Multiple .cabal files found in directory

[creichert]

Multiple .cabal files found in directory /home/christopher/dev/rbros/assertible/.stack-work/downloaded/Po3M4t2NzhXM/: Po3M4t2NzhXM.cabal, reserve.cabal

I realize this issue has been opened before but I seem to experience it only on a specific package reserve. I think this might be due to the fact that there is a cabal file in addition to an hpack package.yaml file but I'm not certain as I don't use hpack.

I've tried to provide as much info below as possible.

Steps to reproduce:

1. Create new project

   $ stack new test

2. Update the stack.yaml

Use this content:

resolver: nightly-2016-06-02
flags: {}
extra-deps:
  - http-kit-0.5.1
  # https://github.com/snoyberg/http-client/issues/196
  - tls-1.3.7

packages:
  - '.'
  - location:
      git: https://github.com/sol/reserve.git
      commit: HEAD
    extra-dep: true

1. Run stack test

You should see:

Multiple .cabal files found in directory /home/christopher/dev/rbros/assertible/.stack-work/downloaded/Po3M4t2NzhXM/: Po3M4t2NzhXM.cabal, reserve.cabal

If I don't use an explicit packages entry for reserve, it works.

Here is the stack --version output:

$ stack --version
Version 1.1.3, Git revision 7669717 x86_64 hpack-0.14.0

Here is the command I ran with --verbose:

stack test --verbose
Version 1.1.3, Git revision 7669717b38b6cb9d54bc839c5583819095de3cb8 x86_64 hpack-0.14.0
2016-06-07 19:56:02.237376: [debug] Checking for project config at: /home/christopher/dev/haskell/test/stack.yaml @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Config src/Stack/Config.hs:823:9)
2016-06-07 19:56:02.237531: [debug] Loading project config file stack.yaml @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Config src/Stack/Config.hs:841:13)
2016-06-07 19:56:02.238657: [debug] Checking whether stack was built with libgmp4 @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Config src/Stack/Config.hs:327:5)
2016-06-07 19:56:02.238723: [debug] Run process: ldd /home/christopher/.cabal/bin/stack @(stack_0wyO5SXLQRo4g09I2zgdw7:System.Process.Read src/System/Process/Read.hs:291:3)
2016-06-07 19:56:02.245825: [debug] Stack was not built with libgmp4 @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Config src/Stack/Config.hs:331:14)
2016-06-07 19:56:02.245913: [debug] Trying to decode /home/christopher/.stack/build-plan-cache/x86_64-linux/nightly-2016-06-02.cache @(stack_0wyO5SXLQRo4g09I2zgdw7:Data.Store.VersionTagged src/Data/Store/VersionTagged.hs:51:5)
2016-06-07 19:56:02.248138: [debug] Success decoding /home/christopher/.stack/build-plan-cache/x86_64-linux/nightly-2016-06-02.cache @(stack_0wyO5SXLQRo4g09I2zgdw7:Data.Store.VersionTagged src/Data/Store/VersionTagged.hs:60:13)
2016-06-07 19:56:02.249523: [debug] Getting system compiler version @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Setup src/Stack/Setup.hs:341:17)
2016-06-07 19:56:02.250007: [debug] Asking GHC for its version @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Setup.Installed src/Stack/Setup/Installed.hs:97:13)
2016-06-07 19:56:02.250045: [debug] Run process: ghc --numeric-version @(stack_0wyO5SXLQRo4g09I2zgdw7:System.Process.Read src/System/Process/Read.hs:291:3)
2016-06-07 19:56:02.271711: [debug] Getting Cabal package version @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.GhcPkg src/Stack/GhcPkg.hs:165:5)
2016-06-07 19:56:02.271809: [debug] Run process: ghc-pkg --no-user-package-db field --simple-output Cabal version @(stack_0wyO5SXLQRo4g09I2zgdw7:System.Process.Read src/System/Process/Read.hs:291:3)
2016-06-07 19:56:02.286168: [debug] Resolving package entries @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Setup src/Stack/Setup.hs:221:5)
2016-06-07 19:56:02.286681: [debug] Run process: git reset --hard 88b020e52b5d42c8c68740bd5f62614dd293e85b -- @(stack_0wyO5SXLQRo4g09I2zgdw7:System.Process.Read src/System/Process/Read.hs:291:3)
2016-06-07 19:56:02.288476: [debug] Getting global package database location @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.GhcPkg src/Stack/GhcPkg.hs:48:5)
2016-06-07 19:56:02.288531: [debug] Run process: ghc-pkg --no-user-package-db list --global @(stack_0wyO5SXLQRo4g09I2zgdw7:System.Process.Read src/System/Process/Read.hs:291:3)
2016-06-07 19:56:02.301162: [debug] Running hpack on /home/christopher/dev/haskell/test/.stack-work/downloaded/z7D7RJbs2EVM/package.yaml @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Package src/Stack/Package.hs:1147:9)
2016-06-07 19:56:02.302755: [debug] hpack output unchanged in /home/christopher/dev/haskell/test/.stack-work/downloaded/z7D7RJbs2EVM/z7D7RJbs2EVM.cabal @(stack_0wyO5SXLQRo4g09I2zgdw7:Stack.Package src/Stack/Package.hs:1154:38)
Multiple .cabal files found in directory /home/christopher/dev/haskell/test/.stack-work/downloaded/z7D7RJbs2EVM/: reserve.cabal, z7D7RJbs2EVM.cabal

[mgsloan]

Interesting! The issue is that if the package name is omitted, then hpack bases it on the directory name. I've opened sol/hpack#109 about this.

I've also opened #2255 discussing only running hpack on local packages.

[sol]

@creichert this can easily be fixed in reserve by specifying the package name in package.yaml. PRs please.