piperize/flake.nix at main · AfkaraLP/piperize · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
{
  description = "A Nix-flake-based Rust development environment";

  inputs = {
    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1"; # unstable Nixpkgs
    fenix = {
      url = "https://flakehub.com/f/nix-community/fenix/0.1";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, ... }@inputs:

    let
      supportedSystems =
        [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forEachSupportedSystem = f:
        inputs.nixpkgs.lib.genAttrs supportedSystems (system:
          f {
            pkgs = import inputs.nixpkgs {
              inherit system;
              overlays = [ inputs.self.overlays.default ];
            };
          });
    in {
      overlays.default = final: prev: {
        rustToolchain =
          with inputs.fenix.packages.${prev.stdenv.hostPlatform.system};
          combine (with stable; [ clippy rustc cargo rustfmt rust-src ]);
      };

      devShells = forEachSupportedSystem ({ pkgs }: {
        default = pkgs.mkShell {
          packages = with pkgs; [
            rustToolchain
            openssl
            pkg-config
            cargo-deny
            cargo-edit
            cargo-watch
            cargo-expand
            rust-analyzer
          ];

          env = {
            # Required by rust-analyzer
            RUST_SRC_PATH =
              "${pkgs.rustToolchain}/lib/rustlib/src/rust/library";
          };
        };
      });
    };
}