Method Load

libraries/lib-module-manager/PluginManager.cpp:534–610

}

void PluginManager::Load()
{
   // Create/Open the registry
   auto pRegistry = sFactory(FileNames::PluginRegistry());
   auto &registry = *pRegistry;

   // If this group doesn't exist then we have something that's not a registry.
   // We should probably warn the user, but it's pretty unlikely that this will happen.
   if (!registry.HasGroup(REGROOT))
   {
      // Must start over
      // This DeleteAll affects pluginregistry.cfg only, not audacity.cfg
      // That is, the memory of on/off states of effect (and generator,
      // analyzer, and tool) plug-ins
      registry.Clear();
      registry.Flush();
      return;
   }

   // Check for a registry version that we can understand
   // TODO: Should also check for a registry file that is newer than
   // what we can understand.
   mRegver = registry.Read(REGVERKEY);
   if (Regver_lt(mRegver, "1.1")) {
      // Conversion code here, for when registry version changes.

      // We iterate through the effects, possibly updating their info.
      wxString group = GetPluginTypeString(PluginTypeEffect);
      wxString cfgPath = REGROOT + group + wxCONFIG_PATH_SEPARATOR;
      wxArrayString groupsToDelete;

      auto cfgGroup = registry.BeginGroup(cfgPath);
      for(const auto& groupName : registry.GetChildGroups())
      {
         auto effectGroup = registry.BeginGroup(groupName);
         wxString effectSymbol = registry.Read(KEY_SYMBOL, "");
         wxString effectVersion = registry.Read(KEY_VERSION, "");


         // For 2.3.0 the plugins we distribute have moved around.
         // So we upped the registry version number to 1.1.
         // These particular config edits were originally written to fix Bug 1914.
         if (Regver_le(mRegver, "1.0")) {
            // Nyquist prompt is a built-in that has moved to the tools menu.
            if (effectSymbol == NYQUIST_PROMPT_ID) {
               registry.Write(KEY_EFFECTTYPE, "Tool");
            // Old version of SDE was in Analyze menu.  Now it is in Tools.
            // We don't want both the old and the new.
            } else if ((effectSymbol == "Sample Data Export") && (effectVersion == "n/a")) {
               groupsToDelete.push_back(cfgPath + groupName);
            // Old version of SDI was in Generate menu.  Now it is in Tools.
            } else if ((effectSymbol == "Sample Data Import") && (effectVersion == "n/a")) {
               groupsToDelete.push_back(cfgPath + groupName);
            }
         }
      }
      // Doing the deletion within the search loop risked skipping some items,
      // hence the delayed delete.