/brz/remove-bazaar

# Copyright (C) 2007 Canonical Ltd

# Copyright (C) 2007-2018 Jelmer Vernooij <jelmer@jelmer.uk>

#

# 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 interfacing with a Git Repository"""

from __future__ import absolute_import

import dulwich

from dulwich.repo import (

    Repo as GitRepo,

    )

import os

from .... import (

    config,

    errors,

    revision,

    )

from ....repository import (

    InterRepository,

    Repository,

    )

from .. import (

    dir,

    repository,

    tests,

    )

from ..mapping import (

    default_mapping,

    )

from ..object_store import (

    BazaarObjectStore,

    )

from ..push import (

    MissingObjectsIterator,

    )

class TestGitRepositoryFeatures(tests.TestCaseInTempDir):

    """Feature tests for GitRepository."""

    def _do_commit(self):

        builder = tests.GitBranchBuilder()

        builder.set_file(b'a', b'text for a\n', False)

        commit_handle = builder.commit(b'Joe Foo <joe@foo.com>', b'message')

        mapping = builder.finish()

        return mapping[commit_handle]

    def test_open_existing(self):

        GitRepo.init(self.test_dir)

        repo = Repository.open('.')

        self.assertIsInstance(repo, repository.GitRepository)

    def test_has_git_repo(self):

        GitRepo.init(self.test_dir)

        repo = Repository.open('.')

        self.assertIsInstance(repo._git, dulwich.repo.BaseRepo)

    def test_has_revision(self):

        GitRepo.init(self.test_dir)

        commit_id = self._do_commit()

        repo = Repository.open('.')

        self.assertFalse(repo.has_revision(b'foobar'))

        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)

        self.assertTrue(repo.has_revision(revid))

    def test_has_revisions(self):

        GitRepo.init(self.test_dir)

        commit_id = self._do_commit()

        repo = Repository.open('.')

        self.assertEqual(set(), repo.has_revisions([b'foobar']))

        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)

        self.assertEqual(set([revid]), repo.has_revisions([b'foobar', revid]))

    def test_get_revision(self):

        # GitRepository.get_revision gives a Revision object.

        # Create a git repository with a revision.

        GitRepo.init(self.test_dir)

        commit_id = self._do_commit()

        # Get the corresponding Revision object.

        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)

        repo = Repository.open('.')

        rev = repo.get_revision(revid)

        self.assertIsInstance(rev, revision.Revision)

    def test_get_revision_unknown(self):

        GitRepo.init(self.test_dir)

        repo = Repository.open('.')

        self.assertRaises(errors.NoSuchRevision, repo.get_revision, b"bla")

    def simple_commit(self):

        # Create a git repository with some interesting files in a revision.

        GitRepo.init(self.test_dir)

        builder = tests.GitBranchBuilder()

        builder.set_file(b'data', b'text\n', False)

        builder.set_file(b'executable', b'content', True)

        builder.set_symlink(b'link', b'broken')

        builder.set_file(b'subdir/subfile', b'subdir text\n', False)

        commit_handle = builder.commit(b'Joe Foo <joe@foo.com>', b'message',

            timestamp=1205433193)

        mapping = builder.finish()

        return mapping[commit_handle]

    def test_pack(self):

        commit_id = self.simple_commit()

        repo = Repository.open('.')

        repo.pack()

    def test_revision_tree(self):

        commit_id = self.simple_commit()

        revid = default_mapping.revision_id_foreign_to_bzr(commit_id)

        repo = Repository.open('.')

        tree = repo.revision_tree(revid)

        self.assertEqual(tree.get_revision_id(), revid)

        self.assertEqual(b"text\n", tree.get_file_text("data"))

class TestGitRepository(tests.TestCaseWithTransport):

    def _do_commit(self):

        builder = tests.GitBranchBuilder()

        builder.set_file(b'a', b'text for a\n', False)

        commit_handle = builder.commit(b'Joe Foo <joe@foo.com>', b'message')

        mapping = builder.finish()

        return mapping[commit_handle]

    def setUp(self):

        tests.TestCaseWithTransport.setUp(self)

        dulwich.repo.Repo.create(self.test_dir)

        self.git_repo = Repository.open(self.test_dir)

    def test_supports_rich_root(self):

        repo = self.git_repo

        self.assertEqual(repo.supports_rich_root(), True)

    def test_get_signature_text(self):

        self.assertRaises(errors.NoSuchRevision, self.git_repo.get_signature_text, revision.NULL_REVISION)

    def test_has_signature_for_revision_id(self):

        self.assertEqual(False, self.git_repo.has_signature_for_revision_id(revision.NULL_REVISION))

    def test_all_revision_ids_none(self):

        self.assertEqual([], self.git_repo.all_revision_ids())

    def test_get_known_graph_ancestry(self):

        cid = self._do_commit()

        revid = default_mapping.revision_id_foreign_to_bzr(cid)

        g = self.git_repo.get_known_graph_ancestry([revid])

        self.assertEqual(frozenset([revid]),

            g.heads([revid]))

        self.assertEqual([(revid, 0, (1,), True)],

            [(n.key, n.merge_depth, n.revno, n.end_of_merge)

                 for n in g.merge_sort(revid)])

    def test_all_revision_ids(self):

        commit_id = self._do_commit()

        self.assertEqual(

                [default_mapping.revision_id_foreign_to_bzr(commit_id)],

                self.git_repo.all_revision_ids())

    def assertIsNullInventory(self, inv):

        self.assertEqual(inv.root, None)

        self.assertEqual(inv.revision_id, revision.NULL_REVISION)

        self.assertEqual(list(inv.iter_entries()), [])

    def test_revision_tree_none(self):

        # GitRepository.revision_tree(None) returns the null tree.

        repo = self.git_repo

        tree = repo.revision_tree(revision.NULL_REVISION)

        self.assertEqual(tree.get_revision_id(), revision.NULL_REVISION)

        self.assertIs(None, tree.get_root_id())

    def test_get_parent_map_null(self):

        self.assertEqual({revision.NULL_REVISION: ()},

                           self.git_repo.get_parent_map([revision.NULL_REVISION]))

class SigningGitRepository(tests.TestCaseWithTransport):

    def test_signed_commit(self):

        import breezy.gpg

        oldstrategy = breezy.gpg.GPGStrategy

        wt = self.make_branch_and_tree('.', format='git')

        branch = wt.branch

        revid = wt.commit("base", allow_pointless=True)

        self.assertFalse(branch.repository.has_signature_for_revision_id(revid))

        try:

            breezy.gpg.GPGStrategy = breezy.gpg.LoopbackGPGStrategy

            conf = config.MemoryStack(b'''

create_signatures=always

''')

            revid2 = wt.commit(config=conf, message="base", allow_pointless=True)

            def sign(text):

                return breezy.gpg.LoopbackGPGStrategy(None).sign(text)

            self.assertIsInstance(branch.repository.get_signature_text(revid2), bytes)

        finally:

            breezy.gpg.GPGStrategy = oldstrategy

class GitRepositoryFormat(tests.TestCase):

    def setUp(self):

        super(GitRepositoryFormat, self).setUp()

        self.format = repository.GitRepositoryFormat()

    def test_get_format_description(self):

        self.assertEqual("Git Repository",

                          self.format.get_format_description())

class RevisionGistImportTests(tests.TestCaseWithTransport):

    def setUp(self):

        tests.TestCaseWithTransport.setUp(self)

        self.git_path = os.path.join(self.test_dir, "git")

        os.mkdir(self.git_path)

        dulwich.repo.Repo.create(self.git_path)

        self.git_repo = Repository.open(self.git_path)

        self.bzr_tree = self.make_branch_and_tree("bzr")

    def get_inter(self):

        return InterRepository.get(self.bzr_tree.branch.repository,

                                   self.git_repo)

    def object_iter(self):

        store = BazaarObjectStore(self.bzr_tree.branch.repository, default_mapping)

        store_iterator = MissingObjectsIterator(store, self.bzr_tree.branch.repository)

        return store, store_iterator

    def import_rev(self, revid, parent_lookup=None):

        store, store_iter = self.object_iter()

        store._cache.idmap.start_write_group()

        try:

            return store_iter.import_revision(revid, lossy=True)

        except:

            store._cache.idmap.abort_write_group()

            raise

        else:

            store._cache.idmap.commit_write_group()

    def test_pointless(self):

        revid = self.bzr_tree.commit("pointless", timestamp=1205433193,

                timezone=0, committer="Jelmer Vernooij <jelmer@samba.org>")

        self.assertEqual(b"2caa8094a5b794961cd9bf582e3e2bb090db0b14",

                self.import_rev(revid))

        self.assertEqual(b"2caa8094a5b794961cd9bf582e3e2bb090db0b14",

                self.import_rev(revid))

class ForeignTestsRepositoryFactory(object):

    def make_repository(self, transport):

        return dir.LocalGitControlDirFormat().initialize_on_transport(transport).open_repository()