Move debug.txt after it grows too big (#8904)

Before opening the file for writing, its file size is tested. If it exceeds 50 MB, it is moved to debut.txt.1, otherwise the log is appended to the old messages. An old debut.txt.1 is removed if it already exists.

1 files changed, 4 insertions, 5 deletions

diff --git a/src/main.cpp b/src/main.cpp
index bd83f9638..6323fa50e 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -172,7 +172,7 @@ int main(int argc, char *argv[])
 		} else {
 			errorstream << "Invalid --worldlist value: "
 				<< cmd_args.get("worldlist") << std::endl;
-			return 1; 
+			return 1;
 		}
 		return 0;
 	}
@@ -426,7 +426,7 @@ static bool setup_log_params(const Settings &cmd_args)
 		} else {
 			errorstream << "Invalid color mode: " << color_mode << std::endl;
 			return false;
-		}			
+		}
 	}
 
 	// If trace is enabled, enable logging of certain things
@@ -580,9 +580,8 @@ static void init_log_streams(const Settings &cmd_args)
 			"using maximum." << std::endl;
 	}
 
-	verbosestream << "log_filename = " << log_filename << std::endl;
-
-	file_log_output.open(log_filename);
+	file_log_output.setFile(log_filename,
+		g_settings->getU64("debug_log_size_max") * 1000000);
 	g_logger.addOutputMaxLevel(&file_log_output, log_level);
 }