newtmgr/cli/datetime.go

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package cli

import (
	"fmt"

	"github.com/spf13/cobra"
	"mynewt.apache.org/newt/newtmgr/protocol"
	"mynewt.apache.org/newt/util"
)

func dateTimeCmd(cmd *cobra.Command, args []string) {
	runner, err := getTargetCmdRunner()
	if err != nil {
		nmUsage(cmd, err)
	}
	defer runner.Conn.Close()

	dateTime, err := protocol.NewDateTime()
	if err != nil {
		nmUsage(cmd, err)
	}

	if len(args) > 0 {
		dateTime.DateTime = args[0]
	}
	nmr, err := dateTime.EncodeRequest()
	if err != nil {
		nmUsage(cmd, err)
	}

	if err := runner.WriteReq(nmr); err != nil {
		nmUsage(cmd, err)
	}

	rsp, err := runner.ReadResp()
	if err != nil {
		nmUsage(cmd, err)
	}

	iRsp, err := protocol.DecodeDateTimeResponse(rsp.Data)
	if err != nil {
		nmUsage(cmd, err)
	}

	err_str := "Need to specify a datetime in RFC 3339 format\n"

	if len(args) > 1 {
		nmUsage(cmd, util.NewNewtError(err_str))
	} else if len(args) == 1 {
		if iRsp.Return != 0 {
			nmUsage(cmd, util.NewNewtError(fmt.Sprintf("Return:%d\n%s",
				iRsp.Return, err_str)))
		} else {
			fmt.Println("Return:", iRsp.Return)
		}
	} else if len(args) == 0 {
		fmt.Println("Datetime(RFC 3339 format):", iRsp.DateTime)
	}
}

func dTimeCmd() *cobra.Command {
	dateTimeHelpText := "Display or set datetime on a device. "
	dateTimeHelpText += "Specify a datetime-value\n"
	dateTimeHelpText += "to set the datetime on the device.\n\n"
	dateTimeHelpText += "Must specify datetime-value in RFC 3339 format.\n"

	dateTimeEx := "newtmgr datetime -c myserial\n"
	dateTimeEx += "newtmgr datetime 2016-03-02T22:44:00 -c myserial"
	dateTimeEx += "             (implicit UTC) \n"
	dateTimeEx += "newtmgr datetime 2016-03-02T22:44:00Z -c myserial"
	dateTimeEx += "            (explicit UTC)\n"
	dateTimeEx += "newtmgr datetime 2016-03-02T22:44:00-08:00 -c myserial"
	dateTimeEx += "       (PST)\n"
	dateTimeEx += "newtmgr datetime 2016-03-02T22:44:00.1 -c myserial"
	dateTimeEx += "           (fractional secs)\n"
	dateTimeEx += "newtmgr datetime 2016-03-02T22:44:00.101+05:30 -c myserial"
	dateTimeEx += "   (fractional secs + timezone)\n"

	dateTCmd := &cobra.Command{
		Use:     "datetime [datetime-value] -c <conn_profile>",
		Short:   "Manage datetime on a device",
		Long:    dateTimeHelpText,
		Example: dateTimeEx,
		Run:     dateTimeCmd,
	}

	return dateTCmd
}