Allow overriding nb_searches and depth for debug purposes.

src/main.cpp

@@ -86,13 +86,22 @@ int main(int argc, char** argv) {
      cxxopts::value<std::string>(cl_args.input));
 
   // we don't want to print debug args on --help
+  std::optional<unsigned> debug_depth;
+  std::optional<unsigned> debug_nb_searches;
+
   options.add_options("debug_group")
     ("e,heuristic-param",
      "Heuristic parameter",
      cxxopts::value<std::vector<std::string>>(heuristic_params_arg))
     ("f,apply-tsp-fix",
      "apply experimental TSPFix local search operator",
-     cxxopts::value<bool>(cl_args.apply_TSPFix)->default_value("false"));
+     cxxopts::value<bool>(cl_args.apply_TSPFix)->default_value("false"))
+    ("d,depth",
+     "search depth",
+     cxxopts::value<std::optional<unsigned>>(debug_depth))
+    ("s,nb-searches",
+     "number of searches to perform in parallel",
+     cxxopts::value<std::optional<unsigned>>(debug_nb_searches));
 
   // clang-format on
   try {
@@ -156,6 +165,12 @@ int main(int argc, char** argv) {
   }
   exploration_level = std::min(exploration_level, vroom::MAX_EXPLORATION_LEVEL);
   vroom::io::set_exploration_level(cl_args, exploration_level);
+  if (debug_depth) {
+    cl_args.depth = debug_depth.value();
+  }
+  if (debug_nb_searches) {
+    cl_args.nb_searches = debug_nb_searches.value();
+  }
 
   // Determine routing engine (defaults to ROUTER::OSRM).
   if (router_arg == "libosrm") {