var myCmd = &cobra.Command{ Use: "mycmd", Short: "My custom command", Long: `A longer description of my custom command.`, Run: func(cmd *cobra.Command, args []string) { // Your command logic here }, // Customize the help message for this command HelpFunc: customHelp, } func customHelp(cmd *cobra.Command, args []string) { fmt.Println("My custom help text") }
cobra.OnInitialize(func() { // Set the default help template for all commands cobra.HelpFunc = customHelp }) func customHelp(cmd *cobra.Command, args []string) { // Your custom help template here }In this example, we use the `OnInitialize()` function to set the default help template for all commands in our application to a custom function called "customHelp". This function will be called whenever the user runs any command with the "--help" flag. Overall, the `github.com/spf13/cobra` package library provides a flexible and easy-to-use framework for building robust command-line interfaces in Go. The HelpFunc feature is just one of many powerful tools that it offers.