tokyo-night-gtk: refactor and default to tokyo-night-gtk-variants.full

This allows us to specify which icons/themes we want instead of keeping 100k+ files

pkgs/data/themes/tokyo-night-gtk/default.nix

@@ -1,38 +1,38 @@
 { lib
-, stdenvNoCC
-, fetchFromGitHub
+, callPackage
+, runCommand
 , gtk-engine-murrine
+, gnome-themes-extra
 }:
 
-stdenvNoCC.mkDerivation {
-  pname = "tokyo-night-gtk";
-  version = "unstable-2023-05-30";
+let
+  prefix = "tokyo-night-gtk";
 
-  src = fetchFromGitHub {
-    owner = "Fausto-Korpsvart";
-    repo = "Tokyo-Night-GTK-Theme";
-    rev = "e9790345a6231cd6001f1356d578883fac52233a";
-    hash = "sha256-Q9UnvmX+GpvqSmTwdjU4hsEsYhA887wPqs5pyqbIhmc=";
-  };
+  packages = lib.mapAttrs' (type: content: {
+    name = type;
 
-  propagatedUserEnvPkgs = [
-    gtk-engine-murrine
-  ];
+    value = lib.mapAttrs' (variantName: variant: {
+      name = variantName;
+      value = callPackage ./generic.nix { inherit prefix type variantName variant; };
+    }) content;
+  }) (lib.importJSON ./variants.json);
+in packages // {
+  # Not using `symlinkJoin` because it's massively inefficient in this case
+  full = runCommand "${prefix}_full" {
+    preferLocalBuild = true;
 
-  dontBuild = true;
+    propagatedUserEnvPkgs = [
+      gtk-engine-murrine
+      gnome-themes-extra
+    ];
+  } ''
+    mkdir -p $out/share/{icons,themes,${prefix}}
 
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $out/share/themes
-    cp -a themes/* $out/share/themes
-    runHook postInstall
+    ${lib.concatStrings (lib.forEach (lib.attrValues (lib.attrsets.mergeAttrsList (lib.attrValues packages))) (variant:
+      ''
+        ln -s ${variant}/share/${variant.ptype}/Tokyonight-${variant.pvariant} $out/share/${variant.ptype}/Tokyonight-${variant.pvariant}
+        ln -s ${variant}/share/${prefix}/LICENSE $out/share/${prefix}/LICENSE 2>/dev/null || true
+      ''
+    ))}
   '';
-
-  meta = with lib; {
-    description = "A GTK theme based on the Tokyo Night colour palette.";
-    homepage = "www.pling.com/p/1681315/";
-    license = licenses.gpl3Only;
-    platforms = platforms.unix;
-    maintainers = with lib.maintainers; [ garaiza-93 ];
-  };
 }

pkgs/data/themes/tokyo-night-gtk/generic.nix

@@ -0,0 +1,77 @@
+{ lib
+, stdenvNoCC
+, fetchFromGitHub
+, writeScript
+, gtk-engine-murrine
+, gnome-themes-extra
+, prefix ? ""
+, type ? ""
+, variantName ? ""
+, variant ? ""
+}:
+
+stdenvNoCC.mkDerivation (finalAttrs: {
+  pname = "${prefix}_${type}-${variantName}";
+  version = "unstable-2023-05-30";
+
+  src = fetchFromGitHub {
+    owner = "Fausto-Korpsvart";
+    repo = "Tokyo-Night-GTK-Theme";
+    rev = "e9790345a6231cd6001f1356d578883fac52233a";
+    hash = "sha256-Q9UnvmX+GpvqSmTwdjU4hsEsYhA887wPqs5pyqbIhmc=";
+  };
+
+  propagatedUserEnvPkgs = [
+    gtk-engine-murrine
+    gnome-themes-extra
+  ];
+
+  dontPatch = true;
+  dontConfigure = true;
+  dontBuild = true;
+  dontFixup = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/{${type},${prefix}}
+    cp -a ${type}/Tokyonight-${variant} $out/share/${type}
+    cp -a LICENSE $out/share/${prefix}
+
+    runHook postInstall
+  '';
+
+  passthru = {
+    updateScript = writeScript "update.sh" ''
+      #!/usr/bin/env nix-shell
+      #!nix-shell -i bash -p curl common-updater-scripts tree jq
+      res="$(curl ''${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} \
+        -sL "https://api.github.com/repos/${finalAttrs.src.owner}/${finalAttrs.src.repo}/commits/HEAD")"
+
+      rev="$(echo $res | jq '.sha' --raw-output)"
+      version="unstable-$(echo $res | jq '.commit | .author | .date' --raw-output | sed 's/T.*$//')"
+      update-source-version ${prefix}-variants.${type}.${variantName} "$version" "$rev" --ignore-same-hash
+
+      commonjq1='.[] .contents .[] | {(.name): .name} | walk(if type=="object" then with_entries(.key|=ascii_downcase) else . end)'
+      commonjq2='reduce inputs as $in (.; . + $in)'
+      commontree="-dJ -L 1 --noreport ${finalAttrs.src}"
+
+      echo $(tree $commontree/icons | jq "$commonjq1" | jq "$commonjq2" | jq '{icons: .}') \
+        $(tree $commontree/themes | jq "$commonjq1" | jq "$commonjq2" | jq '{themes: .}') | \
+        jq 'reduce inputs as $in (.; . + $in)' | sed "s/[tT]okyonight-//g" > \
+        "$(git rev-parse --show-toplevel)/pkgs/data/themes/${prefix}/variants.json"
+    '';
+
+    # For "full" in default.nix
+    ptype = type;
+    pvariant = variant;
+  };
+
+  meta = with lib; {
+    description = "A GTK theme based on the Tokyo Night colour palette";
+    homepage = "https://www.pling.com/p/1681315";
+    license = licenses.gpl3Only;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ garaiza-93 Madouura ];
+  };
+})

pkgs/data/themes/tokyo-night-gtk/variants.json

@@ -0,0 +1,18 @@
+{
+  "icons": {
+    "dark": "Dark",
+    "dark-cyan": "Dark-Cyan",
+    "light": "Light",
+    "moon": "Moon"
+  },
+  "themes": {
+    "dark-b": "Dark-B",
+    "dark-bl": "Dark-BL",
+    "dark-b-lb": "Dark-B-LB",
+    "dark-bl-lb": "Dark-BL-LB",
+    "storm-b": "Storm-B",
+    "storm-bl": "Storm-BL",
+    "storm-b-lb": "Storm-B-LB",
+    "storm-bl-lb": "Storm-BL-LB"
+  }
+}

pkgs/top-level/all-packages.nix

@@ -35884,7 +35884,9 @@ with pkgs;
 
   tofi = callPackage ../applications/misc/tofi { };
 
-  tokyo-night-gtk = callPackage ../data/themes/tokyo-night-gtk { };
+  tokyo-night-gtk = tokyo-night-gtk-variants.full;
+
+  tokyo-night-gtk-variants = recurseIntoAttrs (callPackage ../data/themes/tokyo-night-gtk { });
 
   topydo = callPackage ../applications/misc/topydo { };