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📄 build_command.rb(2.92 KB)
📄 cert_command.rb(9.13 KB)
📄 check_command.rb(2.24 KB)
📄 cleanup_command.rb(4.7 KB)
📄 contents_command.rb(4.06 KB)
📄 dependency_command.rb(5.14 KB)
📄 environment_command.rb(5.04 KB)
📄 fetch_command.rb(1.77 KB)
📄 generate_index_command.rb(2.92 KB)
📄 help_command.rb(10.18 KB)
📄 info_command.rb(852 B)
📄 install_command.rb(7.5 KB)
📄 list_command.rb(1 KB)
📄 lock_command.rb(2.69 KB)
📄 mirror_command.rb(626 B)
📄 open_command.rb(1.92 KB)
📄 outdated_command.rb(863 B)
📄 owner_command.rb(2.95 KB)
📄 pristine_command.rb(5.99 KB)
📄 push_command.rb(2.63 KB)
📄 query_command.rb(1.24 KB)
📄 rdoc_command.rb(2.48 KB)
📄 search_command.rb(989 B)
📄 server_command.rb(2.48 KB)
📄 setup_command.rb(19.33 KB)
📄 signin_command.rb(895 B)
📄 signout_command.rb(897 B)
📄 sources_command.rb(5.73 KB)
📄 specification_command.rb(3.42 KB)
📄 stale_command.rb(964 B)
📄 uninstall_command.rb(5.67 KB)
📄 unpack_command.rb(4.45 KB)
📄 update_command.rb(9.08 KB)
📄 which_command.rb(2.1 KB)
📄 yank_command.rb(2.34 KB)

Editing: fetch_command.rb

# frozen_string_literal: true
require_relative '../command'
require_relative '../local_remote_options'
require_relative '../version_option'

class Gem::Commands::FetchCommand < Gem::Command
  include Gem::LocalRemoteOptions
  include Gem::VersionOption

def initialize
    super 'fetch', 'Download a gem and place it in the current directory'

add_bulk_threshold_option
    add_proxy_option
    add_source_option
    add_clear_sources_option

add_version_option
    add_platform_option
    add_prerelease_option
  end

def arguments # :nodoc:
    'GEMNAME       name of gem to download'
  end

def defaults_str # :nodoc:
    "--version '#{Gem::Requirement.default}'"
  end

def description # :nodoc:
    <<-EOF
The fetch command fetches gem files that can be stored for later use or
unpacked to examine their contents.

See the build command help for an example of unpacking a gem, modifying it,
then repackaging it.
    EOF
  end

def usage # :nodoc:
    "#{program_name} GEMNAME [GEMNAME ...]"
  end

def execute
    version = options[:version] || Gem::Requirement.default

platform  = Gem.platforms.last
    gem_names = get_all_gem_names

gem_names.each do |gem_name|
      dep = Gem::Dependency.new gem_name, version
      dep.prerelease = options[:prerelease]

specs_and_sources, errors =
        Gem::SpecFetcher.fetcher.spec_for_dependency dep

if platform
        filtered = specs_and_sources.select {|s,| s.platform == platform }
        specs_and_sources = filtered unless filtered.empty?
      end

spec, source = specs_and_sources.max_by {|s,| s }

if spec.nil?
        show_lookup_failure gem_name, version, errors, options[:domain]
        next
      end

source.download spec

say "Downloaded #{spec.full_name}"
    end
  end
end

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Editing: fetch_command.rb

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