go_study/fabric-main/internal/peer/channel/joinbysnapshot.go

65 lines
1.8 KiB
Go

/*
Copyright IBM Corp. 2017 All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package channel
import (
"errors"
pb "github.com/hyperledger/fabric-protos-go/peer"
"github.com/hyperledger/fabric/core/scc/cscc"
"github.com/hyperledger/fabric/internal/peer/common"
"github.com/spf13/cobra"
)
func joinBySnapshotCmd(cf *ChannelCmdFactory) *cobra.Command {
// Set the flags on the channel start command.
joinbysnapshotCmd := &cobra.Command{
Use: "joinbysnapshot",
Short: "Joins the peer to a channel by the specified snapshot",
Long: "Joins the peer to a channel by the specified snapshot",
RunE: func(cmd *cobra.Command, args []string) error {
return joinBySnapshot(cmd, args, cf)
},
}
flagList := []string{
"snapshotpath",
}
attachFlags(joinbysnapshotCmd, flagList)
return joinbysnapshotCmd
}
func joinBySnapshot(cmd *cobra.Command, args []string, cf *ChannelCmdFactory) error {
if snapshotPath == common.UndefinedParamValue {
return errors.New("the required parameter 'snapshotpath' is empty. Rerun the command with --snapshotpath flag")
}
// Parsing of the command line is done so silence cmd usage
cmd.SilenceUsage = true
var err error
if cf == nil {
cf, err = InitCmdFactory(EndorserRequired, PeerDeliverNotRequired, OrdererNotRequired)
if err != nil {
return err
}
}
spec := &pb.ChaincodeSpec{
Type: pb.ChaincodeSpec_Type(pb.ChaincodeSpec_Type_value["GOLANG"]),
ChaincodeId: &pb.ChaincodeID{Name: "cscc"},
Input: &pb.ChaincodeInput{Args: [][]byte{[]byte(cscc.JoinChainBySnapshot), []byte(snapshotPath)}},
}
if err = executeJoin(cf, spec); err != nil {
return err
}
logger.Info(`The joinbysnapshot operation is in progress. Use "peer channel joinbysnapshotstatus" to check the status.`)
return nil
}