elm2nix-0.5.0: data/default.nix

{
  nixpkgs ? <nixpkgs>,
  config ? { },
}:

with (import nixpkgs config);

let
  mkDerivation =
    {
      srcs ? ./elm-srcs.nix,
      src,
      name,
      srcdir ? "./src",
      targets ? [ ],
      registryDat ? ./registry.dat,
      outputJavaScript ? false,
    }:
    stdenv.mkDerivation {
      inherit name src;

      buildInputs = [ elmPackages.elm ] ++ lib.optional outputJavaScript nodePackages.uglify-js;

      buildPhase = pkgs.elmPackages.fetchElmDeps {
        elmPackages = import srcs;
        elmVersion = "0.19.1";
        inherit registryDat;
      };

      installPhase =
        let
          elmfile = module: "\${srcdir}/\${builtins.replaceStrings [ "." ] [ "/" ] module}.elm";
          extension = if outputJavaScript then "js" else "html";
        in
        ''
          mkdir -p \$out/share/doc
          \${lib.concatStrings (
            map (module: ''
              echo "compiling \${elmfile module}"
              elm make \${elmfile module} --output \$out/\${module}.\${extension} --docs \$out/share/doc/\${module}.json
              \${lib.optionalString outputJavaScript ''
                echo "minifying \${elmfile module}"
                uglifyjs \$out/\${module}.\${extension} --compress 'pure_funcs="F2,F3,F4,F5,F6,F7,F8,F9,A2,A3,A4,A5,A6,A7,A8,A9",pure_getters,keep_fargs=false,unsafe_comps,unsafe' \\
                    | uglifyjs --mangle --output \$out/\${module}.min.\${extension}
              ''}
            '') targets
          )}
        '';
    };
in
mkDerivation {
  name = "${name}";
  srcs = ./elm-srcs.nix;
  src = ./.;
  targets = [ "Main" ];
  srcdir = "${srcdir}";
  outputJavaScript = false;
}