Preparing for AoC24

.gitignore

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+result*
+*.cabal

Main.hs

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+{-# OPTIONS_GHC -Wno-unused-imports #-}
+
+module Main where
+
+import Day1
+
+main :: IO ()
+main = do
+  putStrLn "AoC 2024"
+  putStrLn "Day 1"
+  Day1.main
+

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1,
+        "narHash": "sha256-y/MEyuJ5oBWrWAic/14LaIr/u5E0wRVzyYsouYY3W6w=",
+        "path": "/nix/store/zx63r1p2sg7w4vicnxlmh2assabvpzc7-c9wv7i0af6mysmy65x6nvyfw5izzxv4g-source",
+        "type": "path"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A Hello World for AoC";
+  inputs.nixpkgs.url = "nixpkgs";
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+      nixpkgsFor = forAllSystems (system: import nixpkgs {
+        inherit system;
+        overlays = [ self.overlay ];
+      });
+    in
+    {
+      overlay = (final: prev: {
+        aoc24 = final.haskellPackages.callCabal2nix "aoc24" ./. {};
+      });
+      packages = forAllSystems (system: {
+         aoc24 = nixpkgsFor.${system}.aoc24;
+      });
+      defaultPackage = forAllSystems (system: self.packages.${system}.aoc24);
+      checks = self.packages;
+      devShell = forAllSystems (system: let haskellPackages = nixpkgsFor.${system}.haskellPackages;
+        in haskellPackages.shellFor {
+          packages = p: [self.packages.${system}.aoc24];
+          withHoogle = true;
+          buildInputs = with haskellPackages; [
+            haskell-language-server
+            ghcid
+            cabal-install
+          ];
+        # Change the prompt to show that you are in a devShell
+        shellHook = ''
+          hpack
+        '';
+        });
+  };
+}

package.yaml

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+name: aoc24
+
+ghc-options: -Wall -threaded #-prof -fprof-auto -rtsopts
+
+default-extensions:
+  - OverloadedStrings
+
+dependencies:
+  - base == 4.*
+  - attoparsec
+  - bytestring
+  - matrix
+  - vector
+  - containers
+
+executables:
+  aoc24:
+    main: Main.hs
+    dependencies:
+      - aoc24
+
+library:
+  source-dirs: src
+  exposed-modules:
+    - Day1
+    # - Day2
+    # - Day3
+    # - Day4
+    # - Day5
+    # - Day6
+    # - Day7
+    # - Day8
+    # - Day9
+    # - Day10
+    # - Day11
+    # - Day12
+    # - Day13
+    # - Day14
+    # - Day15
+    # - Day16
+    # - Day17
+    # - Day18
+    # - Day19
+    # - Day20
+    # - Day21
+    # - Day22
+    # - Day23
+    # - Day24
+    # - Day25

src/Day1.hs

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+{-# LANGUAGE OverloadedStrings #-}
+
+module Day1 where
+
+main :: IO ()
+main = do
+  putStrLn "Part 1"
+  putStrLn "Part 2"