/tools/Ruby/lib/ruby/site_ruby/1.8/rubygems/commands/environment_command.rb
http://github.com/agross/netopenspace · Ruby · 130 lines · 105 code · 25 blank · 0 comment · 7 complexity · 65ecc6bf98680080ea6c003a2af3c7fc MD5 · raw file
- require 'rubygems/command'
- class Gem::Commands::EnvironmentCommand < Gem::Command
- def initialize
- super 'environment', 'Display information about the RubyGems environment'
- end
- def arguments # :nodoc:
- 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
- platform display the supported gem platforms
- <omitted> display everything
- EOF
- return args.gsub(/^\s+/, '')
- end
- def description # :nodoc:
- <<-EOF
- The RubyGems environment can be controlled through command line arguments,
- gemrc files, environment variables and built-in defaults.
- Command line argument defaults and some RubyGems defaults can be set in
- ~/.gemrc file for individual users and a /etc/gemrc for all users. A gemrc
- is a YAML file with the following YAML keys:
- :sources: A YAML array of remote gem repositories to install gems from
- :verbose: Verbosity of the gem command. false, true, and :really are the
- levels
- :update_sources: Enable/disable automatic updating of repository metadata
- :backtrace: Print backtrace when RubyGems encounters an error
- :gempath: The paths in which to look for gems
- gem_command: A string containing arguments for the specified gem command
- Example:
- :verbose: false
- install: --no-wrappers
- update: --no-wrappers
- RubyGems' default local repository can be overridden with the GEM_PATH and
- GEM_HOME environment variables. GEM_HOME sets the default repository to
- install into. GEM_PATH allows multiple local repositories to be searched for
- gems.
- If you are behind a proxy server, RubyGems uses the HTTP_PROXY,
- HTTP_PROXY_USER and HTTP_PROXY_PASS environment variables to discover the
- proxy server.
- If you are packaging RubyGems all of RubyGems' defaults are in
- lib/rubygems/defaults.rb. You may override these in
- lib/rubygems/defaults/operating_system.rb
- EOF
- end
- def usage # :nodoc:
- "#{program_name} [arg]"
- end
- def execute
- out = ''
- arg = options[:args][0]
- case arg
- when /^packageversion/ then
- out << Gem::RubyGemsPackageVersion
- when /^version/ then
- out << Gem::VERSION
- when /^gemdir/, /^gemhome/, /^home/, /^GEM_HOME/ then
- out << Gem.dir
- when /^gempath/, /^path/, /^GEM_PATH/ then
- out << Gem.path.join(File::PATH_SEPARATOR)
- when /^remotesources/ then
- out << Gem.sources.join("\n")
- when /^platform/ then
- out << Gem.platforms.join(File::PATH_SEPARATOR)
- when nil then
- out = "RubyGems Environment:\n"
- out << " - RUBYGEMS VERSION: #{Gem::VERSION}\n"
- out << " - RUBY VERSION: #{RUBY_VERSION} (#{RUBY_RELEASE_DATE}"
- out << " patchlevel #{RUBY_PATCHLEVEL}" if defined? RUBY_PATCHLEVEL
- out << ") [#{RUBY_PLATFORM}]\n"
- out << " - INSTALLATION DIRECTORY: #{Gem.dir}\n"
- out << " - RUBYGEMS PREFIX: #{Gem.prefix}\n" unless Gem.prefix.nil?
- out << " - RUBY EXECUTABLE: #{Gem.ruby}\n"
- out << " - EXECUTABLE DIRECTORY: #{Gem.bindir}\n"
- out << " - RUBYGEMS PLATFORMS:\n"
- Gem.platforms.each do |platform|
- out << " - #{platform}\n"
- end
- out << " - GEM PATHS:\n"
- out << " - #{Gem.dir}\n"
- path = Gem.path.dup
- path.delete Gem.dir
- path.each do |p|
- out << " - #{p}\n"
- end
- out << " - GEM CONFIGURATION:\n"
- Gem.configuration.each do |name, value|
- value = value.gsub(/./, '*') if name == 'gemcutter_key'
- out << " - #{name.inspect} => #{value.inspect}\n"
- end
- out << " - REMOTE SOURCES:\n"
- Gem.sources.each do |s|
- out << " - #{s}\n"
- end
- else
- raise Gem::CommandLineError, "Unknown environment option [#{arg}]"
- end
- say out
- true
- end
- end