stack haddock: internal error when calculating transitive package dependencies.

[PaulJohnson]

General summary/comments (optional)

stack haddock pandoc generates error: internal error when calculating transitive package dependencies.

This may be an instance of https://github.com/haskell/cabal/issues/5423.
verbose.txt

Steps to reproduce

$ stack new test --solver
$ cd test
$ stack haddock pandoc

Expected

Haddock docs for pandoc and its dependencies are generated.

Actual

What actually happened.

Preprocessing library 'attoparsec' for haddock-library-1.5.0.1..
Running Haddock on library 'attoparsec' for haddock-library-1.5.0.1..
Haddock coverage:
100% ( 24 / 24) in 'Data.Attoparsec.Combinator'
97% ( 66 / 68) in 'Data.Attoparsec.ByteString'
Missing documentation for:
Parser (vendor/attoparsec-0.13.1.0/Data/Attoparsec/ByteString/Internal.hs:95)
Result (vendor/attoparsec-0.13.1.0/Data/Attoparsec/ByteString/Internal.hs:96)
98% ( 86 / 88) in 'Data.Attoparsec.ByteString.Char8'
Missing documentation for:
Parser (vendor/attoparsec-0.13.1.0/Data/Attoparsec/ByteString/Internal.hs:95)
Result (vendor/attoparsec-0.13.1.0/Data/Attoparsec/ByteString/Internal.hs:96)
Warning: Data.Attoparsec.Combinator: could not find link destinations for:
Parser Chunk ChunkElem
Warning: Data.Attoparsec.ByteString: could not find link destinations for:
Parser Chunk
Warning: Data.Attoparsec.ByteString.Char8: could not find link destinations for:
Parser Chunk
Documentation created:
.stack-work/dist/x86_64-linux-tinfo6/Cabal-2.2.0.1/doc/html/haddock-library/index.html,
.stack-work/dist/x86_64-linux-tinfo6/Cabal-2.2.0.1/doc/html/haddock-library/haddock-library.txt
Preprocessing library for haddock-library-1.5.0.1..
Running Haddock on library for haddock-library-1.5.0.1..
Cabal-simple_mPHDZzAJ_2.2.0.1_ghc-8.4.4: internal error when calculating
transitive package dependencies.
Debug info: []

verbose.txt

$ stack <your command here> <args> --verbose
<output>

Stack version

$ stack --version
Version 1.9.3, Git revision 40cf7b37526b86d1676da82167ea8758a854953b (6211 commits) x86_64 hpack-0.31.1

Method of installation

• Official binary, downloaded from stackage.org or fpcomplete's package repository

[mattaudesse]

I've played around with this a little bit but I'm not sure what to make of it yet...

It's strange that cabal-install-2.4.0.0/Cabal-2.4.0.1 seemed to resolve the problem in cabal #5432 since I believe that's what stack v1.9.3 was built against:

https://github.com/commercialhaskell/stack/blob/v1.9.3/stack.yaml

resolver: lts-11.22

# docker:
#   enable: true
#   repo: fpco/stack-full
# image:
#   containers:
#     - base: "fpco/stack-base" # see ./etc/docker/stack-base/Dockerfile
#       name: "fpco/stack-test"
nix:
  # --nix on the command-line to enable.
  packages:
    - zlib
    - unzip
flags:
  stack:
    hide-dependency-versions: true
    supported-build: true
extra-deps:
- Cabal-2.4.0.1@rev:0
- cabal-install-2.4.0.0@rev:1
- resolv-0.1.1.2@rev:0
- infer-license-0.2.0@rev:0 #for hpack-0.31
- hpack-0.31.1@rev:0
- http-api-data-0.3.8.1@rev:1
- githash-0.1.3.0@rev:0
- yaml-0.10.4.0@rev:0 #for hpack-0.31
- windns-0.1.0.0@rev:0
- hackage-security-0.5.3.0@rev:2
- cabal-doctest-1.0.6@rev:2

# Avoid https://github.com/commercialhaskell/stack/issues/4125
# (triggered because later versions of persistent transitively depends
# on haskell-src-exts, which needs the 'happy' build tool)
# THIS IS FIXED AS OF STACK 1.8, but keep these here until next major
# version to maintain the ability to build stack with older versions.
- persistent-2.7.1@rev:0
- persistent-sqlite-2.6.4@rev:0
- resourcet-1.1.11@rev:0
- conduit-1.2.13.1@rev:0
- conduit-extra-1.2.3.2@rev:0

ghc-options:
   "$locals": -fhide-source-paths

[mattaudesse]

Thanks for reporting by the way.

[mihaimaruseac]

Might be a duplicate or related to #3989

[lippirk]

I have just added pandoc to my package.yaml, and i get the same issue with stack build --haddock-deps

(stack.yaml: lts-12.17)

[lippirk]

update: I am getting no errors with lts-13.0!

[mihaimaruseac]

That's because newer pandoc no longer uses the internal library.

[mihaimaruseac]

Also, https://github.com/haskell/haddock/issues/986

[qrilka]

It looks like https://github.com/haskell/cabal/issues/1919 is the problem, I could reproduce it with the current Stack's master in the Stack project of the internal-libraries integration test