// SetupLogging will initialize the logger backend and set the flags.
func SetupLogging() {
format, ok := LogFormats[os.Getenv(envLoggingFmt)]
if !ok {
format = LogFormats[defaultLogFormat]
}
log.Out = os.Stderr
log.Formatter = format
lvl := logrus.ErrorLevel
if logenv := os.Getenv(envLogging); logenv != "" {
var err error
lvl, err = logrus.ParseLevel(logenv)
if err != nil {
log.Debugf("logrus.ParseLevel() Error: %q", err)
lvl = logrus.ErrorLevel // reset to ERROR, could be undefined now(?)
}
}
if Debug := GetenvBool("IPFS_DEBUG"); Debug {
lvl = logrus.DebugLevel
}
SetAllLoggers(lvl)
}
// SetLogLevel changes the log level of a specific subsystem
// name=="*" changes all subsystems
func SetLogLevel(name, level string) error {
lvl, err := logrus.ParseLevel(level)
if err != nil {
return err
}
// wildcard, change all
if name == "*" {
SetAllLoggers(lvl)
return nil
}
// Check if we have a logger by that name
if _, ok := loggers[name]; !ok {
return ErrNoSuchLogger
}
loggers[name].Level = lvl
return nil
}