Gem.find_spec_for_exe

# File tmp/rubies/ruby-3.0.5/lib/rubygems.rb, line 258
def self.find_spec_for_exe(name, exec_name, requirements)
  raise ArgumentError, "you must supply exec_name" unless exec_name

  dep = Gem::Dependency.new name, requirements

  loaded = Gem.loaded_specs[name]

  return loaded if loaded && dep.matches_spec?(loaded)

  specs = dep.matching_specs(true)

  specs = specs.find_all do |spec|
    spec.executables.include? exec_name
  end if exec_name

  unless spec = specs.first
    msg = "can't find gem #{dep} with executable #{exec_name}"
    if dep.filters_bundler? && bundler_message = Gem::BundlerVersionFinder.missing_version_message
      msg = bundler_message
    end
    raise Gem::GemNotFoundException, msg
  end

  spec
end