Class: LibGems::Commands::EnvironmentCommand

Inherits:
LibGems::Command show all
Defined in:
lib/libgems/commands/environment_command.rb

Instance Attribute Summary

Attributes inherited from LibGems::Command

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

Instance Method Summary collapse

Methods inherited from LibGems::Command

add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #begins?, build_args, build_args=, common_options, #defaults_str, extra_args, extra_args=, #get_all_gem_names, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #merge_options, #remove_option, #show_help, #show_lookup_failure, specific_extra_args, specific_extra_args_hash, #when_invoked

Methods included from UserInteraction

#methname

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/libgems/commands/environment_command.rb', line 5

def initialize
  super 'environment', "Display information about the #{LibGems::NAME} environment"
end

Instance Method Details

#arguments ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/environment_command.rb', line 9

def arguments # :nodoc:
  args = "        packageversion  display the package version\n        gemdir          display the path where gems are installed\n        gempath         display path used to search for gems\n        version         display the gem format version\n        remotesources   display the remote gem servers\n        platform        display the supported gem platforms\n        <omitted>       display everything\n  EOF\n  return args.gsub(/^\\s+/, '')\nend\n"

#description ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/environment_command.rb', line 22

def description # :nodoc:
  "The \#{LibGems::NAME} environment can be controlled through command line arguments,\ngemrc files, environment variables and built-in defaults.\n\nCommand line argument defaults and some \#{LibGems::NAME} defaults can be set in\n~/.gemrc file for individual users and a /etc/gemrc for all users.  A gemrc\nis a YAML file with the following YAML keys:\n\n:sources: A YAML array of remote gem repositories to install gems from\n:verbose: Verbosity of the gem command.  false, true, and :really are the\n          levels\n:update_sources: Enable/disable automatic updating of repository metadata\n:backtrace: Print backtrace when \#{LibGems::NAME} encounters an error\n:bulk_threshold: Switch to a bulk update when this many sources are out of\n                 date (legacy setting)\n:gempath: The paths in which to look for gems\ngem_command: A string containing arguments for the specified gem command\n\nExample:\n\n:verbose: false\ninstall: --no-wrappers\nupdate: --no-wrappers\n\n\#{LibGems::NAME}' default local repository can be overriden with the GEM_PATH and\nGEM_HOME environment variables.  GEM_HOME sets the default repository to\ninstall into.  GEM_PATH allows multiple local repositories to be searched for\ngems.\n\nIf you are behind a proxy server, \#{LibGems::NAME} uses the HTTP_PROXY,\nHTTP_PROXY_USER and HTTP_PROXY_PASS environment variables to discover the\nproxy server.\n\nIf you are packaging \#{LibGems::NAME} all of \#{LibGems::NAME}' defaults are in\nlib/libgems/defaults.rb.  You may override these in\nlib/libgems/defaults/operating_system.rb\n  EOF\nend\n"

#execute ⇒ Object 



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# File 'lib/libgems/commands/environment_command.rb', line 66

def execute
  out = ''
  arg = options[:args][0]
  case arg
  when /^packageversion/ then
    out << LibGems::RubyGemsPackageVersion
  when /^version/ then
    out << LibGems::LIBGEMS_VERSION
  when /^gemdir/, /^gemhome/, /^home/, /^LIBGEMS_HOME/, /^GEM_HOME/ then
    out << LibGems.dir
  when /^gempath/, /^path/, /^LIBGEMS_PATH/, /^GEM_PATH/ then
    out << LibGems.path.join(File::PATH_SEPARATOR)
  when /^remotesources/ then
    out << LibGems.sources.join("\n")
  when /^platform/ then
    out << LibGems.platforms.join(File::PATH_SEPARATOR)
  when nil then
    out = "#{LibGems::NAME} Environment:\n"

    out << "  - LibGems VERSION: #{LibGems::LIBGEMS_VERSION}\n"
    out << "  - RUBYGEMS VERSION: #{LibGems::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: #{LibGems.dir}\n"

    out << "  - RUBYGEMS PREFIX: #{LibGems.prefix}\n" unless LibGems.prefix.nil?

    out << "  - RUBY EXECUTABLE: #{LibGems.ruby}\n"

    out << "  - EXECUTABLE DIRECTORY: #{LibGems.bindir}\n"

    out << "  - RUBYGEMS PLATFORMS:\n"
    LibGems.platforms.each do |platform|
      out << "    - #{platform}\n"
    end

    out << "  - GEM PATHS:\n"
    out << "     - #{LibGems.dir}\n"

    path = LibGems.path.dup
    path.delete LibGems.dir
    path.each do |p|
      out << "     - #{p}\n"
    end

    out << "  - GEM CONFIGURATION:\n"
    LibGems.configuration.each do |name, value|
      value = value.gsub(/./, '*') if name == 'gemcutter_key'
      out << "     - #{name.inspect} => #{value.inspect}\n"
    end

    out << "  - REMOTE SOURCES:\n"
    LibGems.sources.each do |s|
      out << "     - #{s}\n"
    end

  else
    raise LibGems::CommandLineError, "Unknown enviroment option [#{arg}]"
  end
  say out
  true
end

#usage ⇒ Object

:nodoc:



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# File 'lib/libgems/commands/environment_command.rb', line 62

def usage # :nodoc:
  "#{program_name} [arg]"
end