Init variables script

docs/scripts/read-sass-variables.js

@@ -0,0 +1,25 @@
+module.exports = plugin;
+
+function plugin() {
+  return (files, metalsmith, done) => {
+    setImmediate(done);
+
+    Object.keys(files).forEach(file_path => {
+      const file = files[file_path];
+      const lines = file.contents.toString().split(/(?:\r\n|\r|\n)/g);
+
+      lines.forEach(line => {
+        if (line.startsWith('$') && line.endsWith('!default')) {
+          const colon_index = line.indexOf(':');
+          const variable_name = line.substring(0, colon_index).trim();
+
+          const default_index = line.indexOf('!default');
+          const variable_value = line.substring(colon_index + 1, default_index).trim();
+
+          console.log('variable_name', variable_name);
+          console.log('variable_value', variable_value);
+        }
+      });
+    });
+  };
+}