lolcatme.bash

function lolcatme() {
  which -s lolcat
  if [ $? -ne 0 ]; then
    echo no lolcat
    return 0
  fi

  if [[ "$BASH_COMMAND" == "$PROMPT_COMMAND" ]]; then
    return 0
  fi

  if [ -e /etc/bashrc_Apple_Terminal ]; then
    grep -F --quiet "'$BASH_COMMAND'" /etc/bashrc_Apple_Terminal
    if [ $? -eq 0 ]; then
      echo terminal boot sequence
      return 0
    fi
  fi

  unsafe_commands=('vi' 'vim' 'nano' 'emacs' 'open' 'bash' 'fish' 'zsh' 'man')
  unsafe_commands+=('shell_session_history_check' 'update_terminal_cwd')
  for cmd in "${unsafe_commands[@]}"; do
    if [[ "'"$BASH_COMMAND"'" =~ $cmd.* ]]; then
      echo unsafe command: $BASH_COMMAND
      return 0
    fi
  done

  $BASH_COMMAND | lolcat
  return 2
}

shopt -s extdebug

trap 'lolcatme' DEBUG

lolcatme.fish

function fish_user_key_bindings
  bind \r 'lolcatme'
end

function lolcatme
  set -l cmd (commandline)
  set -l first (commandline --tokenize)[1]

  if not contains $first vi vim emacs nano open bash fish zsh
    commandline --append ' | lolcat'
  end

  commandline -f execute
end

lolcatme.zsh

setopt DEBUG_BEFORE_CMD

function lolcatme() {
  eval ${ZSH_DEBUG_CMD} | lolcat
  setopt ERR_EXIT
}

trap 'lolcatme' DEBUG