Differential D3809 Diff 11180 contrib/seeds/test-seeds.sh

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contrib/seeds/test-seeds.sh

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				#!/usr/bin/env bash
				# Copyright (c) 2019 The Bitcoin developers
				# Distributed under the MIT software license, see the accompanying
				# file COPYING or http://www.opensource.org/licenses/mit-license.php.

				export LC_ALL=C

				set -u

				TOPLEVEL=$(git rev-parse --show-toplevel)
				DEFAULT_BUILD_DIR="${TOPLEVEL}/build"

				help_message() {
				echo "Test connecting to seed nodes. Outputs the seeds that were successfully connected to."
				echo ""
				echo "Example usages:"
				echo "Mainnet: $0 < nodes_main.txt"
				echo "Testnet: $0 --testnet < nodes_test.txt"
				echo ""
				echo "Options:"
				echo "-t, --testnet Connect to testnet seeds (mainnet is default)."
				echo "-h, --help Display this help message."
				echo ""
				echo "Environment Variables:"
				echo "BUILD_DIR Default: ${DEFAULT_BUILD_DIR}"
				exit 0
				}

				: "${BUILD_DIR:=${DEFAULT_BUILD_DIR}}"
				OPTION_TESTNET=""

				# Parse command line arguments
				while [[ $# -gt 0 ]]; do
				case $1 in
				-t\|--testnet)
				OPTION_TESTNET="--testnet"
				shift # shift past argument
				;;
				-h\|--help)
				help_message
				shift # shift past argument
				;;
				*)
				echo "Unknown argument: $1"
				help_message
				shift # shift past argument
				;;
				esac
				done

				BITCOIND="${BUILD_DIR}/src/bitcoind"
				BITCOIN_CLI="${BUILD_DIR}/src/bitcoin-cli"
				if [ ! -x "${BITCOIND}" ]; then
				echo "${BITCOIND} does not exist or has incorrect permissions."
				exit 10
				fi
				if [ ! -x "${BITCOIN_CLI}" ]; then
				echo "${BITCOIN_CLI} does not exist or has incorrect permissions."
				exit 11
				fi

				BITCOIND="${BITCOIND} -connect=0 ${OPTION_TESTNET}"
				BITCOIN_CLI="${BITCOIN_CLI} ${OPTION_TESTNET}"

				>&2 echo "Spinning up bitcoind..."
				${BITCOIND} &
				BITCOIND_PID=$!
				cleanup() {
				# Cleanup background processes spawned by this script.
				>&2 echo "Cleaning up bitcoin daemon (PID: ${BITCOIND_PID})."
				kill ${BITCOIND_PID}
				}
				trap "cleanup" EXIT

				# Short sleep to make sure the RPC server is available
				sleep 0.1
				# Wait until bitcoind is fully spun up
				WARMUP_TIMEOUT=60
				for _ in $(seq 1 ${WARMUP_TIMEOUT}); do
				${BITCOIN_CLI} getconnectioncount &> /dev/null
				RPC_READY=$?
				if [ "${RPC_READY}" -ne 0 ]; then
				>&2 printf "."
				sleep 1
				else
				break
				fi
				done
				>&2 echo ""

				if [ "${RPC_READY}" -ne 0 ]; then
				>&2 echo "RPC was not ready after ${WARMUP_TIMEOUT} seconds."
				exit 20
				fi

				while read -r SEED; do
				>&2 echo "Testing seed '${SEED}'..."

				# Immediately connect to the seed peer
				${BITCOIN_CLI} addnode "${SEED}" onetry

				# Fetch peer's connection status
				CONNECTION_COUNT=$(${BITCOIN_CLI} getconnectioncount)
				if [ "${CONNECTION_COUNT}" -eq 1 ]; then
				# Cleanup peer connection
				${BITCOIN_CLI} disconnectnode "${SEED}"

				# Wait for peer to be disconnected
				CONNECTED_TIMEOUT=5
				for _ in $(seq 1 ${CONNECTED_TIMEOUT}); do
				CONNECTION_COUNT=$(${BITCOIN_CLI} getconnectioncount)
				if [ "${CONNECTION_COUNT}" -eq 0 ]; then
				break
				fi
				sleep 0.1
				done
				if [ "${CONNECTION_COUNT}" -ne 0 ]; then
				>&2 echo "Seed failed to disconnect. Something else could be wrong (check logs)."
				exit 30
				fi

				echo "${SEED}"
				else
				>&2 echo "Failed to connect to '${SEED}'"
				fi
				done