Request for review

[brandonchinn178]

This is a super small library, but I think it's helpful enough to have as a separate library. resource-pool and resourcet probably don't want to incur a dependency on the other (which makes sense to me), and I was searching Hackage for a way to use withAcquire with a Pool. Providing this library would provide a quick solution if one ends up in this situation.

For me personally, I would like to use withAcquire because it uses MonadUnliftIO, whereas withResource uses MonadBaseControl (see bos/pool#31 and bos/pool#37). But I'm sure there are other situations where this might be useful (e.g. using a Pool within the MonadResource context)

I mostly copied from persistent's code here:

https://github.com/yesodweb/persistent/blob/9e6d88d767035d3e62252666ab3083ab576257bf/persistent/Database/Persist/Sql/Run.hs#L33-L45

I would love a quick review from the maintainers of these packages, to check:

1. That there isn't already implemented somewhere
2. That I'm handling it correctly (accounting for errors and such)

Many thanks in advance!

cc @bos @snoyberg

[snoyberg]

Overall seems sensible to me. There may be some place that this logic already exists, but I can't think of it off the top of my head.