github.com/defanghe/fabric@v2.1.1+incompatible/internal/peer/channel/update.go (about)

     1  /*
     2  Copyright IBM Corp. 2017 All Rights Reserved.
     3  
     4  SPDX-License-Identifier: Apache-2.0
     5  */
     6  
     7  package channel
     8  
     9  import (
    10  	"errors"
    11  	"fmt"
    12  	"io/ioutil"
    13  
    14  	"github.com/hyperledger/fabric/internal/peer/common"
    15  	"github.com/hyperledger/fabric/protoutil"
    16  	"github.com/spf13/cobra"
    17  )
    18  
    19  func updateCmd(cf *ChannelCmdFactory) *cobra.Command {
    20  	updateCmd := &cobra.Command{
    21  		Use:   "update",
    22  		Short: "Send a configtx update.",
    23  		Long:  "Signs and sends the supplied configtx update file to the channel. Requires '-f', '-o', '-c'.",
    24  		RunE: func(cmd *cobra.Command, args []string) error {
    25  			return update(cmd, args, cf)
    26  		},
    27  	}
    28  	flagList := []string{
    29  		"channelID",
    30  		"file",
    31  	}
    32  	attachFlags(updateCmd, flagList)
    33  
    34  	return updateCmd
    35  }
    36  
    37  func update(cmd *cobra.Command, args []string, cf *ChannelCmdFactory) error {
    38  	//the global chainID filled by the "-c" command
    39  	if channelID == common.UndefinedParamValue {
    40  		return errors.New("Must supply channel ID")
    41  	}
    42  
    43  	if channelTxFile == "" {
    44  		return InvalidCreateTx("No configtx file name supplied")
    45  	}
    46  	// Parsing of the command line is done so silence cmd usage
    47  	cmd.SilenceUsage = true
    48  
    49  	var err error
    50  	if cf == nil {
    51  		cf, err = InitCmdFactory(EndorserNotRequired, PeerDeliverNotRequired, OrdererNotRequired)
    52  		if err != nil {
    53  			return err
    54  		}
    55  	}
    56  
    57  	fileData, err := ioutil.ReadFile(channelTxFile)
    58  	if err != nil {
    59  		return ConfigTxFileNotFound(err.Error())
    60  	}
    61  
    62  	ctxEnv, err := protoutil.UnmarshalEnvelope(fileData)
    63  	if err != nil {
    64  		return err
    65  	}
    66  
    67  	sCtxEnv, err := sanityCheckAndSignConfigTx(ctxEnv, cf.Signer)
    68  	if err != nil {
    69  		return err
    70  	}
    71  
    72  	var broadcastClient common.BroadcastClient
    73  	broadcastClient, err = cf.BroadcastFactory()
    74  	if err != nil {
    75  		return fmt.Errorf("Error getting broadcast client: %s", err)
    76  	}
    77  
    78  	defer broadcastClient.Close()
    79  	err = broadcastClient.Send(sCtxEnv)
    80  	if err != nil {
    81  		return err
    82  	}
    83  
    84  	logger.Info("Successfully submitted channel update")
    85  	return nil
    86  }