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#!/usr/bin/env python3
from sys import argv
from urllib.parse import urljoin
from xml.etree.ElementTree import Element, SubElement, indent, tostring
from helpers import (
DATE_FORMATTERS,
guess_language,
read_concerts,
tmplocale,
touchup_plaintext,
)
LOCALIZED_TEXT = {
'en': {
'title': 'Bellefeuille Quartet',
'indexpath': 'en/',
'description': 'News from the Bellefeuille quartet',
},
'fr': {
'title': 'Quatuor Bellefeuille',
'indexpath': '/',
'description': 'Des nouvelles du quatuor Bellefeuille',
},
}
LOCALIZED_FORMATS = {
'en': {
'title': lambda c: f'{c.time.strftime("%B %-d %Y")} in {c.place}',
},
'fr': {
'title': lambda c: f'{c.time.strftime("%-d %B %Y")} à {c.place}',
},
}
def text_element(tag, text, /, **kwargs):
elt = Element(tag, **kwargs)
elt.text = text
return elt
def block(tag, content):
return f'<{tag}>{content}</{tag}>'
def cdata_concert(concert, lang):
formatters = DATE_FORMATTERS[lang]
blocks = []
if concert.warning is None:
blocks.append(block('p', concert.warning))
blocks.extend((
block('p', formatters['date'](concert.time)),
block('p', formatters['time'](concert.time)),
block('p', concert.address.replace('\n', '<br>'))
))
piece_list = '\n'.join(
block('li', touchup_plaintext(p)) for p in concert.pieces.splitlines()
)
blocks.append(block('ol', piece_list))
blocks.extend(
block('p', touchup_plaintext(line))
for line in concert.instructions.splitlines()
)
cdata = '\n'.join((blocks))
return f'<![CDATA[{cdata}]]'
def generate_concert(concert, concerts_url, lang):
formatters = LOCALIZED_FORMATS[lang]
item = Element('item')
with tmplocale(lang):
title = formatters['title'](concert)
item.append(text_element('title', title))
anchor = f'concert-{concert.time.strftime("%F")}'
item.append(text_element('link', f'{concerts_url}#{anchor}'))
cdata = cdata_concert(concert, lang)
item.append(text_element('description', cdata))
return item
def generate_concerts(concerts_src, concerts_url, lang):
for c in read_concerts(concerts_src):
yield generate_concert(c, concerts_url, lang)
def main(concerts_src, feed_dst, domain):
lang = guess_language(concerts_src)
text = LOCALIZED_TEXT[lang]
url = f'https://{domain}'
index_url = urljoin(url, text['indexpath'])
concerts_url = urljoin(index_url, 'concerts.html')
rss = Element('rss', version='2.0')
channel = SubElement(rss, 'channel')
channel.extend((
text_element('title', text['title']),
text_element('link', index_url),
text_element('description', text['description']),
))
image = SubElement(channel, 'image')
image.extend((
text_element('url', urljoin(url, 'images/logo.svg')),
text_element('link', concerts_url),
))
channel.append(text_element('language', lang))
items = generate_concerts(concerts_src, concerts_url, lang)
channel.extend(tuple(items))
indent(rss)
with open(feed_dst, 'wb') as feed:
feed.write(tostring(rss, encoding='utf-8', xml_declaration=True))
if __name__ == '__main__':
main(argv[1], argv[2], argv[3])
|
