1 files changed, 63 insertions, 0 deletions
diff --git a/users/wpcarro/website/sandbox/learnpianochords/default.nix b/users/wpcarro/website/sandbox/learnpianochords/default.nix
new file mode 100644
index 000000000000..7cfdf7c45137
--- /dev/null
+++ b/users/wpcarro/website/sandbox/learnpianochords/default.nix
@@ -0,0 +1,63 @@
+{ pkgs, ... }:
+
+with pkgs;
+
+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 = 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)}
+        '';
+    };
+  mainDotElm = mkDerivation {
+    name = "elm-app-0.1.0";
+    srcs = ./elm-srcs.nix;
+    src = builtins.path { path = ./.; name = "learnpianochords"; };
+    targets = [ "Main" ];
+    srcdir = "./src";
+    outputJavaScript = true;
+  };
+in
+stdenv.mkDerivation {
+  name = "learn-piano-chords";
+  buildInputs = [ ];
+  src = builtins.path { path = ./.; name = "learnpianochords"; };
+  buildPhase = ''
+    mkdir -p $out
+    cp index.html output.css ${mainDotElm}/Main.min.js $out
+  '';
+  dontInstall = true;
+}