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# Copyright (C) 2005, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from bzrlib.branch import Branch
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from bzrlib.bzrdir import BzrDir
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from bzrlib.repofmt import knitrepo
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from bzrlib.tests import TestCaseWithTransport
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from bzrlib.tests.http_utils import TestCaseWithWebserver
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from bzrlib.tests.test_revision import make_branches
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from bzrlib.trace import mutter
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from bzrlib.upgrade import Convert
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from bzrlib.workingtree import WorkingTree
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# These tests are a bit old; please instead add new tests into
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# per_interrepository/ so they'll run on all relevant
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def has_revision(branch, revision_id):
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return branch.repository.has_revision(revision_id)
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def fetch_steps(self, br_a, br_b, writable_a):
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"""A foreign test method for testing fetch locally and remotely."""
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# TODO RBC 20060201 make this a repository test.
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repo_b = br_b.repository
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self.assertFalse(repo_b.has_revision(br_a.revision_history()[3]))
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self.assertTrue(repo_b.has_revision(br_a.revision_history()[2]))
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self.assertEquals(len(br_b.revision_history()), 7)
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br_b.fetch(br_a, br_a.revision_history()[2])
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# branch.fetch is not supposed to alter the revision history
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self.assertEquals(len(br_b.revision_history()), 7)
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self.assertFalse(repo_b.has_revision(br_a.revision_history()[3]))
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# fetching the next revision up in sample data copies one revision
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br_b.fetch(br_a, br_a.revision_history()[3])
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self.assertTrue(repo_b.has_revision(br_a.revision_history()[3]))
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self.assertFalse(has_revision(br_a, br_b.revision_history()[6]))
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self.assertTrue(br_a.repository.has_revision(br_b.revision_history()[5]))
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# When a non-branch ancestor is missing, it should be unlisted...
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# as its not reference from the inventory weave.
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br_b4 = self.make_branch('br_4')
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writable_a.fetch(br_b)
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self.assertTrue(has_revision(br_a, br_b.revision_history()[3]))
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self.assertTrue(has_revision(br_a, br_b.revision_history()[4]))
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br_b2 = self.make_branch('br_b2')
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self.assertTrue(has_revision(br_b2, br_b.revision_history()[4]))
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self.assertTrue(has_revision(br_b2, br_a.revision_history()[2]))
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self.assertFalse(has_revision(br_b2, br_a.revision_history()[3]))
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br_a2 = self.make_branch('br_a2')
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self.assertTrue(has_revision(br_a2, br_b.revision_history()[4]))
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self.assertTrue(has_revision(br_a2, br_a.revision_history()[3]))
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self.assertTrue(has_revision(br_a2, br_a.revision_history()[2]))
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br_a3 = self.make_branch('br_a3')
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# pulling a branch with no revisions grabs nothing, regardless of
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# whats in the inventory.
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for revno in range(4):
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br_a3.repository.has_revision(br_a.revision_history()[revno]))
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br_a3.fetch(br_a2, br_a.revision_history()[2])
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# pull the 3 revisions introduced by a@u-0-3
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br_a3.fetch(br_a2, br_a.revision_history()[3])
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# NoSuchRevision should be raised if the branch is missing the revision
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self.assertRaises(errors.NoSuchRevision, br_a3.fetch, br_a2, 'pizza')
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# TODO: Test trying to fetch from a branch that points to a revision not
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# actually present in its repository. Not every branch format allows you
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# to directly point to such revisions, so it's a bit complicated to
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# construct. One way would be to uncommit and gc the revision, but not
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# every branch supports that. -- mbp 20070814
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#TODO: test that fetch correctly does reweaving when needed. RBC 20051008
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# Note that this means - updating the weave when ghosts are filled in to
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# add the right parents.
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class TestFetch(TestCaseWithTransport):
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def test_fetch(self):
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#highest indices a: 5, b: 7
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br_a, br_b = make_branches(self, format='dirstate-tags')
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fetch_steps(self, br_a, br_b, br_a)
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def test_fetch_self(self):
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wt = self.make_branch_and_tree('br')
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wt.branch.fetch(wt.branch)
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def test_fetch_root_knit(self):
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"""Ensure that knit2.fetch() updates the root knit
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This tests the case where the root has a new revision, but there are no
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corresponding filename, parent, contents or other changes.
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knit1_format = bzrdir.BzrDirMetaFormat1()
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knit1_format.repository_format = knitrepo.RepositoryFormatKnit1()
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knit2_format = bzrdir.BzrDirMetaFormat1()
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knit2_format.repository_format = knitrepo.RepositoryFormatKnit3()
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# we start with a knit1 repository because that causes the
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# root revision to change for each commit, even though the content,
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# parent, name, and other attributes are unchanged.
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tree = self.make_branch_and_tree('tree', knit1_format)
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tree.set_root_id('tree-root')
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tree.commit('rev1', rev_id='rev1')
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tree.commit('rev2', rev_id='rev2')
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# Now we convert it to a knit2 repository so that it has a root knit
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Convert(tree.basedir, knit2_format)
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tree = WorkingTree.open(tree.basedir)
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branch = self.make_branch('branch', format=knit2_format)
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branch.pull(tree.branch, stop_revision='rev1')
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repo = branch.repository
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# Make sure fetch retrieved only what we requested
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self.assertEqual({('tree-root', 'rev1'):()},
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repo.texts.get_parent_map(
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[('tree-root', 'rev1'), ('tree-root', 'rev2')]))
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branch.pull(tree.branch)
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# Make sure that the next revision in the root knit was retrieved,
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# even though the text, name, parent_id, etc., were unchanged.
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# Make sure fetch retrieved only what we requested
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self.assertEqual({('tree-root', 'rev2'):(('tree-root', 'rev1'),)},
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repo.texts.get_parent_map([('tree-root', 'rev2')]))
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def test_fetch_incompatible(self):
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knit_tree = self.make_branch_and_tree('knit', format='knit')
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knit3_tree = self.make_branch_and_tree('knit3',
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format='dirstate-with-subtree')
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knit3_tree.commit('blah')
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e = self.assertRaises(errors.IncompatibleRepositories,
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knit_tree.branch.fetch, knit3_tree.branch)
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self.assertContainsRe(str(e),
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r"(?m).*/knit.*\nis not compatible with\n.*/knit3/.*\n"
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r"different rich-root support")
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class TestMergeFetch(TestCaseWithTransport):
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def test_merge_fetches_unrelated(self):
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"""Merge brings across history from unrelated source"""
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wt1 = self.make_branch_and_tree('br1')
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wt1.commit(message='rev 1-1', rev_id='1-1')
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wt1.commit(message='rev 1-2', rev_id='1-2')
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wt2 = self.make_branch_and_tree('br2')
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wt2.commit(message='rev 2-1', rev_id='2-1')
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wt2.merge_from_branch(br1, from_revision='null:')
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self._check_revs_present(br2)
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def test_merge_fetches(self):
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"""Merge brings across history from source"""
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wt1 = self.make_branch_and_tree('br1')
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wt1.commit(message='rev 1-1', rev_id='1-1')
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dir_2 = br1.bzrdir.sprout('br2')
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br2 = dir_2.open_branch()
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wt1.commit(message='rev 1-2', rev_id='1-2')
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wt2 = dir_2.open_workingtree()
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wt2.commit(message='rev 2-1', rev_id='2-1')
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wt2.merge_from_branch(br1)
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self._check_revs_present(br2)
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def _check_revs_present(self, br2):
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for rev_id in '1-1', '1-2', '2-1':
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self.assertTrue(br2.repository.has_revision(rev_id))
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rev = br2.repository.get_revision(rev_id)
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self.assertEqual(rev.revision_id, rev_id)
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self.assertTrue(br2.repository.get_inventory(rev_id))
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class TestMergeFileHistory(TestCaseWithTransport):
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super(TestMergeFileHistory, self).setUp()
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wt1 = self.make_branch_and_tree('br1')
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self.build_tree_contents([('br1/file', 'original contents\n')])
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wt1.add('file', 'this-file-id')
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wt1.commit(message='rev 1-1', rev_id='1-1')
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dir_2 = br1.bzrdir.sprout('br2')
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br2 = dir_2.open_branch()
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wt2 = dir_2.open_workingtree()
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self.build_tree_contents([('br1/file', 'original from 1\n')])
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wt1.commit(message='rev 1-2', rev_id='1-2')
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self.build_tree_contents([('br1/file', 'agreement\n')])
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wt1.commit(message='rev 1-3', rev_id='1-3')
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self.build_tree_contents([('br2/file', 'contents in 2\n')])
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wt2.commit(message='rev 2-1', rev_id='2-1')
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self.build_tree_contents([('br2/file', 'agreement\n')])
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wt2.commit(message='rev 2-2', rev_id='2-2')
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def test_merge_fetches_file_history(self):
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"""Merge brings across file histories"""
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br2 = Branch.open('br2')
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br1 = Branch.open('br1')
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wt2 = WorkingTree.open('br2').merge_from_branch(br1)
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self.addCleanup(br2.unlock)
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for rev_id, text in [('1-2', 'original from 1\n'),
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('1-3', 'agreement\n'),
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('2-1', 'contents in 2\n'),
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('2-2', 'agreement\n')]:
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self.assertEqualDiff(
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br2.repository.revision_tree(
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rev_id).get_file_text('this-file-id'), text)
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class TestHttpFetch(TestCaseWithWebserver):
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# FIXME RBC 20060124 this really isn't web specific, perhaps an
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# instrumented readonly transport? Can we do an instrumented
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# adapter and use self.get_readonly_url ?
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def test_fetch(self):
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#highest indices a: 5, b: 7
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br_a, br_b = make_branches(self)
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br_rem_a = Branch.open(self.get_readonly_url('branch1'))
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fetch_steps(self, br_rem_a, br_b, br_a)
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def _count_log_matches(self, target, logs):
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"""Count the number of times the target file pattern was fetched in an http log"""
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get_succeeds_re = re.compile(
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'.*"GET .*%s HTTP/1.1" 20[06] - "-" "bzr/%s' %
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( target, bzrlib.__version__))
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if get_succeeds_re.match(line):
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def test_weaves_are_retrieved_once(self):
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self.build_tree(("source/", "source/file", "target/"))
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# This test depends on knit dasta storage.
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wt = self.make_branch_and_tree('source', format='dirstate-tags')
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wt.add(["file"], ["id"])
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wt.commit("added file")
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open("source/file", 'w').write("blah\n")
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wt.commit("changed file")
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target = BzrDir.create_branch_and_repo("target/")
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source = Branch.open(self.get_readonly_url("source/"))
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# this is the path to the literal file. As format changes
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# occur it needs to be updated. FIXME: ask the store for the
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self.log("web server logs are:")
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http_logs = self.get_readonly_server().logs
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self.log('\n'.join(http_logs))
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# unfortunately this log entry is branch format specific. We could
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# factor out the 'what files does this format use' to a method on the
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# repository, which would let us to this generically. RBC 20060419
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# RBC 20080408: Or perhaps we can assert that no files are fully read
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self.assertEqual(1, self._count_log_matches('/ce/id.kndx', http_logs))
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self.assertEqual(1, self._count_log_matches('/ce/id.knit', http_logs))
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self.assertEqual(1, self._count_log_matches('inventory.kndx', http_logs))
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# this r-h check test will prevent regressions, but it currently already
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# passes, before the patch to cache-rh is applied :[
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self.assertTrue(1 >= self._count_log_matches('revision-history',
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self.assertTrue(1 >= self._count_log_matches('last-revision',
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# FIXME naughty poking in there.
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self.get_readonly_server().logs = []
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# check there is nothing more to fetch. We take care to re-use the
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# existing transport so that the request logs we're about to examine
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# aren't cluttered with redundant probes for a smart server.
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# XXX: Perhaps this further parameterisation: test http with smart
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# server, and test http without smart server?
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source = Branch.open(
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self.get_readonly_url("source/"),
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possible_transports=[source.bzrdir.root_transport])
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# should make just two requests
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http_logs = self.get_readonly_server().logs
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self.log("web server logs are:")
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self.log('\n'.join(http_logs))
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self.assertEqual(1, self._count_log_matches('branch-format', http_logs))
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self.assertEqual(1, self._count_log_matches('branch/format', http_logs))
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self.assertEqual(1, self._count_log_matches('repository/format',
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self.assertEqual(1, self._count_log_matches('revisions.kndx',
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self.assertTrue(1 >= self._count_log_matches('revision-history',
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self.assertTrue(1 >= self._count_log_matches('last-revision',
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self.assertLength(5, http_logs)
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class TestKnitToPackFetch(TestCaseWithTransport):
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def find_get_record_stream(self, calls, expected_count=1):
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"""In a list of calls, find the last 'get_record_stream'.
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:param expected_count: The number of calls we should exepect to find.
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If a different number is found, an assertion is raised.
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get_record_call = None
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if call[0] == 'get_record_stream':
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get_record_call = call
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self.assertEqual(expected_count, call_count)
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return get_record_call
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def test_fetch_with_deltas_no_delta_closure(self):
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tree = self.make_branch_and_tree('source', format='dirstate')
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target = self.make_repository('target', format='pack-0.92')
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self.build_tree(['source/file'])
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tree.set_root_id('root-id')
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tree.add('file', 'file-id')
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tree.commit('one', rev_id='rev-one')
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source = tree.branch.repository
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source.texts = versionedfile.RecordingVersionedFilesDecorator(
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source.signatures = versionedfile.RecordingVersionedFilesDecorator(
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source.revisions = versionedfile.RecordingVersionedFilesDecorator(
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source.inventories = versionedfile.RecordingVersionedFilesDecorator(
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self.assertTrue(target._format._fetch_uses_deltas)
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target.fetch(source, revision_id='rev-one')
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self.assertEqual(('get_record_stream', [('file-id', 'rev-one')],
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target._format._fetch_order, False),
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self.find_get_record_stream(source.texts.calls))
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, False),
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self.find_get_record_stream(source.inventories.calls, 2))
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, False),
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self.find_get_record_stream(source.revisions.calls))
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# XXX: Signatures is special, and slightly broken. The
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# standard item_keys_introduced_by actually does a lookup for every
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# signature to see if it exists, rather than waiting to do them all at
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# once at the end. The fetch code then does an all-at-once and just
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# allows for some of them to be missing.
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# So we know there will be extra calls, but the *last* one is the one
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signature_calls = source.signatures.calls[-1:]
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, False),
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self.find_get_record_stream(signature_calls))
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def test_fetch_no_deltas_with_delta_closure(self):
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tree = self.make_branch_and_tree('source', format='dirstate')
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target = self.make_repository('target', format='pack-0.92')
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self.build_tree(['source/file'])
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tree.set_root_id('root-id')
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tree.add('file', 'file-id')
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tree.commit('one', rev_id='rev-one')
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source = tree.branch.repository
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source.texts = versionedfile.RecordingVersionedFilesDecorator(
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source.signatures = versionedfile.RecordingVersionedFilesDecorator(
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source.revisions = versionedfile.RecordingVersionedFilesDecorator(
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source.inventories = versionedfile.RecordingVersionedFilesDecorator(
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# XXX: This won't work in general, but for the dirstate format it does.
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old_fetch_uses_deltas_setting = target._format._fetch_uses_deltas
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target._format._fetch_uses_deltas = old_fetch_uses_deltas_setting
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self.addCleanup(restore)
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target._format._fetch_uses_deltas = False
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target.fetch(source, revision_id='rev-one')
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self.assertEqual(('get_record_stream', [('file-id', 'rev-one')],
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target._format._fetch_order, True),
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self.find_get_record_stream(source.texts.calls))
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, True),
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self.find_get_record_stream(source.inventories.calls, 2))
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, True),
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self.find_get_record_stream(source.revisions.calls))
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# XXX: Signatures is special, and slightly broken. The
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# standard item_keys_introduced_by actually does a lookup for every
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# signature to see if it exists, rather than waiting to do them all at
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# once at the end. The fetch code then does an all-at-once and just
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# allows for some of them to be missing.
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# So we know there will be extra calls, but the *last* one is the one
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signature_calls = source.signatures.calls[-1:]
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self.assertEqual(('get_record_stream', [('rev-one',)],
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target._format._fetch_order, True),
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self.find_get_record_stream(signature_calls))
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def test_fetch_revisions_with_deltas_into_pack(self):
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# See BUG #261339, dev versions of bzr could accidentally create deltas
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# in revision texts in knit branches (when fetching from packs). So we
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# ensure that *if* a knit repository has a delta in revisions, that it
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# gets properly expanded back into a fulltext when stored in the pack
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tree = self.make_branch_and_tree('source', format='dirstate')
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target = self.make_repository('target', format='pack-0.92')
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self.build_tree(['source/file'])
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tree.set_root_id('root-id')
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tree.add('file', 'file-id')
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tree.commit('one', rev_id='rev-one')
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# Hack the KVF for revisions so that it "accidentally" allows a delta
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tree.branch.repository.revisions._max_delta_chain = 200
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tree.commit('two', rev_id='rev-two')
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source = tree.branch.repository
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# Ensure that we stored a delta
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self.addCleanup(source.unlock)
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record = source.revisions.get_record_stream([('rev-two',)],
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'unordered', False).next()
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self.assertEqual('knit-delta-gz', record.storage_kind)
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target.fetch(tree.branch.repository, revision_id='rev-two')
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# The record should get expanded back to a fulltext
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self.addCleanup(target.unlock)
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record = target.revisions.get_record_stream([('rev-two',)],
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'unordered', False).next()
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self.assertEqual('knit-ft-gz', record.storage_kind)
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def test_fetch_with_fallback_and_merge(self):
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builder = self.make_branch_builder('source', format='pack-0.92')
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builder.start_series()
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# A & B are present in the base (stacked-on) repository, A-E are
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# present in the source.
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# This reproduces bug #304841
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# We need a large enough inventory that total size of compressed deltas
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# is shorter than the size of a compressed fulltext. We have to use
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# random ids because otherwise the inventory fulltext compresses too
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# well and the deltas get bigger.
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('add', ('', 'TREE_ROOT', 'directory', None))]
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fname = 'file%03d' % (i,)
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fileid = '%s-%s' % (fname, osutils.rand_chars(64))
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to_add.append(('add', (fname, fileid, 'file', 'content\n')))
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builder.build_snapshot('A', None, to_add)
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builder.build_snapshot('B', ['A'], [])
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builder.build_snapshot('C', ['A'], [])
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builder.build_snapshot('D', ['C'], [])
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builder.build_snapshot('E', ['D'], [])
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builder.build_snapshot('F', ['E', 'B'], [])
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builder.finish_series()
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source_branch = builder.get_branch()
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source_branch.bzrdir.sprout('base', revision_id='B')
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target_branch = self.make_branch('target', format='1.6')
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target_branch.set_stacked_on_url('../base')
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source = source_branch.repository
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self.addCleanup(source.unlock)
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source.inventories = versionedfile.OrderingVersionedFilesDecorator(
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key_priority={('E',): 1, ('D',): 2, ('C',): 4,
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# Ensure that the content is yielded in the proper order, and given as
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records = [(record.key, record.storage_kind)
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for record in source.inventories.get_record_stream(
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[('D',), ('C',), ('E',), ('F',)], 'unordered', False)]
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self.assertEqual([(('E',), 'knit-delta-gz'), (('D',), 'knit-delta-gz'),
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(('F',), 'knit-delta-gz'), (('C',), 'knit-delta-gz')],
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target_branch.lock_write()
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self.addCleanup(target_branch.unlock)
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target = target_branch.repository
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target.fetch(source, revision_id='F')
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# 'C' should be expanded to a fulltext, but D and E should still be
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stream = target.inventories.get_record_stream(
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[('C',), ('D',), ('E',), ('F',)],
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kinds = dict((record.key, record.storage_kind) for record in stream)
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self.assertEqual({('C',): 'knit-ft-gz', ('D',): 'knit-delta-gz',
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('E',): 'knit-delta-gz', ('F',): 'knit-delta-gz'},
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class Test1To2Fetch(TestCaseWithTransport):
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"""Tests for Model1To2 failure modes"""
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def make_tree_and_repo(self):
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self.tree = self.make_branch_and_tree('tree', format='pack-0.92')
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self.repo = self.make_repository('rich-repo', format='rich-root-pack')
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self.repo.lock_write()
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self.addCleanup(self.repo.unlock)
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def do_fetch_order_test(self, first, second):
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"""Test that fetch works no matter what the set order of revision is.
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This test depends on the order of items in a set, which is
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implementation-dependant, so we test A, B and then B, A.
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self.make_tree_and_repo()
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self.tree.commit('Commit 1', rev_id=first)
549
self.tree.commit('Commit 2', rev_id=second)
550
self.repo.fetch(self.tree.branch.repository, second)
552
def test_fetch_order_AB(self):
553
"""See do_fetch_order_test"""
554
self.do_fetch_order_test('A', 'B')
556
def test_fetch_order_BA(self):
557
"""See do_fetch_order_test"""
558
self.do_fetch_order_test('B', 'A')
560
def get_parents(self, file_id, revision_id):
561
self.repo.lock_read()
563
parent_map = self.repo.texts.get_parent_map([(file_id, revision_id)])
564
return parent_map[(file_id, revision_id)]
568
def test_fetch_ghosts(self):
569
self.make_tree_and_repo()
570
self.tree.commit('first commit', rev_id='left-parent')
571
self.tree.add_parent_tree_id('ghost-parent')
572
fork = self.tree.bzrdir.sprout('fork', 'null:').open_workingtree()
573
fork.commit('not a ghost', rev_id='not-ghost-parent')
574
self.tree.branch.repository.fetch(fork.branch.repository,
576
self.tree.add_parent_tree_id('not-ghost-parent')
577
self.tree.commit('second commit', rev_id='second-id')
578
self.repo.fetch(self.tree.branch.repository, 'second-id')
579
root_id = self.tree.get_root_id()
581
((root_id, 'left-parent'), (root_id, 'not-ghost-parent')),
582
self.get_parents(root_id, 'second-id'))
584
def make_two_commits(self, change_root, fetch_twice):
585
self.make_tree_and_repo()
586
self.tree.commit('first commit', rev_id='first-id')
588
self.tree.set_root_id('unique-id')
589
self.tree.commit('second commit', rev_id='second-id')
591
self.repo.fetch(self.tree.branch.repository, 'first-id')
592
self.repo.fetch(self.tree.branch.repository, 'second-id')
594
def test_fetch_changed_root(self):
595
self.make_two_commits(change_root=True, fetch_twice=False)
596
self.assertEqual((), self.get_parents('unique-id', 'second-id'))
598
def test_two_fetch_changed_root(self):
599
self.make_two_commits(change_root=True, fetch_twice=True)
600
self.assertEqual((), self.get_parents('unique-id', 'second-id'))
602
def test_two_fetches(self):
603
self.make_two_commits(change_root=False, fetch_twice=True)
604
self.assertEqual((('TREE_ROOT', 'first-id'),),
605
self.get_parents('TREE_ROOT', 'second-id'))
added
removed
bzrlib/tests/test_fetch.py
