This NodeJS utility generates the current checkpoints.csv file from a daemon and saves it to disk.
It's super easy to set up. Just type
git clone https://github.com/TheDevMinerTV/Checkpoint-Generator && cd Checkpoint-Generator && npm install && npm start
Then it will fetch all block hashes and save it into checkpoints.csv.
Forking is also super easy. You just need to edit checkpoint_generator.js in line 6 and 7.