Function setPositionalFlags

command/v7/v7_suite_test.go:110–151

(cmd interface{}, values ...interface{})

}

func setPositionalFlags(cmd interface{}, values ...interface{}) {
	ptr := reflect.ValueOf(cmd)
	if ptr.Kind() != reflect.Ptr {
		Fail("need to pass a pointer to the command struct")
	}

	val := ptr.Elem()
	if val.Kind() != reflect.Struct {
		Fail("need to pass a command struct")
	}

	typ := val.Type()
	for i := 0; i < typ.NumField(); i++ {
		field := typ.Field(i)

		if tagValue, ok := field.Tag.Lookup("positional-args"); ok && tagValue == "yes" && field.Type.Kind() == reflect.Struct {
			if len(values) != field.Type.NumField() {
				Fail(fmt.Sprintf("%d values provided but positional args struct %s has %d fields", len(values), field.Name, field.Type.NumField()))
			}

			for j := 0; j < field.Type.NumField(); j++ {
				posField := field.Type.Field(j)
				value := reflect.ValueOf(values[j])
				if value.Type().ConvertibleTo(posField.Type) {
					val.Field(i).Field(j).Set(value.Convert(posField.Type))
				} else {
					Fail(fmt.Sprintf(
						"Could not set field '%s' type '%s' to '%v' type '%s'",
						posField.Name,
						posField.Type,
						value.Interface(),
						value.Type(),
					))
				}
			}

			return
		}
	}

	Fail(`Did not find a field with 'positional-args:"yes"' in the struct`)
}