Commit Graph

190 Commits

Author SHA1 Message Date
Christoph Pojer deebf15a56 Move formatBanner into packager folder
Reviewed By: davidaurelio

Differential Revision: D4868954

fbshipit-source-id: 7a28019c781262bcf4aab0ad2e67868d35ebf9fb
2017-04-12 02:44:51 -07:00
Sai Grandhi 0fe0fc038b Make copy button work on android emulator in Linux using xsel
Summary:
Resolves issue [#13165](https://github.com/facebook/react-native/issues/13165). The copy button in the redbox for RN android is not currently supported for Linux. This pull request provides the copy button functionality to Linux RN users.

I have tested the updated code locally.
Firstly, I edited `index.android.js` that caused the following error.
![pasted image at 2017_03_27 10_21 am](https://cloud.githubusercontent.com/assets/22376429/24426834/f567c5dc-13d6-11e7-8e3b-a650e2f6237c.png)
After I clicked the copy button and pasted from the clipboard into the chrome address bar, the message appeared.
![pasted_image_at_2017_03_27_10_21_am](https://cloud.githubusercontent.com/assets/22376429/24426896/2c0d4d64-13d7-11e7-8650-da19c44b177d.png)
Closes https://github.com/facebook/react-native/pull/13188

Differential Revision: D4819796

Pulled By: ericvicenti

fbshipit-source-id: 9adc6e93330f89240a505a403e4913dc10e5a31f
2017-04-04 10:20:19 -07:00
Jean Lauliac 8755338728 packager: get rid of type `any` in ResolutionRequest
Summary:
One of my changeset broke the "ModuleGraph" code without warning earlier because we are using `any`, that equivalent to having no typing at all. This changeset fixes the types so that `ResolutionRequest` is exactly what it actually is: a class usable for any `Module`-looking class, including the normal one, and the "ModuleGraph" one used for Buck builds. That way, the ModuleGraph's `Module` is typechecked against `Moduleish`.

Concretely this change mostly migrates the `Module` to its generic parameter counterpart `TModule` inside `ResolutionRequest`.

Reviewed By: kentaromiura

Differential Revision: D4826256

fbshipit-source-id: fcd7ca08ac6c35e4e9ca983e2aab260e352bcb4e
2017-04-04 07:15:23 -07:00
Jhen d38644eee5 Add Atom Beta to launchEditor
Summary:
Support [the pre-release of Atom](https://github.com/atom/atom/releases/tag/v1.16.0-beta0) for launchEditor in RN packager.

Open the pre-release of Atom and use the following code: (use the built-in [openFileInEditor](292cc82d0e/Libraries/Core/Devtools/openFileInEditor.js) module)

```js
import openFileInEditor from 'openFileInEditor'

openFileInEditor(file, lineNumber)
```
Closes https://github.com/facebook/react-native/pull/13255

Differential Revision: D4819130

Pulled By: ericvicenti

fbshipit-source-id: eb542295ee9489dad0fe9084e51c4141d33f1fbf
2017-04-03 09:15:29 -07:00
Brent Vatne b80e2c8799 Move packager initialization events to reporter
Summary:
This PR depends on #13172

Packager events are mostly logged through the TerminalReporter by default (#13172 makes this configurable). But there are a few things that aren't passed through TerminalReporter.

- We [log a banner with some information about the port and what's going on](8c7b32d5f1/local-cli/server/server.js (L22-L32))
- Also [a message about looking for JS files](8c7b32d5f1/local-cli/server/server.js (L34-L38)) (not sure what that is for / if it is useful beyond telling the user what directory root they started the packager in, but that's another thing).
- If the packager fails to start, then [we log an error message](8c7b32d5f1/local-cli/server/server.js (L41-L61)).

This pull request changes those log messages to be handled by TerminalReporter. I tri
Closes https://github.com/facebook/react-native/pull/13209

Differential Revision: D4809759

Pulled By: davidaurelio

fbshipit-source-id: 2c427ec0c1accaf54bf6b2d1da882cd6bfaa7829
2017-03-31 02:17:22 -07:00
Brent Vatne 5f5da4e122 Add support for custom log reporter cli option for local server
Summary:
In Expo tools such as XDE, exp we listen listen to stdout from the packager process and print it in our own buffer. In the case of XDE, an electron app, our log pane is DOM-based, and before printing each log chunk we need to remove special tty characters and sometimes parse it to get information that we need (eg: progress bar). By using a custom reporter, we can take the raw events and pass them along in a format that is easy to consume by XDE and exp. This same motivation applies to create-react-native-app, where we currently don't show a progress bar in the terminal, but we can with this change.

Create `LogReporter.js` in the root of a project with the CLI changes included in this PR.

```
class LogReporter {
  update(event) {
    console.log(JSON.stringify(event));
  }
}

module.exports = LogReporter;
```

Now, run `react-native start --customLogReporterPath=LogReporter.js` -- all of the raw events will be output as JSON (while the logs
Closes https://github.com/facebook/react-native/pull/13172

Differential Revision: D4795760

Pulled By: hramos

fbshipit-source-id: 80164b2f30e33a3f9965f4865a8404f8640a52c1
2017-03-30 18:15:49 -07:00
Tim Yung 5643bbc11d RN: Add "Maintain Priority" Checkbox
Summary:
Adds a new checkbox to the Chrome Debugger page that prevents the tab from being deprioritized by Google Chrome.

This is accomplished by embedding an inaudible sound byte (in 10Hz range) that loops on a low volume.

Reviewed By: kassens

Differential Revision: D4786288

fbshipit-source-id: 949d96ed3c0eac92ad56cdd119418df9ec6d0846
2017-03-28 18:50:56 -07:00
Tim Yung 696b49e3b8 RN: Refactor Chrome Debugger JS
Summary:
Refactors JavaScript in the `debugger.html` used to operate the Chrome Debugger.

- Pull out all view-related logic into a global `Page` object.
- Persist the dark theme across debug sessions using `localStorage`.

Reviewed By: kassens

Differential Revision: D4786235

fbshipit-source-id: ab959d1c95465a10b4538b14d9c87a51ae3b7078
2017-03-28 18:50:56 -07:00
Yann Pringault 8a8f34ae10 Improve dark mode for debugger
Summary:
* Added a label so we can click on the text to toggle the dark mode
* Added `height: 100%` in the CSS to make the dark background fill the entire view
* Improving JS code with `classList.toggle()` instead of redundant `if else` and fragile `document.styleSheets` access
* Adjusted the link color in dark mode to be less flashy

![image](https://cloud.githubusercontent.com/assets/5436545/24155304/bb80bb9a-0e53-11e7-9298-ce2c1ec6672c.png)

![image](https://cloud.githubusercontent.com/assets/5436545/24155311/c27e85f8-0e53-11e7-87ae-0245f54870c5.png)
Closes https://github.com/facebook/react-native/pull/13052

Differential Revision: D4748893

fbshipit-source-id: a81266c52b24f8e5dcedf0b9f37134688342d8d2
2017-03-23 04:38:57 -07:00
Dan Abramov c451dd6cce Update message with instructions
Summary:
The middleware for automatically converting Systrace traces to HTML and popping the browser hasn't worked properly for a while, since the version on Homebrew generates some code that uses `Object.observe`, which was deleted from Chrome ages ago. People have complained about it, but fixing it properly has proven to be harder than expected, so I suggest we simply update the message with instructions for people to load it on Chrome, which is what all of us have been doing anyway (AFAIK).
Closes https://github.com/facebook/react-native/pull/12445

Reviewed By: javache

Differential Revision: D4700153

Pulled By: gaearon

fbshipit-source-id: 0c33099babed93b3c70d36ae9dfc7d82460c8269
2017-03-20 10:49:43 -07:00
Lukas Piatkowski 60142adc72 Extract PackagerConnectionSettings to ensure easier reusability of PackagerConnection module
Reviewed By: cwdick

Differential Revision: D4689535

fbshipit-source-id: f698837f407a03bf91521cc5e921c66f5755e6e0
2017-03-17 10:02:34 -07:00
Charles Dick af590b0c74 remove the old heap profiler visualization code
Differential Revision: D4650983

fbshipit-source-id: 1f791acdd3e2d96e7881ea037045fafa2c6d781a
2017-03-15 06:47:34 -07:00
Jean Lauliac 7098c450d8 packager: attachHMRServer.js: Flow
Summary:
The breakage fixed by changeset [1] could have been identified earlier if we had typing on `attachHMRServer`, so I spent some time on that. This has revealed in turn a few functions across the codebase that were incorrectly typed, and that are now fixed.

[1] packager: attachHMRServer.js: fix callsite of Server#getModuleForPath()

Reviewed By: davidaurelio

Differential Revision: D4706241

fbshipit-source-id: fc4285245921ae45d5781a47d626fc0559dba998
2017-03-15 06:20:48 -07:00
Jean Lauliac 4ac585b34b packager: attachHMRServer.js: fix callsite of Server#getModuleForPath()
Summary: In a previous changeset, Server#getModuleForPath() started returning `Promise<Module>` instead of `Module`, but the callsites in HMR haven't been updated, causing it to break. This would have been caught if `attachHMRServer.js` was using flow, that I'm considering doing in a following up diff. This would also have been caught if we had better integration testing of HMR. Good news however,it was caught by the OSS e2e test, that covers Hot Reloading.

Reviewed By: davidaurelio

Differential Revision: D4705937

fbshipit-source-id: fe787bc6ae50024759c7f7aeed747394fdce9aa1
2017-03-14 11:32:54 -07:00
Richard Evans 4471c32b08 CLI: Assign project root concat back to project roots.
Summary:
With the latest version of React Native I noted my setup with React Native Storybook stopped working because it stopped searching all the right project roots. I found that it had to do with the change here bce6ece5f6

**Test plan (required)**

Run the CLI with a project root other then the root directory and ensure that it displays both the specified project root and the actual root directory.
Closes https://github.com/facebook/react-native/pull/12659

Differential Revision: D4658137

Pulled By: ericvicenti

fbshipit-source-id: 97d3784348f92394df111f189c6b00dd0165b75e
2017-03-06 00:19:20 -08:00
Ke Mao 8bfab2c733 Improve command-line experience for capturing mobile JS heap
Reviewed By: cwdick

Differential Revision: D4612319

fbshipit-source-id: 607a09286abdd83368996ffc553b3ce984b62f34
2017-03-01 19:26:28 -08:00
Bhuwan Khattar 234f4f538d Introduce HasteImpl
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
2017-02-27 14:04:58 -08:00
Lukas Piatkowski a2addbd932 BREAKING: Change the js1 - packager - RN App protocol to version 2
Reviewed By: cwdick

Differential Revision: D4551991

fbshipit-source-id: 395c38ee5c71ddc24d8743e7ec90cc89de087503
2017-02-16 04:30:00 -08:00
Dan Abramov 934cd82941 Move DevTools integration into its own repo
Summary:
The way React DevTools integration was set up in RN was not entirely supported by the React team, and we had to disable it in c3b25c9059 so that we can move forward with enabling Fiber support in React Native.

Here, I am moving the DevTools client setup from RN repo to [React DevTools repo](https://github.com/facebook/react-devtools/blob/master/packages/react-devtools-core/README.md#requirereact-devtools-coreconnecttodevtoolsoptions) so that we can keep it in sync with the rest of React DevTools. This is also a part of a larger effort to consolidate DevTools code (https://github.com/facebook/react-devtools/issues/489). It allows us to remove the double injection of the hook, an lets us replace the `eval` hack with a regular dependency. The implementation [lives here now](https://github.com/facebook/react-devtools/blob/master/packages/react-devtools-core/src/backend.js).

This change re-enables Nuclide Inspector with React Native Stack reconciler and prepares it for compatibi
Closes https://github.com/facebook/react-native/pull/12316

Reviewed By: zertosh

Differential Revision: D4545322

Pulled By: gaearon

fbshipit-source-id: ab949916c1a92c6b41cd41e7e1edf9697a71de2e
2017-02-14 14:03:46 -08:00
Lukas Piatkowski d8f48d1b51 Refactor the packager server for further protocol changes
Reviewed By: cwdick

Differential Revision: D4543321

fbshipit-source-id: f7d5823b0d340f8ca17b3dd6caf4e158fa918bcf
2017-02-14 09:45:57 -08:00
Max Sherman a97f665629 Guard against small window where sending a message can crash the packager
Reviewed By: davidaurelio

Differential Revision: D4541015

fbshipit-source-id: 025039c593f7f0f6e40f5fd38ccc07e50f7d04b0
2017-02-10 09:30:08 -08:00
Mike Grabowski 2f5556df39 Remove build artifacts
Summary:
Ignores `bundle.js` that is a webpack bundle and got most likely accidentally released. Already cherry-picked to 0.42

Fixes #12183
Closes https://github.com/facebook/react-native/pull/12185

Differential Revision: D4507535

Pulled By: mkonicek

fbshipit-source-id: 2ab404534b345cf531f408b654c34a30abd01458
2017-02-03 06:58:35 -08:00
Christoph Pojer a2c84d14ce Remove `react-packager` indirection.
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
2017-02-02 05:44:15 -08:00
Pavlos Vinieratos 5e6f39aace allow for dark background in the debugger view
Summary:
I prefer a darker environment when coding, and having the Chrome window be dark except the part that I cannot hide, is making my eyes hurt. This is for the people that prefer the darker color scheme when developing.
Closes https://github.com/facebook/react-native/pull/11878

Differential Revision: D4494415

Pulled By: mkonicek

fbshipit-source-id: 423473ec073e6ddd0d14322c22ee37abed1c55bc
2017-02-02 04:43:51 -08:00
Charles Dick 76e3d45c34 Add cell size to JSC heap capture visualization
Reviewed By: bnham

Differential Revision: D4469000

fbshipit-source-id: 3e572bb7bdd83f79009d2059d543e03e6a57bba0
2017-02-01 10:58:30 -08:00
rh389 7a4166c31d Deal with 0.38 'FlowFixMe's
Summary:
Largely typing fixes to deal with the glut of new `FlowFixMe` suppressions introduced with flow 0.38 in a4bfac907e

Tested with flow itself. CC gabelevi
Closes https://github.com/facebook/react-native/pull/11985

Differential Revision: D4452045

Pulled By: ericvicenti

fbshipit-source-id: acc46c4c406ae706a679e396be1d40ae2f4ce5a1
2017-01-31 13:13:32 -08:00
Harshil Shah bce6ece5f6 Add symlinks under node_modules as part of projectRoots
Summary:
Support symlinks under `node_modules` for all local-cli commands. PR https://github.com/facebook/react-native/pull/9009 only adds symlink support to the packager.

But other cli commands like `react-native bundle` creates its own instance of packager that doesn't have symlinks as part of its project roots, which results in the bundler breaking since it cannot find modules that you have symlinked.

This change ensures all `local-cli` commands add symlinks to its project roots.

Test plan (required)

1.  Create a symlink in node_modules (for instance use npm/yarn link)
2. Run `react-native bundle`.
Closes https://github.com/facebook/react-native/pull/11810

Differential Revision: D4487741

fbshipit-source-id: 87fe44194134d086dca4eaca99ee5742d6eadb69
2017-01-31 03:43:39 -08:00
Ciprian Pãtru f9c6d47b94 Prevent "/inspector/json" to be repeatedly output to the console
Differential Revision: D4474847

fbshipit-source-id: d14fe55041b7c5c04b4c8e8fce282fd62d694492
2017-01-30 11:13:41 -08:00
Alex Kotliarskyi 8b4272b2fd Change favicon depending on the Chrome debugger state
Reviewed By: yungsters

Differential Revision: D4465694

fbshipit-source-id: fc740f176d6e1fe25dfc79c9ccd8a1ea2be35bb3
2017-01-26 11:58:32 -08:00
Charles Dick 936c62a265 JSC Heap Capture add other roots to visualization
Reviewed By: amnn

Differential Revision: D4422659

fbshipit-source-id: a32e87d2d39b6ff571f02d613b32db630e5e6de1
2017-01-26 03:28:31 -08:00
Lukas Piatkowski c5f862b913 The jscProfileMiddleware require some FB only modules, so moving to internal
Reviewed By: cwdick

Differential Revision: D4441898

fbshipit-source-id: 0ab5aa4158fccf190e76d3582a8a12d9b1d23fa8
2017-01-25 10:43:54 -08:00
Janic Duplessis 10a29aa954 Support copy to clipboard on Windows
Summary:
Also fix lint errors about Buffer being undefined by adding env: node to the eslint config for local-cli.

Tested on windows 10.
Closes https://github.com/facebook/react-native/pull/11959

Differential Revision: D4438903

Pulled By: hramos

fbshipit-source-id: 28d5edd662dd1e63dedf1274ff0a21af4df84f5e
2017-01-19 16:28:39 -08:00
Gabe Levi e2ce98b7c6 Fix the suppress comment regex for react_native
Reviewed By: davidaurelio

Differential Revision: D4435640

fbshipit-source-id: c680aee6931979859f04c0dca47037ba6f6cba73
2017-01-19 10:28:28 -08:00
Gabe Levi a4bfac907e Deploy v0.38.0
Reviewed By: jeffmo

Differential Revision: D4428858

fbshipit-source-id: 10dc69349a2b563e1fa444a8b0612e3b2d4ccd1c
2017-01-18 11:13:30 -08:00
Lukas Piatkowski bbd5750bb4 Sampling Profiler to return urls that open file in nuclide
Reviewed By: cwdick

Differential Revision: D4422768

fbshipit-source-id: 2e8c4af6e6fae4256fe886b79f5ea6c87986d581
2017-01-18 04:28:38 -08:00
Andrew Imm 09a83f976e Allow project-specific config for RN CLI using providesModuleNodeModules
Reviewed By: davidaurelio

Differential Revision: D4409046

fbshipit-source-id: 5af0d08542935a784f4737653ccac49fd7517aff
2017-01-12 21:13:36 -08:00
Jean Lauliac ff50420b0f packager: create the reporter higher in the stack
Reviewed By: davidaurelio

Differential Revision: D4392283

fbshipit-source-id: 4cd470ca0cbddcbb515407b5249272a758849b82
2017-01-09 10:13:33 -08:00
David Aurelio 78118d5023 Revamp debug logging
Summary:
- Switch namespace prefix from `ReactNativePackager:` to `RNP:`
- Add logging for handled requests
- Log transform cache key
- Add logging for transform cache hits/misses

Reviewed By: jeanlauliac

Differential Revision: D4377867

fbshipit-source-id: 9ec2060432f8c5e68561d3fe8ec7127f76c4a081
2017-01-04 07:13:32 -08:00
Jean Lauliac ede04abf8f packager: make output simpler, more legible
Reviewed By: cpojer

Differential Revision: D4339417

fbshipit-source-id: f174ee11bc220de5e8da1d8227e9a9ceb5319e8d
2016-12-19 10:58:32 -08:00
Steve Kellock f49093f397 Fixes launching Visual Studio Code due to args being a nested array.
Summary:
**Motivation**

Visual Studio Code appears to have been accidentally borked in RN 38 & 39.

[Here you see](a643784144 (diff-9ad1aafc931637a94d74b60c06b46871R153)) args become an array to support the new `shell-quote` support.

Problem is, `getArgumentsForLineNumber` also returns an array.

[And because we](a643784144 (diff-9ad1aafc931637a94d74b60c06b46871R161)) `push` instead of `concat`, we get hawt array-on-array action.

Surprisingly Atom works.  But Code doesn't like this at all.

**Test plan (required)**

On RN 0.38 and 0.39, what's happening when I click on the simulator stack frame, Code opens with the array as a string...

![image](https://cloud.githubusercontent.com/assets/68273/20971724/83a3d7c4-bc60-11e6-8170-a1c2a4adee60.png)

I've tested Vim, Code and Atom (all on 10.11.6) as well as all combinations of `REACT_EDITOR` both set
Closes https://github.com/facebook/react-native/pull/11345

Differential Revision: D4339963

Pulled By: lacker

fbshipit-source-id: 030cb9e3d84fd6861f28e3652bebfe2eef28dd62
2016-12-16 10:28:35 -08:00
David Aurelio 6786cbd3e4 Add fbjs definitions to flow config
Reviewed By: zertosh

Differential Revision: D4291805

fbshipit-source-id: 3dcb8ffe6132bd04a3048edae64e9d273c2dcae4
2016-12-08 02:43:25 -08:00
Eric Palakovich Carr 38d275f8b5 Red Box should open PyCharm at line number of error
Summary:
This is a simple one line change.  When a red box is launching the editor, if `launchEditor.js` is aware of your editor it can also add a line number to open the file at.  So if the stacktrace shows an error on like 56 in `ako.js` then it'll try`wstorm /Users/somelady/src/project/ako.js:56` instead of `wstorm /Users/somelady/src/project/ako.js`.

This adds PyCharm's command line launcher, which is named `charm`.  There is existing logic to handle other JetBrains editors, so I just did a simple one line addition.

**Test plan (required)**

* Install PyCharm (if needed)
* Set environment variable `REACT_EDITOR` to `charm`
* Open PyCharm
* Add/replace the current `charm` command via `Tools -> Create Command-line launcher...` in PyCharm.
* Run a React Native project with an error in the source code.
* In the generated red box, click on one of the entries in the stack trace
* File should open in PyCharm at the correct line number.
Closes https://github.com/facebook/react-native/pull/11275

Differential Revision: D4295724

Pulled By: javache

fbshipit-source-id: 29dec525f76c2f0a3ee203cac67408eecc8ac6b6
2016-12-07 17:13:42 -08:00
Andrew Imm 67828a52bd Allow custom platforms for the RN Packager on a per-project basis
Reviewed By: cpojer

Differential Revision: D4255979

fbshipit-source-id: bf900b67ee30e2f994e96c9a6103ed2e53a87f88
2016-12-02 09:43:31 -08:00
Charles Dick 59dd2133cb ignore heap captures
Reviewed By: mkonicek

Differential Revision: D4265530

fbshipit-source-id: 0933fea4ee2c2ee89805ab9c8d8819a928087c7b
2016-12-02 08:28:32 -08:00
Lukas Piatkowski 81b1a2c6a5 Propagate bytecode offset in SamplingProfiler and use it to name unnamed functions
Reviewed By: cwdick

Differential Revision: D4251568

fbshipit-source-id: 2343d8f6a5b2f247a7af1bbd0112bed8edadcbfe
2016-12-01 09:43:37 -08:00
Lukas Piatkowski 48b95f08fb Refactory of SamplingProfiler, CpuProfileGenerator and jscProfilerMiddleware
Reviewed By: cwdick

Differential Revision: D4251541

fbshipit-source-id: ccd221beadd87f6a8cf27a1d68ae06599cf54333
2016-12-01 09:43:37 -08:00
Joel Sánchez 921921237f Add alternative lsof command for killing a process running on port 8081.
Summary:
I was running RN 0.31 on ArchLinux (kernel 4.7), and "react-native start"
was refusing to run on the default (and sometimes required, as I have
noticed) port. I tried executing the suggested lsof command, but that did not
work. Somewhere I found the lsof command I include in this commit, and that
worked (it was a node.js process). So I'm including it, since I found it
helpful.
Closes https://github.com/facebook/react-native/pull/9402

Reviewed By: lacker

Differential Revision: D4144400

Pulled By: hramos

fbshipit-source-id: 6203549455555efc59b7bab0a3ec23957d80b956
2016-11-30 17:13:30 -08:00
Charles Dick 48d3cd7d26 Pull aggrow from facebookincubator/tracery-prerelease
Reviewed By: bnham

Differential Revision: D4250937

fbshipit-source-id: b5f2cfdeb06c04399670e463b8b2498e2fe0074b
2016-11-30 12:58:35 -08:00
Charles Dick 3094c36c81 remove old heap capture in preparation for pull from tracery-prerelease
Reviewed By: bnham

Differential Revision: D4250926

fbshipit-source-id: 7cfbb8d8aae5ef150f0260c92e946d569e41f7fb
2016-11-30 12:58:35 -08:00
Christoph Pojer 6554ad5983 Kill fastfs
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
2016-11-30 04:28:32 -08:00