commercialhaskell/stack

Coding Horribly

@codinghorribly

Okay, I'm pretty new to all of this, I thought x509-validation was a Stack validation library, but it's actually a separate library that Stack is leveraging?

Javier Neira

@jneira

@codinghorribly they are libraries that yesod depends on, stack should build all dependencies before even to start build yesod itself

dont worry, at beginning it could be a little it difficult :smile:

the first one is a warning and i guess it didnt stop the building (so other libraries was built after it)

Javier Neira

@jneira

the second one is a error and it stopped the build, so stack could not finish the entire process

haskell libs can use c header files and unix-time uses it extensively, i would open an issue in the github repo: https://github.com/kazu-yamamoto/unix-time/issues/new

including in the issue the log of the error and the version of you os would help maintainers

YAMAMOTO Yuji

@igrep

Why does stack (and also cabal?) have such a limitation?

Cannot use 'stack ghci' with both file targets and package targets

I got annoyed when I tried to load my package and its example code (not included in the package) at the same session of stack ghci.
I learned it can be easily avoided by typing :add path/to/example.hs after launching stack ghci.
So why doesn't stack do it automatically?

hovind

@hovind

Anyone with experience building static binaries with stack?
I'm getting a pesky

<command line>: User-specified static library could not be loaded (/usr/lib/gcc/x86_64-pc-linux-gnu/9.2.0/../../../../lib/libpgport.a)
Loading static libraries is not supported in this configuration.
Try using a dynamic library instead.

when doing stack build --ghc-options='-fPIC -lpgport -lpgcommon' :aws-sync with

    ghc-options:
      - -threaded
      - -rtsopts
      - -with-rtsopts=-N
    ld-options: -static
    extra-lib-dirs:
      - ./lib/gmp-6.1.2/.libs
      - ./lib/postgres/src/interfaces/libpq
      - ./lib/postgres/src/common
      - ./lib/postgres/src/port

Kirill Zaborsky

@qrilka

@hovind the easiest way to get a proper static build probably is https://github.com/nh2/static-haskell-nix e.g. Stack uses it for its static builds

hovind

@hovind

@qrilka Thanks, will check it out!

Alexander Korablev

@kor85

@hovind are you succeeded with static libraries?

hovind

@hovind

Using static-haskell-nix I ended up getting blocked on nh2/static-haskell-nix#22, because I need libpq. There is a workaround, but my case is not that pressing, so I'll wait for upstream. nh2/static-haskell-nix#62 if you want to follow the issue which is blocked upstream by https://gitlab.haskell.org/ghc/ghc/issues/17468.

static-haskell-nix was quite plug-and-play except for upstream issues, @nh2 has been doing tremendous work.

hovind

@hovind

@kor85

Matthieu Coudron

@teto

Hi, I hit the issue "You cannot have packages and a shell-file filled at the same time in your nix-shell configuration." with stack 2.3.1 and this stack.yaml

resolver: lts-13.19
nix:
  enable: true
  shell-file: shell.nix

there is no packages defined anywhere so I wonder why the warning. There is no package.yaml either.

Kirill Zaborsky

@qrilka

@teto there is a possibility that packages are defined in your .stack/config.yaml

also verbose log of Stack could shine some light maybe (but not sure in this case)

Matthieu Coudron

@teto

@qrilka how can I get verbose logs ? I've tried several flags from stack --help without success

Paolo G. Giarrusso

@Blaisorblade

doesn’t stack take --verbose? but flag order might make a difference (I forget)

double-checking.

Paolo G. Giarrusso

@Blaisorblade

Yeah, it's --verbose

Matthieu Coudron

@teto

$ stack --stack-yaml=./stack.yaml build --verbose
2.1.3.1 x86_64 hpack-0.33.0
2020-02-15 19:21:33.643425: [debug] Loading project config file stack.yaml
2020-02-15 19:21:33.644059: [error] You cannot have packages and a shell-file filled at the same time in your nix-shell configuration.

Matthieu Coudron

@teto

I ended up running strace and stack looks into various folders including ~/.stack which indeed contains packages. verbose not very helpful there

Kirill Zaborsky

@qrilka

@teto you didn't answer about ~/.stack/config.yaml

does it have packages in it?

and what does stack.yaml contain?

Matthieu Coudron

@teto

~/.stack/config.yaml did contain packages. It works now

Kirill Zaborsky

@qrilka

great to hear that it was resolved

Robin

@robinvd

I want to staticly link a '.a' (from rust) into the binary but cant seem to get it to work. Are there any resources on this?
i have tried

    extra-libraries:
      - nameoflib
    extra-lib-dirs:
      - /locoflib/

but this only works with absolute paths, and i need a relative path as the other project is in the same repo and distributed along with it

Arian van Putten

@arianvp

Hey quick question

now with pantry; is there any semantic difference between putting things in a snapshot vs putting them in extra-deps in stack.yaml?

Loutine

@Loutine

hey guys,I'm new to haskell and I'm following the turtorial of "learn haskell" try to use stack to install ghc

but there's something wrong when I try to "stack setup"

Exception while reading snapshot from lts-15.12:
HttpExceptionRequest Request {
  host                 = "raw.githubusercontent.com"
  port                 = 443
  secure               = True
  requestHeaders       = [("User-Agent","Haskell pantry package")]
  path                 = "/commercialhaskell/stackage-snapshots/master/lts/15/12.yaml"
  queryString          = ""
  method               = "GET"
  proxy                = Nothing
  rawBody              = False
  redirectCount        = 10
  responseTimeout      = ResponseTimeoutDefault
  requestVersion       = HTTP/1.1
}
 (InternalException (HostCannotConnect "raw.githubusercontent.com" [Network.Socket.connect: <socket: 14>: does not exist (Connection refused),Network.Socket.connect: <socket: 14>: does not exist (Connection refused)]))

I tried to use a http_proxy but still not work

this is my environment

Arch linux
stack Version 2.3.1, Git revision de2a7b694f07de7e6cf17f8c92338c16286b2878 (dirty) (8103 commits) x86_64

Loutine

@Loutine

And because I'm a student in china I'm using the configuration mentioned in install_and_upgrade.md

Simon Hafner

@reactormonk

Is there a way to build a benchmark binary and copy it out? i don't seem to be able to get a hold of it.

Jens Petersen

@juhpetersen_gitlab

Does stack (now?) drop a new build cache when the initial build fails?

I better check github issues

Jens Petersen

@juhpetersen_gitlab

Not sure, maybe it was a local issue or some corner case

Marcin Rzeźnicki

@marcin-rzeznicki

Hey - is it possible to profile a stack 'script' ?

Matthieu Coudron

@teto

hi guys, I am trying to get https://github.com/haskell/haskell-language-server#features built by bazel. I can't get stack.yaml to fetch the submodules so everything fails. Here is an excerpt from my stack.yaml:

packages:
- github: haskell/haskell-language-server
  # 0.4 release
  commit: 0a18edde24923251a148cbbc0ae993a6aac83b9c
  sha256: e965019bc48ef75e43992b209055e55b245faaaede04c02fb4825f124ebc3dd1
  subdirs:
    - .
    - ./ghcide/
    - ./hls-plugin-api

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