74 lines
2 KiB
Ruby
74 lines
2 KiB
Ruby
require 'gitlab/markdown'
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module Gitlab
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# Extract possible GFM references from an arbitrary String for further processing.
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class ReferenceExtractor
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attr_accessor :project, :current_user, :load_lazy_references
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def initialize(project, current_user = nil, load_lazy_references: true)
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@project = project
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@current_user = current_user
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@load_lazy_references = load_lazy_references
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end
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def analyze(text)
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references.clear
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@text = Gitlab::Markdown.render_without_gfm(text)
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end
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%i(user label issue merge_request snippet commit commit_range).each do |type|
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define_method("#{type}s") do
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references[type]
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end
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end
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private
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def references
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@references ||= Hash.new do |references, type|
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type = type.to_sym
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next references[type] if references.has_key?(type)
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references[type] = pipeline_result(type)
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end
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end
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# Instantiate and call HTML::Pipeline with a single reference filter type,
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# returning the result
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#
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# filter_type - Symbol reference type (e.g., :commit, :issue, etc.)
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#
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# Returns the results Array for the requested filter type
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def pipeline_result(filter_type)
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return [] if @text.blank?
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klass = "#{filter_type.to_s.camelize}ReferenceFilter"
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filter = Gitlab::Markdown.const_get(klass)
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context = {
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project: project,
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current_user: current_user,
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# We don't actually care about the links generated
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only_path: true,
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ignore_blockquotes: true,
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# ReferenceGathererFilter
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load_lazy_references: false,
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reference_filter: filter
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}
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pipeline = HTML::Pipeline.new([filter, Gitlab::Markdown::ReferenceGathererFilter], context)
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result = pipeline.call(@text)
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values = result[:references][filter_type].uniq
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if @load_lazy_references
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values = Gitlab::Markdown::ReferenceFilter::LazyReference.load(values).uniq
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end
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values
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end
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end
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end
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