晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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DIR:/opt/alt/ruby26/lib64/ruby/2.6.0/bundler/cli/
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# frozen_string_literal: true

module Bundler
  class CLI::Info
    attr_reader :gem_name, :options
    def initialize(options, gem_name)
      @options = options
      @gem_name = gem_name
    end

    def run
      spec = spec_for_gem(gem_name)

      spec_not_found(gem_name) unless spec
      return print_gem_path(spec) if @options[:path]
      print_gem_info(spec)
    end

  private

    def spec_for_gem(gem_name)
      spec = Bundler.definition.specs.find {|s| s.name == gem_name }
      spec || default_gem_spec(gem_name)
    end

    def default_gem_spec(gem_name)
      return unless Gem::Specification.respond_to?(:find_all_by_name)
      gem_spec = Gem::Specification.find_all_by_name(gem_name).last
      return gem_spec if gem_spec && gem_spec.respond_to?(:default_gem?) && gem_spec.default_gem?
    end

    def spec_not_found(gem_name)
      raise GemNotFound, Bundler::CLI::Common.gem_not_found_message(gem_name, Bundler.definition.dependencies)
    end

    def print_gem_path(spec)
      Bundler.ui.info spec.full_gem_path
    end

    def print_gem_info(spec)
      gem_info = String.new
      gem_info << "  * #{spec.name} (#{spec.version}#{spec.git_version})\n"
      gem_info << "\tSummary: #{spec.summary}\n" if spec.summary
      gem_info << "\tHomepage: #{spec.homepage}\n" if spec.homepage
      gem_info << "\tPath: #{spec.full_gem_path}\n"
      gem_info << "\tDefault Gem: yes" if spec.respond_to?(:default_gem?) && spec.default_gem?
      Bundler.ui.info gem_info
    end
  end
end