dpckt/flake.nix at dev · notxorand/dpckt · GitHub

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{
  description = "zig";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    zig-overlay.url = "github:mitchellh/zig-overlay";
    zig-overlay.inputs.nixpkgs.follows = "nixpkgs";

    zls-0-13.url = "github:zigtools/zls/0.13.0";
    zls-0-13.inputs.nixpkgs.follows = "nixpkgs";
    zls-0-14.url = "github:zigtools/zls/0.14.0";
    zls-0-14.inputs.nixpkgs.follows = "nixpkgs";
    zls-0-15.url = "github:zigtools/zls/0.15.1";
    zls-0-15.inputs.nixpkgs.follows = "nixpkgs";
    zls-0-16.url = "github:zigtools/zls/0.16.0";
    zls-0-16.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = { self, nixpkgs, flake-utils, zig-overlay
            , zls-0-13, zls-0-14, zls-0-15, zls-0-16 }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ zig-overlay.overlays.default ];
        };

        zig = {
          "0.13.0" = pkgs.zigpkgs."0.13.0";
          "0.14.0" = pkgs.zigpkgs."0.14.0";
          "0.15.2" = pkgs.zigpkgs."0.15.2";
          "0.16.0" = pkgs.zigpkgs."0.16.0";
          master   = pkgs.zigpkgs.master;
        };

        zls = {
          "0.13.0" = zls-0-13.packages.${system}.zls;
          "0.14.0" = zls-0-14.packages.${system}.zls;
          "0.15.2" = zls-0-15.packages.${system}.zls;
          "0.16.0" = zls-0-16.packages.${system}.zls;
        };

        mkZigShell = v: pkgs.mkShell {
          buildInputs = [ zig.${v} ];
        };

        mkLspShell = v: pkgs.mkShell {
          buildInputs = [ zig.${v} zls.${v} ];
        };

      in {
        devShells = {
          default  = mkZigShell "0.16.0";
          "0.13.0" = mkZigShell "0.13.0";
          "0.14.0" = mkZigShell "0.14.0";
          "0.15.2" = mkZigShell "0.15.2";
          "0.16.0" = mkZigShell "0.16.0";
          master   = mkZigShell "master"; # no matching zls for master

          lsp         = mkLspShell "0.16.0";
          "lsp-0.13"  = mkLspShell "0.13.0";
          "lsp-0.14"  = mkLspShell "0.14.0";
          "lsp-0.15"  = mkLspShell "0.15.2";
        };
      }
    );
}