How to use hdevtools with cabal-dev?

Question

I use cabal-dev for my project. I want to use hdevtools with it. But hdevtools uses my cabal packages instead of cabal-dev packages. I want to use hdevtools options to make it use the cabal-dev packages. However I cannot figure out which options to use.

I know that in general, I will need to pass to hdevtools the same GHC options that I would pass to GHCi.

So, alternatively the question is what options should I pass to ghci to make it behave like the "cabal-dev ghci" command. I know those are the options I need to pass to hdevtools too.

Answer 1

You just need to tell hdevtools which package database to use. In my case it looks like this - with cabal-dev it will be a different subfolder in your project but the same idea:

I just add these two options:

-g-no-user-package-conf -g-package-conf.hsenv/ghc_pkg_db