Installs iOS SDK from XCode 3 to XCode 4

xcode3_to_xcode4_sdk_install.sh

#!/bin/sh
# Copyright 2010 Edovia. All rights reserved.
# Created by Marc-Etienne M.Léveillé on 02-08-10

function exit_with_message {
  echo $1
  exit 1
}

if [ $UID -ne 0 ]; then
  echo "$0 must be run has root"
  exit 2
fi

read -e -p "XCode 3 path [Default : /Developer] : " XCODE3_INSTALL_PATH
[ -z $XCODE3_INSTALL_PATH ] && XCODE3_INSTALL_PATH=/Developer
[ -d $XCODE3_INSTALL_PATH ] || exit_with_message "Path $XCODE3_INSTALL_PATH does not exists"
[ -d $XCODE3_INSTALL_PATH/Platforms/iPhoneOS.platform/Developer/SDKs ] || exit_with_message "Could not find XCode installation at $XCODE3_INSTALL_PATH"

read -e -p "XCode 4 path [Default : /Xcode4] : " XCODE4_INSTALL_PATH
[ -z $XCODE4_INSTALL_PATH ] && XCODE4_INSTALL_PATH=/Xcode4
[ -d $XCODE4_INSTALL_PATH ] || exit_with_message "Path $XCODE4_INSTALL_PATH does not exists"
[ -d $XCODE4_INSTALL_PATH/Platforms/iPhoneOS.platform/Developer/SDKs ] || exit_with_message "Could not find XCode installation at $XCODE4_INSTALL_PATH"

printf "Available iOS SDK versions : "
ls $XCODE3_INSTALL_PATH/Platforms/iPhoneOS.platform/Developer/SDKs
read -e -p "iOS SDK Version to install in XCode 4 [Default : 4.1] : " VERSION_TO_INSTALL
[ -z $VERSION_TO_INSTALL ] && VERSION_TO_INSTALL="4.1"

function install_sdk {
  SUB_PATH=$1
  printf "Copying $SUB_PATH..."
  if [ -d $XCODE3_INSTALL_PATH/$SUB_PATH ]; then
    if [ -e $XCODE4_INSTALL_PATH/$SUB_PATH ]; then
      echo "Destination folder already exists"
    else
      cp -a $XCODE3_INSTALL_PATH/$SUB_PATH $XCODE4_INSTALL_PATH/$SUB_PATH
      if [ $? -eq 0 ]; then
        echo "Done"
      else
        echo "Some error occured while copying, did you sudo?"
      fi
    fi
  else
    echo "SDK does not seem to be installed"
  fi
}

install_sdk Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS$VERSION_TO_INSTALL.sdk
install_sdk Platforms/iPhoneOS.platform/DeviceSupport/$VERSION_TO_INSTALL
install_sdk Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator$VERSION_TO_INSTALL.sdk