Contents

require 'deb_control'

module Bibliothecary
  module Parsers
    class CRAN
      include Bibliothecary::Analyser

      REQUIRE_REGEXP = /([a-zA-Z0-9\-_\.]+)\s?\(?([><=\s\d\.,]+)?\)?/

      def self.parse(filename, path)
        if filename.match(/^DESCRIPTION$/i)
          file_contents = File.open(path).read
          control = DebControl::ControlFileBase.parse(file_contents)
          parse_description(control)
        else
          []
        end
      end

      def self.parse_description(manifest)
        parse_section(manifest, 'Depends') +
        parse_section(manifest, 'Imports') +
        parse_section(manifest, 'Suggests') +
        parse_section(manifest, 'Enhances')
      end

      def self.parse_section(manifest, name)
        deps = manifest.first[name].gsub("\n", '').split(',').map(&:strip)
        deps.map do |dependency|
          dep = dependency.match(REQUIRE_REGEXP)
          {
            name: dep[1],
            version: dep[2] || '*',
            type: name.downcase
          }
        end
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
bibliothecary-4.0.0	lib/bibliothecary/parsers/cran.rb
bibliothecary-3.0.1	lib/bibliothecary/parsers/cran.rb
bibliothecary-3.0.0	lib/bibliothecary/parsers/cran.rb