What are custom pre-commit hooks and how do I create them?

What are custom pre-commit hooks and how do I create them?

Custom pre-commit hooks are scripts that run automatically before a commit is made in Git. They help enforce coding standards, run tests, or perform other checks.

Can you give me an example of a simple pre-commit hook?

Sure! A simple pre-commit hook could check for trailing whitespace in your code. You can create a file named pre-commit in the .git/hooks/ directory with the following content:

#!/bin/sh
if git diff --cached --check; then
  echo "No trailing whitespace found."
else
  echo "Error: Trailing whitespace detected!"
  exit 1
fi

How do I make the hook executable?

You can make the hook executable by running the command chmod +x .git/hooks/pre-commit in your terminal.

Can I use pre-commit hooks with other programming languages?

Yes, you can use pre-commit hooks with any programming language. Just write the script in the language of your choice and ensure it runs correctly in your environment.