How do I find the name of a package in Stack?

Question

I am trying to include Control.Monad.State.Lazy in my stack project, but I cannot figure out what package I must include in package.yaml dependencies.

I usually end up guessing it, but I can't find it this time. What is the correct way to find the name of the package dependency in stack?

I don't know about stack, but https://hayoo.fh-wedel.de/?query=Control.Monad.State.Lazy says it's part of `mtl`. — melpomene, Dec 10 '18 at 03:38
Another place to search: https://www.stackage.org/lts-12.22/hoogle?q=Control.Monad.State.Lazy — arrowd, Dec 10 '18 at 06:21

score 1 · Answer 1 · answered Dec 13 '18 at 04:54

1

On stackage.org, you can view the list of all modules in a snapshot, and which package they are found in:

https://www.stackage.org/lts-12.21/docs

answered Dec 13 '18 at 04:54

Michael Snoyman

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How do I find the name of a package in Stack?

1 Answers1