94 lines
2.7 KiB
Ruby
94 lines
2.7 KiB
Ruby
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 :users, :labels, :issues, :merge_requests, :snippets, :commits, :commit_ranges
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include Markdown
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def initialize
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@users, @labels, @issues, @merge_requests, @snippets, @commits, @commit_ranges =
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[], [], [], [], [], [], []
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end
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def analyze(string, project)
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text = string.dup
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# Remove preformatted/code blocks so that references are not included
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text.gsub!(%r{<pre>.*?</pre>|<code>.*?</code>}m) { |match| '' }
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text.gsub!(%r{^```.*?^```}m) { |match| '' }
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parse_references(text, project)
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end
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# Given a valid project, resolve the extracted identifiers of the requested type to
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# model objects.
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def users_for(project)
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users.map do |entry|
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project.users.where(username: entry[:id]).first
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end.reject(&:nil?)
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end
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def labels_for(project = nil)
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labels.map do |entry|
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project.labels.where(id: entry[:id]).first
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end.reject(&:nil?)
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end
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def issues_for(project = nil)
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issues.map do |entry|
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if should_lookup?(project, entry[:project])
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entry[:project].issues.where(iid: entry[:id]).first
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end
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end.reject(&:nil?)
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end
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def merge_requests_for(project = nil)
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merge_requests.map do |entry|
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if should_lookup?(project, entry[:project])
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entry[:project].merge_requests.where(iid: entry[:id]).first
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end
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end.reject(&:nil?)
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end
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def snippets_for(project)
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snippets.map do |entry|
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project.snippets.where(id: entry[:id]).first
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end.reject(&:nil?)
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end
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def commits_for(project = nil)
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commits.map do |entry|
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repo = entry[:project].repository if entry[:project]
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if should_lookup?(project, entry[:project])
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repo.commit(entry[:id]) if repo
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end
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end.reject(&:nil?)
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end
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def commit_ranges_for(project = nil)
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commit_ranges.map do |entry|
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repo = entry[:project].repository if entry[:project]
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if repo && should_lookup?(project, entry[:project])
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from_id, to_id = entry[:id].split(/\.{2,3}/, 2)
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[repo.commit(from_id), repo.commit(to_id)]
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end
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end.reject(&:nil?)
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end
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private
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def reference_link(type, identifier, project, _)
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# Append identifier to the appropriate collection.
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send("#{type}s") << { project: project, id: identifier }
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end
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def should_lookup?(project, entry_project)
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if entry_project.nil?
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false
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else
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project.nil? || entry_project.default_issues_tracker?
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end
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end
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end
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end
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