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dex/pkg/log/log.go

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Go
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2015-08-18 05:57:27 +05:30
package log
import (
"fmt"
"io"
"log"
"os"
)
const (
calldepth = 2
)
var (
logger = log.New(os.Stderr, "", 0)
debug = false
)
func EnableTimestamps() {
logger.SetFlags(logger.Flags() | log.Ldate | log.Ltime)
}
func EnableDebug() {
debug = true
}
func Debug(v ...interface{}) {
if debug {
logger.Output(calldepth, header("DEBUG", fmt.Sprint(v...)))
}
}
func Debugf(format string, v ...interface{}) {
if debug {
logger.Output(calldepth, header("DEBUG", fmt.Sprintf(format, v...)))
}
}
func Info(v ...interface{}) {
logger.Output(calldepth, header("INFO", fmt.Sprint(v...)))
}
func Infof(format string, v ...interface{}) {
logger.Output(calldepth, header("INFO", fmt.Sprintf(format, v...)))
}
func Error(v ...interface{}) {
logger.Output(calldepth, header("ERROR", fmt.Sprint(v...)))
}
func Errorf(format string, v ...interface{}) {
logger.Output(calldepth, header("ERROR", fmt.Sprintf(format, v...)))
}
func Warning(v ...interface{}) {
logger.Output(calldepth, header("WARN", fmt.Sprint(v...)))
}
func Warningf(format string, v ...interface{}) {
logger.Output(calldepth, header("WARN", fmt.Sprintf(format, v...)))
}
func Fatal(v ...interface{}) {
logger.Output(calldepth, header("FATAL", fmt.Sprint(v...)))
os.Exit(1)
}
func Fatalf(format string, v ...interface{}) {
logger.Output(calldepth, header("FATAL", fmt.Sprintf(format, v...)))
os.Exit(1)
}
func header(lvl, msg string) string {
return fmt.Sprintf("%s: %s", lvl, msg)
}
type logWriter string
func (l logWriter) Write(p []byte) (n int, err error) {
logger.Output(calldepth, header(string(l), string(p)))
return len(p), nil
}
func InfoWriter() io.Writer {
return logWriter("INFO")
}