cosmos-sdk/x/simplestake/commands/commands.go

114 lines
2.4 KiB
Go

package commands
import (
"encoding/hex"
"fmt"
"github.com/spf13/cobra"
"github.com/spf13/viper"
crypto "github.com/tendermint/go-crypto"
"github.com/cosmos/cosmos-sdk/client/context"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/wire"
authcmd "github.com/cosmos/cosmos-sdk/x/auth/commands"
"github.com/cosmos/cosmos-sdk/x/simplestake"
)
const (
flagStake = "stake"
flagValidator = "validator"
)
func BondTxCmd(cdc *wire.Codec) *cobra.Command {
cmdr := commander{cdc}
cmd := &cobra.Command{
Use: "bond",
Short: "Bond to a validator",
RunE: cmdr.bondTxCmd,
}
cmd.Flags().String(flagStake, "", "Amount of coins to stake")
cmd.Flags().String(flagValidator, "", "Validator address to stake")
return cmd
}
func UnbondTxCmd(cdc *wire.Codec) *cobra.Command {
cmdr := commander{cdc}
cmd := &cobra.Command{
Use: "unbond",
Short: "Unbond from a validator",
RunE: cmdr.unbondTxCmd,
}
return cmd
}
type commander struct {
cdc *wire.Codec
}
func (co commander) bondTxCmd(cmd *cobra.Command, args []string) error {
ctx := context.NewCoreContextFromViper()
from, err := ctx.GetFromAddress()
if err != nil {
return err
}
stakeString := viper.GetString(flagStake)
if len(stakeString) == 0 {
return fmt.Errorf("specify coins to bond with --stake")
}
valString := viper.GetString(flagValidator)
if len(valString) == 0 {
return fmt.Errorf("specify pubkey to bond to with --validator")
}
stake, err := sdk.ParseCoin(stakeString)
if err != nil {
return err
}
// TODO: bech32 ...
rawPubKey, err := hex.DecodeString(valString)
if err != nil {
return err
}
var pubKeyEd crypto.PubKeyEd25519
copy(pubKeyEd[:], rawPubKey)
msg := simplestake.NewBondMsg(from, stake, pubKeyEd)
return co.sendMsg(msg)
}
func (co commander) unbondTxCmd(cmd *cobra.Command, args []string) error {
from, err := context.NewCoreContextFromViper().GetFromAddress()
if err != nil {
return err
}
msg := simplestake.NewUnbondMsg(from)
return co.sendMsg(msg)
}
func (co commander) sendMsg(msg sdk.Msg) error {
ctx := context.NewCoreContextFromViper().WithDecoder(authcmd.GetAccountDecoder(co.cdc))
// default to next sequence number if none provided
ctx, err := context.EnsureSequence(ctx)
if err != nil {
return err
}
res, err := ctx.SignBuildBroadcast(ctx.FromAddressName, msg, co.cdc)
if err != nil {
return err
}
fmt.Printf("Committed at block %d. Hash: %s\n", res.Height, res.Hash.String())
return nil
}