Add a tool to add the builtin attribute to all builtin libary file wh…

…ere it's missing

tools/add_builtin.py

@@ -0,0 +1,26 @@
+import re, os
+
+# This is a temporary tool that adds "builtin: true" to all libraries stored as yaml files under ./backend/library/libraries.
+
+current_path = "/".join(__file__.split("/")[:-1])
+library_path = os.path.join(current_path,"..","backend","library","libraries")
+fnames = [
+	fname for fname in os.listdir(library_path)
+	if fname.endswith(".yaml")
+]
+
+for fname in fnames :
+	lib = os.path.join(library_path,fname)
+
+	with open(lib,"r",encoding="utf-8") as f:
+		content = f.read()
+	lines = content.split("\n")
+
+	if not any(
+		re.match(r"^builtin.*:.*true",line) is not None
+		for line in lines
+	) :
+		lines.insert(1,"builtin: true")
+		with open(lib,"w",encoding="utf-8") as f :
+			f.write("\n".join(lines))
+		print(f"Library '{fname}' updated.")