Files
petzval/flake.nix

66 lines
2.6 KiB
Nix

{
description = "my project description";
inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
inputs.flake-utils.url = "github:numtide/flake-utils";
outputs = { self, nixpkgs, flake-utils }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = nixpkgs.legacyPackages.${system};
lapack = pkgs.amd-libflame.overrideAttrs (attrs: {
postInstall = attrs.postInstall + "\nln -s $out/lib/libflame.so.${attrs.version} $out/lib/liblapack.so";
});
hPkgs =
pkgs.haskell.packages."ghc925"; # need to match Stackage LTS version
# from stack.yaml resolver
clibs = with pkgs; [
amd-blis lapack
];
myDevTools = [
hPkgs.ghc # GHC compiler in the desired version (will be available on PATH)
hPkgs.ghcid # Continuous terminal Haskell compile checker
#hPkgs.ormolu # Haskell formatter
#hPkgs.hlint # Haskell codestyle checker
hPkgs.hoogle # Lookup Haskell documentation
#hPkgs.haskell-language-server # LSP server for editor
#hPkgs.implicit-hie # auto generate LSP hie.yaml file from cabal
#hPkgs.retrie # Haskell refactoring tool
# hPkgs.cabal-install
stack-wrapped
pkgs.ltrace
] ++ clibs;
# Wrap Stack to work with our Nix integration. We don't want to modify
# stack.yaml so non-Nix users don't notice anything.
# - no-nix: We don't want Stack's way of integrating Nix.
# --system-ghc # Use the existing GHC on PATH (will come from this Nix file)
# --no-install-ghc # Don't try to install GHC if no matching GHC found on PATH
stack-wrapped = pkgs.symlinkJoin {
name = "stack"; # will be available as the usual `stack` in terminal
paths = [ pkgs.stack ];
buildInputs = [ pkgs.makeWrapper ];
postBuild = ''
wrapProgram $out/bin/stack \
--add-flags "\
--no-nix \
--system-ghc \
--no-install-ghc \
"
'';
};
in {
devShells.default = pkgs.mkShell {
buildInputs = myDevTools;
# Make external Nix c libraries like zlib known to GHC, like
# pkgs.haskell.lib.buildStackProject does
# https://github.com/NixOS/nixpkgs/blob/d64780ea0e22b5f61cd6012a456869c702a72f20/pkgs/development/haskell-modules/generic-stack-builder.nix#L38
LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath myDevTools;
};
});
}