Before the changes intorducing the new wasmtime bindings we relied
on an downloaded static library libwasmtime.a. Now that the bindings
are introduced, we do not rely on it anymore, so all references to
it can be removed.
* Update Nixpkgs base
* Clarify some comments
* Get rid of custom-packaged cxxbridge (it's now present in Nixpkgs as
cxx-rs)
* Add missing libraries (libdeflate, libxcrypt)
* Fix expected hash of the gdb patch
* Bump Python driver to 3.25.20-scylla
Fixes#12259
* Add some more useful stuff to the shell environment, so it actually
works for debugging & post-mortem analysis.
* Wrap ccache & distcc transparently (distcc will be used unless
NODISTCC is set to a non-empty value in the environment; ccache will
be used if CCACHE_DIR is not empty).
* Package the Scylla Python driver (instead of the C* one).
* Catch up to misc build/test requirements (including optional) by
requiring or custom-packaging: wasmtime 0.29.0, cxxbridge,
pytest-asyncio, liburing.
* Build statically-linked zstd in a saner and more idiomatic fashion.
* In pure builds (where sources lack Git metadata), derive
SCYLLA_RELEASE from source hash.
* Refactor things for more parameterization.
* Explicitly stub out installPhase (seeing that "nix build" succeeds
up to installPhase means we didn't miss any dependencies).
* Add flake support.
* Add copious comments.
Signed-off-by: Michael Livshin <michael.livshin@scylladb.com>
