TUN-528: Move cloudflared into a separate repo

vendor/gopkg.in/urfave/cli.v2/category.go

@@ -0,0 +1,85 @@
+package cli
+
+type CommandCategories interface {
+	// AddCommand adds a command to a category, creating a new category if necessary.
+	AddCommand(category string, command *Command)
+	// Categories returns a copy of the category slice
+	Categories() []CommandCategory
+}
+
+type commandCategories []*commandCategory
+
+func newCommandCategories() CommandCategories {
+	ret := commandCategories([]*commandCategory{})
+	return &ret
+}
+
+func (c *commandCategories) Less(i, j int) bool {
+	return (*c)[i].Name() < (*c)[j].Name()
+}
+
+func (c *commandCategories) Len() int {
+	return len(*c)
+}
+
+func (c *commandCategories) Swap(i, j int) {
+	(*c)[i], (*c)[j] = (*c)[j], (*c)[i]
+}
+
+func (c *commandCategories) AddCommand(category string, command *Command) {
+	for _, commandCategory := range []*commandCategory(*c) {
+		if commandCategory.name == category {
+			commandCategory.commands = append(commandCategory.commands, command)
+			return
+		}
+	}
+	newVal := commandCategories(append(*c,
+		&commandCategory{name: category, commands: []*Command{command}}))
+	(*c) = newVal
+}
+
+func (c *commandCategories) Categories() []CommandCategory {
+	ret := make([]CommandCategory, len(*c))
+	for i, cat := range *c {
+		ret[i] = cat
+	}
+	return ret
+}
+
+// CommandCategory is a category containing commands.
+type CommandCategory interface {
+	// Name returns the category name string
+	Name() string
+	// VisibleCommands returns a slice of the Commands with Hidden=false
+	VisibleCommands() []*Command
+}
+
+type commandCategory struct {
+	name     string
+	commands []*Command
+}
+
+func newCommandCategory(name string) *commandCategory {
+	return &commandCategory{
+		name:     name,
+		commands: []*Command{},
+	}
+}
+
+func (c *commandCategory) Name() string {
+	return c.name
+}
+
+func (c *commandCategory) VisibleCommands() []*Command {
+	if c.commands == nil {
+		c.commands = []*Command{}
+	}
+
+	ret := []*Command{}
+	for _, command := range c.commands {
+		if !command.Hidden {
+			ret = append(ret, command)
+		}
+	}
+	return ret
+}