#!/bin/sh #################################################################################################### # # # ABOUT THIS PROGRAM # # # # NAME # # balenaEtcher # # # # SYNOPSIS # # sudo balena-etcher.sh # # # #################################################################################################### # # # HISTORY # # Version: 1.1 # # # # - 1.0 Martyn Watts, 30.09.2021 Initial Build # - 1.1 Martyn Watts, 03.12.2012 Changed the /tmp paths to /Library/Caches/com.purplecomputing.mdm/ # # # #################################################################################################### #################################################################################################### # Program Variables # #################################################################################################### # The version of this script, it is used in the logs so you can see which version of the script has # been used and will help with script debugging scriptver="1.1" # The url of the webpage to scrape for the latest version number and download link. releaseNotesUrl='https://github.com/balena-io/etcher/blob/master/CHANGELOG.md' # Installation Method, are we using a DMG or PKG to install the app? installMethod="DMG" # This is the name of the file we download this might be a dmg or a pkg. dnldfile='balenaEtcher.dmg' # The name of the application once it is installed without the .app extension appName='balenaEtcher' # The variable to hold the architecture type architecture=$(/usr/bin/arch) # Do we want to force quit the existing application before updating forceQuit='Y' # The 2 Log files we create as were progressing through the script # logfile is the main log which has each step and any errors sent to it # deplog is used to update the depnotify application with statuses and increments the progress bar logfile="/Library/Caches/com.purplecomputing.mdm/Logs/balenaEtcherInstallScript.log" deplog="/var/tmp/depnotify.log" #################################################################################################### # Script Startup # #################################################################################################### # Making Purple Cache directories for in the event that the helper script hasn't been run mkdir -p /Library/Caches/com.purplecomputing.mdm/ mkdir -p /Library/Caches/com.purplecomputing.mdm/Logs/ mkdir -p /Library/Caches/com.purplecomputing.mdm/Apps/ # Create log files if they don't exist if [[ ! -e ${logfile} ]]; then /bin/echo "---- New Log ----" >> $logfile fi if [[ ! -e ${deplog} ]]; then /bin/echo "---- New Log ----" >> $deplog fi # Open the log files if the openconsole parameter has been passed to the script if [[ $@ == "openconsole" ]]; then open ${logfile} open ${deplog} fi # Log the script version and date /bin/echo "`date`: Running script version: ${scriptver}" >> ${logfile} #################################################################################################### # Gathering the latest version number # #################################################################################################### # To get just the latest version number from the Release Notes URL /bin/echo "`date`: Getting latest version number" >> ${logfile} /bin/echo "Getting latest version number" latestver=$(curl -s ${releaseNotesUrl} | grep 'title="v' | cut -f4 -d'"' | sed -e 's/[a-zA-Z]//' ) #################################################################################################### # Gathering the download url # #################################################################################################### # To get the latest download link from the Release Notes URL /bin/echo "`date`: Getting download url" >> ${logfile} /bin/echo "Getting download url" if [[ $architecture == "arm64" ]]; then echo "Running Apple Silicon Setting correct URL" downloadUrl="https://github.com/balena-io/etcher/releases/download/v${latestver}/balenaEtcher-${latestver}.dmg" else echo "Running Intel Setting correct URL" downloadUrl="https://github.com/balena-io/etcher/releases/download/v${latestver}/balenaEtcher-${latestver}.dmg" fi # Display the latest version available in the logs /bin/echo "`date`: Latest version number is: ${latestver}" >> ${logfile} /bin/echo "Latest version number is: ${latestver}" #################################################################################################### # Check to see if app already installed and get the version if it is # #################################################################################################### # Is the app already installed? if [[ -e "/Applications/${appName}.app" ]]; then # Read the version number from the info.plist currentinstalledver=`/usr/bin/defaults read "/Applications/${appName}.app/Contents/Info" CFBundleShortVersionString` # Display the current installed version number in the logs /bin/echo "Current installed version is: $currentinstalledver" /bin/echo "`date`: Current installed version is: $currentinstalledver" >> ${logfile} # Check to see if the latest available version is the same as the installed version if [[ ${latestver} = ${currentinstalledver} ]]; then /bin/echo "${appName} is current. Exiting" /bin/echo "`date`: ${appName} is current. Exiting" >> ${logfile} /bin/echo "Status: ${appName} is current. Exiting" >> ${deplog} exit 0 fi else # update the logs to indicate that app is not already installed currentinstalledver="none" /bin/echo "${appName} is not installed" /bin/echo "`date`: ${appName} is not installed" >> ${logfile} fi #################################################################################################### # Compare the two versions, if they are different or the App is not present then download and # # install the new version. # #################################################################################################### # Check to see if the versions do not match if [[ "${currentinstalledver}" != "${latestver}" ]]; then # Display current and available versions in the logs /bin/echo "`date`: Current ${appName} version: ${currentinstalledver}" >> ${logfile} /bin/echo "Current ${appName} version: ${currentinstalledver}" /bin/echo "`date`: Available ${appName} version: ${latestver}" >> ${logfile} /bin/echo "Available ${appName} version: ${latestver}" # Download the file /bin/echo "`date`: Downloading newer version." >> ${logfile} /bin/echo "Downloading newer version." url=$(curl -Ls -o /dev/null -w %{url_effective} ${downloadUrl}) /usr/bin/curl -s -o /Library/Caches/com.purplecomputing.mdm/Apps/${dnldfile} ${url} # Force quit the application if [[ "${forceQuit}" = "Y" ]]; then killall ${appName} fi #################################################################################################### # Choose the correct installation method. # #################################################################################################### if [[ "${installMethod}" = "DMG" ]]; then # Mount the DMG /bin/echo "`date`: Mounting installer disk image." >> ${logfile} /usr/bin/hdiutil attach /Library/Caches/com.purplecomputing.mdm/Apps/${dnldfile} -nobrowse # Copy the file to the Applications folder - you may need to change the mounted volume name /bin/echo "`date`: Installing..." >> ${logfile} ditto -rsrc "/Volumes/${appName} ${latestver}/${appName}.app" "/Applications/${appName}.app" /bin/sleep 10 # Unmount the DMG /bin/echo "`date`: Unmounting installer disk image." >> ${logfile} /usr/bin/hdiutil detach $(/bin/df | /usr/bin/grep ${appName} | awk '{print $1}') -quiet /bin/sleep 10 else # Open the PKG with installer cd /tmp /usr/sbin/installer -pkg ${dnldfile} -target / fi # Clean up after the installation /bin/sleep 5 /bin/echo "`date`: Deleting the downloaded file." >> ${logfile} /bin/rm /Library/Caches/com.purplecomputing.mdm/Apps/${dnldfile} #################################################################################################### # Check to see if the update was successful. # #################################################################################################### # Get the version of the app from the info.plist newlyinstalledver=`/usr/bin/defaults read "/Applications/${appName}.app/Contents/Info" CFBundleShortVersionString` # Compare the installed version against the latest version if [[ "${latestver}" = "${newlyinstalledver}" ]]; then /bin/echo "`date`: SUCCESS: ${appName} has been updated to version ${newlyinstalledver}" >> ${logfile} /bin/echo "SUCCESS: ${appName} has been updated to version ${newlyinstalledver}" # If dockutil is installed remove existing dock icon and add new one if [[ -e "/usr/local/bin/dockutil" ]]; then /bin/echo "`date`: Removing Existing Dock Icon." >> ${logfile} /bin/echo "Removing Existing Dock Icon." /usr/local/bin/dockutil --remove "${appName}" --allhomes >> ${logfile} /bin/sleep 5 /bin/echo "`date`: Creating New Dock Icon." >> ${logfile} /bin/echo "Creating New Dock Icon." /usr/local/bin/dockutil --add "/Applications/${appName}.app" --position 1 --allhomes >> ${logfile} /bin/sleep 3 fi # Update log with Failed install and exit with exit code 1 else /bin/echo "`date`: ERROR: ${appName} update unsuccessful, version remains at ${currentinstalledver}." >> ${logfile} /bin/echo "ERROR: ${appName} update unsuccessful, version remains at ${currentinstalledver}." /bin/echo "---- End of script ----" >> ${logfile} exit 1 fi # App is up to date already so we log it. else /bin/echo "`date`: ${appName} is already up to date, running ${currentinstalledver}." >> ${logfile} /bin/echo "${appName} is already up to date, running ${currentinstalledver}." fi # Update log so show end of script /bin/echo "---- End of script ----" >> ${logfile} # Update DEP Notify to increment the progress bar - when used with multiple scripts /bin/echo "Command: DeterminateManualStep: 1" >> ${deplog} #Exit script with exit code 0 exit 0