add deploy script for goerli

scripts/deploy-goerli.js

@@ -0,0 +1,76 @@
+const { ethers, run } = require("hardhat");
+require("dotenv").config();
+
+/**
+ *  Make sure your environment variables are named PRIVATE_KEY and ETHERSCAN_API_KEY
+ *  This script will automatically submit your contract for verification if ETHERSCAN_API_KEY is provided
+ */
+
+async function main() {
+  const PRIVATE_KEY = process.env.PRIVATE_KEY;
+  const owner = new ethers.Wallet(PRIVATE_KEY);
+  const provider = ethers.getDefaultProvider("goerli");
+  const transactionCount = await owner.connect(provider).getTransactionCount();
+
+  // gets the address of the token before it is deployed
+  const futureAddress = ethers.utils.getContractAddress({
+    from: owner.address,
+    nonce: transactionCount + 1,
+  });
+  console.log("Future Address", futureAddress);
+
+  const MyGovernor = await ethers.getContractFactory("MyGovernor");
+  const governor = await MyGovernor.deploy(futureAddress);
+
+  const MyToken = await ethers.getContractFactory("MyToken");
+  const token = await MyToken.deploy(governor.address);
+
+  console.log(
+    `Governor deployed to ${governor.address}`,
+    `Token deployed to ${token.address}`
+  );
+
+  // contract verification on goerli.etherscan.io
+  if (process.env.ETHERSCAN_API_KEY) {
+    console.log("Awaiting contract verification, this may take a while");
+    // wait a little bit so that etherscan has access to bytecode
+    await Sleep(60000);
+
+    try {
+      console.log("Verifying Governor contract");
+      await run("verify:verify", {
+        address: governor.address,
+        constructorArguments: [token.address],
+      });
+    } catch (e) {
+      if (e.message.toLowerCase().includes("already verified")) {
+        console.log("Already verified!");
+      } else {
+        console.log(e);
+      }
+    }
+
+    try {
+      console.log("Verifying Token contract");
+      await run("verify:verify", {
+        address: token.address,
+        constructorArguments: [governor.address],
+      });
+    } catch (e) {
+      if (e.message.toLowerCase().includes("already verified")) {
+        console.log("Already verified!");
+      } else {
+        console.log(e);
+      }
+    }
+  }
+}
+
+function Sleep(milliseconds) {
+  return new Promise((resolve) => setTimeout(resolve, milliseconds));
+}
+
+main().catch((error) => {
+  console.error(error);
+  process.exitCode = 1;
+});