MacRuby for Fun and Profit

MacRuby For fun... and proﬁt!Presented by: Joshua Ballanco

A quick introduction...• Been using Ruby since 2004• MacRuby Core Team member• Worked for Apple 2006 to 2010• Currently at Patch (AOL)• https://github.com/jballanc• @manhattanmetric

Overview• Using MacRuby as a Cocoa REPL• Cocoa Development with MacRuby • Getting Started • Building and Running • Hooking Up a UI • Using Gems • Packaging and Shipping

What is MacRuby?• http://www.macruby.org• http://www.macruby.org/ﬁles/• http://www.macruby.org/ﬁles/nightlies/• Available from RVM (but not recommended)• Source at GitHub: https://github.com/MacRuby/MacRuby

What is MacRuby?• Compiling MacRuby: • Need LLVM *2.9* (see the README) • rake ; sudo rake install• Bugs – https://www.macruby.org/trac/report• MacRuby-devel mailing list• @macruby, #macruby

Ruby Syntax

Ruby Syntax Parser MRI’s parse.y Compiler RoxorCompiler <C++> VM (sans GVL) LLVM (with JIT)RoxorVM & RoxorCore <C++> Objective-C Runtime

MacRuby for Fun!• REPL – Read Eval Print Loop

MacRuby for Fun!• REPL – Read Eval Print Loop• Useful tool for learning, development, and debugging

MacRuby for Fun!• REPL – Read Eval Print Loop• Useful tool for learning, development, and debugging• LISP, Python, Ruby all beneﬁt from a REPL• C, C++, Java do not

MacRuby for Fun!• REPL – Read Eval Print Loop• Useful tool for learning, development, and debugging• LISP, Python, Ruby all beneﬁt from a REPL• C, C++, Java do not• Obj-C ...has MacRuby!

MacRuby for Fun!

MacRuby for Fun!• Let’s learn CoreData!

MacRuby for Fun!• Let’s learn CoreData!• There sure is a lot of documentation on http://developer.apple.com about CoreData

Core Data Utility TutorialData Management 2010-09-19

ContentsIntroduction Introduction to Core Data Utility Tutorial 7 Who Should Read This Document 7 Organization of This Document 7 See Also 8Chapter 1 Overview of the Tutorial 9 Task Goal 9Chapter 2 Creating the Project 11 Create a New Project 11 Create the project 11 Link the Core Data framework 11 Adopt Garbage Collection 12 What Happened? 12Chapter 3 Creating the Managed Object Model 13 Specifying the Entity 13 Create the Managed Object Model 13 Create the Model Instance 13 Create the Entity 14 Add the Attributes 14 Add a Localization Dictionary 15 Instantiate a Managed Object Model 16 Build and Test 16 Complete Listing 16Chapter 4 The Application Log Directory 19 The applicationLogDirectory Function 19 Update the main Function 20 Build and Test 20Chapter 5 Creating the Core Data Stack 21 Overview 21 The managedObjectContext Function 21 Create the Context Instance 21 Set up the Persistent Store Coordinator and Store 22 3 2010-09-19 | © 2005, 2010 Apple Inc. All Rights Reserved.

CHAPTER 8 Complete Source Listings if ([key isEqualToString:@"processID"]) { self.processID = 0; } else { [super setNilValueForKey:key]; } } @end38 The Run Class 2010-09-19 | © 2005, 2010 Apple Inc. All Rights Reserved.

MacRuby for Fun!• Let’s learn CoreData!• There sure is a lot of documentation on http://developer.apple.com about CoreData

MacRuby for Fun!• Let’s learn CoreData!• There sure is a lot of documentation on http://developer.apple.com about CoreData• Documentation is boring :-(

setup.rb

MacRuby for Fun!• Let’s learn CoreData!• There sure is a lot of documentation on http://developer.apple.com about CoreData• Documentation is boring... :-(

MacRuby for Fun!• Let’s learn CoreData!• There sure is a lot of documentation on http://developer.apple.com about CoreData• Documentation is boring... :-(• REPLs are fun! :-)

MacRuby for Proﬁt!• Things you will need: • MacRuby nightly build (or 0.11 when it comes out) • Xcode 4.2 (v4.1 is deﬁnitely broken, v3- series may still work) • Gumption (and the mailing list address)

MacRuby for Proﬁt!• Install Xcode FIRST! then MacRuby• Start Xcode, choose the MacRuby template• Build and go!

Building and Running• MacRuby template already contains targets needed to compile, build, and run• macruby_deploy does all the hard work...

Hooking Up a UI• MacRuby classes are Objective-C classes• Deﬁne outlets with attr_* methods• Any MacRuby method with a single argument named “sender” can be used as an action

Using Gems• Install with sudo macgem install <gemname>• Require Gems in rb• Use Gems for Development• Vendor Gems with macruby_deploy --gem for Distribution

Packaging and Shipping• App bundles generated by macruby_deploy are relocatable to machines without MacRuby (or even with incompatible versions of MacRuby)• Bundles can be signed for App store distribution with the codesign CLI tool• Excellent blog post at: http://astonj.com/ tech/how-to-submit-your-macruby-app-to- the-mac-app-store/

Bonus!

MacRuby......and you didn’t even know it!!!• CocoaPods!• https://github.com/CocoaPods/CocoaPods• Like Gems for iOS (and OS X... and MacRuby)• Uses MacRuby under the covers• Complemented by Laurent Sansonetti!

Thank you! *Flame transition quota fulﬁlled

Questions? *Flame transition quota fulﬁlled

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MacRuby for Fun and Profit

by Joshua Ballanco on Dec 14, 2011

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