[Cleanup] Add getParameters()

src/sand-wedge.cc

@@ -85,16 +85,24 @@ void initPython(fs::path const &dataDirectory) {
       str(boost::format("sys.path.append('%s')") % dataDirectory.string()));
 }
 
+Dune::ParameterTree getParameters(int argc, char *argv[],
+                                  fs::path const &dataDirectory) {
+  Dune::ParameterTree parset;
+  std::string sharedParsetName("parset.cfg");
+  fs::path sharedParsetPath(dataDirectory / fs::path(sharedParsetName));
+  Dune::ParameterTreeParser::readINITree(sharedParsetPath.string(), parset);
+
+  Dune::ParameterTreeParser::readOptions(argc, argv, parset);
+
+  return parset;
+}
+
 int main(int argc, char *argv[]) {
   try {
     auto const dataDirectory =
         fs::system_complete(fs::path(argv[0])).parent_path() /
         fs::path("sand-wedge-data");
-
-    Dune::ParameterTree parset;
-    Dune::ParameterTreeParser::readINITree(
-        (dataDirectory / fs::path("parset.cfg")).string(), parset);
-    Dune::ParameterTreeParser::readOptions(argc, argv, parset);
+    auto const parset = getParameters(argc, argv, dataDirectory);
 
     MyGeometry::render();
     MyGeometry::write();