Can't build using stack v1.4 and nix (nixos)

[dfordivam]

With this update to stack you will get the below error

"You cannot have packages and a shell-file filled at the same time in your nix-shell configuration."

Support reproducible builds via Nix (v1.4)
commercialhaskell/stack@931cb02

[ethercrow]

Works for me with stack-1.4.0 on macOS. Do you have to have nix installed to trigger the issue?

[dfordivam]

Yes it is specific to nix... and if you have nixos, you just cannot build yi...

[Fuuzetsu]

we don't have packages in top level stack.yaml, I suspect this ticket is out of date.

[dfordivam]

I still see packages in stack.yaml... and the issue with build is still there...

flags: {}
nix:
shell-file: shell.nix
packages:

• yi-core
• yi-dynamic-configuration
• yi-frontend-vty

[dfordivam]

How am I supposed to build yi ?
do a stack build at top level?

[dfordivam]

Some update..
I did nix-shell in top directory to enter the shell with required dependencies, then modified the yi/stack.yaml and added the local packages as in it. (like ../yi-core etc)
Then I did stack build, and everything seems to go on fine, until I hit the issue #931
I tried LANG=C stack build, but it did not help.

So I guess even if this issue is solved, I would still not be able to build yi.

[noughtmare]

Maybe you have LC_ALL set? That overrides the LANG option. So the solution then would be LC_ALL=C stack build.

[Fuuzetsu]

somewhat related: yi was disabled in nixpkgs because it doesn't build there anymore; I don't plan to fix it in short term at least.