polybar/doc/zsh/_polybar_msg

#compdef polybar-msg
#
# Completion for polybar-msg (https://github.com/jaagr/polybar)
#   jaagr <c@rlberg.se>
#
_polybar_msg() {
  integer ret=1

  _arguments -n : \
    '-p[Process id of target instance]:process id:_polybar_msg_pids' \
    '(-p)1:message type:(action cmd hook)' \
    '*:: :->args'

  case $state in
    args)
      case $words[1] in
        hook) _arguments ':module name:' ':hook index:'; ret=0 ;;
        action) _arguments ':action payload:'; ret=0 ;;
        cmd) _arguments ':command payload:(show hide toggle restart quit)'; ret=0 ;;
      esac
      ;;
  esac

  return $ret
}

(( $+functions[_polybar_msg_pids] )) || _polybar_msg_pids() {
  local pids; pids=(${(f)"$(ls -1 /tmp/polybar_mqueue.* | egrep -o '[0-9]+$')"})
  _describe -t pids 'process id of target instance' pids
}

_polybar_msg "$@"