Add ability to tag a command with a feature flag

dispatcher.go

@@ -58,6 +58,12 @@ type Example struct {
 	Body string // The example command line or code
 }
 
+// RequiredFeatureProvider is an interface for commands that require a feature flag to be enabled.
+type RequiredFeatureProvider interface {
+	// RequiredFeature returns the name of the feature flag required for this command.
+	RequiredFeature() string
+}
+
 // OutputFormatter is an interface for commands that can specify their output format
 type OutputFormatter interface {
 	// OutputFormat returns the output format for this command

help_doc.go

@@ -18,6 +18,7 @@ type HelpDocument struct {
 type CommandDoc struct {
 	Path            string          `json:"path"`
 	Usage           string          `json:"usage"`
+	RequiredFeature string          `json:"requiredFeature,omitempty"`
 	Flags           []FlagDoc       `json:"flags"`
 	FlagGroups      []string        `json:"flagGroups"`
 	PositionalArgs  []PositionalDoc `json:"positionalArgs,omitempty"`
@@ -158,6 +159,9 @@ func (d *Dispatcher) buildCommandDocs(parentPath string) []CommandDoc {
 						})
 					}
 				}
+				if rfp, ok := entry.Command.(RequiredFeatureProvider); ok {
+					cmd.RequiredFeature = rfp.RequiredFeature()
+				}
 			}
 		}