Add nix config

.envrc

@@ -0,0 +1 @@
+use flake .

.gitignore

@@ -1 +1,2 @@
-/target
+.direnv/
+target/

.pre-commit-config.yaml

@@ -0,0 +1 @@
+/nix/store/vn4f8qah8fvdmyfs54v6qycg5fbb71mz-pre-commit-config.json

default.nix

@@ -0,0 +1,35 @@
+{ pkgs ? import <nixpkgs> { }
+, stdenv ? pkgs.stdenv
+, lib ? stdenv.lib
+# A set providing `buildRustPackage :: attrsets -> derivation`
+, rustPlatform ? pkgs.rustPlatform
+, fetchFromGitHub ? pkgs.fetchFromGitHub
+, gitignoreSrc ? null
+}:
+
+let
+  gitignoreSource =
+    if gitignoreSrc != null
+    then gitignoreSrc.gitignoreSource
+    else (import (fetchFromGitHub {
+      owner = "hercules-ci";
+      repo = "gitignore";
+      rev = "c4662e662462e7bf3c2a968483478a665d00e717";
+      sha256 = "0jx2x49p438ap6psy8513mc1nnpinmhm8ps0a4ngfms9jmvwrlbi";
+    }) { inherit lib; }).gitignoreSource;
+in
+rustPlatform.buildRustPackage rec {
+  pname = "git-utils";
+  version = "0.1.0";
+
+  src = gitignoreSource ./.;
+
+  nativeBuildInputs = [ pkgconfig ];
+  cargoSha256 = "sha256-0hfmV4mbr3l86m0X7EMYTOu/b+BjueVEbbyQz0KgOFY=";
+
+  meta = with stdenv.lib; {
+    homepage = "";
+    description = "Personal git utilities";
+    license = licenses.mit;
+  };
+}

flake.nix

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+{
+  description = "git-utils flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; # We want to use packages from the binary cache
+    flake-utils.url = "github:numtide/flake-utils";
+    gitignore = { url = "github:hercules-ci/gitignore.nix"; flake = false; };
+    pre-commit-hooks.url = "github:cachix/pre-commit-hooks.nix";
+  };
+
+  outputs = inputs@{ self, nixpkgs, flake-utils, pre-commit-hooks, ... }:
+    (flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        gitignoreSrc = pkgs.callPackage inputs.gitignore { };
+      in rec {
+        packages.app = pkgs.callPackage ./default.nix { inherit gitignoreSrc; };
+
+        legacyPackages = packages;
+
+        defaultPackage = packages.app;
+
+        devShells.default = pkgs.callPackage ./shell.nix {
+          inherit pre-commit-hooks;
+        };
+      })
+    );
+}

shell.nix

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+{ pkgs, pre-commit-hooks }:
+  let
+    pre-commit-check = pre-commit-hooks.lib.${pkgs.system}.run {
+      src = ./.;
+      hooks = {
+        # cargo-check = {
+        #   enable = true;
+        #   name = "cargo-check";
+        #   description = "Check project";
+        #   files = "\.rs$";
+        #   entry = "${pkgs.cargo}/bin/cargo check --all";
+        #   require_serial = true;
+        #   pass_filenames = false;
+        # };
+        rustfmt.enable = true;
+        # clippy.enable = true;
+      };
+    };
+  in
+  pkgs.mkShell {
+    inherit (pre-commit-check) shellHook;
+
+    CARGO_INSTALL_ROOT = "${toString ./.}/.cargo";
+
+    packages = [
+      pkgs.cargo
+      pkgs.clippy
+      pkgs.deno
+      pkgs.ollama
+      pkgs.overmind
+      pkgs.rustc
+      pkgs.rustfmt
+    ];
+  }