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path: root/lib/gitlab/file_finder.rb
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# frozen_string_literal: true

# This class finds files in a repository by name and content
# the result is joined and sorted by file name
module Gitlab
  class FileFinder
    attr_reader :project, :ref

    delegate :repository, to: :project

    def initialize(project, ref)
      @project = project
      @ref = ref
    end

    def find(query)
      query = Gitlab::Search::Query.new(query, encode_binary: true) do
        filter :filename, matcher: ->(filter, blob) { blob.binary_filename =~ /#{filter[:regex_value]}$/i }
        filter :path, matcher: ->(filter, blob) { blob.binary_filename =~ /#{filter[:regex_value]}/i }
        filter :extension, matcher: ->(filter, blob) { blob.binary_filename =~ /\.#{filter[:regex_value]}$/i }
      end

      files = find_by_filename(query.term) + find_by_content(query.term)

      files = query.filter_results(files) if query.filters.any?

      files
    end

    private

    def find_by_content(query)
      repository.search_files_by_content(query, ref).map do |result|
        Gitlab::Search::FoundBlob.new(content_match: result, project: project, ref: ref, repository: repository)
      end
    end

    def find_by_filename(query)
      search_filenames(query).map do |filename|
        Gitlab::Search::FoundBlob.new(blob_filename: filename, project: project, ref: ref, repository: repository)
      end
    end

    def search_filenames(query)
      repository.search_files_by_name(query, ref)
    end
  end
end