Implement cli withdraw-all-rewards command as multi-message tx

ref #3476

x/distribution/client/cli/tx.go

@@ -16,6 +16,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authtxb "github.com/cosmos/cosmos-sdk/x/auth/client/txbuilder"
 
+	"github.com/cosmos/cosmos-sdk/x/distribution/client/common"
 	"github.com/cosmos/cosmos-sdk/x/distribution/types"
 )
 
@@ -89,6 +90,38 @@ func GetCmdWithdrawRewards(cdc *codec.Codec) *cobra.Command {
 	return cmd
 }
 
+// command to withdraw all rewards
+func GetCmdWithdrawAllRewards(cdc *codec.Codec, queryRoute string) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "withdraw-all-rewards [delegator-addr]",
+		Short: "withdraw all delegations rewards for a delegator",
+		Args:  cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+
+			txBldr := authtxb.NewTxBuilderFromCLI().WithTxEncoder(utils.GetTxEncoder(cdc))
+			cliCtx := context.NewCLIContext().
+				WithCodec(cdc).
+				WithAccountDecoder(cdc)
+
+			delAddr := cliCtx.GetFromAddress()
+			msgs, err := common.WithdrawAllDelegatorRewards(cliCtx, cdc, queryRoute, delAddr)
+			if err != nil {
+				return err
+			}
+
+			if cliCtx.GenerateOnly {
+				return utils.PrintUnsignedStdTx(os.Stdout, txBldr, cliCtx, msgs, false)
+			}
+
+			// build and sign the transaction, then broadcast to Tendermint
+			return utils.CompleteAndBroadcastTxCLI(txBldr, cliCtx, msgs)
+		},
+	}
+	cmd.Flags().String(flagOnlyFromValidator, "", "only withdraw from this validator address (in bech)")
+	cmd.Flags().Bool(flagIsValidator, false, "also withdraw validator's commission")
+	return cmd
+}
+
 // GetCmdDelegate implements the delegate command.
 func GetCmdSetWithdrawAddr(cdc *codec.Codec) *cobra.Command {
 	cmd := &cobra.Command{

x/distribution/client/module_client.go

@@ -46,6 +46,7 @@ func (mc ModuleClient) GetTxCmd() *cobra.Command {
 	distTxCmd.AddCommand(client.PostCommands(
 		distCmds.GetCmdWithdrawRewards(mc.cdc),
 		distCmds.GetCmdSetWithdrawAddr(mc.cdc),
+		distCmds.GetCmdWithdrawAllRewards(mc.cdc, mc.storeKey),
 	)...)
 
 	return distTxCmd