basic hardhat setup

.env.example

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+ETHERSCAN_API_KEY=ABC123ABC123ABC123ABC123ABC123ABC1
+ROPSTEN_URL=https://eth-ropsten.alchemyapi.io/v2/<YOUR ALCHEMY KEY>
+PRIVATE_KEY=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1

.eslintignore

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+node_modules
+artifacts
+cache
+coverage

.eslintrc.js

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+module.exports = {
+  env: {
+    browser: false,
+    es2021: true,
+    mocha: true,
+    node: true,
+  },
+  plugins: ["@typescript-eslint"],
+  extends: [
+    "standard",
+    "plugin:prettier/recommended",
+    "plugin:node/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaVersion: 12,
+  },
+  rules: {
+    "node/no-unsupported-features/es-syntax": [
+      "error",
+      { ignores: ["modules"] },
+    ],
+  },
+};

.gitignore

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+node_modules
+.env
+coverage
+coverage.json
+typechain
+
+#Hardhat files
+cache
+artifacts

.npmignore

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+hardhat.config.ts
+scripts
+test

.prettierignore

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+node_modules
+artifacts
+cache
+coverage*
+gasReporterOutput.json

.prettierrc

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+{}

.solhint.json

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+{
+  "extends": "solhint:recommended",
+  "rules": {
+    "compiler-version": ["error", "^0.8.0"],
+    "func-visibility": ["warn", { "ignoreConstructors": true }]
+  }
+}

.solhintignore

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+node_modules

hardhat.config.ts

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+import * as dotenv from "dotenv";
+
+import { HardhatUserConfig, task } from "hardhat/config";
+import "@nomiclabs/hardhat-etherscan";
+import "@nomiclabs/hardhat-waffle";
+import "@typechain/hardhat";
+import "hardhat-gas-reporter";
+import "solidity-coverage";
+
+dotenv.config();
+
+// This is a sample Hardhat task. To learn how to create your own go to
+// https://hardhat.org/guides/create-task.html
+task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
+  const accounts = await hre.ethers.getSigners();
+
+  for (const account of accounts) {
+    console.log(account.address);
+  }
+});
+
+// You need to export an object to set up your config
+// Go to https://hardhat.org/config/ to learn more
+
+const config: HardhatUserConfig = {
+  solidity: "0.8.4",
+  networks: {
+    ropsten: {
+      url: process.env.ROPSTEN_URL || "",
+      accounts:
+        process.env.PRIVATE_KEY !== undefined ? [process.env.PRIVATE_KEY] : [],
+    },
+  },
+  gasReporter: {
+    enabled: process.env.REPORT_GAS !== undefined,
+    currency: "USD",
+  },
+  etherscan: {
+    apiKey: process.env.ETHERSCAN_API_KEY,
+  },
+};
+
+export default config;

package.json

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+{
+  "name": "infinite-proxy",
+  "version": "1.0.0",
+  "description": "Upgradable proxy with infinite implementations enabled at once.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/Instadapp/infinite-proxy.git"
+  },
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/Instadapp/infinite-proxy/issues"
+  },
+  "homepage": "https://github.com/Instadapp/infinite-proxy#readme",
+  "devDependencies": {
+    "@nomiclabs/hardhat-ethers": "^2.0.5",
+    "@nomiclabs/hardhat-etherscan": "^3.0.3",
+    "@nomiclabs/hardhat-waffle": "^2.0.3",
+    "@typechain/ethers-v5": "^7.2.0",
+    "@typechain/hardhat": "^2.3.1",
+    "@types/chai": "^4.3.1",
+    "@types/mocha": "^9.1.0",
+    "@types/node": "^12.20.48",
+    "@typescript-eslint/eslint-plugin": "^4.33.0",
+    "@typescript-eslint/parser": "^4.33.0",
+    "chai": "^4.3.6",
+    "dotenv": "^10.0.0",
+    "eslint": "^7.32.0",
+    "eslint-config-prettier": "^8.5.0",
+    "eslint-config-standard": "^16.0.3",
+    "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-prettier": "^3.4.1",
+    "eslint-plugin-promise": "^5.2.0",
+    "ethereum-waffle": "^3.4.4",
+    "ethers": "^5.6.4",
+    "hardhat": "^2.9.3",
+    "hardhat-gas-reporter": "^1.0.8",
+    "prettier": "^2.6.2",
+    "prettier-plugin-solidity": "^1.0.0-beta.13",
+    "solhint": "^3.3.7",
+    "solidity-coverage": "^0.7.20",
+    "ts-node": "^10.7.0",
+    "typechain": "^5.2.0",
+    "typescript": "^4.6.3"
+  }
+}

scripts/deploy.ts

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+// We require the Hardhat Runtime Environment explicitly here. This is optional
+// but useful for running the script in a standalone fashion through `node <script>`.
+//
+// When running the script with `npx hardhat run <script>` you'll find the Hardhat
+// Runtime Environment's members available in the global scope.
+import { ethers } from "hardhat";
+
+async function main() {
+  // Hardhat always runs the compile task when running scripts with its command
+  // line interface.
+  //
+  // If this script is run directly using `node` you may want to call compile
+  // manually to make sure everything is compiled
+  // await hre.run('compile');
+
+  // We get the contract to deploy
+  const Greeter = await ethers.getContractFactory("Greeter");
+  const greeter = await Greeter.deploy("Hello, Hardhat!");
+
+  await greeter.deployed();
+
+  console.log("Greeter deployed to:", greeter.address);
+}
+
+// We recommend this pattern to be able to use async/await everywhere
+// and properly handle errors.
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});

test/index.ts

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+import { expect } from "chai";
+import { ethers } from "hardhat";
+
+describe("Greeter", function () {
+  it("Should return the new greeting once it's changed", async function () {
+    const Greeter = await ethers.getContractFactory("Greeter");
+    const greeter = await Greeter.deploy("Hello, world!");
+    await greeter.deployed();
+
+    expect(await greeter.greet()).to.equal("Hello, world!");
+
+    const setGreetingTx = await greeter.setGreeting("Hola, mundo!");
+
+    // wait until the transaction is mined
+    await setGreetingTx.wait();
+
+    expect(await greeter.greet()).to.equal("Hola, mundo!");
+  });
+});

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2018",
+    "module": "commonjs",
+    "strict": true,
+    "esModuleInterop": true,
+    "outDir": "dist",
+    "declaration": true
+  },
+  "include": ["./scripts", "./test", "./typechain"],
+  "files": ["./hardhat.config.ts"]
+}