Fails to compile wrapper with a stack cradle

[ndmitchell]

When I try with 0.3.0 I get:

c:\Neil\ghcide>ghcide Sample.hs
ghcide version: 0.0.5 (GHC: 8.6.5)
Ghcide setup tester in c:\Neil\ghcide.
Report bugs at https://github.com/digital-asset/ghcide/issues

Step 1/6: Finding files to test in c:\Neil\ghcide
Found 1 files

Step 2/6: Looking for hie.yaml files that control setup
Found 1 cradle

Step 3/6, Cradle 1/1: Loading .\hie.yaml

Step 4/6, Cradle 1/1: Loading GHC Session
'stty' is not recognized as an internal or external command,
operable program or batch file.
C:\Users\ndmit_000\AppData\Local\Programs\stack\x86_64-windows\ghc-8.0.2\lib\package.conf.d\package.cache: GHC.PackageDb.readPackageDb: inappropriate type (Not a valid Unicode code point!)
ghcide.exe: readCreateProcess: stack "exec" "ghc" "--" "-o" "C:\\Users\\ndmit_000\\AppData\\Local\\hie-bios\\wrapper-0.3.0.exe" "C:\\Users\\NDMIT_~1\\AppData\\Local\\Temp\\wrapper-0.3.0.hs" (exit 1): failed

It seems that somehow stack exec ghc has managed to grab my 8.0.2 version of Stack. That's odd, as when I run stack exec ghc on the command line it works just fine. It's not clear what directory or environment variables you are running it under, but they don't seem happy ones.

[mpickering]

Where is the hie.yaml file located? @fendor can you take a look please?

[ndmitchell]

This was using ghcide as my example, so just in the ghcide repo typing ghcide. It currently reads cradle: {stack} - but adding/removing component didn't seem to help (this is compiling the wrapper before it gets that far).

[fendor]

The environment variables are all the same for each cradle.
If they arent set via a function parameter, which they never are, and they arent already defined in the environement, they are set to "ghc" and "", respectively for $HIE_BIOS_GHC and $HIE_BIOS_GHC_ARGS.
I thought that this maintained the same behaviour as before.

[fendor]

The problem, regarding hie-bios picking up the ghc 8.0.2 version, seems to be that the stack exec ghc -- * command, which is used to compile the wrapper_hs, is executed in the directory of the wrapper_hs file, which is in some temporary directory. Therefore, the global project compiler is used.

[fendor]

This issue ought to be fixed by #112