script for packaging OS X application in dmg

mkdmg.sh

#!/bin/sh
VOLNAME="My Cool App"
APPNAME=MyCoolApp
TARGET_BUILD_DIR=/Users/gonzo/Projects/MyCoolApp/build/Release

if [ -e "/Volumes/$VOLNAME" ]; then
    echo "Detaching old $VOLNAME"
    hdiutil detach "/Volumes/$VOLNAME"
fi

rm -f "$TARGET_BUILD_DIR/$VOLNAME.dmg" "$TARGET_BUILD_DIR/${VOLNAME}_big.dmg"

# create/attach dmg for distribution
echo "Creating blank DMG"

hdiutil create -size 10000k -volname "$VOLNAME" -attach -fs HFS+ "$TARGET_BUILD_DIR/${VOLNAME}_big.dmg"

cp -R "$TARGET_BUILD_DIR/$APPNAME.app" "/Volumes/$VOLNAME/"
ls -la "/Volumes/$VOLNAME/"
hdiutil detach "/Volumes/$VOLNAME"

echo "Compresing disk image"
hdiutil convert -format UDZO -o "$TARGET_BUILD_DIR/$VOLNAME.dmg" "$TARGET_BUILD_DIR/${VOLNAME}_big.dmg"

rm -f "$TARGET_BUILD_DIR/${VOLNAME}_big.dmg"