func addLevelsToBackend(config *util.Config, prefix string, backend logging.LeveledBackend) {
level, _ := logging.LogLevel(config.GetString(prefix+"level", defaultLogLevel))
backend.SetLevel(level, "")
modules := config.GetList(prefix+"modules", []interface{}{})
for _, rawModule := range modules {
module, _ := rawModule.(map[string]interface{})
moduleName, _ := module["name"].(string)
moduleLevel, _ := module["level"].(string)
level, err := logging.LogLevel(moduleLevel)
if moduleName == "" || err != nil {
continue
}
backend.SetLevel(level, moduleName)
}
}
func getLogger(name string, logConfig LogConfig) *logger.Logger {
mainLogger.Info("Make logger of %s at file %s", name, logConfig.Filename)
log1 := logger.MustGetLogger(name)
var leveledBackend logger.LeveledBackend
f, err := logger.NewStringFormatter("%{shortfile} %{time:2006-01-02T15:04:05} %{level:.1s} %{id:04d} %{module} %{message}")
if err != nil {
mainLogger.Info("failed to set format: %s", err)
}
logger.SetFormatter(f)
if logConfig.Filename != "" {
logFileName := logConfig.Filename
logFile, err := os.OpenFile(logFileName, os.O_RDWR|os.O_APPEND|os.O_CREATE, 0660)
backend := logger.NewLogBackend(logFile, "", 0)
if err != nil {
mainLogger.Error("Failed to open log file - " + logFileName)
panic(err)
} else {
leveledBackend = logger.AddModuleLevel(backend)
}
} else {
backend := logger.NewLogBackend(os.Stdout, "", 0)
leveledBackend = logger.AddModuleLevel(backend)
}
switch logConfig.Level {
case "debug":
leveledBackend.SetLevel(logger.NOTICE, name)
case "error":
logger.SetLevel(logger.ERROR, name)
case "info":
logger.SetLevel(logger.INFO, name)
case "warn":
logger.SetLevel(logger.WARNING, name)
}
log1.SetBackend(leveledBackend)
return log1
}