Summary:
This is the first step to make transformers fully customizable (and not be tied to JS, or RN). In order to do that, I'm changing the signature of the transformers, which currently is:
```
function transformCode(
filename: string,
localPath: LocalPath,
transformerPath: string,
options: WorkerOptions,
assetExts: $ReadOnlyArray<string>,
assetRegistryPath: string,
minifierPath: string,
asyncRequireModulePath: string,
dynamicDepsInPackages: DynamicRequiresBehavior,
)
```
to be:
```
async function transformCode(
filename: string,
localPath: LocalPath,
options: WorkerOptions,
)
```
(so basically, all the RN-custom properties are moved to `WorkerOptions`, which in the future will be a generic to allow anybody pass any random option to their transformers).
In order to make all this work, I've had to get rid of the logic that calculates the base cache key hash based on a subset of worker options (the ones that Metro knows that are not going to change between runs).
This could potentially cause a perf regression (since we're now making the hash calculation a bit more costly), and in fact I could measure a ~400ms regression on the worse case scenario (which happens when restarting Metro and re-transforming a Wilde from a warm local cache).
I've benchmarked this regression and could find that it's caused by the array of `assetExtensions` (which is potentially large). I have a followup diff to improve this, which is able to remove the regression completely.
Reviewed By: pvdz
Differential Revision: D8695766
fbshipit-source-id: eccd18a4cbc91854f34d5c9ba7f95088f19483a1
Summary: Adds missing comma, following up on https://github.com/facebook/react-native/pull/20178. Thanks to LinusU for pointing out the error.
Reviewed By: TheSavior
Differential Revision: D9242887
fbshipit-source-id: 4b547396722d0e37dc5c8eb3439b9a441c3c0ac2
Summary:
Upgrade Babel from beta.40 to beta.47
There are two important breaking changes here.
- If you want an AST from the Babel `transform` functions you must pass on `ast:true` in the options.
- The `sourceType` is now the only source of truth on whether to parse with the Script or Module goal. It defaults to `script` and can also be `module` or `unambiguous`. In the `unambiguous` case it will first try to parse with the Module goal and only if it crashes it will try again with the Script goal.
Beyond that there were some fixes and some smaller changes that may affect you. See the Babel changelogs for details (https://github.com/babel/babel/tags).
Also updated the way we generate the babel helpers file.
Reviewed By: rubennorte
Differential Revision: D8075280
fbshipit-source-id: 2bb902690e8a4b19d9cada2b7b0c94812b3d4f0f
Summary: Moves the implementation of Buck’s worker protocol into its own package and babelRegisterOnly for better reusability.
Reviewed By: rafeca
Differential Revision: D7666896
fbshipit-source-id: ae297494ced3b8dd1f9d90983a640643d6ce7896
Summary:
The `sourceType` option is a new mandatory option for Babel which determines whether to parse the file with the module or script goal. The value "disambiguous" determines this state by parsing.
See https://github.com/babel/babel/pull/7417
Reviewed By: mjesun
Differential Revision: D7685610
fbshipit-source-id: 3958c5ad396592bb1d790e2df4ce315737421a2f
Summary:
This should (at least partially) fix testing for OSS as per f8d6b97140 (r28647044)
Might be related to not locking down the Babel version, will do that in a different commit.
Reviewed By: mjesun
Differential Revision: D7685279
fbshipit-source-id: f00febfad2cec31b7e11996ee8efa2c96b44477b
Summary: Fix the path lookup for files to be considered to run in nodejs.
Reviewed By: mjesun
Differential Revision: D7685278
fbshipit-source-id: c921d40b60d795820448842aec464e7ff82b6eab
Summary:
Just removing a comment
As per f8d6b97140 (r28569388)
While the comment was more to notify about this in general, I suppose it doesn't matter.
Reviewed By: rafeca
Differential Revision: D7685277
fbshipit-source-id: 2d526aeccc2e89b42ae25cbce21af5fe96f1348d
Summary:
BREAKING CHANGE
This change upgrades the React Native build pipeline from Babel 6 to Babel 7
If you use a `.babelrc` then you'll need to update it to Babel 7 (note that some plugins are no longer relevant, some plugins are automatically upgraded, and some will need some manual love).
Note that you may also need to upgrade your dev env, tests etc, to make sure they work with Babel 7.
Reviewed By: mjesun
Differential Revision: D7591303
fbshipit-source-id: 29cef21f6466633a9c366d1f3c0d3cf874c714db
Summary:
BREAKING CHANGE
This change upgrades the React Native build pipeline from Babel 6 to Babel 7
If you use a `.babelrc` then you'll need to update it to Babel 7 (note that some plugins are no longer relevant, some plugins are automatically upgraded, and some will need some manual love).
Note that you may also need to upgrade your dev env, tests etc, to make sure they work with Babel 7.
Reviewed By: cpojer
Differential Revision: D7097279
fbshipit-source-id: 9fb204cae733174a1c155669b7c17ddb70f7aecc
Summary:
Add ignores for these requires, some of them mistakenly removed by da3424c929.
```
yarn flow
```
CircleCI should be green again.
Closes https://github.com/facebook/react-native/pull/18021
Differential Revision: D7025304
Pulled By: jeanlauliac
fbshipit-source-id: 731232093ae3ab39b3eff6fb2004ff4e7090d5ae
Summary:
Includes React Native and its dependencies Fresco, Metro, and Yoga. Excludes samples/examples/docs.
find: ^(?:( *)|( *(?:[\*~#]|::))( )? *)?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+?BSD[\s\S]+?(?:this source tree|the same directory)\.$
replace: $1$2$3Copyright (c) $4-present, Facebook, Inc.\n$2\n$1$2$3This source code is licensed under the MIT license found in the\n$1$2$3LICENSE file in the root directory of this source tree.
Reviewed By: TheSavior, yungsters
Differential Revision: D7007050
fbshipit-source-id: 37dd6bf0ffec0923bfc99c260bb330683f35553e
Summary:
**Summary**
Metro used to have support for "asset plugins", which allowed developers to specify arbitrary JS modules that could export a function for adding more fields to asset data objects. Some of this functionality was removed in the delta bundler work -- this PR adds it back.
**Test plan**
Made existing unit tests pass and added unit tests to test asset plugin behavior. Also tested E2E in a React Native project by adding `assetPlugin=/path/to/pluginModule` to a JS bundle URL and ensuring that the plugin ran.
Closes https://github.com/facebook/metro/pull/118
Differential Revision: D6711094
Pulled By: rafeca
fbshipit-source-id: f42c54cfd11bac5103194f85083084eef25fa3cd
Summary: Upgrade metro-bundler to v0.9.0. This version has no functional change. The only change is that the structure of the npm package reflects the structure of the source code.
Reviewed By: bestander
Differential Revision: D5315651
fbshipit-source-id: 3a69337106d4ccf708823c80d304941973360e8e
Summary:
`retainLines` is no longer necessary with the much improved source map generation.
`sourceMaps` is handled by the transformer itself.
Reviewed By: cpojer
Differential Revision: D5237103
fbshipit-source-id: e5c6bf5aa9d553fce9c3f4d59b3ea0057d45cfdc
Summary: This folder is not necessary any longer. All the code now lives in https://github.com/facebook/metro-bundler
Reviewed By: davidaurelio, jeanlauliac
Differential Revision: D5199196
fbshipit-source-id: 35bf0f10a9163f53426db9a76f8f853dceb69167
Summary:
Pass `localPath` to transformers to allow usage of plugins like `transform-react-jsx-source` that don’t conflict with x-machine caches, e.g. Buck or our own global cache.
These caches don’t work properly if paths local to a specific machine are part of cached outputs.
Reviewed By: jeanlauliac
Differential Revision: D5044147
fbshipit-source-id: 1177afb48d6dd9351738fcd4da8f9f6357e25e81
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
Rafael Oleza
Kohei TAKATA
Héctor Ramos
Umair Ansari
Peter van der Zee
Eli White
David Aurelio
Matt Mahoney
Jean Lauliac
Caleb Meredith
Sophie Alpert
James Ide
Christoph Nakazawa
Marshall Roch
Cristian Carlesso