func (h *TimedRotatingFileHook) doRollover() {
if h.debug {
fmt.Fprintf(os.Stderr, "[DEBUG] Start to rotate the log file.\n")
}
h.file.Close()
dstTime := h.rotatorAt - h.interval
dstPath := h.filename + "." + time.Unix(dstTime, 0).Format(h.suffix)
if file.IsExist(dstPath) {
os.Remove(dstPath)
}
if file.IsFile(h.filename) {
err := os.Rename(h.filename, dstPath)
if err != nil {
fmt.Fprintf(os.Stderr, "Unable to rename %v to %v\n", h.filename, dstPath)
}
}
if h.backupCount > 0 {
files := h.getFilesToDelete()
for _, f := range files {
if h.debug {
fmt.Fprintf(os.Stderr, "[DEBUG] Delete the old log file: %v\n", f)
}
os.Remove(f)
}
}
h.file.Open()
h.ReComputeRollover()
}
func (self *TimedRotatingFile) doRollover() (err error) {
if err = self.Close(); err != nil {
return
}
dstTime := self.rotatorAt - self.interval
dstPath := self.filename + "." + time.Unix(dstTime, 0).Format(time2fmt[self.when])
if file.IsExist(dstPath) {
os.Remove(dstPath)
}
if file.IsFile(self.filename) {
if err = os.Rename(self.filename, dstPath); err != nil {
return err
}
}
if self.backupCount > 0 {
for _, file := range self.getFilesToDelete() {
os.Remove(file)
}
}
self.reComputeRollover()
return self.open()
}