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#!/bin/sh
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#
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# This initial version builds on code from ssg4
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# copyright is as follows:
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# -----
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# https://www.romanzolotarev.com/bin/ssg4
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# Copyright 2018 Roman Zolotarev <hi@romanzolotarev.com>
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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# -----
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list_pages(){
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cd rendered && find . -type f ! -path '*/.*' ! -path '*/_*' -name '*.html' | sed 's#^./##;#'
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}
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main(){
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dst=rendered
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base_url="$4"
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date=$(date +%Y-%m-%d)
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urls=$(list_pages "$src")
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test -n "$urls" &&
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render_sitemap "$urls" "$base_url" "$date" > "$dst/sitemap.xml"
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print_status 'url' 'urls' "$urls" >&2
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echo >&2
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}
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print_status() {
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test -z "$3" && printf 'no %s' "$2" && return
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echo "$3" | awk -v singular="$1" -v plural="$2" '
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END {
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if (NR==1) printf NR " " singular
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if (NR>1) printf NR " " plural
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}'
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}
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render_sitemap() {
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urls="$1"
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base_url="$2"
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date="$3"
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echo '<?xml version="1.0" encoding="UTF-8"?>'
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echo '<urlset'
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echo 'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'
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echo 'xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9'
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echo 'http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"'
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echo 'xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">'
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echo "$urls" |
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sed -E 's#^(.*)$#<url><loc>'"$base_url"'/\1</loc><lastmod>'\
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"$date"'</lastmod><priority>1.0</priority></url>#'
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echo '</urlset>'
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}
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main "$@"
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