func getItem(cast feedparser.Feed, item feedparser.Item) error {
title, err := util.Escape(cast.Title)
if err != nil {
return err
}
target := filepath.Join(downloadDir, title)
if err := os.MkdirAll(filepath.Dir(target), 0755); err != nil {
return err
}
fp, err := util.GetFile(item.Attachment, target)
if err != nil {
return err
}
name, err := util.Escape(item.Title)
if err == nil {
newfp := filepath.Join(target, name+filepath.Ext(fp))
if err = os.Rename(fp, newfp); err != nil {
return err
}
}
return nil
}
func readMarker(name string) (marker time.Time, err error) {
name, err = util.Escape(name)
if err != nil {
return
}
file, err := os.Open(filepath.Join(downloadDir, name, ".latest"))
if err != nil {
return
}
defer file.Close()
var timestamp int64
if _, err = fmt.Fscanf(file, "%d\n", ×tamp); err != nil {
return
}
marker = time.Unix(timestamp, 0)
return
}
func writeMarker(name string, latest time.Time) error {
name, err := util.Escape(name)
if err != nil {
return err
}
path := filepath.Join(downloadDir, name, ".latest")
if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
return err
}
file, err := os.Create(path)
if err != nil {
return err
}
defer file.Close()
if _, err := fmt.Fprintf(file, "%d\n", latest.Unix()); err != nil {
return err
}
return nil
}