dev-templates/dhall/flake.nix
Luc Perkins bf45826289
fmt
2022-08-20 14:47:43 +03:00

53 lines
1.3 KiB
Nix

{
description = "A Nix-flake-based Dhall development environment";
inputs = {
flake-utils.url = "github:numtide/flake-utils";
nixpkgs.url = "github:NixOS/nixpkgs";
};
outputs = { self, flake-utils, nixpkgs }:
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = import nixpkgs { inherit system; };
dhall = pkgs.dhall;
inherit (pkgs) mkShell;
inherit (pkgs.lib) optionals;
inherit (pkgs.stdenv) isLinux;
# Helper function for building dhall-* tools
mkDhallTools = ls:
builtins.map (tool: pkgs.haskellPackages."dhall-${tool}") ls;
# dhall-* tools available only on all platforms
dhallToolsCommon = mkDhallTools [
"bash"
"docs"
"json"
"lsp-server"
"nix"
"nixpkgs"
"openapi"
"toml"
"yaml"
];
# dhall-* tools available only on Linux
dhallToolsLinux = optionals isLinux (mkDhallTools [ "csv" "text" ]);
dhallTools = dhallToolsCommon ++ dhallToolsLinux;
in
{
devShells = {
default = mkShell {
buildInputs = [ dhall ] ++ dhallTools;
shellHook = ''
echo "dhall `${dhall}/bin/dhall --version`"
'';
};
};
});
}