Scaling iOS Development

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Scaing iOS Development Vidu Pirathaparajah Piet Brauer XING AG

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What does scaling mean?

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Adding more people?

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Scaling Architecture

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Architecture should be about enabling small teams to work on small components » Mike Hadlow

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Many Feature Teams

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4 + 1 iOS Engineers » Matthias » Marc » Piet » Vidu » Stefan (Sabbatical)

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Code base ~90.000 LOC

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Feature Development Work ﬂow

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Work ﬂow of building a new Feature

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Bottleneck

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Our Vision

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Baby steps

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No content

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How Infrastructure, Cococapods and pain

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CocoaPods » own specs repo » 20 Pods » own pod-template

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Rake tasks rake bootstrap # Installs dependencies rake ci # Runs everything needed for the ci server rake deploy # Deploy Beta rake release # Release a new version of the Pod rake spec # Runs the specs rake test:listen # Listens to ﬁle events and runs the tests rake test:setup_xing # Reset and setup simulator settings

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Jenkins » running unit tests » running KIF tests » Deploying Alpha/Beta

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Sandboxes

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XING internal App Store

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Pod template Creating `CocoaHeadsBerlin` Pod Conﬁguring template To learn more about the template see: `https://github.com/xing/pod-template.git` To learn more about creating a new pod, see: `http://guides.cocoapods.org/making/making-a-cocoapod`

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Pain

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Versioning » Semantic versioning » updating minor versions and all dependent pods » Releasing a new version of a pod can break all others

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Data Model » one Core Data ﬁle » pods highly depend on it » Updating it is a mess » Updating all pods that depend on it much more

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Jenkins » setup Jenkins builds is time consuming » build forks on Jenkins is not possible yet