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# Adapted from the admonition code on http://nanoc.ws/
class IntroducedInFilter < Nanoc::Filter
identifier :introduced_in
def run(content, params = {})
# `#dup` is necessary because `.fragment` modifies the incoming string. Ew!
# See https://github.com/sparklemotion/nokogiri/issues/1077
@incremental_id = 0
doc = Nokogiri::HTML.fragment(content.dup)
doc.css('blockquote').each do |blockquote|
content = blockquote.inner_html
# Searches for a blockquote with either of the following:
#
# - Specific strings:
# - "introduced <optional text> in"
# - "removed <optional text> in"
# - "deprecated <optional text> in"
# - "moved <optional text> to"
# ...followed by "GitLab"
#
# - The presense of "**(VERSION_INFO)**" or "- **(VERSION_INFO)**"
next unless content =~ %r{(<a href="[^"]+">)?(introduced|(re)?moved|deprecated)(</a>)?(.*)? (in|to).*GitLab}mi || content =~ %r{(<li>)?<strong>\(VERSION_INFO\)</strong>(</li>)?}mi
content.gsub!(%r{(<li>)?<strong>\(VERSION_INFO\)</strong>(</li>)?}, "")
new_content = generate(content)
blockquote.replace(new_content)
end
doc.to_s
end
def generate(content)
@incremental_id += 1
# If the content is a list of items, collapse the content.
if content.match?(/<ul>/i)
%(<div class="introduced-in mb-3">Version information
<button class="text-expander" type="button" data-toggle="collapse" data-target="#release_version_notes_#{@incremental_id}" aria-expanded="false" aria-controls="release_version_notes_#{@incremental_id}" aria-label="Version information">
</button>
<div class="introduced-in-content collapse" id="release_version_notes_#{@incremental_id}">
#{content}
</div>
</div>)
else
%(<div class="introduced-in">#{content}</div>)
end
end
end
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