script

aoc.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+set -eu
+
+function get_cookie {
+    if [ ! -f aoc_cookie ]; then
+        echo "aoc_cookie file not found, cannot download" >&2
+        exit 1
+    fi
+    cat aoc_cookie
+}
+
+: "${1:?usage: ./aoc.sh new}"
+
+case "$1" in
+    new)
+        : "${2:?usage: ./aoc.sh new DAY}"
+        day="$(printf %02d "$2")"
+        cp -r "2023/day00" "2023/day$day"
+        find "2023/day$day" -type f -exec sed -i -e "s/00/$day/g" {} \;
+
+        curl -H "Cookie: $(get_cookie)" "https://adventofcode.com/2023/day/$2/input" -o "2023/day$day/input.txt"
+        ;;
+    *)
+        echo "usage: ./aoc.sh new" >&2
+        ;;
+esac