diskm8/loggy/logger.go

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2018-01-20 00:05:04 +00:00
package loggy
import (
"fmt"
"os"
"strings"
"time"
)
var logFile *os.File
var ECHO bool = false
var SILENT bool = false
var LogFolder string = "./logs/"
type Logger struct {
logFile *os.File
id int
app string
}
var loggers map[int]*Logger
var app string
func Get(id int) *Logger {
if loggers == nil {
loggers = make(map[int]*Logger)
}
l, ok := loggers[id]
if !ok {
l = NewLogger(id, app)
loggers[id] = l
}
return l
}
func NewLogger(id int, app string) *Logger {
if app == "" {
app = "dskalyzer"
}
filename := fmt.Sprintf("%s_%d_%s.log", app, id, fts())
os.MkdirAll(LogFolder, 0755)
logFile, _ = os.Create(LogFolder + filename)
l := &Logger{
id: id,
logFile: logFile,
app: app,
}
return l
}
func ts() string {
t := time.Now()
return fmt.Sprintf(
"%.4d/%.2d/%.2d %.2d:%.2d:%.2d",
t.Year(), t.Month(), t.Day(),
t.Hour(), t.Minute(), t.Second(),
)
}
func fts() string {
t := time.Now()
return fmt.Sprintf(
"%.4d%.2d%.2d%.2d%.2d%.2d",
t.Year(), t.Month(), t.Day(),
t.Hour(), t.Minute(), t.Second(),
)
}
func (l *Logger) llogf(format string, designator string, v ...interface{}) {
format = ts() + " " + designator + " :: " + format
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
l.logFile.WriteString(fmt.Sprintf(format, v...))
l.logFile.Sync()
if ECHO {
os.Stderr.WriteString(fmt.Sprintf(format, v...))
}
}
func (l *Logger) llog(designator string, v ...interface{}) {
format := ts() + " " + designator + " :: "
for _, vv := range v {
format += fmt.Sprintf("%v ", vv)
}
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
l.logFile.WriteString(format)
l.logFile.Sync()
if ECHO {
os.Stderr.WriteString(format)
}
}
func (l *Logger) Logf(format string, v ...interface{}) {
l.llogf(format, "INFO ", v...)
}
func (l *Logger) Log(v ...interface{}) {
l.llog("INFO ", v...)
}
func (l *Logger) Errorf(format string, v ...interface{}) {
l.llogf(format, "ERROR", v...)
}
func (l *Logger) Error(v ...interface{}) {
l.llog("ERROR", v...)
}
func (l *Logger) Debugf(format string, v ...interface{}) {
l.llogf(format, "DEBUG", v...)
}
func (l *Logger) Debug(v ...interface{}) {
l.llog("DEBUG", v...)
}
func (l *Logger) Fatalf(format string, v ...interface{}) {
l.llogf(format, "FATAL", v...)
}
func (l *Logger) Fatal(v ...interface{}) {
l.llog("FATAL", v...)
}