diff options
Diffstat (limited to 'src/log.cpp')
| -rw-r--r-- | src/log.cpp | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/src/log.cpp b/src/log.cpp index c84a847a5..30344b4df 100644 --- a/src/log.cpp +++ b/src/log.cpp @@ -310,16 +310,32 @@ void Logger::logToOutputs(LogLevel lev, const std::string &combined, //// *LogOutput methods //// -void FileLogOutput::open(const std::string &filename) +void FileLogOutput::setFile(const std::string &filename, s64 file_size_max) { - m_stream.open(filename.c_str(), std::ios::app | std::ios::ate); + // Only move debug.txt if there is a valid maximum file size + bool is_too_large = false; + if (file_size_max > 0) { + std::ifstream ifile(filename, std::ios::binary | std::ios::ate); + is_too_large = ifile.tellg() > file_size_max; + ifile.close(); + } + + if (is_too_large) { + std::string filename_secondary = filename + ".1"; + actionstream << "The log file grew too big; it is moved to " << + filename_secondary << std::endl; + remove(filename_secondary.c_str()); + rename(filename.c_str(), filename_secondary.c_str()); + } + m_stream.open(filename, std::ios::app | std::ios::ate); + if (!m_stream.good()) throw FileNotGoodException("Failed to open log file " + filename + ": " + strerror(errno)); m_stream << "\n\n" - "-------------" << std::endl - << " Separator" << std::endl - << "-------------\n" << std::endl; + "-------------" << std::endl << + " Separator" << std::endl << + "-------------\n" << std::endl; } |