json-related refactor

src/files/files.cpp

@@ -1,5 +1,6 @@
 #include "files.hpp"
 
+#include "../coders/commons.hpp"
 #include "../coders/json.hpp"
 #include "../coders/gzip.hpp"
 #include "../util/stringutil.hpp"
@@ -107,8 +108,7 @@ bool files::write_binary_json(fs::path filename, const dynamic::Map* obj, bool c
 std::shared_ptr<dynamic::Map> files::read_json(fs::path filename) {
     std::string text = files::read_string(filename);
     try {
-        auto obj = json::parse(filename.string(), text);
-        return obj;
+        return json::parse(filename.string(), text);;
     } catch (const parsing_error& error) {
         std::cerr << error.errorLog() << std::endl;
         throw std::runtime_error("could not to parse "+filename.string());