support multi-image (docker) archives

Support loading and saving tarballs with more than one image.
Add a new `/libpod/images/export` endpoint to the rest API to
allow for exporting/saving multiple images into an archive.

Note that a non-release version of containers/image is vendored.
A release version must be vendored before cutting a new Podman
release.  We force the containers/image version via a replace in
the go.mod file; this way go won't try to match the versions.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 20 insertions, 8 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go
index bb503360d..6f57875c6 100644
--- a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer.go
@@ -3,17 +3,19 @@ package cwriter
 import (
 	"bytes"
 	"errors"
-	"fmt"
 	"io"
 	"os"
-
-	"github.com/mattn/go-isatty"
+	"strconv"
 )
 
 // NotATTY not a TeleTYpewriter error.
 var NotATTY = errors.New("not a terminal")
 
-var cuuAndEd = fmt.Sprintf("%c[%%dA%[1]c[J", 27)
+// http://ascii-table.com/ansi-escape-sequences.php
+const (
+	escOpen  = "\x1b["
+	cuuAndEd = "A\x1b[J"
+)
 
 // Writer is a buffered the writer that updates the terminal. The
 // contents of writer will be flushed when Flush is called.
@@ -21,7 +23,7 @@ type Writer struct {
 	out        io.Writer
 	buf        bytes.Buffer
 	lineCount  int
-	fd         uintptr
+	fd         int
 	isTerminal bool
 }
 
@@ -29,8 +31,8 @@ type Writer struct {
 func New(out io.Writer) *Writer {
 	w := &Writer{out: out}
 	if f, ok := out.(*os.File); ok {
-		w.fd = f.Fd()
-		w.isTerminal = isatty.IsTerminal(w.fd)
+		w.fd = int(f.Fd())
+		w.isTerminal = IsTerminal(w.fd)
 	}
 	return w
 }
@@ -39,7 +41,10 @@ func New(out io.Writer) *Writer {
 func (w *Writer) Flush(lineCount int) (err error) {
 	// some terminals interpret clear 0 lines as clear 1
 	if w.lineCount > 0 {
-		w.clearLines()
+		err = w.clearLines()
+		if err != nil {
+			return
+		}
 	}
 	w.lineCount = lineCount
 	_, err = w.buf.WriteTo(w.out)
@@ -70,3 +75,10 @@ func (w *Writer) GetWidth() (int, error) {
 	tw, _, err := GetSize(w.fd)
 	return tw, err
 }
+
+func (w *Writer) ansiCuuAndEd() (err error) {
+	buf := make([]byte, 8)
+	buf = strconv.AppendInt(buf[:copy(buf, escOpen)], int64(w.lineCount), 10)
+	_, err = w.out.Write(append(buf, cuuAndEd...))
+	return
+}