Revert vendor directory to support old golang (GOPATH mode)

gomodule is still in progress to migrate for now, hence multus
team decide to keep vendor directory to support build without
gomodule.

vendor/github.com/onsi/ginkgo/internal/containernode/container_node.go

@@ -0,0 +1,151 @@
+package containernode
+
+import (
+	"math/rand"
+	"sort"
+
+	"github.com/onsi/ginkgo/internal/leafnodes"
+	"github.com/onsi/ginkgo/types"
+)
+
+type subjectOrContainerNode struct {
+	containerNode *ContainerNode
+	subjectNode   leafnodes.SubjectNode
+}
+
+func (n subjectOrContainerNode) text() string {
+	if n.containerNode != nil {
+		return n.containerNode.Text()
+	} else {
+		return n.subjectNode.Text()
+	}
+}
+
+type CollatedNodes struct {
+	Containers []*ContainerNode
+	Subject    leafnodes.SubjectNode
+}
+
+type ContainerNode struct {
+	text         string
+	flag         types.FlagType
+	codeLocation types.CodeLocation
+
+	setupNodes               []leafnodes.BasicNode
+	subjectAndContainerNodes []subjectOrContainerNode
+}
+
+func New(text string, flag types.FlagType, codeLocation types.CodeLocation) *ContainerNode {
+	return &ContainerNode{
+		text:         text,
+		flag:         flag,
+		codeLocation: codeLocation,
+	}
+}
+
+func (container *ContainerNode) Shuffle(r *rand.Rand) {
+	sort.Sort(container)
+	permutation := r.Perm(len(container.subjectAndContainerNodes))
+	shuffledNodes := make([]subjectOrContainerNode, len(container.subjectAndContainerNodes))
+	for i, j := range permutation {
+		shuffledNodes[i] = container.subjectAndContainerNodes[j]
+	}
+	container.subjectAndContainerNodes = shuffledNodes
+}
+
+func (node *ContainerNode) BackPropagateProgrammaticFocus() bool {
+	if node.flag == types.FlagTypePending {
+		return false
+	}
+
+	shouldUnfocus := false
+	for _, subjectOrContainerNode := range node.subjectAndContainerNodes {
+		if subjectOrContainerNode.containerNode != nil {
+			shouldUnfocus = subjectOrContainerNode.containerNode.BackPropagateProgrammaticFocus() || shouldUnfocus
+		} else {
+			shouldUnfocus = (subjectOrContainerNode.subjectNode.Flag() == types.FlagTypeFocused) || shouldUnfocus
+		}
+	}
+
+	if shouldUnfocus {
+		if node.flag == types.FlagTypeFocused {
+			node.flag = types.FlagTypeNone
+		}
+		return true
+	}
+
+	return node.flag == types.FlagTypeFocused
+}
+
+func (node *ContainerNode) Collate() []CollatedNodes {
+	return node.collate([]*ContainerNode{})
+}
+
+func (node *ContainerNode) collate(enclosingContainers []*ContainerNode) []CollatedNodes {
+	collated := make([]CollatedNodes, 0)
+
+	containers := make([]*ContainerNode, len(enclosingContainers))
+	copy(containers, enclosingContainers)
+	containers = append(containers, node)
+
+	for _, subjectOrContainer := range node.subjectAndContainerNodes {
+		if subjectOrContainer.containerNode != nil {
+			collated = append(collated, subjectOrContainer.containerNode.collate(containers)...)
+		} else {
+			collated = append(collated, CollatedNodes{
+				Containers: containers,
+				Subject:    subjectOrContainer.subjectNode,
+			})
+		}
+	}
+
+	return collated
+}
+
+func (node *ContainerNode) PushContainerNode(container *ContainerNode) {
+	node.subjectAndContainerNodes = append(node.subjectAndContainerNodes, subjectOrContainerNode{containerNode: container})
+}
+
+func (node *ContainerNode) PushSubjectNode(subject leafnodes.SubjectNode) {
+	node.subjectAndContainerNodes = append(node.subjectAndContainerNodes, subjectOrContainerNode{subjectNode: subject})
+}
+
+func (node *ContainerNode) PushSetupNode(setupNode leafnodes.BasicNode) {
+	node.setupNodes = append(node.setupNodes, setupNode)
+}
+
+func (node *ContainerNode) SetupNodesOfType(nodeType types.SpecComponentType) []leafnodes.BasicNode {
+	nodes := []leafnodes.BasicNode{}
+	for _, setupNode := range node.setupNodes {
+		if setupNode.Type() == nodeType {
+			nodes = append(nodes, setupNode)
+		}
+	}
+	return nodes
+}
+
+func (node *ContainerNode) Text() string {
+	return node.text
+}
+
+func (node *ContainerNode) CodeLocation() types.CodeLocation {
+	return node.codeLocation
+}
+
+func (node *ContainerNode) Flag() types.FlagType {
+	return node.flag
+}
+
+//sort.Interface
+
+func (node *ContainerNode) Len() int {
+	return len(node.subjectAndContainerNodes)
+}
+
+func (node *ContainerNode) Less(i, j int) bool {
+	return node.subjectAndContainerNodes[i].text() < node.subjectAndContainerNodes[j].text()
+}
+
+func (node *ContainerNode) Swap(i, j int) {
+	node.subjectAndContainerNodes[i], node.subjectAndContainerNodes[j] = node.subjectAndContainerNodes[j], node.subjectAndContainerNodes[i]
+}