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#!/bin/sh -eu
_mode="wget"
_cookies="${HOME}/.adventofcode.json"
usage() {
print "%s\n\n%s\n%s\n%s\n" "$0 [-h] [-y <year>] [-d <day>]" \
'-h | --help Output this help.' \
'-y | --help Use another year than the current one.' \
'-d | --help Use another day than the current one.'
}
_opts=$( getopt --options "y:d:h" --long 'year:,day:,help' -- "$@" )
eval set -- "${_opts}"
unset _opts
while [ $1 != '--' ]; do
case "$1" in
'-d' | '--day')
shift
_day="$1"
;;
'-y' | '--year')
shift
_year="$1"
;;
'-h' | '--help')
usage
exit 0
;;
esac
shift
done
_year=${_year:-$(date +%Y)}
[ "${_day:-}" ] || _day=${_day:-$(TZ=EST date '+%d')}
[ "${#_day}" != 1 ] || _day="0${_day}"
_natural_day="$( echo "${_day}" | sed 's/^0//' )"
# https://stackoverflow.com/q/21919156/how-do-i-copy-cookies-from-chrome
_session=$(jq < "${_cookies}" '."session-cookie"')
check_dependency_availability() {
for bin in 'elinks' \
'jq' \
'wget'
do
if ! which "${bin}" >/dev/null; then
echo "Missing dependency: ${bin}" >&2
exit 1
fi
done
unset bin
}
concat() {
for part in "$@"; do
printf '%s' "${part}"
done
unset part
}
authenticated_wget() {
wget \
--server-response \
--header "Cookie: session=${_session}" \
"${@}"
}
check_dependency_availability
if [ "${_mode}" = 'wget' ]; then
cd "${_year}"
cd 'rust'
mkdir "day${_day}" || :
cd "day${_day}"
# https://stackoverflow.com/q/21919156/how-do-i-copy-cookies-from-chrome
_session=$(jq < "${_cookies}" '."session-cookie"' | tr -d '"')
if [ -e "input" ]; then
echo 'Directory input already exists. Skipping.'
else
mkdir 'input'
authenticated_wget --output-document "input/page_${_natural_day}.html" \
"https://adventofcode.com/${_year}/day/${_natural_day}"
_settings=$(authenticated_wget --output-document='-' \
"https://adventofcode.com/${_year}/settings")
_username=$(echo "${_settings}" |
sed -n 's#.*display_name.*checked.*<span>\(.*\)</span>.*#\1#p')
echo "Found username: ${_username}"
authenticated_wget --output-document "input/${_username}" \
"https://adventofcode.com/${_year}/day/${_natural_day}/input"
elinks -dump "./input/page_${_natural_day}.html" \
>"input/page_${_natural_day}.txt"
sed -n 's/^ \([^ ]\)/\1/p' <"input/page_${_natural_day}.txt" \
>"input/example.txt"
fi
elif [ "${_mode}" = 'aocdl' ]; then
# One could possibly use the golang implemenation instead of wget:
# https://github.com/GreenLightning/advent-of-code-downloader
#
# It has more features, but it is always a hassle to install extra things.
#
# go get github.com/GreenLightning/advent-of-code-downloader/aocdl
~/.go/bin/aocdl -output "{{.Year}}/rust/{{.Day}}"
fi
unset _cookies _day _mode _natural_day _session _settings _username _year
# vim: sw=2 et
|
