Method ReadSettings

Source/cmGraphVizWriter.cxx:197–270

}

void cmGraphVizWriter::ReadSettings(
  std::string const& settingsFileName,
  std::string const& fallbackSettingsFileName)
{
  cmake cm(cmState::Role::Script);
  cm.GetCurrentSnapshot().SetDefaultDefinitions();
  cmGlobalGenerator ggi(&cm);
  cmMakefile mf(&ggi, cm.GetCurrentSnapshot());
  std::unique_ptr<cmLocalGenerator> lg(ggi.CreateLocalGenerator(&mf));

  std::string inFileName = settingsFileName;
  if (!cmSystemTools::FileExists(inFileName)) {
    inFileName = fallbackSettingsFileName;
    if (!cmSystemTools::FileExists(inFileName)) {
      return;
    }
  }

  if (!mf.ReadListFile(inFileName)) {
    cmSystemTools::Error("Problem opening GraphViz options file: " +
                         inFileName);
    return;
  }

  std::cout << "Reading GraphViz options file: " << inFileName << std::endl;

#define set_if_set(var, cmakeDefinition)                                      \
  do {                                                                        \
    cmValue value = mf.GetDefinition(cmakeDefinition);                        \
    if (value) {                                                              \
      (var) = *value;                                                         \
    }                                                                         \
  } while (false)

  set_if_set(this->GraphName, "GRAPHVIZ_GRAPH_NAME");
  set_if_set(this->GraphHeader, "GRAPHVIZ_GRAPH_HEADER");
  set_if_set(this->GraphNodePrefix, "GRAPHVIZ_NODE_PREFIX");

#define set_bool_if_set(var, cmakeDefinition)                                 \
  do {                                                                        \
    cmValue value = mf.GetDefinition(cmakeDefinition);                        \
    if (value) {                                                              \
      (var) = cmIsOn(*value);                                                 \
    }                                                                         \
  } while (false)

  set_bool_if_set(this->GenerateForExecutables, "GRAPHVIZ_EXECUTABLES");
  set_bool_if_set(this->GenerateForStaticLibs, "GRAPHVIZ_STATIC_LIBS");
  set_bool_if_set(this->GenerateForSharedLibs, "GRAPHVIZ_SHARED_LIBS");
  set_bool_if_set(this->GenerateForModuleLibs, "GRAPHVIZ_MODULE_LIBS");
  set_bool_if_set(this->GenerateForInterfaceLibs, "GRAPHVIZ_INTERFACE_LIBS");
  set_bool_if_set(this->GenerateForObjectLibs, "GRAPHVIZ_OBJECT_LIBS");
  set_bool_if_set(this->GenerateForUnknownLibs, "GRAPHVIZ_UNKNOWN_LIBS");
  set_bool_if_set(this->GenerateForCustomTargets, "GRAPHVIZ_CUSTOM_TARGETS");
  set_bool_if_set(this->GenerateForExternals, "GRAPHVIZ_EXTERNAL_LIBS");
  set_bool_if_set(this->GeneratePerTarget, "GRAPHVIZ_GENERATE_PER_TARGET");
  set_bool_if_set(this->GenerateDependers, "GRAPHVIZ_GENERATE_DEPENDERS");