clangify.py

#!/usr/bin/env python

import argparse
import json
import os.path
import re

parser = argparse.ArgumentParser()
parser.add_argument("--clang-path", required=True)
args = parser.parse_args()

clang_path = os.path.abspath(args.clang_path)

with open("compile_commands.json") as f:
    data = json.load(f)

for entry in data:
    entry["command"] = re.sub("^cc", clang_path, entry["command"])

print(json.dumps(data, f, indent=2))