End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Gem::Package::TarWriter#flush
flush
lib/rubygems/package/tar_writer.rb
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# File tmp/rubies/ruby-3.0.5/lib/rubygems/package/tar_writer.rb, line 275
def flush
check_closed
@io.flush if @io.respond_to? :flush
end
Flushes the TarWriter’s IO