Advent of Code 2022 using Kotlin.
To keep things interesting, this year I'm using Kotlin Multiplatform and producing a native runner binary. This at least works on Github Actions Linux agents and Apple silicon Macs.
./aocrunner -d [1-25] (-i [input file]) (-a1 [expected part 1 answer]) (-a2 [expected part 2 answer])
Usage: aocrunner options_list
Options:
--day, -d -> Day number (always required) { Int }
--in-file, -i -> Input file path { String }
--answer1, -a1 -> Part 1 expected answer { String }
--answer2, -a2 -> Part 2 expected answer { String }
--help, -h -> Usage info
Typical usage would simply be:
./aocrunner -d [1-25]
where the default input file is expected at ./inputs/xx.txt, where xx is the 2-character (0-padded) day number.`
inputs/ contains all 'real' inputs, as well as any tested samples. E.g. for day 1, the real input is 01.txt and the sample is 01-s1.txt.
./gradlew runDays invokes the native runner executable for each line in expect.txt and succeeds if all actual outputs match those from the file. Each line in expect.txt is a comma-separated list of the 4-args to pass to the runner.