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Keep more old log files

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Suggested on the tracker, keep log files around longer. Currently we
keep the previous ten files.

Note we still don’t log for secondary running copies, since this would
violate the ‘only one copy can write to FGHome’ principle.

https://sourceforge.net/p/flightgear/codetickets/2243/
This commit is contained in:
James Turner 2020-06-26 10:13:13 +01:00
parent 4a568a42e4
commit de89d72593
1 changed files with 22 additions and 6 deletions
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28
src/Main/main.cxx
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@ -506,6 +506,27 @@ extern "C" {
}
#endif
static void rotateOldLogFiles()
{
const int maxLogCount = 10;
const auto homePath = globals->get_fg_home();
for (int i = maxLogCount; i > 0; --i) {
const auto name = "fgfs_" + std::to_string(i - 1) + ".log";
SGPath curLogFile = homePath / name;
if (curLogFile.exists()) {
auto newName = "fgfs_" + std::to_string(i) + ".log";
curLogFile.rename(homePath / newName);
}
}
SGPath p = homePath / "fgfs.log";
if (!p.exists())
return;
SGPath log0Path = homePath / "fgfs_0.log";
p.rename(log0Path);
}
static void logToHome(const std::string& pri)
{
sgDebugPriority fileLogLevel = SG_INFO;
@ -521,12 +542,7 @@ static void logToHome(const std::string& pri)
SGPath logPath = globals->get_fg_home();
logPath.append("fgfs.log");
if (logPath.exists()) {
SGPath prevLogPath = globals->get_fg_home();
prevLogPath.append("fgfs_0.log");
logPath.rename(prevLogPath);
// bit strange, we need to restore the correct value of logPath now
logPath = globals->get_fg_home();
logPath.append("fgfs.log");
rotateOldLogFiles();
}
sglog().logToFile(logPath, SG_ALL, fileLogLevel);