dix 1.3.0

Diff Nix
Documentation 
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{
  description = "Dix - Diff Nix";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    systems.url = "github:nix-systems/default";

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

  outputs = inputs @ {
    self,
    nixpkgs,
    systems,
    ...
  }: let
    inherit (nixpkgs) lib;

    eachSystem = lib.genAttrs (import systems);
    pkgsFor = eachSystem (system:
      import nixpkgs {
        localSystem.system = system;
      });
  in {
    packages =
      lib.mapAttrs (system: pkgs: let
        fs = lib.fileset;

        src = fs.difference (fs.gitTracked ./.) (fs.unions [
          ./.envrc
          ./.rustfmt.toml
          ./flake.lock
          (fs.fileFilter (file: lib.strings.hasInfix ".git" file.name) ./.)
          (fs.fileFilter (file: file.hasExt "md") ./.)
          (fs.fileFilter (file: file.hasExt "nix") ./.)
        ]);
      in {
        default = self.packages.${system}.dix;

        dix = pkgs.rustPlatform.buildRustPackage {
          name = "dix";

          src = fs.toSource {
            root = ./.;
            fileset = src;
          };

          cargoLock = {
            lockFile = ./Cargo.lock;
            allowBuiltinFetchGit = true;
          };

          buildType = "release";

          doCheck = false;
          strictDeps = true;
        };
      })
      pkgsFor;

    devShells =
      lib.mapAttrs (system: pkgs: {
        default = self.devShells.${system}.dix;

        dix = pkgs.mkShell {
          packages = with pkgs; [
            # A nice compiler daemon.
            bacon
            # Better tests.
            cargo-nextest
            # TOML formatting.
            taplo

            (inputs.fenix.packages.${system}.combine (
              with inputs.fenix.packages.${system}; [
                stable.cargo
                stable.clippy
                stable.rust-analyzer
                stable.rustc

                # nightly rustfmt for better formatting
                default.rustfmt
              ]
            ))
          ];

          env.RUST_SRC_PATH = pkgs.rustPlatform.rustLibSrc;
        };
      })
      pkgsFor;
  };
}