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# 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 Branch.sprout()"""
import os
from bzrlib import (
branch as _mod_branch,
errors,
osutils,
remote,
revision as _mod_revision,
tests,
)
from bzrlib.tests.per_branch import TestCaseWithBranch
class TestSprout(TestCaseWithBranch):
def test_sprout_branch_nickname(self):
# test the nick name is reset always
raise tests.TestSkipped('XXX branch sprouting is not yet tested.')
def test_sprout_branch_parent(self):
source = self.make_branch('source')
target = source.bzrdir.sprout(self.get_url('target')).open_branch()
self.assertEqual(source.bzrdir.root_transport.base, target.get_parent())
def test_sprout_uses_bzrdir_branch_format(self):
# branch.sprout(bzrdir) is defined as using the branch format selected
# by bzrdir; format preservation is achieved by parameterising the
# bzrdir during bzrdir.sprout, which is where stacking compatibility
# checks are done. So this test tests that each implementation of
# Branch.sprout delegates appropriately to the bzrdir which the
# branch is being created in, rather than testing that the result is
# in the format that we are testing (which is what would happen if
# the branch did not delegate appropriately).
if isinstance(self.branch_format, _mod_branch.BranchReferenceFormat):
raise tests.TestNotApplicable('cannot sprout to a reference')
# Start with a format that is unlikely to be the target format
# We call the super class to allow overriding the format of creation)
source = tests.TestCaseWithTransport.make_branch(self, 'old-branch',
format='knit')
target_bzrdir = self.make_bzrdir('target')
target_bzrdir.create_repository()
result_format = self.branch_format
if isinstance(target_bzrdir, remote.RemoteBzrDir):
# for a remote bzrdir, we need to parameterise it with a branch
# format, as, after creation, the newly opened remote objects
# do not have one unless a branch was created at the time.
# We use branch format 6 because its not the default, and its not
# metaweave either.
target_bzrdir._format.set_branch_format(_mod_branch.BzrBranchFormat6())
result_format = target_bzrdir._format.get_branch_format()
target = source.sprout(target_bzrdir)
if isinstance(target, remote.RemoteBranch):
# we have to look at the real branch to see whether RemoteBranch
# did the right thing.
target._ensure_real()
target = target._real_branch
if isinstance(result_format, remote.RemoteBranchFormat):
# Unwrap a parameterised RemoteBranchFormat for comparison.
result_format = result_format._custom_format
self.assertIs(result_format.__class__, target._format.__class__)
def test_sprout_partial(self):
# test sprouting with a prefix of the revision-history.
# also needs not-on-revision-history behaviour defined.
wt_a = self.make_branch_and_tree('a')
self.build_tree(['a/one'])
wt_a.add(['one'])
wt_a.commit('commit one', rev_id='1')
self.build_tree(['a/two'])
wt_a.add(['two'])
wt_a.commit('commit two', rev_id='2')
repo_b = self.make_repository('b')
repo_a = wt_a.branch.repository
repo_a.copy_content_into(repo_b)
br_b = wt_a.branch.sprout(repo_b.bzrdir, revision_id='1')
self.assertEqual('1', br_b.last_revision())
def test_sprout_partial_not_in_revision_history(self):
"""We should be able to sprout from any revision in ancestry."""
wt = self.make_branch_and_tree('source')
self.build_tree(['source/a'])
wt.add('a')
wt.commit('rev1', rev_id='rev1')
wt.commit('rev2-alt', rev_id='rev2-alt')
wt.set_parent_ids(['rev1'])
wt.branch.set_last_revision_info(1, 'rev1')
wt.commit('rev2', rev_id='rev2')
wt.set_parent_ids(['rev2', 'rev2-alt'])
wt.commit('rev3', rev_id='rev3')
repo = self.make_repository('target')
repo.fetch(wt.branch.repository)
branch2 = wt.branch.sprout(repo.bzrdir, revision_id='rev2-alt')
self.assertEqual((2, 'rev2-alt'), branch2.last_revision_info())
self.assertEqual(['rev1', 'rev2-alt'], branch2.revision_history())
def test_sprout_preserves_tags(self):
"""Sprout preserves tags, even tags of absent revisions."""
try:
builder = self.make_branch_builder('source')
except errors.UninitializableFormat:
raise tests.TestSkipped('Uninitializable branch format')
builder.build_commit(message="Rev 1", rev_id='rev-1')
source = builder.get_branch()
try:
source.tags.set_tag('tag-a', 'missing-rev')
except errors.TagsNotSupported:
raise tests.TestNotApplicable(
'Branch format does not support tags.')
# Now source has a tag pointing to an absent revision. Sprout it.
target_bzrdir = self.make_repository('target').bzrdir
new_branch = source.sprout(target_bzrdir)
# The tag is present in the target
self.assertEqual('missing-rev', new_branch.tags.lookup_tag('tag-a'))
def test_sprout_from_any_repo_revision(self):
"""We should be able to sprout from any revision."""
wt = self.make_branch_and_tree('source')
self.build_tree(['source/a'])
wt.add('a')
wt.commit('rev1a', rev_id='rev1a')
# simulated uncommit
wt.branch.set_last_revision_info(0, _mod_revision.NULL_REVISION)
wt.set_last_revision(_mod_revision.NULL_REVISION)
wt.revert()
wt.commit('rev1b', rev_id='rev1b')
wt2 = wt.bzrdir.sprout('target',
revision_id='rev1a').open_workingtree()
self.assertEqual('rev1a', wt2.last_revision())
self.assertPathExists('target/a')
def test_sprout_with_unicode_symlink(self):
# this tests bug #272444
# Since the trigger function seems to be set_parent_trees, there exists
# also a similar test, with name test_unicode_symlink, in class
# TestSetParents at file per_workingtree/test_parents.py
self.requireFeature(tests.SymlinkFeature)
self.requireFeature(tests.UnicodeFilenameFeature)
tree = self.make_branch_and_tree('tree1')
# The link points to a file whose name is an omega
# U+03A9 GREEK CAPITAL LETTER OMEGA
# UTF-8: ce a9 UTF-16BE: 03a9 Decimal: Ω
target = u'\u03a9'
link_name = u'\N{Euro Sign}link'
os.symlink(target, 'tree1/' + link_name)
tree.add([link_name],['link-id'])
revision = tree.commit('added a link to a Unicode target')
tree.bzrdir.sprout('dest')
self.assertEqual(target, osutils.readlink('dest/' + link_name))
tree.lock_read()
self.addCleanup(tree.unlock)
# Check that the symlink target is safely round-tripped in the trees.
self.assertEqual(target, tree.get_symlink_target('link-id'))
self.assertEqual(target,
tree.basis_tree().get_symlink_target('link-id'))
def test_sprout_with_ghost_in_mainline(self):
tree = self.make_branch_and_tree('tree1')
tree.set_parent_ids(["spooky"], allow_leftmost_as_ghost=True)
tree.add('')
tree.commit('msg1', rev_id='rev1')
tree.commit('msg2', rev_id='rev2')
tree.bzrdir.sprout('target', revision_id='rev1')
def assertBranchHookBranchIsStacked(self, pre_change_params):
# Just calling will either succeed or fail.
pre_change_params.branch.get_stacked_on_url()
self.hook_calls.append(pre_change_params)
def test_sprout_stacked_hooks_get_stacked_branch(self):
tree = self.make_branch_and_tree('source')
tree.commit('a commit')
revid = tree.commit('a second commit')
source = tree.branch
target_transport = self.get_transport('target')
self.hook_calls = []
_mod_branch.Branch.hooks.install_named_hook("pre_change_branch_tip",
self.assertBranchHookBranchIsStacked, None)
try:
dir = source.bzrdir.sprout(target_transport.base,
source.last_revision(), possible_transports=[target_transport],
source_branch=source, stacked=True)
except errors.UnstackableBranchFormat:
if not self.branch_format.supports_stacking():
raise tests.TestNotApplicable(
"Format doesn't auto stack successfully.")
else:
raise
result = dir.open_branch()
self.assertEqual(revid, result.last_revision())
self.assertEqual(source.base, result.get_stacked_on_url())
# Smart servers invoke hooks on both sides
if isinstance(result, remote.RemoteBranch):
expected_calls = 2
else:
expected_calls = 1
self.assertEqual(expected_calls, len(self.hook_calls))
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