haven/nexgb/log.go

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package xgb
import (
"log"
"os"
)
// Log controls whether XGB emits errors to stderr. By default, it is enabled.
var PrintLog = true
// log is a wrapper around a log.PrintLogger so we can control whether it should
// output anything.
type xgblog struct {
*log.Logger
}
func newLogger() xgblog {
return xgblog{log.New(os.Stderr, "XGB: ", log.Lshortfile)}
}
func (lg xgblog) Print(v ...interface{}) {
if PrintLog {
lg.Logger.Print(v...)
}
}
func (lg xgblog) Printf(format string, v ...interface{}) {
if PrintLog {
lg.Logger.Printf(format, v...)
}
}
func (lg xgblog) Println(v ...interface{}) {
if PrintLog {
lg.Logger.Println(v...)
}
}
func (lg xgblog) Fatal(v ...interface{}) {
if PrintLog {
lg.Logger.Fatal(v...)
} else {
os.Exit(1)
}
}
func (lg xgblog) Fatalf(format string, v ...interface{}) {
if PrintLog {
lg.Logger.Fatalf(format, v...)
} else {
os.Exit(1)
}
}
func (lg xgblog) Fatalln(v ...interface{}) {
if PrintLog {
lg.Logger.Fatalln(v...)
} else {
os.Exit(1)
}
}
func (lg xgblog) Panic(v ...interface{}) {
if PrintLog {
lg.Logger.Panic(v...)
} else {
panic("")
}
}
func (lg xgblog) Panicf(format string, v ...interface{}) {
if PrintLog {
lg.Logger.Panicf(format, v...)
} else {
panic("")
}
}
func (lg xgblog) Panicln(v ...interface{}) {
if PrintLog {
lg.Logger.Panicln(v...)
} else {
panic("")
}
}