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Merge pull request #1189 from HathorNetwork/chore/update-checkpoints
chore: update mainnet and testnet checkpoints and include helper script
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| #!/usr/bin/env python | ||
| """ | ||
| Usage: update_checkpoints.py [-h] [-n NETWORK] | ||
| Helper script to update the config checkpoint list. | ||
| options: | ||
| -h, --help show this help message and exit | ||
| -n NETWORK, --network NETWORK | ||
| The network to update (default: mainnet) | ||
| For example: | ||
| $ ./extras/update_checkpoints.py | ||
| New checkpoints to add for mainnet: | ||
| 4_800_000: 00000000000000000716b8d9e96591ba7cb2d02c3d2d1d98d514f41c240fdff7 | ||
| 4_900_000: 0000000000000000079b1c1ebf48d351a7d31dcc55c5b4cf79ade79089a20f5a | ||
| 5_000_000: 000000000000000006c9167db1cc7e93fcf1c3014da6c6221390d03d1640c9b3 | ||
| cp(4_800_000, bytes.fromhex('00000000000000000716b8d9e96591ba7cb2d02c3d2d1d98d514f41c240fdff7')), | ||
| cp(4_900_000, bytes.fromhex('0000000000000000079b1c1ebf48d351a7d31dcc55c5b4cf79ade79089a20f5a')), | ||
| cp(5_000_000, bytes.fromhex('000000000000000006c9167db1cc7e93fcf1c3014da6c6221390d03d1640c9b3')), | ||
| The output can then be copied and pasted into `hathor/conf/mainnet.yml` and `hathor/conf/mainnet.py` | ||
| """ | ||
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| import requests | ||
| import yaml | ||
| import argparse | ||
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| # Built-in network configurations | ||
| NETWORKS: dict[str, dict[str, str]] = { | ||
| 'mainnet': { | ||
| 'config_file': 'hathor/conf/mainnet.yml', | ||
| 'node_url': 'https://node1.mainnet.hathor.network/v1a', | ||
| }, | ||
| 'testnet': { | ||
| 'config_file': 'hathor/conf/testnet.yml', | ||
| 'node_url': 'https://node1.golf.testnet.hathor.network/v1a', | ||
| }, | ||
| # Add more networks as needed | ||
| } | ||
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| CHECKPOINT_INTERVAL: int = 100_000 | ||
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| def get_latest_height(node_url: str) -> int: | ||
| """Fetch the latest block height.""" | ||
| response = requests.get(f'{node_url}/transaction?type=block&count=1') | ||
| response.raise_for_status() | ||
| return response.json()['transactions'][0]['height'] | ||
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| def get_hash_for_height(node_url: str, height: int) -> str: | ||
| """Fetch the hash for a given block height.""" | ||
| response = requests.get(f'{node_url}/block_at_height?height={height}') | ||
| response.raise_for_status() | ||
| return response.json()['block']['tx_id'] | ||
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| def load_checkpoints(config_file: str) -> dict[str, int]: | ||
| """Load the checkpoints from the specified YAML config file.""" | ||
| with open(config_file, 'r') as file: | ||
| data = yaml.safe_load(file) | ||
| return data.get('CHECKPOINTS', {}) | ||
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| def print_new_checkpoints(network_name: str) -> None: | ||
| """Print new checkpoints for the specified network.""" | ||
| if network_name not in NETWORKS: | ||
| print(f'Error: Unknown network {network_name}. Available networks: {", ".join(NETWORKS.keys())}') | ||
| return | ||
|
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| # Get the network configuration | ||
| network_config = NETWORKS[network_name] | ||
| config_file = network_config['config_file'] | ||
| node_url = network_config['node_url'] | ||
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| # Load existing checkpoints from the YAML file | ||
| current_checkpoints = load_checkpoints(config_file) | ||
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| # Get the latest block height | ||
| latest_height = get_latest_height(node_url) | ||
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| # Determine missing checkpoints | ||
| new_checkpoints = {} | ||
| for height in range(CHECKPOINT_INTERVAL, latest_height + 1, CHECKPOINT_INTERVAL): | ||
| if height not in current_checkpoints: | ||
| block_hash = get_hash_for_height(node_url, height) | ||
| new_checkpoints[height] = block_hash | ||
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| # Print new checkpoints | ||
| if new_checkpoints: | ||
| print(f'New checkpoints to add for {network_name}:\n') | ||
| for height, block_hash in sorted(new_checkpoints.items()): | ||
| print(f' {height:_}: {block_hash}') | ||
| print() | ||
| for height, block_hash in sorted(new_checkpoints.items()): | ||
| print(f''' cp({height:_}, bytes.fromhex('{block_hash}')),''') | ||
| else: | ||
| print(f'No new checkpoints needed for {network_name}. All up to date.') | ||
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| if __name__ == '__main__': | ||
| # Parse command-line arguments | ||
| parser = argparse.ArgumentParser(description='Helper script to update the config checkpoint list.') | ||
| parser.add_argument('-n', '--network', default='mainnet', help='The network to update (default: mainnet)') | ||
| args = parser.parse_args() | ||
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| # Print new checkpoints for the specified network | ||
| print_new_checkpoints(args.network) |
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