jETHs/hardhat.config.ts at main · Jubilee-Protocol/jETHs · GitHub

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import { HardhatUserConfig } from "hardhat/config";
import "dotenv/config";
import "@nomicfoundation/hardhat-toolbox";
import "hardhat-preprocessor";
import * as fs from "fs";

function getRemappings() {
  return fs
    .readFileSync("remappings.txt", "utf8")
    .split("\n")
    .filter(Boolean)
    .map((line: string) => line.trim().split("="));
}
const config: HardhatUserConfig = {
  solidity: {
    version: "0.8.24",
    settings: {
      optimizer: {
        enabled: true,
        runs: 200, // Balanced for execution gas and deployment size
      },
      evmVersion: "cancun",
      viaIR: true,
    },
  },
  networks: {
    hardhat: {
      initialBaseFeePerGas: 0,
      forking: {
        url: process.env.BASE_MAINNET_RPC_URL || "https://mainnet.base.org",
        blockNumber: 25000000, // Optional: pin a block
      },
    },
    baseSepolia: {
      url: process.env.BASE_SEPOLIA_RPC_URL || "https://sepolia.base.org",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
    },
    base: {
      url: process.env.BASE_MAINNET_RPC_URL || "https://mainnet.base.org",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
    },
    sepolia: {
      url: process.env.SEPOLIA_RPC_URL || "https://rpc.sepolia.org",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
    },
    mainnet: {
      url: process.env.MAINNET_RPC_URL || "https://eth.llamarpc.com",
      accounts: process.env.PRIVATE_KEY ? [process.env.PRIVATE_KEY] : [],
    },
  },
  paths: {
    artifacts: "./artifacts",
    sources: "./contracts",
    tests: "./test",
    cache: "./cache",
  },
  preprocess: {
    eachLine: () => ({
      transform: (line: string) => {
        if (line.match(/^\s*import /i)) {
          for (const [find, replace] of getRemappings()) {
            if (line.includes(find)) {
              line = line.replace(find, replace);
            }
          }
        }
        return line;
      },
    }),
  },
  etherscan: {
    apiKey: {
      base: process.env.BASESCAN_API_KEY || "",
      mainnet: process.env.ETHERSCAN_API_KEY || "",
      sepolia: process.env.ETHERSCAN_API_KEY || "",
    },
    customChains: [
      {
        network: "base",
        chainId: 8453,
        urls: {
          apiURL: "https://api.basescan.org/api",
          browserURL: "https://basescan.org",
        },
      },
    ],
  },
  gasReporter: {
    enabled: false,
  },
};
export default config;