{
description = "TODO";
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";
inputs.rust-analyzer-src.follows = "";
};
flake-utils.url = "github:numtide/flake-utils";
advisory-db = {
url = "github:rustsec/advisory-db";
flake = false;
};
treefmt-nix = {
url = "github:numtide/treefmt-nix";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs = {
self,
nixpkgs,
crane,
fenix,
flake-utils,
advisory-db,
treefmt-nix,
...
}:
flake-utils.lib.eachDefaultSystem (system: let
pkgs = nixpkgs.legacyPackages.${system};
inherit (pkgs) lib;
craneLib = crane.mkLib pkgs;
src = craneLib.cleanCargoSource ./.;
# Common arguments can be set here to avoid repeating them later
commonArgs = {
inherit src;
strictDeps = true;
buildInputs =
[
# Add additional build inputs here
pkgs.nixos-rebuild
pkgs.age
pkgs.ssh-to-age
]
++ lib.optionals pkgs.stdenv.isDarwin [
# Additional darwin specific inputs can be set here
pkgs.libiconv
];
# Additional environment variables can be set directly
# MY_CUSTOM_VAR = "some value";
};
craneLibLLvmTools =
craneLib.overrideToolchain
(fenix.packages.${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.
my-crate = craneLib.buildPackage (commonArgs
// {
inherit cargoArtifacts;
});
# Treefmt doesn't easily expose the programs with out its flake-parts module (as far as I can tell)
# This snipit, modified from their default.nix, lets us grab the programs after buiding with our treefmt config
treefmt-module-builder = nixpkgs: configuration: let
mod = treefmt-nix.lib.evalModule nixpkgs configuration;
in
mod.config.build;
treefmt-module = treefmt-module-builder pkgs (import ./treefmt.nix);
treefmt-bin = treefmt-module.wrapper;
treefmt-programs = lib.attrValues treefmt-module.programs;
in {
checks = {
# Build the crate as part of `nix flake check` for convenience
inherit my-crate;
# 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";
});
};
packages =
{
default = my-crate;
}
// lib.optionalAttrs (!pkgs.stdenv.isDarwin) {
my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs
// {
inherit cargoArtifacts;
});
};
apps.default = flake-utils.lib.mkApp {
drv = my-crate;
};
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 = with pkgs;
[
cargo-limit
just
bacon
cargo-dist
oranda
treefmt-bin
]
++ treefmt-programs;
};
});
}