string

A string type argument has a value made up of an ordered sequences of characters, like “Hello” or “I’m a string”.

Example:

arguments:
  - name: --search_query
    type: string
    default: "meaning of life"
    description: The term to search for
    alternatives: ["-q"]

alternatives

Type: String / List of String

List of alternative format variations for this argument.

choices

Type: List of String

Limit the amount of valid values for this argument to those set in this list. When set and a value not present in the list is provided, an error will be produced.

Example:

- name: --language
  type: string
  choices: ["python", "r", "javascript"]

default

Type: String / List of String

The default value when no argument value is provided. This will not work if the required property is enabled.

Example:

- name: --my_string
  type: string
  default: "The answer is 42"

description

Type: String

A description of the argument. This will be displayed with --help.

example

Type: String / List of String

An example value for this argument. If no default property was specified, this will be used for that purpose.

Example:

- name: --my_string
  type: string
  example: "Hello World"

info

Type: Json

Structured information. Can be any shape: a string, vector, map or even nested map.

Example:

info:
  category: cat1
  labels: [one, two, three]

multiple

Type: Boolean

Treat the argument value as an array. Arrays can be passed using the delimiter --foo=1:2:3 or by providing the same argument multiple times --foo 1 --foo 2. You can use a custom delimiter by using the multiple_sep property. false by default.

Example:

- name: --my_string
  type: string
  multiple: true

Here’s an example of how to use this:

my_component --my_string=Marc:Susan:Paul

multiple_sep

Type: String

The delimiter character for providing multiple values. : by default.

Example:

- name: --my_string
  type: string
  multiple: true
  multiple_sep: ","

Here’s an example of how to use this:

my_component --my_string=Marc,Susan,Paul

name

Type: String

The name of the argument. Can be in the formats --foo, -f or foo. The number of dashes determines how values can be passed:

  • --foo is a long option, which can be passed with executable_name --foo=value or executable_name --foo value
  • -f is a short option, which can be passed with executable_name -f value
  • foo is an argument, which can be passed with executable_name value

required

Type: Boolean

Make the value for this argument required. If set to true, an error will be produced if no value was provided. false by default.

Example:

- name: --my_string
  type: string
  required: true

type

Type: String

Specifies the type of the argument.