hardhat.config.cts

import '@nomicfoundation/hardhat-toolbox-viem';
import '@nomicfoundation/hardhat-viem';
import '@nomicfoundation/hardhat-chai-matchers';
import 'hardhat-noirenberg';

import { writeFileSync } from 'fs';
import { Chain } from 'viem';
import { task, vars } from 'hardhat/config';
import { HardhatUserConfig } from 'hardhat/types/config';
import fs from 'fs';
import { resolve } from 'path';

const config: HardhatUserConfig = {
  solidity: {
    version: '0.8.28',
    settings: {
      optimizer: { enabled: true, runs: 5000 },
    },
  },
  defaultNetwork: 'localhost',
  networks: {
    localhost: {
      url: 'http://127.0.0.1:8545',
      chainId: 31337,
      accounts: vars.has('localhost')
        ? [vars.get('localhost')]
        : ['0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80'],
    },
    scrollSepolia: {
      url: 'https://sepolia-rpc.scroll.io',
      accounts: vars.has('scrollSepolia') ? [vars.get('scrollSepolia')] : [],
    },
    holesky: {
      url: 'https://holesky.drpc.org',
      accounts: vars.has('holesky') ? [vars.get('holesky')] : [],
    },
  },
  paths: {
    root: 'packages',
    tests: 'tests',
  },
};

task('deploy', 'Deploys a verifier contract')
  .addOptionalPositionalParam('provingSystem')
  .setAction(async (taskArgs, hre) => {
    const contractsDir = resolve('packages', 'contracts');
    if (fs.existsSync(contractsDir)) fs.rmdirSync(contractsDir, { recursive: true });

    hre.config.noirenberg = { provingSystem: taskArgs.provingSystem || 'UltraPlonk' };
    await hre.run('compile');

    let verifier;
    if (taskArgs.provingSystem === 'UltraHonk') {
      verifier = await hre.viem.deployContract('HonkVerifier');
    } else {
      verifier = await hre.viem.deployContract('UltraVerifier');
    }

    const networkConfig = (await import(`viem/chains`))[hre.network.name] as Chain;
    const config = {
      name: hre.network.name,
      address: verifier.address,
      networkConfig: {
        ...networkConfig,
        id: hre.network.config.chainId,
      },
    };

    console.log(
      `Attached to address ${verifier.address} at network ${hre.network.name} with chainId ${networkConfig.id}...`,
    );
    writeFileSync('deployment.json', JSON.stringify(config), { flag: 'w' });
  });

export default config;