laconicd/x/evm/client/cli/tx.go
yihuang 10c49f7748
feat: add raw ethereum tx CLI (#712)
Closes #709

fix index

Apply suggestions from code review

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

fix lint

transaction decoding unit test

test BuildTx

fix lint

changelog
2021-11-02 12:20:19 +01:00

112 lines
2.7 KiB
Go

package cli
import (
"bufio"
"fmt"
"os"
"github.com/cosmos/cosmos-sdk/client"
"github.com/cosmos/cosmos-sdk/client/flags"
"github.com/cosmos/cosmos-sdk/client/input"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/pkg/errors"
"github.com/spf13/cobra"
rpctypes "github.com/tharsis/ethermint/rpc/ethereum/types"
"github.com/tharsis/ethermint/x/evm/types"
)
// GetTxCmd returns the transaction commands for this module
func GetTxCmd() *cobra.Command {
cmd := &cobra.Command{
Use: types.ModuleName,
Short: fmt.Sprintf("%s transactions subcommands", types.ModuleName),
DisableFlagParsing: true,
SuggestionsMinimumDistance: 2,
RunE: client.ValidateCmd,
}
cmd.AddCommand(NewRawTxCmd())
return cmd
}
// NewRawTxCmd command build cosmos transaction from raw ethereum transaction
func NewRawTxCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "raw [tx-hex]",
Short: "Build cosmos transaction from raw ethereum transaction",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
data, err := hexutil.Decode(args[0])
if err != nil {
return errors.Wrap(err, "failed to decode ethereum tx hex bytes")
}
msg := &types.MsgEthereumTx{}
if err := msg.UnmarshalBinary(data); err != nil {
return err
}
if err := msg.ValidateBasic(); err != nil {
return err
}
clientCtx, err := client.GetClientTxContext(cmd)
if err != nil {
return err
}
rsp, err := rpctypes.NewQueryClient(clientCtx).Params(cmd.Context(), &types.QueryParamsRequest{})
if err != nil {
return err
}
tx, err := msg.BuildTx(clientCtx.TxConfig.NewTxBuilder(), rsp.Params.EvmDenom)
if err != nil {
return err
}
if clientCtx.GenerateOnly {
json, err := clientCtx.TxConfig.TxJSONEncoder()(tx)
if err != nil {
return err
}
return clientCtx.PrintString(fmt.Sprintf("%s\n", json))
}
if !clientCtx.SkipConfirm {
out, err := clientCtx.TxConfig.TxJSONEncoder()(tx)
if err != nil {
return err
}
_, _ = fmt.Fprintf(os.Stderr, "%s\n\n", out)
buf := bufio.NewReader(os.Stdin)
ok, err := input.GetConfirmation("confirm transaction before signing and broadcasting", buf, os.Stderr)
if err != nil || !ok {
_, _ = fmt.Fprintf(os.Stderr, "%s\n", "canceled transaction")
return err
}
}
txBytes, err := clientCtx.TxConfig.TxEncoder()(tx)
if err != nil {
return err
}
// broadcast to a Tendermint node
res, err := clientCtx.BroadcastTx(txBytes)
if err != nil {
return err
}
return clientCtx.PrintProto(res)
},
}
flags.AddTxFlagsToCmd(cmd)
return cmd
}