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require 'rubygems/command'
require 'rubygems/command_manager'
require 'rubygems/install_update_options'
require 'rubygems/local_remote_options'
require 'rubygems/spec_fetcher'
require 'rubygems/version_option'
require 'rubygems/commands/install_command'
class Gem::Commands::UpdateCommand < Gem::Command
include Gem::InstallUpdateOptions
include Gem::LocalRemoteOptions
include Gem::VersionOption
def initialize
super 'update',
'Update the named gems (or all installed gems) in the local repository',
:generate_rdoc => true,
:generate_ri => true,
:force => false
add_install_update_options
OptionParser.accept Gem::Version do |value|
Gem::Version.new value
value
end
add_option('--system [VERSION]', Gem::Version,
'Update the RubyGems system software') do |value, options|
value = true unless value
options[:system] = value
end
add_local_remote_options
add_platform_option
add_prerelease_option "as update targets"
end
def arguments # :nodoc:
"GEMNAME name of gem to update"
end
def defaults_str # :nodoc:
"--rdoc --ri --no-force --install-dir #{Gem.dir}"
end
def usage # :nodoc:
"#{program_name} GEMNAME [GEMNAME ...]"
end
def execute
@installer = Gem::DependencyInstaller.new options
@updated = []
hig = {}
if options[:system] then
update_rubygems
return
else
say "Updating installed gems"
hig = {} # highest installed gems
Gem::Specification.each do |spec|
if hig[spec.name].nil? or hig[spec.name].version < spec.version then
hig[spec.name] = spec
end
end
end
gems_to_update = which_to_update hig, options[:args].uniq
updated = update_gems gems_to_update
if updated.empty? then
say "Nothing to update"
else
say "Gems updated: #{updated.map { |spec| spec.name }.join ', '}"
if options[:generate_ri] then
updated.each do |gem|
Gem::DocManager.new(gem, options[:rdoc_args]).generate_ri
end
Gem::DocManager.update_ri_cache
end
if options[:generate_rdoc] then
updated.each do |gem|
Gem::DocManager.new(gem, options[:rdoc_args]).generate_rdoc
end
end
end
end
def update_gem name, version = Gem::Requirement.default
return if @updated.any? { |spec| spec.name == name }
success = false
say "Updating #{name}"
begin
@installer.install name, version
success = true
rescue Gem::InstallError => e
alert_error "Error installing #{name}:\n\t#{e.message}"
success = false
end
@installer.installed_gems.each do |spec|
@updated << spec
say "Successfully installed #{spec.full_name}" if success
end
end
def update_gems gems_to_update
gems_to_update.uniq.sort.each do |(name, version)|
update_gem name, version
end
@updated
end
##
# Update RubyGems software to the latest version.
def update_rubygems
unless options[:args].empty? then
alert_error "Gem names are not allowed with the --system option"
terminate_interaction 1
end
options[:user_install] = false
# TODO: rename version and other variable name conflicts
# TODO: get rid of all this indirection on name and other BS
version = options[:system]
if version == true then
version = Gem::Version.new Gem::VERSION
requirement = Gem::Requirement.new ">= #{Gem::VERSION}"
else
version = Gem::Version.new version
requirement = Gem::Requirement.new version
end
rubygems_update = Gem::Specification.new
rubygems_update.name = 'rubygems-update'
rubygems_update.version = version
hig = {
'rubygems-update' => rubygems_update
}
gems_to_update = which_to_update hig, options[:args], :system
name, up_ver = gems_to_update.first
current_ver = Gem::Version.new Gem::VERSION
target = if options[:system] == true then
up_ver
else
version
end
if current_ver == target then
# if options[:system] != true and version == current_ver then
say "Latest version currently installed. Aborting."
terminate_interaction
end
update_gem name, target
installed_gems = Gem::Specification.find_all_by_name 'rubygems-update', requirement
version = installed_gems.last.version
args = []
args << '--prefix' << Gem.prefix if Gem.prefix
args << '--no-rdoc' unless options[:generate_rdoc]
args << '--no-ri' unless options[:generate_ri]
args << '--no-format-executable' if options[:no_format_executable]
update_dir = File.join Gem.dir, 'gems', "rubygems-update-#{version}"
Dir.chdir update_dir do
say "Installing RubyGems #{version}"
setup_cmd = "#{Gem.ruby} setup.rb #{args.join ' '}"
# Make sure old rubygems isn't loaded
old = ENV["RUBYOPT"]
ENV.delete("RUBYOPT") if old
installed = system setup_cmd
say "RubyGems system software updated" if installed
ENV["RUBYOPT"] = old if old
end
end
def which_to_update highest_installed_gems, gem_names, system = false
result = []
highest_installed_gems.each do |l_name, l_spec|
next if not gem_names.empty? and
gem_names.all? { |name| /#{name}/ !~ l_spec.name }
dependency = Gem::Dependency.new l_spec.name, "> #{l_spec.version}"
fetcher = Gem::SpecFetcher.fetcher
spec_tuples = fetcher.find_matching dependency
matching_gems = spec_tuples.select do |(name, _, platform),|
name == l_name and Gem::Platform.match platform
end
highest_remote_gem = matching_gems.sort_by do |(_, version),|
version
end.last
highest_remote_gem ||= [[nil, Gem::Version.new(0), nil]] # "null" object
highest_remote_ver = highest_remote_gem.first[1]
if system or (l_spec.version < highest_remote_ver) then
result << [l_spec.name, [l_spec.version, highest_remote_ver].max]
end
end
result
end
end