NSRevolution: How Ruby Hackers Built the New Objective-C Open Source Community

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NSRevolution How Ruby hackers built the new Objective-C Open Source community

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“A Tale of Two Languages”

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Objective-C Ruby

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foo.bar(baz) [foo bar:baz];

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underscore_variable_name def short(options = {}) CAPITALIZED_CONSTANT Module::Class camelCaseVariableName - (void)longMethodWithParameter: andAnotherParameter: kCamelCaseConstant MNClass

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• Smalltalk • C • Smalltalk • Perl • Eiffel • Lisp

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Smalltalk

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OOP objects passing messages to one-another

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1 to: 10 do:[ :i | Transcript show:i. Transcript show:' '. Transcript show:i sqt. Transcript cr. ].

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myButton := Button new. myButton label: 'press me'. myButton action: [ myButton destroy ]. myButton open.

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A brief statement about cultural forces & attributing surface-level causes to large phenomena

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Conway’s Law Software architecture mirrors communication structures of the organizations creating it

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WWDC

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WWDC – is the – embodiment – of –  developer relations

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Meanwhile...

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Rails

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Rails was exactly what the web needed in 2005

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• Noobs • Iconoclasts • Dillitants • Hipsters • Scavengers • Establishmentarians Evolution of Rubyists

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Rubyist Tent Poles • TDD • Tooling • Progress • Overthinking

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iPhone

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Rails 1.0 12/2005 iPhone SDK 3/2008

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≈ 2 Years

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≈ 1 Startup

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Objective C for Rubyists

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CocoaPods

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1.3k Projects on CocoaPods

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For the first time, we control our ecosystem

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Write iOS Apps with Ruby RubyMotion

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• Teacup • Sugarcube • Motion-Xray

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Stylesheets for iOS NUI

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@primaryFontName: HelveticaNeue; @secondaryFontName: HelveticaNeue-Light; @primaryFontColor: #333333; @primaryBackgroundColor: #E6E6E6; Button { background-color: @primaryBackgroundColor; border-color: #A2A2A2; border-width: @primaryBorderWidth; font-color: @primaryFontColor; font-color-highlighted: #999999; font-name: @primaryFontName; font-size: 18; corner-radius: 7; } NavigationBar { background-tint-color: @primaryBackgroundColor; font-name: @secondaryFontName; font-size: 20; font-color: @primaryFontColor; text-shadow-color: #666666; text-shadow-offset: 1,1; }

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Integration Testing Framework KIF

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+ (id)scenarioToLogIn; { KIFTestScenario *scenario = [KIFTestScenario scenarioWithDescription:@"Test that a user can successfully log in."]; [scenario addStep:[KIFTestStep stepToReset]]; [scenario addStepsFromArray:[KIFTestStep stepsToGoToLoginPage]]; [scenario addStep:[KIFTestStep stepToEnterText:@"[email protected]" intoViewWithAccessibilityLabel:@"Login User Name"]]; [scenario addStep:[KIFTestStep stepToEnterText:@"thisismypassword" intoViewWithAccessibilityLabel:@"Login Password"]]; [scenario addStep:[KIFTestStep stepToTapViewWithAccessibilityLabel:@"Log In"]]; // Verify that the login succeeded [scenario addStep:[KIFTestStep stepToWaitForTappableViewWithAccessibilityLabel:@"Welcome"]]; return scenario; } @end

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Functional Reactive Programming ReactiveCocoa

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[RACAble(self.username) subscribeNext:^(NSString *newName) { NSLog(@"%@", newName); }];

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Cucumber for iOS Frank

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An Extensible Open Source Mobile Backend Framework Helios

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• Core Data Synchronization • Push Notification • In-App Purchase • Passbook • Logging & Analytics

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• github.com/CocoaPods • github.com/ReactiveCocoa • github.com/square/KIF • github.com/tombenner/nui • github.com/moredip/Frank • github.com/helios-framework