iOSDevTH #21

Transcript

2. Bazel for iOS 101
3. What is Bazel 🥯 • Open source build system from Google • Internally, called blaze
4. What is Build System Source code Source code Source code Source code Source code Build System Compiler Linker Binary
5. XCBuild Source code Source code Source code Source code Source code XCBuild Compiler Linker Binary
6. Foo.swift Baz.swift Bar.swift ⌘ + R Target MyApp MyApp scheme Target Foo Target Bar Target Baz
7. ⌘ + R MyApp Foo Bar Compiling Linking Copy f iles Codesigning Framework
8. ⌘ + R Task D Task B Task C Task A Input Output
9. Cons of XCBuild Disclaimer: based on my experience
10. Why? • Single artifacts directory per project • Switching git branch back and forth => caches invalidated 🫠 • 1 layer of cache
11. Bazel advantages • Advanced local cache & remote cache • Optimized dependency analysis • Parallel execution
12. Bazel dependencies Task D Task B Task C Task A Input Output
13. Who use Bazel? uncon f irmed
14. Bazel rules • Starlark language • python dialect
15. How about Swift? • swift_library() • apple_resource_group() • ios_application()
16. Demo
20. LD IPA IDE XCBuild Compiler Linker Executable
21. LD IPA IDE Bazel Compiler Linker Executable
22. Xcode project generation Tulsi rules_xcodeproj
23. Tulsi
24. rules_xcodeproj
25. Bazel cache
26. Build Event Service (BES)
27. Remote Execution
28. When should I use Bazel Task Task Task Task Input Output Task Task Task Task Task Task Task Task Task
29. When should I use Bazel Task Task Task Task Input Output Task Task Task Task Task Task Task Task Task
30. Not convinced? • XCLogParser • XCMetrics • XCRemoteCache
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