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   Rob Napier (cocoaphony@mastodon.social)'s status on Wednesday, 07-Jun-2023 10:52:15 JST Rob Napier

   in reply to

   It looks like "Extract App Intents metadata" is happening in Xcode 15 even if you don't link the AppIntents framework. This can add significant time to every build, including incremental builds (in our project, ~70s). FB12246243

   The build setting LM_ENABLE_LINK_GENERATION=NO disables App Intent extraction entirely. I don't believe this is documented anywhere; I reverse engineered it from Xcode.

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     Rob Napier (cocoaphony@mastodon.social)'s status on Wednesday, 07-Jun-2023 10:52:16 JST Rob Napier

     I was really hoping that Xcode 15 would include some incremental build performance improvements, but I'm not seeing any so far. SWIFT_USE_INTEGRATED_DRIVER=NO is still 2-3 times faster. ~20s to recompile a one-line change, which isn't great, but it's workable. With the integrated driver, it's about 1m for every build, not counting getting it onto the sim/device, etc.

     Worse, AppIntents extraction is now more aggressive, and adds an extra 70s even if AppIntents is not linked. FB12215849

     Paul Cantrell repeated this.