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#!/bin/sh
# wr - Minimal webring utility
# Licensed under the MIT License.
# This script should not be sourced, make sure to change the string 'wr'
# in the following line to match this file's name
[ 'wr' = "$( basename ${0} )" ] || return 1
# Edit DOMAIN and AUTHOR for your instance
# Make sure that DOMAIN is ONLY the domain of your instance, and without trailing slash
DOMAIN="webring.gumx.cc"
AUTHOR="Ahmed (~gumxcc)"
# Script metadata
SCRIPT=$( basename "$0" )
VMAJOR=0
VMINOR=1
VPATCH=0
HOMEPAGE="https://webring.gumx.cc/"
print_help () {
cat << HELP_TEXT
${SCRIPT} v${VMAJOR}.${VMINOR}.${VPATCH}
Minimal webring utility
Usage:
${SCRIPT} add SITE_URL SITE_TITLE [AUTHOR_NAME]
Add a new entry to the webring
${SCRIPT} [build]
Build the webring
${SCRIPT} -h | --help | help
Display this help message and exit
${SCRIPT} -v | --version | version
Display the script version and exit
Project homepage: <${HOMEPAGE}>
HELP_TEXT
}
print_version () {
VERSION="${VMAJOR}.${VMINOR}.${VPATCH}"
printf '%s Version %s\n' "${SCRIPT}" "${VERSION}"
}
print_error () {
ERROR_MSG=${1:-Unknown error}
printf '%s: %s\n' "${SCRIPT}" "${ERROR_MSG}" >&2
}
build_webring() {
mkdir -p public
printf '' > public/index.html
cat << INDEX_PAGE_TOP > public/index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta content="IE=edge" http-equiv="X-UA-Compatible">
<meta content="text/html; charset=UTF-8" http-equiv="content-type">
<meta content="width=device-width,initial-scale=1" name="viewport">
<title>webring</title>
<meta content="webring" name="title">
<meta content="${AUTHOR}" name="author">
<meta content="Minimal webring" name="description">
<meta content="website" property="og:type">
<meta content="${DOMAIN}" property="og:url">
<meta content="webring" property="og:site_name">
<meta content="webring" property="og:title">
<meta content="Minimal webring" property="og:description">
<meta content="summary" property="twitter:card">
<meta content="${DOMAIN}" property="twitter:url">
<meta content="webring" property="twitter:title">
<meta content="Minimal webring" property="twitter:description">
<link href="${DOMAIN}" rel="canonical">
<link href="data:image/x-icon;base64,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" rel="icon">
<script type="application/ld+json">
{
"description":"Minimal webring",
"url":"${DOMAIN}",
"@type":"WebSite",
"headline":"webring",
"name":"webring",
"author":{
"@type":"Person",
"name":"${AUTHOR}"
},
"@context":"https://schema.org"
}
</script>
<style>
html { height:100%; background:white; }
body { background:white; color:black; font-family:monospace; font-size:16px; line-height:1.4; margin:0; padding:4rem 0; min-height:100%; overflow-wrap:break-word; }
main { max-width:640px; margin:0 auto; padding:0 2rem; }
h1 { text-align:center }
ul { display: flow-root; }
li, nav a { width: 40%; float: left; margin: 0 5%; }
nav a { text-decoration: none; display: block; text-align: center; }
body[theme="dark"] { filter:invert(1); }
@media (prefers-color-scheme: dark) { body[theme="auto"] { filter:invert(1); } }
@media (max-width:640px) { li { width: 90%; } }
</style>
</head>
<body theme="auto">
<main>
<h1>ω webring</h1>
<hr />
<ul>
INDEX_PAGE_TOP
#TODO: refactor this
count=0
for entry in $( find ./entries -type f ); do
count=$(( count + 1 ))
. ${entry}
entry_name="$( basename ${entry} )"
[ ${count} -eq 1 ] && first_entry="${entry_name}" && prev_entry="${entry_name}"
mkdir -p "public/${entry_name}" \
"public/${entry_name}/next" \
"public/${entry_name}/previous"
printf "<html><meta http-equiv=\"Refresh\" content=\"0; url='%s'\" /></html>\n" "${url}" \
> "public/${entry_name}/index.html"
cp "public/${entry_name}/index.html" "public/${prev_entry}/next/index.html"
cp "public/${prev_entry}/index.html" "public/${entry_name}/previous/index.html"
prev_entry="${entry_name}"
[ -n "${author}" ] \
&& printf ' <li><a href="%s">%s</a> by %s</li>\n' \
"${url}" "${title}" "${author}" >> public/index.html \
|| printf ' <li><a href="%s">%s</a></li>\n' \
"${url}" "${title}" >> public/index.html
unset url title author
done
cp "public/${first_entry}/index.html" "public/${entry_name}/next/index.html"
cp "public/${entry_name}/index.html" "public/${first_entry}/previous/index.html"
cat << INDEX_PAGE_BOTTOM >> public/index.html
</ul>
<hr />
<p>This is an attempt to replicate <a href="https://wiki.xxiivv.com/site/devine_lu_linvega.html">Devine Lu Linvega</a>'s <a href="https://webring.xxiivv.com/">webring</a> in a very minimal way, and with a lower technical bar.</p>
<p>To add your site to the webring, follow the instructions <a href="https://git.sr.ht/~gumxcc/webring.gumx.cc#host-your-own">here</a>. For issues, source code, documentation, visit the <a href="https://sr.ht/~a2/webring/">project page on sourcehut</a></p>
<p>This project is licensed under <a href="https://git.sr.ht/~gumxcc/webring.gumx.cc/tree/main/item/LICENSE">MIT license</a></p>
<hr />
<nav>
<a href="/${DOMAIN}/previous">≺ previous</a>
<a href="/${DOMAIN}/next">next ≻</a>
</nav>
</main>
</body>
</html>
INDEX_PAGE_BOTTOM
}
add_entry() {
entry="$( basename ${1} )"
entry_file="entries/${entry}"
mkdir -p $( dirname ${entry_file} )
printf 'url="%s"\ntitle="%s"' "${1}" "${2}" > "${entry_file}"
[ -n "${3}" ] && printf '\nauthor="%s"' "${3}" >> "${entry_file}"
cat << ENTRY_LINKS
Add the following links in your website, preferrably in the footer:
<p>
<a href="https://${DOMAIN}/${entry}/previous">← previous</a>
 
<a href="https://${DOMAIN}/">webring index</a>
 
<a href="https://${DOMAIN}/${entry}/next">next →</a>
</p>
You can style them as you please of course
ENTRY_LINKS
}
if [ -z "${1}" ] || [ "${1}" = "build" ]; then
printf 'Building the webring..'
build_webring
printf ' done\n'
exit 0
fi
ENTRY_URL=''
ENTRY_TITLE=''
ENTRY_AUTHOR=''
case "${1}" in
-h|--help|help)
print_help
exit 0
;;
-v|--version|version)
print_version
exit 0
;;
add)
shift
add_entry "${1}" "${2}" "${3}"
exit 0
;;
*)
print_error "${1}: Invalid argument"
print_help >&2
exit 22
;;
esac
trap "print_error 'Interrupt signal detected, output may be incomplete'" INT
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