Method mergePersistentFlags

command.go:1898–1902

mergePersistentFlags merges c.PersistentFlags() to c.Flags() and adds missing persistent flags of all parents.

()

// mergePersistentFlags merges c.PersistentFlags() to c.Flags()
// and adds missing persistent flags of all parents.
func (c *Command) mergePersistentFlags() {
	c.updateParentsPflags()
	c.Flags().AddFlagSet(c.PersistentFlags())
	c.Flags().AddFlagSet(c.parentsPflags)
}

// updateParentsPflags updates c.parentsPflags by adding
// new persistent flags of all parents.