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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-09-26 21:11:30 UTC
  • mfrom: (3711.4.3 autopack_bug_242510)
  • Revision ID: pqm@pqm.ubuntu.com-20080926211130-ojyixbni0jpqoify
(jam) When packing create a single new pack,
        fixes bugs #242510 and #172644

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Lines of Context:
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    def get_format(self):
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        return bzrdir.format_registry.make_bzrdir('pack-0.92')
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    def get_packs(self):
 
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        format = self.get_format()
 
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        repo = self.make_repository('.', format=format)
 
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        return repo._pack_collection
 
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    def test__max_pack_count(self):
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        """The maximum pack count is a function of the number of revisions."""
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
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        # no revisions - one pack, so that we can have a revision free repo
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        # without it blowing up
 
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        packs = self.get_packs()
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        self.assertEqual(1, packs._max_pack_count(0))
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        # after that the sum of the digits, - check the first 1-9
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        self.assertEqual(1, packs._max_pack_count(1))
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        self.assertEqual(25, packs._max_pack_count(112894))
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    def test_pack_distribution_zero(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        self.assertEqual([0], packs.pack_distribution(0))
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    def test_ensure_loaded_unlocked(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
 
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        packs = self.get_packs()
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        self.assertRaises(errors.ObjectNotLocked,
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                          repo._pack_collection.ensure_loaded)
 
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                          packs.ensure_loaded)
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    def test_pack_distribution_one_to_nine(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        self.assertEqual([1],
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            packs.pack_distribution(1))
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        self.assertEqual([1, 1],
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    def test_pack_distribution_stable_at_boundaries(self):
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        """When there are multi-rev packs the counts are stable."""
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        # in 10s:
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        self.assertEqual([10], packs.pack_distribution(10))
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        self.assertEqual([10, 1], packs.pack_distribution(11))
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        self.assertEqual([100, 100, 10, 1], packs.pack_distribution(211))
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    def test_plan_pack_operations_2009_revisions_skip_all_packs(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        existing_packs = [(2000, "big"), (9, "medium")]
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        # rev count - 2009 -> 2x1000 + 9x1
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        pack_operations = packs.plan_autopack_combinations(
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        self.assertEqual([], pack_operations)
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    def test_plan_pack_operations_2010_revisions_skip_all_packs(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        existing_packs = [(2000, "big"), (9, "medium"), (1, "single")]
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        # rev count - 2010 -> 2x1000 + 1x10
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        pack_operations = packs.plan_autopack_combinations(
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        self.assertEqual([], pack_operations)
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    def test_plan_pack_operations_2010_combines_smallest_two(self):
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        format = self.get_format()
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        repo = self.make_repository('.', format=format)
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        packs = repo._pack_collection
 
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        packs = self.get_packs()
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        existing_packs = [(1999, "big"), (9, "medium"), (1, "single2"),
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            (1, "single1")]
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        # rev count - 2010 -> 2x1000 + 1x10 (3)
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        pack_operations = packs.plan_autopack_combinations(
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            existing_packs, [1000, 1000, 10])
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        self.assertEqual([[2, ["single2", "single1"]], [0, []]], pack_operations)
 
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        self.assertEqual([[2, ["single2", "single1"]]], pack_operations)
 
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    def test_plan_pack_operations_creates_a_single_op(self):
 
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        packs = self.get_packs()
 
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        existing_packs = [(50, 'a'), (40, 'b'), (30, 'c'), (10, 'd'),
 
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                          (10, 'e'), (6, 'f'), (4, 'g')]
 
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        # rev count 150 -> 1x100 and 5x10
 
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        # The two size 10 packs do not need to be touched. The 50, 40, 30 would
 
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        # be combined into a single 120 size pack, and the 6 & 4 would
 
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        # becombined into a size 10 pack. However, if we have to rewrite them,
 
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        # we save a pack file with no increased I/O by putting them into the
 
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        # same file.
 
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        distribution = packs.pack_distribution(150)
 
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        pack_operations = packs.plan_autopack_combinations(existing_packs,
 
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                                                           distribution)
 
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        self.assertEqual([[130, ['a', 'b', 'c', 'f', 'g']]], pack_operations)
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    def test_all_packs_none(self):
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        format = self.get_format()