Class: Gem::UpdateCommand

Inherits:
Command
  • Object
show all
Includes:
InstallUpdateOptions
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 InstallUpdateOptions

#add_install_update_options, #install_update_defaults_str

Methods inherited from Command

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

Methods included from DefaultUserInteraction

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

Constructor Details

#initialize ⇒ UpdateCommand

Returns a new instance of UpdateCommand.



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# File 'lib/rubygems/gem_commands.rb', line 925

def initialize
  super(
    'update',
    'Update the named gem (or all installed gems) in the local repository',
    {
      :generate_rdoc => true, 
      :generate_ri => true, 
      :force => false, 
      :test => false,
      :install_dir => Gem.dir
    })
  add_install_update_options
  add_option('--system',
    'Update the RubyGems system software') do |value, options|
    options[:system] = value
  end
end

Instance Method Details

#arguments ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 948

def arguments
  "GEMNAME(s)   name of gem(s) to update"
end

#defaults_str ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 943

def defaults_str
  "--rdoc --ri --no-force --no-test\n" +
  "--install-dir #{Gem.dir}"
end

#do_rubygems_update(version_string) ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 998

def do_rubygems_update(version_string)
  update_dir = File.join(Gem.dir, "gems", "rubygems-update-#{version_string}")
  Dir.chdir(update_dir) do
    puts "Installing RubyGems #{version_string}"
    system "#{Gem.ruby} setup.rb"
  end
end

#execute ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 952

def execute
  if options[:system]
    say "Updating RubyGems..."
    if ! options[:args].empty?
      fail "No gem names are allowed with the --system option"
    end
    options[:args] = ["rubygems-update"]
  else
    say "Updating installed gems..."
  end
  hig = highest_installed_gems = {}
  Gem::SourceIndex.from_installed_gems.each do |name, spec|
    if hig[spec.name].nil? or hig[spec.name].version < spec.version
      hig[spec.name] = spec
    end
  end
  remote_gemspecs = Gem::SourceInfoCache.search(//)
  gems_to_update =  if(options[:args].empty?) then
                      which_to_update(highest_installed_gems, remote_gemspecs)
                    else
                      options[:args]
                    end
  options[:domain] = :remote # install from remote source
  install_command = command_manager['install']
  gems_to_update.uniq.sort.each do |name|
    say "Attempting remote update of #{name}"
    options[:args] = [name]
    install_command.merge_options(options)
    install_command.execute
  end
  if gems_to_update.include?("rubygems-update")
    latest_ruby_gem = remote_gemspecs.select { |s|
      s.name == 'rubygems-update' 
    }.sort_by { |s|
      s.version
    }.last
    say "Updating version of RubyGems to #{latest_ruby_gem.version}"
    do_rubygems_update(latest_ruby_gem.version.to_s)
  end
  if(options[:system]) then
    say "RubyGems system software updated"
  else
    say "Gems: [#{gems_to_update.uniq.sort.collect{|g| g.to_s}.join(', ')}] updated"
  end
end

#which_to_update(highest_installed_gems, remote_gemspecs) ⇒ Object 



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# File 'lib/rubygems/gem_commands.rb', line 1006

def which_to_update(highest_installed_gems, remote_gemspecs)
  result = []
  highest_installed_gems.each do |l_name, l_spec|
    highest_remote_gem =
      remote_gemspecs.select  { |spec| spec.name == l_name }.
                      sort_by { |spec| spec.version }.
                      last
    if highest_remote_gem and l_spec.version < highest_remote_gem.version
      result << l_name
    end
  end
  result
end