Nix-Vibe public snapshot (squashed history)

2026-09-19 13:54:34 +01:00
commit cff83a473b
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+# Wallpaper-driven Material-You theming (matugen) for the QuickShell shell.
+# `qs-theme <wallpaper>` regenerates:
+#   - ~/.cache/quickshell/theme.json  → live-repaints the bar (FileView watcher)
+#   - ~/.config/kitty/colors.conf     → kitty palette + ANSI 16
+# The Nix-declared colors.conf symlink is restored on the next home-manager
+# rebuild; until then the generated palette wins (see the rm in qs-theme).
+{
+  config,
+  pkgs,
+  ...
+}:
+{
+  home.packages = [ pkgs.matugen ];
+
+  # Default matugen config — renders our two templates on every run.
+  xdg.configFile."matugen/config.toml".text = ''
+    [config]
+
+    [templates.quick-shell]
+    input_path = "${config.home.homeDirectory}/.config/matugen/themes/theme.json.template"
+    output_path = "${config.home.homeDirectory}/.cache/quickshell/theme.json"
+
+    [templates.kitty]
+    input_path = "${config.home.homeDirectory}/.config/matugen/themes/kitty-colors.conf.template"
+    output_path = "${config.home.homeDirectory}/.config/kitty/colors.conf"
+  '';
+
+  # Template sources live in the repo so matugen can read them at runtime.
+  xdg.configFile."matugen/themes/theme.json.template".text =
+    builtins.readFile ./matugen-themes/theme.json.template;
+  xdg.configFile."matugen/themes/kitty-colors.conf.template".text =
+    builtins.readFile ./matugen-themes/kitty-colors.conf.template;
+
+  # qs-theme — regenerate the wallpaper palette, then repaint the live bar.
+  home.file.".local/bin/qs-theme" = {
+    executable = true;
+    text = ''
+      #!/bin/sh
+      # Regenerate the Material-You palette (QuickShell bar + kitty) from a
+      # wallpaper. The bar picks it up live via its theme.json watcher.
+      set -e
+
+      if [ "$#" -lt 1 ]; then
+        echo "usage: qs-theme <wallpaper>" >&2
+        exit 1
+      fi
+
+      # matugen refuses to overwrite the Nix-declared symlink; unlink it first
+      # (home-manager restores it on the next rebuild).
+      rm -f "$HOME/.config/kitty/colors.conf"
+
+      exec ${pkgs.matugen}/bin/matugen image "$1" -m dark --prefer darkness
+    '';
+  };
+}