chore(build): clean invalid JSON from theming CSS via postinstall

Author: NHristov-sap

package.json

@@ -66,7 +66,7 @@
     "prepare": "husky install",
     "husky:commit-msg": "commitlint -e",
     "husky:pre-push": "npm-run-all --sequential husky:commit-msg",
-    "postinstall": "patch-package"
+    "postinstall": "node scripts/clean-theming-css.cjs"
   },
   "devDependencies": {
     "@commitlint/cli": "^16.2.3",

scripts/clean-theming-css.cjs

@@ -0,0 +1,19 @@
+const fs = require("fs");
+const path = require("path");
+const glob = require("glob");
+
+// Pattern to match CSS variable definitions with JSON objects
+const invalidLinePattern = /--sapThemeMetaData-[^:]+:\{[^;]+};/g;
+
+// Find all matching CSS files
+const cssFiles = glob.sync("node_modules/@sap-theming/theming-base-content/content/Base/baseLib/*/css_variables.css");
+
+cssFiles.forEach(file => {
+  let content = fs.readFileSync(file, "utf8");
+  // Remove all invalid lines
+  const cleaned = content.replace(invalidLinePattern, "");
+  if (content !== cleaned) {
+    fs.writeFileSync(file, cleaned, "utf8");
+    console.log(`Cleaned: ${file}`);
+  }
+});