commit 95d3c592cac40ae8b2eeb7cb1872a3e5f1c1f979
Author: Anthony Cicchetti <acicchetti@jellyfish.co>
Date:   Wed Nov 29 10:45:14 2023 -0500

    init

diff --git a/.build.yml b/.build.yml
new file mode 100644
index 0000000..5010e03
--- /dev/null
+++ b/.build.yml
@@ -0,0 +1,5 @@
+image: nixos/unstable
+tasks:
+  - test: |
+      cd advent_of_code_2023
+      nix --extra-experimental-features 'nix-command flakes' flake check
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8ea0ee8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+result*
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..4987c0d
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,189 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "advent_of_code_2023"
+version = "0.1.0"
+
+[[package]]
+name = "anstream"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ab91ebe16eb252986481c5b62f6098f3b698a45e34b5b98200cf20dd2484a44"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7079075b41f533b8c61d2a4d073c4676e1f8b249ff94a393b0595db304e0dd87"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "317b9a89c1868f5ea6ff1d9539a69f45dffc21ce321ac1fd1160dfa48c8e2140"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ca11d4be1bab0c8bc8734a9aa7bf4ee8316d462a08c6ac5052f888fef5b494b"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0699d10d2f4d628a98ee7b57b289abbc98ff3bad977cb3152709d4bf2330628"
+dependencies = [
+ "anstyle",
+ "windows-sys",
+]
+
+[[package]]
+name = "clap"
+version = "4.4.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41fffed7514f420abec6d183b1d3acfd9099c79c3a10a06ade4f8203f1411272"
+dependencies = [
+ "clap_builder",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "63361bae7eef3771745f02d8d892bec2fee5f6e34af316ba556e7f97a7069ff1"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "702fc72eb24e5a1e48ce58027a675bc24edd52096d5397d4aea7c6dd9eca0bd1"
+
+[[package]]
+name = "cli"
+version = "0.1.0"
+dependencies = [
+ "clap",
+ "common",
+ "day_01",
+]
+
+[[package]]
+name = "colorchoice"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+
+[[package]]
+name = "common"
+version = "0.1.0"
+dependencies = [
+ "clap",
+]
+
+[[package]]
+name = "day_01"
+version = "0.1.0"
+dependencies = [
+ "common",
+]
+
+[[package]]
+name = "strsim"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+
+[[package]]
+name = "utf8parse"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..17ac2dd
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "advent_of_code_2023"
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[workspace]
+members = ['common', 'cli']
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
new file mode 100644
index 0000000..2cd1d18
--- /dev/null
+++ b/cli/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "cli"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { version = "4" }
+common = { path = "../common" }
+day_01 = { path = "../day_01" }
diff --git a/cli/src/main.rs b/cli/src/main.rs
new file mode 100644
index 0000000..0cd4948
--- /dev/null
+++ b/cli/src/main.rs
@@ -0,0 +1,42 @@
+use std::{error::Error, fs};
+
+use clap::{ArgGroup, Parser};
+use common::{Day, Part};
+
+#[derive(Parser, Debug)]
+#[command(about)]
+#[command(group(
+ArgGroup::new("input").required(true).args(["input_file", "input_str"])))]
+struct Args {
+    #[arg(short, long)]
+    day: Day,
+    #[arg(short, long)]
+    part: Part,
+
+    #[arg(short = 'f', long)]
+    input_file: Option<String>,
+
+    input_str: Option<String>,
+}
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let cli = Args::parse();
+
+    let input_str = if let Some(inp) = cli.input_file.as_deref() {
+        fs::read_to_string(Path::new(inp))?
+    } else {
+        cli.input_str.unwrap()
+    };
+
+    match (cli.day, cli.part) {
+        (day @ Day::One, part @ Part::One) => {
+            println!("{}", day_01::run_day_and_part(day, part, input_str));
+            Ok(())
+        }
+
+        #[allow(unreachable_patterns)]
+        (_, _) => {
+            unimplemented!()
+        }
+    }
+}
diff --git a/common/Cargo.toml b/common/Cargo.toml
new file mode 100644
index 0000000..309c3e1
--- /dev/null
+++ b/common/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "common"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = {version = "4.4.10"}
diff --git a/common/src/lib.rs b/common/src/lib.rs
new file mode 100644
index 0000000..723af66
--- /dev/null
+++ b/common/src/lib.rs
@@ -0,0 +1,12 @@
+use clap::ValueEnum;
+
+#[derive(ValueEnum, Clone, Copy, Debug)]
+pub enum Day {
+    One,
+}
+
+#[derive(ValueEnum, Copy, Clone, Debug)]
+pub enum Part {
+    One,
+    Two,
+}
diff --git a/day_01/Cargo.toml b/day_01/Cargo.toml
new file mode 100644
index 0000000..a7eaaad
--- /dev/null
+++ b/day_01/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "day_01"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+common = {path = "../common"}
diff --git a/day_01/src/lib.rs b/day_01/src/lib.rs
new file mode 100644
index 0000000..58aea6f
--- /dev/null
+++ b/day_01/src/lib.rs
@@ -0,0 +1,7 @@
+use common::{Day, Part};
+
+pub fn run_day_and_part(day: Day, part: Part, inp: String) -> Result<(), ()> {
+    match (day, part) {
+        (Day::One, Part::One) => Ok(()),
+    }
+}
diff --git a/deny.toml b/deny.toml
new file mode 100644
index 0000000..b951a73
--- /dev/null
+++ b/deny.toml
@@ -0,0 +1,4 @@
+[licenses]
+allow = [
+  "MIT"
+]
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..7fc3d4f
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,121 @@
+{
+  "nodes": {
+    "advisory-db": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1701193254,
+        "narHash": "sha256-Hr7efA3GjwqBkGYKmd3XmGckdPQikbcCmOrq7fmTp3A=",
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "rev": "43af5fef0591531a72ebb86c5f1c623ee95c62fe",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rustsec",
+        "repo": "advisory-db",
+        "type": "github"
+      }
+    },
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1701220101,
+        "narHash": "sha256-EBuCZ/Vjp3ovx8ZvfALfuUk4/76Ey/6cJmzmeXBRmDk=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "514cd663e5af505a244e55ad013733638574aff9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": []
+      },
+      "locked": {
+        "lastModified": 1701238978,
+        "narHash": "sha256-CL3RjhwV47ZI9oWRpezS2eP0mhiyqpOGb3GBMOcF2w4=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "22e61fab6d93cfce2b9659bb7734762ad6a7cf11",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1701174899,
+        "narHash": "sha256-1W+FMe8mWsJKXoBc+QgKmEeRj33kTFnPq7XCjU+bfnA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "010c7296f3b19a58b206fdf7d68d75a5b0a09e9e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "advisory-db": "advisory-db",
+        "crane": "crane",
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..ef047eb
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,138 @@
+{
+  description = "Build a cargo project";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    crane = {
+      url = "github:ipetkov/crane";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.rust-analyzer-src.follows = "";
+    };
+
+    flake-utils.url = "github:numtide/flake-utils";
+
+    advisory-db = {
+      url = "github:rustsec/advisory-db";
+      flake = false;
+    };
+  };
+
+  outputs = { self, nixpkgs, crane, fenix, flake-utils, advisory-db, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+
+        inherit (pkgs) lib;
+
+        craneLib = crane.lib.${system};
+        src = craneLib.cleanCargoSource (craneLib.path ./.);
+
+        # Common arguments can be set here to avoid repeating them later
+        commonArgs = {
+          inherit src;
+          strictDeps = true;
+
+          buildInputs = [
+            # Add additional build inputs here
+          ] ++ lib.optionals pkgs.stdenv.isDarwin [
+            # Additional darwin specific inputs can be set here
+            pkgs.libiconv
+          ];
+
+          # Additional environment variables can be set directly
+          # MY_CUSTOM_VAR = "some value";
+        };
+
+        craneLibLLvmTools = craneLib.overrideToolchain
+          (fenix.packages.${system}.complete.withComponents [
+            "cargo"
+            "llvm-tools"
+            "rustc"
+          ]);
+
+        # Build *just* the cargo dependencies, so we can reuse
+        # all of that work (e.g. via cachix) when running in CI
+        cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+        # Build the actual crate itself, reusing the dependency
+        # artifacts from above.
+        my-crate = craneLib.buildPackage (commonArgs // {
+          inherit cargoArtifacts;
+        });
+      in
+      {
+        checks = {
+          # Build the crate as part of `nix flake check` for convenience
+          inherit my-crate;
+
+          # Run clippy (and deny all warnings) on the crate source,
+          # again, resuing the dependency artifacts from above.
+          #
+          # Note that this is done as a separate derivation so that
+          # we can block the CI if there are issues here, but not
+          # prevent downstream consumers from building our crate by itself.
+          my-crate-clippy = craneLib.cargoClippy (commonArgs // {
+            inherit cargoArtifacts;
+            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+          });
+
+          my-crate-doc = craneLib.cargoDoc (commonArgs // {
+            inherit cargoArtifacts;
+          });
+
+          # Check formatting
+          my-crate-fmt = craneLib.cargoFmt {
+            inherit src;
+          };
+
+          # Audit dependencies
+          my-crate-audit = craneLib.cargoAudit {
+            inherit src advisory-db;
+          };
+
+          # Audit licenses
+          my-crate-deny = craneLib.cargoDeny {
+            inherit src;
+          };
+
+          # Run tests with cargo-nextest
+          # Consider setting `doCheck = false` on `my-crate` if you do not want
+          # the tests to run twice
+          my-crate-nextest = craneLib.cargoNextest (commonArgs // {
+            inherit cargoArtifacts;
+            partitions = 1;
+            partitionType = "count";
+          });
+        };
+
+        packages = {
+          default = my-crate;
+          my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
+            inherit cargoArtifacts;
+          });
+        };
+
+        apps.default = flake-utils.lib.mkApp {
+          drv = my-crate;
+        };
+
+        devShells.default = craneLib.devShell {
+          # Inherit inputs from checks.
+          checks = self.checks.${system};
+
+          # Additional dev-shell environment variables can be set directly
+          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+          # Extra inputs can be added here; cargo and rustc are provided by default.
+          packages = [
+            # pkgs.ripgrep
+          ];
+        };
+      });
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..e7a11a9
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}