Summary:
This kills fastfs in favor of Jest's hasteFS. It gets rid of a ton of code, including the mocking code in ResolutionRequest which we don't need any more. Next step after this is to rewrite HasteMap, ModuleCache, Module/Package. We are getting closer to a nicer and faster world! :)
Here is what I did:
* Use Jest's HasteFS instead of fastfs. A fresh instance is received every time something changes on the FS.
* HasteFS is not shared with everything any more. Only one reference is kept in DependencyGraph and there are a few smaller functions that are passed around (getClosestPackage and dirExists). Note: `dirExists` now does fs access instead of an offline check. This sucks but stat calls aren't slow and aren't going to be a bottleneck in ResolutionRequest, I promise! When it is time to tackle a ResolutionRequest rewrite with jest-resolve, this will go away. "It gets worse before it gets better" :) The ModuleGraph equivalent does *not* do fs access and retains the previous way of doing things because we shouldn't do online fs access there.
* Add flow annotations to ResolutionRequest. This required a few tiny hacks for now because of ModuleGraph's duck typing. I'll get rid of this soon.
* Updated ModuleGraph to work with the new code, also created a mock HasteFS instance there.
* I fixed a few tiny mock issues for `fs` to make the tests work; I had to add one tiny little internal update to `dgraph._hasteFS._files` because the file watching in the tests isn't real. It is instrumented through some function calls, therefore the hasteFS instance doesn't get automatically updated. One way to solve this is to add `JestHasteMap.emit('change', …)` for testing but I didn't want to cut a Jest release just for that. #movefast
(Note: I will likely land this in 1.5 weeks from now after my vacation and I have yet to fully test all the product flows. Please give me feedback so I can make sure this is solid!)
Reviewed By: davidaurelio
Differential Revision: D4204082
fbshipit-source-id: d6dc9fcb77ac224df4554a59f0fce241c01b0512
Summary: Adds utilities needed for bundle creation: `completeModuleWrapper` appends numeric IDs for the module itself and its dependencies to a module wrapped. `createGetModuleId` returns a function that returns sequential numeric IDs for strings, and is idempotent.
Reviewed By: cpojer
Differential Revision: D4240334
fbshipit-source-id: c165482ebcf0e81ebb83ba6ff634de095ffb6bf0
Summary: When building, we will process modules in a special way, *not* polyfillys. We will also add more types of (virtual) files that are not modules. That’s why a “type” property makes more sense.
Reviewed By: cpojer
Differential Revision: D4244583
fbshipit-source-id: 92a0b4a0a2026d0b97ba88034483a6ce4e0c1ebb
Summary:
The logic in `ModuleGraph/Graph` allowed the callback to be invoked twice, if two invocations of `resolve` call back with errors asynchronously.
This fixes that problem by always calling `queue.kill()` on the asynchronous queue, and only invoke the main callback from the `drain` and `error` queue callbacks.
Reviewed By: jeanlauliac
Differential Revision: D4236797
fbshipit-source-id: c30da7bf7707e13b11270bb2c6117997fd35b029
Summary: For having a global cache, we need cache keys that are the same from different machines, so we cannot include user/machine-specific information. In that regard, I suggest we consider the paths relatively to the install directory of the React Native instead of being absolute, so that they are more chances they stay stables between different installations, users, machines.
Reviewed By: davidaurelio
Differential Revision: D4237840
fbshipit-source-id: d864b9739550ac2c95d5693db12bd1592411f80a
Summary: mtime is a problem for the global cache, because everyone has different times at which they rebased/cloned the repo. Use the actual content instead. Of course, the file could depend on other files we don't take into account... but the mtime solution was already problematic in that regard, so I assume this is a safe change.
Reviewed By: davidaurelio
Differential Revision: D4237826
fbshipit-source-id: 9dc18eb422cddd4d5ed097d1ebeef4b8c361ff39
Summary: Sets some options on `toLocaleString()` so that the server debug output's timestamps are shorter and have a consistent width (zero-padded).
Reviewed By: cpojer
Differential Revision: D4235074
fbshipit-source-id: 72dcf35ffd182eb70afc20d2b266314787433c4a
Summary:
When printing fields in the packager server debug output, this revision breaks the fields up onto multiple lines.
As it currently exists, the fields are printed immediately after the log entry label which can seem unnecessarily repetitive and unintuitive.
Reviewed By: davidaurelio
Differential Revision: D4235038
fbshipit-source-id: 2d59afa70c74f19afab221dfa58f437913c6dc2c
Summary:
Instead of exposing a `getTransformOptionsModulePath` function in configurations, we can simply expose a `getTransformOptions` *function*. The necessity of exposing a path comes from the olden days, where we had a server listening on a socket, and a client, talking to that server.
Since that architectural gem no longer exists, we can use functions directly, rather than passing paths to modules around.
Reviewed By: cpojer
Differential Revision: D4233551
fbshipit-source-id: ec1acef8e6495a2f1fd0911a5613c144e8ffd7c3
Summary:
instead of passing the `Bundler` instance, the transform options module now receives a `getDependencies()` function.
The idea is to make the contract stricter, to integrate more easily with the new `ModuleGraph` system.
Reviewed By: cpojer
Differential Revision: D4233529
fbshipit-source-id: 1c6d462c7dae1c61cbf45fd13989ce77f76e7384
Summary:
This removes support for `require('image!…')`, which has been deprecated for a long time.
It is still possible to use images that are already bundled by the native app using the `nativeImageSource` module.
Check http://facebook.github.io/react-native/docs/images.html for detailed documentation.
Reviewed By: matryoshcow
Differential Revision: D4231208
fbshipit-source-id: 05ec4c1ca0fabdc3fbb652f8ad1acdf240a67955
Summary:
Brings back parts of the programmatic API removed in 7762f374d50d3b1df8513c826862c2056e8718f9. This is used by a few people. Also updates the docs accordingly.
cc akaila
Reviewed By: jeanlauliac
Differential Revision: D4226348
fbshipit-source-id: e5c0794f9c5415f14b54d16c6f35f902eafc3064
Summary:
**Motivation**
In the context of a webview, one may extract assets (javascript or any types really), and relates to them through the html.
The packager `Server` serves this files correctly but also applies a cache based on time (a year). During development, this cache is actually bad as we need to re-iterate the process of editing/testing quickly.
I don't believe it is necessary to cache, and still wanted to make sure we would if process.env.NODE_ENV is 'production'.
**Test plan**
Run jest on impacted files:
```
node_modules/.bin/jest packager/react-packager/src/Server/__tests__/Server-test.js
```
Closes https://github.com/facebook/react-native/pull/10919
Differential Revision: D4226350
Pulled By: davidaurelio
fbshipit-source-id: d4bbff5b1a5b691aab197bcddb8fa9d2e43caa16
Summary: Adds flow types for output functionality for easier maintenance and interop with new code
Reviewed By: matryoshcow
Differential Revision: D4211863
fbshipit-source-id: 591407d3a6d49536054ae94ba31125c18a1e1fa1
Summary: Defer Logger calls to the next tick queue so as to avoid potential Logger errors from falling under the purview of Promise error handling, which would degrade development experience by "swallowing" legitimate runtime errors within rejected promises, to the infuriation of us all :D
Reviewed By: davidaurelio
Differential Revision: D4197869
fbshipit-source-id: 10a44904be1404ad2534d06ddc56048c1c24f32b
Summary: This fixes a piece of promise code that didn’t handle nested rejections. This caused the packager not to recover from transform errors, as the server was waiting for an in-limbo promise forever.
Reviewed By: cpojer
Differential Revision: D4207138
fbshipit-source-id: 8e94ddebd033073f90b79b1c4820c09ac98a4932
Summary: This adds unit tests for the new buck worker code, including a test for source map generation.
Reviewed By: cpojer
Differential Revision: D4193657
fbshipit-source-id: 06f7bfb5efa4f411178543a728ac7e42511caa3c
Summary: This adds flow types to new code written for the Buck/Packager integration.
Reviewed By: cpojer
Differential Revision: D4175156
fbshipit-source-id: 38c3d2c9176c7b3cf22b8baed7d445a75d033d04
Summary:
The current transform for require calls replaces strings with module-local IDs. That means that each module would need a local require function.
To save hundreds of closure allocations, we can just use an array that maps local IDs to global IDs.
This diff changes the dependency collection and replacement transform to change a call like `require('React')` to something like `require(_dependencyMap[0])` rather than `require(0)`.
Reviewed By: cpojer
Differential Revision: D4153714
fbshipit-source-id: a63455834c6c2a75da6977cacb9aac9f2cb1b3aa
Summary:
This is the next incremental step to rewrite node-haste. I apologize for the size of this diff but there is really no smaller way to do this. The current architecture passes a single file watcher instance into many classes that each subscribe to file changes. It's really hard to keep track of this. The new implementation reduces the listeners to two (will eventually be just one!) - one in DependencyGraph and one in it's parent's parent's parent (ugh! This doesn't make any sense). This should make it much more straightforward to understand what happens when a file changes.
I was able to remove a bunch of tests because jest's watcher takes care of things like ignore patterns. Some of the tests were specifically testing for whether the change events were invoked and they are now much more straightforward as well by manually invoking the `processFileChange` methods.
(Relanding a fixed version of D4161662)
Reviewed By: kentaromiura
Differential Revision: D4194378
fbshipit-source-id: 8c008247a911573f6b5f6b0b374d50d38f62a4f5
Summary:
This vars should be let instead of const because they are reassigned.
Closes https://github.com/facebook/react-native/pull/10818
Differential Revision: D4179219
Pulled By: javache
fbshipit-source-id: b09959c5ff31ad1a896d454011dffd915a0a44c4
Summary:
Solving this issue https://github.com/facebook/react-native/issues/10364
In development when assets are requested from AssetServer, it tries to find them with URI-friendly filenames. I added a single line to decode these filenames.
Tests are passing. Couldn't find any discussion regarding whether this is a good idea. This was causing some members of my team a bit of grief earlier.
Closes https://github.com/facebook/react-native/pull/10365
Differential Revision: D4168401
Pulled By: hramos
fbshipit-source-id: 9ed3606392d8a6f170998caaf0f9254ba4879b49
Jean Lauliac
Christoph Pojer
David Aurelio
Tim Yung
Gabe Levi
Pieter De Baets
penx
Ovidiu Viorel Iepure
alex
Martin Konicek
Andres Suarez
Martin Hernan Giachetti
Konstantin Raev
Alexander Paterson