diff --git a/balenaEtcher.sh b/balenaEtcher.sh new file mode 100644 index 0000000..fc72fdc --- /dev/null +++ b/balenaEtcher.sh @@ -0,0 +1,240 @@ +#!/bin/sh +#################################################################################################### +# # +# ABOUT THIS PROGRAM # +# # +# NAME # +# balenaEtcher # +# # +# SYNOPSIS # +# sudo balena-etcher.sh # +# # +#################################################################################################### +# # +# HISTORY # +# Version: 1.0 # +# # +# - 1.0 Martyn Watts, 30.09.2021 Initial Build # +# # +#################################################################################################### + +#################################################################################################### +# 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="1.0" + +# 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/Logs/balenaEtcherInstallScript.log" +deplog="/var/tmp/depnotify.log" + + +#################################################################################################### +# Script Startup # +#################################################################################################### + +# 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} ${downloadUrl}) + /usr/bin/curl -s -o /tmp/${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." >> ${logfile} + /usr/bin/hdiutil attach /tmp/${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." >> ${logfile} + /bin/rm /tmp/${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 +