davecgh

package main

import (
	"encoding/hex"
	"fmt"

	"github.com/btcsuite/btcd/btcec"
	"github.com/btcsuite/btcd/chaincfg"
	"github.com/btcsuite/btcd/txscript"
	"github.com/btcsuite/btcd/wire"

davecgh

Initial Preparation

The first step is to read the Code Contribution Guidelines documentation to get a good understanding of policies used by the project

Once that is done, the following commands illustrate a straight forward setup for submitting pull requests to the project:

One time setup

• Fork btcd on github
• Run the following command to obtain btcd, all dependencies, and install it (this has probably already been done):

davecgh

Table of Contents

1. Overview
2. Getting Started

### 1. Overview

When developing bitcoin applications or testing potential changes, it is often extremely useful to have a test network where transactions are actually mined into blocks and difficulty levels are low enough to generate blocks as needed.

In order to facilitate these scenarios, btcd provides a simulation network (--simnet). The following is an overview of the most important properties that distinguish it from the main network:

davecgh

#!/bin/sh

cd $GOPATH/src/github.com/btcsuite/btcd
go build -ldflags "-X main.appBuild=$(git describe)"

davecgh

openssl ecparam -name secp521r1 -genkey -out dcrd.key
openssl req -new -x509 -key dcrd.key -out dcrd.cert  -sha512 -days 3650 -extensions v3_req -config ./openssl.cnf

davecgh

package main

import (
	"encoding/hex"
	"fmt"
	"os"
	"path/filepath"
	"strings"

	"github.com/decred/dcrwallet/pgpwordlist"

davecgh

// Copyright (c) 2016 The btcsuite developers
// Copyright (c) 2015-2016 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.

package main

import (
	"io/ioutil"
	"log"

davecgh

rpcuser=youruser
rpcpass=SomeDecentp4ssw0rd
simnet=1
logdir=~/btcdsimnetnodes/master/log
datadir=~/btcdsimnetnodes/master/data
listen=127.0.0.1:18555
connect=127.0.0.1:18501
connect=127.0.0.1:18502
connect=127.0.0.1:18503
connect=127.0.0.1:18504

davecgh

The following table shows all of the valid combinations of votebits for the version 4 agendas on mainnet.

Vote Version 4

--votebits	explorer OP_RETURN	lnsupport	sdiffalgo	Previous Block Valid?
0 (0x00)	OP_RETURN 000004000000	ABSTAIN ❓	ABSTAIN ❓	NO ❌
1 (0x01)	OP_RETURN 010004000000	ABSTAIN ❓	ABSTAIN ❓	YES ✅
2 (0x02)	OP_RETURN 020004000000	ABSTAIN ❓	NO ❌	NO ❌

davecgh

package main

import (
	"encoding/hex"
	"fmt"
	"os"

	"github.com/decred/dcrd/chaincfg/chainhash"
	"github.com/decred/dcrd/txscript/v4"
	"github.com/decred/dcrd/wire"