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removeValidator.go
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/
removeValidator.go
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/*
Copyright [2019] - [2021], PERSISTENCE TECHNOLOGIES PTE. LTD. and the persistenceBridge contributors
SPDX-License-Identifier: Apache-2.0
*/
package commands
import (
"errors"
"fmt"
"github.com/dgraph-io/badger/v3"
"log"
"strings"
"time"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/persistenceOne/persistenceBridge/application/constants"
"github.com/persistenceOne/persistenceBridge/application/db"
"github.com/persistenceOne/persistenceBridge/application/rpc"
"github.com/persistenceOne/persistenceBridge/kafka/utils"
"github.com/spf13/cobra"
)
func RemoveCommand() *cobra.Command {
removeCommand := &cobra.Command{
Use: "remove [validatorOperatorAddress]",
Short: "Remove validator address to signing group",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
homePath, err := cmd.Flags().GetString(constants.FlagPBridgeHome)
if err != nil {
log.Fatalln(err)
}
setAndSealConfig(homePath)
validatorAddress, err := sdk.ValAddressFromBech32(args[0])
if err != nil {
return err
}
rpcEndpoint, err := cmd.Flags().GetString(constants.FlagRPCEndpoint)
if err != nil {
log.Fatalln(err)
}
kafkaPorts, err := cmd.Flags().GetString(constants.FlagKafkaPorts)
if err != nil {
log.Fatalln(err)
}
config := utils.SaramaConfig()
producer := utils.NewProducer(strings.Split(kafkaPorts, ","), config)
defer func() {
err := producer.Close()
if err != nil {
log.Printf("failed to close producer in topic: %v\n", utils.MsgUnbond)
}
}()
var validators []db.Validator
database, err := db.OpenDB(homePath + "/db")
if err != nil {
log.Printf("Db is already open: %v", err)
log.Printf("sending rpc")
var err2 error
validators, err2 = rpc.ShowValidators("", rpcEndpoint)
if err2 != nil {
return err2
}
if len(validators) <= 1 {
return errors.New(fmt.Sprintf("Cannot remove any more validators, total validators: %v", len(validators)))
}
validators, err2 = rpc.RemoveValidator(validatorAddress, rpcEndpoint)
if err2 != nil {
return err2
}
} else {
defer func(database *badger.DB) {
err := database.Close()
if err != nil {
log.Fatalln(err)
}
}(database)
var err2 error
validators, err2 = db.GetValidators()
if err2 != nil {
return err2
}
if len(validators) <= 1 {
return errors.New(fmt.Sprintf("Cannot remove any more validators, total validators: %v", len(validators)))
}
err = db.DeleteValidator(validatorAddress)
if err != nil {
return err
}
}
log.Printf("Total validators %d:\n", len(validators))
for i, validator := range validators {
log.Printf("%d. %s - %s\n", i+1, validator.Name, validator.Address.String())
}
time.Sleep(1 * time.Minute)
err = utils.ProducerDeliverMessage(validatorAddress, utils.Redelegate, producer)
if err != nil {
log.Printf("failed to produce message to topic %v\n", utils.Redelegate)
return err
}
return nil
},
}
removeCommand.Flags().String(constants.FlagRPCEndpoint, constants.DefaultRPCEndpoint, "rpc endpoint for bridge relayer")
removeCommand.Flags().String(constants.FlagPBridgeHome, constants.DefaultPBridgeHome, "home for pBridge")
removeCommand.Flags().String(constants.FlagKafkaPorts, constants.DefaultKafkaPorts, "broker ports kafka is running on")
return removeCommand
}