day 1: init

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
2025-12-02 01:03:20 +05:30
commit ca13039cd3
11 changed files with 284 additions and 0 deletions
--- a/flake.nix
+++ b/flake.nix
@@ -0,0 +1,54 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    haskell-flake.url = "github:srid/haskell-flake";
+  };
+
+  outputs =
+    inputs@{
+      self,
+      nixpkgs,
+      flake-parts,
+      ...
+    }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = nixpkgs.lib.systems.flakeExposed;
+      imports = [ inputs.haskell-flake.flakeModule ];
+
+      perSystem =
+        { self', pkgs, ... }:
+        {
+          formatter = pkgs.nixfmt-tree;
+
+          haskellProjects.default = {
+            basePackages = pkgs.haskellPackages;
+            devShell = {
+              enable = true;
+              hlsCheck.enable = true;
+
+              tools = hp: {
+                inherit (pkgs)
+                  nixpkgs-fmt
+                  ;
+                inherit (hp)
+                  cabal-fmt
+                  fourmolu
+                  ;
+              };
+            };
+          };
+
+          packages.default = self'.packages.aoc2024;
+          apps =
+            let
+              name = n: "day${(if n < 10 then "0" else "") + toString n}";
+            in
+            with pkgs.lib;
+            genAttrs (map name (range 1 1)) (n: {
+              type = "app";
+              program = "${self'.packages.aoc2025}/bin/${n}";
+            });
+        };
+    };
+}