picomap/cmd/info/main.go

package main

import (
	"fmt"
	"net"
	"os"
	"sync"
	"time"

	"github.com/theater/picomap/lib/client"
)

type deviceResult struct {
	dev  string
	info *client.ResponseInfo
	err  error
}

func main() {
	if err := run(); err != nil {
		fmt.Fprintf(os.Stderr, "error: %v\n", err)
		os.Exit(1)
	}
}

func run() error {
	devs, err := client.ListSerial()
	if err != nil {
		return err
	}
	if len(devs) == 0 {
		return fmt.Errorf("no devices found")
	}

	results := make([]deviceResult, len(devs))
	var wg sync.WaitGroup
	for i, dev := range devs {
		results[i].dev = dev
		wg.Go(func() {
			c, err := client.NewSerial(dev, 2*time.Second)
			if err != nil {
				results[i].err = err
				return
			}
			info, err := c.Info()
			c.Close()
			results[i].info = info
			results[i].err = err
		})
	}
	wg.Wait()

	for _, r := range results {
		fmt.Printf("Device: %s\n", r.dev)
		if r.err != nil {
			fmt.Fprintf(os.Stderr, "  error: %v\n", r.err)
			continue
		}
		fmt.Printf("  Board ID: %02X%02X%02X%02X%02X%02X%02X%02X\n",
			r.info.BoardID[0], r.info.BoardID[1], r.info.BoardID[2], r.info.BoardID[3],
			r.info.BoardID[4], r.info.BoardID[5], r.info.BoardID[6], r.info.BoardID[7])
		fmt.Printf("  MAC: %s\n", net.HardwareAddr(r.info.MAC[:]))
		fmt.Printf("  IP: %s\n", net.IP(r.info.IP[:]))
		fmt.Printf("  Firmware: %s\n", r.info.FirmwareName)
	}

	return nil
}