itd/cmd/itctl/cmd/time.go

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/*
* itd uses bluetooth low energy to communicate with InfiniTime devices
* Copyright (C) 2021 Arsen Musayelyan
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd
import (
"bufio"
"encoding/json"
"net"
"github.com/rs/zerolog/log"
"github.com/spf13/cobra"
"go.arsenm.dev/itd/internal/types"
)
// timeCmd represents the time command
var timeCmd = &cobra.Command{
Use: `time <ISO8601|"now">`,
Short: "Set InfiniTime's clock to specified time",
Run: func(cmd *cobra.Command, args []string) {
// Ensure required arguments
if len(args) != 1 {
cmd.Usage()
log.Warn().Msg("Command time requires one argument")
return
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}
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// Connect to itd UNIX socket
conn, err := net.Dial("unix", SockPath)
if err != nil {
log.Fatal().Err(err).Msg("Error dialing socket. Is itd running?")
}
defer conn.Close()
// Encode request into connection
err = json.NewEncoder(conn).Encode(types.Request{
Type: ReqTypeSetTime,
Data: args[0],
})
if err != nil {
log.Fatal().Err(err).Msg("Error making request")
}
// Read one line from connetion
line, _, err := bufio.NewReader(conn).ReadLine()
if err != nil {
log.Fatal().Err(err).Msg("Error reading line from connection")
}
var res types.Response
// Decode line into response
err = json.Unmarshal(line, &res)
if err != nil {
log.Fatal().Err(err).Msg("Error decoding JSON data")
}
if res.Error {
log.Fatal().Msg(res.Message)
}
},
}
func init() {
setCmd.AddCommand(timeCmd)
}