Build New Platform Plugins #53532
Description
In order to get closer to only building plugins when running from source we need a tool to build new platform plugins that is totally decoupled from the legacy optimizer, and establishes conventions we want to reuse in the updated developer toolchain @tylersmalley is working on.
My plan is to build a package that just runs a number of webpack compilers and integrates into the existing CLI. Once everything has been migrated to the new platform this tool should be able to build all the front-end assets we need and we should be able to just delete the optimizer.
Planned features:
- support single build and watch modes
- use a webpack config that is as simple as possible
- sass support
- no less support
- minification support
- automatically setup global externals for React, moment, etc.
- automatically write default export to
window.__kbnBundles__['plugin/${pluginId}']
- produce static assets that the will be loaded by the front-end and shipped with the distributable
- run webpack compilers in separate processes (optionally grouped for machines with fewer CPU cores)
- pause asset requests while builds are running
Related to #42699
Related to #36186
Related to #43290
Related to #53555