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// Copyright (c) 2015, Daniel Martà <mvdan@mvdan.cc>
// See LICENSE for licensing information
package main
import (
"fmt"
"mvdan.cc/fdroidcl/adb"
)
var cmdDevices = &Command{
UsageLine: "devices",
Short: "List connected devices",
}
func init() {
cmdDevices.Run = runDevices
}
func runDevices(args []string) error {
if err := startAdbIfNeeded(); err != nil {
return err
}
devices, err := adb.Devices()
if err != nil {
return fmt.Errorf("could not get devices: %v", err)
}
for _, device := range devices {
fmt.Printf("%s - %s (%s)\n", device.ID, device.Model, device.Product)
}
return nil
}
func startAdbIfNeeded() error {
if adb.IsServerRunning() {
return nil
}
if err := adb.StartServer(); err != nil {
return fmt.Errorf("could not start ADB server: %v", err)
}
return nil
}
func maybeOneDevice() (*adb.Device, error) {
if err := startAdbIfNeeded(); err != nil {
return nil, err
}
devices, err := adb.Devices()
if err != nil {
return nil, fmt.Errorf("could not get devices: %v", err)
}
if len(devices) > 1 {
return nil, fmt.Errorf("at most one connected device can be used")
}
if len(devices) < 1 {
return nil, nil
}
return devices[0], nil
}
func oneDevice() (*adb.Device, error) {
device, err := maybeOneDevice()
if err == nil && device == nil {
err = fmt.Errorf("a connected device is needed")
}
return device, err
}
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