The Automated Rituals

You learned about Git Submodules by nesting one notebook inside another for modular projects. But hackers love automation. Imagine if every time you committed code, your notebook automatically checked spelling, ran tests, or sent a reminder.

That’s the magic of Git Hooks. These scripts that run automatically when certain Git events occur.

What are Git Hooks?

• Definition: Git Hooks are scripts triggered by Git actions (like commit, push, or merge).
• Location: They live in the .git/hooks/ directory of your repository.
• Purpose: You can customize them to enforce rules, run checks, or automate tasks.

Think of Git Hooks as rituals in your hacker’s notebook automatic ceremonies that happen whenever you perform key actions.

Types of Git Hooks

✅ Client‑Side Hooks

Run on your local machine during actions like:

• pre‑commit → Runs before a commit is finalized (e.g. linting code).
• commit‑msg → Validates commit messages.
• pre‑push → Runs before pushing to a remote (e.g. running tests).

✅ Server‑Side Hooks

Run on the Git server during actions like:

• pre‑receive → Checks incoming commits before accepting them.
• update → Validates branch updates.
• post‑receive → Triggers deployments or notifications after receiving commits.

Quick: Pre‑Commit Hook

Create a file in .git/hooks/pre-commit and add:

#!/bin/sh
npm test

This ensures tests run automatically before every commit.

Make it executable:

chmod +x .git/hooks/pre-commit

Benefits of Git Hooks

• Automation: Save time by running scripts automatically.
• Quality Control: Prevent bad commits or pushes.
• Consistency: Enforce coding standards across the team.
• Integration: Connect Git actions to CI/CD pipelines or notifications.

The Hackers Notebook

Git Hooks are the rituals of your hacker’s notebook. They ensure every commit, push, or merge follows the rules, keeping your project disciplined and professional. Hackers use them to automate repetitive tasks and enforce standards without manual effort.

Think of it this way: if your school project had hooks, every time someone submitted a draft, it could automatically check grammar before accepting it. 🚀✨