Summary:
This diff cleans up some cruft and adds some features:
* It removes the usage of an env variable to control workers.
* It removes the lazy and handwavy calculation on how many workers to use for jest-haste-map. Jest itself uses the maximum amount of workers available and it has never been reported as an issue – especially since it is a one-time startup cost of about 3 seconds on a cold cache only.
* It adds a `--max-workers` flag to replace the env variable. This one is able to control both the number of workers for `jest-haste-map` as well as the transformers.
* It makes the transformers run in the parent process if 1 or fewer workers are are specified. This should help with debugging.
Once you approve this diff, I will publish a new version of metro to npm and update the version used in RN and remove the use of the env variable altogether: https://our.intern.facebook.com/intern/biggrep/?corpus=xplat&filename=&case=false&view=default&extre=&s=REACT_NATIVE_MAX_WORKERS&engine=apr_strmatch&context=false&filter[uninteresting]=false&filter[intern]=false&filter[test]=false&grep_regex=
Note: the process of adding a CLI option is really broken. Commander also has a weird API. We should consider building a better public API for Metro and then consider how to build a new CLI on top of it and simplify our internal integration. I really don't like how Metro is integrated across pieces of the RN cli in ways that is hard to manage. But that is a larger task for another time :)
Reviewed By: jeanlauliac
Differential Revision: D5217726
fbshipit-source-id: 74efddbb87755a9e744c816fbc62efa21f6a79bf
Summary:
This changeset moves the creation of the transform cache at the top-level of the bundler so that:
* we can use alternative folders, such as the project path itself, that I think will be more robust especially for OSS;
* we can disable the cache completely, that is useful in some cases (for example, the script that fills the global cache).
The reasons I believe a local project path is more robust are:
* there are less likely conflicts between different users and different projects on a single machine;
* the cache is de facto cleaned up if you clone a fresh copy of a project, something I think is desirable;
* some people have been reporting that `tmpDir` just returns nothing;
* finally, it prevents another user from writing malicious transformed code in the cache into the shared temp dir—only people with write access to the project have write access to the cache, that is consistent.
Reviewed By: davidaurelio
Differential Revision: D5113121
fbshipit-source-id: 74392733a0be306a7119516d7905fc43cd8c778e
Summary: Adds support for “RAM bundle groups” (common section for module groups) to the new Buck integration
Reviewed By: jeanlauliac
Differential Revision: D5112065
fbshipit-source-id: 038c06b8f4133c7fcd39aba8bb04a5ef42594f3e
Summary:
Make all properties of `ModuleTraansportLike` covariant to enforce read-only behavior at all sites using it.
The type only exists for compatibility reasons between old and new output functionality, and covariant properties give us stronger guarantees.
Reviewed By: jeanlauliac
Differential Revision: D5111667
fbshipit-source-id: 674658b07eb3a229cbc4344cb636e4a9ea4126d1
Summary: Adds functionality to assemble an indexed source map to the new Buck integration. This implementation supports startup section optimisations. Hooking it up, and grouping optimisations will be in follow-ups.
Reviewed By: jeanlauliac
Differential Revision: D5106985
fbshipit-source-id: cc4c6ac8cfe4e718fc8bb2a8a93cb88914c92e0b
Summary: Adds flow to `local-cli/bundle/output/meta.js`, and makes some changes to avoid errors.
Reviewed By: cpojer
Differential Revision: D5077563
fbshipit-source-id: bafb9e6705319f6f2e8ae1c820667ad343191b3c
Summary: `transformModulePath` used to be an optional string, because `ConfigT` allowed for an optional `getTransformModulePath` method. Effectively, we required it to be present. This builds on top of the cleanups around `ConfigT` and gets rid of the flow error suppressions
Reviewed By: jeanlauliac
Differential Revision: D5037466
fbshipit-source-id: bc5c9cbc566e7aa74e7f6397e69fa87cdac7bc00
Summary:
Splits `ConfigT` into `ConfigT` (core + packager configuration) and `RNConfig` (RN CLI configuration).
Also guarantees that all values on `ConfigT` have a default when loading user configuration.
Reviewed By: jeanlauliac
Differential Revision: D4985965
fbshipit-source-id: bf036e22d6809e49746a9c3aa240ec403a085342
Summary: deduplicates / unifies types for source maps across the code base
Reviewed By: jeanlauliac
Differential Revision: D4955924
fbshipit-source-id: 25cb71031dce835dd7d2bc1c27d6b20050906e81
Summary: The problem with `bundleOpts` is that it discards Flow typing, so it prevents reinforcing the integration of `Bundler` into `Server`. This changeset removes the `bundleOpts` to solve that issues. Instead, it makes the options explicit so that there is less uncertaintly. I love making options explicit, because they force callsites to take a consicious decision about what is really needed, making them more robust. They also expose oddities that probably needs refatoring, for example having a `resolutionRequest` in the bundle options does not seem correct, it should be an implementation details. Likewise, `onProgress` should probably be exposed differently, as it does not affect the content of the bundle itself.
Reviewed By: davidaurelio
Differential Revision: D4697729
fbshipit-source-id: d543870ba024e7588c10b101fa51429c77cc5ddc
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
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:
This is step one on merging the `rnpm` config with the `cli config`. The plan is to remove two sources of truth (rnpm package.json config and rn-cli Javascript config)
Rationale:
As of now, we have `rnpm` config, that used to live in the `local-cli/core/config/index.js` and the `rn-cli` config, living in `default.config.js` and `utils/Config.js`.
This PR moves all the things into one file, called `local-cli/core', simplifies things, enhances types (Config now has better types, added missing properties and fixed descriptions).
One notable addition is that users can now opt-in to override the commands that are loaded at the package level. Previously it was only possible to add a command by writing a plugin. Now, you can just tweak the `rn-cli.config.js`.
This is one of the several improvements I have on my roadmap, with better documentation for the CLI as well.
Closes https://github.com/facebook/react-native/pull/11564
Differential Revision: D4360095
fbshipit-source-id: feaec7c88df63e51cef1f9620c7eedeb738d3d00
Summary:
This module is not actually used inside of React Native. Projects that use this,
can now depend on https://www.npmjs.com/package/signedsource
Reviewed By: yungsters
Differential Revision: D4272511
fbshipit-source-id: 93eb74aa4ccfa8ef8743de2cfa92b5403de91e0a
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:
Thanks for submitting a pull request! Please provide enough information so that others can review your pull request:
> **Unless you are a React Native release maintainer and cherry-picking an *existing* commit into a current release, ensure your pull request is targeting the `master` React Native branch.**
Explain the **motivation** for making this change. What existing problem does the pull request solve?
Warning about new Buffer when init
Prefer **small pull requests**. These are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it.
**Test plan (required)**
Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes UI.
Make sure tests pass on both Travis and Circle CI.
**Code formatting**
Look around. Match the style of the rest of the codebase. See also the simple [style guide](https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#s
Closes https://github.com/facebook/react-native/pull/11153
Differential Revision: D4234591
fbshipit-source-id: a9373f3151de8a50c18342f45fb9684a5c7416a6
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: 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: Switch to native promises in the local cli
Reviewed By: davidaurelio
Differential Revision: D4213142
fbshipit-source-id: aff99f8bb3dc237cecc852cdb09dee9b49b05753
Summary: This adds a new flag to the `unbundle` command: `--indexed-unbundle` allows to output the indexed file format even when building for android.
Reviewed By: cpojer
Differential Revision: D4189485
fbshipit-source-id: e56192456de764eb38c25b574ceaaf52eb8a6fca
James Burnett
Christoph Pojer
Jean Lauliac
David Aurelio
Gabe Levi
Ashok Menon
Max Sherman
Bhuwan Khattar
Alex Kotliarskyi
Andrew Imm
Jing Chen
Mike Grabowski
Chris Hopman
Jeff Morrison
Jan Kassens
Tim Yung
yicheng
Ovidiu Viorel Iepure