Decred build script using dep for both dcrd and dcrwallet

dcrbuild.sh

#!/usr/bin/env bash
# Build dcrd and dcrwallet from git.
# It will clone master initially; subsequently it will pull any checked out branch.
# chappjc

go version

GO111MODULE=on go get -v decred.org/dcrctl@master

# Inital setup for dcrd build with dep requries manual clone
if [ ! -d $HOME/github/decred/dcrd/.git ]; then
   echo "Performing initial clone of dcrd"
   git clone https://github.com/decred/dcrd $HOME/github/decred/dcrd
fi
cd $HOME/github/decred/dcrd
git checkout go.mod && git checkout go.sum
git pull --ff-only
go install -v . ./cmd/...

# Inital setup for dcrwallet build with dep requries manual clone
if [ ! -d $HOME/github/decred/dcrwallet/.git ]; then
   echo "Performing initial clone of dcrwallet"
   git clone https://github.com/decred/dcrwallet $HOME/github/decred/dcrwallet
fi
cd $HOME/github/decred/dcrwallet
git checkout go.mod && git checkout go.sum
git pull --ff-only
go install -v

echo Once you have shut down running dcr programs, you may install with something like:
echo "sudo install -m 754 -o root -g decred ~/go/bin/dcr* /opt/decred/bin/"