Incremental doesn't rebuild when dependent package's type changed in a workspace/monorepo about typescript HOT 5 CLOSED

This is working as intended. ``--build only cares about time stamps of your project files or any references in tsconfig. packages/a does not reference package/b so there is no way of knowing changes in b should also be accounted for. (--build` does not account for failed resolutions/ files already compiled as part of your projects etc)

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I see. I guess the recommendation is to not use --build in this kind of set up, or specify cross package project references (which doesn't feel right)?

from typescript.

Also, doesn't the tsbuildinfo file has all the input and referenced files and hash, can that be used to detect if b.d.ts changed?

from typescript.

Two things play there: Not all projects will have tsbuildInfo .. its not mandatory if the project is not referenced. We have so far kept similar approach but have thought of doing extra in case of buildInfo but it involves checking modified time of more files and in repro where there are many projects with lots of d.ts files (that arent listed as files the project depends on explicitly) it adds up so this has been in backlog to experiment for a while and not guaranteed to change soon.

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This issue has been marked as "Not a Defect" and has seen no recent activity. It has been automatically closed for house-keeping purposes.

from typescript.