1 files changed, 71 insertions, 0 deletions
diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go
new file mode 100644
index 000000000..9ec1ec66b
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go
@@ -0,0 +1,71 @@
+package cwriter
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+// NotATTY not a TeleTYpewriter error.
+var NotATTY = errors.New("not a terminal")
+
+var cuuAndEd = fmt.Sprintf("%c[%%dA%[1]c[J", 27)
+
+// Writer is a buffered the writer that updates the terminal. The
+// contents of writer will be flushed when Flush is called.
+type Writer struct {
+	out        io.Writer
+	buf        bytes.Buffer
+	lineCount  int
+	fd         uintptr
+	isTerminal bool
+}
+
+// New returns a new Writer with defaults.
+func New(out io.Writer) *Writer {
+	w := &Writer{out: out}
+	if f, ok := out.(*os.File); ok {
+		w.fd = f.Fd()
+		w.isTerminal = terminal.IsTerminal(int(w.fd))
+	}
+	return w
+}
+
+// Flush flushes the underlying buffer.
+func (w *Writer) Flush(lineCount int) (err error) {
+	if w.lineCount > 0 {
+		w.clearLines()
+	}
+	w.lineCount = lineCount
+	_, err = w.buf.WriteTo(w.out)
+	return
+}
+
+// Write appends the contents of p to the underlying buffer.
+func (w *Writer) Write(p []byte) (n int, err error) {
+	return w.buf.Write(p)
+}
+
+// WriteString writes string to the underlying buffer.
+func (w *Writer) WriteString(s string) (n int, err error) {
+	return w.buf.WriteString(s)
+}
+
+// ReadFrom reads from the provided io.Reader and writes to the
+// underlying buffer.
+func (w *Writer) ReadFrom(r io.Reader) (n int64, err error) {
+	return w.buf.ReadFrom(r)
+}
+
+// GetWidth returns width of underlying terminal.
+func (w *Writer) GetWidth() (int, error) {
+	if w.isTerminal {
+		tw, _, err := terminal.GetSize(int(w.fd))
+		return tw, err
+	}
+	return -1, NotATTY
+}