1 files changed, 77 insertions, 0 deletions
diff --git a/trunk/lib/rubygems/commands/specification_command.rb b/trunk/lib/rubygems/commands/specification_command.rb
new file mode 100644
index 0000000000..689f2560c9
--- /dev/null
+++ b/trunk/lib/rubygems/commands/specification_command.rb
@@ -0,0 +1,77 @@
+require 'yaml'
+require 'rubygems/command'
+require 'rubygems/local_remote_options'
+require 'rubygems/version_option'
+require 'rubygems/source_info_cache'
+require 'rubygems/format'
+
+class Gem::Commands::SpecificationCommand < Gem::Command
+
+  include Gem::LocalRemoteOptions
+  include Gem::VersionOption
+
+  def initialize
+    super 'specification', 'Display gem specification (in yaml)',
+          :domain => :local, :version => Gem::Requirement.default
+
+    add_version_option('examine')
+    add_platform_option
+
+    add_option('--all', 'Output specifications for all versions of',
+               'the gem') do |value, options|
+      options[:all] = true
+    end
+
+    add_local_remote_options
+  end
+
+  def arguments # :nodoc:
+    "GEMFILE       name of gem to show the gemspec for"
+  end
+
+  def defaults_str # :nodoc:
+    "--local --version '#{Gem::Requirement.default}'"
+  end
+
+  def usage # :nodoc:
+    "#{program_name} [GEMFILE]"
+  end
+
+  def execute
+    specs = []
+    gem = get_one_gem_name
+
+    if local? then
+      if File.exist? gem then
+        specs << Gem::Format.from_file_by_path(gem).spec rescue nil
+      end
+
+      if specs.empty? then
+        specs.push(*Gem.source_index.search(/\A#{gem}\z/, options[:version]))
+      end
+    end
+
+    if remote? then
+      dep = Gem::Dependency.new gem, options[:version]
+      found = Gem::SpecFetcher.fetcher.fetch dep
+
+      specs.push(*found.map { |spec,| spec })
+    end
+
+    if specs.empty? then
+      alert_error "Unknown gem '#{gem}'"
+      terminate_interaction 1
+    end
+
+    output = lambda { |s| say s.to_yaml; say "\n" }
+
+    if options[:all] then
+      specs.each(&output)
+    else
+      spec = specs.sort_by { |s| s.version }.last
+      output[spec]
+    end
+  end
+
+end
+