cli: support for config files

[blueyed]

It would be great if config files would be supported, e.g. to ignore/whitelist terms (#114, 685c0a2).

It would be useful if it supported an explicit config file via an argument, and otherwise look for a config starting from the linted file upwards, falling back to a global config in the user's home (preferably XDG-style, i.e. ~/.config/writegood/config).

I assume / hope there a good libraries for this already?

As for the format: it would be nice if this wasn't in JSON, so that it would allow for comments in it.

[RichardLitt]

I'm not unopposed. @btford?

I assume / hope there a good libraries for this already?

Most likely. Not sure what, though.

[btford]

I'm fine with this as long as it's not YAML. A JS file that exports some object seems fine.

I'e been using Dhall for this kind of thing, but I'm not too picky.

[oalders]

This would be really helpful. There are some things I'd like to disable on a per-project basis, but that's not so easy when using Ale.

[rudolf-adamkovic]

FYI: This is a (surprising) show stopper. I want to use Vim + ALE + “write good” to check on my mathematical writing but I need to allow “if and only if” and other terms.

[RichardLitt]

PRs accepted. :)