Function loadCLIPlugins

pkg/cmd/load_plugins.go:55–157

loadCLIPlugins loads CLI plugins into the command list. This follows a different pattern than the other commands because it has to inspect its environment and then add commands to the base command as it finds them.

(baseCmd *cobra.Command, out io.Writer)

// to inspect its environment and then add commands to the base command
// as it finds them.
func loadCLIPlugins(baseCmd *cobra.Command, out io.Writer) {
	// If HELM_NO_PLUGINS is set to 1, do not load plugins.
	if os.Getenv("HELM_NO_PLUGINS") == "1" {
		return
	}

	dirs := filepath.SplitList(settings.PluginsDirectory)
	descriptor := plugin.Descriptor{
		Type: "cli/v1",
	}
	found, err := plugin.FindPlugins(dirs, descriptor)
	if err != nil {
		slog.Error("failed to load plugins", slog.String("error", err.Error()))
		return
	}

	// Now we create commands for all of these.
	for _, plug := range found {
		var use, short, long string
		var ignoreFlags bool
		if cliConfig, ok := plug.Metadata().Config.(*schema.ConfigCLIV1); ok {
			use = cliConfig.Usage
			short = cliConfig.ShortHelp
			long = cliConfig.LongHelp
			ignoreFlags = cliConfig.IgnoreFlags
		}

		// Set defaults
		if use == "" {
			use = plug.Metadata().Name
		}
		if short == "" {
			short = fmt.Sprintf("the %q plugin", plug.Metadata().Name)
		}
		// long has no default, empty is ok

		c := &cobra.Command{
			Use:   use,
			Short: short,
			Long:  long,
			RunE: func(cmd *cobra.Command, args []string) error {
				u, err := processParent(cmd, args)
				if err != nil {
					return err
				}

				// For CLI plugin types runtime, set extra args and settings
				extraArgs := []string{}
				if !ignoreFlags {
					extraArgs = u
				}

				// Prepare environment
				env := os.Environ()
				for k, v := range settings.EnvVars() {
					env = append(env, fmt.Sprintf("%s=%s", k, v))
				}