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, 65 insertions, 0 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go b/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go
new file mode 100644
index 000000000..0817b19ec
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v6/bar_filler_spinner.go
@@ -0,0 +1,65 @@
+package mpb
+
+import (
+	"io"
+	"strings"
+
+	"github.com/mattn/go-runewidth"
+	"github.com/vbauerster/mpb/v6/decor"
+	"github.com/vbauerster/mpb/v6/internal"
+)
+
+// SpinnerAlignment enum.
+type SpinnerAlignment int
+
+// SpinnerAlignment kinds.
+const (
+	SpinnerOnLeft SpinnerAlignment = iota
+	SpinnerOnMiddle
+	SpinnerOnRight
+)
+
+// SpinnerDefaultStyle is a style for rendering a spinner.
+var SpinnerDefaultStyle = []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"}
+
+type spinnerFiller struct {
+	frames    []string
+	count     uint
+	alignment SpinnerAlignment
+}
+
+// NewSpinnerFiller returns a BarFiller implementation which renders
+// a spinner. If style is nil or zero length, SpinnerDefaultStyle is
+// applied. To be used with `*Progress.Add(...) *Bar` method.
+func NewSpinnerFiller(style []string, alignment SpinnerAlignment) BarFiller {
+	if len(style) == 0 {
+		style = SpinnerDefaultStyle
+	}
+	filler := &spinnerFiller{
+		frames:    style,
+		alignment: alignment,
+	}
+	return filler
+}
+
+func (s *spinnerFiller) Fill(w io.Writer, reqWidth int, stat decor.Statistics) {
+	width := internal.CheckRequestedWidth(reqWidth, stat.AvailableWidth)
+
+	frame := s.frames[s.count%uint(len(s.frames))]
+	frameWidth := runewidth.StringWidth(frame)
+
+	if width < frameWidth {
+		return
+	}
+
+	switch rest := width - frameWidth; s.alignment {
+	case SpinnerOnLeft:
+		io.WriteString(w, frame+strings.Repeat(" ", rest))
+	case SpinnerOnMiddle:
+		str := strings.Repeat(" ", rest/2) + frame + strings.Repeat(" ", rest/2+rest%2)
+		io.WriteString(w, str)
+	case SpinnerOnRight:
+		io.WriteString(w, strings.Repeat(" ", rest)+frame)
+	}
+	s.count++
+}