🪝 Git Hooks in Alpine Linux: Simple Guide

Make Git do cool things automatically! Git hooks are like little helpers that run when you commit code. 💻 They save you time and catch mistakes! 😊

🤔 What are Git Hooks?

Git hooks are scripts that run at special times. They work like magic!

Git hooks are like:

• 📝 Automatic spell checkers for code
• 🔧 Helpers that do boring tasks
• 💡 Smart assistants for your projects

🎯 What You Need

Before we start, you need:

• ✅ Alpine Linux installed
• ✅ Git installed
• ✅ Basic terminal knowledge
• ✅ A Git repository

📋 Step 1: Find Your Git Hooks

Locate the Hooks Folder

Let’s find where Git keeps hooks. It’s easy! 😊

What we’re doing: Finding the Git hooks directory.

# Go to your Git project
cd /path/to/your/project

# Look at hooks folder
ls -la .git/hooks/

What this does: 📖 Shows all available hook templates.

Example output:

applypatch-msg.sample
commit-msg.sample
pre-commit.sample

What this means: These are example hooks! ✅

💡 Important Tips

Tip: Hooks are just scripts! 💡

Warning: Test hooks before using! ⚠️

🛠️ Step 2: Create Your First Hook

Making a Simple Pre-commit Hook

Now let’s make a helpful hook. Don’t worry - it’s still easy! 😊

What we’re doing: Creating a hook that checks code.

# Create pre-commit hook
touch .git/hooks/pre-commit

# Make it executable
chmod +x .git/hooks/pre-commit

Code explanation:

• touch: Creates new file
• chmod +x: Makes file runnable

Expected Output:

✅ Success! Hook file created.

What this means: Great job! Your hook is ready! 🎉

🎮 Let’s Try It!

Time for hands-on practice! This is the fun part! 🎯

What we’re doing: Making a hook that says hello.

# Edit the hook file
echo '#!/bin/sh' > .git/hooks/pre-commit
echo 'echo "Hello! Checking your code... 🔍"' >> .git/hooks/pre-commit

# Test it with a commit
git add .
git commit -m "Test commit"

You should see:

Hello! Checking your code... 🔍

Awesome work! 🌟

📊 Quick Summary Table

🎮 Practice Time!

Let’s practice what you learned! Try these simple examples:

Example 1: Check for TODOs 🟢

What we’re doing: Finding forgotten TODOs.

#!/bin/sh
# Check for TODO comments
if grep -r "TODO" .; then
    echo "⚠️ Found TODOs! Fix them first!"
    exit 1
fi
echo "✅ No TODOs found!"

What this does: Stops commits with TODOs! 🌟

Example 2: Run Tests 🟡

What we’re doing: Testing code before commit.

#!/bin/sh
# Run simple tests
echo "🧪 Running tests..."

# Your test command here
if [ -f "test.sh" ]; then
    ./test.sh
fi

echo "✅ Tests passed!"

What this does: Makes sure code works! 📚

🚨 Fix Common Problems

Problem 1: Hook not running ❌

What happened: Hook not executable. How to fix it: Add execute permission!

# Fix permission
chmod +x .git/hooks/pre-commit

Problem 2: Hook fails always ❌

What happened: Script has error. How to fix it: Check your code!

# Test hook manually
sh .git/hooks/pre-commit

Don’t worry! These problems happen to everyone. You’re doing great! 💪

💡 Simple Tips

1. Start simple 📅 - Basic hooks first
2. Test locally 🌱 - Try before sharing
3. Add comments 🤝 - Explain what it does
4. Keep it fast 💪 - Quick hooks are best

✅ Check Everything Works

Let’s make sure everything is working:

# Create test commit
echo "test" > test.txt
git add test.txt
git commit -m "Testing hooks"

# You should see this
echo "Everything is working! ✅"

Good output:

✅ Success! Hook ran perfectly.

🏆 What You Learned

Great job! Now you can:

• ✅ Create Git hooks
• ✅ Automate Git tasks
• ✅ Check code quality
• ✅ Save time coding!

🎯 What’s Next?

Now you can try:

• 📚 Learning more hook types
• 🛠️ Sharing hooks with team
• 🤝 Building better workflows
• 🌟 Making coding easier!

Remember: Every expert was once a beginner. You’re doing amazing! 🎉

Keep practicing and you’ll become an expert too! 💫