CocoaPods at Square

A Peek Into iOS Engineering at Square

Transcript

1. CocoaPods at Square BRIAN PARTRIDGE Register Team
2. REGISTER CASH CAVIAR CUSTOMER DISPLAY INTERNAL
3. Register Dependencies
4. Register Dependencies SquareCore SquareData PonyExpress Protocol Buffers Register
5. Register Dependencies SquareCore Register SquareData PonyExpress Protocol Buffers Hardware
6. Register Dependencies SquareCore Register SquareData PonyExpress Protocol Buffers Hardware
7. Register Dependencies SquareCore Register SquareData PonyExpress Protocol Buffers Hardware
8. Register Dependencies SquareData SquareCore PonyExpress Hardware Protocol Buffers Register
9. Register Dependencies SquareData SquareCore PonyExpress Hardware Protocol Buffers Register KIF OCMock
10. Register Dependencies SquareData SquareCore PonyExpress Hardware Protocol Buffers Register PonyDebugger Reveal KIF OCMock
11. Register Dependencies SquareData SquareCore PonyExpress Hardware Protocol Buffers Register PonyDebugger Reveal Crashlytics KIF OCMock
12. Dependency Management
13. In the dark times… Submodules Requires manipulating opaque SHAs. Vessel Internal tools for linking dependencies.
14. In the dark times… Slow Builds Xcode has to build each target. Release Management Managing branches in multiple repositories. Lost Engineer Time 15 hours a week.
15. In the dark times… Slow Builds Xcode has to build each target. Release Management Managing branches in multiple repositories. Lost Engineer Time 15 hours a week. There’s got to be a better way…
16. The Hunt VESSEL & SUBMODULES VESSEL & SUBTREES COCOAPODS CARTHAGE MAVEN/GRADLE Auto Download Dependencies Auto Build Config Dependency Versioning Nested Dependencies Diamond Dependencies Conflict Detection Tools & iOS Support Team Opinion Workflow Impact
17. CocoaPods Semantic Versioning Meaningful version numbers. a1b2c3d4… vs 1.23.45 Dependency Resolution Diamond dependencies are no longer surprises. Supports Libraries Does not require Frameworks. Extensibility Plugins and scripting.
18. Podification
19. Methodology Bottom Up Start at the leaves. Start Small Smaller apps with fewer dependencies. Tests Transition test targets to consume pods first. Tests@2x Use tests for validation of generated podspecs.
20. Challenges Partial Podification Making Vessel and CocoaPods work together. Code Generation Protocol buffer bindings. Concurrent Development Developing a pod alongside a consumer.
21. REGISTER CASH CAVIAR CUSTOMER DISPLAY INTERNAL
22. Future Faster Builds Caching build artifacts from for use as binary pods. Plugins Podfile.local replacement.
23. bp@squareup.com @brianpartridge