File: parsing.rb

package info (click to toggle)
ruby-clamp 1.4.0-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 364 kB
  • sloc: ruby: 2,851; makefile: 4
file content (38 lines) | stat: -rw-r--r-- 855 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
# frozen_string_literal: true

module Clamp
  module Parameter

    # Parameter parsing methods.
    #
    module Parsing

      protected

      def parse_parameters
        set_parameters_from_command_line
        default_parameters_from_environment
      end

      private

      def set_parameters_from_command_line
        self.class.parameters.each do |parameter|
          parameter.consume(remaining_arguments).each do |value|
            parameter.of(self).take(value)
          end
        rescue ArgumentError => e
          signal_usage_error Clamp.message(:parameter_argument_error, param: parameter.name, message: e.message)
        end
      end

      def default_parameters_from_environment
        self.class.parameters.each do |parameter|
          parameter.of(self).default_from_environment
        end
      end

    end

  end
end