Contents

require 'yaml'
require 'json'

module Bibliothecary
  class CPAN
    def self.analyse(folder_path, file_list)
      [analyse_json(folder_path, file_list),
      analyse_yaml(folder_path, file_list)]
    end

    def self.analyse_json(folder_path, file_list)
      path = file_list.find{|path| path.gsub(folder_path, '').gsub(/^\//, '').match(/^META\.json$/i) }
      return unless path

      manifest = JSON.parse File.open(path).read

      {
        platform: 'cpan',
        path: path,
        dependencies: parse_json_manifest(manifest)
      }
    end

    def self.analyse_yaml(folder_path, file_list)
      path = file_list.find{|path| path.gsub(folder_path, '').gsub(/^\//, '').match(/^META\.yml$/i) }
      return unless path

      manifest = YAML.load File.open(path).read

      {
        platform: 'cpan',
        path: path,
        dependencies: parse_yaml_manifest(manifest)
      }
    end

    def self.parse_json_manifest(manifest)
      manifest['prereqs'].map do |group, deps|
        map_dependencies(deps, 'requires', 'runtime')
      end.flatten
    end

    def self.parse_yaml_manifest(manifest)
      map_dependencies(manifest, 'requires', 'runtime')
    end

    def self.map_dependencies(hash, key, type)
      hash.fetch(key,[]).map do |name, requirement|
        {
          name: name,
          requirement: requirement,
          type: type
        }
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
bibliothecary-0.2.0	lib/bibliothecary/cpan.rb
bibliothecary-0.1.0	lib/bibliothecary/cpan.rb