show execution time zsh code example

Example: execution time oh my zsh

function preexec() {
  timer=${timer:-$SECONDS}
}

function precmd() {
  if [ $timer ]; then
    timer_show=$(($SECONDS - $timer))
    if [[ $timer_show -ge $min_show_time ]]; then
      RPROMPT='%{$fg_bold[red]%}(${timer_show}s)%f%{$fg_bold[white]%}[%*]%f'
    else
      RPROMPT='%{$fg_bold[white]%}[%*]%f'
    fi
    unset timer
  fi
}

autoload -Uz add-zsh-hook
add-zsh-hook preexec preexec
add-zsh-hook precmd precmd
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