Store metadata about original OSM data, and return it in the API response, if available.

src/extractor/extractor.cpp

@@ -51,6 +51,7 @@
 #include <osmium/handler/node_locations_for_ways.hpp>
 #include <osmium/index/map/flex_mem.hpp>
 #include <osmium/io/any_input.hpp>
+#include <osmium/osm/timestamp.hpp>
 #include <osmium/thread/pool.hpp>
 #include <osmium/visitor.hpp>
 
@@ -425,6 +426,14 @@ Extractor::ParseOSMData(ScriptingEnvironment &scripting_environment,
 
         // write .timestamp data file
         std::string timestamp = header.get("osmosis_replication_timestamp");
+        if (config.data_version == "osmosis")
+        {
+            files::writeTimestamp(config.GetPath(".osrm.timestamp").string(), timestamp);
+        }
+        else
+        {
+            files::writeTimestamp(config.GetPath(".osrm.timestamp").string(), config.data_version);
+        }
         if (timestamp.empty())
         {
             timestamp = "n/a";

src/storage/storage.cpp

@@ -302,6 +302,7 @@ std::vector<std::pair<bool, boost::filesystem::path>> Storage::GetStaticFiles()
         {REQUIRED, config.GetPath(".osrm.ebg_nodes")},
         {REQUIRED, config.GetPath(".osrm.tls")},
         {REQUIRED, config.GetPath(".osrm.tld")},
+        {REQUIRED, config.GetPath(".osrm.timestamp")},
         {REQUIRED, config.GetPath(".osrm.maneuver_overrides")},
         {REQUIRED, config.GetPath(".osrm.edges")},
         {REQUIRED, config.GetPath(".osrm.names")},
@@ -401,6 +402,17 @@ void Storage::PopulateStaticData(const SharedDataIndex &index)
         extractor::files::readNames(config.GetPath(".osrm.names"), name_table);
     }
 
+    // Timestamp mark
+    {
+        auto timestamp_ref = make_timestamp_view(index, "/common/timestamp");
+        std::string ts;
+        extractor::files::readTimestamp(config.GetPath(".osrm.timestamp"), ts);
+        if (!ts.empty())
+        {
+            memcpy(const_cast<char *>(timestamp_ref.data()), ts.data(), ts.size());
+        }
+    }
+
     // Turn lane data
     {
         auto turn_lane_data = make_lane_data_view(index, "/common/turn_lanes");

src/tools/extract.cpp

@@ -43,6 +43,10 @@ return_code parseArguments(int argc,
         boost::program_options::value<boost::filesystem::path>(&extractor_config.profile_path)
             ->default_value("profiles/car.lua"),
         "Path to LUA routing profile")(
+        "data_version,d",
+        boost::program_options::value<std::string>(&extractor_config.data_version)
+            ->default_value(""),
+        "Data version. Leave blank to avoid. osmosis - to get timestamp from file")(
         "threads,t",
         boost::program_options::value<unsigned int>(&extractor_config.requested_num_threads)
             ->default_value(tbb::task_scheduler_init::default_num_threads()),