Go: Implementation of a universal log module

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In go, although there is a log module, but the module does not provide a strong function, for example, there is no common level log function, but it is not difficult to implement a log module.

For the level of log, we define the following:

const (    LevelTrace = iota    LevelDebug    LevelInfo    LevelWarn    LevelError    LevelFatal)    

Accordingly, several functions are provided:

In addition, for a log, we may write it to different places, such as may be directly output to stdout, or write a file, or write a socket, when creating a specific logger, we need to specify the corresponding handler, to implement different writing methods.

Handler is defined as follows:

type Handler interface {    Write(p []byte) (n int, err error)    Close() error}

We can refer to the Python log module to implement several common handler, such as Streamhandler,filehandler,timerotatingfilehandler.

The implementation of the log module is Https://github.com/siddontang/golib/tree/master/log.

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