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#!/usr/bin/env bash
#
# Copyright (C) 2017 Alyssa Rosenzweig <alyssa@rosenzweig.io>
# Copyright (C) 2017 Michael Reed <michael@michaelreed.io>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
BLOGTITLE="Nouveautés de Libreboot."
BLOGBASE="https://libreboot.org/"
BLOGDESCRIPTION="Nouveautés sur le développement de Libreboot"
# MANIFEST determines the order of news articles in news/index.md
FILES=$(< news/MANIFEST)
# usage: title file
title() {
sed -n 1p "$1" | sed -e s-^..--
}
# usage: meta file
meta() {
file=$1
URL=$(printf '%s\n' "${file%.md}.html" | sed -e s-news/--)
printf '%s\n' "[$(title "$file")]($URL){.title}"
printf '%s\n' "[$(sed -n 3p "$file" | sed -e s-^..--)]{.date}"
printf '\n'
tail -n +5 "$file" | perl -p0e 's/(\.|\?|\!)( |\n)(.|\n)*/.../g'
printf '\n'
printf '\n'
}
# usage: rss_header
rss_header() {
printf '%s\n' '<rss version="2.0">'
printf '%s\n' '<channel>'
printf '%s\n' "<title>$BLOGTITLE</title>"
printf '%s\n' "<link>Actualités de ${BLOGBASE}/</link>"
printf '%s\n' "<description>$BLOGDESCRIPTION</description>"
}
# usage: rss_main file
rss_main() {
file=$1
# render content and escape
desc=$(sed -e 's/</\</g' "${file%.md}.bare.html" | sed -e 's/>/\>/g')
url="${file%.md}.html"
printf '%s\n' '<item>'
printf '%s\n' "<title>$(title "$file")</title>"
printf '%s\n' "<link>$BLOGBASE$url</link>"
printf '%s\n' "<description>$desc</description>"
printf '%s\n' '</item>'
}
# usage: rss_footer
rss_footer() {
printf '%s\n' '</channel>'
printf '%s\n' '</rss>'
}
# generate the index file
cat news-list.md > news/index.md
for f in $FILES
do
meta "$f" >> news/index.md
done
# generate the RSS index
rss_header > news/feed.xml
for f in $FILES
do
rss_main "$f" >> news/feed.xml
done
rss_footer >> news/feed.xml
cp news/feed.xml feed.xml
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