wallet/txauthor: create new wallet/txauthor module

This commit is contained in:
Olaoluwa Osuntokun 2019-09-05 17:30:50 -07:00
parent a608ee4e4f
commit 8dddf4319f
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5 changed files with 92 additions and 36 deletions

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@ -1,28 +0,0 @@
// Copyright (c) 2016 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
// Package helpers provides convenience functions to simplify wallet code. This
// package is intended for internal wallet use only.
package helpers
import (
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
)
// SumOutputValues sums up the list of TxOuts and returns an Amount.
func SumOutputValues(outputs []*wire.TxOut) (totalOutput btcutil.Amount) {
for _, txOut := range outputs {
totalOutput += btcutil.Amount(txOut.Value)
}
return totalOutput
}
// SumOutputSerializeSizes sums up the serialized size of the supplied outputs.
func SumOutputSerializeSizes(outputs []*wire.TxOut) (serializeSize int) {
for _, txOut := range outputs {
serializeSize += txOut.SerializeSize()
}
return serializeSize
}

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@ -13,11 +13,17 @@ import (
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
"github.com/btcsuite/btcwallet/wallet/txrules"
h "github.com/btcsuite/btcwallet/internal/helpers"
"github.com/btcsuite/btcwallet/wallet/internal/txsizes"
"github.com/btcsuite/btcwallet/wallet/txsizes"
)
// SumOutputValues sums up the list of TxOuts and returns an Amount.
func SumOutputValues(outputs []*wire.TxOut) (totalOutput btcutil.Amount) {
for _, txOut := range outputs {
totalOutput += btcutil.Amount(txOut.Value)
}
return totalOutput
}
// InputSource provides transaction inputs referencing spendable outputs to
// construct a transaction outputting some target amount. If the target amount
// can not be satisified, this can be signaled by returning a total amount less
@ -80,7 +86,7 @@ type ChangeSource func() ([]byte, error)
func NewUnsignedTransaction(outputs []*wire.TxOut, relayFeePerKb btcutil.Amount,
fetchInputs InputSource, fetchChange ChangeSource) (*AuthoredTx, error) {
targetAmount := h.SumOutputValues(outputs)
targetAmount := SumOutputValues(outputs)
estimatedSize := txsizes.EstimateVirtualSize(0, 1, 0, outputs, true)
targetFee := txrules.FeeForSerializeSize(relayFeePerKb, estimatedSize)

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@ -2,17 +2,15 @@
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package txauthor_test
package txauthor
import (
"testing"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
. "github.com/btcsuite/btcwallet/wallet/txauthor"
"github.com/btcsuite/btcwallet/wallet/txrules"
"github.com/btcsuite/btcwallet/wallet/internal/txsizes"
"github.com/btcsuite/btcwallet/wallet/txsizes"
)
func p2pkhOutputs(amounts ...btcutil.Amount) []*wire.TxOut {

14
wallet/txauthor/go.mod Normal file
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@ -0,0 +1,14 @@
module github.com/btcsuite/btcwallet/wallet/txauthor
go 1.12
require (
github.com/btcsuite/btcd v0.0.0-20190824003749-130ea5bddde3
github.com/btcsuite/btcutil v0.0.0-20190425235716-9e5f4b9a998d
github.com/btcsuite/btcwallet/wallet/txrules v1.0.0
github.com/btcsuite/btcwallet/wallet/txsizes v1.0.0
)
replace github.com/btcsuite/btcwallet/wallet/txrules => ../txrules
replace github.com/btcsuite/btcwallet/wallet/txsizes => ../txsizes

66
wallet/txauthor/go.sum Normal file
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@ -0,0 +1,66 @@
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