Git pre-commit and pre-push hooks to avoid accidental main / master branch commits / pushes

README.md

1. Save files to ~/.git/hooks/
2. Make them executable: chmod +x ~/.git/hooks/pre-{commit,push}
3. Configure git to use these hooks: git config --global core.hooksPath ~/.git/hooks

pre-commit

#!/usr/bin/env bash

# This hook asks the user for confirmation before committing to the main/master branch

current_branch="$(git branch --show-current)"
protected_branch_regex='^(main|master)$'

if [[ "$current_branch" =~ $protected_branch_regex ]]; then
  prompt="You're about to commit to ${current_branch}, is that what you intended? [y|n] "
  read -p "${prompt}" -n 1 -r response < /dev/tty
  echo
  if echo "${response}" | grep --extended-regexp '^[Yy]$' > /dev/null; then
    exit 0 # commit will execute
  fi
  exit 1 # commit will be aborted
fi

pre-push

#!/usr/bin/env bash

# This hook asks the user for confirmation before pushing the main/master branch

current_branch="$(git branch --show-current)"
protected_branch_regex='^(main|master)$'

if [[ "$current_branch" =~ $protected_branch_regex ]]; then
  prompt="You're about to push ${current_branch}, is that what you intended? [y|n] "
  read -p "${prompt}" -n 1 -r response < /dev/tty
  echo
  if echo "${response}" | grep --extended-regexp '^[Yy]$' > /dev/null; then
    exit 0 # push will execute
  fi
  exit 1 # push will be aborted
fi