if which brew >/dev/null 2>&1; then
  BREW_PREFIX=$(brew --prefix)

  if [ -f "$BREW_PREFIX"/etc/bash_completion.d/brew ]; then
    . "$BREW_PREFIX"/etc/bash_completion.d/brew
  fi

  if [ -f "$BREW_PREFIX"/Library/Contributions/brew_bash_completion.sh ]; then
    . "$BREW_PREFIX"/Library/Contributions/brew_bash_completion.sh
  fi

  # For the git-clone based installation, see here for more info:
  # https://github.com/Bash-it/bash-it/issues/1458
  # https://docs.brew.sh/Shell-Completion   
  if [ -f "$BREW_PREFIX"/completions/bash/brew ]; then
    . "$BREW_PREFIX"/completions/bash/brew
  fi
fi