~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2007 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

"""Tests for fetch between repositories of the same type."""

from bzrlib import (

    bzrdir,

    errors,

    gpg,

    repository,

    )

from bzrlib.tests import TestSkipped

from bzrlib.tests.per_repository import TestCaseWithRepository

from bzrlib.transport import get_transport

class TestFetchSameRepository(TestCaseWithRepository):

    def test_fetch(self):

        # smoke test fetch to ensure that the convenience function works.

        # it is defined as a convenience function with the underlying

        # functionality provided by an InterRepository

        tree_a = self.make_branch_and_tree('a')

        self.build_tree(['a/foo'])

        tree_a.add('foo', 'file1')

        tree_a.commit('rev1', rev_id='rev1')

        # fetch with a default limit (grab everything)

        repo = self.make_repository('b')

        if (tree_a.branch.repository.supports_rich_root() and not

            repo.supports_rich_root()):

            raise TestSkipped('Cannot fetch from model2 to model1')

        repo.fetch(tree_a.branch.repository,

                   revision_id=None)

    def test_fetch_fails_in_write_group(self):

        # fetch() manages a write group itself, fetching within one isn't safe.

        repo = self.make_repository('a')

        repo.lock_write()

        self.addCleanup(repo.unlock)

        repo.start_write_group()

        self.addCleanup(repo.abort_write_group)

        # Don't need a specific class - not expecting flow control based on

        # this.

        self.assertRaises(errors.BzrError, repo.fetch, repo)

    def test_fetch_to_knit3(self):

        # create a repository of the sort we are testing.

        tree_a = self.make_branch_and_tree('a')

        self.build_tree(['a/foo'])

        tree_a.add('foo', 'file1')

        tree_a.commit('rev1', rev_id='rev1')

        # create a knit-3 based format to fetch into

        f = bzrdir.format_registry.make_bzrdir('dirstate-with-subtree')

        try:

            format = tree_a.branch.repository._format

            format.check_conversion_target(f.repository_format)

            # if we cannot convert data to knit3, skip the test.

        except errors.BadConversionTarget, e:

            raise TestSkipped(str(e))

        self.get_transport().mkdir('b')

        b_bzrdir = f.initialize(self.get_url('b'))

        knit3_repo = b_bzrdir.create_repository()

        # fetch with a default limit (grab everything)

        knit3_repo.fetch(tree_a.branch.repository, revision_id=None)

        # Reopen to avoid any in-memory caching - ensure its reading from

        # disk.

        knit3_repo = b_bzrdir.open_repository()

        rev1_tree = knit3_repo.revision_tree('rev1')

        rev1_tree.lock_read()

        try:

            lines = rev1_tree.get_file_lines(rev1_tree.get_root_id())

        finally:

            rev1_tree.unlock()

        self.assertEqual([], lines)

        b_branch = b_bzrdir.create_branch()

        b_branch.pull(tree_a.branch)

        try:

            tree_b = b_bzrdir.create_workingtree()

        except errors.NotLocalUrl:

            try:

                tree_b = b_branch.create_checkout('b', lightweight=True)

            except errors.NotLocalUrl:

                raise TestSkipped("cannot make working tree with transport %r"

                              % b_bzrdir.transport)

        tree_b.commit('no change', rev_id='rev2')

        rev2_tree = knit3_repo.revision_tree('rev2')

        self.assertEqual('rev1', rev2_tree.inventory.root.revision)

    def test_fetch_all_from_self(self):

        tree = self.make_branch_and_tree('.')

        rev_id = tree.commit('one')

        # This needs to be a new copy of the repository, if this changes, the

        # test needs to be rewritten

        repo = tree.branch.repository.bzrdir.open_repository()

        # This fetch should be a no-op see bug #158333

        tree.branch.repository.fetch(repo, None)

    def test_fetch_from_self(self):

        tree = self.make_branch_and_tree('.')

        rev_id = tree.commit('one')

        repo = tree.branch.repository.bzrdir.open_repository()

        # This fetch should be a no-op see bug #158333

        tree.branch.repository.fetch(repo, rev_id)

    def test_fetch_missing_from_self(self):

        tree = self.make_branch_and_tree('.')

        rev_id = tree.commit('one')

        # Even though the fetch() is a NO-OP it should assert the revision id

        # is present

        repo = tree.branch.repository.bzrdir.open_repository()

        self.assertRaises(errors.NoSuchRevision, tree.branch.repository.fetch,

                          repo, 'no-such-revision')

    def makeARepoWithSignatures(self):

        wt = self.make_branch_and_tree('a-repo-with-sigs')

        wt.commit('rev1', allow_pointless=True, rev_id='rev1')

        repo = wt.branch.repository

        repo.lock_write()

        repo.start_write_group()

        repo.sign_revision('rev1', gpg.LoopbackGPGStrategy(None))

        repo.commit_write_group()

        repo.unlock()

        return repo

    def test_fetch_copies_signatures(self):

        source_repo = self.makeARepoWithSignatures()

        target_repo = self.make_repository('target')

        target_repo.fetch(source_repo, revision_id=None)

        self.assertEqual(

            source_repo.get_signature_text('rev1'),

            target_repo.get_signature_text('rev1'))

    def make_repository_with_one_revision(self):

        wt = self.make_branch_and_tree('source')

        wt.commit('rev1', allow_pointless=True, rev_id='rev1')

        return wt.branch.repository

    def test_fetch_revision_already_exists(self):

        # Make a repository with one revision.

        source_repo = self.make_repository_with_one_revision()

        # Fetch that revision into a second repository.

        target_repo = self.make_repository('target')

        target_repo.fetch(source_repo, revision_id='rev1')

        # Now fetch again; there will be nothing to do.  This should work

        # without causing any errors.

        target_repo.fetch(source_repo, revision_id='rev1')

    def test_fetch_all_same_revisions_twice(self):

        # Blind-fetching all the same revisions twice should succeed and be a

        # no-op the second time.

        repo = self.make_repository('repo')

        tree = self.make_branch_and_tree('tree')

        revision_id = tree.commit('test')

        repo.fetch(tree.branch.repository)

        repo.fetch(tree.branch.repository)