1 files changed, 77 insertions, 0 deletions
diff --git a/ruby_2_2/lib/rubygems/commands/fetch_command.rb b/ruby_2_2/lib/rubygems/commands/fetch_command.rb
new file mode 100644
index 0000000000..c57ab0089a
--- /dev/null
+++ b/ruby_2_2/lib/rubygems/commands/fetch_command.rb
@@ -0,0 +1,77 @@
+require 'rubygems/command'
+require 'rubygems/local_remote_options'
+require 'rubygems/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 then
+        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.version }
+
+      if spec.nil? then
+        show_lookup_failure gem_name, version, errors, options[:domain]
+        next
+      end
+
+      source.download spec
+
+      say "Downloaded #{spec.full_name}"
+    end
+  end
+
+end
+