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
Summary: @public
The issue of colliding haste modules have came up many times and have wasted countless engineering hours. This will start warning about it and will also start selecting modules at random so that people don't depend on undefined behavior.
Additionally, this surfaced an issue where with assets we may fatally throw if the directory doesn't exist. This is fixed by checking the existence of the directory before trying to match files in it.
Reviewed By: @jingc
Differential Revision: D2478480
Summary: Ex. When `console.log` or similar is called, this will call
the original method, which can be quite useful.
For example, under iOS, this will log to the Safari console debugger,
which has an expandable UI for inspecting objects, etc., and is also
just useful if you are using that as a REPL.
I don't believe this incurs a meaningful performance penalty unless
the console is open, but it would be easy to stick behind a flag
if that is a problem.
Closes https://github.com/facebook/react-native/pull/2486
Reviewed By: @svcscm
Differential Revision: D2472470
Pulled By: @vjeux
Summary: @public
I've noticed that the logs can be sometimes misleading, as when an Activity ends it doesn't log immediatly. A sync `console.log` would log before it although the Acitivity should've finished before.
Turns out we wait before writing out the logs to the console. I don't see any reason for this. Looking at the `Activity` module it's over-engineered. This diff makes logging sync and simplfies the module.
Reviewed By: @martinbigio
Differential Revision: D2467922
Summary: I think packager on different platform should generate same output if possible. So packager should replace '\\' in module name with '/' on Windows.
Closes https://github.com/facebook/react-native/pull/2813
Reviewed By: @svcscm
Differential Revision: D2458634
Pulled By: @martinbigio
Summary:
We don't currently support platform extensions in asset modules.
This adds supports for it:
```
require('./a.png');
```
Will require 'a.ios.png' if it exists and 'a.png' if it doesn't.
Summary:
Buck (our build system) currently starts multiple packager instances for each target and may build multiple targets in parallel. This means we're paying startup costs and are duplicating the work. This enables us to start one instance of the packager and connect to it via socket to do all the work that needs to be done.
The way this is structured:
1. SocketServer: A server that listens on a socket path that is generated based on the server options
2. SocketClient: Interfaces with the server and exposes the operations that we support as methods
3. SocketInterface: Integration point and responsible for forking off the server
Summary:
There are two fs steps and it wasn't clear why. This now puts the right label:
```
[9:38:25 PM] <START> Building in-memory fs for JavaScript
[9:38:27 PM] <END> Building in-memory fs for JavaScript (2030ms)
[9:38:27 PM] <START> Building in-memory fs for Assets
[9:38:27 PM] <END> Building in-memory fs for Assets (615ms)
```
Summary:
We've decided to move the syntax for asynchronously requiring async dependencies. The new syntax works better with promises and therefore withe async/await as well. The new syntax looks like this: `System.import('moduleA').then(moduleA => {...});` or if you're using async/await you could simply do:
let moduleA = await System.import('moduleA');
new moduleA().someFunction();
If you need to require multiple dependencies just do:
Promise
.all([System.import('moduleA'), System.import('moduleB')])
.then((moduleA, moduleB) => {...})
or the equivalent using async/await
Summary:
D2319999 introduced a regression where we stopped waiting for the "build haste map" step to finish before we accept any requests. This makes sure that we block on that.
Need to unbreak with this, but will follow up with a test to catch this in the future.
Summary:
Currently the platform selection is controlled by the blacklist. However, since we want to use the same server instance for cross-platform development, we need this to be controlled per request.
One outstanding issue, is that the DependencyGraph class wasn't designed that way and it doesn't have a per-request state. This means that with the current design race conditions is possible. If we got a request for a different platfrom while processing the previous request, we may change the outcome of the previous request.
To fix this a larger refactor is needed. I'll follow up a diff to do that.
Finally, so I don't break the universe like last time, I'll leave it up to the RN guys to update the call sites.
Summary:
Instead of using plain objects and having to convert to and from them we just use the `Module` class across the codebase.
This seems cleaner and can enforce the type as opposed to fuzzy objects.
Summary:
Introduce a Bundler capable of generating the layout of modules for a given entry point. The current algorithm is the most trivial we could come up with: (1)it puts all the sync dependencies into the same bundle and (2) each group of async dependencies with all their dependencies into a separate bundle. For async dependencies we do this recursivelly, meaning that async dependencies could have async dependencies which will end up on separate bundles as well.
The output of of the layout is an array of bundles. Each bundle is just an array for now with the dependencies in the order the requires where processed. Using this information we should be able to generate the actual bundles by using the `/path/to/entry/point.bundle` endpoint. We might change the structure of this json in the future, for instance to account for parent/child bundles relationships.
The next step will be to improve this algorithm to avoid repeating quite a bit dependencies across bundles.
