| 209 | } |
| 210 | |
| 211 | func (cmd *Command) suggestFlagFromError(err error, commandName string) (string, error) { |
| 212 | fl, parseErr := flagFromError(err) |
| 213 | if parseErr != nil { |
| 214 | return "", err |
| 215 | } |
| 216 | |
| 217 | flags := cmd.Flags |
| 218 | hideHelp := cmd.hideHelp() |
| 219 | |
| 220 | if commandName != "" { |
| 221 | subCmd := cmd.Command(commandName) |
| 222 | if subCmd == nil { |
| 223 | return "", err |
| 224 | } |
| 225 | flags = subCmd.Flags |
| 226 | hideHelp = hideHelp || subCmd.HideHelp |
| 227 | } |
| 228 | |
| 229 | suggestion := SuggestFlag(flags, fl, hideHelp) |
| 230 | if len(suggestion) == 0 { |
| 231 | return "", err |
| 232 | } |
| 233 | |
| 234 | return fmt.Sprintf(SuggestDidYouMeanTemplate, suggestion) + "\n\n", nil |
| 235 | } |
| 236 | |
| 237 | // Names returns the names including short names and aliases. |
| 238 | func (cmd *Command) Names() []string { |