Slow build process due to static analyzer

[oNaiPs]

Description

When building either for Debug or Release configurations, static analyzer also runs making the builds run for much longer.
This xcode flag makes React source files to be compiled twice, which doubles build time (if you don't have any native code in the project).

Reproduction

1. Create a project with react-native init myproject
2. Build the project
   3 . Observe Analyzing files when building.

Solution

Analyze During 'Build' xcode configuration should be off.

Additional Information

• React Native version: 0.38
• Platform: iOS
• Operating System: MacOS

[mkonicek]

There's an alternative: use react-native run-ios from the command line if you only write JS. That way Xcode is not running and no code is being analyzed.

[oNaiPs]

@mkonicek I don't only write JS (our codebase has over 30 source files and counting).
I'm making a case for it because if you put this into CI you have a couple minutes overhead for nothing.

Is there any use case for the developers doing the Analyze of react source code files? It seems to me it would only be interesting for people modifying the SDK.

[gastonmorixe]

I added this in package.json to stop static analyzer

  "scripts": {
   ...
    "postinstall": "sed -i '' '/RUN_CLANG_STATIC_ANALYZER/d;/CLANG_STATIC_ANALYZER_MODE/d;/CLANG_ANALYZER_NONNULL/d' ./node_modules/react-native/React/React.xcodeproj/project.pbxproj"
  }

[oNaiPs]

@gastonmorixe thanks for your input. I ended up doing something similar 👍