core-lightning/contrib/startup_regtest.sh
Lagrang3 12d8ab6451
Remove error from startup_regtest when loading wallet
startup_regtest now checks if wallet directory exists before creating
the default wallet, then it will check if wallet is loaded before
attempting to load it. This prevents unnecessary errors during the
execution of this bash script.

[ Squashed fixup: `regtest: restore double quotes on PATH_TO_BITCOIN` -- RR ]
2023-10-31 12:57:54 +10:30

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#!/bin/sh
## Short script to startup some local nodes with
## bitcoind, all running on regtest
## Makes it easier to test things out, by hand.
## Should be called by source since it sets aliases
##
## First load this file up.
##
## $ source contrib/startup_regtest.sh
##
## Start up the nodeset
##
## $ start_ln 3
##
## Let's connect the nodes. The `connect a b` command connects node a to b.
##
## $ connect 1 2
## {
## "id" : "030b02fc3d043d2d47ae25a9306d98d2abb7fc9bee824e68b8ce75d6d8f09d5eb7"
## }
##
## When you're finished, clean up or stop
##
## $ stop_ln
## $ destroy_ln # clean up the lightning directories
##
# Do the Right Thing if we're currently in top of srcdir.
if [ -z "$PATH_TO_LIGHTNING" ] && [ -x cli/lightning-cli ] && [ -x lightningd/lightningd ]; then
PATH_TO_LIGHTNING=$(pwd)
fi
if [ -z "$PATH_TO_LIGHTNING" ]; then
# Already installed maybe? Prints
# shellcheck disable=SC2039
type lightning-cli || return
# shellcheck disable=SC2039
type lightningd || return
LCLI=lightning-cli
LIGHTNINGD=lightningd
else
LCLI="$PATH_TO_LIGHTNING"/cli/lightning-cli
LIGHTNINGD="$PATH_TO_LIGHTNING"/lightningd/lightningd
# This mirrors "type" output above.
echo lightning-cli is "$LCLI"
echo lightningd is "$LIGHTNINGD"
fi
if [ -z "$PATH_TO_BITCOIN" ]; then
if [ -d "$HOME/.bitcoin" ]; then
PATH_TO_BITCOIN="$HOME/.bitcoin"
elif [ -d "$HOME/Library/Application Support/Bitcoin/" ]; then
PATH_TO_BITCOIN="$HOME/Library/Application Support/Bitcoin/"
else
echo "\$PATH_TO_BITCOIN not set to a .bitcoin dir?" >&2
return
fi
fi
start_nodes() {
if [ -z "$1" ]; then
node_count=2
else
node_count=$1
fi
if [ "$node_count" -gt 100 ]; then
node_count=100
fi
if [ -z "$2" ]; then
network=regtest
else
network=$2
fi
# This supresses db syncs, for speed.
if type eatmydata >/dev/null 2>&1; then
EATMYDATA=eatmydata
else
EATMYDATA=
fi
LN_NODES=$node_count
for i in $(seq "$node_count"); do
socket=$(( 7070 + i * 101))
mkdir -p "/tmp/l$i-$network"
# Node config
cat <<- EOF > "/tmp/l$i-$network/config"
network=$network
log-level=debug
log-file=/tmp/l$i-$network/log
addr=localhost:$socket
allow-deprecated-apis=false
EOF
# If we've configured to use developer, add dev options
if $LIGHTNINGD --help | grep -q dev-fast-gossip; then
cat <<- EOF >> "/tmp/l$i-$network/config"
developer
dev-fast-gossip
dev-bitcoind-poll=5
experimental-dual-fund
experimental-splicing
experimental-offers
funder-policy=match
funder-policy-mod=100
funder-min-their-funding=10000
funder-per-channel-max=100000
funder-fuzz-percent=0
lease-fee-base-sat=2sat
lease-fee-basis=50
invoices-onchain-fallback
EOF
fi
# Start the lightning nodes
test -f "/tmp/l$i-$network/lightningd-$network.pid" || \
$EATMYDATA "$LIGHTNINGD" "--network=$network" "--lightning-dir=/tmp/l$i-$network" "--bitcoin-datadir=$PATH_TO_BITCOIN" "--database-upgrade=true" &
# shellcheck disable=SC2139 disable=SC2086
alias l$i-cli="$LCLI --lightning-dir=/tmp/l$i-$network"
# shellcheck disable=SC2139 disable=SC2086
alias l$i-log="less /tmp/l$i-$network/log"
done
if [ -z "$EATMYDATA" ]; then
echo "WARNING: eatmydata not found: install it for faster testing"
fi
# Give a hint.
echo "Commands: "
for i in $(seq "$node_count"); do
echo " l$i-cli, l$i-log,"
done
}
start_ln() {
# Start bitcoind in the background
test -f "$PATH_TO_BITCOIN/regtest/bitcoind.pid" || \
bitcoind -datadir="$PATH_TO_BITCOIN" -regtest -txindex -fallbackfee=0.00000253 -daemon
# Wait for it to start.
while ! bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest ping 2> /tmp/null; do echo "awaiting bitcoind..." && sleep 1; done
# Check if default wallet exists
if ! bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest listwalletdir | jq -r '.wallets[] | .name' | grep -wqe 'default' ; then
# wallet dir does not exist, create one
echo "Making \"default\" bitcoind wallet."
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest createwallet default >/dev/null 2>&1
fi
# Check if default wallet is loaded
if ! bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest listwallets | jq -r '.[]' | grep -wqe 'default' ; then
echo "Loading \"default\" bitcoind wallet."
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest loadwallet default >/dev/null 2>&1
fi
# Kick it out of initialblockdownload if necessary
if bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest getblockchaininfo | grep -q 'initialblockdownload.*true'; then
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest generatetoaddress 1 "$(bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest getnewaddress)" > /dev/null
fi
alias bt-cli='bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest'
if [ -z "$1" ]; then
nodes=2
else
nodes="$1"
fi
start_nodes "$nodes" regtest
echo " bt-cli, stop_ln, fund_nodes"
}
ensure_bitcoind_funds() {
if [ -z "$ADDRESS" ]; then
ADDRESS=$(bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest "$WALLET" getnewaddress)
fi
balance=$(bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest "$WALLET" getbalance)
if [ 1 -eq "$(echo "$balance"'<1' | bc -l)" ]; then
printf "%s" "Mining into address " "$ADDRESS""... "
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest generatetoaddress 100 "$ADDRESS" > /dev/null
echo "done."
fi
}
fund_nodes() {
WALLET="default"
NODES=""
for var in "$@"; do
case $var in
-w=*|--wallet=*)
WALLET="${var#*=}"
;;
*)
NODES="${NODES:+${NODES} }${var}"
;;
esac
done
if [ -z "$NODES" ]; then
NODES=$(seq "$node_count")
fi
WALLET="-rpcwallet=$WALLET"
ADDRESS=$(bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest "$WALLET" getnewaddress)
ensure_bitcoind_funds
echo "bitcoind balance:" "$(bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest "$WALLET" getbalance)"
last_node=""
echo "$NODES" | while read -r i; do
if [ -z "$last_node" ]; then
last_node=$i
continue
fi
node1=$last_node
node2=$i
last_node=$i
L2_NODE_ID=$($LCLI -F --lightning-dir=/tmp/l"$node2"-regtest getinfo | sed -n 's/^id=\(.*\)/\1/p')
L2_NODE_PORT=$($LCLI -F --lightning-dir=/tmp/l"$node2"-regtest getinfo | sed -n 's/^binding\[0\].port=\(.*\)/\1/p')
$LCLI -H --lightning-dir=/tmp/l"$node1"-regtest connect "$L2_NODE_ID"@localhost:"$L2_NODE_PORT" > /dev/null
L1_WALLET_ADDR=$($LCLI -F --lightning-dir=/tmp/l"$node1"-regtest newaddr | sed -n 's/^bech32=\(.*\)/\1/p')
ensure_bitcoind_funds
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest "$WALLET" sendtoaddress "$L1_WALLET_ADDR" 1 > /dev/null
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest generatetoaddress 1 "$ADDRESS" > /dev/null
printf "%s" "Waiting for lightning node funds... "
while ! $LCLI -F --lightning-dir=/tmp/l"$node1"-regtest listfunds | grep -q "outputs"
do
sleep 1
done
echo "found."
printf "%s" "Funding channel from node " "$node1" " to node " "$node2"". "
$LCLI --lightning-dir=/tmp/l"$node1"-regtest fundchannel "$L2_NODE_ID" 1000000 > /dev/null
bitcoin-cli -datadir="$PATH_TO_BITCOIN" -regtest generatetoaddress 6 "$ADDRESS" > /dev/null
printf "%s" "Waiting for confirmation... "
while ! $LCLI -F --lightning-dir=/tmp/l"$node1"-regtest listchannels | grep -q "channels"
do
sleep 1
done
echo "done."
done
}
stop_nodes() {
network=${1:-regtest}
if [ -n "$LN_NODES" ]; then
for i in $(seq "$LN_NODES"); do
test ! -f "/tmp/l$i-$network/lightningd-$network.pid" || \
(kill "$(cat "/tmp/l$i-$network/lightningd-$network.pid")"; \
rm "/tmp/l$i-$network/lightningd-$network.pid")
unalias "l$i-cli"
unalias "l$i-log"
done
fi
}
stop_ln() {
stop_nodes "$@"
test ! -f "$PATH_TO_BITCOIN/regtest/bitcoind.pid" || \
(kill "$(cat "$PATH_TO_BITCOIN/regtest/bitcoind.pid")"; \
rm "$PATH_TO_BITCOIN/regtest/bitcoind.pid")
unset LN_NODES
unalias bt-cli
}
destroy_ln() {
network=${1:-regtest}
rm -rf /tmp/l[0-9]*-"$network"
}
start_elem() {
if [ -z "$PATH_TO_ELEMENTS" ]; then
if [ -d "$HOME/.elements" ]; then
PATH_TO_ELEMENTS="$HOME/.elements"
else
echo "\$PATH_TO_ELEMENTS not set to a .elements dir" >&2
return
fi
fi
test -f "$PATH_TO_ELEMENTS/liquid-regtest/bitcoin.pid" || \
elementsd -chain=liquid-regtest -printtoconsole -logtimestamps -nolisten -validatepegin=0 -con_blocksubsidy=5000000000 -daemon
# Wait for it to start.
while ! elements-cli -chain=liquid-regtest ping 2> /tmp/null; do echo "awaiting elementsd..." && sleep 1; done
# Kick it out of initialblockdownload if necessary
if elements-cli -chain=liquid-regtest getblockchaininfo | grep -q 'initialblockdownload.*true'; then
elements-cli -chain=liquid-regtest generatetoaddress 1 "$(elements-cli -chain=liquid-regtest getnewaddress)" > /dev/null
fi
alias et-cli='elements-cli -chain=liquid-regtest'
if [ -z "$1" ]; then
nodes=2
else
nodes="$1"
fi
start_nodes "$nodes" liquid-regtest
echo " et-cli, stop_elem"
}
stop_elem() {
stop_nodes "$1" liquid-regtest
test ! -f "$PATH_TO_ELEMENTS/liquid-regtest/bitcoind.pid" || \
(kill "$(cat "$PATH_TO_ELEMENTS/liquid-regtest/bitcoind.pid")"; \
rm "$PATH_TO_ELEMENTS/liquid-regtest/bitcoind.pid")
unset LN_NODES
unalias et-cli
}
connect() {
if [ -z "$1" ] || [ -z "$2" ]; then
printf "usage: connect 1 2\n"
else
to=$($LCLI --lightning-dir="/tmp/l$2-$network" -F getinfo | grep '^\(id\|binding\[0\]\.\(address\|port\)\)' | cut -d= -f2- | tr '\n' ' ' | (read -r ID ADDR PORT; echo "$ID@${ADDR}:$PORT"))
$LCLI --lightning-dir="/tmp/l$1-$network" connect "$to"
fi
}
echo Useful commands:
echo " start_ln 3: start three nodes, l1, l2, l3"
echo " connect 1 2: connect l1 and l2"
echo " fund_nodes: connect all nodes with channels, in a row"
echo " stop_ln: shutdown"
echo " destroy_ln: remove ln directories"