Pull Request Review Action - GitHub Action

A GitHub Action that uses Google's Gemini AI to analyze pull requests and identify potential bugs, performance improvements, and suggest code enhancements.

Features

• 🔍 Automatically analyzes pull requests when they are opened or reopened
• 🐛 Identifies potential bugs in code changes
• ⚡ Suggests performance optimizations
• 💡 Provides intelligent code improvement suggestions
• 🤖 Powered by Google's Gemini AI model

Setup

1. Add this action to your repository's workflow:

on:
  pull_request:
    types: [opened, reopened]

jobs:
  pr_review:
    runs-on: ubuntu-latest
    name: A job to review a PR with an LLM
    permissions:
      contents: write
      issues: write
      pull-requests: write
    steps:
      - name: Checkout action
        uses: actions/checkout@v4
      - name: Install action packages
        shell: 'bash'
        run: npm install
      - name: PullRequestReviewAction
        uses: .github/actions
        id: pr_review
        with:
          githubToken: ${{ secrets.GITHUB_TOKEN }}
          geminiApiKey: ${{ secrets.GEMINI_API_KEY }}
      - name: Get the output time
        run: echo "The time was ${{ steps.review_pr.outputs.time }}"

2. Set up the required secrets in your repository:
   • GITHUB_TOKEN: Automatically provided by GitHub
   • GEMINI_API_KEY: Your Google Gemini API key

How it Works

When a pull request is opened or reopened, the action:

1. Retrieves the changes made in the pull request
2. Analyzes the code changes using Gemini AI
3. Generates a detailed review that includes:
   • Initial analysis of changes
   • Potential bugs and issues
   • Performance optimization suggestions
   • Code improvement recommendations
   • Confidence score for the suggestions

Dependencies

• @actions/core: ^1.10.1
• @actions/github: ^6.0.0
• @google/generative-ai: ^0.11.5
• mustache: ^4.2.0

Development

# Install dependencies
bun install

# Build the action
bun run build

# Compile the action
bun run compile

License

This project is licensed under the terms specified in the repository's license file.