Babel 6

[insin]

Dependencies

• Publish development version of deduped-babel-presets to npm
• Update all dependencies to their Babel 6 versions

nwb

• Get nwb itself building and testing with Babel 6 using presets from deduped-babel-presets

User config

• Validate that babel.stage is either 0-3 or falsy when provided
• Warn if a babel.loose string is present in 0.12 config and treat it as its boolean equivalent
• Support a babel.runtime flag or string to include the transform runtime plugin

Babel config generation

Generate Babel 6 config using deduped-babel-config presets based on build and user config

• Support stage number user config as per Babel 5 and use it to choose presets.
• Support loose as boolean user config to use an ES2015 -loose config from deduped-babel-presets
• Support native boolean build config to to use an ES2015 -native config from deduped-babel-presets
• Support presets list of strings build config to to use additional named presets from deduped-babel-presets
• Support runtimeto use the runtime transform and choose which features to enable

Build config

• Configure Babel build config for React development builds
• Configure Babel build config for React production builds (taking --preact into account)
• Enable the 'react' preset by default for module and UMD builds for JSX transforms when needed (hashtag YOLO)
• Use generated Babel config with babel-loader when generating Webpack config
• Update Karma config generation to use babel-polyfill

Other

• Update tests
• Update docs

(Was: Waiting for gaearon/babel-plugin-react-transform#50)

[insin]

Reference commit from react-heatpack: insin/react-heatpack@6108dbe

[insin]

Reference for what we'll have to do behind the scenes to keep supporting Babel 5 style loose: 'all' config: https://github.com/bkonkle/babel-preset-es2015-loose/blob/master/index.js

[DenysStoianov]

@insin What about this article? http://www.2ality.com/2015/12/babel6-loose-mode.html

[insin]

Here's the start of a potential solution for Babel 6's npm2 problem for nwb: https://github.com/insin/deduped-babel-presets

[TimonVS]

What's the progress on this issue? Is there something I can do to contribute?

[insin]

Working on it in the next branch, using #31 as a reference, but haven't had time to create anything commit-worthy yet.

[insin]

Implemented in 0.12.0