class Dependabot::Uv::UpdateChecker::RequirementsUpdater

def index_to_update_for(req_string)
  req = requirement_class.new(req_string.split(/[.\-]\*/).first)
  version = req.requirements.first.last.release
  if req_string.strip.start_with?("^")
    version.segments.index { |i| i != 0 }
  elsif req_string.include?("*")
    version.segments.count - 1
  elsif req_string.strip.start_with?("~=", "==")
    version.segments.count - 2
  elsif req_string.strip.start_with?("~")
    req_string.split(".").count == 1 ? 0 : 1
  else
    raise "Don't know how to convert #{req_string} to range"
  end
end