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instance method
Gem::Commands::SetupCommand#uninstall_old_gemcutter
uninstall_old_gemcutter
lib/rubygems/commands/setup_command.rb
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# File tmp/rubies/ruby-3.0.5/lib/rubygems/commands/setup_command.rb, line 596
def uninstall_old_gemcutter
require_relative '../uninstaller'
ui = Gem::Uninstaller.new('gemcutter', :all => true, :ignore => true,
:version => '< 0.4')
ui.uninstall
rescue Gem::InstallError
end
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