dolthub--dolt

For each Dolt release version listed in test_files/backward_compatible_versions.txt, a legacy repository is created using the corresponding release and populated with data from test_files/setup_repo.sh. Then, using a Dolt client build at HEAD, a series of BATS tests are run against each legacy repository.

To test forward compatibility, a repository is created and populated using Dolt built at HEAD. For each Dolt release version listed in test_files/forward_compatible_versions.txt, the same BATS tests are run against the repo created with Dolt at HEAD.

Then there is a third set of tests that test bidirectional compatibility, whether older and current clients can alternate doing writes on the same DB withut anything breaking. These tests do their own initialization and don't rely on the setup_repo.sh. Forward compatibility is the limiting factor for these tests (fewer versions are forward compatible at any given time), so that's the versions we do bidirectional testing against.