/brz/remove-bazaar

# Copyright (C) 2009-2018 Jelmer Vernooij <jelmer@jelmer.uk>

# 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 interfacing with a Git Branch"""

from __future__ import absolute_import

import dulwich

from dulwich.objects import (

    Commit,

    Tag,

    )

from dulwich.repo import (

    Repo as GitRepo,

    )

import os

from ... import (

    errors,

    revision,

    urlutils,

    )

from ...branch import (

    Branch,

    InterBranch,

    UnstackableBranchFormat,

    )

from ...controldir import (

    ControlDir,

    )

from ...repository import (

    Repository,

    )

from .. import (

    branch,

    tests,

    )

from ..dir import (

    LocalGitControlDirFormat,

    )

from ..mapping import (

    default_mapping,

    )

class TestGitBranch(tests.TestCaseInTempDir):

    def test_open_by_ref(self):

        GitRepo.init('.')

        url = "%s,ref=%s" % (

            urlutils.local_path_to_url(self.test_dir),

            urlutils.quote("refs/remotes/origin/unstable", safe='')

            )

        d = ControlDir.open(url)

        b = d.create_branch()

        self.assertEqual(b.ref, b"refs/remotes/origin/unstable")

    def test_open_existing(self):

        r = GitRepo.init('.')

        d = ControlDir.open('.')

        thebranch = d.create_branch()

        self.assertIsInstance(thebranch, branch.GitBranch)

    def test_repr(self):

        r = GitRepo.init('.')

        d = ControlDir.open('.')

        thebranch = d.create_branch()

        self.assertEqual(

            "<LocalGitBranch('%s/', %r)>" % (

                urlutils.local_path_to_url(self.test_dir),

                u'master'),

            repr(thebranch))

    def test_last_revision_is_null(self):

        r = GitRepo.init('.')

        thedir = ControlDir.open('.')

        thebranch = thedir.create_branch()

        self.assertEqual(revision.NULL_REVISION, thebranch.last_revision())

        self.assertEqual((0, revision.NULL_REVISION),

                         thebranch.last_revision_info())

    def simple_commit_a(self):

        r = GitRepo.init('.')

        self.build_tree(['a'])

        r.stage(["a"])

        return r.do_commit(b"a", committer=b"Somebody <foo@example.com>")

    def test_last_revision_is_valid(self):

        head = self.simple_commit_a()

        thebranch = Branch.open('.')

        self.assertEqual(default_mapping.revision_id_foreign_to_bzr(head),

                         thebranch.last_revision())

    def test_last_revision_info(self):

        reva = self.simple_commit_a()

        self.build_tree(['b'])

        r = GitRepo(".")

        self.addCleanup(r.close)

        r.stage("b")

        revb = r.do_commit(b"b", committer=b"Somebody <foo@example.com>")

        thebranch = Branch.open('.')

        self.assertEqual((2, default_mapping.revision_id_foreign_to_bzr(

            revb)), thebranch.last_revision_info())

    def test_tag_annotated(self):

        reva = self.simple_commit_a()

        o = Tag()

        o.name = b"foo"

        o.tagger = b"Jelmer <foo@example.com>"

        o.message = b"add tag"

        o.object = (Commit, reva)

        o.tag_timezone = 0

        o.tag_time = 42

        r = GitRepo(".")

        self.addCleanup(r.close)

        r.object_store.add_object(o)

        r[b'refs/tags/foo'] = o.id

        thebranch = Branch.open('.')

        self.assertEqual({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},

                         thebranch.tags.get_tag_dict())

    def test_tag(self):

        reva = self.simple_commit_a()

        r = GitRepo(".")

        self.addCleanup(r.close)

        r.refs[b"refs/tags/foo"] = reva

        thebranch = Branch.open('.')

        self.assertEqual({"foo": default_mapping.revision_id_foreign_to_bzr(reva)},

                         thebranch.tags.get_tag_dict())

class TestWithGitBranch(tests.TestCaseWithTransport):

    def setUp(self):

        tests.TestCaseWithTransport.setUp(self)

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

        d = ControlDir.open(self.test_dir)

        self.git_branch = d.create_branch()

    def test_get_parent(self):

        self.assertIs(None, self.git_branch.get_parent())

    def test_get_stacked_on_url(self):

        self.assertRaises(UnstackableBranchFormat,

                          self.git_branch.get_stacked_on_url)

    def test_get_physical_lock_status(self):

        self.assertFalse(self.git_branch.get_physical_lock_status())

class TestLocalGitBranchFormat(tests.TestCase):

    def setUp(self):

        super(TestLocalGitBranchFormat, self).setUp()

        self.format = branch.LocalGitBranchFormat()

    def test_get_format_description(self):

        self.assertEqual("Local Git Branch",

                         self.format.get_format_description())

    def test_get_network_name(self):

        self.assertEqual(b"git", self.format.network_name())

    def test_supports_tags(self):

        self.assertTrue(self.format.supports_tags())

class BranchTests(tests.TestCaseInTempDir):

    def make_onerev_branch(self):

        os.mkdir("d")

        os.chdir("d")

        GitRepo.init('.')

        bb = tests.GitBranchBuilder()

        bb.set_file("foobar", b"foo\nbar\n", False)

        mark = bb.commit(b"Somebody <somebody@someorg.org>", b"mymsg")

        gitsha = bb.finish()[mark]

        os.chdir("..")

        return os.path.abspath("d"), gitsha

    def make_tworev_branch(self):

        os.mkdir("d")

        os.chdir("d")

        GitRepo.init('.')

        bb = tests.GitBranchBuilder()

        bb.set_file("foobar", b"foo\nbar\n", False)

        mark1 = bb.commit(b"Somebody <somebody@someorg.org>", b"mymsg")

        mark2 = bb.commit(b"Somebody <somebody@someorg.org>", b"mymsg")

        marks = bb.finish()

        os.chdir("..")

        return "d", (marks[mark1], marks[mark2])

    def clone_git_branch(self, from_url, to_url):

        from_dir = ControlDir.open(from_url)

        to_dir = from_dir.sprout(to_url)

        return to_dir.open_branch()

    def test_single_rev(self):

        path, gitsha = self.make_onerev_branch()

        oldrepo = Repository.open(path)

        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)

        self.assertEqual(gitsha, oldrepo._git.get_refs()[b"refs/heads/master"])

        newbranch = self.clone_git_branch(path, "f")

        self.assertEqual([revid], newbranch.repository.all_revision_ids())

    def test_sprouted_tags(self):

        path, gitsha = self.make_onerev_branch()

        r = GitRepo(path)

        self.addCleanup(r.close)

        r.refs[b"refs/tags/lala"] = r.head()

        oldrepo = Repository.open(path)

        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)

        newbranch = self.clone_git_branch(path, "f")

        self.assertEqual({"lala": revid}, newbranch.tags.get_tag_dict())

        self.assertEqual([revid], newbranch.repository.all_revision_ids())

    def test_sprouted_ghost_tags(self):

        path, gitsha = self.make_onerev_branch()

        r = GitRepo(path)

        self.addCleanup(r.close)

        r.refs[b"refs/tags/lala"] = b"aa" * 20

        oldrepo = Repository.open(path)

        revid = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha)

        warnings, newbranch = self.callCatchWarnings(

            self.clone_git_branch, path, "f")

        self.assertEqual({}, newbranch.tags.get_tag_dict())

        # Dulwich raises a UserWarning for tags with invalid target

        self.assertIn(('ref refs/tags/lala points at non-present sha ' + ("aa" * 20), ), [w.args for w in warnings])

    def test_interbranch_pull(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull()

        self.assertEqual(revid2, newbranch.last_revision())

    def test_interbranch_pull_noop(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull()

        # This is basically "assertNotRaises"

        inter_branch.pull()

        self.assertEqual(revid2, newbranch.last_revision())

    def test_interbranch_pull_stop_revision(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        oldrepo = Repository.open(path)

        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)

        newbranch = self.make_branch('g')

        inter_branch = InterBranch.get(Branch.open(path), newbranch)

        inter_branch.pull(stop_revision=revid1)

        self.assertEqual(revid1, newbranch.last_revision())

    def test_interbranch_pull_with_tags(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        gitrepo = GitRepo(path)

        self.addCleanup(gitrepo.close)

        gitrepo.refs[b"refs/tags/sometag"] = gitsha2

        oldrepo = Repository.open(path)

        revid1 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha1)

        revid2 = oldrepo.get_mapping().revision_id_foreign_to_bzr(gitsha2)

        newbranch = self.make_branch('g')

        source_branch = Branch.open(path)

        source_branch.get_config().set_user_option("branch.fetch_tags", True)

        inter_branch = InterBranch.get(source_branch, newbranch)

        inter_branch.pull(stop_revision=revid1)

        self.assertEqual(revid1, newbranch.last_revision())

        self.assertTrue(newbranch.repository.has_revision(revid2))

    def test_bzr_branch_bound_to_git(self):

        path, (gitsha1, gitsha2) = self.make_tworev_branch()

        wt = Branch.open(path).create_checkout('co')

        self.build_tree_contents([('co/foobar', b'blah')])

        self.assertRaises(

            errors.NoRoundtrippingSupport, wt.commit,

            'commit from bound branch.')

        revid = wt.commit('commit from bound branch.', lossy=True)

        self.assertEqual(revid, wt.branch.last_revision())

        self.assertEqual(

            revid,

            wt.branch.get_master_branch().last_revision())

class ForeignTestsBranchFactory(object):

    def make_empty_branch(self, transport):

        d = LocalGitControlDirFormat().initialize_on_transport(transport)

        return d.create_branch()

    make_branch = make_empty_branch