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hardhat.config.ts
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import fs from 'fs';
import '@nomiclabs/hardhat-waffle';
import '@typechain/hardhat';
import '@nomiclabs/hardhat-etherscan';
import 'hardhat-deploy';
import 'hardhat-tracer';
import 'hardhat-gas-reporter';
import 'hardhat-preprocessor';
import 'solidity-coverage';
import { config as dotEnvConfig } from 'dotenv';
function getRemappings() {
return fs
.readFileSync('remappings.txt', 'utf8')
.split('\n')
.filter(Boolean)
.map(line => line.trim().split('='));
}
dotEnvConfig();
const { INFURA_TOKEN, PRIVATE_KEY, ETHERSCAN_API_KEY } = process.env;
const config = {
solidity: {
version: '0.8.17',
settings: {
optimizer: {
enabled: true,
runs: 200,
},
},
},
paths: {
sources: './contracts', // Use ./src rather than ./contracts as Hardhat expects
cache: './cache_hardhat', // Use a different cache for Hardhat than Foundry
},
networks: {
gnosis: {
url: `https://rpc.gnosis.gateway.fm`,
accounts: PRIVATE_KEY
? [PRIVATE_KEY]
: {
mnemonic: 'test test test test test test test test test test test junk',
},
},
bsc: {
url: 'https://bsc-dataseed.binance.org/',
accounts: process.env.PRIVATE_KEY
? [process.env.PRIVATE_KEY]
: { mnemonic: 'test test test test test test test test test test test junk' },
},
goerli: {
url: `https://goerli.infura.io/v3/${INFURA_TOKEN}`,
accounts: PRIVATE_KEY
? [PRIVATE_KEY]
: {
mnemonic: 'test test test test test test test test test test test junk',
},
},
polygon: {
url: `https://polygon-mainnet.infura.io/v3/${INFURA_TOKEN}`,
accounts: PRIVATE_KEY
? [PRIVATE_KEY]
: {
mnemonic: 'test test test test test test test test test test test junk',
},
},
mainnet: {
url: `https://mainnet.infura.io/v3/${INFURA_TOKEN}`,
accounts: PRIVATE_KEY
? [PRIVATE_KEY]
: {
mnemonic: 'test test test test test test test test test test test junk',
},
},
hardhat: {
blockGasLimit: 9500000,
chainId: 56,
forking: {
url: `https://bsc-mainnet.nodereal.io/v1/64a9df0874fb4a93b9d0a3849de012d3`,
blockNumber: 28718507,
},
initialBaseFeePerGas: 5,
},
coverage: {
url: 'http://127.0.0.1:8555',
},
},
etherscan: {
apiKey: ETHERSCAN_API_KEY,
},
mocha: {
timeout: 100000000,
},
// This fully resolves paths for imports in the ./lib directory for Hardhat
preprocess: {
eachLine: () => ({
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;