertIsNot(None, tree.path2id('link'))

        self.assertIs(None, tree.path2id('target'))

        self.assertEqual('symlink',

            tree.kind(tree.path2id('link')))

    def test_add_file_under_symlink(self):

        # similar to 

        # https://bugs.launchpad.net/bzr/+bug/192859/comments/3

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('tree/link@', 'dir'),

            ('tree/dir/',),

            ('tree/dir/file', 'content'),

            ])

        self.assertEqual(

            tree.smart_add(['tree/link/file']),

            ([u'dir', u'dir/file'], {}))

        # should add the actual parent directory, not the apparent parent

        # (which is actually a symlink)

        self.assertTrue(tree.path2id('dir/file'))

        self.assertTrue(tree.path2id('dir'))

        self.assertIs(None, tree.path2id('link'))

        self.assertIs(None, tree.path2id('link/file'))

class TestKindChanges(TestCaseWithWorkingTree):

    _test_needs_features = [features.SymlinkFeature]

    def test_symlink_changes_to_dir(self):

        # <https://bugs.launchpad.net/bzr/+bug/192859>:

        # we had some past problems with the workingtree remembering for too

        # long what kind of object was at a particular name; we really

        # shouldn't do that.  Operating on the dirstate through passing

        # inventory deltas rather than mutating the inventory largely avoids

        # that.

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('tree/a@', 'target')])

        tree.smart_add(['tree/a'])

        tree.commit('add symlink')

        os.unlink('tree/a')

        self.build_tree_contents([

            ('tree/a/',),

            ('tree/a/f', 'content'),

            ])

        tree.smart_add(['tree/a/f'])

        tree.commit('change to dir')

        tree.lock_read()

        self.addCleanup(tree.unlock)

        self.assertEqual([], list(tree.iter_changes(tree.basis_tree())))

        if tree._format.supports_versioned_directories:

            self.assertEqual(

                ['a', 'a/f'], sorted(info[0] for info in tree.list_files()))

        else:

            self.assertEqual([], list(tree.list_files()))

    def test_dir_changes_to_symlink(self):

        # <https://bugs.launchpad.net/bzr/+bug/192859>:

        # we had some past problems with the workingtree remembering for too

        # long what kind of object was at a particular name; we really

        # shouldn't do that.  Operating on the dirstate through passing

        # inventory deltas rather than mutating the inventory largely avoids

        # that.

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('tree/a/',),

            ('tree/a/file', 'content'),

            ])

        tree.smart_add(['tree/a'])

        tree.commit('add dir')

        osutils.rmtree('tree/a')

        self.build_tree_contents([

            ('tree/a@', 'target'),

            ])

        tree.commit('change to symlink')

class TestOpenTree(TestCaseWithWorkingTree):

    _test_needs_features = [features.SymlinkFeature]

    def test_open_containing_through_symlink(self):

        self.make_test_tree()

        self.check_open_containing('link/content', 'tree', 'content')

        self.check_open_containing('link/sublink', 'tree', 'sublink')

        # this next one is a bit debatable, but arguably it's better that

        # open_containing is only concerned with opening the tree 

        # and then you can deal with symlinks along the way if you want

        self.check_open_containing('link/sublink/subcontent', 'tree',

            'sublink/subcontent')

    def check_open_containing(self, to_open, expected_tree_name,

        expected_relpath):

        wt, relpath = workingtree.WorkingTree.open_containing(to_open)

        self.assertEqual(relpath, expected_relpath)

        self.assertEndsWith(wt.basedir, expected_tree_name)

    def test_tree_files(self):

        # not strictly a WorkingTree method, but it should be

        # probably the root cause for

        # <https://bugs.launchpad.net/bzr/+bug/128562>

        self.make_test_tree()

        self.check_tree_files(['tree/outerlink'],

            'tree', ['outerlink'])

        self.check_tree_files(['link/outerlink'],

            'tree', ['outerlink'])

        self.check_tree_files(['link/sublink/subcontent'],

            'tree', ['subdir/subcontent'])

    def check_tree_files(self, to_open, expected_tree, expect_paths):

        tree, relpaths = workingtree.WorkingTree.open_containing_paths(to_open)

        self.assertEndsWith(tree.basedir, expected_tree)

        self.assertEqual(expect_paths, relpaths)

    def make_test_tree(self):

        tree = self.make_branch_and_tree('tree')

        self.build_tree_contents([

            ('link@', 'tree'),

            ('tree/outerlink@', '/not/there'),

            ('tree/content', 'hello'),

            ('tree/sublink@', 'subdir'),

            ('tree/subdir/',),

            ('tree/subdir/subcontent', 'subcontent stuff')

            ])