Expose color palette as attributes

.github/workflows/palette.yml

@@ -0,0 +1,55 @@
+name: Generate palette
+
+on:
+  workflow_dispatch:
+
+jobs:
+  palette:
+    name: Generate palette file
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v5
+
+      - name: Checkout repository
+        uses: actions/checkout@v5
+        with:
+          repository: catppuccin/palette
+          path: palette
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v31
+
+      - name: Install Cachix
+        uses: cachix/cachix-action@v16
+        with:
+          name: catppuccin
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+
+      - name: Convert palette to Nix file
+        run: |
+          nix run nixpkgs#nix-converter -- -f palette/palette.json >modules/palette/data.nix
+          rm -rf palette
+
+      - name: Format Nix files
+        run: nix fmt
+
+      - name: Create pull request
+        id: create-pull-request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          token: ${{ github.token }}
+          commit-message: "chore: update palette"
+          title: "chore: update palette"
+          signoff: true
+          sign-commits: true
+          branch: "update-palette"
+
+      - name: Run CI
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh workflow run ci.yml \
+            --ref ${{ steps.create-pull-request.outputs.pull-request-branch }}

modules/global.nix

@@ -46,6 +46,12 @@ in
         description = "Port sources used across all options";
       };
 
+    palette = lib.mkOption {
+      type = (import ./palette/type.nix) lib;
+      readOnly = true;
+      description = "Global Catppuccin palette";
+    };
+
     cache.enable = lib.mkEnableOption "the usage of Catppuccin's binary cache";
   };
 
@@ -54,5 +60,7 @@ in
       substituters = [ "https://catppuccin.cachix.org" ];
       trusted-public-keys = [ "catppuccin.cachix.org-1:noG/4HkbhJb+lUAdKrph6LaozJvAeEEZj4N732IysmU=" ];
     };
+
+    catppuccin.palette = (import ./palette/data.nix).${config.catppuccin.flavor};
   };
 }