コード例 #1
0
ファイル: get.go プロジェクト: rht/ipget
func progressBarForReader(out io.Writer, r io.Reader) (*pb.ProgressBar, *pb.Reader) {
	// setup bar reader
	// TODO: get total length of files
	bar := pb.New(0).SetUnits(pb.U_BYTES)
	bar.Output = out
	barR := bar.NewProxyReader(r)
	return bar, barR
}
コード例 #2
0
ファイル: main.go プロジェクト: rht/ipget
func get(path, outFile string) error {
	start := time.Now()
	ctx, cancel := context.WithCancel(context.Background())
	node, err := core.NewNode(ctx, &core.BuildCfg{
		Online: true,
	})
	if err != nil {
		return fmt.Errorf("ipfs NewNode() failed: %s", err)
	}

	err = node.Bootstrap(core.DefaultBootstrapConfig)
	if err != nil {
		return fmt.Errorf("node Bootstrap() failed: %s", err)
	}

	fmt.Fprintf(os.Stderr, "IPFS Node bootstrapping (took %v)\n", time.Since(start))

	// Cancel the ipfs node context if the process gets interrupted or killed.
	go func() {
		interrupts := make(chan os.Signal, 1)
		signal.Notify(interrupts, os.Interrupt, os.Kill)
		<-interrupts
		cancel()
	}()

	reader, length, err := cat(node.Context(), node, path)
	if err != nil {
		return fmt.Errorf("cat failed: %s", err)
	}

	file, err := os.Create(outFile)
	if err != nil {
		return fmt.Errorf("Creating output file %q failed: %s", outFile, err)
	}

	bar := pb.New(int(length)).SetUnits(pb.U_BYTES)
	bar.Output = os.Stderr
	bar.ShowSpeed = false
	bar.Start()
	writer := io.MultiWriter(file, bar)

	if _, err := io.Copy(writer, reader); err != nil {
		return fmt.Errorf("copy failed: %s", err)
	}

	bar.Finish()

	fmt.Fprintf(os.Stderr, "Wrote %q to %q (%s) (took %v)\n", path, outFile,
		humanize.Bytes(length), time.Since(start))
	return nil
}
コード例 #3
0
ファイル: pb.go プロジェクト: rht/ipget
func main() {
	count := 5000
	bar := pb.New(count)

	// show percents (by default already true)
	bar.ShowPercent = true

	// show bar (by default already true)
	bar.ShowPercent = true

	// no need counters
	bar.ShowCounters = true

	bar.ShowTimeLeft = true

	// and start
	bar.Start()
	for i := 0; i < count; i++ {
		bar.Increment()
		time.Sleep(time.Millisecond)
	}
	bar.FinishPrint("The End!")
}
コード例 #4
0
ファイル: cat.go プロジェクト: rht/ipget
		if err != nil {
			res.SetError(err, cmds.ErrNormal)
			return
		}

		res.SetLength(length)

		reader := io.MultiReader(readers...)
		res.SetOutput(reader)
	},
	PostRun: func(req cmds.Request, res cmds.Response) {
		if res.Length() < progressBarMinSize {
			return
		}

		bar := pb.New(int(res.Length())).SetUnits(pb.U_BYTES)
		bar.Output = res.Stderr()
		bar.Start()

		reader := bar.NewProxyReader(res.Output().(io.Reader))
		res.SetOutput(&clearlineReader{reader, res.Stderr()})
	},
}

func cat(ctx context.Context, node *core.IpfsNode, paths []string) ([]io.Reader, uint64, error) {
	readers := make([]io.Reader, 0, len(paths))
	length := uint64(0)
	for _, fpath := range paths {
		read, err := coreunix.Cat(node, fpath)
		if err != nil {
			return nil, 0, err
コード例 #5
0
ファイル: copy.go プロジェクト: rht/ipget
func main() {
	// check args
	if len(os.Args) < 3 {
		printUsage()
		return
	}
	sourceName, destName := os.Args[1], os.Args[2]

	// check source
	var source io.Reader
	var sourceSize int64
	if strings.HasPrefix(sourceName, "http://") {
		// open as url
		resp, err := http.Get(sourceName)
		if err != nil {
			fmt.Printf("Can't get %s: %v\n", sourceName, err)
			return
		}
		defer resp.Body.Close()
		if resp.StatusCode != http.StatusOK {
			fmt.Printf("Server return non-200 status: %v\n", resp.Status)
			return
		}
		i, _ := strconv.Atoi(resp.Header.Get("Content-Length"))
		sourceSize = int64(i)
		source = resp.Body
	} else {
		// open as file
		s, err := os.Open(sourceName)
		if err != nil {
			fmt.Printf("Can't open %s: %v\n", sourceName, err)
			return
		}
		defer s.Close()
		// get source size
		sourceStat, err := s.Stat()
		if err != nil {
			fmt.Printf("Can't stat %s: %v\n", sourceName, err)
			return
		}
		sourceSize = sourceStat.Size()
		source = s
	}

	// create dest
	dest, err := os.Create(destName)
	if err != nil {
		fmt.Printf("Can't create %s: %v\n", destName, err)
		return
	}
	defer dest.Close()

	// create bar
	bar := pb.New(int(sourceSize)).SetUnits(pb.U_BYTES).SetRefreshRate(time.Millisecond * 10)
	bar.ShowSpeed = true
	bar.Start()

	// create multi writer
	writer := io.MultiWriter(dest, bar)

	// and copy
	io.Copy(writer, source)
	bar.Finish()
}