package persistence import ( "fmt" "errors" "os" "strings" "offline_twitter/scraper" ) var NotInDatabase = errors.New("Not in database") type ErrNotInDatabase struct { Table string Value interface{} } func (err ErrNotInDatabase) Error() string { return fmt.Sprintf("Not in database: %s %q", err.Table, err.Value) } // DUPE 1 func file_exists(path string) bool { _, err := os.Stat(path) if err == nil { return true } else if errors.Is(err, os.ErrNotExist) { return false } else { panic(err) } } func parse_users_file(data []byte) []scraper.UserHandle { users := strings.Split(string(data), "\n") ret := []scraper.UserHandle{} for _, u := range users { if u != "" { ret = append(ret, scraper.UserHandle(u)) } } return ret }