shell/flake.nix at master · OfficialSirH/shell · GitHub

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{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      fenix,
    }:
    let
      systems = [
        "x86_64-linux"
        "aarch64-linux"
      ];

      forAllSystems =
        f:
        nixpkgs.lib.genAttrs systems (
          system:
          f {
            pkgs = import nixpkgs {
              inherit system;
              overlays = [ self.overlays.default ];
            };
          }
        );

    in
    {
      overlays.default = final: prev: {
        rustToolchain =
          with fenix.packages.${prev.stdenv.hostPlatform.system};
          combine (
            (with latest; [
              clippy
              rustc
              cargo
              rust-src
              rust-analyzer
            ])
            ++ [ latest.rustfmt ]
          );
      };

      packages = forAllSystems (
        { pkgs }:
        {
          default =
            (pkgs.makeRustPlatform {
              cargo = pkgs.rustToolchain;
              rustc = pkgs.rustToolchain;
            }).buildRustPackage
              {
                pname = "codecrafters-shell-rust";
                version = "0.0.1";
                src = ./.;
                cargoLock.lockFile = ./Cargo.lock;

                buildInputs = with pkgs; [
                  gcc.cc.lib
                ];

                LD_LIBRARY_PATH = "${pkgs.lib.makeLibraryPath (with pkgs; [ gcc.cc.lib ])}:$LD_LIBRARY_PATH";
              };
        }
      );

      devShells = forAllSystems (
        { pkgs }:
        {
          default = pkgs.mkShell {
            packages = with pkgs; [
              rustToolchain
              pkg-config
              cargo-deny
              cargo-edit
              cargo-semver-checks
              cargo-watch
              cargo-show-asm
              bacon
              codecrafters-cli
];

            buildInputs = with pkgs; [
              gcc.cc.lib
            ];

            LD_LIBRARY_PATH = "${pkgs.lib.makeLibraryPath (with pkgs; [ gcc.cc.lib ])}:$LD_LIBRARY_PATH";
            RUST_SRC_PATH = "${pkgs.rustToolchain}/lib/rustlib/src/rust/library";
          };
        }
      );
    };
}