+ pkgAcquire::ItemDesc &desc = Owner->GetItemDesc();
+ // if we change site, treat it as a mirror change
+ if (URI::SiteOnly(NewURI) != URI::SiteOnly(desc.URI))
+ {
+ std::string const OldSite = desc.Description.substr(0, desc.Description.find(" "));
+ if (likely(APT::String::Startswith(desc.URI, OldSite)))
+ {
+ std::string const OldExtra = desc.URI.substr(OldSite.length() + 1);
+ if (likely(APT::String::Endswith(NewURI, OldExtra)))
+ {
+ std::string const NewSite = NewURI.substr(0, NewURI.length() - OldExtra.length());
+ Owner->UsedMirror = URI::ArchiveOnly(NewSite);
+ if (desc.Description.find(" ") != string::npos)
+ desc.Description.replace(0, desc.Description.find(" "), Owner->UsedMirror);
+ }
+ }
+ }