#!/bin/bash
# /usr/local/bin/recently_linked
# https://crystalfaeries/posix/bin/recently_linked
# celeste:crystalfaery RECENTLY_LINKED 2021-04-28 16:04:12+00:00
# recently_linked generates a webpage indexing by date (inverse order)
# the URLs linked-to from webpages in the blog generated by chronicle (ignores rest of website)
# this is primarily invoked during the run of /usr/local/bin/blog,
# so that upon each regeneration of the blog we update the link date page.
# NOTE: first hack of code will fail to see more than one URL per line of text.
let help=9 # this line number - 1
case $# in
0) : # No arguments, just fall through and do it
;;
*) head -n $help $0
exit # cannonical help response
;;
esac
# The DATABASE of external links is simply two columns of text:
# 1: UNIX TimeStamp
# 2: URL
DATABASE=$HOME/crystalfaeries.net/links.txt
touch ${DATABASE} || exit 1 # write permission required
# Update the URL DataBase which is sorted oldest first to newest last:
for URL in $(grep 'href="http' "${HOME}"/crystalfaeries.net/src/*.txt | grep -v http://crystalfaeries.net/ | grep -v https://crystalfaeries.net/ | sed 's/^.*http:\/\//http:\/\//g ; s/^.*https:\/\//https:\/\//g ; s/".*$//g ; s/<\/a>.*$//g ; s/\[.*$//g');
do
grep -i "${URL}" ${DATABASE} > /dev/null
if [ $? -ne 0 ]
then
echo "`date +%s` ${URL}" >> ${DATABASE}
fi
done
# Generate the HTML page:
echo 'Recently LinkedRecently Linked
' \
> $HOME/crystalfaeries.net/recently_linked.html # Title and Header
echo '![[clock]](/imgs/clipart/portrait/clock.png)
' \
>> $HOME/crystalfaeries.net/recently_linked.html # Title and Header
echo 'Date______ Time-Timezone URL
' >> $HOME/crystalfaeries.net/recently_linked.html # Column Headings
# read URLs newest to oldest
tac ${DATABASE} | \
while read STAMP URL
do
echo "$(date --rfc-3339=seconds --date=@${STAMP}) ${URL}
" \
>> $HOME/crystalfaeries.net/recently_linked.html
done
echo -e "
" >> $HOME/crystalfaeries.net/recently_linked.html
cat $HOME/crystalfaeries.net/README.html >> $HOME/crystalfaeries.net/recently_linked.html
exit $?