hardhat.config.js

const { task } = require('hardhat/config');
const config = require('./config');
const { ShardedMerkleTree } = require('./src/merkle');

/**
 * @type import('hardhat/config').HardhatUserConfig
 */
require('hardhat-deploy');
require("@nomiclabs/hardhat-ethers");
require("@nomiclabs/hardhat-waffle");

// Load environment variables from .env file. Suppress warnings using silent
// if this file is missing. dotenv will never modify any environment variables
// that have already been set.
// https://github.com/motdotla/dotenv
require('dotenv').config({silent: true});

real_accounts = undefined;
if(process.env.DEPLOYER_KEY) {
  real_accounts = [process.env.DEPLOYER_KEY];
}

task("maketree", "Generates a merkle airdrop tree")
  .addParam("file", "File to read airdrop data from")
  .addOptionalParam("name", "Output filename for the airdrop", undefined)
  .addOptionalParam("shardnybbles", "Number of nybbles to use for sharding", 2, types.int)
  .setAction(async ({ file, name, shardnybbles }) => {
    if(name === undefined) {
      name = hre.network.name;
    }
    let airdrops;
    if(hre.network.tags.test) {
      shardnybbles = 1;
      const signers = await ethers.getSigners();
      airdrops = signers.slice(0, 20).map((signer, index) => [
        signer.address,
        {
          past_tokens: '625000000000000000000000',
          future_tokens: '625000000000000000000000',
          longest_owned_name: '0x04f740db81dc36c853ab4205bddd785f46e79ccedca351fc6dfcbd8cc9a33dd6', // keccak256('test')
          last_expiring_name: '0x04f740db81dc36c853ab4205bddd785f46e79ccedca351fc6dfcbd8cc9a33dd6',
          balance: '1250000000000000000000000',
          has_reverse_record: index % 2 == 0,
        }
      ]);
    } else {
      const fs = require('fs');
      airdrops = fs.readFileSync(file, {encoding: 'utf-8'}).split('\n').filter((x) => x.length > 0).map((line) => {
        const data = JSON.parse(line);
        const owner = data.owner;
        delete data.owner;
        data.balance = ethers.BigNumber.from(data.past_tokens.toString().split('.')[0]).add(ethers.BigNumber.from(data.future_tokens.toString().split('.')[0])).toString();
        return [owner, data];
      });
    }
    ShardedMerkleTree.build(
      airdrops,
      shardnybbles,
      `airdrops/${name}`
    );
  }
);

module.exports = {
  solidity: "0.8.7",
  namedAccounts: {
    deployer: {
      default: 0
    },
  },
  networks: {
    hardhat: {
      initialDate: config.UNLOCK_BEGIN,
      tags: ["test"],
    },
    mainnet: {
      url: "http://localhost:8545/",
      chainId: 1,
      accounts: real_accounts,
      maxPriorityFeePerGas: 1000000000
    },
    tenderly: {
      url: "https://rpc.tenderly.co/fork/bd704e15-7f2c-4f12-8c1a-9bedf536c336"
    }
  },
};