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>

6 files changed, 96 insertions, 55 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/util_bsd.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_bsd.go
new file mode 100644
index 000000000..4e3564ece
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_bsd.go
@@ -0,0 +1,7 @@
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TIOCGETA
diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/util_linux.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_linux.go
new file mode 100644
index 000000000..253f12dd2
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_linux.go
@@ -0,0 +1,7 @@
+// +build aix linux
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETS
diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/util_solaris.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_solaris.go
new file mode 100644
index 000000000..4b29ff5c0
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/util_solaris.go
@@ -0,0 +1,7 @@
+// +build solaris
+
+package cwriter
+
+import "golang.org/x/sys/unix"
+
+const ioctlReadTermios = unix.TCGETA
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
+}
diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_posix.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_posix.go
index e836cec3a..f54a5d06b 100644
--- a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_posix.go
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_posix.go
@@ -3,20 +3,24 @@
 package cwriter
 
 import (
-	"fmt"
-
 	"golang.org/x/sys/unix"
 )
 
-func (w *Writer) clearLines() {
-	fmt.Fprintf(w.out, cuuAndEd, w.lineCount)
+func (w *Writer) clearLines() error {
+	return w.ansiCuuAndEd()
 }
 
 // GetSize returns the dimensions of the given terminal.
-func GetSize(fd uintptr) (width, height int, err error) {
-	ws, err := unix.IoctlGetWinsize(int(fd), unix.TIOCGWINSZ)
+func GetSize(fd int) (width, height int, err error) {
+	ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
 	if err != nil {
 		return -1, -1, err
 	}
 	return int(ws.Col), int(ws.Row), nil
 }
+
+// IsTerminal returns whether the given file descriptor is a terminal.
+func IsTerminal(fd int) bool {
+	_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
+	return err == nil
+}
diff --git a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_windows.go b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_windows.go
index 7a3ed5bcc..1a69c81ac 100644
--- a/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_windows.go
+++ b/vendor/github.com/vbauerster/mpb/v5/cwriter/writer_windows.go
@@ -3,67 +3,71 @@
 package cwriter
 
 import (
-	"fmt"
-	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/windows"
 )
 
-var kernel32 = syscall.NewLazyDLL("kernel32.dll")
+var kernel32 = windows.NewLazySystemDLL("kernel32.dll")
 
 var (
-	procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
 	procSetConsoleCursorPosition   = kernel32.NewProc("SetConsoleCursorPosition")
 	procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
 )
 
-type coord struct {
-	x int16
-	y int16
-}
-
-type smallRect struct {
-	left   int16
-	top    int16
-	right  int16
-	bottom int16
-}
-
-type consoleScreenBufferInfo struct {
-	size              coord
-	cursorPosition    coord
-	attributes        uint16
-	window            smallRect
-	maximumWindowSize coord
-}
-
-func (w *Writer) clearLines() {
+func (w *Writer) clearLines() error {
 	if !w.isTerminal {
-		fmt.Fprintf(w.out, cuuAndEd, w.lineCount)
+		// hope it's cygwin or similar
+		return w.ansiCuuAndEd()
 	}
 
-	info := new(consoleScreenBufferInfo)
-	procGetConsoleScreenBufferInfo.Call(w.fd, uintptr(unsafe.Pointer(info)))
+	var info windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(w.fd), &info); err != nil {
+		return err
+	}
 
-	info.cursorPosition.y -= int16(w.lineCount)
-	if info.cursorPosition.y < 0 {
-		info.cursorPosition.y = 0
+	info.CursorPosition.Y -= int16(w.lineCount)
+	if info.CursorPosition.Y < 0 {
+		info.CursorPosition.Y = 0
 	}
-	procSetConsoleCursorPosition.Call(w.fd, uintptr(uint32(uint16(info.cursorPosition.y))<<16|uint32(uint16(info.cursorPosition.x))))
+	_, _, _ = procSetConsoleCursorPosition.Call(
+		uintptr(w.fd),
+		uintptr(uint32(uint16(info.CursorPosition.Y))<<16|uint32(uint16(info.CursorPosition.X))),
+	)
 
 	// clear the lines
-	cursor := &coord{
-		x: info.window.left,
-		y: info.cursorPosition.y,
+	cursor := &windows.Coord{
+		X: info.Window.Left,
+		Y: info.CursorPosition.Y,
 	}
-	count := uint32(info.size.x) * uint32(w.lineCount)
-	procFillConsoleOutputCharacter.Call(w.fd, uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(cursor)), uintptr(unsafe.Pointer(new(uint32))))
+	count := uint32(info.Size.X) * uint32(w.lineCount)
+	_, _, _ = procFillConsoleOutputCharacter.Call(
+		uintptr(w.fd),
+		uintptr(' '),
+		uintptr(count),
+		*(*uintptr)(unsafe.Pointer(cursor)),
+		uintptr(unsafe.Pointer(new(uint32))),
+	)
+	return nil
 }
 
 // GetSize returns the visible dimensions of the given terminal.
 //
 // These dimensions don't include any scrollback buffer height.
-func GetSize(fd uintptr) (width, height int, err error) {
-	info := new(consoleScreenBufferInfo)
-	procGetConsoleScreenBufferInfo.Call(fd, uintptr(unsafe.Pointer(info)))
-	return int(info.window.right - info.window.left), int(info.window.bottom - info.window.top), nil
+func GetSize(fd int) (width, height int, err error) {
+	var info windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
+		return 0, 0, err
+	}
+	// terminal.GetSize from crypto/ssh adds "+ 1" to both width and height:
+	// https://go.googlesource.com/crypto/+/refs/heads/release-branch.go1.14/ssh/terminal/util_windows.go#75
+	// but looks like this is a root cause of issue #66, so removing both "+ 1" have fixed it.
+	return int(info.Window.Right - info.Window.Left), int(info.Window.Bottom - info.Window.Top), nil
+}
+
+// IsTerminal returns whether the given file descriptor is a terminal.
+func IsTerminal(fd int) bool {
+	var st uint32
+	err := windows.GetConsoleMode(windows.Handle(fd), &st)
+	return err == nil
 }