[Request] Node API

[matthizou]

Requested Update

Right now the only way to make the ES check is to use the command line.
This proposal is to also have the possibility to consume it from without node (as a function) - without spawning a child process to execute the command.

Why Is This Update Needed?

Many FE build tools are written in Node, and having an API to do the ES check would be great. It would be faster than spawning a process, error handling could be fine-tuned.
This is seen in many places - i.e: webpack or babel do it.

Feasibility

Looking at the main file, it should be easy to split it in 2 (the command line part and the actual processing)
I'll be happy to open a PR if the proposal gets a go-ahead

Are There Examples Of This Requested Update Elsewhere?

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