debian-mirror-gitlab/lib/gitlab/reference_extractor.rb

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module Gitlab
# Extract possible GFM references from an arbitrary String for further processing.
class ReferenceExtractor
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attr_accessor :project, :current_user
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def initialize(project, current_user = nil)
@project = project
@current_user = current_user
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end
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def analyze(text)
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references.clear
@text = markdown.render(text.dup)
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end
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%i(user label issue merge_request snippet commit commit_range).each do |type|
define_method("#{type}s") do
references[type]
end
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end
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private
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def markdown
@markdown ||= Redcarpet::Markdown.new(Redcarpet::Render::HTML, GitlabMarkdownHelper::MARKDOWN_OPTIONS)
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end
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def references
@references ||= Hash.new do |references, type|
type = type.to_sym
return references[type] if references.has_key?(type)
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references[type] = pipeline_result(type).uniq
end
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end
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# Instantiate and call HTML::Pipeline with a single reference filter type,
# returning the result
#
# filter_type - Symbol reference type (e.g., :commit, :issue, etc.)
#
# Returns the results Array for the requested filter type
def pipeline_result(filter_type)
klass = filter_type.to_s.camelize + 'ReferenceFilter'
filter = "Gitlab::Markdown::#{klass}".constantize
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context = {
project: project,
current_user: current_user,
# We don't actually care about the links generated
only_path: true,
ignore_blockquotes: true
}
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pipeline = HTML::Pipeline.new([filter], context)
result = pipeline.call(@text)
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result[:references][filter_type]
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end
end
end