Pre-commit hook that prevents you from accidentally git comitting as a different user

pre-commit

#!/bin/bash

# Setup
# touch ~/.git/hooks/pre-commit
# chmod +x ~/.git/hooks/pre-commit
# git config --global core.hooksPath ~/.git/hooks

# Get the current user email
user_email=$(git config --global user.email)
user_email=$(git config --global user.email)

# Define allowed and disallowed email lists (modify as needed)
allowed_emails=(
  "[email protected]"
  "[email protected]"
)

disallowed_emails=(
  "[email protected]"
)

# Check if email is in the allowlist
if [[ ! "${allowed_emails[@]}" =~ "$user_email" ]]; then

  # Check if email is in the disallowlist
  if [[ "${disallowed_emails[@]}" =~ "$user_email" ]]; then
    echo "🛑 Error: Your git user email ($user_email) is disallowed for committing."
  else
    echo "🚨 Error: Your git user email ($user_email) is not authorized to commit. Please use an allowed email address."
  fi

  exit 1  # Exit with non-zero code to abort commit
fi

# If email is allowed, proceed with commit
echo "Current git user email is $user_email"

Use #!/usr/bin/env bash instead of #!/bin/bash.