forked from DominicBreuker/pspy
/
logging.go
63 lines (54 loc) · 1.22 KB
/
logging.go
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package logging
import (
"fmt"
"hash/fnv"
"log"
"os"
"strconv"
)
const (
ColorNone = iota
ColorRed
ColorGreen
ColorYellow
ColorBlue
ColorPurple
ColorTeal
)
type Logger struct {
infoLogger *log.Logger
errorLogger *log.Logger
eventLogger *log.Logger
debug bool
}
func NewLogger(debug bool) *Logger {
return &Logger{
infoLogger: log.New(os.Stdout, "", 0),
errorLogger: log.New(os.Stderr, "", 0),
eventLogger: log.New(os.Stdout, "", log.Ldate|log.Ltime),
debug: debug,
}
}
// Infof writes an info message to stdout
func (l *Logger) Infof(format string, v ...interface{}) {
l.infoLogger.Printf(format, v...)
}
// Errorf writes an error message to stderr
func (l *Logger) Errorf(debug bool, format string, v ...interface{}) {
if l.debug == debug {
l.errorLogger.Printf(format, v...)
}
}
// Eventf writes an event with timestamp to stdout
func (l *Logger) Eventf(color int, format string, v ...interface{}) {
msg := fmt.Sprintf(format, v...)
if color != ColorNone {
msg = fmt.Sprintf("\x1b[%d;1m%s\x1b[0m", 30+color, msg)
}
l.eventLogger.Printf("%s", msg)
}
func GetColorByUID(uid int) int {
h := fnv.New32a()
h.Write([]byte(strconv.Itoa(uid)))
return (int(h.Sum32()) % (ColorTeal)) + 1
}