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hardhat.config.ts
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import fs from "fs";
import * as dotenv from "dotenv";
import { HardhatUserConfig } from "hardhat/config";
import "@nomiclabs/hardhat-etherscan";
import "@nomiclabs/hardhat-waffle";
import "@typechain/hardhat";
import "hardhat-gas-reporter";
import "solidity-coverage";
import "hardhat-preprocessor";
dotenv.config();
function getRemappings() {
return fs
.readFileSync("remappings.txt", "utf8")
.split("\n")
.filter(Boolean)
.map((line) => line.trim().split("="));
}
const config: HardhatUserConfig = {
solidity: {
version: "0.8.12",
settings: {
optimizer: {
enabled: true,
runs: 168,
},
},
},
networks: {
bsc_mainnet: {
url: process.env.BSC_MAINNET_RPC,
accounts: [process.env.MAINNET_DEPLOYER_PRIVATE_KEY!],
},
bsc_testnet: {
url: "https://data-seed-prebsc-2-s2.binance.org:8545/",
accounts: [process.env.TESTNET_DEPLOYER_PRIVATE_KEY!],
},
fantom_mainnet: {
url: process.env.FTM_MAINNET_RPC || 'https://rpc.ftm.tools',
accounts: [process.env.MAINNET_DEPLOYER_PRIVATE_KEY!],
},
},
gasReporter: {
enabled: process.env.REPORT_GAS !== undefined,
currency: "USD",
},
etherscan: {
apiKey: process.env.ETHERSCAN_API_KEY || '',
},
paths: {
sources: "./contracts/8.12",
tests: "./tests",
cache: "./cache",
artifacts: "./artifacts",
},
// This fully resolves paths for imports in the ./lib directory for Hardhat
preprocess: {
eachLine: (hre) => ({
transform: (line: string) => {
if (line.match(/^\s*import /i)) {
getRemappings().forEach(([find, replace]) => {
if (line.match(find)) {
line = line.replace(find, replace);
}
});
}
return line;
},
}),
},
};
export default config;