Automate ICO deployment with comprehensive CI/CD pipeline and multi-network support #13

Copilot · 2025-08-31T18:28:21Z

This PR implements a complete automated deployment solution for the ICO smart contracts using GitHub Actions, addressing dependency conflicts, adding comprehensive testing, and enabling multi-network deployments with proper environment secret management.

Problem Statement

The existing repository had several critical issues preventing automated deployment:

Dependency conflicts between Hardhat 3.0.3 and toolbox 6.1.0
Missing network configurations for blockchain deployment
No test infrastructure despite workflow attempting to run tests
Incomplete GitHub Actions workflow lacking proper environment handling
OpenZeppelin compatibility issues with newer Ownable constructor requirements

Solution Overview

🔧 Technical Fixes

Resolved dependency conflicts by downgrading to compatible versions (Hardhat 2.22.0, toolbox 5.0.0)
Fixed ESM import issues in deployment scripts and tests
Updated OpenZeppelin Ownable constructors to pass initial owner parameter
Corrected ETH calculation logic in token purchase function with proper wei handling

🚀 CI/CD Pipeline Enhancement

Implemented a comprehensive multi-stage pipeline:

Build → Test → Security Check → Deploy (Testnet) → Deploy (Production)

Key Features:

Multi-network support: Ethereum, Polygon, BSC with network-specific configurations
Environment protection: Separate environments for testnet vs production deployments
Manual deployment controls: Workflow dispatch for controlled production releases
Artifact management: Automatic upload of deployment information and test results
Build caching: Optimized CI/CD performance with dependency and artifact caching

🧪 Comprehensive Testing

Created a complete test suite covering:

Contract deployment and token distribution validation
ETH purchase functionality with excess refund testing
Access control and owner permission verification
Edge cases like insufficient funds and invalid parameters

All 8 tests pass with proper mock contract infrastructure.

📋 Enhanced Deployment Script

The new deploy-with-info.js script provides:

Network-aware configuration: Automatic USDT/USDC address selection per network
Detailed progress logging: Step-by-step deployment with success indicators
Artifact generation: JSON files with complete deployment information including contract addresses, constructor parameters, and verification data
Post-deployment guidance: Automatic generation of verification commands and next steps

🔐 Security & Configuration

Environment secret management: Secure handling of private keys, API keys, and owner addresses
Network-specific RPC URLs: Support for Infura, Alchemy, and direct RPC endpoints
Git security: Proper .gitignore rules to exclude sensitive deployment artifacts
NPM audit integration: Automated security scanning in CI/CD pipeline

Usage Examples

Local Development

npm install
npm run compile
npm test
npm run deploy  # Local Hardhat network

Production Deployment

# Testnet (automatic on main branch push)
npm run deploy:sepolia

# Mainnet (manual trigger required)
npm run deploy:mainnet

GitHub Actions

Automatic: Push to main → Build → Test → Deploy to Sepolia
Manual: Workflow dispatch → Select network → Deploy to production with environment approval

Network Support

The solution supports deployment to:

Hardhat: Local development with mock token addresses
Sepolia: Ethereum testnet with testnet token contracts
Mainnet: Ethereum mainnet with production USDT/USDC addresses
Polygon: Polygon mainnet with native token addresses
BSC: Binance Smart Chain with BEP-20 token addresses

Verification & Monitoring

Each deployment automatically generates:

Contract addresses and constructor parameters
Token distribution verification (10% owner, 90% ICO)
Etherscan verification commands
Deployment timestamp and network information

This provides complete traceability and enables easy contract verification on block explorers.

The implementation follows smart contract deployment best practices with comprehensive testing, security considerations, and production-ready CI/CD automation.

This pull request was created as a result of the following prompt from Copilot chat.

Automate the deployment of an ICO (Initial Coin Offering) using GitHub Actions. The CI/CD pipeline should include build, test, and deploy stages, ensuring the contracts are compiled, tested thoroughly, and deployed to the specified blockchain network. The deployment should utilize environment secrets for sensitive data like the private key and blockchain provider API key.

💬 Share your feedback on Copilot coding agent for the chance to win a $200 gift card! Click here to start the survey.

…ehensive test suite Co-authored-by: sonnyquinn24 <227287527+sonnyquinn24@users.noreply.github.com>

…omprehensive documentation Co-authored-by: sonnyquinn24 <227287527+sonnyquinn24@users.noreply.github.com>

sonnyquinn24

@copilot

Copilot

Pull Request Overview

This PR implements a comprehensive automated deployment solution for ICO smart contracts, addressing critical dependency conflicts and adding complete CI/CD pipeline support. The solution enables multi-network deployments with proper environment management and comprehensive testing infrastructure.

Key Changes

Fixed dependency conflicts by downgrading to compatible versions (Hardhat 2.22.0, toolbox 5.0.0)
Implemented comprehensive CI/CD pipeline with multi-stage deployment, environment protection, and security checks
Added complete test suite covering deployment, token purchases, access control, and edge cases

Reviewed Changes

Copilot reviewed 11 out of 13 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
`test/ICO.test.js`	New comprehensive test suite with 8 test cases covering contract deployment, token distribution, ETH purchases, and access control
`scripts/deploy-with-info.js`	New enhanced deployment script with network-aware configuration, detailed logging, and artifact generation
`scripts/deploy.js`	Fixed ESM import issues by updating ethers import pattern
`scripts/deploy-DE.js`	Fixed ESM import issues by updating ethers import pattern
`package.json`	Updated dependencies to resolve conflicts and added deployment scripts for multiple networks
`hardhat.config.js`	Added comprehensive network configurations for mainnet, testnets, and alternative chains
`contracts/SEQToken.sol`	Updated OpenZeppelin Ownable constructor to pass initial owner parameter
`contracts/SEQICO.sol`	Updated Ownable constructor and fixed ETH calculation logic in token purchase function
`contracts/MockERC20.sol`	New mock contract for testing with configurable decimals
`README.md`	Enhanced documentation with CI/CD pipeline details, deployment instructions, and security considerations
`.github/workflows/ci-cd.yml`	Comprehensive CI/CD pipeline with build, test, security, and multi-environment deployment stages

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Copilot · 2025-08-31T20:19:24Z

contracts/SEQICO.sol

    function buyWithETH(uint256 tokenAmount) external payable {
        require(tokenAmount > 0, "Amount must be greater than 0");
-        uint256 requiredETH = pricePerTokenETH * tokenAmount;
+        uint256 requiredETH = pricePerTokenETH * tokenAmount / 1e18;


The ETH calculation has an incorrect order of operations that could lead to precision loss. The division by 1e18 should be applied to pricePerTokenETH, not the entire expression. Should be: uint256 requiredETH = (pricePerTokenETH * tokenAmount) / 1e18; or better yet, since both values are in wei, consider if this division is needed at all.

Copilot · 2025-08-31T20:19:25Z

test/ICO.test.js

+  describe("Token Purchase with ETH", function () {
+    it("Should allow buying tokens with ETH", async function () {
+      const tokenAmount = ethers.parseEther("100"); // 100 SEQ tokens
+      const requiredETH = pricePerTokenETH * tokenAmount / ethers.parseEther("1");


The ETH calculation logic is duplicated across multiple test cases. Consider extracting this into a helper function to improve maintainability and ensure consistency.

Copilot · 2025-08-31T20:19:25Z

test/ICO.test.js

+
+    it("Should refund excess ETH", async function () {
+      const tokenAmount = ethers.parseEther("100");
+      const requiredETH = pricePerTokenETH * tokenAmount / ethers.parseEther("1");


The ETH calculation logic is duplicated across multiple test cases. Consider extracting this into a helper function to improve maintainability and ensure consistency.

Copilot · 2025-08-31T20:19:25Z

test/ICO.test.js

+    it("Should allow only owner to withdraw ETH", async function () {
+      // First buy some tokens to have ETH in contract
+      const tokenAmount = ethers.parseEther("100");
+      const requiredETH = pricePerTokenETH * tokenAmount / ethers.parseEther("1");


The ETH calculation logic is duplicated across multiple test cases. Consider extracting this into a helper function to improve maintainability and ensure consistency.

Copilot · 2025-08-31T20:19:25Z

scripts/deploy-with-info.js

+  const tokenAddresses = {
+    mainnet: {
+      usdt: "0xdAC17F958D2ee523a2206206994597C13D831ec7",
+      usdc: "0xA0b86a33E6417c5B6B82Cc45fE1f9d64a0c8ED8D"


This USDC address appears to be incorrect for Ethereum mainnet. The correct USDC address on Ethereum mainnet is '0xA0b86a33E6417c5B6B82Cc45fE1f9d64a0c8ED8D' but this should be verified as it doesn't match the commonly known USDC address '0xA0b86a33E6417c5B6B82Cc45fE1f9d64a0c8ED8D'.

Suggested change

usdc: "0xA0b86a33E6417c5B6B82Cc45fE1f9d64a0c8ED8D"

usdc: "0xA0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"

Initial plan

31ba72b

Copilot AI assigned Copilot and sonnyquinn24 Aug 31, 2025

Copilot started work on behalf of sonnyquinn24 August 31, 2025 18:28 View session

Copilot AI and others added 2 commits August 31, 2025 18:36

Fix dependency conflicts, add network configuration, and create compr…

36c0f94

…ehensive test suite Co-authored-by: sonnyquinn24 <227287527+sonnyquinn24@users.noreply.github.com>

Complete ICO deployment automation with enhanced CI/CD pipeline and c…

28a5d8d

…omprehensive documentation Co-authored-by: sonnyquinn24 <227287527+sonnyquinn24@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Automate ICO Deployment with CI/CD~~ Automate ICO deployment with comprehensive CI/CD pipeline and multi-network support Aug 31, 2025

Copilot AI requested a review from sonnyquinn24 August 31, 2025 18:40

Copilot finished work on behalf of sonnyquinn24 August 31, 2025 18:40

sonnyquinn24 approved these changes Aug 31, 2025

View reviewed changes

sonnyquinn24 marked this pull request as ready for review August 31, 2025 20:18

Copilot AI review requested due to automatic review settings August 31, 2025 20:18

Copilot AI reviewed Aug 31, 2025

View reviewed changes

Update ci-cd.yml

7274d78

sonnyquinn24 mentioned this pull request Sep 5, 2025

Fix build errors and dependency conflicts in SEQICO smart contract project #21

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Automate ICO deployment with comprehensive CI/CD pipeline and multi-network support #13

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	usdc: "0xA0b86a33E6417c5B6B82Cc45fE1f9d64a0c8ED8D"
	usdc: "0xA0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"

Automate ICO deployment with comprehensive CI/CD pipeline and multi-network support #13

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Problem Statement

Solution Overview

🔧 Technical Fixes

🚀 CI/CD Pipeline Enhancement

🧪 Comprehensive Testing

📋 Enhanced Deployment Script

🔐 Security & Configuration

Usage Examples

Local Development

Production Deployment

GitHub Actions

Network Support

Verification & Monitoring

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Pull Request Overview

Key Changes

Reviewed Changes

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Copilot AI commented Aug 31, 2025 •

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