[wip] script and config for deployment on a test network

hardhat.config_testnet.js

@@ -0,0 +1,24 @@
+require("@nomiclabs/hardhat-waffle")
+require("hardhat-deploy")
+require("hardhat-deploy-ethers")
+
+const
+  TESTNET_ID = "..." // e.g. "2337"
+
+  TESTNET_URL = "http://127.0.0.1:8545"
+
+  // keys for funded accounts unlocked on the node corresponding to TESTNET_URL
+  TESTNET_PRIVATE_KEYS = [
+    "...",
+    "..."
+  ]
+
+module.exports = {
+  solidity: "0.8.4",
+  networks: {
+    [`${TESTNET_ID}`]: {
+      url: TESTNET_URL,
+      accounts: TESTNET_PRIVATE_KEYS
+    }
+  }
+}

scripts/deploy.js

@@ -0,0 +1,60 @@
+// first run `npm start` so deployment-localhost.json is written to disk
+// might need to run with custom port to avoid conflict on e.g. port 8545:
+// ./node_modules/.bin/hardhat node --port 34567 --export deployment-localhost.json
+// then run this script:
+// ./node_modules/.bin/hardhat run scripts/deploy.js --config hardhat.config_testnet.js --network [TESTNET_ID]
+// make sure hardhat.config_testnet.js has matching TESTNET_ID and appropriate url and keys
+
+const
+  TESTNET_ID = "..." // e.g. "2337"
+
+async function main() {
+  const
+    [deployer] = await ethers.getSigners()
+
+  console.log("Deploying contracts with the account:", deployer.address)
+  console.log("Account balance:", (await deployer.getBalance()).toString())
+
+  const
+    TestToken = await ethers.getContractFactory("TestToken")
+    testToken = await TestToken.deploy()
+
+  console.log("TestToken address:", testToken.address)
+
+  const
+    token = testToken.address
+    proofPeriod = 10
+    proofTimeout = 5
+    proofDowntime = 64
+    collateralAmount = 100
+    slashMisses = 3
+    slashPercentage = 10
+
+  const
+    Storage = await ethers.getContractFactory("Storage")
+    storage = await Storage.deploy(token, proofPeriod, proofTimeout,
+      proofDowntime, collateralAmount, slashMisses, slashPercentage)
+
+  console.log("Storage address:", storage.address)
+
+  const
+    file = "./deployment-localhost.json"
+    fs = require("fs/promises")
+
+  let
+    deployment = JSON.parse((await fs.readFile(file)).toString())
+
+  deployment.name = "testnet"
+  deployment.chainId = TESTNET_ID
+  deployment.contracts.TestToken.address = testToken.address
+  deployment.contracts.Storage.address = storage.address
+
+  await fs.writeFile(file, JSON.stringify(deployment, null, 2))
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error)
+    process.exit(1)
+  })