Restore booking flow.

Signed-off-by: Viktor Govako <viktor.govako@gmail.com>

generator/utils.cpp

@@ -98,6 +98,27 @@ std::unique_ptr<FeatureType> FeatureGetter::GetFeatureByIndex(uint32_t index) co
   return m_guard->GetFeatureByIndex(index);
 }
 
+void LoadDataSource(DataSource & dataSource)
+{
+  std::vector<platform::LocalCountryFile> localFiles;
+
+  Platform & platform = GetPlatform();
+  platform::FindAllLocalMapsInDirectoryAndCleanup(platform.WritableDir(), 0 /* version */,
+                                                  -1 /* latestVersion */, localFiles);
+  for (auto const & localFile : localFiles)
+  {
+    LOG(LINFO, ("Found mwm:", localFile));
+    try
+    {
+      dataSource.RegisterMap(localFile);
+    }
+    catch (RootException const & ex)
+    {
+      CHECK(false, (ex.Msg(), "Bad mwm file:", localFile));
+    }
+  }
+}
+
 bool ParseFeatureIdToOsmIdMapping(std::string const & path,
                                   std::unordered_map<uint32_t, base::GeoObjectId> & mapping)
 {