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# -*- coding: utf-8 -*-
# Copyright © 2012-2015 Roberto Alsina and others.
# Permission is hereby granted, free of charge, to any
# person obtaining a copy of this software and associated
# documentation files (the "Software"), to deal in the
# Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the
# Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice
# shall be included in all copies or substantial portions of
# the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
# PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
# OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""Generate RSS feeds."""
from __future__ import unicode_literals, print_function
import os
try:
from urlparse import urljoin
except ImportError:
from urllib.parse import urljoin # NOQA
from nikola import utils
from nikola.plugin_categories import Task
class GenerateRSS(Task):
"""Generate RSS feeds."""
name = "generate_rss"
def set_site(self, site):
"""Set Nikola site."""
site.register_path_handler('rss', self.rss_path)
return super(GenerateRSS, self).set_site(site)
def gen_tasks(self):
"""Generate RSS feeds."""
kw = {
"translations": self.site.config["TRANSLATIONS"],
"filters": self.site.config["FILTERS"],
"blog_title": self.site.config["BLOG_TITLE"],
"site_url": self.site.config["SITE_URL"],
"base_url": self.site.config["BASE_URL"],
"blog_description": self.site.config["BLOG_DESCRIPTION"],
"output_folder": self.site.config["OUTPUT_FOLDER"],
"feed_teasers": self.site.config["FEED_TEASERS"],
"feed_plain": self.site.config["FEED_PLAIN"],
"show_untranslated_posts": self.site.config['SHOW_UNTRANSLATED_POSTS'],
"feed_length": self.site.config['FEED_LENGTH'],
"feed_previewimage": self.site.config["FEED_PREVIEWIMAGE"],
"tzinfo": self.site.tzinfo,
"feed_read_more_link": self.site.config["FEED_READ_MORE_LINK"],
"feed_links_append_query": self.site.config["FEED_LINKS_APPEND_QUERY"],
}
self.site.scan_posts()
# Check for any changes in the state of use_in_feeds for any post.
# Issue #934
kw['use_in_feeds_status'] = ''.join(
['T' if x.use_in_feeds else 'F' for x in self.site.timeline]
)
yield self.group_task()
for lang in kw["translations"]:
output_name = os.path.join(kw['output_folder'],
self.site.path("rss", None, lang))
deps = []
deps_uptodate = []
if kw["show_untranslated_posts"]:
posts = self.site.posts[:kw['feed_length']]
else:
posts = [x for x in self.site.posts if x.is_translation_available(lang)][:kw['feed_length']]
for post in posts:
deps += post.deps(lang)
deps_uptodate += post.deps_uptodate(lang)
feed_url = urljoin(self.site.config['BASE_URL'], self.site.link("rss", None, lang).lstrip('/'))
task = {
'basename': 'generate_rss',
'name': os.path.normpath(output_name),
'file_dep': deps,
'targets': [output_name],
'actions': [(utils.generic_rss_renderer,
(lang, kw["blog_title"](lang), kw["site_url"],
kw["blog_description"](lang), posts, output_name,
kw["feed_teasers"], kw["feed_plain"], kw['feed_length'], feed_url,
None, kw["feed_links_append_query"]))],
'task_dep': ['render_posts'],
'clean': True,
'uptodate': [utils.config_changed(kw, 'nikola.plugins.task.rss')] + deps_uptodate,
}
yield utils.apply_filters(task, kw['filters'])
def rss_path(self, name, lang):
"""A link to the RSS feed path.
Example:
link://rss => /blog/rss.xml
"""
return [_f for _f in [self.site.config['TRANSLATIONS'][lang],
self.site.config['RSS_PATH'], 'rss.xml'] if _f]
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