Comitting on task #3

.github/workflows/deploy.yaml

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+name: Deploy Hardhat to Devnet
+
+on:
+  pull_request:
+    types: 
+      - closed
+
+jobs:
+  deploy:
+    if: contains(github.event.pull_request.labels.*.name, 'CI:Deploy')
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Compose
+        run: docker-compose up -d
+
+      - name: Install Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '14'
+
+      - name: Set up Hardhat
+        run: |
+          cd hardhat
+          npm install
+
+      - name: Deploy Contracts
+        run: |
+          cd hardhat
+          npx hardhat run scripts/deploy.js --network localhost
+
+      - name: Commit and Push Docker Image
+        env:
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PAT }}
+        run: |
+          docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD
+          id=$(docker ps -q -f "ancestor=mtotovski/go-ethereum")
+          docker commit $id mtotovski/go-ethereum:deployed
+          docker push mtotovski/go-ethereum:deployed

.github/workflows/go.yml

@@ -1,48 +0,0 @@
-name: i386 linux tests
-
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    branches: [ master ]
-  workflow_dispatch:
-
-jobs:
-  lint:
-    name: Lint
-    runs-on: self-hosted
-    steps:
-    - uses: actions/checkout@v4
-
-    # Cache build tools to avoid downloading them each time
-    - uses: actions/cache@v4
-      with:
-        path: build/cache
-        key: ${{ runner.os }}-build-tools-cache-${{ hashFiles('build/checksums.txt') }}
-
-    - name: Set up Go
-      uses: actions/setup-go@v5
-      with:
-        go-version: 1.23.0
-        cache: false
-
-    - name: Run linters
-      run: |
-        go run build/ci.go lint
-        go run build/ci.go check_generate
-        go run build/ci.go check_baddeps
-
-  build:
-    runs-on: self-hosted
-    steps:
-      - uses: actions/checkout@v4
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: 1.24.0
-          cache: false
-      - name: Run tests
-        run: go test -short ./...
-        env:
-          GOOS: linux
-          GOARCH: 386

docker-compose.yaml

@@ -1,17 +1,18 @@
 version: '3.8'
-
 services:
-  geth-node:
+  geth:
-    image: mtotovski/go-ethereum:latest
+    image: your-docker-username/go-ethereum
-    container_name: geth-devnet
     ports:
       - "8545:8545"
-      - "30303:30303"
+    networks:
+      - geth-net
     command: >
       --dev
       --http
       --http.addr 0.0.0.0
       --http.port 8545
-      --http.api eth,net,web3
+      --http.api personal,eth,net,web3
-      --http.corsdomain "*"
+
-      --allow-insecure-unlock
+networks:
+  geth-net:
+    driver: bridge

hardhat/.gitignore

@@ -0,0 +1,17 @@
+node_modules
+.env
+
+# Hardhat files
+/cache
+/artifacts
+
+# TypeChain files
+/typechain
+/typechain-types
+
+# solidity-coverage files
+/coverage
+/coverage.json
+
+# Hardhat Ignition default folder for deployments against a local node
+ignition/deployments/chain-31337

hardhat/README.md

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+# Sample Hardhat Project
+
+This project demonstrates a basic Hardhat use case. It comes with a sample contract, a test for that contract, and a Hardhat Ignition module that deploys that contract.
+
+Try running some of the following tasks:
+
+```shell
+npx hardhat help
+npx hardhat test
+REPORT_GAS=true npx hardhat test
+npx hardhat node
+npx hardhat ignition deploy ./ignition/modules/Lock.js
+```

hardhat/contracts/Lock.sol

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+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+// Uncomment this line to use console.log
+// import "hardhat/console.sol";
+
+contract Lock {
+    uint public unlockTime;
+    address payable public owner;
+
+    event Withdrawal(uint amount, uint when);
+
+    constructor(uint _unlockTime) payable {
+        require(
+            block.timestamp < _unlockTime,
+            "Unlock time should be in the future"
+        );
+
+        unlockTime = _unlockTime;
+        owner = payable(msg.sender);
+    }
+
+    function withdraw() public {
+        // Uncomment this line, and the import of "hardhat/console.sol", to print a log in your terminal
+        // console.log("Unlock time is %o and block timestamp is %o", unlockTime, block.timestamp);
+
+        require(block.timestamp >= unlockTime, "You can't withdraw yet");
+        require(msg.sender == owner, "You aren't the owner");
+
+        emit Withdrawal(address(this).balance, block.timestamp);
+
+        owner.transfer(address(this).balance);
+    }
+}

hardhat/hardhat.config.js

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+require("@nomiclabs/hardhat-waffle");
+require("@nomiclabs/hardhat-ethers");
+
+module.exports = {
+  solidity: "0.8.4",
+  networks: {
+    localhost: {
+      url: "http://127.0.0.1:8545"
+    }
+  }
+};

hardhat/ignition/modules/Lock.js

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+// This setup uses Hardhat Ignition to manage smart contract deployments.
+// Learn more about it at https://hardhat.org/ignition
+
+const { buildModule } = require("@nomicfoundation/hardhat-ignition/modules");
+
+const JAN_1ST_2030 = 1893456000;
+const ONE_GWEI = 1_000_000_000n;
+
+module.exports = buildModule("LockModule", (m) => {
+  const unlockTime = m.getParameter("unlockTime", JAN_1ST_2030);
+  const lockedAmount = m.getParameter("lockedAmount", ONE_GWEI);
+
+  const lock = m.contract("Lock", [unlockTime], {
+    value: lockedAmount,
+  });
+
+  return { lock };
+});

hardhat/package.json

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+{
+  "name": "hardhat",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@nomicfoundation/hardhat-toolbox": "^5.0.0",
+    "hardhat": "^2.22.19"
+  }
+}

hardhat/scripts/deploy.js

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+async function main() {
+    const [deployer] = await ethers.getSigners();
+    console.log("Deploying contracts with the account:", deployer.address);
+  
+    const Greeter = await ethers.getContractFactory("Greeter");
+    const greeter = await Greeter.deploy("Hello, Hardhat!");
+  
+    console.log("Greeter deployed to:", greeter.address);
+  }
+  
+  main()
+   .then(() => process.exit(0))
+   .catch((error) => {
+     console.error(error);
+     process.exit(1);
+   });

hardhat/test/Lock.js

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+const {
+  time,
+  loadFixture,
+} = require("@nomicfoundation/hardhat-toolbox/network-helpers");
+const { anyValue } = require("@nomicfoundation/hardhat-chai-matchers/withArgs");
+const { expect } = require("chai");
+
+describe("Lock", function () {
+  // We define a fixture to reuse the same setup in every test.
+  // We use loadFixture to run this setup once, snapshot that state,
+  // and reset Hardhat Network to that snapshot in every test.
+  async function deployOneYearLockFixture() {
+    const ONE_YEAR_IN_SECS = 365 * 24 * 60 * 60;
+    const ONE_GWEI = 1_000_000_000;
+
+    const lockedAmount = ONE_GWEI;
+    const unlockTime = (await time.latest()) + ONE_YEAR_IN_SECS;
+
+    // Contracts are deployed using the first signer/account by default
+    const [owner, otherAccount] = await ethers.getSigners();
+
+    const Lock = await ethers.getContractFactory("Lock");
+    const lock = await Lock.deploy(unlockTime, { value: lockedAmount });
+
+    return { lock, unlockTime, lockedAmount, owner, otherAccount };
+  }
+
+  describe("Deployment", function () {
+    it("Should set the right unlockTime", async function () {
+      const { lock, unlockTime } = await loadFixture(deployOneYearLockFixture);
+
+      expect(await lock.unlockTime()).to.equal(unlockTime);
+    });
+
+    it("Should set the right owner", async function () {
+      const { lock, owner } = await loadFixture(deployOneYearLockFixture);
+
+      expect(await lock.owner()).to.equal(owner.address);
+    });
+
+    it("Should receive and store the funds to lock", async function () {
+      const { lock, lockedAmount } = await loadFixture(
+        deployOneYearLockFixture
+      );
+
+      expect(await ethers.provider.getBalance(lock.target)).to.equal(
+        lockedAmount
+      );
+    });
+
+    it("Should fail if the unlockTime is not in the future", async function () {
+      // We don't use the fixture here because we want a different deployment
+      const latestTime = await time.latest();
+      const Lock = await ethers.getContractFactory("Lock");
+      await expect(Lock.deploy(latestTime, { value: 1 })).to.be.revertedWith(
+        "Unlock time should be in the future"
+      );
+    });
+  });
+
+  describe("Withdrawals", function () {
+    describe("Validations", function () {
+      it("Should revert with the right error if called too soon", async function () {
+        const { lock } = await loadFixture(deployOneYearLockFixture);
+
+        await expect(lock.withdraw()).to.be.revertedWith(
+          "You can't withdraw yet"
+        );
+      });
+
+      it("Should revert with the right error if called from another account", async function () {
+        const { lock, unlockTime, otherAccount } = await loadFixture(
+          deployOneYearLockFixture
+        );
+
+        // We can increase the time in Hardhat Network
+        await time.increaseTo(unlockTime);
+
+        // We use lock.connect() to send a transaction from another account
+        await expect(lock.connect(otherAccount).withdraw()).to.be.revertedWith(
+          "You aren't the owner"
+        );
+      });
+
+      it("Shouldn't fail if the unlockTime has arrived and the owner calls it", async function () {
+        const { lock, unlockTime } = await loadFixture(
+          deployOneYearLockFixture
+        );
+
+        // Transactions are sent using the first signer by default
+        await time.increaseTo(unlockTime);
+
+        await expect(lock.withdraw()).not.to.be.reverted;
+      });
+    });
+
+    describe("Events", function () {
+      it("Should emit an event on withdrawals", async function () {
+        const { lock, unlockTime, lockedAmount } = await loadFixture(
+          deployOneYearLockFixture
+        );
+
+        await time.increaseTo(unlockTime);
+
+        await expect(lock.withdraw())
+          .to.emit(lock, "Withdrawal")
+          .withArgs(lockedAmount, anyValue); // We accept any value as `when` arg
+      });
+    });
+
+    describe("Transfers", function () {
+      it("Should transfer the funds to the owner", async function () {
+        const { lock, unlockTime, lockedAmount, owner } = await loadFixture(
+          deployOneYearLockFixture
+        );
+
+        await time.increaseTo(unlockTime);
+
+        await expect(lock.withdraw()).to.changeEtherBalances(
+          [owner, lock],
+          [lockedAmount, -lockedAmount]
+        );
+      });
+    });
+  });
+});