kubernetes/staging/src/k8s.io/component-base/cli/flag/sectioned.go

const usageFmt …

type NamedFlagSets …

// FlagSet returns the flag set with the given name and adds it to the
// ordered name list if it is not in there yet.
func (nfs *NamedFlagSets) FlagSet(name string) *pflag.FlagSet { … }

// PrintSections prints the given names flag sets in sections, with the maximal given column number.
// If cols is zero, lines are not wrapped.
func PrintSections(w io.Writer, fss NamedFlagSets, cols int) { … }

// SetUsageAndHelpFunc set both usage and help function.
// Print the flag sets we need instead of all of them.
func SetUsageAndHelpFunc(cmd *cobra.Command, fss NamedFlagSets, cols int) { … }