Haddocks don't build for classy-prelude-yesod

[MaxGabriel]

I'm pretty sure this is just a Haddock bug and you can close this, but just for awareness sake:

stack haddock classy-prelude-yesod --no-haddock-deps # no-haddock-deps to avoid haskell-src-exts using up all memory https://github.com/haskell/haddock/issues/928

Haddock coverage:
haddock: internal error: internal: extractDecl
CallStack (from HasCallStack):
  error, called at utils/haddock/haddock-api/src/Haddock/Interface/Create.hs:1097:12 in main:Haddock.Interface.Create
Completed 8 action(s).

--  While building custom Setup.hs for package classy-prelude-yesod-1.4.0 using:
      /Users/maximiliantagher/.stack/setup-exe-cache/x86_64-osx/Cabal-simple_mPHDZzAJ_2.2.0.1_ghc-8.4.3 --builddir=.stack-work/dist/x86_64-osx/Cabal-2.2.0.1 haddock --html --hoogle --html-location=../$pkg-$version/ --haddock-option=--hyperlinked-source
    Process exited with code: ExitFailure 1

LTS: 12.4
OS: macOS Mojave

[snoyberg]

I agree, it's likely a Haddock bug. Let's leave it open in case (1) someone wants to implement a workaround and (2) so future reporters can find this issue.

[normenmueller]

Is there anything new on this? Haddock still fails on classy-prelude-yesod. Any workaround, e.g., on how to exclude classy-prelude-yesod from Hoogle db generation? Otherwise my stack hoogle always fails.

[snoyberg]

I've made no changes and don't intend to. I've generally given up on Haddock to be honest.

[normenmueller]

@snoyberg off topic: I'm also not bothered w/ Haddock too much, but stack hoogle quits in case of Haddock errors. Is there any workaround, as I'm bothered about Hoogle ;-)

[snoyberg]

Not that I'm aware of

[normenmueller]

@snoyberg Thanks for your time anyway. Re-posted at https://stackoverflow.com/questions/55479788/build-local-hoogle-db-despite-error-in-haddock

[MaxGabriel]

It might be this bug haskell/haddock#979

[normenmueller]

Thanks for the link. Contributing to this thread now.

[meteficha]

I've made no changes and don't intend to. I've generally given up on Haddock to be honest.

What have you been using instead of Haddock? These bugs are annoying but not having anything is worse :).

[snoyberg]

I still use Haddock when it's available. I've just spent so much time working around it that, if I don't have the Haddocks, I'll drop down to reading the source directly. It sucks, I agree.