Global options

Global options are available to use with many Fern CLI commands. Read more below.

help

Use the --help option with any Fern CLI command to see an explanation and available options.

$fern add --help
>fern add <generator>
>
>Add a code generator to generators.yml
>
>Positionals:
>  generator                                                [string] [required]
>
>Options:
>  --help     Show help                                               [boolean]
>  --log-level    [choices: "debug", "info", "warn", "error"] [default: "info"]
>  --api      Only run the command on the provided API                 [string]
>  --group    Add the generator to the specified group                 [string]

log-level

Use the --log-level option to see more information about Fern’s actions.

  • debug: Debug messages, informational messages, warnings, and errors are logged.
  • info [default]: Informational messages, warnings, and errors are logged.
  • warn: Warnings and errors are logged.
  • error: Only error messages are logged.
$fern generate --log-level debug