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update.go
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update.go
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/*
Copyright IBM Corp. 2017 All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package channel
import (
"errors"
"fmt"
"io/ioutil"
"github.com/hyperledger/fabric/internal/peer/common"
"github.com/hyperledger/fabric/protoutil"
"github.com/spf13/cobra"
)
func updateCmd(cf *ChannelCmdFactory) *cobra.Command {
updateCmd := &cobra.Command{
Use: "update",
Short: "Send a configtx update.",
Long: "Signs and sends the supplied configtx update file to the channel. Requires '-f', '-o', '-c'.",
RunE: func(cmd *cobra.Command, args []string) error {
return update(cmd, args, cf)
},
}
flagList := []string{
"channelID",
"file",
}
attachFlags(updateCmd, flagList)
return updateCmd
}
func update(cmd *cobra.Command, args []string, cf *ChannelCmdFactory) error {
//the global chainID filled by the "-c" command
if channelID == common.UndefinedParamValue {
return errors.New("Must supply channel ID")
}
if channelTxFile == "" {
return InvalidCreateTx("No configtx file name supplied")
}
// Parsing of the command line is done so silence cmd usage
cmd.SilenceUsage = true
var err error
if cf == nil {
cf, err = InitCmdFactory(EndorserNotRequired, PeerDeliverNotRequired, OrdererNotRequired)
if err != nil {
return err
}
}
fileData, err := ioutil.ReadFile(channelTxFile)
if err != nil {
return ConfigTxFileNotFound(err.Error())
}
ctxEnv, err := protoutil.UnmarshalEnvelope(fileData)
if err != nil {
return err
}
sCtxEnv, err := sanityCheckAndSignConfigTx(ctxEnv, cf.Signer)
if err != nil {
return err
}
var broadcastClient common.BroadcastClient
broadcastClient, err = cf.BroadcastFactory()
if err != nil {
return fmt.Errorf("Error getting broadcast client: %s", err)
}
defer broadcastClient.Close()
err = broadcastClient.Send(sCtxEnv)
if err != nil {
return err
}
logger.Info("Successfully submitted channel update")
return nil
}