feat: integrate Gemini with GitHub

[ice-deimos]

Description

integrate Gemini with GitHub

Additional Notes

Task ID

Type of Change

• Bug fix
• New feature
• Breaking change
• Refactoring
• Documentation
• Chore

Screenshots (if applicable)

[github-actions]

🤖 Gemini 2.5 Flash Code Review

As a Senior Software Engineer, I've reviewed the proposed changes for integrating a Gemini AI Code Review into your GitHub Actions workflow. Overall, this is a well-structured and promising addition.

Here are my observations focusing on potential bugs, security, and readability:

---

General Comments

The setup is quite clean, and the script handles API interactions and basic error checking effectively. The idea of truncating large diffs is a practical approach to avoid hitting API limits.

---

.github/workflows/gemini_workflow.yml

1. Potential Bugs or Logic Errors:

   • Python Version: While 3.9 works, consider upgrading to a more recent LTS version like 3.10 or 3.11 for continued support and access to newer language features, unless there's a specific compatibility reason to stick with 3.9.

2. Security Vulnerabilities:

   • Permissions - issues: write: For simply posting a comment on a Pull Request, pull-requests: write is typically sufficient. issues: write grants broader permissions (e.g., creating/editing issues). To adhere to the principle of least privilege, consider removing issues: write if it's not explicitly needed for other actions within this workflow.

3. Code Readability and Style Improvements:

   • Trailing Newline: Best practice for YAML files (and text files in general) is to end with a newline character. The current diff indicates \ No newline at end of file.

---

scripts/review_pr.py

1. Potential Bugs or Logic Errors:

   • Missing Environment Variable Checks: You have a good check for GEMINI_API_KEY. However, GITHUB_TOKEN, REPO_NAME, and PR_NUMBER are equally critical for the script's operation. If any of these are missing, the script will fail later with less descriptive errors. Add similar checks for these variables at the start.

     if not GITHUB_TOKEN:
         raise ValueError("GITHUB_TOKEN is missing")
     if not REPO_NAME:
         raise ValueError("GITHUB_REPOSITORY is missing") # Corresponds to GITHUB_REPOSITORY env var
     if not PR_NUMBER:
         raise ValueError("PR_NUMBER is missing")

   • Diff Truncation Logging: When the diff is truncated (due to len(diff_text) > 100000), it would be beneficial to log a message indicating that truncation occurred. This helps in debugging or understanding why a review might seem incomplete for very large PRs.

     if len(diff_text) > 100000:
         print(f"Warning: Diff truncated from {len(diff_text)} to 100000 characters.")
         diff_text = diff_text[:100000] + "\n...(truncated due to size limit)"

   • Error Handling for Gemini API: While try...except Exception as e catches all errors, for production systems, it's often better to catch more specific exceptions (e.g., from google.generativeai library) if they are documented, to differentiate between network issues, API errors, or other problems. This is a minor point for a utility script, but good to keep in mind for robustness.

2. Security Vulnerabilities:

   • None identified. Environment variables are correctly used for sensitive information.

3. Code Readability and Style Improvements:

   • Docstrings: Add clear docstrings to your functions (get_pr_diff, post_comment, review_code) to explain their purpose, arguments, and what they return/do. This significantly improves maintainability.
   • PEP 8 Blank Lines: Python's PEP 8 style guide recommends two blank lines before the if __name__ == "__main__": block.
   • Trailing Newline: Similar to the YAML file, Python script files should end with a newline character.

---

Final Recommendation

This is a solid start. Address the missing environment variable checks for robustness and consider the minor security/readability suggestions to make it even better.

Approval: With the suggested improvements, I would approve this PR.

[ice-orion]

Does it make much sense to review only the "diff" without having the whole codebase as context?

[ice-deimos]

Yes, but we have many limitation to send all codebase, lets try this "light" option as "Super Linter" with advances

Later we cantry The Official Integration:

If you have a Google Cloud or Gemini Code Assist license, you can simply install the official app.
Go to the GitHub Marketplace.
Search for Gemini Code Assist.
Install it on your organization or repository.
It will automatically start adding "Summaries" to your Pull Requests and allow you to use /gemini commands in comments.

[ice-cerberus]

hmmm, maybe add svgs as well?

[ice-cerberus]

I think linters already do that