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import os
import importlib.metadata
from datetime import datetime, timezone
from .page import Page
from .configuration import Configuration
VERSION = importlib.metadata.version('pyssg')
DFORMAT = '%a, %d %b %Y %H:%M:%S GMT'
class RSSBuilder:
def __init__(self, config: Configuration,
template: str,
pages: list[Page]):
self.config: Configuration = config
self.rss: str = template
self.pages: list[Page] = pages
def build(self):
# initial base replacements
self.rss = self.rss.replace('$$TITLE', self.config.title)
self.rss = self.rss.replace('$$LINK', self.config.base_url)
self.rss = self.rss.replace('$$PYSSGVERSION', VERSION)
items_formatted: str = self.__get_items_formatted()
self.rss = self.rss.replace('$$ITEMS', items_formatted)
current_date: str = datetime.now(tz=timezone.utc).strftime(DFORMAT)
self.rss = self.rss.replace('$$CURRENTDATE', current_date)
with open(os.path.join(self.config.dst, 'rss.xml'), 'w') as f:
f.write(self.rss)
def __get_items_formatted(self) -> str:
# i_f=items formatted for short
i_f: str = ''
for p in self.pages:
url: str = f'{self.config.base_url}/{p.name.replace(".md", ".html")}'
date: str = p.c_datetime.strftime(DFORMAT)
i_f = f'{i_f} <item>\n'
i_f = f'{i_f} <title>{p.title}</title>\n'
i_f = f'{i_f} <link>{url}</link>\n'
i_f = f'{i_f} <description>{p.summary}</description>\n'
i_f = f'{i_f} <guid isPermaLink="true">{url}</guid>\n'
i_f = f'{i_f} <pubDate>{date}</pubDate>\n'
i_f = f'{i_f} </item>\n'
return i_f
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