beam database (unfinished), overloadedRecordDot, fourmolu, relude

also one fix where the "skip voting and see results" link is broken.
2025-08-25 07:54:36 -07:00 · 2025-08-25 07:54:36 -07:00 · cee339a8ed
commit cee339a8ed
parent 123bbe79b5
11 changed files with 438 additions and 102 deletions
--- a/flake.nix
+++ b/flake.nix
@ -1,43 +1,128 @@
-# SPDX-FileCopyrightText: 2021 Serokell <https://serokell.io/>
-#
-# SPDX-License-Identifier: CC0-1.0
-
 {
-  description = "My haskell application";
-
+  description = "srid/haskell-template: Nix template for Haskell projects";
  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs";
-    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-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";
+    # tmp-postgres.url = "github:jfischoff/tmp-postgres";
+    # tmp-postgres.flake = false;
+    mission-control.url = "github:Platonic-Systems/mission-control";
+    flake-root.url = "github:srid/flake-root";
  };

-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = nixpkgs.legacyPackages.${system};
+  outputs = inputs:
+    inputs.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 = {
+          # The base package set (this value is the default)
+          # basePackages = pkgs.haskellPackages.ghc_9_12_1;

-        haskellPackages = pkgs.haskellPackages;
-
-        jailbreakUnbreak = pkg:
-          pkgs.haskell.lib.doJailbreak (pkg.overrideAttrs (_: { meta = { }; }));
-
-        # DON'T FORGET TO PUT YOUR PACKAGE NAME HERE, REMOVING `throw`
-        packageName = "rcv-site";
-      in {
-        packages.${packageName} =
-          haskellPackages.callCabal2nix packageName self rec {
-            # Dependency overrides go here
+          # Packages to add on top of `basePackages`
+          packages = {
+            # Add source or Hackage overrides here
+            # (Local packages are added automatically)
+            # https://github.com/lehins/hip.git
+            # hip.source = inputs.hip + "/hip";
+            # tmp-postgres.source = inputs.tmp-postgres;
          };

-        packages.default = self.packages.${system}.${packageName};
-        defaultPackage = self.packages.${system}.default;
+          # Add your package overrides here
+          settings = {

-        devShells.default = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            haskellPackages.haskell-language-server # you must build it with your ghc to work
-            cabal-install
-          ];
-          inputsFrom = map (__getAttr "env") (__attrValues self.packages.${system});
+
+            # tmp-postgres.check = false;
+
+            # beam-migrate = {
+            #   broken = false;
+            #   jailbreak = true;
+            # };
+
+            # beam-postgres = {
+            #   broken = false;
+            #   jailbreak = true;
+            # };
+            # barbies-th = {
+            #   broken = false;
+            #   jailbreak = true;
+            # };
+          };
+
+          # Development shell configuration
+          devShell = {
+            # hlsCheck.enable = false;
+          };
+
+          # What should haskell-flake add to flake outputs?
+          autoWire = [ "packages" "apps" "checks" ]; # Wire all but the devShell
        };
-        devShell = self.devShells.${system}.default;
-      });
+
+        # Auto formatters. This also adds a flake check to ensure that the
+        # source tree was auto formatted.
+        treefmt.config = {
+          projectRootFile = "flake.nix";
+
+          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;
+        };
+
+        mission-control.scripts = {
+          hoogle = {
+            description = "Start Hoogle server for project dependencies";
+            exec = ''
+              hoogle serve -p 8888 --local;
+            '';
+            category = "Dev Tools";
+          };
+
+          haddocks = {
+            description = "make docs & serve them";
+            exec = ''
+              echo http://127.0.0.1:8887;
+              cabal haddock-project --executables --internal --hoogle || true;
+              python3 -m http.server -d haddocks 8887;
+            '';
+            category = "Dev Tools";
+          };
+
+        };
+
+
+
+        # Default package & app.
+        packages.default = self'.packages.rcv-site;
+        apps.default = self'.apps.rcv-site;
+
+        # Default shell.
+        devShells.default = pkgs.mkShell {
+          name = "haskell-template";
+          meta.description = "Haskell development environment";
+          # See https://zero-to-flakes.com/haskell-flake/devshell#composing-devshells
+          inputsFrom = [
+            config.haskellProjects.default.outputs.devShell
+            config.treefmt.build.devShell
+            config.mission-control.devShell
+          ];
+          nativeBuildInputs = with pkgs; [
+          ];
+        };
+      };
+    };
 }