Summary:
We used to only cache the `dependencies` and `name` of a Module but we were actually accessing two more fields (async dependencies and the `isHaste` field) which meant we were always reading every single file from disk. In D2644383 I noticed that but realized that the Promise was cached, meaning we would read every file once *per instance* and I didn't think about cross-instance reads over time. My initial version added more caching (but also missed the `isHaste` field) but then I got rid of the cache call for `dependencies`. So my change from before didn't make anything worse but it also didn't make anything better. This change now caches everything until the contents of the file actually changes.
public
Reviewed By: martinbigio
Differential Revision: D2831569
fb-gh-sync-id: 74081abc0ce3ca96b4e56c3c9b6d24aa84f7496c
Summary:
It's possible that a mock doesn't have an associated real module that it maps to. This is actually very common in www, where we have JS mocks for dynamic PHP JS modules. The implementation I chose seems like the smartest one for now: if a module cannot be resolved, we look up whether we have a mock with the same id. If we do, we just resolve it. That's it! And it also only does the minimum amount of resolution necessary.
public
Reviewed By: martinbigio
Differential Revision: D2822277
fb-gh-sync-id: 7c9fbb6f69a0c0c85157c0650f5719d94a02410e
Summary:
I'm working on deploying haste2 with jest. This updates all the files that require changes for this to work and they are backwards compatible with the current version of jest.
* package.json was just outdated. I think haste1's liberal handling with collisions made this a "non-issue"
* env.js didn't properly set up ErrorUtils, also unsure why that isn't a problem in jest right now already?
* some things were mocking things they shouldn't
* Because of the regex that matches against providesModule and System.import, it isn't possible to list module names more than once. We have multiple tests reusing the same providesModule ids and using System.import with modules that only exist virtually within that test. Splitting up the strings makes the regexes work (we do the same kind of splitting on www sometimes if we need to) and using different providesModule names in different test files fixes the problem. I think the BundlesLayoutIntegration-test is going to be deleted, so this doesn't even matter.
public
Reviewed By: voideanvalue
Differential Revision: D2809681
fb-gh-sync-id: 8fe6ed8b5a1be28ba141e9001de143e502693281
Summary:
public
We're not planning to accept file removals in the short term on the HMR interface so lets bail when a file is removed (before this this we were throwing when trying to get the shallow dependencies).
Reviewed By: yungsters
Differential Revision: D2810534
fb-gh-sync-id: f2733382f4a2619e22bdf1163aa4180694fff9f8
Summary:
public
Before this diff we were only accepting the module that was modified but the user. This works fine as long as the user doesn't modify the dependencies a module has but once he starts doing so the HMR runtime may fail when updating modules' code because they might might a few dependencies. For instance, if the user changes the `src` a `Image` has to reference an image (using the new asset system) that wasn't on the original bundle the user will get a red box. This diff addresses this by diffing the modules the app currently has with the new ones it should have and including all of them on the HMR update. Note this diffing is only done when the we realize the module that was modified changed it's dependencies so there's no additional overhead on this change.
Reviewed By: vjeux
Differential Revision: D2796325
fb-gh-sync-id: cac95f2e995310634c221bbbb09d9f3e7bc03e8d
Summary:
We don't (yet) treat these the same as any other modules because we still have special resolution rules for them in the packager allowing the use of `providesModule`, but I believe this allows people to use npm react in their RN projects and not have duplicate copies of React. Fixesfacebook/react-native#2985.
This relies on fbjs 0.6, which includes `.flow` files alongside the `.js` files to allow them to be typechecked without additional configuration. This also uses react 0.14.5, which shims a couple of files (as `.native.js`) to avoid DOM-specific bits. Once we fix these in React, we will use the same code on web and native. Hopefully we can also remove the packager support I'm adding here for `.native.js`.
This diff is not the desired end state for us – ideally the packager would know nothing of react or fbjs, and we'll get there eventually by not relying on `providesModule` in order to load react and fbjs modules. (fbjs change posted here but not merged yet: https://github.com/facebook/fbjs/pull/84.)
This should also allow relay to work seamlessly with RN, but I haven't verified this.
public
Reviewed By: sebmarkbage
Differential Revision: D2786197
fb-gh-sync-id: ff50f28445e949edc9501f4b599df7970813870d
Summary:
public
Compute the dependencies of the bundle entry file just before sending HMR updates. In case the file that was changed doesn't belong to the bundle bail.
Reviewed By: vjeux
Differential Revision: D2793736
fb-gh-sync-id: f858e71b0dd5fe4f5b2307a22c6cef627eb66a22
Summary:
There's quite a bit of code scattered around the packager regarding ignoring the `providesModule` Haste pragma in any file that isn't in `react-native`, `react-tools` or `parse`. There is even a (passing) test case.
However, there's an edge case.
Take, for example, `fbjs`. It has a module inside of it called `ErrorUtils`. `react-relay` requires this file normally, in Common.JS style, by doing `require('fbjs/libs/ErrorUtils')`. But when `react-native` attempts to require `ErrorUtils` using the HasteModule format (in it's JavaScript initialization), it resolves the `fbjs` `ErrorUtils` module, instead of RN's `ErrorUtils`.
This happens, it turns out, because when a module is read (in `Module._read`), it's not caring about whether or not it should pay attention to `providesModule`, and is just assigning the `providesModule` value as the id of the module no matter what. Then when `Module.getName` is called, it will always use that `data.id` that was set, thus creating the wrong dependency tree.
This
Closes https://github.com/facebook/react-native/pull/3625
Reviewed By: svcscm
Differential Revision: D2632317
Pulled By: vjeux
fb-gh-sync-id: efd8066eaf6f18fcf79698beab36cab90bf5cd6d
Summary:
Here are some small fixes for issues we've encountered with very large RN projects (mostly huge dependency trees in `node_modules`).
cc amasad martinbigio
Closes https://github.com/facebook/react-native/pull/4880
Reviewed By: svcscm
Differential Revision: D2782834
Pulled By: mkonicek
fb-gh-sync-id: e316a62b84ba796b80ac819431414ebf27f7b566
Summary:
in ```fastfs.js ``` when ```getFile()``` got a exception it will print ``` Unable to find file with path: null ``` in terminal .
It's confused
Closes https://github.com/facebook/react-native/pull/4737
Reviewed By: svcscm
Differential Revision: D2752888
Pulled By: androidtrunkagent
fb-gh-sync-id: a366da1eea27c691248dcb17019f4462a639ea70
Summary: React Native is a lot more powerful an environment than the browser, so we need an alternate mapping, as specified [here](https://github.com/defunctzombie/node-browser-resolve#browser-field)
An example:
```js
{
"browser": {
"./lib/server": false
},
"react-native": {
"dgram": "react-native-udp",
"fs": "react-native-level-fs"
},
"chromeapp": {
"dgram": "chrome-dgram",
"fs": "level-filesystem"
}
}
```
on the other hand, if "react-native" is not present in package.json, you should fall back to "browser"
other than the one (nesting) test added, the tests are unchanged, just done for both "react-native" and "browser"
(I've implemented [react-native-udp](https://npmjs.org/package/react-native-udp) and [react-native-level-fs](https://npmjs.org/package/react-native-level-fs), but they obviously don't belong in the traditional "browser" field as they won't run anywhere except in React Native.)
Closes https://github.com/facebook/react-native/pull/2208
Reviewed By: svcscm
Differential Revision: D2691236
Pulled By: vjeux
fb-gh-sync-id: 34041ed50bda4ec07f31d1dc50dcdfa428af2512
Summary: All minor changes since we were already on the beta: most notable is that destructors are required in pooling to help prevent memory leaks.
public
Reviewed By: sebmarkbage
Differential Revision: D2608692
fb-gh-sync-id: acdad38768f7f48c0f0e7e44cbff6f0db316f4ca
Summary: I'm planning to split up `DependencyResolver` into the react-native specific implementation of it and a new, generic resolver that is going to replace `node-haste` for jest and other places where we might need JS dependency resolution.
The plan is to split the two folders up so that:
* `Resolver` is the folder for all the react-native specific resolver code
* `DependencyResolver` will become a standalone library, eventually moving into a package called `node-haste`.
There is still a lot to be figured out. This is just the first diff of likely many. The current goal is to make `DependencyResolver` standalone to be able to create an instance of a resolver and resolve all dependencies for a file. This is when I can start integrating it more seriously with jest.
This diff simply moves a bunch of things around and turns `HasteModuleResolver` into an ES2015 class ( :) ).
bypass-lint
public
Reviewed By: davidaurelio
Differential Revision: D2614151
fb-gh-sync-id: ff4e434c4747d2fb032d34dc19fb85e0b0c553ac
Summary: public
We're seeing intermittent errors on the packager when rebasing. Since this is very hard to repro lets add more logging to the warning we show just before starting to rebuild the entire haste map again
Reviewed By: frantic
Differential Revision: D2585427
fb-gh-sync-id: fbfa953f6c8ae78cbee2f3ab19ad494b084165c8
Summary: @public
We've been forgiving unresolved modules errors in the past but we've realized that doing so makes the codebase a bit unstable as people don't make sure to fix these errors. From now on we'll early fail and stop the packager when any module cannot be resolved (including assets)
Reviewed By: @amasad
Differential Revision: D2518076
fb-gh-sync-id: e170d95b905cc29afbe46e24b65425ddd887f77c
Summary: @public
Dead-lock trying to read package.json because it's both a "module" and a "package". in `Module.getName` it uses the cache key "name" and tries to call `Package.getName` which uses the same cache key and we end up returning the same promise that we're trying to resolve resulting in a dead-lock.
This changes the cache keys for the packages that adds a prefix "package-".
Reviewed By: @vjeux
Differential Revision: D2506979
Summary: *This is a PR to fix#1939 (DependencyResolver fails to handle ES6 modules import statements with new lines)*
**This PR includes:**
- A fix to the problematic regular expression
- Updated tests that support the new line style.
**Summary:**
We found out that while the packager does its module wrapping thing for lines like this:
```js
import theDefault, { named1, named2 } from 'src/mylib';
```
It fails to do the same for multi line imports:
```js
import theDefault, {
named1,
named2
} from 'src/mylib';
```
We've tracked done the issue to a [faulty regular expression in replacePatterns.js](https://github.com/facebook/react-native/blob/master/packager/react-packager/src/DependencyResolver/replacePatterns.js#L12)
You can see various import statements with the problematic regular expression [here](http://regexr.com/3bc8m)
We've figure out a better regular expression (you can play around with it [here](http://regexr.com/3bd3s))Closes https://github.com/facebook/react-native/pull/1940
Reviewed By: @svcscm
Differential Revision: D2498519
Pulled By: @vjeux
Summary: @public
This moves us from warnings on name collisions to errors. If the error happens in initialization it will fatal out.
However, if the error happens while working (after initialization) then I did my best to make it recoverable. The rational behind this is that if you're working and you're changing names, you may introduce a duplication while moving things around. It will suck if you have to restart the server every time you do that.
Reviewed By: @frantic
Differential Revision: D2493098
Summary: @public
Have a top-level debug namespace: `ReactNativePackager`
And add a couple of debugs in the transformer. This is ground work for adding a verbose option.
Reviewed By: @DmitrySoshnikov
Differential Revision: D2489960
Summary: @public
Fix the haste resolution algorithm. Changed the map data structure from a list of modules, to a list of modules grouped by platform.
This considerably simplifies the "getModule" method and makes it easy to properly warn about colliding module names.
This also fixes a bug where we used to include `.web` files when we shouldn't (see task).
Reviewed By: @vjeux
Differential Revision: D2482969
