{
description = "Flake for Trellis";
inputs = {
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
crane = {
url = "github:ipetkov/crane";
inputs.nixpkgs.follows = "nixpkgs";
};
fenix = {
url = "github:nix-community/fenix";
inputs.nixpkgs.follows = "nixpkgs";
};
flake-utils.url = "github:numtide/flake-utils";
advisory-db = {
url = "github:rustsec/advisory-db";
flake = false;
};
};
outputs =
{
self,
nixpkgs,
crane,
fenix,
flake-utils,
advisory-db,
...
}:
flake-utils.lib.eachDefaultSystem (
system:
let
pkgs = import nixpkgs {
inherit system;
config.allowUnfree = true;
};
fenix-pkgs = fenix.packages.${system};
inherit (pkgs) lib;
craneLib = (crane.mkLib pkgs).overrideToolchain fenix-pkgs.latest.toolchain;
src = craneLib.cleanCargoSource ./.;
# Common arguments can be set here to avoid repeating them later
commonArgs = {
inherit src;
strictDeps = true;
buildInputs =
with pkgs;
[
# gfortran
# (lib.getLib gfortran.cc)
# openblas
# openssl
# cpp-netlib
# Add additional build inputs here
]
++ lib.optionals stdenv.isDarwin [
# Additional darwin specific inputs can be set here
libiconv
# darwin.apple_sdk.frameworks.Security
];
# Additional environment variables can be set directly
# MY_CUSTOM_VAR = "some value";
};
craneLibLLvmTools = craneLib.overrideToolchain (
fenix.packages.${system}.complete.withComponents [
"cargo"
"llvm-tools"
"rustc"
]
);
# Build *just* the cargo dependencies, so we can reuse
# all of that work (e.g. via cachix) when running in CI
cargoArtifacts = craneLib.buildDepsOnly commonArgs;
# Build the actual crate itself, reusing the dependency
# artifacts from above.
calibrate = craneLib.buildPackage (
commonArgs
// {
inherit cargoArtifacts;
}
);
in
{
checks = {
# Build the crate as part of `nix flake check` for convenience
inherit calibrate;
# Run clippy (and deny all warnings) on the crate source,
# again, reusing the dependency artifacts from above.
#
# Note that this is done as a separate derivation so that
# we can block the CI if there are issues here, but not
# prevent downstream consumers from building our crate by itself.
my-crate-clippy = craneLib.cargoClippy (
commonArgs
// {
inherit cargoArtifacts;
cargoClippyExtraArgs = "--all-targets -- --deny warnings";
}
);
my-crate-doc = craneLib.cargoDoc (
commonArgs
// {
inherit cargoArtifacts;
}
);
# Check formatting
my-crate-fmt = craneLib.cargoFmt {
inherit src;
};
# Audit dependencies
my-crate-audit = craneLib.cargoAudit {
inherit src advisory-db;
};
# Audit licenses
# my-crate-deny = craneLib.cargoDeny {
# inherit src;
# };
# Run tests with cargo-nextest
# Consider setting `doCheck = false` on `my-crate` if you do not want
# the tests to run twice
my-crate-nextest = craneLib.cargoNextest (
commonArgs
// {
inherit cargoArtifacts;
partitions = 1;
partitionType = "count";
}
);
my-crate-coverage = craneLib.cargoTarpaulin (
commonArgs
// {
inherit cargoArtifacts;
}
);
};
packages = {
default = calibrate;
}
// lib.optionalAttrs (!pkgs.stdenv.isDarwin) {
my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (
commonArgs
// {
inherit cargoArtifacts;
}
);
};
apps.default = flake-utils.lib.mkApp {
drv = calibrate;
};
devShells.default = craneLib.devShell {
# Inherit inputs from checks.
checks = self.checks.${system};
# Additional dev-shell environment variables can be set directly
# MY_CUSTOM_DEVELOPMENT_VAR = "something else";
# Extra inputs can be added here; cargo and rustc are provided by default.
packages = [
# pkgs.codelldb
pkgs.lldb
fenix-pkgs.rust-analyzer
pkgs.claude-code
pkgs.bashInteractive
];
shellHook = ''
export LLDB_PATH=${pkgs.lldb}/bin/lldb
export LLDB_DYLIB_PATH=${pkgs.lldb}/lib/liblldb.dylib
export RUST_ANALYZER_PATH=${fenix-pkgs.rust-analyzer}/bin/rust-alyzer
'';
};
}
);
}