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-rw-r--r--trunk/lib/rubygems/command_manager.rb146
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diff --git a/trunk/lib/rubygems/command_manager.rb b/trunk/lib/rubygems/command_manager.rb
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--- a/trunk/lib/rubygems/command_manager.rb
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@@ -1,146 +0,0 @@
-#--
-# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
-# All rights reserved.
-# See LICENSE.txt for permissions.
-#++
-
-require 'timeout'
-require 'rubygems/command'
-require 'rubygems/user_interaction'
-
-module Gem
-
- ####################################################################
- # The command manager registers and installs all the individual
- # sub-commands supported by the gem command.
- class CommandManager
- include UserInteraction
-
- # Return the authoritative instance of the command manager.
- def self.instance
- @command_manager ||= CommandManager.new
- end
-
- # Register all the subcommands supported by the gem command.
- def initialize
- @commands = {}
- register_command :build
- register_command :cert
- register_command :check
- register_command :cleanup
- register_command :contents
- register_command :dependency
- register_command :environment
- register_command :fetch
- register_command :generate_index
- register_command :help
- register_command :install
- register_command :list
- register_command :lock
- register_command :mirror
- register_command :outdated
- register_command :pristine
- register_command :query
- register_command :rdoc
- register_command :search
- register_command :server
- register_command :sources
- register_command :specification
- register_command :stale
- register_command :uninstall
- register_command :unpack
- register_command :update
- register_command :which
- end
-
- # Register the command object.
- def register_command(command_obj)
- @commands[command_obj] = false
- end
-
- # Return the registered command from the command name.
- def [](command_name)
- command_name = command_name.intern
- return nil if @commands[command_name].nil?
- @commands[command_name] ||= load_and_instantiate(command_name)
- end
-
- # Return a list of all command names (as strings).
- def command_names
- @commands.keys.collect {|key| key.to_s}.sort
- end
-
- # Run the config specified by +args+.
- def run(args)
- process_args(args)
- rescue StandardError, Timeout::Error => ex
- alert_error "While executing gem ... (#{ex.class})\n #{ex.to_s}"
- ui.errs.puts "\t#{ex.backtrace.join "\n\t"}" if
- Gem.configuration.backtrace
- terminate_interaction(1)
- rescue Interrupt
- alert_error "Interrupted"
- terminate_interaction(1)
- end
-
- def process_args(args)
- args = args.to_str.split(/\s+/) if args.respond_to?(:to_str)
- if args.size == 0
- say Gem::Command::HELP
- terminate_interaction(1)
- end
- case args[0]
- when '-h', '--help'
- say Gem::Command::HELP
- terminate_interaction(0)
- when '-v', '--version'
- say Gem::RubyGemsVersion
- terminate_interaction(0)
- when /^-/
- alert_error "Invalid option: #{args[0]}. See 'gem --help'."
- terminate_interaction(1)
- else
- cmd_name = args.shift.downcase
- cmd = find_command(cmd_name)
- cmd.invoke(*args)
- end
- end
-
- def find_command(cmd_name)
- possibilities = find_command_possibilities(cmd_name)
- if possibilities.size > 1
- raise "Ambiguous command #{cmd_name} matches [#{possibilities.join(', ')}]"
- end
- if possibilities.size < 1
- raise "Unknown command #{cmd_name}"
- end
-
- self[possibilities.first]
- end
-
- def find_command_possibilities(cmd_name)
- len = cmd_name.length
- self.command_names.select { |n| cmd_name == n[0,len] }
- end
-
- private
-
- def load_and_instantiate(command_name)
- command_name = command_name.to_s
- retried = false
-
- begin
- const_name = command_name.capitalize.gsub(/_(.)/) { $1.upcase }
- Gem::Commands.const_get("#{const_name}Command").new
- rescue NameError
- if retried then
- raise
- else
- retried = true
- require "rubygems/commands/#{command_name}_command"
- retry
- end
- end
- end
- end
-end