kubernetes/vendor/github.com/spf13/cobra/flag_groups.go

const requiredAsGroupAnnotation …

const oneRequiredAnnotation …

const mutuallyExclusiveAnnotation …

// MarkFlagsRequiredTogether marks the given flags with annotations so that Cobra errors
// if the command is invoked with a subset (but not all) of the given flags.
func (c *Command) MarkFlagsRequiredTogether(flagNames ...string) { … }

// MarkFlagsOneRequired marks the given flags with annotations so that Cobra errors
// if the command is invoked without at least one flag from the given set of flags.
func (c *Command) MarkFlagsOneRequired(flagNames ...string) { … }

// MarkFlagsMutuallyExclusive marks the given flags with annotations so that Cobra errors
// if the command is invoked with more than one flag from the given set of flags.
func (c *Command) MarkFlagsMutuallyExclusive(flagNames ...string) { … }

// ValidateFlagGroups validates the mutuallyExclusive/oneRequired/requiredAsGroup logic and returns the
// first error encountered.
func (c *Command) ValidateFlagGroups() error { … }

func hasAllFlags(fs *flag.FlagSet, flagnames ...string) bool { … }

func processFlagForGroupAnnotation(flags *flag.FlagSet, pflag *flag.Flag, annotation string, groupStatus map[string]map[string]bool) { … }

func validateRequiredFlagGroups(data map[string]map[string]bool) error { … }

func validateOneRequiredFlagGroups(data map[string]map[string]bool) error { … }

func validateExclusiveFlagGroups(data map[string]map[string]bool) error { … }

func sortedKeys(m map[string]map[string]bool) []string { … }

// enforceFlagGroupsForCompletion will do the following:
// - when a flag in a group is present, other flags in the group will be marked required
// - when none of the flags in a one-required group are present, all flags in the group will be marked required
// - when a flag in a mutually exclusive group is present, other flags in the group will be marked as hidden
// This allows the standard completion logic to behave appropriately for flag groups
func (c *Command) enforceFlagGroupsForCompletion() { … }