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Merge pull request #2693 from coreos-inc/gc-query-opt

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Optimize GC query join a bit by reducing the surface
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josephschorr 2017-06-12 13:37:55 -04:00 • committed by GitHub
commit 4fd2047e30
2 changed files with 43 additions and 6 deletions
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33
test/test_gc.py
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@ -314,38 +314,71 @@ class TestGarbageCollection(unittest.TestCase):
repository = self.createRepository(latest=['i1', 'i2', 'i3'], other=['i1', 'f1', 'f2'],
third=['t1', 't2', 't3'], fourth=['i1', 'f1'])
# Current state:
# latest -> i3->i2->i1
# other -> f2->f1->i1
# third -> t3->t2->t1
# fourth -> f1->i1
# Delete tag other. Should delete f2, since it is not shared.
self.deleteTag(repository, 'other')
self.assertDeleted(repository, 'f2')
self.assertNotDeleted(repository, 'i1', 'i2', 'i3', 't1', 't2', 't3', 'f1')
# Current state:
# latest -> i3->i2->i1
# third -> t3->t2->t1
# fourth -> f1->i1
# Move tag fourth to i3. This should remove f1 since it is no longer referenced.
self.moveTag(repository, 'fourth', 'i3')
self.assertDeleted(repository, 'f1')
self.assertNotDeleted(repository, 'i1', 'i2', 'i3', 't1', 't2', 't3')
# Current state:
# latest -> i3->i2->i1
# third -> t3->t2->t1
# fourth -> i3->i2->i1
# Delete tag 'latest'. This should do nothing since fourth is on the same branch.
self.deleteTag(repository, 'latest')
self.assertNotDeleted(repository, 'i1', 'i2', 'i3', 't1', 't2', 't3')
# Current state:
# third -> t3->t2->t1
# fourth -> i3->i2->i1
# Delete tag 'third'. This should remove t1->t3.
self.deleteTag(repository, 'third')
self.assertDeleted(repository, 't1', 't2', 't3')
self.assertNotDeleted(repository, 'i1', 'i2', 'i3')
# Current state:
# fourth -> i3->i2->i1
# Add tag to i1.
self.moveTag(repository, 'newtag', 'i1')
self.assertNotDeleted(repository, 'i1', 'i2', 'i3')
# Current state:
# fourth -> i3->i2->i1
# newtag -> i1
# Delete tag 'fourth'. This should remove i2 and i3.
self.deleteTag(repository, 'fourth')
self.assertDeleted(repository, 'i2', 'i3')
self.assertNotDeleted(repository, 'i1')
# Current state:
# newtag -> i1
# Delete tag 'newtag'. This should remove the remaining image.
self.deleteTag(repository, 'newtag')
self.assertDeleted(repository, 'i1')
# Current state:
# (Empty)
def test_empty_gc(self):
with self.assert_gc_integrity(expect_storage_removed=False):
repository = self.createRepository(latest=['i1', 'i2', 'i3'], other=['i1', 'f1', 'f2'],