start_regtest.sh

#!/bin/bash

echo "Killing all bitcoind"
ps -ef | grep bitcoind | grep -v grep | awk '{print $2}' | xargs kill 2&>/dev/null

sleep 2

echo "Starting new daemons"

mkdir -p minerdir spamdir
rm -rf ./minerdir/* ./spamdir/*

cp miner.conf minerdir/bitcoin.conf
cp spammer.conf spamdir/bitcoin.conf

BITCOIN_VERSION=$(bitcoind --version | head -n 1)
BITCOIN_FORK=$(echo "$BITCOIN_VERSION" | awk '{print $2}')
BITCOIN_MAJOR=$(echo "$BITCOIN_VERSION" | tr '.' '\n' | head -n 2 | tail -n 1)

echo "Using $BITCOIN_VERSION"

# Start miner node and spamming node
if [ "$BITCOIN_FORK" == "SV" ]; then
    bitcoind -datadir=./minerdir -fallbackfee='0.00000001' -daemon -excessiveblocksize=0 -maxstackmemoryusageconsensus=0
    bitcoind -datadir=./spamdir -fallbackfee='0.00000001' -daemon -excessiveblocksize=0 -maxstackmemoryusageconsensus=0
else
    bitcoind -datadir=./minerdir -fallbackfee='0.00000001' -daemon
    bitcoind -datadir=./spamdir -fallbackfee='0.00000001' -daemon
fi

echo "Connecting nodes..."
sleep 5

# Have mining node add spamming node connect
bitcoin-cli -datadir=./spamdir/ addnode 127.0.0.1:18444 add
sleep 1

echo "Mining blocks to send to spammer"
if [[ "$BITCOIN_FORK" == "SV" || $BITCOIN_MAJOR -gt 18 ]]; then
    ADDRESS_MINER=$(bitcoin-cli -datadir=./minerdir/ getnewaddress)
    ADDRESS_SPAMMER=$(bitcoin-cli -datadir=./spamdir/ getnewaddress)
    bitcoin-cli -datadir=./minerdir/ generatetoaddress 101 "$ADDRESS_MINER"
    bitcoin-cli -datadir=./minerdir/ sendtoaddress "$ADDRESS_SPAMMER" '1.00'
    sleep 1
    bitcoin-cli -datadir=./minerdir/ generatetoaddress 1 "$ADDRESS_MINER"
    sleep 1
else
    ADDRESS_SPAMMER=$(bitcoin-cli -datadir=./spamdir/ getnewaddress)
    bitcoin-cli -datadir=./minerdir/ generate 101
    bitcoin-cli -datadir=./minerdir/ sendtoaddress "$ADDRESS_SPAMMER" '1.00'
    sleep 1
    bitcoin-cli -datadir=./minerdir/ generate 1
    sleep 1
fi

BALANCE=$(bitcoin-cli -datadir=./spamdir/ getbalance)
echo "Spammer has $BALANCE btc"

echo "Done."