added stuff

nyx/lib/helpers/themes.nix

@@ -0,0 +1,21 @@
+{lib}: let
+  # function to generate theme slugs from theme names
+  # "A String With Whitespaces" -> "a-string-with-whitespaces"
+  serializeTheme = inputString: lib.strings.toLower (builtins.replaceStrings [" "] ["-"] inputString);
+
+  # a function that takes a theme name and a source file and compiles it to CSS
+  # compileSCSS "theme-name" "path/to/theme.scss" -> "$out/theme-name.css"
+  # adapted from <https://github.com/spikespaz/dotfiles>
+  compileSCSS = pkgs: {
+    name,
+    source,
+    args ? "-t expanded",
+  }: "${
+    pkgs.runCommandLocal name {} ''
+      mkdir -p $out
+      ${lib.getExe pkgs.sassc} ${args} '${source}' > $out/${name}.css
+    ''
+  }/${name}.css";
+in {
+  inherit serializeTheme compileSCSS;
+}