Getting Groovy with iOS Development

My talk at GR8ConfUS 2015 that focusses on using tools from the groovy ecosystem for making iOS development easier.

Transcript

1. Getting Groovy with iOS Development
   Rahul Somasunderam
   8
   GR
   Conf
   July 2015
   

   View Slide

2. About Me
   lgtm.in, swaggydoc, ihe-iti
   !
   java, groovy, objective-c
   !
   @rahulsom
   

   View Slide

3. Where I work
   • We build a Health Information
   Exchange Population Health Tools
   • Used by 130 Health Systems, 600
   Hospitals, 20K physicians
   • We love Groovy
   

   View Slide

4. View Slide

5. View Slide

6. View Slide

7. Square Brackets
   Square Brackets Everywhere
   

   View Slide

8. But Shirley, there's got to be
   documentation
   

   View Slide

9. View Slide

10. Tools
    • XCode bad. AppCode good
    • Objective-C and Swift
    • Dependency Management
    • Build Tools
    • Functional Testing
    

    View Slide

11. Dependency Management
    

    View Slide

12. Ruby got there first.
    Deal with it!
    

    View Slide

13. View Slide

14. • Your app needs dependencies
    • Dependencies can be installed with Cocoapods
    • Cocoapods is a ruby gem
    • Ruby gems can be installed with Bundler
    • You WANT ruby in the user space; so RBENV
    • There is a brew formula for RBENV
    • brew is installed using system ruby
    

    View Slide

15. Build Tools
    

    View Slide

16. xcodebuild
    xcodebuild \
    -scheme Todos \
    -workspace Todos.xcworkspace \
    -sdk iphonesimulator \
    -configuration Debug \
    DSTROOT=/Users/rahul/src/Todos/build/dst \
    OBJROOT=/Users/rahul/src/Todos/build/obj \
    SYMROOT=/Users/rahul/src/Todos/build/sym \
    SHARED_PRECOMPS_DIR=/Users/rahul/src/Todos/build/shared \
    -destination 'platform=iOS Simulator,id=CAB835ED-3EE2-47B6-AD74-C06675651CEF' \
    test
    

    View Slide

17. xcodebuild
    • Too complex commands - Unruly bash scripts
    • Different tools for build, upload to testflight, hockeyapp
    • Very little documentation, very steep learning curve
    • What about functional testing?
    

    View Slide

18. xctool
    • Written in Objective-C
    • Needs advanced knowledge of Objective-C
    • What about functional testing?
    

    View Slide

19. Nomad CLI
    • Written in ruby
    • Great support for certificates, distribution profiles
    • Great support for distribution using iTunesConnect
    • What about functional testing?
    

    View Slide

20. What we need
    • Flexible build system
    • Support for distribution
    • Support for functional testing
    • Easy to install, even if you're an enterprise software company
    • Easy to run
    

    View Slide

21. Gradle Xcode Plugin
    buildscript {
    repositories {
    maven { url "https://plugins.gradle.org/m2/" }
    }
    dependencies {
    classpath "gradle.plugin.org.openbakery:xcodePlugin:0.11.3"
    }
    }
    !
    apply plugin: "org.openbakery.xcodeplugin"
    !
    xcodebuild {
    workspace = 'Todos.xcworkspace'
    scheme = 'Todos'
    target = 'Todos'
    sdk = 'iphonesimulator'
    }
    

    View Slide

22. • gradle xcodetest
    • gradle hockeyapp
    • gradle deploygate
    • gradle appstoreUpload
    • gradle oclint
    • gradle cpd
    • gradle crashlytics
    

    View Slide

23. Functional Testing
    

    View Slide

24. UIAutomation using Instruments
    • Record and Playback
    • DOM Tree access
    • Refactoring
    • Managing State
    • Tuneup JS? Bwoken?
    

    View Slide

25. Appium
    • Based on Selenium
    • Clients for several languages including Java
    • Makes your app stateless
    

    View Slide

26. Groovy + Spock
    • Spock's expressive testing
    • Groovy's metaprogramming to improve access to DOM
    

    View Slide

27. View Slide

28. Code
    • https://github.com/rahulsom/todos-ios/
    

    View Slide