Class: Textus::Action::RuleLint

Inherits:
Base
  • Object
show all
Defined in:
lib/textus/action/rule_lint.rb

Class Method Summary collapse

Methods inherited from Base

inherited, proposal_from

Methods included from Contract::DSL

#arg, #cli, #cli_stdin, #contract, #contract?, #summary, #surfaces, #verb, #view

Class Method Details

.call(container:, call:, candidate_yaml:) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/textus/action/rule_lint.rb', line 16

def self.call(container:, call:, candidate_yaml:) # rubocop:disable Lint/UnusedMethodArgument
  root = container.root
  live_rules = current_rules(root)
  candidate_result = parse_candidate(candidate_yaml)
  return candidate_result if candidate_result.is_a?(Dry::Monads::Result::Failure)

  candidate_rules = candidate_result

  live_by_match = live_rules.to_h { |rule| [rule["match"], rule] }
  candidate_by_match = candidate_rules.to_h { |rule| [rule["match"], rule] }

  steps = (candidate_by_match.keys - live_by_match.keys).map do |match|
    { "op" => "add_rule", "match" => match, "rule" => candidate_by_match[match] }
  end
  (live_by_match.keys - candidate_by_match.keys).each do |match|
    steps << { "op" => "remove_rule", "match" => match }
  end
  (live_by_match.keys & candidate_by_match.keys).each do |match|
    next if live_by_match[match] == candidate_by_match[match]

    steps << {
      "op" => "change_rule",
      "match" => match,
      "from" => live_by_match[match],
      "to" => candidate_by_match[match],
    }
  end

  Success(Textus::Store::Jobs::Plan.new(steps: steps, warnings: []))
end

.current_rules(root) ⇒ Object 



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# File 'lib/textus/action/rule_lint.rb', line 47

def self.current_rules(root)
  raw = YAML.safe_load_file(File.join(root, "manifest.yaml"), permitted_classes: [Symbol], aliases: false)
  Array(raw["rules"])
end

.parse_candidate(yaml_text) ⇒ Object 



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# File 'lib/textus/action/rule_lint.rb', line 52

def self.parse_candidate(yaml_text)
  raw = YAML.safe_load(yaml_text, permitted_classes: [Symbol], aliases: false)
  return Failure(code: :usage_error, message: "candidate is not a YAML mapping") unless raw.is_a?(Hash)

  Array(raw["rules"])
rescue Psych::Exception => e
  Failure(code: :usage_error, message: "candidate YAML parse error: #{e.message}")
end