Summary: It seems we don't need that one much anymore, as we have a FS-based cache for files, and removing the last callsites doesn't really change perf, as we have to read these files eventually (plus some of these are read from `HasteMap`, that I believe is already dead code).
Reviewed By: davidaurelio
Differential Revision: D4884220
fbshipit-source-id: 4cf59f16a6f0bdf275abe81e9de2f34816866bae
Summary:
Note: if this changeset causes some breakage, consider disabling rather than reverting. To disable, the call to `_preprocessPotentialDependencies` in `ResolutionRequest` can be removed.
It's a bit of an experiment. I couldn't see any particular regression caused by this, but I could see net improvement of the global cache performance, as it unlock much, much stronger batching: indeed, instead of discovering dependencies progressively, we synchronously figure out the list of all potential modules of a bundle, and kick-off cache fetching and/or transformations. So when it comes to fetching from the global cache, it'll do less requests, and each requests will ask for considerably more keys at a time.
Potential problem caused by this changeset: if a module's dependencies completely changed, then the first time we try to build the bundle it'll start transforming modules that we probably don't care at all anymore, spending precious CPU time for nothing. I've been thinking about it and I cannot see such a case happening much often. Even if it happens, it should not cause any bug or corruption, it would just take additional time.
Other potential problem: that this new code doesn't handle some types of edge cases. It's quite hard to figure out what could possibly break in the `ResolutionRequest` code (and I think it would benefit from a larger refactor). We do have a good test coverage for `DependencyGraph` and it seems to work smoothly, so I'm relatively confident we're not breaking edge cases.
Reviewed By: davidaurelio
Differential Revision: D4875467
fbshipit-source-id: 2dfcc755bec638d3d1c47862ec1de5220953e812
Summary: The original code wasn't very readable. Better with this change, I think.
Reviewed By: davidaurelio
Differential Revision: D4851335
fbshipit-source-id: 210309d4b727aff58bea48d0ab324256234cd941
Summary:
One of my changeset broke the "ModuleGraph" code without warning earlier because we are using `any`, that equivalent to having no typing at all. This changeset fixes the types so that `ResolutionRequest` is exactly what it actually is: a class usable for any `Module`-looking class, including the normal one, and the "ModuleGraph" one used for Buck builds. That way, the ModuleGraph's `Module` is typechecked against `Moduleish`.
Concretely this change mostly migrates the `Module` to its generic parameter counterpart `TModule` inside `ResolutionRequest`.
Reviewed By: kentaromiura
Differential Revision: D4826256
fbshipit-source-id: fcd7ca08ac6c35e4e9ca983e2aab260e352bcb4e
Summary: We want any exception thrown by `_getHasteName` to be captured by the promise instead of breaking the outer stack.
Reviewed By: davidaurelio
Differential Revision: D4754825
fbshipit-source-id: 173c7c8867da73efb198ed3159704d6fd0e7b87d
Summary:
Similar to https://github.com/facebook/jest/pull/2877, this introduces an optional config `HasteImpl` of type `{getHasteName(filePath: string): (string|void)}` that returns the haste name for a module at filePath if it is a haste module or undefined otherwise.
This allows us to inject a custom implementation of haste's module id resolution rather than only relying on `providesModule` annotations
Reviewed By: davidaurelio
Differential Revision: D4589372
fbshipit-source-id: 4d1983dfbf09c9d67faf725e86ae86ab42433b7d
Summary:
This moves the `src` directory one level up and removes the `react-packager` folder. Personally, I always disliked this indirection. I'm reorganizing some things in RNP, so this seems to make sense.
Not sure if I forgot to update any paths. Can anyone advice if there are more places that need change?
Reviewed By: jeanlauliac
Differential Revision: D4487867
fbshipit-source-id: d63f9c79d6238300df9632d2e6a4e6a4196d5ccb
Jean Lauliac
Bhuwan Khattar
Christoph Pojer