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# frozen_string_literal: true
require 'singleton'
module Gitlab
class ReleaseBlogPost
include Singleton
RELEASE_RSS_URL = 'https://about.gitlab.com/releases.xml'
def blog_post_url
@url ||= fetch_blog_post_url
end
private
def fetch_blog_post_url
installed_version = Gitlab.final_release? ? Gitlab.minor_release : Gitlab.previous_release
response = Gitlab::HTTP.get(RELEASE_RSS_URL, verify: false)
return unless response.code == 200
blog_entry = find_installed_blog_entry(response, installed_version)
blog_entry['id'] if blog_entry
end
def find_installed_blog_entry(response, installed_version)
response['feed']['entry'].find do |entry|
entry['release'] == installed_version || matches_previous_release_post(entry['release'], installed_version)
end
end
def should_match_previous_release_post?
Gitlab.new_major_release? && !Gitlab.final_release?
end
def matches_previous_release_post(rss_release_version, installed_version)
should_match_previous_release_post? && rss_release_version[/\d+/] == installed_version
end
end
end
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