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cmd_cash.go
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cmd_cash.go
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package main
import (
"flag"
"fmt"
"io"
"github.com/iov-one/weave"
bnsd "github.com/iov-one/weave/cmd/bnsd/app"
"github.com/iov-one/weave/coin"
"github.com/iov-one/weave/gconf"
"github.com/iov-one/weave/x/cash"
)
func cmdUpdateCashConfiguration(input io.Reader, output io.Writer, args []string) error {
fl := flag.NewFlagSet("", flag.ExitOnError)
fl.Usage = func() {
fmt.Fprintln(flag.CommandLine.Output(), `
Create a transaction for updating cash extension configuration.
`)
fl.PrintDefaults()
}
var (
ownerFl = flAddress(fl, "owner", "", "A new configuration owner.")
collectorFl = flAddress(fl, "collector", "", "A new collector address.")
minFeeFl = flCoin(fl, "min-fee", "1 IOV", "A new minimal fee value.")
)
fl.Parse(args)
tx := &bnsd.Tx{
Sum: &bnsd.Tx_CashUpdateConfigurationMsg{
CashUpdateConfigurationMsg: &cash.UpdateConfigurationMsg{
Metadata: &weave.Metadata{Schema: 1},
Patch: &cash.Configuration{
Owner: *ownerFl,
CollectorAddress: *collectorFl,
MinimalFee: *minFeeFl,
},
},
},
}
_, err := writeTx(output, tx)
return err
}
func cmdSendTokens(input io.Reader, output io.Writer, args []string) error {
fl := flag.NewFlagSet("", flag.ExitOnError)
fl.Usage = func() {
fmt.Fprintln(flag.CommandLine.Output(), `
Create a transaction for transfering funds from the source account to the
destination account.
`)
fl.PrintDefaults()
}
var (
srcFl = flAddress(fl, "src", "", "A source account address that the founds are send from.")
dstFl = flAddress(fl, "dst", "", "A destination account address that the founds are send to.")
amountFl = flCoin(fl, "amount", "1 IOV", "An amount that is to be transferred between the source to the destination accounts.")
memoFl = fl.String("memo", "", "A short message attached to the transfer operation.")
)
fl.Parse(args)
tx := &bnsd.Tx{
Sum: &bnsd.Tx_CashSendMsg{
CashSendMsg: &cash.SendMsg{
Metadata: &weave.Metadata{Schema: 1},
Source: *srcFl,
Destination: *dstFl,
Amount: amountFl,
Memo: *memoFl,
Ref: nil,
},
},
}
_, err := writeTx(output, tx)
return err
}
func cmdWithFee(input io.Reader, output io.Writer, args []string) error {
fl := flag.NewFlagSet("", flag.ExitOnError)
fl.Usage = func() {
fmt.Fprintln(flag.CommandLine.Output(), `
Modify given transaction and addatch a fee as specified to it. If a transaction
already has a fee set, overwrite it with a new value.
`)
fl.PrintDefaults()
}
var (
payerFl = flHex(fl, "payer", "", "Optional address of a payer. If not provided the main signer will be used.")
amountFl = flCoin(fl, "amount", "", "Fee value that should be attached to the transaction. If not provided, default minimal fee is used.")
tmAddrFl = fl.String("tm", env("BNSCLI_TM_ADDR", "https://bns.NETWORK.iov.one:443"),
"Tendermint node address. Use proper NETWORK name. You can use BNSCLI_TM_ADDR environment variable to set it.")
)
fl.Parse(args)
var payer weave.Address
if len(*payerFl) != 0 {
payer = weave.Address(*payerFl)
if err := payer.Validate(); err != nil {
flagDie("invlid payer address: %s", err)
}
}
if !amountFl.IsNonNegative() {
flagDie("fee value cannot be negative.")
}
tx, _, err := readTx(input)
if err != nil {
return fmt.Errorf("cannot read transaction: %s", err)
}
if coin.IsEmpty(amountFl) {
msg, err := tx.GetMsg()
if err != nil {
return fmt.Errorf("cannot extract message from transaction: %s", err)
}
fee, err := msgfeeConf(*tmAddrFl, msg.Path())
if err != nil {
return fmt.Errorf("cannot fetch %T message fee information: %s", msg, err)
}
// Custom fee value is more important than global minimal fee setting.
if !coin.IsEmpty(fee) {
amountFl = fee
} else {
conf, err := cashGconf(*tmAddrFl)
if err != nil {
return fmt.Errorf("cannot fetch minimal fee configuration: %s", err)
}
amountFl = &conf.MinimalFee
}
}
tx.Fees = &cash.FeeInfo{
Payer: payer,
Fees: amountFl,
}
_, err = writeTx(output, tx)
return err
}
func cashGconf(nodeUrl string) (*cash.Configuration, error) {
store := tendermintStore(nodeUrl)
var conf cash.Configuration
if err := gconf.Load(store, "cash", &conf); err != nil {
return nil, err
}
return &conf, nil
}