Summary:
We want to migrate the tests to run using treemanifest. As part of
that, we want to first transition to using treemanifest without actually
changing the hash, so we can check that the tests still work first, then update
the hashes second.
This diff adds the flatcompat mode and enables it by default. A future diff will
start enabling treemanifest for existing tests.
Reviewed By: quark-zju
Differential Revision: D15030252
fbshipit-source-id: 06c82be749282d62f1d9cfb43246695c427f8165
Summary:
`treemanifest._generatepackstream` truncates the list of possible base
manifests to length 2, because `cstore.treemanifest.walksubdirtrees` can only
support two base trees to compare against. However, it does this too soon, we
can select a different 2 base manifests for each comparison out of the possible
pool.
Reviewed By: quark-zju
Differential Revision: D9788298
fbshipit-source-id: 4ba8753ccc34e09563bebdf90602211a999a02ea
Summary:
This test arranges it so that `treemanifest._generatepackstream` is called with
three possible base manifests, each of which is appropriate for a different
commit. Because this function truncates the list of candidate base manifests
too soon, we end up with too much data in the bundle.
Reviewed By: quark-zju
Differential Revision: D9788299
fbshipit-source-id: 2147a63108e11750083862abc73c386867549ba2
