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jfa-go/logger.go

46 lines
1.3 KiB
Go

package main
import (
"io"
"log"
c "github.com/fatih/color"
)
type Logger interface {
Printf(format string, v ...interface{})
Print(v ...interface{})
Println(v ...interface{})
Fatal(v ...interface{})
Fatalf(format string, v ...interface{})
}
type logger struct {
logger *log.Logger
printer *c.Color
}
func NewLogger(out io.Writer, prefix string, flag int, color c.Attribute) (l logger) {
l.logger = log.New(out, prefix, flag)
l.printer = c.New(color)
return l
}
func (l logger) Printf(format string, v ...interface{}) {
l.logger.Print(l.printer.Sprintf(format, v...))
}
func (l logger) Print(v ...interface{}) { l.logger.Print(l.printer.Sprint(v...)) }
func (l logger) Println(v ...interface{}) { l.logger.Print(l.printer.Sprintln(v...)) }
func (l logger) Fatal(v ...interface{}) { l.logger.Fatal(l.printer.Sprint(v...)) }
func (l logger) Fatalf(format string, v ...interface{}) {
l.logger.Fatal(l.printer.Sprintf(format, v...))
}
type emptyLogger bool
func (l emptyLogger) Printf(format string, v ...interface{}) {}
func (l emptyLogger) Print(v ...interface{}) {}
func (l emptyLogger) Println(v ...interface{}) {}
func (l emptyLogger) Fatal(v ...interface{}) {}
func (l emptyLogger) Fatalf(format string, v ...interface{}) {}