A simple logger. No dependencies, no special features, just logging.

About

Simplog was created due to the unsuccessful search for a small and simple logging system. I needed a system that's exactly in the middle between 'does-what-it-should' and 'no-overkill'. Besides that I just wanted to write a logging library myself for fun.

If you like it and/or if it is useful for you, it has already more than fulfilled its purpose. Contributions are still welcome but just remember that this logger is intentionally kept simple.

Install

go get -u github.com/nikoksr/simplog

Example Code

// Open log file
logPath := "simple.log"

f, err := os.OpenFile(logPath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
	log.Fatalf("could not open log file %s. %v", logPath, err)
}

// Create logger
var l = simplog.New("Core", false, f)
if err != nil {
    log.Fatalf("could not create logger %v", err)
}

// Set lowest log level to info
l.SetLevel(simplog.Info)

// Log messages with different levels of importance.
l.Info("You're awesome!")
l.Warning("Coffee is almost empty.")

// The following message will not be logged because 'Info' was set
// as the lowest allowed log level.
//
// Log Levels (lowest -> highest):
//  - Debug
//  - Info
//  - Warning
//  - Error
//  - Fatal
// 
// Log messages support fmt.Printf style by default.
l.Debug("%d should be equal to %d.", aNumber, anotherNumber)

Example Output

CORE 2020/03/18 17:13:24 main.go:24: INFO You're awesome!
CORE 2020/03/18 17:13:24 main.go:26: WARN Coffee is almost empty.    

Credits

• Logo from MariaLetta/free-gophers-pack