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#!/usr/bin/env python3
# Written by Martin Fischer <martin@push-f.com> and licensed under MIT.
# The embedded SVG is licensed under Mozilla's MPL / GPL / LGPL and
# from https://commons.wikimedia.org/wiki/File:Generic_Feed-icon.svg.
import os
import sys
import xml.etree.ElementTree as ET
from xml.sax.saxutils import escape
FEED_SVG = '<svg height="25" width="25" viewBox="0 0 8 8" xmlns="http://www.w3.org/2000/svg"><title>Feed</title><rect fill="#f3b01b" height="8" rx="1.5" width="8"/><g fill="#fff"><circle cx="2" cy="6" r="1"/><path d="m1 4a3 3 0 0 1 3 3h1a4 4 0 0 0 -4-4z"/><path d="m1 2a5 5 0 0 1 5 5h1a6 6 0 0 0 -6-6z"/></g></svg>'
URL = escape(os.environ['URL'])
TITLE = escape(os.environ['TITLE'])
posts = []
DIRNAME = sys.argv[1].strip('/')
DIR = '/' + DIRNAME + '/'
OUTDIR = 'build' + DIR
for filename in sorted(os.listdir(OUTDIR), reverse=True):
if filename in ('atom.xml', 'index.html'):
continue
tree = ET.parse(OUTDIR + filename + '/index.html').getroot()
title = tree.find('.//title')
data = dict(
title=escape(title.text),
html=''.join(
ET.tostring(c, 'unicode') for c in tree.find('.//div[@id="content"]')
),
path=DIR + escape(filename),
)
dataEl = tree.find('.//meta[@name="dcterms.date"]')
if dataEl is not None:
data['date'] = dataEl.attrib['content']
data['dateMeta'] = dataEl.attrib['content'] + 'T00:00:00Z'
else:
print('[warning] no date for', filename)
posts.append(data)
last_updated = max([p['dateMeta'] for p in posts if 'dateMeta' in p])
with open(OUTDIR + 'index.html', 'w') as f:
f.write(
f'<h2>{escape(DIRNAME.title())} <a href="{escape(DIR)}atom.xml" style="vertical-align:top">{FEED_SVG}</a></h2>'
)
f.write('<ul class="mkfeed-list">')
for post in posts:
f.write(
f"<li>{post.get('date')}: <a href=\"{post['path']}\">{post['title']}</a></li>"
)
f.write('</ul>')
with open(OUTDIR + 'atom.xml', 'w') as f:
f.write(
f'''\
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<id>{URL}</id>
<title>{TITLE}</title>
<link href="{URL}"/>
<updated>{last_updated}</updated>
'''
)
for post in posts[:10]:
f.write(
f'''
<entry>
<title>{post['title']}</title>
<link href="{URL.rstrip('/')}{post['path']}"/>
<id>{URL.rstrip('/')}{post['path']}</id>
<updated>{post.get('dateMeta')}</updated>
<content type="html"><![CDATA[{post['html']}]]></content>
</entry>
'''
)
f.write('</feed>')
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