nix: add derivations to build and use dolly generator

Signed-off-by: oppiliappan <[e-mail]>

flake.nix

···
         spindle = self.callPackage ./nix/pkgs/spindle.nix {};
         knot-unwrapped = self.callPackage ./nix/pkgs/knot-unwrapped.nix {};
         knot = self.callPackage ./nix/pkgs/knot.nix {};
+        dolly = self.callPackage ./nix/pkgs/dolly.nix {};
       });
   in {
     overlays.default = final: prev: {
-      inherit (mkPackageSet final) lexgen goat sqlite-lib spindle knot-unwrapped knot appview docs;
+      inherit (mkPackageSet final) lexgen goat sqlite-lib spindle knot-unwrapped knot appview docs dolly;
     };
 
     packages = forAllSystems (system: let
···
       staticPackages = mkPackageSet pkgs.pkgsStatic;
       crossPackages = mkPackageSet pkgs.pkgsCross.gnu64.pkgsStatic;
     in {
-      inherit (packages) appview appview-static-files lexgen goat spindle knot knot-unwrapped sqlite-lib docs;
+      inherit
+        (packages)
+        appview
+        appview-static-files
+        lexgen
+        goat
+        spindle
+        knot
+        knot-unwrapped
+        sqlite-lib
+        docs
+        dolly
+        ;
 
       pkgsStatic-appview = staticPackages.appview;
       pkgsStatic-knot = staticPackages.knot;
       pkgsStatic-knot-unwrapped = staticPackages.knot-unwrapped;
       pkgsStatic-spindle = staticPackages.spindle;
       pkgsStatic-sqlite-lib = staticPackages.sqlite-lib;
+      pkgsStatic-dolly = staticPackages.dolly;
 
       pkgsCross-gnu64-pkgsStatic-appview = crossPackages.appview;
       pkgsCross-gnu64-pkgsStatic-knot = crossPackages.knot;
       pkgsCross-gnu64-pkgsStatic-knot-unwrapped = crossPackages.knot-unwrapped;
       pkgsCross-gnu64-pkgsStatic-spindle = crossPackages.spindle;
+      pkgsCross-gnu64-pkgsStatic-dolly = crossPackages.dolly;
 
       treefmt-wrapper = pkgs.treefmt.withConfig {
         settings.formatter = {

nix/pkgs/appview-static-files.nix

···
   actor-typeahead-src,
   sqlite-lib,
   tailwindcss,
+  dolly,
   src,
 }:
 runCommandLocal "appview-static-files" {
···
     (allow file-read* (subpath "/System/Library/OpenSSL"))
   '';
 } ''
-  mkdir -p $out/{fonts,icons} && cd $out
+  mkdir -p $out/{fonts,icons,logos} && cd $out
   cp -f ${htmx-src} htmx.min.js
   cp -f ${htmx-ws-src} htmx-ext-ws.min.js
   cp -rf ${lucide-src}/*.svg icons/
···
   cp -f ${inter-fonts-src}/InterVariable*.ttf fonts/
   cp -f ${ibm-plex-mono-src}/fonts/complete/woff2/IBMPlexMono*.woff2 fonts/
   cp -f ${actor-typeahead-src}/actor-typeahead.js .
+
+  ${dolly}/bin/dolly -output logos/dolly.png -size 180x180
+  ${dolly}/bin/dolly -output logos/dolly.ico -size 48x48
+  ${dolly}/bin/dolly -output logos/dolly.svg
   # tailwindcss -c $src/tailwind.config.js -i $src/input.css -o tw.css won't work
   # for whatever reason (produces broken css), so we are doing this instead
   cd ${src} && ${tailwindcss}/bin/tailwindcss -i input.css -o $out/tw.css

nix/pkgs/dolly.nix

···
+{
+  buildGoApplication,
+  modules,
+  src,
+}:
+buildGoApplication {
+  pname = "dolly";
+  version = "0.1.0";
+  inherit src modules;
+
+  # patch the static dir
+  postUnpack = ''
+    pushd source
+    mkdir -p appview/pages/static
+    touch appview/pages/static/x
+    popd
+  '';
+
+  doCheck = false;
+  subPackages = ["cmd/dolly"];
+}