prysm-pulse/prysm.sh
Preston Van Loon 4c1e2ba196
Add prysm.sh script (#5042)
* Add prysm.sh script

* Add dist to gitignore

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
2020-03-09 12:19:53 -05:00

131 lines
4.1 KiB
Bash
Executable File

#!/bin/bash
set -eu
# Use this script to download the latest Prysm release binary.
# Usage: ./prysm.sh PROCESS FLAGS
# PROCESS can be one of beacon-chain or validator.
# FLAGS are the flags or arguments passed to the PROCESS.
# 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
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" "PROCESS can be beacon-chain or validator."
exit 1
fi
readonly wrapper_dir="$(dirname "$(get_realpath "${BASH_SOURCE[0]}")")/dist"
arch=$(uname -m)
arch=${arch/x86_64/amd64}
arch=${arch/aarch64/arm64}
readonly os_arch_suffix="$(uname -s | tr '[:upper:]' '[:lower:]')-$arch"
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 -s https://api.github.com/repos/prysmaticlabs/prysm/releases/latest | grep "tag_name" | cut -d : -f 2,3 | tr -d \" | tr -d , | tr -d [:space:])
readonly prysm_version
fi
}
get_prysm_version
color "37" "Latest Prysm version is $prysm_version."
BEACON_CHAIN_REAL="${wrapper_dir}/beacon-chain-${prysm_version}-${os_arch_suffix}"
VALIDATOR_REAL="${wrapper_dir}/validator-${prysm_version}-${os_arch_suffix}"
if [[ ! -x $BEACON_CHAIN_REAL ]]; then
color "34" "Downloading beacon chain@${prysm_version} to ${BEACON_CHAIN_REAL} (${reason})"
curl -L "https://github.com/prysmaticlabs/prysm/releases/download/${prysm_version}/beacon-chain-${prysm_version}-${os_arch_suffix}" -o $BEACON_CHAIN_REAL
chmod +x $BEACON_CHAIN_REAL
else
color "37" "Beacon chain is up to date."
fi
if [[ ! -x $VALIDATOR_REAL ]]; then
color "34" "Downloading validator@${prysm_version} to ${VALIDATOR_REAL} (${reason})"
curl -L "https://github.com/prysmaticlabs/prysm/releases/download/${prysm_version}/validator-${prysm_version}-${os_arch_suffix}" -o $VALIDATOR_REAL
chmod +x $VALIDATOR_REAL
else
color "37" "Validator is up to date."
fi
case $1 in
beacon-chain)
readonly process=$BEACON_CHAIN_REAL
;;
validator)
readonly process=$VALIDATOR_REAL
;;
*)
color "31" "Usage: ./prysm.sh PROCESS FLAGS."
color "31" "PROCESS can be beacon-chain or validator."
;;
esac
color "36" "Starting Prysm $1 ${@:2}"
exec -a "$0" "${process}" "${@:2}"