#!/bin/sh -e

cat > urls <<EOF
https://archive.alt.org/nethackwiki/nethackwiki_current.xml.gz
https://archive.alt.org/nethackwiki/nethackwiki_full.xml.xz
https://archive.alt.org/nethackwiki/nethackwiki_current_images.tar.gz
EOF
aria2c -j 3 -i urls
rm *.aria2 urls
gunzip *.gz
xz -d *.xz
now=$(date +%Y%m%d)
mv nethackwiki_current.xml nethackwiki-$now.xml
mv nethackwiki_full.xml nethackwiki-full-$now.xml
mv nethackwiki_current_images.tar nethackwiki-images-$now.tar
zstdmt -v --ultra -22 --long=31 --rm *.xml *.tar