Method Run

pget.go:41–88

Run execute methods in pget package

(ctx context.Context, version string, args []string)

// Run execute methods in pget package
func (pget *Pget) Run(ctx context.Context, version string, args []string) error {
	if err := pget.Ready(version, args); err != nil {
		return errTop(err)
	}

	// TODO(codehex): calc maxIdleConnsPerHost
	client := newDownloadClient(16)

	target, err := Check(ctx, &CheckConfig{
		URLs:    pget.URLs,
		Timeout: time.Duration(pget.timeout) * time.Second,
		Client:  client,
	})
	if err != nil {
		return err
	}

	filename := target.Filename

	var dir string
	if pget.Output != "" {
		fi, err := os.Stat(pget.Output)
		if err == nil && fi.IsDir() {
			dir = pget.Output
		} else {
			dir, filename = filepath.Split(pget.Output)
			if dir != "" {
				if err := os.MkdirAll(dir, 0755); err != nil {
					return errors.Wrapf(err, "failed to create diretory at %s", dir)
				}
			}
		}
	}

	opts := []DownloadOption{
		WithUserAgent(pget.useragent, version),
		WithReferer(pget.referer),
	}

	return Download(ctx, &DownloadConfig{
		Filename:      filename,
		Dirname:       dir,
		ContentLength: target.ContentLength,
		Procs:         pget.Procs,
		URLs:          target.URLs,
		Client:        client,
	}, opts...)
}

const (
	warningNumConnection = 4