grafana/pkg/services/backgroundtasks/remove_tmp_images.go
2016-09-26 14:33:40 +02:00

39 lines
798 B
Go

package backgroundtasks
import (
"io/ioutil"
"os"
"path"
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/models"
"github.com/grafana/grafana/pkg/setting"
)
func init() {
bus.AddEventListener(CleanTmpFiles)
}
func CleanTmpFiles(cmd *models.HourCommand) error {
files, err := ioutil.ReadDir(setting.ImagesDir)
var toDelete []os.FileInfo
for _, file := range files {
if file.ModTime().AddDate(0, 0, setting.RenderedImageTTLDays).Before(cmd.Time) {
toDelete = append(toDelete, file)
}
}
for _, file := range toDelete {
fullPath := path.Join(setting.ImagesDir, file.Name())
err := os.Remove(fullPath)
if err != nil {
return err
}
}
tlog.Debug("Found old rendered image to delete", "deleted", len(toDelete), "keept", len(files))
return err
}