Summary: Sets `generateSourceMaps` to true when requesting a bundle in non-dev mode or minified.
Reviewed By: bestander, cpojer
Differential Revision: D4415492
fbshipit-source-id: 9b4dcbd577a535dab143bb7a067210fbd831bf1a
Summary:
Introduces a new mechanism to build source maps that allows us to use real mapping segments instead of just mapping line-by-line.
This mechanism is only used when building development bundles to improve the debugging experience in Chrome.
The new mechanism takes advantage of a new feature in babel-generator that exposes raw mapping objects. These raw mapping objects are converted to arrays with 2, 4, or 5 for the most compact representation possible.
We no longer generate a source map for the bundle that maps each line to itself in conjunction with configuring babel generator to retain lines.
Instead, we create a source map with a large mappings object produced from the mappings of each individual file in conjunction with a “carry over” – the number of preceding lines in the bundle.
The implementation makes a couple of assumptions that hold true for babel transform results, e.g. mappings being in the order of the generated code, and that a block of mappings always belongs to the same source file. In addition, the implementation avoids allocation of objects and strings at all costs. All calculations are purely numeric, and base64 vlq produces numeric ascii character codes. These are written to a preallocated buffer objects, which is turned to a string only at the end of the building process. This implementation is ~5x faster than using the source-map library.
In addition to providing development source maps that work better, we can now also produce individual high-quality source maps for production builds and combine them to an “index source map”. This approach is unfeasable for development source maps, because index source map consistently crash Chrome.
Better production source maps are useful to get precise information about source location and symbol names when symbolicating stack traces from crashes in production.
Reviewed By: jeanlauliac
Differential Revision: D4382290
fbshipit-source-id: 365a176fa142729d0a4cef43edeb81084361e54d
Summary: Remove the validateOpts() that prevents full Flow typing. In turn, having full Flow typing will allow us to remove 'defaults' across the codebase, that are source of inconsistencies.
Reviewed By: davidaurelio, cpojer
Differential Revision: D4377823
fbshipit-source-id: 8bb0a6b5069de64a9bb9d63892cd08854da91777
Summary:
Let's continue to bring Flow goodness to the codebase, as it will facilitate future refactorings.
I fixed a few of the typing issues by changing the local logic at times, but in a way that should not cause any difference globally.
Reviewed By: cpojer
Differential Revision: D4265347
fbshipit-source-id: a2a7afd7d93cf00ba58e8c9879a9bb6d5bf30358
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:
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:
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:
**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: 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 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: Use native Promises in React Native Packager. Remove all the non-standard `Promise.done()` calls throughout the codebase & replace `Promise.denodeify` with the stand-alone `denodeify` module.
Reviewed By: davidaurelio
Differential Revision: D4146965
fbshipit-source-id: 1730531c914863ac3c52626801d9f91c28eed717
Summary: In order to make `Config` and defaults available to our new code, I’ve added flow types and put default values into one shared modile
Reviewed By: cpojer
Differential Revision: D4044600
fbshipit-source-id: 875ed3ade69c5b22bb3c1b177e7bad732834d476
Summary: Update Activity API to allow adding more details to events for telemetry purposes.
Reviewed By: davidaurelio
Differential Revision: D3982691
fbshipit-source-id: 07f3ed5d1ec4eddbbdeb00feb02ea75e1168705e
Summary:
Context: I'm trying to add support for sending packager progress events to the client that is downloading the bundle over HTTP multipart response.
The idea is for the client to send `Accept: multipart/mixed` header, and if present the server will stream progress events to the client. This will ensure the change is backwards-compatible - the clients who don't know about progress events won't receive them.
In the future we can use this approach to download RAM bundle modules in one request.
Reviewed By: davidaurelio
Differential Revision: D3926984
fbshipit-source-id: 39a6e38e40a79f7a2f2cf40765a0655fb13b7918
Summary:
Context: I'm trying to add support for sending packager progress events to the client that is downloading the bundle over HTTP multipart response.
In order to do that I need the server to know about these events. Currently the bundler doesn't expose any hooks for monitoring the progress, so this diff introduces `onProgress` option for that.
Reviewed By: davidaurelio
Differential Revision: D3926806
fbshipit-source-id: b7d9c649df4f94ddf5082791209844610650325e
Summary: Modified `node-haste` implementation to use the much faster `jest-haste-map` under the hood. The underlying `fastfs` now gets passed the entire file list from the `jest-haste-map` rather than crawl the filesystem.
Reviewed By: cpojer
Differential Revision: D3724387
fbshipit-source-id: 447d58ea0edf283662ec23d1e2deee992cf8d240
Summary:
Adds a new URL option to the packager server called "assetPlugin". This can be a name of a Node module or multiple Node modules (`assetPlugin=module1&assetPlugin=module2`). Each plugin is loaded using `require()` and is expected to export a function. Each plugin function is invoked with an asset as the argument. The plugins may be async functions; the packager will properly wait for them to settle and will chain them.
A plugin may be used to add extra metadata to an asset. For example it may add an array of hashes for all of the files belonging to an asset, or it may add the duration of a sound clip asset.
Closes https://github.com/facebook/react-native/pull/9993
Differential Revision: D3895384
Pulled By: davidaurelio
fbshipit-source-id: 0afe24012fc54b6d18d9b2df5f5675d27ea58320
Summary:
Hi,
This PR fixes the problem described by chrisnojima in https://github.com/facebook/react-native/issues/9581#issuecomment-243766310
**Test plan**
In development mode,
- Run an app with an image: `<Image source={ require('./logo.png') }/>`
- Notice that you see the following in packager console:
```txt
6:46:42 PM] <START> processing asset request logo.png
[6:46:42 PM] <END> processing asset request logo.png (1ms)
```
- Reload the app, or navigate to another page of the app with the same image
- Notice that you see again:
```txt
6:47:23 PM] <START> processing asset request logo.png
[6:47:23 PM] <END> processing asset request logo.png (1ms)
```
Now wih the fix applied,
notice that you only see `logo.png` fetched once, even if you reload or show the same image in a different part of the app.
Let me know what you think.
Closes https://github.com/facebook/react-native/pull/9795
Differential Revision: D3876945
Pulled By: davidaurelio
fbshipit-source-id: f41f4719e87644692a690123fd6e54eead9cc87d
Summary: This makes the `hash` property of asset data depend on asset file contents rather than modification time of files. That means that bundles will be consistent across different checkouts.
Reviewed By: martinbigio
Differential Revision: D3856815
fbshipit-source-id: 8bfea4e0a714f48fc6a4ae5ed2a1426dc8d5868e
Summary:
When I use local static files as Image resources, it will occur a 404 error if the image file's name contains some non-latin letters.
The reason is that the request's url will be encoded if it contains some non-latin letters.
Closes https://github.com/facebook/react-native/pull/9604
Differential Revision: D3821328
Pulled By: javache
fbshipit-source-id: bfdc7f71517b5d4ba9e0a013979e5dcf6c31a237
Summary: Updating an existing bundle is now logged as a telemetric event.
Reviewed By: davidaurelio
Differential Revision: D3804754
fbshipit-source-id: adab3b054a161bd9535ad01d52573fb7bb177d43
Summary:
Revised the Activity implementation
- added flow annotations
- fixed some lint warnings
- added event `options`, specifically a `telemetric` option which indicates that events tagged in this manner are relevant for telemetry. The duration of these events is now highlighted in the Activity log
Reviewed By: bestander, kentaromiura
Differential Revision: D3770753
fbshipit-source-id: 6976535fd3bf5269c6263d825d657ab0805ecaad
Summary: If a bundle failed to build, a file change would trigger the *update bundle* path, without ever being able to resolve the bundle. If a bundle can't be updated, we evict it from the cache.
Reviewed By: cpojer
Differential Revision: D3726567
fbshipit-source-id: a342f00c5a41364551194c33082718e5483fd7a4
Summary:
This clears the packager server cache for potential changes of module resolutions.
We will make this a lot better in the future, but for now this crude mechanism will have to do.
Reviewed By: cpojer
Differential Revision: D3713143
fbshipit-source-id: 7c81f40e8ec71404c3369211b29f63928d6634b9
Summary:
This is a very hacky solution to make reloads from packager faster for simple file changes.
Simple means that no dependencies have changed, otherwise packager will abort the attempt to update and fall back to the usual rebuilding method.
In principle, this change avoids re-walking and analyzing the whole dependency tree, and just updates modules in existing bundles.
Reviewed By: bestander
Differential Revision: D3713704
fbshipit-source-id: ba182325c4f4003c0a7402ea87444a94c75ebaf8
Summary:
This is a very hacky solution to make reloads from packager faster for simple file changes.
Simple means that no dependencies have changed, otherwise packager will abort the attempt to update and fall back to the usual rebuilding method.
In principle, this change avoids re-walking and analyzing the whole dependency tree, and just updates modules in existing bundles.
Reviewed By: bestander
Differential Revision: D3703896
fbshipit-source-id: abc2a41144536baf969d346522a17044c1c9558b
Summary:
This is a very hacky solution to make reloads from packager faster for simple file changes.
Simple means that no dependencies have changed, otherwise packager will abort the attempt to update and fall back to the usual rebuilding method.
In principle, this change avoids re-walking and analyzing the whole dependency tree, and just updates modules in existing bundles.
Reviewed By: bestander
Differential Revision: D3703896
fbshipit-source-id: 671206618dc093965822aed7161e3a99db69a529
Jing Chen
Jean Lauliac
David Aurelio
Andrew Imm
Jeff Morrison
Christoph Pojer
alex
Ovidiu Viorel Iepure
Martin Konicek
Tim Yung
Andres Suarez
Pieter De Baets
Alex Kotliarskyi
James Ide
Cristian Carlesso
Jean Regisser
Charles Dick
wusuopu