Idiamondinit

contracts/interfaces/IDiamondInit.sol

@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+interface IDiamondInit {
+    function init() external;
+}

contracts/upgradeInitializers/DiamondInit.sol

@@ -13,12 +13,13 @@ import { IDiamondLoupe } from "../interfaces/IDiamondLoupe.sol";
 import { IDiamondCut } from "../interfaces/IDiamondCut.sol";
 import { IERC173 } from "../interfaces/IERC173.sol";
 import { IERC165 } from "../interfaces/IERC165.sol";
+import {IDiamondInit} from "../interfaces/IDiamondInit.sol";
 
 // It is exapected that this contract is customized if you want to deploy your diamond
 // with data from a deployment script. Use the init function to initialize state variables
 // of your diamond. Add parameters to the init funciton if you need to.
 
-contract DiamondInit {    
+contract DiamondInit is IDiamondInit {    
 
     // You can add parameters to this function in order to pass in 
     // data to set your own state variables
@@ -37,6 +38,4 @@ contract DiamondInit {
         // in order to set state variables in the diamond during deployment or an upgrade
         // More info here: https://eips.ethereum.org/EIPS/eip-2535#diamond-interface 
     }
-
-
 }

package.json

@@ -1,6 +1,7 @@
 {
   "name": "hardhat-project",
   "dependencies": {
-    "@nomiclabs/hardhat-ethers": "^2.0.6"
+    "@nomiclabs/hardhat-ethers": "^2.0.6",
+    "ethers": "^5.6.9"
   }
 }

scripts/genSelectors.js

@@ -1,36 +1,45 @@
-const { artifacts, ethers } = require('hardhat')
-const hre = require('hardhat')
-const args = process.argv.slice(2)
+const ethers = require("ethers");
+const path = require("path/posix");
+
+const args = process.argv.slice(2);
 
 if (args.length != 1) {
   console.log(`please supply the correct parameters:
     facetName
-  `)
-  process.exit(1)
+  `);
+  process.exit(1);
 }
 
-async function printSelectors(contractName) {
-  const target = await ethers.getContractFactory(contractName)
-  const signatures = Object.keys(target.interface.functions)
+async function printSelectors(contractName, artifactFolderPath = "../out") {
+  const contractFilePath = path.join(
+    artifactFolderPath,
+    `${contractName}.sol`,
+    `${contractName}.json`
+  );
+  const contractArtifact = require(contractFilePath);
+  const abi = contractArtifact.abi;
+  const bytecode = contractArtifact.bytecode;
+  const target = new ethers.ContractFactory(abi, bytecode);
+  const signatures = Object.keys(target.interface.functions);
 
   const selectors = signatures.reduce((acc, val) => {
-    if (val !== 'init(bytes)') {
-      acc.push(target.interface.getSighash(val))
+    if (val !== "init(bytes)") {
+      acc.push(target.interface.getSighash(val));
     }
-    return acc
-  }, [])
+    return acc;
+  }, []);
 
-  const coder = ethers.utils.defaultAbiCoder
-  const coded = coder.encode(['bytes4[]'], [selectors])
+  const coder = ethers.utils.defaultAbiCoder;
+  const coded = coder.encode(["bytes4[]"], [selectors]);
 
-  process.stdout.write(coded)
+  process.stdout.write(coded);
 }
 
 // We recommend this pattern to be able to use async/await everywhere
 // and properly handle errors.
-printSelectors(args[0])
+printSelectors(args[0], args[1])
   .then(() => process.exit(0))
   .catch((error) => {
-    console.error(error)
-    process.exit(1)
-  })
+    console.error(error);
+    process.exit(1);
+  });