1 files changed, 57 insertions, 0 deletions
diff --git a/lib/rubygems/commands/generate_index_command.rb b/lib/rubygems/commands/generate_index_command.rb
new file mode 100644
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+++ b/lib/rubygems/commands/generate_index_command.rb
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+require 'rubygems/command'
+require 'rubygems/indexer'
+
+class Gem::Commands::GenerateIndexCommand < Gem::Command
+
+  def initialize
+    super 'generate_index',
+          'Generates the index files for a gem server directory',
+          :directory => '.'
+
+    add_option '-d', '--directory=DIRNAME',
+               'repository base dir containing gems subdir' do |dir, options|
+      options[:directory] = File.expand_path dir
+    end
+  end
+
+  def defaults_str # :nodoc:
+    "--directory ."
+  end
+
+  def description # :nodoc:
+    <<-EOF
+The generate_index command creates a set of indexes for serving gems
+statically.  The command expects a 'gems' directory under the path given to
+the --directory option.  When done, it will generate a set of files like this:
+
+  gems/                                        # .gem files you want to index
+  quick/index
+  quick/index.rz                               # quick index manifest
+  quick/<gemname>.gemspec.rz                   # legacy YAML quick index file
+  quick/Marshal.<version>/<gemname>.gemspec.rz # Marshal quick index file
+  Marshal.<version>
+  Marshal.<version>.Z # Marshal full index
+  yaml
+  yaml.Z # legacy YAML full index
+
+The .Z and .rz extension files are compressed with the inflate algorithm.  The
+Marshal version number comes from ruby's Marshal::MAJOR_VERSION and
+Marshal::MINOR_VERSION constants.  It is used to ensure compatibility.  The
+yaml indexes exist for legacy RubyGems clients and fallback in case of Marshal
+version changes.
+    EOF
+  end
+
+  def execute
+    if not File.exist?(options[:directory]) or
+       not File.directory?(options[:directory]) then
+      alert_error "unknown directory name #{directory}."
+      terminate_interaction 1
+    else
+      indexer = Gem::Indexer.new options[:directory]
+      indexer.generate_index
+    end
+  end
+
+end
+