Tools/mapextractor: Don't print updating progress % when sending output to file instead of console

src/tools/map_extractor/System.cpp

@@ -36,6 +36,11 @@
 #include <unordered_map>
 #include <cstdlib>
 #include <cstring>
+#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
 
 std::shared_ptr<CASC::Storage> CascStorage;
 
@@ -68,6 +73,7 @@ std::unordered_map<uint32, LiquidMaterialEntry> LiquidMaterials;
 std::unordered_map<uint32, LiquidObjectEntry> LiquidObjects;
 std::unordered_map<uint32, LiquidTypeEntry> LiquidTypes;
 std::set<uint32> CameraFileDataIds;
+bool PrintProgress = true;
 boost::filesystem::path input_path;
 boost::filesystem::path output_path;
 
@@ -1149,7 +1155,8 @@ void ExtractMaps(uint32 build)
                 }
 
                 // draw progress bar
-                printf("Processing........................%d%%\r", (100 * (y + 1)) / WDT_MAP_SIZE);
+                if (PrintProgress)
+                    printf("Processing........................%d%%\r", (100 * (y + 1)) / WDT_MAP_SIZE);
             }
         }
 
@@ -1483,6 +1490,7 @@ int main(int argc, char * arg[])
 {
     Trinity::Banner::Show("Map & DBC Extractor", [](char const* text) { printf("%s\n", text); }, nullptr);
 
+    PrintProgress = isatty(fileno(stdout));
     input_path = boost::filesystem::current_path();
     output_path = boost::filesystem::current_path();