Update (or install) the latest Bitwarden

bitwarden-update.sh

#!/usr/bin/env bash
# Update (or install) the latest Bitwarden
# Optimized for Debian/Ubuntu + GNOME
# ffflorian 2019

set -e
SCRIPT_NAME="${0##*/}"

INSTALL_DIR="/opt/Bitwarden"
EXEC_BIN="${INSTALL_DIR}/bitwarden"
TEMP_DIR="$(mktemp -d)"
DEB_FILE="${TEMP_DIR}/bitwarden.deb"
CONFIG_FILE="${HOME}/.config/Bitwarden/data.json"
RELEASE_URL="https://api.github.com/repos/bitwarden/desktop/releases/latest"
USE_CURL="yes"
FORCE="no"

_cleanup() {
  rm -rf "${TEMP_DIR}"
}

trap _cleanup EXIT

_compare_version() {
  printf "%03d%03d%03d%03d" $(echo "${1}" | tr '.' ' ')
}

get_latest_release() {
  if [ "${USE_CURL}" = "yes" ]; then
    curl -sL "${RELEASE_URL}" | grep '"tag_name":' | sed -E 's/.*"v?([^"]+)".*/\1/'
  else
    wget -qO- "${RELEASE_URL}" | grep '"tag_name":' | sed -E 's/.*"v?([^"]+)".*/\1/'
  fi
}

_print_usage() {
cat <<EOF
Usage: ${SCRIPT_NAME} [option]

Options:
 --force (-f)       Reinstall Bitwarden if it is already installed.

Commands:
 --help (-h)        Display this help message
EOF
}

while :
do
  case "${1}" in
    -f|--force )
        FORCE="force"
        shift
        ;;
    -h|--help )
        _print_usage
        exit 0
        ;;
    * )
        break
        ;;
  esac
done

if [ -d "${INSTALL_DIR}" ]; then
  if [ -r "${EXEC_BIN}" ] && [ -r "${CONFIG_FILE}" ]; then
    CURRENT_VERSION="$(sed -n 's/.*"installedVersion": "\(.*\)",/\1/p' "${CONFIG_FILE}")"
  else
    read -r -p "The current Bitwarden installation seems to be broken. Would you like to reinstall the latest version? [y/N] " RESPONSE

    case "${RESPONSE}" in
      [nN][oO]|[nN]|"" ) exit 0 ;;
    esac
    FORCE="force"
  fi
else
  read -r -p "Bitwarden is not installed yet. Would you like to install it? [y/N] " RESPONSE

  case "${RESPONSE}" in
    [nN][oO]|[nN]|"" ) exit 0 ;;
  esac
  FORCE="force"
fi

if ! command -v "curl" > /dev/null; then
  USE_CURL="no"
fi

LATEST_VERSION="$(get_latest_release)"

if [ "${FORCE}" != "force" ]; then
  if [ "$(_compare_version "${LATEST_VERSION}")" -le "$(_compare_version "${CURRENT_VERSION}")" ]; then
    echo "No update needed, ${CURRENT_VERSION} is the latest Bitwarden version available."
    echo "Run this script with --force to reinstall this Bitwarden version."
    exit 0
  fi
fi

DOWNLOAD_URL="https://github.com/bitwarden/desktop/releases/download/v${LATEST_VERSION}/Bitwarden-${LATEST_VERSION}-amd64.deb"

echo "Downloading Bitwarden ${LATEST_VERSION} from ${DOWNLOAD_URL} ... "

if [ "${USE_CURL}" = "yes" ]; then
  curl -o "${DEB_FILE}" -L "${DOWNLOAD_URL}"
else
  wget -O "${DEB_FILE}" "${DOWNLOAD_URL}"
fi

printf "OK\\n\\n"

if [ ! -r "${DEB_FILE}" ]; then
  echo "Error: could not find downloaded file \"${DEB_FILE}\"".
  exit 1
fi

echo "Installing Bitwarden ... "
sudo dpkg -i "${DEB_FILE}"

echo "All done!"