packaging.sh

#!/bin/bash
 
# by Andy Maloney
# http://asmaloney.com/2013/07/howto/packaging-a-mac-os-x-application-using-a-dmg/
 
# set up your app name, version number, and background image file name
APP_NAME="Seqotron"
VERSION="1.0.0"
DMG_BACKGROUND_IMG="Background.png"
APP_DIR="DerivedData/Seqotron/Build/Products/Release"


 
# you should not need to change these
APP_EXE="${APP_NAME}.app/Contents/MacOS/${APP_NAME}"
 
VOL_NAME="${APP_NAME} ${VERSION}"   # volume name will be "SuperCoolApp 1.0.0"
DMG_TMP="${VOL_NAME}-temp.dmg"
DMG_FINAL="${VOL_NAME}.dmg"         # final DMG name will be "SuperCoolApp 1.0.0.dmg"
STAGING_DIR="./Install"             # we copy all our stuff into this dir
 
 if [ -z "$DMG_BACKGROUND_IMG" ]; then
	# Check the background image DPI and convert it if it isn't 72x72
	_BACKGROUND_IMAGE_DPI_H=`sips -g dpiHeight ${DMG_BACKGROUND_IMG} | grep -Eo '[0-9]+\.[0-9]+'`
	_BACKGROUND_IMAGE_DPI_W=`sips -g dpiWidth ${DMG_BACKGROUND_IMG} | grep -Eo '[0-9]+\.[0-9]+'`
 
	if [ $(echo " $_BACKGROUND_IMAGE_DPI_H != 72.0 " | bc) -eq 1 -o $(echo " $_BACKGROUND_IMAGE_DPI_W != 72.0 " | bc) -eq 1 ]; then
	   echo "WARNING: The background image's DPI is not 72.  This will result in distorted backgrounds on Mac OS X 10.7+."
	   echo "         I will convert it to 72 DPI for you."
   
	   _DMG_BACKGROUND_TMP="${DMG_BACKGROUND_IMG%.*}"_dpifix."${DMG_BACKGROUND_IMG##*.}"
 
	   sips -s dpiWidth 72 -s dpiHeight 72 ${DMG_BACKGROUND_IMG} --out ${_DMG_BACKGROUND_TMP}
   
	   DMG_BACKGROUND_IMG="${_DMG_BACKGROUND_TMP}"
	fi
fi
 
# clear out any old data
rm -rf "${STAGING_DIR}" "${DMG_TMP}" "${DMG_FINAL}"
 
# copy over the stuff we want in the final disk image to our staging dir
mkdir -p "${STAGING_DIR}"
cp -rpf "${APP_DIR}/${APP_NAME}.app" "${STAGING_DIR}"
# ... cp anything else you want in the DMG - documentation, etc.
 
pushd "${STAGING_DIR}"

# remove symbol table from the executable
echo "Stripping ${APP_EXE}..."
strip -u -r "${APP_EXE}"
 
# compress the executable if we have upx in PATH
#  UPX: http://upx.sourceforge.net/
if hash upx 2>/dev/null; then
   echo "Compressing (UPX) ${APP_EXE}..."
   upx -9 "${APP_EXE}"
fi
 
# ... perform any other stripping/compressing of libs and executables
 
popd
 
# figure out how big our DMG needs to be
#  assumes our contents are at least 1M!
SIZE=`du -sh "${STAGING_DIR}" | sed 's/\([0-9\.]*\)M\(.*\)/\1/'` 
SIZE=`echo "${SIZE} + 1.0" | bc | awk '{print int($1+0.5)}'`
 
if [ $? -ne 0 ]; then
   echo "Error: Cannot compute size of staging dir"
   exit
fi
 
# create the temp DMG file
hdiutil create -srcfolder "${STAGING_DIR}" -volname "${VOL_NAME}" -fs HFS+ \
      -fsargs "-c c=64,a=16,e=16" -format UDRW -size ${SIZE}M "${DMG_TMP}"
 
echo "Created DMG: ${DMG_TMP}"
 
# mount it and save the device
DEVICE=$(hdiutil attach -readwrite -noverify "${DMG_TMP}" | \
         egrep '^/dev/' | sed 1q | awk '{print $1}')
 
sleep 2
 
# add a link to the Applications dir
echo "Add link to /Applications"
pushd /Volumes/"${VOL_NAME}"
ln -s /Applications
popd
 
# add a background image
if [ -z "$DMG_BACKGROUND_IMG" ]; then
	mkdir /Volumes/"${VOL_NAME}"/.background
	cp "${DMG_BACKGROUND_IMG}" /Volumes/"${VOL_NAME}"/.background/

	# tell the Finder to resize the window, set the background,
	#  change the icon size, place the icons in the right position, etc.
	echo '
	   tell application "Finder"
		 tell disk "'${VOL_NAME}'"
			   open
			   set current view of container window to icon view
			   set toolbar visible of container window to false
			   set statusbar visible of container window to false
			   set the bounds of container window to {400, 100, 920, 440}
			   set viewOptions to the icon view options of container window
			   set arrangement of viewOptions to not arranged
			   set icon size of viewOptions to 72
			   set background picture of viewOptions to file ".background:'${DMG_BACKGROUND_IMG}'"
			   set position of item "'${APP_NAME}'.app" of container window to {160, 205}
			   set position of item "Applications" of container window to {360, 205}
			   close
			   open
			   update without registering applications
			   delay 2
		 end tell
	   end tell
	' | osascript
else
	# tell the Finder to resize the window, set the background,
	#  change the icon size, place the icons in the right position, etc.
	echo '
	   tell application "Finder"
		 tell disk "'${VOL_NAME}'"
			   open
			   set current view of container window to icon view
			   set toolbar visible of container window to false
			   set statusbar visible of container window to false
			   set the bounds of container window to {400, 100, 920, 440}
			   set viewOptions to the icon view options of container window
			   set arrangement of viewOptions to not arranged
			   set icon size of viewOptions to 72
			   set position of item "'${APP_NAME}'.app" of container window to {160, 205}
			   set position of item "Applications" of container window to {360, 205}
			   close
			   open
			   update without registering applications
			   delay 2
		 end tell
	   end tell
	' | osascript

fi 
sync
 
# unmount it
hdiutil detach "${DEVICE}"
 
# now make the final image a compressed disk image
echo "Creating compressed image"
hdiutil convert "${DMG_TMP}" -format UDZO -imagekey zlib-level=9 -o "${DMG_FINAL}"
 
# clean up
rm -rf "${DMG_TMP}"
rm -rf "${STAGING_DIR}"
 
echo 'Done.'
 
exit