Advent of Code Elixir Solutions

Solutions and tests for Advent of Code puzzles.

Built from the template of Jon Zimbel's Elixir template.

Usage

Enable the automatic puzzle input downloader by creating a config/secrets.exs file containing the following:

import Config

config :advent_of_code, AdventOfCode.Input,
  allow_network?: true,
  session_cookie: "..." # paste your AoC session cookie value here

Fetch dependencies with

mix deps.get

Generate a set of solution and test files for a new year of puzzles with

mix advent.gen -y${YEAR}

Now you can run the solutions with

mix advent.solve -d${DAY} -p${1 | 2} [-y${YEAR}] [--bench]

and tests with

mix test

either directly in your local terminal, or in VSCode's terminal pane while connected to the Docker container described below.

Get started coding with zero configuration

Using Visual Studio Code

1. Install Docker Desktop
2. Open project directory in VS Code
3. Press F1, and select Remote-Containers: Reopen in Container...
4. Wait a few minutes as it pulls image down and builds Dev Container Docker image (this should only need to happen once unless you modify the Dockerfile)
   1. You can see progress of the build by clicking Starting Dev Container (show log): Building image that appears in bottom right corner
   2. During the build process it will also automatically run mix deps.get
5. Once complete VS Code will connect your running Dev Container and will feel like your doing local development
6. If you would like to use a specific version of Elixir change the VARIANT version in .devcontainer/devcontainer.json
7. If you would like more information about VS Code Dev Containers check out the dev container documentation

Compatible with Github Codespaces

1. If you don't have Github Codespaces beta access, sign up for the beta https://github.com/features/codespaces/signup
2. On GitHub, navigate to the main page of the repository.
3. Under the repository name, use the Code drop-down menu, and select Open with Codespaces.
4. If you already have a codespace for the branch, click New codespace.