this enables faster incremental rebuilds in nix. it also allows us to
add clippy and cargo test checks more easily. aside from that, i have
tried to carry over things that i think are sensible from the previous
`mkDerivation` call.
the `checkPhase` may as well rather be done in a `installCheckPhase` and
we can set `enableParallelBuilding` to speed up the compilation of
`libbcachefs.a`.
with this, the gh actions ci will fail if submitted code does not adhere
to rustfmt rules.
additionally, running `nix fmt` will also format rust code.
because we want rules only supported by nightly rustfmt, and nixpkgs
doesn't have a nightly toolchain, we need to pull in another flake
input: fenix.
currently still bare but can be extended with a number of different
formatters (rustfmt, clang-format, ...). For full list see
https://flake.parts/options/treefmt-nix
Signed-off-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>
it also provides a way for abstracting `system` and provides optional
modules, like treefmt-nix.
Signed-off-by: Thomas Mühlbacher <tmuehlbacher@posteo.net>
Adds overlay flake output to expose the bcachefs package
and add and run a nix formatter.
Co-authored-by: Leona Maroni <dev@leona.is>
Signed-off-by: Leona Maroni <dev@leona.is>
Signed-off-by: Finn Behrens <me@kloenk.de>
