// NewRotatableLogger creates a rotatable file logger with buffering and a priority filter
// Note: if path is empty, logs will be written to stdout
func NewRotatableLogger(path, format string, fields []string, logLevel int, verbose bool) (*Logger, error) {
var sinks []log.Sink
if len(path) > 0 {
rfw, err := NewRotatableFileWriter(
path,
os.O_CREATE|os.O_APPEND|os.O_WRONLY,
os.FileMode(0644),
5*time.Second)
if err != nil {
return nil, err
}
sinks = []log.Sink{
NewCloseablePriorityFilter(
log.Priority(logLevel),
NewCloseableBufferedWriterSink(1<<8, rfw, format, fields),
),
}
} else {
sinks = []log.Sink{
log.PriorityFilter(
log.Priority(logLevel),
log.WriterSink(os.Stdout, format, fields),
),
}
}
return NewLogger("", verbose, sinks...), nil
}
func Priority(p int) string {
return log.Priority(p).String()
}