vendor containers/image v1.4

This requires some additional changes to the dependencies since the
progress-bar library has been changed to github.com/vbauerster/mpb.

Please refer to the following link for the release notes:
https://github.com/containers/image/releases/tag/v1.4

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

vendor/github.com/vbauerster/mpb/bar_option.go

@@ -0,0 +1,124 @@
+package mpb
+
+import (
+	"io"
+
+	"github.com/vbauerster/mpb/decor"
+)
+
+// BarOption is a function option which changes the default behavior of a bar,
+// if passed to p.AddBar(int64, ...BarOption)
+type BarOption func(*bState)
+
+// AppendDecorators let you inject decorators to the bar's right side
+func AppendDecorators(appenders ...decor.Decorator) BarOption {
+	return func(s *bState) {
+		for _, decorator := range appenders {
+			if ar, ok := decorator.(decor.AmountReceiver); ok {
+				s.amountReceivers = append(s.amountReceivers, ar)
+			}
+			if sl, ok := decorator.(decor.ShutdownListener); ok {
+				s.shutdownListeners = append(s.shutdownListeners, sl)
+			}
+			s.aDecorators = append(s.aDecorators, decorator)
+		}
+	}
+}
+
+// PrependDecorators let you inject decorators to the bar's left side
+func PrependDecorators(prependers ...decor.Decorator) BarOption {
+	return func(s *bState) {
+		for _, decorator := range prependers {
+			if ar, ok := decorator.(decor.AmountReceiver); ok {
+				s.amountReceivers = append(s.amountReceivers, ar)
+			}
+			if sl, ok := decorator.(decor.ShutdownListener); ok {
+				s.shutdownListeners = append(s.shutdownListeners, sl)
+			}
+			s.pDecorators = append(s.pDecorators, decorator)
+		}
+	}
+}
+
+// BarTrimLeft trims left side space of the bar
+func BarTrimLeft() BarOption {
+	return func(s *bState) {
+		s.trimLeftSpace = true
+	}
+}
+
+// BarTrimRight trims right space of the bar
+func BarTrimRight() BarOption {
+	return func(s *bState) {
+		s.trimRightSpace = true
+	}
+}
+
+// BarTrim trims both left and right spaces of the bar
+func BarTrim() BarOption {
+	return func(s *bState) {
+		s.trimLeftSpace = true
+		s.trimRightSpace = true
+	}
+}
+
+// BarID overwrites internal bar id
+func BarID(id int) BarOption {
+	return func(s *bState) {
+		s.id = id
+	}
+}
+
+// BarRemoveOnComplete is a flag, if set whole bar line will be removed on complete event.
+// If both BarRemoveOnComplete and BarClearOnComplete are set, first bar section gets cleared
+// and then whole bar line gets removed completely.
+func BarRemoveOnComplete() BarOption {
+	return func(s *bState) {
+		s.removeOnComplete = true
+	}
+}
+
+// BarReplaceOnComplete is indicator for delayed bar start, after the `runningBar` is complete.
+// To achieve bar replacement effect, `runningBar` should has its `BarRemoveOnComplete` option set.
+func BarReplaceOnComplete(runningBar *Bar) BarOption {
+	return func(s *bState) {
+		s.runningBar = runningBar
+	}
+}
+
+// BarClearOnComplete is a flag, if set will clear bar section on complete event.
+// If you need to remove a whole bar line, refer to BarRemoveOnComplete.
+func BarClearOnComplete() BarOption {
+	return func(s *bState) {
+		s.barClearOnComplete = true
+	}
+}
+
+// BarPriority sets bar's priority.
+// Zero is highest priority, i.e. bar will be on top.
+// If `BarReplaceOnComplete` option is supplied, this option is ignored.
+func BarPriority(priority int) BarOption {
+	return func(s *bState) {
+		s.priority = priority
+	}
+}
+
+// BarNewLineExtend takes user defined efn, which gets called each render cycle.
+// Any write to provided writer of efn, will appear on new line of respective bar.
+func BarNewLineExtend(efn func(io.Writer, *decor.Statistics)) BarOption {
+	return func(s *bState) {
+		s.newLineExtendFn = efn
+	}
+}
+
+func barWidth(w int) BarOption {
+	return func(s *bState) {
+		s.width = w
+	}
+}
+
+func barFormat(format string) BarOption {
+	return func(s *bState) {
+		s.runes = strToBarRunes(format)
+	}
+}