flake-fonts/flake.nix

# vim: set et sw=2 ts=2 sts=2:
{
  description = "fonts";
  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05-small;
  outputs = { self, nixpkgs }: 
    let
      allSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
      forAllSystems = f: (nixpkgs.lib.genAttrs allSystems (system: f {
        pkgs = import nixpkgs { inherit system; };
      }));
    in rec {
      lib = forAllSystems ({pkgs}: 
        with pkgs;
        let
          fetchfont        = callPackage ./fetchfont.nix        { pkgs = pkgs // { inherit sfnt2woff-zopfli; }; };
        in
        { inherit fetchfont; }
      );
      defaultPackage = forAllSystems ({pkgs}:
        with pkgs;
        let
          sfnt2woff-zopfli = callPackage ./sfnt2woff-zopfli.nix {};
          fetchfont        = callPackage ./fetchfont.nix        { pkgs = pkgs // { inherit sfnt2woff-zopfli; }; };
          fonts            = callPackage ./fonts.nix            { fetchfont = fetchfont; };
          default          = callPackage ./collection.nix       { fonts = fonts; };
        in
          default
      );
      packages = forAllSystems ({pkgs}:
        with pkgs;
        let
          sfnt2woff-zopfli = callPackage ./sfnt2woff-zopfli.nix {};
          fetchfont        = callPackage ./fetchfont.nix        { pkgs = pkgs // { inherit sfnt2woff-zopfli; }; };
          fonts            = callPackage ./fonts.nix            { fetchfont = fetchfont; };
          default          = callPackage ./collection.nix       { fonts = fonts; };
        in
          fonts // { inherit sfnt2woff-zopfli default; }
      );
      devShell = forAllSystems ({pkgs}:
        pkgs.mkShell {
          name = "fonts-dev";
          nativeBuildInputs = [ packages.${pkgs.system}.sfnt2woff-zopfli pkgs.woff2 ];
        }
      );
    };
}