84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
package commands
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import (
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"fmt"
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"github.com/spf13/pflag"
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"github.com/spf13/viper"
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"github.com/tendermint/basecoin"
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"github.com/tendermint/basecoin/client/commands"
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txcmd "github.com/tendermint/basecoin/client/commands/txs"
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"github.com/tendermint/basecoin/modules/nonce"
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)
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// nolint
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const (
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FlagSequence = "sequence"
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FlagNonceKey = "nonce-key"
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)
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// NonceWrapper wraps a tx with a nonce
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type NonceWrapper struct{}
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var _ txcmd.Wrapper = NonceWrapper{}
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// Wrap grabs the sequence number from the flag and wraps
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// the tx with this nonce. Grabs the permission from the signer,
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// as we still only support single sig on the cli
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func (NonceWrapper) Wrap(tx basecoin.Tx) (res basecoin.Tx, err error) {
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signers, err := readNonceKey()
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if err != nil {
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return res, err
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}
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seq, err := readSequence(signers)
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if err != nil {
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return res, err
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}
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res = nonce.NewTx(seq, signers, tx)
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return
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}
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// Register adds the sequence flags to the cli
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func (NonceWrapper) Register(fs *pflag.FlagSet) {
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fs.Int(FlagSequence, -1, "Sequence number for this transaction")
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fs.String(FlagNonceKey, "", "Set of comma-separated addresses for the nonce (for multisig)")
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}
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func readNonceKey() ([]basecoin.Actor, error) {
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nonce := viper.GetString(FlagNonceKey)
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if nonce == "" {
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return []basecoin.Actor{txcmd.GetSignerAct()}, nil
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}
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return commands.ParseActors(nonce)
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}
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// read the sequence from the flag or query for it if flag is -1
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func readSequence(signers []basecoin.Actor) (seq uint32, err error) {
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//add the nonce tx layer to the tx
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seqFlag := viper.GetInt(FlagSequence)
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switch {
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case seqFlag > 0:
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seq = uint32(seqFlag)
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case seqFlag == -1:
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//autocalculation for default sequence
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seq, _, err = doNonceQuery(signers)
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if err != nil {
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return
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}
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//increase the sequence by 1!
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seq++
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default:
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err = fmt.Errorf("sequence must be either greater than 0, or -1 for autocalculation")
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}
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return
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}
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