# File lib/rubygems/commands/setup_command.rb, line 351 def remove_source_caches(install_destdir) if install_destdir.empty? require 'rubygems/source_info_cache' user_cache_file = File.join(install_destdir, Gem::SourceInfoCache.user_cache_file) system_cache_file = File.join(install_destdir, Gem::SourceInfoCache.system_cache_file) say "Removing old source_cache files" if Gem.configuration.really_verbose rm_f user_cache_file if File.writable? File.dirname(user_cache_file) rm_f system_cache_file if File.writable? File.dirname(system_cache_file) end end