iota.partners-iri-env-auto-updater.sh

iota.partners-iri-env-auto-updater.sh

#!/usr/bin/env bash

set -euo pipefail

readonly NODE_PATH="/home/iota/node"
readonly IOTA_ENV_FILE="$NODE_PATH/iota.env"
readonly SCRIPT_NAME=$(basename $0)

function get_latest_github_release {
  curl -s https://api.github.com/repos/iotaledger/iri/releases/latest | jq "[.assets][0][2].name" --raw-output
}

function get_download_url {
  curl -s https://api.github.com/repos/iotaledger/iri/releases/latest | jq "[.assets][0][2].browser_download_url"
}

function get_installed_version {
  raw=`grep -v "^#" $IOTA_ENV_FILE | grep -v "^$" | grep -o -P '(?<=IRI-).*(?=.jar)'`
  echo "IRI-$raw.jar"
}

log() {
  echo "$@"
  logger -p user.notice -t $SCRIPT_NAME "$@"
}

function v_is_digit {
  tr -cd 0-9 <<<"$@"
}

function update_iri {
  log "New IRI release $latest detected! Updating installed version $installed to the latest release $latest"
  sh -c "sudo rm -f $NODE_PATH/$installed" &&
  sh -c "sudo -u iota wget -qO $NODE_PATH/$latest $(get_download_url)" &&
  sed -i -e '${/IRI_VERSION/d;}' $IOTA_ENV_FILE &&
  echo "IRI_VERSION=$latest" >> $IOTA_ENV_FILE &&
  source $IOTA_ENV_FILE &&
  systemctl restart iota
}

function main {
  latest="$(get_latest_github_release)"
  installed="$(get_installed_version)"

  if [ "$latest" != "$installed" ] && [ $(v_is_digit ${latest}) ]; then
    update_iri
  fi
}

main