Fix mac setup, see #988

Author: rosen-vladimirov

setup/native-script.rb

@@ -1,31 +1,44 @@
 # coding: utf-8
 
 # Only the user can manually download and install Xcode from AppStore
-puts "Installing Xcode... Please, click 'Get' or 'Update' to install Xcode from the App Store."
-`open 'macappstore://itunes.apple.com/us/app/xcode/id497799835'`
+puts "NativeScript requires Xcode. Do you have Xcode installed? (y/n)"
+puts "If you answer N, this script will open AppStore to download and install Xcode."
+puts "After you install Xcode, run this script again."
 
-until `xcodebuild -version`.include? "version" do
-  puts "Waiting for Xcode to finish installing..."
-  sleep(30)
+xcode = gets.chomp
+
+if xcode == "n" || xcode == "N"
+  system('open "macappstore://itunes.apple.com/us/app/xcode/id497799835"')
+  exit
+end
+
+if !(`xcodebuild -version`.include? "version")
+  puts "Xcode is not installed or not configured properly. Download, install and set it up and run this script again."
+  exit
 end
 
 puts "You need to accept the Xcode license agreement to be able to use the Xcode command-line tools. (You might need to provide your password.)"
-`sudo xcodebuild -license`
+system('sudo xcodebuild -license')
 
 # Install all other dependencies
 puts "Installing Homebrew... (You might need to provide your password.)"
-`ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"`
+system('ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"')
+
+if !(`brew --version`.include? "git revision")
+  puts "Homebrew is not installed or not configured properly. Download it from http://brew.sh/, install and set it up and run this script again."
+  exit
+end
 
 puts "Installing CocoaPods... This might take some time, please, be patient. (You might need to provide your password.)"
 system('sudo gem install cocoapods')
 
 puts "Installing Homebrew Cask... (You might need to provide your password.)"
 system('brew install caskroom/cask/brew-cask')
 
-puts "Installing the Java SE Development Kit... (You might need to provide your password.)"
+puts "Installing the Java SE Development Kit... This might take some time, please, be patient. (You might need to provide your password.)"
 system('brew cask install java')
-`echo "export JAVA_HOME=$(/usr/libexec/java_home)" >> ~/.bash_profile`
-`echo "export ANDROID_HOME=/usr/local/opt/android-sdk" >> ~/.bash_profile`
+system('echo "export JAVA_HOME=$(/usr/libexec/java_home)" >> ~/.bash_profile')
+system('echo "export ANDROID_HOME=/usr/local/opt/android-sdk" >> ~/.bash_profile')
 
 puts "Installing node.js 0.12"
 system('brew install homebrew/versions/node012')