prysm-pulse/prysm.sh

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#!/bin/bash
set -eu
# Use this script to download the latest Prysm release binary.
# Usage: ./prysm.sh PROCESS [--download-only] FLAGS
# PROCESS can be one of beacon-chain or validator.
# FLAGS are the flags or arguments passed to the PROCESS.
# If --download-only flag is passed, binaries are checked for updates,
# downloaded if necessary, no process is started.
# Downloaded binaries are saved to ./dist.
# Use USE_PRYSM_VERSION to specify a specific release version.
# Example: USE_PRYSM_VERSION=v0.3.3 ./prysm.sh beacon-chain
# Use USE_PRYSM_MODERN to specify a non-portable version of BLST
# Example: USE_PRYSM_MODERN=true ./prysm.sh beacon-chain
readonly PRYLABS_SIGNING_KEY=0AE0051D647BA3C1A917AF4072E33E4DF1A5036E
function color() {
# Usage: color "31;5" "string"
# Some valid values for color:
# - 5 blink, 1 strong, 4 underlined
# - fg: 31 red, 32 green, 33 yellow, 34 blue, 35 purple, 36 cyan, 37 white
# - bg: 40 black, 41 red, 44 blue, 45 purple
printf '\033[%sm%s\033[0m\n' "$@"
}
# `readlink -f` that works on OSX too.
function get_realpath() {
if [ "$(uname -s)" == "Darwin" ]; then
local queue="$1"
if [[ "${queue}" != /* ]]; then
# Make sure we start with an absolute path.
queue="${PWD}/${queue}"
fi
local current=""
while [ -n "${queue}" ]; do
# Removing a trailing /.
queue="${queue#/}"
# Pull the first path segment off of queue.
local segment="${queue%%/*}"
# If this is the last segment.
if [[ "${queue}" != */* ]]; then
segment="${queue}"
queue=""
else
# Remove that first segment.
queue="${queue#*/}"
fi
local link="${current}/${segment}"
if [ -h "${link}" ]; then
link="$(readlink "${link}")"
queue="${link}/${queue}"
if [[ "${link}" == /* ]]; then
current=""
fi
else
current="${link}"
fi
done
echo "${current}"
else
readlink -f "$1"
fi
}
# Complain if no arguments were provided.
if [ "$#" -lt 1 ]; then
color "31" "Usage: ./prysm.sh PROCESS FLAGS."
color "31" " ./prysm.sh PROCESS --download-only."
color "31" "PROCESS can be beacon-chain, validator, or client-stats."
exit 1
fi
readonly wrapper_dir="$(dirname "$(get_realpath "${BASH_SOURCE[0]}")")/dist"
# for Apple M1s
if [ "$(uname -s)" == "Darwin" ] && [ "$(uname -m)" == "arm64" ]
then
arch="amd64"
else
arch=$(uname -m)
arch=${arch/x86_64/amd64}
arch=${arch/aarch64/arm64}
fi
readonly os_arch_suffix="$(uname -s | tr '[:upper:]' '[:lower:]')-$arch"
system=""
case "$OSTYPE" in
darwin*) system="darwin" ;;
linux*) system="linux" ;;
msys*) system="windows" ;;
cygwin*) system="windows" ;;
*) exit 1 ;;
esac
readonly system
if [ "$system" == "windows" ]; then
arch="amd64.exe"
elif [[ "$os_arch_suffix" == *"arm64"* ]]; then
arch="arm64"
fi
if [[ "$arch" == "armv7l" ]]; then
color "31" "32-bit ARM is not supported. Please install a 64-bit operating system."
exit 1
fi
mkdir -p "$wrapper_dir"
function get_prysm_version() {
if [[ -n ${USE_PRYSM_VERSION:-} ]]; then
readonly reason="specified in \$USE_PRYSM_VERSION"
readonly prysm_version="${USE_PRYSM_VERSION}"
else
# Find the latest Prysm version available for download.
readonly reason="automatically selected latest available version"
prysm_version=$(curl -f -s https://prysmaticlabs.com/releases/latest) || (color "31" "Starting prysm requires an internet connection. If you are being blocked by your antivirus, you can download the beacon chain and validator executables from our releases page on Github here https://github.com/prysmaticlabs/prysm/releases/" && exit 1)
readonly prysm_version
fi
}
function verify() {
file=$1
skip=${PRYSM_ALLOW_UNVERIFIED_BINARIES-0}
if [[ $skip == 1 ]]; then
return 0
fi
checkSum="shasum -a 256"
hash shasum 2>/dev/null || {
checkSum="sha256sum"
hash sha256sum 2>/dev/null || {
echo >&2 "SHA checksum utility not available. Either install one (shasum or sha256sum) or run with PRYSM_ALLOW_UNVERIFIED_BINARIES=1."
exit 1
}
}
hash gpg 2>/dev/null || {
echo >&2 "gpg is not available. Either install it or run with PRYSM_ALLOW_UNVERIFIED_BINARIES=1."
exit 1
}
color "37" "Verifying binary integrity."
gpg --list-keys "$PRYLABS_SIGNING_KEY" >/dev/null 2>&1 || curl --silent https://prysmaticlabs.com/releases/pgp_keys.asc | gpg --import
(
cd "$wrapper_dir"
$checkSum -c "${file}.sha256" || failed_verification
)
(
cd "$wrapper_dir"
gpg -u "$PRYLABS_SIGNING_KEY" --verify "${file}.sig" "$file" || failed_verification
)
color "32;1" "Verified ${file} has been signed by Prysmatic Labs."
}
function failed_verification() {
MSG=$(
cat <<-END
Failed to verify Prysm binary. Please erase downloads in the
dist directory and run this script again. Alternatively, you can use a
A prior version by specifying environment variable USE_PRYSM_VERSION
with the specific version, as desired. Example: USE_PRYSM_VERSION=v1.0.0-alpha.5
If you must wish to continue running an unverified binary, specific the
environment variable PRYSM_ALLOW_UNVERIFIED_BINARIES=1
END
)
color "31" "$MSG"
exit 1
}
get_prysm_version
color "37" "Latest Prysm version is $prysm_version."
if [ "${USE_PRYSM_MODERN:=false}" = "true" ]; then
BEACON_CHAIN_REAL="${wrapper_dir}/beacon-chain-${prysm_version}-modern-${system}-${arch}"
else
BEACON_CHAIN_REAL="${wrapper_dir}/beacon-chain-${prysm_version}-${system}-${arch}"
fi
VALIDATOR_REAL="${wrapper_dir}/validator-${prysm_version}-${system}-${arch}"
CLIENT_STATS_REAL="${wrapper_dir}/client-stats-${prysm_version}-${system}-${arch}"
if [[ $1 == beacon-chain ]]; then
if [[ ! -x $BEACON_CHAIN_REAL ]]; then
color "34" "Downloading beacon chain@${prysm_version} to ${BEACON_CHAIN_REAL} (${reason})"
if [ "${USE_PRYSM_MODERN}" = "true" ]; then
file=beacon-chain-${prysm_version}-modern-${system}-${arch}
else
file=beacon-chain-${prysm_version}-${system}-${arch}
fi
res=$(curl -w '%{http_code}\n' -f -L "https://prysmaticlabs.com/releases/${file}" -o "$BEACON_CHAIN_REAL" | ( grep 404 || true ) )
if [[ $res == 404 ]];then
echo "No prysm beacon chain found for ${prysm_version},(${file}) exit"
exit 1
fi
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sha256" -o "${wrapper_dir}/${file}.sha256"
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sig" -o "${wrapper_dir}/${file}.sig"
chmod +x "$BEACON_CHAIN_REAL"
else
color "37" "Beacon chain is up to date."
fi
fi
if [[ $1 == validator ]]; then
if [[ ! -x $VALIDATOR_REAL ]]; then
color "34" "Downloading validator@${prysm_version} to ${VALIDATOR_REAL} (${reason})"
file=validator-${prysm_version}-${system}-${arch}
res=$(curl -w '%{http_code}\n' -f -L "https://prysmaticlabs.com/releases/${file}" -o "$VALIDATOR_REAL" | ( grep 404 || true ) )
if [[ $res == 404 ]];then
echo "No prysm validator found for ${prysm_version}, (${file}) exit"
exit 1
fi
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sha256" -o "${wrapper_dir}/${file}.sha256"
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sig" -o "${wrapper_dir}/${file}.sig"
chmod +x "$VALIDATOR_REAL"
else
color "37" "Validator is up to date."
fi
fi
if [[ $1 == client-stats ]]; then
if [[ ! -x $CLIENT_STATS_REAL ]]; then
color "34" "Downloading client-stats@${prysm_version} to ${CLIENT_STATS_REAL} (${reason})"
file=client-stats-${prysm_version}-${system}-${arch}
res=$(curl -w '%{http_code}\n' -f -L "https://prysmaticlabs.com/releases/${file}" -o "$CLIENT_STATS_REAL" | ( grep 404 || true ) )
if [[ $res == 404 ]];then
echo "No prysm client stats found for ${prysm_version},(${file}) exit"
exit 1
fi
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sha256" -o "${wrapper_dir}/${file}.sha256"
curl --silent -L "https://prysmaticlabs.com/releases/${file}.sig" -o "${wrapper_dir}/${file}.sig"
chmod +x "$CLIENT_STATS_REAL"
else
color "37" "Client-stats is up to date."
fi
fi
if [[ $1 == slasher ]]; then
color "41" "The slasher binary is no longer available. Please use the --slasher flag with your beacon node. See: https://docs.prylabs.network/docs/prysm-usage/slasher/"
exit 1
fi
case $1 in
beacon-chain)
readonly process=$BEACON_CHAIN_REAL
;;
validator)
readonly process=$VALIDATOR_REAL
;;
client-stats)
readonly process=$CLIENT_STATS_REAL
;;
*)
color "31" "Process '$1' is not found!"
color "31" "Usage: ./prysm.sh PROCESS FLAGS."
color "31" " ./prysm.sh PROCESS --download-only."
color "31" "PROCESS can be beacon-chain, validator, or client-stats."
exit 1
;;
esac
verify "$process"
if [[ "$#" -gt 1 ]] && [[ $2 == --download-only ]]; then
color "37" "Only download operation is requested, done."
exit 0
fi
color "36" "Starting Prysm $1 ${*:2}"
exec -a "$0" "${process}" "${@:2}"