pwm / aoc2023

(ﾉ ◕ ヮ ◕)ﾉ*:･ﾟ ✧ Advent of Code 2023 (◕‿◕✿)

Setup

We'll need 2 env vars:

1. AOC_SESSION will hold your personal AoC session cookie
2. AOC_INPUT_PATH is the path to the input dir within this repo, eg. ~/code/aoc2023/input

echo 'export AOC_SESSION=<my-aoc-session>' >> .envrc.private
echo 'export AOC_INPUT_PATH=<my-aoc-input-path>' >> .envrc.private
direnv allow .

Use

The project is using Nixkell

Creating day template

Use mkday.sh to fetch the input file and generate a template module and spec for it.

scripts/mkday.sh # current date
scripts/mkday.sh 01 # current year, specific day
scripts/mkday.sh 2023 01 # specific date

Compile and Run

scripts/comp.sh
scripts/solve.sh # current date
scripts/solve.sh 01 # specific day
scripts/solve.sh 2023 01 # specific date

Notes:

• optimization in cabal.project is set to 0 for fast dev UX. Setting it to 2 can significantly speed up solvers
• For profiling flip the relevant flags in nixkell.toml (for GHC profiling overrides) and in cabal.project (for profiling builds)

Testing

scripts/test.sh

Formatting, Linting, etc...

treefmt
hlint .
scripts/shellcheck.sh

Nix

build
aoc fetch --year 2023 --day 01
aoc solve --year 2023 --day 01

Perf

hyperfine --warmup 3 -- 'scripts/solve.sh 2023 01'
hyperfine --warmup 3 -- 'aoc solve -y 2023 -d 01'

CI with Cachix

Configure CACHIX_SIGNING_KEY as a repository secret (see: https://nix.dev/tutorials/continuous-integration-github-actions)