class Bundler::Definition

def resolve
  @resolve ||= begin
    last_resolve = converge_locked_specs
    if Bundler.frozen_bundle?
      Bundler.ui.debug "Frozen, using resolution from the lockfile"
      last_resolve
    elsif !unlocking? && nothing_changed?
      Bundler.ui.debug("Found no changes, using resolution from the lockfile")
      last_resolve
    else
      # Run a resolve against the locally available gems
      Bundler.ui.debug("Found changes from the lockfile, re-resolving dependencies because #{change_reason}")
      expanded_dependencies = expand_dependencies(dependencies + metadata_dependencies, @remote)
      Resolver.resolve(expanded_dependencies, source_requirements, last_resolve, gem_version_promoter, additional_base_requirements_for_resolve, platforms)
    end
  end
end