vendor c/image v5.4.2

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

1 files changed, 138 insertions, 0 deletions

diff --git a/vendor/github.com/vbauerster/mpb/v5/bar_filler.go b/vendor/github.com/vbauerster/mpb/v5/bar_filler.go
new file mode 100644
index 000000000..00bf0a494
--- /dev/null
+++ b/vendor/github.com/vbauerster/mpb/v5/bar_filler.go
@@ -0,0 +1,138 @@
+package mpb
+
+import (
+	"io"
+	"unicode/utf8"
+
+	"github.com/vbauerster/mpb/v5/decor"
+	"github.com/vbauerster/mpb/v5/internal"
+)
+
+const (
+	rLeft = iota
+	rFill
+	rTip
+	rEmpty
+	rRight
+	rRevTip
+	rRefill
+)
+
+// DefaultBarStyle is a string containing 7 runes.
+// Each rune is a building block of a progress bar.
+//
+//	'1st rune' stands for left boundary rune
+//
+//	'2nd rune' stands for fill rune
+//
+//	'3rd rune' stands for tip rune
+//
+//	'4th rune' stands for empty rune
+//
+//	'5th rune' stands for right boundary rune
+//
+//	'6th rune' stands for reverse tip rune
+//
+//	'7th rune' stands for refill rune
+//
+const DefaultBarStyle string = "[=>-]<+"
+
+type barFiller struct {
+	format  [][]byte
+	tip     []byte
+	refill  int64
+	reverse bool
+	flush   func(w io.Writer, bb [][]byte)
+}
+
+// NewBarFiller constucts mpb.BarFiller, to be used with *Progress.Add(...) *Bar method.
+func NewBarFiller(style string, reverse bool) BarFiller {
+	if style == "" {
+		style = DefaultBarStyle
+	}
+	bf := &barFiller{
+		format:  make([][]byte, utf8.RuneCountInString(style)),
+		reverse: reverse,
+	}
+	bf.SetStyle(style)
+	return bf
+}
+
+func (s *barFiller) SetStyle(style string) {
+	if !utf8.ValidString(style) {
+		return
+	}
+	src := make([][]byte, 0, utf8.RuneCountInString(style))
+	for _, r := range style {
+		src = append(src, []byte(string(r)))
+	}
+	copy(s.format, src)
+	s.SetReverse(s.reverse)
+}
+
+func (s *barFiller) SetReverse(reverse bool) {
+	if reverse {
+		s.tip = s.format[rRevTip]
+		s.flush = reverseFlush
+	} else {
+		s.tip = s.format[rTip]
+		s.flush = normalFlush
+	}
+	s.reverse = reverse
+}
+
+func (s *barFiller) SetRefill(amount int64) {
+	s.refill = amount
+}
+
+func (s *barFiller) Fill(w io.Writer, width int, stat *decor.Statistics) {
+	// don't count rLeft and rRight as progress
+	width -= 2
+	if width < 2 {
+		return
+	}
+	w.Write(s.format[rLeft])
+	defer w.Write(s.format[rRight])
+
+	bb := make([][]byte, width)
+
+	cwidth := int(internal.PercentageRound(stat.Total, stat.Current, width))
+
+	for i := 0; i < cwidth; i++ {
+		bb[i] = s.format[rFill]
+	}
+
+	if s.refill > 0 {
+		var rwidth int
+		if s.refill > stat.Current {
+			rwidth = cwidth
+		} else {
+			rwidth = int(internal.PercentageRound(stat.Total, int64(s.refill), width))
+		}
+		for i := 0; i < rwidth; i++ {
+			bb[i] = s.format[rRefill]
+		}
+	}
+
+	if cwidth > 0 && cwidth < width {
+		bb[cwidth-1] = s.tip
+	}
+
+	for i := cwidth; i < width; i++ {
+		bb[i] = s.format[rEmpty]
+	}
+
+	s.flush(w, bb)
+}
+
+func normalFlush(w io.Writer, bb [][]byte) {
+	for i := 0; i < len(bb); i++ {
+		w.Write(bb[i])
+	}
+}
+
+func reverseFlush(w io.Writer, bb [][]byte) {
+	for i := len(bb) - 1; i >= 0; i-- {
+		w.Write(bb[i])
+	}
+}