It will be used by the storage_checker to 'remember' what ranges
it already checked recently across runs (and crashes), and to
monitor progress.

It will probably be useful to know what part of the check
takes the most time.

This will allow adding more tags easily in future commits

instead of (soon-to-be-deprecated) swh-core's postgresql_fact one.

This alleviates current locking issues where nothing gets written in production.

Related to T4228

Related to T4228

so migration tool can be used

Related to T4284

We migrated away from "local" a while back.

Related to T4228

Related to T4228

Related to T4228

The case where the datastore already exists was masked by @functools.lru_cache,
which persists for the lifetime of a test, causing the function not to be
actually called twice.

Related to T3922

black is considered stable since release 22.1.0 and the version
we are currently using is quite outdated and not compatible with
click 8.1.0, so it is time to bump it to its latest stable release.

Please note that E501 pycodestyle warning related to line length
is replaced by B950 one from flake8-bugbear as recommended by black.
https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#line-length

Related to T3922

This is heavily inspired by https://archive.softwareheritage.org/swh:1:cnt:c6dda7698c6aecf71f744e4e4c01bc3e115db880;origin=https://forge.softwareheritage.org/source/snippets.git;visit=swh:1:snp:c2e3170b9927f3d356e120546b00f5a9d25a224c;anchor=swh:1:rev:fa9e387ba5e3470b93a5c5a8773ed598ef03d211;path=/vlorentz/analyze_consistency_failures.py
but reorganized to the database instead of ad-hoc text and pickle files.

Currently, this only implements recovering from Git origins.

pytest-postgresql 3.1.3 and pytest-redis 2.4.0 added support for
pytest >= 7 so we can now drop the pytest pinning.

as well as the run() method.

For consistency with a future module called fixer.py

Due to test modules being copied in subdirectories of the
build directory by setuptools, it makes pytest fail by raising
ImportPathMismatchError exceptions when invoked from root
directory of the module.

So ignore the build folder to discover tests.