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index.js
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index.js
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#!/usr/bin/env node
const yargs = require('yargs/yargs');
const temp = require("temp");
const spawn = require('cross-spawn')
const path = require("path");
const fs = require("fs").promises;
const findParentDir = require('find-parent-dir');
const os = require("os");
temp.track();
const argv = yargs(process.argv.slice(2)).options({
// Server config
port: {
type: 'number'
},
hostname: {
type: 'string'
},
// Provider config
// In order from here: https://hardhat.org/hardhat-network/reference/#config
chainId: {
type: "number"
},
from: {
type: "string"
},
gas: {
type: "number"
},
gasPrice: {
type: "number"
},
gasMultiplier: {
type: "number"
},
accounts: {
type: "array"
},
"accounts.mnemonic": {
type: 'string'
},
"accounts.initialIndex": {
type: 'number'
},
"accounts.path": {
type: 'string'
},
"accounts.count": {
type: 'number'
},
"accounts.accountsBalance": {
type: 'string'
},
blockGasLimit: {
type: "number"
},
minGasPrice: {
type: "number"
},
hardfork: {
type: "string"
},
throwOnTransactionFailures: {
type: "boolean"
},
throwOnCallFailures: {
type: "boolean"
},
loggingEnabled: {
type: "boolean"
},
initialDate: {
type: "string"
},
allowUnlimitedContractSize: {
type: "boolean"
},
"forking.url": {
type: 'string'
},
"forking.blockNumber": {
type: 'string'
},
"forking.enabled": {
type: 'boolean'
},
initialBaseFeePerGas: {
type: "string"
},
"mining.auto": {
type: "boolean"
},
"mining.interval": {
type: "array"
}
}).argv;
let keys = Object.keys(argv);
let hasDeepAccountKeys = keys.filter((key) => key.indexOf("accounts.") >= 0).length > 0;
if (keys.indexOf("accounts") >= 0 && hasDeepAccountKeys) {
throw new Error("Please specify either `accounts` or `accounts.<...>` options.");
}
const networkConfigObject = {};
Object.keys(argv).forEach((key) => {
let obj = networkConfigObject;
let currentKey = key;
while (currentKey.indexOf(".") >= 0) {
let prefix = currentKey.substring(0, currentKey.indexOf("."));
if (typeof obj[prefix] == "undefined") {
obj[prefix] = {};
}
currentKey = currentKey.substring(currentKey.indexOf("."));
obj = obj[prefix];
}
obj[currentKey] = argv[key];
})
// Special cases due to yargs parsing
if (typeof networkConfigObject["mining"] != "undefined"
&& typeof networkConfigObject.mining["interval"] != "undefined") {
if (networkConfigObject.mining.interval.length == 1) {
networkConfigObject.mining.interval = networkConfigObject.mining.interval[0];
}
}
let mainConfigObject = {
defaultNetwork: "hardhat",
networks: {
hardhat: networkConfigObject
}
}
temp.mkdir('jackhammer', async function(err, dirPath) {
var configPath = path.join(dirPath, 'hardhat.config.js')
await fs.writeFile(configPath, `
module.exports = ${JSON.stringify(mainConfigObject, null, 2)}
`)
let currentWorkingDirectory = process.cwd();
let hardhatCLIPath = null;
let spawnWorkingDirectory = currentWorkingDirectory;
// Try looking for hardhat in the current working directory
// (or any parent folder with a node_modules folder).
// If found, we'll use that one.
try {
let dir = findParentDir.sync(currentWorkingDirectory, "node_modules")
let potentialPath = path.join(dir, "node_modules", "hardhat", "internal", "cli", "cli.js");
await fs.stat(potentialPath);
hardhatCLIPath = potentialPath;
} catch (e) {}
let persistentTempDir = path.join(os.tmpdir(), "__jackhammer_hardhat__");
// If it's not found in the current working directory, let's see if
// it's in the persistent temporary directory. We do this so that
// we don't have to install it each time it's not found locally.
if (hardhatCLIPath == null) {
try {
let potentialPath = path.join(persistentTempDir, "node_modules", "hardhat", "internal", "cli", "cli.js");
await fs.stat(potentialPath);
hardhatCLIPath = potentialPath;
spawnWorkingDirectory = persistentTempDir;
} catch (e) {}
}
// Still nothing? Alright, let's install it.
if (hardhatCLIPath == null) {
await fs.mkdir(persistentTempDir, {recursive: true})
console.log("Hang tight, installing hardhat! (one-time, cached)");
console.log("TIP: Jackhammer can skip this step if you run it within a project with hardhat installed.");
console.log("")
let interval = setInterval(() => {
process.stdout.write(".")
}, 1000)
await new Promise((resolve, reject) => {
let child = spawn("npm", [
"install",
"hardhat"
], {
stdio: "ignore",
cwd: persistentTempDir
})
child.on('exit', function() {
resolve();
})
})
clearInterval(interval);
console.log("")
console.log("")
hardhatCLIPath = path.join(persistentTempDir, "node_modules", "hardhat", "internal", "cli", "cli.js");
spawnWorkingDirectory = persistentTempDir;
}
let args = [
hardhatCLIPath,
"--config",
path.join(configPath),
"node"
];
if (typeof argv["port"] != "undefined") {
args.push("--port", argv["port"])
}
if (typeof argv["hostname"] != "undefined") {
args.push("--hostname", argv["hostname"])
}
spawn("node", args, {
stdio: "inherit",
cwd: spawnWorkingDirectory
})
});