Create macOS Install app from apple cdn packages

macOS_genrate_app.sh

#!/bin/bash

# Root location of file
#--------------------------
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"


# Check for Source files exist or not.
#----------------------------------------
if [ ! -f $DIR/src/BaseSystem.dmg ]; then                    		# Check for BaseSystem.dmg
    echo "File 'BaseSystem.dmg' not found in src!"
fi

if [ ! -f $DIR/src/BaseSystem.chunklist ]; then                    	# Check for BaseSystem.chunklist
    echo "File 'BaseSystem.chunklist' not found in src!"
fi

if [ ! -f $DIR/src/InstallInfo.plist ]; then                    	# Check for InstallInfo.plist
    echo "File 'InstallInfo.plist' not found in src!"
fi

if [ ! -f $DIR/src/InstallESDDmg.pkg ]; then                    	# Check for InstallESDDmg.pkg
    echo "File 'InstallESDDmg.pkg' not found in src!"
fi

if [ ! -f $DIR/src/AppleDiagnostics.dmg ]; then                    	# Check for AppleDiagnostics.dmg
    echo "File 'AppleDiagnostics.dmg' not found in src!"
fi

if [ ! -f $DIR/src/AppleDiagnostics.chunklist ]; then                   # Check for AppleDiagnostics.chunklist
    echo "File 'AppleDiagnostics.chunklist' not found in src!"
fi



# Taking ownership of downloaded files
#-------------------------------------------------
chmod a+x $DIR/src/BaseSystem.dmg
chmod a+x $DIR/src/BaseSystem.chunklist
chmod a+x $DIR/src/InstallInfo.plist
chmod a+x $DIR/src/InstallESDDmg.pkg
chmod a+x $DIR/src/AppleDiagnostics.dmg
chmod a+x $DIR/src/AppleDiagnostics.chunklist






# Renaming 'InstallESDDmg.pkg' to 'InstallESD.dmg'
#-------------------------------------------------
mv -i $DIR/src/InstallESDDmg.pkg $DIR/src/InstallESD.dmg


# Replace <string>InstallESDDmg.pkg</string> to <string>InstallESD.dmg</string> in 'src/InstallInfo.plist'
#----------------------------------------------------------------------------------------------------------
sed -i "" 's/<string>InstallESDDmg.pkg<\/string>/<string>InstallESD.dmg<\/string>/g' $DIR/src/InstallInfo.plist



# Remove these lines from 'src/InstallInfo.plist'
#------------------------------------------------
#		<key>chunklistURL</key>
#		<string>InstallESDDmg.chunklist</string>
#		<key>chunklistid</key>
#		<string>com.apple.chunklist.InstallESDDmg</string>
sed -i "" '30,33d' $DIR/src/InstallInfo.plist


# Replace <string>com.apple.pkg.InstallESDDmg</string> to <string>com.apple.dmg.InstallESD</string> in 'src/InstallInfo.plist'
#----------------------------------------------------------------------------------------------------------
sed -i "" 's/<string>com.apple.pkg.InstallESDDmg<\/string>/<string>com.apple.dmg.InstallESD<\/string>/g' $DIR/src/InstallInfo.plist


# Mount 'BaseSystem.dmg'
#-------------------------
hdiutil attach $DIR/src/BaseSystem.dmg


# Create Outout folder
#----------------------
mkdir $DIR/out


# Pull 'Install macOS XXXX.app' from 'BaseSystem.dmg'
#-----------------------------------------------------
cp -R /Volumes/macOS\ Base\ System/Install\ macOS\ Mojave\ Beta.app $DIR/out/Install\ macOS\ Mojave\ Beta.app


# Create SharedSupport folder inside 'Install macOS XXXX.app/Contents'
#----------------------------------------------------------------------
mkdir $DIR/out/Install\ macOS\ Mojave\ Beta.app/Contents/SharedSupport


# Copy All contents of src folder to 'Install macOS XXXX.app/Contents/SharedSupport'
#----------------------------------------------------------------------
cp -R $DIR/src/* $DIR/out/Install\ macOS\ Mojave\ Beta.app/Contents/SharedSupport


# UnMount 'BaseSystem.dmg'
#-------------------------
hdiutil detach /Volumes/macOS\ Base\ System