file size check for zero rather than just exists

Signed-off-by: Dave Lee <[email protected]>

gopiper.cpp

@@ -29,16 +29,27 @@ using namespace std;
 int _piper_tts(char *text, char *model, char *espeakData, char *tashkeelPath, char *dst, optional<piper::SpeakerId> speakerId) {
   filesystem::path model_path;
   filesystem::path config_path;
+  error_code ec;
+  uintmax_t fsize;
+
   model_path = filesystem::path(std::string(model));
   config_path = filesystem::path(std::string(model) + ".json");
 
-  if (!filesystem::exists(model_path)) {
-    spdlog::debug("Error: Model path does not exist: ({})", model_path.c_str());
+  fsize = filesystem::file_size(model_path, &ec);
+  if (ec) {
+    spdlog::debug("Error while checking Model Path ({}) :: ({})", model_path.c_str(), ec.message());
+    return EXIT_FAILURE;
+  } else if (fsize == 0) {
+    spdlog::debug("Error while checking Model Path ({}) :: zero size", model_path.c_str());
     return EXIT_FAILURE;
   }
 
-  if (!filesystem::exists(config_path)) {
-    spdlog::debug("Error: Config path does not exist: ({})", config_path.c_str());
+  fsize = filesystem::file_size(config_path, &ec);
+  if (ec) {
+    spdlog::debug("Error while checking Model Path ({}) :: ({})", config_path.c_str(), ec.message());
+    return EXIT_FAILURE;
+  } else if (fsize == 0) {
+    spdlog::debug("Error while checking Model Path ({}) :: zero size", config_path.c_str());
     return EXIT_FAILURE;
   }