70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
// Package log implements a small wrapper around the std lib log package.
|
|
// It implements log levels by prefixing the logs with [INFO], [DEBUG],
|
|
// [WARNING] or [ERROR].
|
|
// Debug logging is available and enabled if the *debug* plugin is used.
|
|
//
|
|
// log.Info("this is some logging"), will log on the Info level.
|
|
//
|
|
// log.Debug("this is debug output"), will log in the Debug level.
|
|
package log
|
|
|
|
import (
|
|
"fmt"
|
|
golog "log"
|
|
)
|
|
|
|
// D controls whether we should output debug logs. If true, we do.
|
|
var D bool
|
|
|
|
// logf calls log.Printf prefixed with level.
|
|
func logf(level, format string, v ...interface{}) {
|
|
s := level + fmt.Sprintf(format, v...)
|
|
golog.Print(s)
|
|
}
|
|
|
|
// log calls log.Print prefixed with level.
|
|
func log(level string, v ...interface{}) { s := level + fmt.Sprint(v...); golog.Print(s) }
|
|
|
|
// Debug is equivalent to log.Print(), but prefixed with "[DEBUG] ". It only outputs something
|
|
// if D is true.
|
|
func Debug(v ...interface{}) {
|
|
if !D {
|
|
return
|
|
}
|
|
log(debug, v...)
|
|
}
|
|
|
|
// Debugf is equivalent to log.Printf(), but prefixed with "[DEBUG] ". It only outputs something
|
|
// if D is true.
|
|
func Debugf(format string, v ...interface{}) {
|
|
if !D {
|
|
return
|
|
}
|
|
logf(debug, format, v...)
|
|
}
|
|
|
|
// Info is equivalent to log.Print, but prefixed with "[INFO] ".
|
|
func Info(v ...interface{}) { log(info, v...) }
|
|
|
|
// Infof is equivalent to log.Printf, but prefixed with "[INFO] ".
|
|
func Infof(format string, v ...interface{}) { logf(info, format, v...) }
|
|
|
|
// Warning is equivalent to log.Print, but prefixed with "[WARNING] ".
|
|
func Warning(v ...interface{}) { log(warning, v...) }
|
|
|
|
// Warningf is equivalent to log.Printf, but prefixed with "[WARNING] ".
|
|
func Warningf(format string, v ...interface{}) { logf(warning, format, v...) }
|
|
|
|
// Error is equivalent to log.Print, but prefixed with "[ERROR] ".
|
|
func Error(v ...interface{}) { log(err, v...) }
|
|
|
|
// Errorf is equivalent to log.Printf, but prefixed with "[ERROR] ".
|
|
func Errorf(format string, v ...interface{}) { logf(err, format, v...) }
|
|
|
|
const (
|
|
debug = "[DEBUG] "
|
|
err = "[ERROR] "
|
|
warning = "[WARNING] "
|
|
info = "[INFO] "
|
|
)
|