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instance method
Gem::Installer#write_spec
write_spec
lib/rubygems/installer.rb
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# File tmp/rubies/ruby-3.4.1/lib/rubygems/installer.rb, line 442
def write_spec
spec.installed_by_version = Gem.rubygems_version
Gem.write_binary(spec_file, spec.to_ruby_for_cache)
end
Writes the .gemspec specification (in Ruby) to the gem home’s specifications directory.