asg_component_factory_scanner.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/

 
 
//
// includes
//
 
#include <AsgTools/AsgComponentFactories.h>
#include <AsgTools/MessageCheckAsgTools.h>
#include <fstream>
 
//
// program implementation
//
 
using namespace asg;
using namespace asg::msgComponentConfig;

 
int main (int argc, char **argv)
{
  if (argc != 3)
  {
    ATH_MSG_ERROR ("usage: " << argv[0] << " <module path> <output file>");
    return 1;
  }
 
  const std::string modulePathName = argv[1];
  const std::string outputFile = argv[2];
 
  std::string modulePath, moduleName;
  {
    const auto pos = modulePathName.find_last_of ('/');
    if (pos != std::string::npos)
    {
      modulePath = modulePathName.substr (0, pos);
      moduleName = modulePathName.substr (pos + 1);
    }
    else
    {
      modulePath = ".";
      moduleName = modulePathName;
    }
  }
 
  if (auto types = getLoadedComponentFactoryTypes (); !types.empty())
  {
    ANA_MSG_ERROR ("already loaded component factory types:");
    for (const auto& type : types)
      ANA_MSG_ERROR ("  " << type);
    return 1;
  }
 
  ATH_MSG_DEBUG ("loading component factory preloader module from " << modulePath << " with name " << moduleName);
  loadComponentFactoryModule (moduleName, modulePath);
 
  std::ofstream outputStream (outputFile);
  for (auto& type : getLoadedComponentFactoryTypes ())
  {
    ANA_MSG_DEBUG ("module loaded type " << type);
    outputStream << moduleName << " " << type << "\n";
  }
 
  return 0;
}