Summary:
By default, when Babel transforms a file, it looks for .babelrc in the file's directory and all parent directories until it finds a .babelrc file. This means that when Metro tries to transform `<PROJECT_ROOT>/node_modules/dep/mod.js`, it searches for `<PROJECT_ROOT>/node_modules/dep/.babelrc`. If that .babelrc actually exists, Babel will try to apply it.
In practice, this often causes problems because packages that include .babelrc often do so unintentionally -- they don't intend for the package consumer to look at that .babelrc file. One thing we've done a lot is `rm` all .babelrc files under node_modules -- this commit effectively achieves the same in a less destructive way by telling Babel not to look up .babelrc files. (To clarify, Metro will still apply the .babelrc file in the project root.)
Since the current behavior is to look at .babelrc files, this commit keeps that behavior for now. We'll consider overriding the default behavior (that is, making Babel not lookup .babelrc files) in the default configuration of Expo/RN projects. If this goes well and we empirically find that people are having a better time, we may want to consider flipping this option's default in Metro, so that Metro tells Babel not to look up .babelrc files by default.
Closes https://github.com/facebook/metro-bundler/pull/31
Differential Revision: D5469620
Pulled By: jeanlauliac
fbshipit-source-id: fe7a1042feafff843e1a6d8cc9487eb6ff8e8358
Summary:
The main goal of this is to be able to show bundle download progress in a follow up PR for react-native.
**Test plan**
Tested that it is possible to show bundle download progress in react-native using this header and added unit test.
Closes https://github.com/facebook/metro-bundler/pull/28
Reviewed By: davidaurelio
Differential Revision: D5443344
Pulled By: jeanlauliac
fbshipit-source-id: 63fd655c964d7df526125fbe55eb9c7cccd7dba9
Summary:
Adding a Babel plugin that will analyze the file looking for any potential candidate to use `regenerator-runtime`, and if so, will inject dynamically the module. The module is injected per file, so we avoid polluting the global environment. The plugin is also able to inject the `require` call beforehand, so that the inliner can pick them and inline them.
The Babel plugin is part of `react-native-babel-preset`, so as long as you are using this preset you are safe. If not, you should include the specific transformer into your list of plugins, as `react-native-babel-preset/transforms/transform-regenerator-runtime-insertion.js`.
Reviewed By: davidaurelio
Differential Revision: D5388655
fbshipit-source-id: dc403f3d5e2d807529eb8569a85c45fec36a6a3e
Summary:
I corrupted the yarn.lock when trying to downgrade that module. This change brings the correct resolution in the `yarn.lock`.
Closes https://github.com/facebook/metro-bundler/pull/29
Differential Revision: D5452305
Pulled By: jeanlauliac
fbshipit-source-id: 54026cfd9cf269e2b432dd92f16bd6db9fa4603c
Summary: Downgrade the locked version of Babel block scoping, kinda temporarily until we upgrade internally. This makes in on par with the version we use internally, so that the `basic_bundle` test had the same results on both infrastructures. This doesn't change a single thing for `metro-bundler` consumers, because this `yarn.lock` file is only used for testing/CI, not when the library is installed as part of a project.
Reviewed By: cpojer
Differential Revision: D5442368
fbshipit-source-id: f3033e450855f7d61ac775a46719d7b1743960c5
Summary: Now we have a nice specific error type for duplicates errors. This changeset have been commited before but was reverted as part of a stack, so here we go again.
Reviewed By: cpojer
Differential Revision: D5442363
fbshipit-source-id: 068c8decaf20cd4f9a73d9d54984030c79cff606
Summary: I appears `Object.assign` is not properly typed-checked by Flow, and silently so, so I propose we switch to an explicit list until we find an alternative solution. I prefer to have strong typing especially for options, and as the lack of typing has caused breakage before.
Reviewed By: cpojer
Differential Revision: D5442319
fbshipit-source-id: 82b0ec760c7dea6da6f7932896243147ce12ebf9
Summary: I'd like to get rid of the function as blacklist, because it's impossible to process properly at the `jest-haste-map` level (https://github.com/facebook/jest/pull/4047). The reason we use a function in Metro bundler is because we excludes all the `__tests__` modules. However, I removed this exclusion completely, and I could build our package without any problem and with no difference in the final bundle. I can only assume, then, that this line is only here for slightly increasing performance. Therefore, I think it's reasonnable to move it as part of the default blacklist shipped with Metro bundler instead.
Reviewed By: cpojer
Differential Revision: D5434351
fbshipit-source-id: dea39f6299985143d25fcb3b7b365d793acd64a9
Summary: Now we have a nice specific error type for duplicates errors.
Reviewed By: cpojer
Differential Revision: D5433438
fbshipit-source-id: 47cad9ca6bf0bdec91a158ccb2807b6c5571966a
Summary: This put it on par with the version we use on other projects. This new version breaks assumptions about the way Promise/ticks/timers use to work, and I was not able to make it work properly synchronously. Since it's fragile anyway (because rely on Promise and feature internals), I propose the switch to async as done in this changeset. If `res.end` is not called, tests will just timeout instead.
Reviewed By: cpojer
Differential Revision: D5423823
fbshipit-source-id: 015e808a2cf2b8297a36b16feeb811a6e745a835
Summary: Going one step further, we can start working around the throwing version. To simply some code, I also piggybacked the addition of helper functions `resolvedAs` and `failedFor` in this changeset, hope it's okay. I can split if necessary.
Reviewed By: davidaurelio
Differential Revision: D5415196
fbshipit-source-id: 1bd5955b5733866af52fa873bcd1d9e4ce8215cf
Summary:
Adding a Babel plugin that will analyze the file looking for any potential candidate to use `regenerator-runtime`, and if so, will inject dynamically the module. The module is injected per file, so we avoid polluting the global environment. The plugin is also able to inject the `require` call beforehand, so that the inliner can pick them and inline them.
The Babel plugin is part of `react-native-babel-preset`, so as long as you are using this preset you are safe. If not, you should include the specific transformer into your list of plugins, as `react-native-babel-preset/transforms/transform-regenerator-runtime-insertion.js`.
Reviewed By: davidaurelio
Differential Revision: D5321193
fbshipit-source-id: fd4805b28c8a2b986842e23570a64003370d2067
Summary:
This fixes https://github.com/facebook/react-native/issues/14530 on my local repro. The reason the original problem appears is because when requiring the preset itself, what I think is a bug in babel-register kicks in and it starts transforming the presets themselves. That fails because these preset don't actually have the correct transforms plugins installed/specified in their `package.json` (they do it at prepublish time).
Closes https://github.com/facebook/metro-bundler/pull/21
Reviewed By: cpojer
Differential Revision: D5380795
Pulled By: jeanlauliac
fbshipit-source-id: 023fd6b36dc7ebd26961878edd71d423ea9856b5
Summary: Bump dependencies to the same version that react native uses
Reviewed By: jeanlauliac
Differential Revision: D5364009
fbshipit-source-id: 302db951a5509584da13a18a7fab6965e0b1e394
Summary:
It appears this is not needed to build or anything, only for metro-bundler itself.
Closes https://github.com/facebook/metro-bundler/issues/20.
Reviewed By: cpojer
Differential Revision: D5370513
fbshipit-source-id: 563b5716ca9ab1b58fc7ae1f757efc61cf946168
Summary: Restores the ability to write the expected header for indexed RAM bundles by avoiding to stringify buffers as utf8. Some minor cleanups included
Reviewed By: javache
Differential Revision: D5351839
fbshipit-source-id: 056661b064336ff74571b9f44c16d709fc59145b
Summary:
Remove our internal docbloc module and use `jest-docblock` instead.
The development server is using `jest-haste-map` exclusively, which in turn relies on `jest-docblock`, which differs slightly from our own docblock module.
Depending on only one version greatly reduces the number of edge cases
Reviewed By: cpojer
Differential Revision: D5328472
fbshipit-source-id: 4a31d8159519e01a83fda04b76e8f14f0beb16af
Summary:
Trims doc block annotations. This mitigates problems with leading and trailing spaces in `providesModule` annotations.
This module doesn’t have tests, but it is exclusively used for `providesModule` annotations right now.
Reviewed By: mjesun
Differential Revision: D5319814
fbshipit-source-id: de55df5b4b199738f9b01151eb86f3c863485b15
Summary:
Node v4 support has been broken for some time, with CircleCI failing tests. That's because it needs an additional transform for the spread operator in call position. Ex `foo(...smth)` expanding to `foo.apply(null, smth)`. Also, the build script was using syntax not supported by Node v4.
This changeset fixes the build script, and adds the missing transform. This will be used both for jest test and for the produced production output. This is needed for prod output since we want it to be able to be ran on Node v4 out-of-the-box.
CircleCI will confirm these changes work properly on all supported versions of Node.
Closes https://github.com/facebook/metro-bundler/pull/16
Differential Revision: D5319746
Pulled By: davidaurelio
fbshipit-source-id: 6c001b562b43da0625d1ac15d018117524970431
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: Given a file `test.android.png`, this allows it to be found as `test.android` for arbitrary platforms.
Reviewed By: bestander
Differential Revision: D5305807
fbshipit-source-id: d869a1da0cc502f853314790385734897f269d6a
James Ide
Jean Lauliac
Janic Duplessis
Miguel Jimenez Esun
Mehdi Mulani
Christoph Nakazawa
David Aurelio
Christopher Chedeau
Chris Blappert