Summary:
This will allow consumers to supply their own transformer to all `react-native` cli commands by simply implementing `rn-cli.config.js` and overriding `getTransformModulePath()`. That way they don't have to fork various parts of the iOS and Android build system that React Native already provides just to add a `--transformer` command line argument.
**Test plan:** Applied this patch to the React Native version in my app, implemented `getTransformModulePath()` in my `rn-cli.config.js`, and verified that my custom transformer is invoked.
Closes https://github.com/facebook/react-native/pull/7961
Differential Revision: D3404201
Pulled By: foghina
fbshipit-source-id: c7eaa85de84d485d06d23a2ffea899821b2cf71c
Summary: @public We're moving all the operation from `local-cli` to the `private-cli` and improving the code in the process. On this diff we introduce the `server` command which will be use to start the packager server. On follow up diffs we'll make changes to start using it from `local-cli`.
Reviewed By: @vjeux
Differential Revision: D2531443
fb-gh-sync-id: 5f7f12a250895265d83d1b076f6bbddb5cbdc257
Philipp von Weitershausen
Martín Bigio