Preinstall script for SAP GUI 7.50 rev 5 installer for macOS

preinstall.sh

#!/bin/bash

JAVA_INSTALLER=$(/bin/ls "${0%/*}"/*jdk*.tar.gz | /usr/bin/head -1)
JAVA_OPENJFX_INSTALLER=$(/bin/ls "${0%/*}"/*openjfx*.zip | /usr/bin/head -1)
JAVA_HOME=$(/usr/libexec/java_home)
JAVA8JFX_INSTALLED="$JAVA_HOME/jre/lib/javafx.properties"
JAVAOPENJFX=$(/usr/bin/find /Library/Java/JavaVirtualMachines -maxdepth 1 -iname "*javafx*" -type d | /usr/bin/head -1)
JAVAOPENJFX_INSTALLED="$JAVAOPENJFX/lib/javafx.properties"
ERROR=0


function log {
	echo "$1"
	/usr/bin/logger "SAPGUI Installer: $1"
}

# Install Java 11 if Java 8 or Java 11 is not installed

if [[ -z "$JAVA_HOME" ]]; then

	log "Java is not installed"

	if [[ -e "$JAVA_INSTALLER" ]]; then
	
		log "Bundled Java package is $JAVA_INSTALLER"

        tar -xzf $JAVA_INSTALLER --directory /Library/Java/JavaVirtualMachines
        
        # Fix permissions on installed Java 11
        
        INSTALLED_JAVA=$(/usr/bin/find /Library/Java/JavaVirtualMachines -maxdepth 1 -iname "*jdk*" -type d | /usr/bin/head -1)
        log "Installed Java is $INSTALLED_JAVA"
        chown -R root:wheel "$INSTALLED_JAVA"
        chmod -R 755 "$INSTALLED_JAVA"
                
        # Verify that SAPMachine JDK is now installed
        
        /usr/libexec/java_home
        
        if [[ $? -eq 0 ]]; then
			log "Successfully installed $JAVA_INSTALLER"
          else
			log "ERROR! Installation of $JAVA_INSTALLER failed"
			ERROR=1
        fi
	else
		log "ERROR! Bundled Java package $JAVA_INSTALLER not found"
		ERROR=1
	fi
else
	log "Java is already installed"
fi

# Install OpenJFX if Java JFX is not installed

JAVA_HOME=$(/usr/libexec/java_home)

if [[ -n "$JAVA_HOME" ]]; then

	log "Java is installed. Checking for Java JFX"
	
	if [[ -z "$JAVAOPENJFX" ]] && [[ ! -f "$JAVA_HOME/jre/lib/javafx.properties" ]]; then
	  log "Java JFX is not installed."
	  
	  if [[ -e "$JAVA_OPENJFX_INSTALLER" ]]; then
	  
	    log "Installing OpenJFX."
	    unzip "$JAVA_OPENJFX_INSTALLER" -d /Library/Java/JavaVirtualMachines
	    
	    # Fix permissions on installed OpenJFX
        
	    JAVAOPENJFX_INSTALLED=$(/usr/bin/find /Library/Java/JavaVirtualMachines -maxdepth 1 -iname "*javafx*" -type d | /usr/bin/head -1)
	    log "Java JFX is installed at $JAVAOPENJFX_INSTALLED."
	    chown -R root:wheel "$JAVAOPENJFX_INSTALLED"
	    chmod -R 755 "$JAVAOPENJFX_INSTALLED"
 
	    # Verify that OpenJFX is now installed
	  
	    if [[ -e "$JAVAOPENJFX_INSTALLED/lib/javafx.properties" ]]; then
	      log "OpenJFX  is installed."
	    else
	      log "ERROR! OpenJFX is not installed."
	      ERROR=1 
	    fi
	  else
	     log "ERROR! $JAVA_OPENJFX_INSTALLER not found."
	     ERROR=1	
	  fi
	  
	else
	  log "Java JFX is already installed"
	fi
fi

exit $ERROR