func SetupLogger(logger *logrus.Logger) {
fmter := &prefixed.TextFormatter{}
logger.Formatter = fmter
logger.Out = os.Stdout
// Only log the info severity or above.
logger.Level = logrus.InfoLevel
}
// Create a logrus logger that writes its out output to a buffer for inspection
func getLogrusLogger() (*logrus.Logger, *bytes.Buffer) {
var logrusLogger *logrus.Logger = logrus.New()
buffer := &bytes.Buffer{}
logrusLogger.Out = buffer
logrusLogger.Formatter = new(logrus.JSONFormatter)
logrusLogger.Level = logrus.DebugLevel
return logrusLogger, buffer
}
// Build an adequate instance of the structured logger for this
// application instance. The journal builder may draw data from the
// app instance to configure the journal correctly. This method only
// instantiates a very basic journal; anything more complicated than
// that should be implementing using a boot.Provider to do it.
func (app *App) makeJournal(level logrus.Level) *logrus.Logger {
const m = "begin writing application journal"
var journal *logrus.Logger = &logrus.Logger{}
formatter := new(logrus.TextFormatter) // std
journal.Level = level // use requested level
journal.Out = os.Stdout // all goes to stdout
journal.Hooks = make(logrus.LevelHooks) // empty
journal.Formatter = formatter // set formatter
formatter.ForceColors = false // act smart
formatter.DisableColors = false // make pretty
formatter.DisableTimestamp = false // is useful
formatter.FullTimestamp = false // numbers
formatter.TimestampFormat = time.StampMilli
formatter.DisableSorting = false // order!
moment := time.Now().Format(app.TimeLayout)
journal.WithField("time", moment).Info(m)
return journal // is ready to use
}
func main() {
var logrusLogger *logrus.Logger = logrus.New()
logrusLogger.Formatter = new(logrus.JSONFormatter)
if len(os.Args) != 2 {
logrus.Error("Must pass an arg to test program...")
os.Exit(0)
}
switch os.Args[1] {
case "logrus.Fatal":
logrusLogger.Fatal("fatal error")
case "logrus.Fatalf":
logrusLogger.Fatalf("fatal error%s", "fatal error")
case "bark.Fatal":
bark.NewLoggerFromLogrus(logrusLogger).Fatal("fatal error")
case "bark.Fatalf":
bark.NewLoggerFromLogrus(logrusLogger).Fatalf("fatal error%s", "fatal error")
}
logrus.Error("Expected fatal methods to exit...")
os.Exit(0)
}