export UA="Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/109.0"
alias aspire='/usr/bin/wget -b -r -p -np -E -k -U "$UA" '
# source
mkdir -p awk.docset/Contents/Resources/Documents/
aspire https://www.gnu.org/software/gawk/manual/html_node/index.html
mv www.gnu.org/software/gawk/manual/html_node/* awk.docset/Contents/Resources/Documents/
# metadata
wget https://kapeli.com/resources/Info.plist
sed -i -e 's,nginx,awk,' -e 's,Nginx,AWK,' Info.plist 
mv Info.plist awk.docset/Contents/
# icon
wget -O awk.docset/icon.png http://awklang.org/image/awkicon/atmaWhite.png
# search index
sqlite3 awk.docset/Contents/Resources/docSet.dsidx 'CREATE TABLE searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT);'
sqlite3 awk.docset/Contents/Resources/docSet.dsidx 'CREATE UNIQUE INDEX anchor ON searchIndex (name, type, path);'
find awk.docset/Contents/Resources/Documents -type f -name '*.html' -print0 | xargs -0 -I £ bash -c 'echo £; grep -F "<title>" £' > index.txt
sed -i -e 's,<title>,,' -e 's,</title>,,' -e 's, (The GNU Awk User&rsquo;s Guide),,' index.txt
awk -f genindex.awk index.txt >| index.tsv
{ echo '.mode tabs' ; echo '.import index.tsv searchIndex' ; } | sqlite3 awk.docset/Contents/Resources/docSet.dsidx
# deploy
mv awk.docset ~/.local/share/Zeal/Zeal/docsets/