How to Use GitHub Copilot for Code Reviews in 15 Minutes

Ever felt overwhelmed by code reviews? You're not alone. For many indie hackers and side project builders, reviewing code can feel like a never-ending task that eats into precious development time. But what if I told you that GitHub Copilot can help streamline your code review process? In this guide, I’ll show you how to leverage Copilot effectively in just 15 minutes.

Prerequisites

Before we dive in, you’ll need a few things ready:

1. GitHub Account: Make sure you have an active GitHub account.
2. Visual Studio Code: Install VS Code, as Copilot integrates seamlessly here.
3. GitHub Copilot: Subscribe to GitHub Copilot. Pricing is $10/mo or $100/year. There's a free trial available for new users.
4. Code Repository: Have a repository ready for review.

Step-by-Step Guide to Using GitHub Copilot for Code Reviews

Step 1: Set Up GitHub Copilot

1. Open VS Code and ensure that you have the GitHub Copilot extension installed. You can find it in the Extensions Marketplace.
2. Sign in to your GitHub account within VS Code to activate Copilot.

Step 2: Load Your Code Review

1. Open the Pull Request you want to review in VS Code.
2. Use the GitHub Pull Requests extension to fetch the changes you need to review.

Step 3: Start Reviewing Code with Copilot

1. Navigate to the Code: Go through the changes in the pull request.
2. Ask Copilot for Suggestions: Place your cursor where you want Copilot to assist. For example, you can type a comment like // What does this function do? and Copilot will suggest explanations or improvements.
3. Review Suggestions: Accept or modify Copilot's suggestions as needed. This can speed up your review significantly.

Step 4: Provide Feedback

1. Comment on the Pull Request: Use Copilot’s suggestions to inform your comments. You can say things like, “I think this could be improved by…” based on what Copilot suggested.
2. Document Any Issues: If Copilot suggests an error, document it clearly in your review comments.

Step 5: Finalize and Approve

1. Once you’ve gone through the code and provided feedback, you can approve the pull request if everything looks good.
2. Use Copilot again: If you need to suggest any changes before approval, you can ask Copilot for code snippets or refactoring tips.

What Could Go Wrong

• Over-reliance on Suggestions: Copilot isn’t perfect. It can suggest suboptimal code, so always review suggestions critically.
• Context Misunderstanding: Sometimes, Copilot may not fully understand the context of your code. Make sure to verify its suggestions against your project needs.

Pricing Breakdown

| Tool | Pricing | Best For | Limitations | Our Take | |---------------------------|-------------------------|----------------------------|-----------------------------------------------|---------------------------| | GitHub Copilot | $10/mo, $100/year | Code reviews & suggestions | Can suggest incorrect code | We use this for quick reviews | | CodeClimate | $16/user/mo | Code quality checks | Expensive for small teams | We don’t use this due to cost | | SonarQube | Free tier + $150/mo | Static code analysis | Setup can be complex | Only for larger projects | | Reviewable | $39/mo | Review management | Limited integrations | We don’t use this | | Crucible | $50/user/mo | Peer code reviews | High cost for small teams | Not suitable for indie projects | | PullReview | $50/mo | Automated code reviews | No free tier | We prefer Copilot |

What's Next

After you get comfortable using Copilot for code reviews, consider exploring its capabilities for code generation and pair programming. You can also integrate it with other tools for a more robust development workflow.

Conclusion

If you’re looking to speed up your code review process, GitHub Copilot is a practical tool that can help. It’s not a replacement for thorough reviews, but it can assist in providing insights and suggestions that make the process smoother. Start by setting it up in your VS Code and try it out on your next pull request.