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seirdy.one/scripts/populate-webrings.sh
2023-11-15 02:31:06 -08:00

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#!/bin/sh
# Get webring links to append to the CSV before building
# Some webrings require an iframe or scripts, but I want a plain static
# first-party HTML+CSS page. This script fetches webring links by
# parsing the iframes and appends appropriate values to my webrings.csv file.
set -e -u
# the name of this program
progname="$(basename "$0")"
dirname="$(dirname "$0")"
webrings_src="$dirname/../csv/webrings.base.csv"
webrings_dest="$dirname/../csv/webrings.csv"
help_text="Usage: $progname [OPTION...]
Update webrings.csv with new prev/next links, to avoid iframes/scripts
Options:
-h Print this help and exit
-d Dry run; just print results, don't update webrings.csv
"
usage() {
printf '%s' "$help_text"
}
# when the user passess bad args, send a msg to stderr and exit
# usage: bad_option <option> <reason>
bad_option() {
echo "$progname: option $1: $2" >&2
usage >&2
exit 1
}
dry_run='0'
while getopts "hd" flags; do
case $flags in
h)
usage
exit 0
;;
d)
dry_run='1'
shift
;;
*)
bad_option "$flags" 'invalid option'
;;
esac
done
endless_orbit() {
printf 'Endless Orbit,'
curl -sSL --compressed https://linkyblog.neocities.org/onionring/onionring-variables.js \
| grep -C 1 https://seirdy.one/ \
| tr -d "'\n" | sed 's|https://seirdy.one/|https://linkyblog.neocities.org/webring.html|'
echo 'null'
}
if [ "$dry_run" = '1' ]; then
endless_orbit
elif [ -f "$webrings_dest" ]; then
echo "webrings file already generated"
else
endless_orbit | cat "$webrings_src" - >"$webrings_dest"
fi
# vi:ft=sh