Contents

#!/usr/bin/env ruby

require 'douban.fm.arduino'
require 'optparse'
require 'ostruct'
require 'serialport'
require 'net/http'

class DoubanFMArduinoCLI
  def parse
    options = OpenStruct.new
    options.verbose = false

    opts = OptionParser.new do |opts|
      opts.banner = "Usage: #{File.basename($PROGRAM_NAME)} [OPTIONS]"

      opts.on('-d', '--device device',
              'the serial device where to read arduino serial output',
              'usually it is /dev/tty.usbserial-*') do |device|
        options.device = device
      end

      opts.on('-r', '--remote remote',
              'remote host where douban.fm is running, in format of <IP>:<Port>',
              'by deafult it is localhost:3000') do |remote|
        unless remote.split(':').length == 2
          puts opts
          exit
        end

        options.remote = remote
      end

      opts.on('-v', '--version', 'show current version') do
        puts DoubanFM::VERSION
        exit
      end

      opts.on_tail('-h', '--help', 'show this message') do
        puts opts
        exit
      end
    end

    opts.parse!

    options
  end

  def main
    options = parse

    if options.device.nil?
      puts 'device must be specified'
      exit
    end

    if options.remote.nil?
      options.remote = 'localhost:3000'
    end

    port_str = options.device
    baud_rate = 9600
    data_bits = 8 
    stop_bits = 1 
    parity = SerialPort::NONE
 

    sp = SerialPort.new(port_str, baud_rate, data_bits, stop_bits, parity)

    %w[INT TERM].each do |signal|
      trap(signal) do
        sp.close
        puts 'stopped'
        exit
      end 
    end 
 
    puts 'started'

    while true do
      while (channel_id = sp.gets.chomp) do
        uri = URI("http://#{options.remote}/channel/#{channel_id}")
        Net::HTTP.get(uri)
      end 
    end
  end
end

DoubanFMArduinoCLI.new.main

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
douban.fm.arduino-0.1.1	bin/douban.fm.arduino
douban.fm.arduino-0.1.0	bin/douban.fm.arduino