Auto detect for node

[hzoo]

babel/babel#3476 (comment)

Would be super nice if it could just adhere to what's in the engines field in package.json. That way you wouldn't have to specify anything manually.

Or just determine current node version before running?

[deepsweet]

Or just determine current node version before running?

https://github.com/rtsao/babel-preset-es2015-node/blob/master/index.js

[hzoo]

yeah we can use process.version but we still need to specify whether you are compiling node or compiling for other environments

[rtsao]

What about a special value for node (e.g. {node: "process"}) which infers from process.version?

[AlicanC]

@rtsao great idea. We should support keywords in versions. #23 needs that too.

[shubheksha]

I'll work on this!

[hzoo]

Awesome - I'l try to merge something of #19 first to fix merge conflicts merged

And we can even use it on the project itself 😛

[hzoo]

@shubheksha still able to work on this? no rush though

[hzoo]

You can do what was in facebook/create-react-app#878 if you use a preset or use a local js file. If you use a package.json/babelrc you won't be able to use javascript in the config so we could have a hardcoded option for this.

so you can specify node: "process" which will be the same as node: parseFloat(process.versions.node)

And maybe process isn't the best option name for this?

[hzoo]

@shubheksha Let me know if you need any more context/help on this, or if someone else can take this too

[hzoo]

#35

w/ "node": "current" or "node": true