Add rss

1 files changed, 0 insertions, 189 deletions

diff --git a/tools/rssg b/tools/rssg
deleted file mode 100755
index 52031e7..0000000
--- a/tools/rssg
+++ /dev/null
@@ -1,189 +0,0 @@
-#!/bin/sh
-#
-# https://www.romanzolotarev.com/bin/rssg
-# Copyright 2018 Roman Zolotarev <hi@romanzolotarev.com>
-#
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-set -e
-
-
-main () {
-	test -n "$1" || usage
-	test -n "$2" || usage
-	test -f "$1" || no_file "$1"
-
-
-	index_file=$(readlink -f "$1")
-	test -z "${index_file##*html}" && html=$(cat "$index_file")
-	test -z "${index_file##*md}" && html=$(md_to_html "$index_file")
-	test -n "$html" || usage
-
-	base="${index_file%/*}"
-	base_url="$(echo "$html" | get_url | sed 's#\(.*\)/[^/]*#\1#')"
-
-	url=$(		echo "$html" | get_url)
-
-	title="$2"
-
-	description=$(	echo "$html" | get_description |
-			remove_tags |
-			remove_nbsp )
-
-	items=$(	echo "$html" | get_items)
-
-	rss=$(		echo "$items" |
-			render_items "$base" "$base_url" |
-			render_feed "$url" "$title" "$description")
-
-	>&2 echo "[rssg] ${index_file##$(pwd)/} $(echo "$rss" | grep -c '<item>') items"
-	echo "$rss"
-}
-
-
-usage() {
-	echo "usage: ${0##*/} index.{html,md} title > rss.xml" >&2
-	exit 1
-}
-
-
-no_file() {
-	echo "${0##*/}: $1: No such file" >&2
-	exit 2
-}
-
-
-md_to_html() {
-	test -x "$(which lowdown)" || exit 3
-	lowdown \
-	-D html-skiphtml \
-	-D smarty \
-	-d metadata \
-	-d autolink "$1"
-}
-
-
-get_title() {
-	awk 'tolower($0)~/^<h1/{gsub(/<[^>]*>/,"",$0);print;exit}'
-}
-
-
-get_url() {
-	grep -i '<a .*rss.xml"' | head -1 |
-	sed 's#.*href="\(.*\)".*#\1#'
-}
-
-
-get_items() {
-	grep -i 'href=".*" title="' |
-	sed 's#.*href="\(.*\)" title="\(.*\)">\(.*\)</a>.*#\1 \2 \3#'
-}
-
-
-get_description() {
-	start='sub("^.*<"s"*"t"("s"[^>]*)?>","")'
-	stop='sub("</"s"*"t""s"*>.*","")&&x=1'
-	awk -v 's=[[:space:]]' -v 't=[Pp]' "$start,$stop;x{exit}"
-}
-
-remove_tags() {
-	sed 's#<[^>]*>##g;s#</[^>]*>##g'
-}
-
-
-remove_nbsp() {
-	sed 's#\&nbsp;# #g'
-}
-
-
-rel_to_abs_urls() {
-	site_url="$1"
-	base_url="$2"
-
-	abs='s#(src|href)="/([^"]*)"#\1="'"$site_url"/'\2"#g'
-	rel='s#(src|href)="([^:/"]*)"#\1="'"$base_url"/'\2"#g'
-	sed -E "$abs;$rel"
-}
-
-
-date_rfc_822() {
-	date -j '+%a, %d %b %Y %H:%M:%S %z' \
-	"$(echo "$1"| tr -cd '[:digit:]')0000"
-}
-
-
-render_items() {
-	while read -r i
-	do render_item "$1" "$2" "$i"
-	done
-}
-
-
-render_item() {
-	base="$1"
-	base_url="$2"
-	item="$3"
-
-	site_url="$(echo "$base_url"| sed 's#\(.*//.*\)/.*#\1#')"
-
-	date=$(echo "$item"|awk '{print$2}')
-	url=$(echo "$item"|awk '{print$1}')
-
-	f="$base/$url"
-	test -f "$f" && html=$(cat "$f")
-	test -f "${f%\.html}.md" && html=$(md_to_html "${f%\.html}.md")
-
-	description=$(
-		echo "$html" |
-		rel_to_abs_urls "$site_url" "$base_url" |
-		remove_nbsp
-	)
-	title=$(echo "$description" | get_title)
-	guid="$base_url/$(echo "$url" | sed 's#^/##')"
-
-	echo '
-<item>
-<guid>'"$guid"'</guid>
-<link>'"$guid"'</link>
-<pubDate>'"$(date_rfc_822 "$date")"'</pubDate>
-<title>'"$title"'</title>
-<description><![CDATA[
-
-'"$description"'
-
-]]></description>
-</item>'
-}
-
-
-render_feed() {
-	url="$1"
-	title=$(echo "$2" | remove_nbsp)
-	description="$3"
-
-	base_url="$(echo "$url" | cut -d '/' -f1-3)"
-
-	echo '<?xml version="1.0" encoding="UTF-8"?>
-<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
-<channel>
-<atom:link href="'"$url"'" rel="self" type="application/rss+xml" />
-<title>'"$title"'</title>
-<description>'"$description"'</description>
-<link>'"$base_url"'/</link>
-<lastBuildDate>'"$(date_rfc_822 date)"'</lastBuildDate>
-'"$(cat)"'
-</channel></rss>'
-}
-
-
-main "$@"