chore: formatting and cleanup

.gitignore

@@ -13,3 +13,39 @@ devenv.local.nix
 
 /target
 /**/*.input
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml
+# Devenv
+.devenv*
+devenv.local.nix
+
+# direnv
+.direnv
+
+# pre-commit
+.pre-commit-config.yaml

devenv.lock

@@ -3,10 +3,10 @@
     "devenv": {
       "locked": {
         "dir": "src/modules",
-        "lastModified": 1733788855,
+        "lastModified": 1737028622,
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "d59fee8696cd48f69cf79f65992269df9891ba86",
+        "rev": "4e5b00134bf03f16af6b25b80abb38c598cfe239",
         "type": "github"
       },
       "original": {
@@ -66,35 +66,19 @@
         "type": "github"
       }
     },
-    "nixpkgs-stable": {
-      "locked": {
-        "lastModified": 1733730953,
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "7109b680d161993918b0a126f38bc39763e5a709",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-24.05",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "pre-commit-hooks": {
       "inputs": {
         "flake-compat": "flake-compat",
         "gitignore": "gitignore",
         "nixpkgs": [
           "nixpkgs"
-        ],
-        "nixpkgs-stable": "nixpkgs-stable"
+        ]
       },
       "locked": {
-        "lastModified": 1733665616,
+        "lastModified": 1737043064,
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "d8c02f0ffef0ef39f6063731fc539d8c71eb463a",
+        "rev": "94ee657f6032d913fe0ef49adaa743804635b0bb",
         "type": "github"
       },
       "original": {

devenv.nix

@@ -25,10 +25,7 @@
     hello
     git --version
   '';
-
-  languages = {
-    rust.enable = true;
-  };
+  languages.rust.enable = true;
   # https://devenv.sh/tasks/
   # tasks = {
   #   "myproj:setup".exec = "mytool build";

src/day3.rs

@@ -1,6 +1,8 @@
 use std::fs;
 fn check_mul(instruction: &str) -> bool {
-    if instruction.find(',').is_none() { return false; }
+    if instruction.find(',').is_none() {
+        return false;
+    }
     let (first_part, second_part) = instruction.split_once(',').expect("Expected mul to split");
     let first_num = &first_part[4..];
     let second_num = &second_part[..second_part.len() - 1];
@@ -32,7 +34,11 @@ pub fn part1(input_file_path: &str) {
         let end_index = tmp.find(')').expect("expected a closure");
         let trim_str = tmp.split_at(end_index + 1).0;
         println!("{}", trim_str);
-        total += if check_mul(trim_str) {eval_mul(trim_str)} else {0};
+        total += if check_mul(trim_str) {
+            eval_mul(trim_str)
+        } else {
+            0
+        };
     });
     println!("Eval result: {}", total);
 }