Script to Auto Update Plex on Synology nas [rev6]

Plex Media Server NAS & Devices
67

@MPH_91 Try this script and let me know if it works for you:

#!/bin/bash

# restrict script execution to root
if [[ ${EUID} -ne 0 ]]; then
  echo "Must be run as root. Exiting script..."
  exit 1
fi

# configurable download path
TMP_DL_PATH='/tmp'

#######################################
# Reports action status and removes
# downloaded installer file.
# Globals:
#   TMP_DL_PATH
# Arguments:
#   Exit status, an integer
#   Action, a string
# Outputs:
#   Writes action and status to stdout
#######################################
check_status() {

  if [[ $1 -ne 0 ]]; then
    echo "$2 failed. Exiting script..."
    rm -f "${TMP_DL_PATH}"/"${pms_pkg}" 2>/dev/null
    exit 1
  else
    echo "$2 succeeded."
  fi

}

# get pms path, token, and package info
pms_path=$(find / -path '*/Plex Media Server/Preferences.xml' -print -quit 2>/dev/null)
pms_token=$(sed -n 's/.*PlexOnlineToken="\([^"]*\).*/\1/p' "${pms_path}")
pms_info=$(curl -s "https://plex.tv/api/downloads/5.json?channel=plexpass&X-Plex-Token=${pms_token}")

# check if pms_token is defined
if [[ -z "${pms_token}" ]]; then
  echo "Unable to locate PMS Token. Exiting script..."
  exit 1
fi

# get current, new, and greater versions
cur_version=$(synopkg version "Plex Media Server")
new_version=$(jq -r '.nas.Synology.version' <<< "${pms_info}")
gtr_version=$(echo -e "${cur_version}\n${new_version}" | sort -V | tail -1)

# compare package versions
if [[ "${gtr_version}" == "${cur_version}" ]]; then
  echo "Plex Media Server is up-to-date."
else

  # notify new version available
  echo "Plex Media Server version ${new_version} is available..."
  synonotify PKGHasUpgrade '{"[%HOSTNAME%]": $(hostname), "[%OSNAME%]": "Synology", "[%PKG_HAS_UPDATE%]": "Plex", "[%COMPANY_NAME%]": "Synology"}'

  # get model and cpu architecture info
  model=$(cat /proc/sys/kernel/syno_hw_version)
  cpu=$(uname -m)

  # check if cpu architecture is armv7
  if [[ "${cpu}" == "armv7"* ]]; then
    # filter rules based on model definitions outlined here:
    # curl -s 'https://plex.tv/api/downloads/5.json?channel=plexpass' | jq '.nas.Synology.releases[] | select(.label | contains("ARMv7"))'
    if [[ ${model//[^0-9]/} =~ 1[34]$ && \
          "${model}" != "DS414j"* ]] || \
       [[ "${model}" =~ ^(DS115j|RS815|DS216se) ]] ; then
      arch="armv7hf"
    elif [[ ${model//[^0-9]/} =~ 1[5-8]$ ]]; then
      arch="armv7hf_neon"
    fi
  # otherwise assign value of cpu to arch
  else
    arch="${cpu}"
  fi

  # get download url
  pms_dl_url=$(jq -r '.nas.Synology.releases[] | select(.build=="linux-'"${arch}"'") | .url' <<< "${pms_info}")
  pms_pkg="${pms_dl_url##*/}"

  # check if pms_dl_url is defined
  if [[ -z "${pms_dl_url}" ]]; then
    echo "Download URL not defined because CPU type is ${arch}. Exiting script..."
    exit 1
  fi

  # download file to TMP_DL_PATH
  echo "Downloading ${pms_pkg}..."
  mkdir -p "${TMP_DL_PATH}"
  wget -P "${TMP_DL_PATH}" "${pms_dl_url}"
  check_status $? "Download"

  # install package
  echo "Installing ${pms_pkg}..."
  synopkg install "${TMP_DL_PATH}/${pms_pkg}"
  check_status $? "Install"

  # start plexmediaserver
  echo "Starting Plex Media Server..."
  synopkg start "Plex Media Server"
  check_status $? "Startup"

  # remove package
  rm -f "${TMP_DL_PATH}/${pms_pkg}" 2>/dev/null

fi