End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

Gem.pre_uninstall

pre_uninstall(&hook)

# File tmp/rubies/ruby-3.1.3/lib/rubygems.rb, line 732
def self.pre_uninstall(&hook)
  @pre_uninstall_hooks << hook
end

Adds a pre-uninstall hook that will be passed an Gem::Uninstaller instance and the spec that will be uninstalled when Gem::Uninstaller#uninstall is called

See also .pre_reset .read_binary .pre_install .refresh also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.0