Class: Gem::EnvironmentCommand

Inherits:
Command
  • Object
show all
Includes:
CommandAids
Defined in:
lib/rubygems/gem_commands.rb

Instance Attribute Summary

Attributes inherited from Command

#command, #defaults, #options, #program_name, #summary

Instance Method Summary collapse

Methods included from CommandAids

#begins?, #get_all_gem_names, #get_one_gem_name, #get_one_optional_argument

Methods inherited from Command

add_common_option, #add_option, add_specific_extra_args, common_options, #defaults_str, extra_args, extra_args=, #handles?, #invoke, #merge_options, #remove_option, #show_help, specific_extra_args, specific_extra_args_hash, #when_invoked

Methods included from DefaultUserInteraction

#ui, ui, #ui=, ui=, #use_ui, use_ui

Constructor Details

#initialize ⇒ EnvironmentCommand

Returns a new instance of EnvironmentCommand.



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# File 'lib/rubygems/gem_commands.rb', line 1270

def initialize
  super('environment', 'Display information about the RubyGems environment')
end

Instance Method Details

#arguments ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 1278

def arguments
  args = <<-EOF
    packageversion  display the package version
    gemdir          display the path where gems are installed
    gempath         display path used to search for gems
    version         display the gem format version
    remotesources   display the remote gem servers
    <omitted>       display everything
  EOF
  return args.gsub(/^\s+/, '')
end

#execute ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 1290

def execute
  out = ''
  arg = options[:args][0]
  if begins?("packageversion", arg)
    out = Gem::RubyGemsPackageVersion.to_s
  elsif begins?("version", arg)
    out = Gem::RubyGemsVersion.to_s
  elsif begins?("gemdir", arg)
    out = Gem.dir
  elsif begins?("gempath", arg)
    Gem.path.collect { |p| out << "#{p}\n" }
  elsif begins?("remotesources", arg)
    require 'sources'
    out << Gem.sources.join("\n") << "\n"
  elsif arg
    fail Gem::CommandLineError, "Unknown enviroment option [#{arg}]"
  else
    out = "RubyGems Environment:\n"
    out << "  - VERSION: #{Gem::RubyGemsVersion} (#{Gem::RubyGemsPackageVersion})\n"
    out << "  - INSTALLATION DIRECTORY: #{Gem.dir}\n"
    out << "  - GEM PATH:\n"
    Gem.path.collect { |p| out << "     - #{p}\n" }
    out << "  - REMOTE SOURCES:\n"
    require 'sources'
    Gem.sources.collect do |s|
      out << "     - #{s}\n"
    end
  end
  say out
  true
end

#usage ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 1274

def usage
  "#{program_name} [args]"
end