func Download(client *tuf.Client, path string) (io.ReadCloser, error) {
tmp, err := NewTempFile()
if err != nil {
return nil, err
}
if err := client.Download(path, tmp); err != nil {
return nil, err
}
if _, err := tmp.Seek(0, os.SEEK_SET); err != nil {
return nil, err
}
return tmp, nil
}
func cmdGet(args *docopt.Args, client *tuf.Client) error {
if _, err := client.Update(); err != nil && !tuf.IsLatestSnapshot(err) {
return err
}
target := util.NormalizeTarget(args.String["<target>"])
file, err := ioutil.TempFile("", "go-tuf")
if err != nil {
return err
}
tmp := tmpFile{file}
if err := client.Download(target, &tmp); err != nil {
return err
}
defer tmp.Delete()
if _, err := tmp.Seek(0, os.SEEK_SET); err != nil {
return err
}
_, err = io.Copy(os.Stdout, file)
return err
}