Programmatic API

[sindresorhus]

So other tools can use it without having to spawn. Right now I spawn in gulp-ava.

This would also help us have a better separation between the CLI and the API.

The API should be high-level and do whatever the CLI does now, like forking, etc. The CLI would just be a super-thin wrapper calling the API.

const Ava = require('ava').Ava;

const instance = new Ava({
  files: ['foo.js', 'test/**'],
  failFast: true
});

instance.run();

instance.log().pipe(process.stdout);

The above is just a quick example. I hope it will end up looking better than that.

[kevva]

I'll try work on this tomorrow. Definitely needed.