🚀 PR Summarizer: Making Code Reviews Fun and Efficient

👋 A Developer’s Struggle with PR Reviews

It was another late night. Coffee in one hand, I clicked on yet another pull request with 37 file changes. 😩

"Alright, let’s go through this."

Five minutes in, I was already scrolling endlessly through modified files, trying to figure out:

  • What actually changed?
  • Why were these changes made?
  • Do I really have to read every file to understand?

By the time I got halfway, my focus was gone, and I hadn’t even left a single review comment yet.

And then it hit me:

Why do we still manually analyze PRs in 2025? Can’t we automate this?

That’s when I decided to build PR Summarizer—a tool that does the hard work for you and even makes code reviews fun! 🎉

🚀 Meet PR Summarizer

PR Summarizer is a Custom GitHub Action written in Rust 🦀 that:

✅ Detects modified, added, and deleted files

📜 Generates a clean summary of PR changes

💬 Posts a helpful comment on the PR

🤣 Includes a random programming joke (because why not?)

🎯 The Problem: Code Reviews Are Overwhelming

PRs can be a nightmare, especially when they:

  • Contain too many files
  • Lack a clear description
  • Have vague commit messages

This wastes time, slows down development, and makes reviewing a chore. 😤

💡 The Solution?

🚀 PR Summarizer automates PR analysis so you can:

✔ Quickly understand changes at a glance

✔ Save time reviewing PRs

✔ Enjoy a fun programming joke along the way 😆

🔥 Example Output

Imagine opening a PR and instantly seeing this comment:

🚀 PR Summary

📝 Changes Overview

✨ Implemented user authentication

✅ Added JWT token handling

✅ Created registration API

📚 Updated API docs

📂 Affected Files

🟢 [+] src/auth/jwt.rs

🔵 [M] src/routes/users.rs

🔵 [M] README.md

😄 Code Humor

"Why do programmers prefer dark mode? Because light attracts bugs!" 🤓

Now, reviewers immediately understand the changes without digging through commits.

⚙️ How It Works

1️⃣ A PR is opened or updated

2️⃣ PR Summarizer analyzes the changes

3️⃣ It creates a summary

4️⃣ It fetches a joke

5️⃣ It posts everything as a comment

All automated. No extra work needed. 🎉

🚀 How to Use It

Add this workflow to your repo’s .github/workflows/pr-summary.yml:

name: PR Summarizer

on:
  pull_request:
    types: [opened, synchronize, reopened]

permissions:
  pull-requests: write  # Required to comment on PRs
  issues: write        # Required for PR comments via issues API

jobs:
  summarize:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3
        with:
          fetch-depth: 0  # Ensures full history for diff analysis

      - name: Run PR Summarizer
        uses: bansikah22/[email protected]  # Uses the lastest actions tag
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}

That’s it! PR Summarizer will now automatically summarize every PR in your repo.

🔧 Development

Want to contribute or run it locally? Here’s what you need:

  • Rust 1.83+ 🦀
  • Cargo 📦

Clone the repo and start hacking:

git clone https://github.com/bansikah22/pr-summarizer.git
cd pr-summarizer
cargo build

🌎 See It in Action

Check out Test PR Summarizer to see it working on external PRs!

🔥 Final Thoughts

Code reviews don’t have to be boring or time-consuming. PR Summarizer makes them:

✅ Faster 🚀

✅ Simpler 🎯

✅ More fun 😆

If you find this useful, give it a ⭐ on GitHub and try it out! Please give me some feedback or maybe some suggestions on new feature on how We can better develop this.

👉 GitHub Repo: PR Summarizer

Happy coding! 😃