matrix-media-expanded/flake.nix
2023-04-26 21:47:22 -04:00

106 lines
3.6 KiB
Nix

{
description = "srid/haskell-template: Nix template for Haskell projects";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
systems.url = "github:nix-systems/default";
flake-parts.url = "github:hercules-ci/flake-parts";
haskell-flake.url = "github:srid/haskell-flake";
treefmt-nix.url = "github:numtide/treefmt-nix";
treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
flake-root.url = "github:srid/flake-root";
mission-control.url = "github:Platonic-Systems/mission-control";
};
outputs = inputs@{ self, nixpkgs, flake-parts, ... }:
flake-parts.lib.mkFlake { inherit inputs; } {
systems = import inputs.systems;
imports = [
inputs.haskell-flake.flakeModule
inputs.treefmt-nix.flakeModule
inputs.flake-root.flakeModule
inputs.mission-control.flakeModule
];
perSystem = { self', system, lib, config, pkgs, ... }: {
# Our only Haskell project. You can have multiple projects, but this template
# has only one.
# See https://github.com/srid/haskell-flake/blob/master/example/flake.nix
haskellProjects.default = {
# packages.haskell-template.root = ./.; # Auto-discovered by haskell-flake
overrides = self: super: { };
devShell = {
tools = hp: {
treefmt = config.treefmt.build.wrapper;
} // config.treefmt.build.programs;
hlsCheck.enable = true;
};
autoWire = [ "packages" "apps" "checks" ]; # Wire all but the devShell
};
# Auto formatters. This also adds a flake check to ensure that the
# source tree was auto formatted.
treefmt.config = {
inherit (config.flake-root) projectRootFile;
package = pkgs.treefmt;
flakeFormatter = false; # For https://github.com/numtide/treefmt-nix/issues/55
programs.ormolu.enable = true;
programs.nixpkgs-fmt.enable = true;
programs.cabal-fmt.enable = true;
programs.hlint.enable = true;
# We use fourmolu
programs.ormolu.package = pkgs.haskellPackages.fourmolu;
settings.formatter.ormolu = {
options = [
"--ghc-opt"
"-XImportQualifiedPost"
];
};
};
# Dev shell scripts.
mission-control.scripts = {
docs = {
description = "Start Hoogle server for project dependencies";
exec = ''
echo http://127.0.0.1:8888
hoogle serve -p 8888 --local
'';
category = "Dev Tools";
};
repl = {
description = "Start the cabal repl";
exec = ''
cabal repl "$@"
'';
category = "Dev Tools";
};
fmt = {
description = "Format the source tree";
exec = config.treefmt.build.wrapper;
category = "Dev Tools";
};
run = {
description = "Run the project with ghcid auto-recompile";
exec = ''
ghcid -c "cabal repl exe:haskell-template" --warnings -T :main
'';
category = "Primary";
};
};
# Default package & app.
packages.default = self'.packages.haskell-template;
apps.default = self'.apps.haskell-template;
# Default shell.
devShells.default = pkgs.mkShell {
inputsFrom = [
config.haskellProjects.default.outputs.devShell
config.flake-root.devShell
config.mission-control.devShell
];
};
};
};
}