introduce podman machine

podman machine allows podman to create, manage, and interact with a vm
running some form of linux (default is fcos).  podman is then configured
to be able to interact with the vm automatically.

while this is usable on linux, the real push is to get this working on
both current apple architectures in macos.

Ashley Cui contributed to this PR and was a great help.

[NO TESTS NEEDED]

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 191 insertions, 0 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go b/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go
new file mode 100644
index 000000000..50494485e
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_filler_bar.go
@@ -0,0 +1,191 @@
+package mpb
+
+import (
+	"bytes"
+	"io"
+	"unicode/utf8"
+
+	"github.com/mattn/go-runewidth"
+	"github.com/rivo/uniseg"
+	"github.com/vbauerster/mpb/v6/decor"
+	"github.com/vbauerster/mpb/v6/internal"
+)
+
+const (
+	rLeft = iota
+	rFill
+	rTip
+	rSpace
+	rRight
+	rRevTip
+	rRefill
+)
+
+// BarDefaultStyle is a style for rendering a progress bar.
+// It consist of 7 ordered runes:
+//
+//	'1st rune' stands for left boundary rune
+//
+//	'2nd rune' stands for fill rune
+//
+//	'3rd rune' stands for tip rune
+//
+//	'4th rune' stands for space rune
+//
+//	'5th rune' stands for right boundary rune
+//
+//	'6th rune' stands for reverse tip rune
+//
+//	'7th rune' stands for refill rune
+//
+const BarDefaultStyle string = "[=>-]<+"
+
+type barFiller struct {
+	format  [][]byte
+	rwidth  []int
+	tip     []byte
+	refill  int64
+	reverse bool
+	flush   func(io.Writer, *space, [][]byte)
+}
+
+type space struct {
+	space  []byte
+	rwidth int
+	count  int
+}
+
+// NewBarFiller returns a BarFiller implementation which renders a
+// progress bar in regular direction. If style is empty string,
+// BarDefaultStyle is applied. To be used with `*Progress.Add(...)
+// *Bar` method.
+func NewBarFiller(style string) BarFiller {
+	return newBarFiller(style, false)
+}
+
+// NewBarFillerRev returns a BarFiller implementation which renders a
+// progress bar in reverse direction. If style is empty string,
+// BarDefaultStyle is applied. To be used with `*Progress.Add(...)
+// *Bar` method.
+func NewBarFillerRev(style string) BarFiller {
+	return newBarFiller(style, true)
+}
+
+// NewBarFillerPick pick between regular and reverse BarFiller implementation
+// based on rev param. To be used with `*Progress.Add(...) *Bar` method.
+func NewBarFillerPick(style string, rev bool) BarFiller {
+	return newBarFiller(style, rev)
+}
+
+func newBarFiller(style string, rev bool) BarFiller {
+	bf := &barFiller{
+		format:  make([][]byte, len(BarDefaultStyle)),
+		rwidth:  make([]int, len(BarDefaultStyle)),
+		reverse: rev,
+	}
+	bf.parse(BarDefaultStyle)
+	if style != "" && style != BarDefaultStyle {
+		bf.parse(style)
+	}
+	return bf
+}
+
+func (s *barFiller) parse(style string) {
+	if !utf8.ValidString(style) {
+		panic("invalid bar style")
+	}
+	srcFormat := make([][]byte, 0, len(BarDefaultStyle))
+	srcRwidth := make([]int, 0, len(BarDefaultStyle))
+	gr := uniseg.NewGraphemes(style)
+	for gr.Next() {
+		srcFormat = append(srcFormat, gr.Bytes())
+		srcRwidth = append(srcRwidth, runewidth.StringWidth(gr.Str()))
+	}
+	copy(s.format, srcFormat)
+	copy(s.rwidth, srcRwidth)
+	if s.reverse {
+		s.tip = s.format[rRevTip]
+		s.flush = reverseFlush
+	} else {
+		s.tip = s.format[rTip]
+		s.flush = regularFlush
+	}
+}
+
+func (s *barFiller) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+	width := internal.CheckRequestedWidth(reqWidth, stat.AvailableWidth)
+	brackets := s.rwidth[rLeft] + s.rwidth[rRight]
+	if width < brackets {
+		return
+	}
+	// don't count brackets as progress
+	width -= brackets
+
+	w.Write(s.format[rLeft])
+	defer w.Write(s.format[rRight])
+
+	cwidth := int(internal.PercentageRound(stat.Total, stat.Current, width))
+	space := &space{
+		space:  s.format[rSpace],
+		rwidth: s.rwidth[rSpace],
+		count:  width - cwidth,
+	}
+
+	index, refill := 0, 0
+	bb := make([][]byte, cwidth)
+
+	if cwidth > 0 && cwidth != width {
+		bb[index] = s.tip
+		cwidth -= s.rwidth[rTip]
+		index++
+	}
+
+	if stat.Refill > 0 {
+		refill = int(internal.PercentageRound(stat.Total, int64(stat.Refill), width))
+		if refill > cwidth {
+			refill = cwidth
+		}
+		cwidth -= refill
+	}
+
+	for cwidth > 0 {
+		bb[index] = s.format[rFill]
+		cwidth -= s.rwidth[rFill]
+		index++
+	}
+
+	for refill > 0 {
+		bb[index] = s.format[rRefill]
+		refill -= s.rwidth[rRefill]
+		index++
+	}
+
+	if cwidth+refill < 0 || space.rwidth > 1 {
+		buf := new(bytes.Buffer)
+		s.flush(buf, space, bb[:index])
+		io.WriteString(w, runewidth.Truncate(buf.String(), width, "…"))
+		return
+	}
+
+	s.flush(w, space, bb)
+}
+
+func regularFlush(w io.Writer, space *space, bb [][]byte) {
+	for i := len(bb) - 1; i >= 0; i-- {
+		w.Write(bb[i])
+	}
+	for space.count > 0 {
+		w.Write(space.space)
+		space.count -= space.rwidth
+	}
+}
+
+func reverseFlush(w io.Writer, space *space, bb [][]byte) {
+	for space.count > 0 {
+		w.Write(space.space)
+		space.count -= space.rwidth
+	}
+	for i := 0; i < len(bb); i++ {
+		w.Write(bb[i])
+	}
+}