In my project.cabal file, I have:
cabal-version: >=1.10
name: inlinewrappers
version: 0.1.0.0
build-type: Simple
extra-source-files: CHANGELOG.md
executable inlinewrappers
main-is: Main.hs
build-depends: base >=4.14 && <4.15
, inline-c
extra-libraries: gsl
include-dirs: cbits
includes: hello.h
default-language: Haskell2010
I'm hoping that cabal to rebuild my project after I made modifications to the hello.h header file.
Is there a cabal flag that I can turn on?
As the comments indicate, there is no way to do this currently, though there is an open ticket in cabal to improve the situation.
Related
I've added "QuickCheck" to the "build depends" section of the .cabal file but when I do stack setup the "QuickCheck" section of the file gets removed and I get this error:
It is a member of the hidden package ‘Cabal-3.2.1.0’.
You can run ‘:set -package Cabal’ to expose it.
(Note: this unloads all the modules in the current scope.)
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
1 | import Distribution.Simple
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
the stack build and stack ghci work fine but stack test gives this error:
Could not find module ‘Test.QuickCheck’
Use -v (or `:set -v` in ghci) to see a list of the files searched for.
|
3 | import Test.QuickCheck
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Progress 1/2
-- While building package palindrome-testing-0.1.0.0 (scroll up to its section to see the error) using:
/Users/artin/.stack/setup-exe-cache/aarch64-osx/Cabal-simple_mPHDZzAJ_3.2.1.0_ghc-8.10.7 --builddir=.stack-work/dist/aarch64-osx/Cabal-3.2.1.0 build lib:palindrome-testing exe:palindrome-testing-exe test:palindrome-testing-test --ghc-options " -fdiagnostics-color=always"
Process exited with code: ExitFailure 1
.cabal file:
cabal-version: 1.12
-- This file has been generated from package.yaml by hpack version 0.34.6.
--
-- see: https://github.com/sol/hpack
name: palindrome-testing
version: 0.1.0.0
description: Please see the README on GitHub at <https://github.com/githubuser/palindrome-testing#readme>
homepage: https://github.com/githubuser/palindrome-testing#readme
bug-reports: https://github.com/githubuser/palindrome-testing/issues
author: Author name here
maintainer: example#example.com
copyright: 2022 Author name here
license: BSD3
license-file: LICENSE
build-type: Simple
extra-source-files:
README.md
ChangeLog.md
source-repository head
type: git
location: https://github.com/githubuser/palindrome-testing
library
exposed-modules:
Lib
other-modules:
Paths_palindrome_testing
hs-source-dirs:
src
build-depends:
base >=4.7 && <5
default-language: Haskell2010
executable palindrome-testing-exe
main-is: Main.hs
other-modules:
Paths_palindrome_testing
hs-source-dirs:
app
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, palindrome-testing
default-language: Haskell2010
test-suite palindrome-testing-test
type: exitcode-stdio-1.0
main-is: Spec.hs
other-modules:
Paths_palindrome_testing
hs-source-dirs:
test
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, palindrome-testing
, QuickCheck
default-language: Haskell2010
ghc version: 8.10.7
stack version: 2.7.4
cabal version: 3.6.2
I'm running macOS monterey on M1
Your cabal file was generated from the package.yaml file in that directory:
-- This file has been generated from package.yaml by hpack version 0.34.6.
--
-- see: https://github.com/sol/hpack
If you want to add new dependencies, add them to package.yaml. Any changes you make to the .cabal file will get overridden.
I installed a simple proyect with stack, my stack.yaml looks like:
resolver: lts-14.6
packages:
- .
dependencies:
- base (>=3 && <5)
- numbers
and I have a simple code that only calls a function:
module Main where
import Lib
import Data.Number.CReal
main :: IO ()
main = someFunc
and the error is always the same:
numbers-play-0.1.0.0: unregistering (local file changes: numbers-play.cabal)
numbers-play> configure (lib + exe)
Configuring numbers-play-0.1.0.0...
numbers-play> build (lib + exe)
Preprocessing library for numbers-play-0.1.0.0..
Building library for numbers-play-0.1.0.0..
[1 of 2] Compiling Lib
[2 of 2] Compiling Paths_numbers_play
Preprocessing executable 'numbers-play-exe' for numbers-play-0.1.0.0..
Building executable 'numbers-play-exe' for numbers-play-0.1.0.0..
[1 of 2] Compiling Main [Data.Number.CReal changed]
/home/damian/dev/haskell/numbers-play/app/Main.hs:4:1: error:
Could not load module ‘Data.Number.CReal’
It is a member of the hidden package ‘numbers-3000.2.0.2’.
Perhaps you need to add ‘numbers’ to the build-depends in your .cabal file.
Use -v to see a list of the files searched for.
|
4 | import Data.Number.CReal
| ^^^^^^^^^^^^^^^^^^^^^^^^
My cabal file:
cabal-version: 1.12
-- This file has been generated from package.yaml by hpack version 0.31.2.
--
-- see: https://github.com/sol/hpack
--
-- hash: fb0ed9e8eb8062639f1d6a02a65d857d15b3265158925242287d4a8a885f8381
name: numbers-play
version: 0.1.0.0
description: Please see the README on GitHub at <https://github.com/githubuser/numbers-play#readme>
homepage: https://github.com/githubuser/numbers-play#readme
bug-reports: https://github.com/githubuser/numbers-play/issues
author: Author name here
maintainer: example#example.com
copyright: 2019 Author name here
license: BSD3
license-file: LICENSE
build-type: Simple
extra-source-files:
README.md
ChangeLog.md
source-repository head
type: git
location: https://github.com/githubuser/numbers-play
library
exposed-modules:
Lib
other-modules:
Paths_numbers_play
hs-source-dirs:
src
build-depends:
base >=4.7 && <5
default-language: Haskell2010
executable numbers-play-exe
main-is: Main.hs
other-modules:
Paths_numbers_play
hs-source-dirs:
app
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, numbers-play
default-language: Haskell2010
test-suite numbers-play-test
type: exitcode-stdio-1.0
main-is: Spec.hs
other-modules:
Paths_numbers_play
hs-source-dirs:
test
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, numbers-play
default-language: Haskell2010
How can I import it properly?
The dependencies field, which specifies the numbers dependency, should be in your package.yaml file (which Stack uses to generate the cabal file), and not in stack.yaml (which is for Stack-specific configuration, such as choosing the resolver).
I'm trying to make 2 executables "project". All duplicates of this question did not help me - their answers don't fix my problem. I have .cabal file like this:
name: int-tests
version: 0.1.0.0
synopsis: Integration Tests Suite
description: Integration Tests Suite
license: AllRightsReserved
author: Author name here
maintainer: example#example.com
copyright: 2018 Author name here
build-type: Custom
extra-source-files: README.md
cabal-version: >=1.10
library
hs-source-dirs: common
exposed-modules: Common
build-depends: base
, text
, aeson
, network-uri
default-language: Haskell2010
ghc-options: -Wall -Werror
executable api-tests-exe
hs-source-dirs: api
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall -Werror
build-depends: base
, hspec
, QuickCheck
default-language: Haskell2010
executable e2e-tests-exe
hs-source-dirs: e2e
main-is: Main.hs
ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall -Werror
build-depends: base
, hspec
, QuickCheck
default-language: Haskell2010
and when I call stack ide targets I don't see these 2 targets. So, stack build api-tests and stack build e2e-tests don't work too.
How can I create 2 targets' project for stack? I tried also package.yaml but result is the same. Stack version is 1.9.1. I have folders tree like:
api/
...
e2e/
...
where are Main.hs files with content like:
module Main (main) where
main :: IO ()
main = print "Hello"
Also I tried option -main-is Main but without success.
Error looks like:
Error: While constructing the build plan, the following exceptions were encountered:
Unknown package: api-tests
AFAIK, stack build always builds all your targets. But if you want to be run just one executable, you'll need the full name including the -exe. So, stack exec api-tests-exe and stack exec e2e-tests-exe.
But what you really want to do is make these test targets: https://www.haskell.org/cabal/users-guide/developing-packages.html#test-suites
Problem was in stack.yaml file, I had to add '.' folder to "packages:" section.
I want to use System.Directory in emacs with Haskell mode and Intero, While the on the fly check warns that Couldn't find module System.Directory. So I add some dependencies in my cabal file. And the warning doesn't disappear while the stack build successfully executed.
Below is my cabal file:
-- This file has been generated from package.yaml by hpack version 0.28.2.
--
-- see: https://github.com/sol/hpack
--
-- hash: 536b5f6ecaaec7d4b7a9694c8f69bbe648a1d21d80fa721e533ac5b139955401
name: find
version: 0.1.0.0
description: Please see the README on GitHub at <https://github.com/Handora/find#readme>
homepage: https://github.com/Handora/find#readme
bug-reports: https://github.com/Handora/find/issues
author: Handora
maintainer: qcdsr970209#gmail.com
copyright: Qian Chen
license: BSD3
license-file: LICENSE
build-type: Simple
cabal-version: >= 1.10
extra-source-files:
ChangeLog.md
README.md
source-repository head
type: git
location: https://github.com/Handora/find
library
exposed-modules:
Lib
RecursiveContents
other-modules:
Paths_find
hs-source-dirs:
src
build-depends:
base >=4.7 && <5
, directory
default-language: Haskell2010
executable find-exe
main-is: Main.hs
other-modules:
Paths_find
hs-source-dirs:
app
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, find
, directory
default-language: Haskell2010
test-suite find-test
type: exitcode-stdio-1.0
main-is: Spec.hs
other-modules:
Paths_find
hs-source-dirs:
test
ghc-options: -threaded -rtsopts -with-rtsopts=-N
build-depends:
base >=4.7 && <5
, find
default-language: Haskell2010
I add the directory into build dependencies and executable build dependencies. So my question is how to make the System.Directory visible to Intero, so the warnings can disappear.
You can get it to show up by running intero-restart.
There may be a "more correct" way, but this works.
I'm trying to build a package with a single test suite:
name: test
version: 0.1.0.0
build-type: Simple
cabal-version: >=1.10
library
-- exposed-modules:
build-depends: base
hs-source-dirs: src
default-language: Haskell2010
Test-Suite tests
type: detailed-0.9
test-module: Tests
build-depends: base, Cabal
hs-source-dirs: tests
default-language: Haskell2010
Here's what happens:
PS C:\temporary\test> cabal configure --enable-tests
Resolving dependencies...
Configuring test-0.1.0.0...
PS C:\temporary\test> cabal build
Building test-0.1.0.0...
Preprocessing library test-0.1.0.0...
In-place registering test-0.1.0.0...
Preprocessing test suite 'tests' for test-0.1.0.0...
[1 of 1] Compiling Tests ( tests\Tests.hs, dist\build\Tests.o )
C:\Program Files\Haskell Platform\2014.2.0.0\mingw\bin\ar.exe: dist\build\Tests.o: No such file or directory
PS C:\temporary\test>
I'm using Windows 8.1 64-bit, with Haskell Platform 2014.2.0.0. I have installed MSYS, and the only MinGW on the path is GHC's. Also, all git binaries are after MSYS and MinGW on the path so they do not conflict. Any advice is appreciated.
Update: It appears that building tests works fine when using type: exitcode-stdio-1.0.