Class: RuboCop::ConfigLoaderResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/rubocop/config_loader_resolver.rb

Overview

A help class for ConfigLoader that handles configuration resolution.

Instance Method Summary collapse

Instance Method Details

#merge(base_hash, derived_hash, **opts) ⇒ Object

Return a recursive merge of two hashes. That is, a normal hash merge, with the addition that any value that is a hash, and occurs in both arguments, will also be merged. And so on.

rubocop:disable Metrics/AbcSize



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# File 'lib/rubocop/config_loader_resolver.rb', line 88

def merge(base_hash, derived_hash, **opts)
  result = base_hash.merge(derived_hash)
  keys_appearing_in_both = base_hash.keys & derived_hash.keys
  keys_appearing_in_both.each do |key|
    if opts[:unset_nil] && derived_hash[key].nil?
      result.delete(key)
    elsif base_hash[key].is_a?(Hash)
      result[key] = merge(base_hash[key], derived_hash[key], **opts)
    elsif should_union?(base_hash, key, opts[:inherit_mode])
      result[key] = base_hash[key] | derived_hash[key]
    elsif opts[:debug]
      warn_on_duplicate_setting(base_hash, derived_hash, key, **opts)
    end
  end
  result
end

#merge_with_default(config, config_file, unset_nil:) ⇒ Object

Merges the given configuration with the default one. If AllCops:DisabledByDefault is true, it changes the Enabled params so that only cops from user configuration are enabled. If AllCops::EnabledByDefault is true, it changes the Enabled params so that only cops explicitly disabled in user configuration are disabled.



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# File 'lib/rubocop/config_loader_resolver.rb', line 62

def merge_with_default(config, config_file, unset_nil:)
  default_configuration = ConfigLoader.default_configuration

  disabled_by_default = config.for_all_cops['DisabledByDefault']
  enabled_by_default = config.for_all_cops['EnabledByDefault']

  if disabled_by_default || enabled_by_default
    default_configuration = transform(default_configuration) do |params|
      params.merge('Enabled' => !disabled_by_default)
    end
  end

  if disabled_by_default
    config = handle_disabled_by_default(config, default_configuration)
  end

  opts = { inherit_mode: config['inherit_mode'] || {},
           unset_nil: unset_nil }
  Config.new(merge(default_configuration, config, **opts), config_file)
end

#override_department_setting_for_cops(base_hash, derived_hash) ⇒ Object

An ‘Enabled: true` setting in user configuration for a cop overrides an `Enabled: false` setting for its department.



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# File 'lib/rubocop/config_loader_resolver.rb', line 108

def override_department_setting_for_cops(base_hash, derived_hash)
  derived_hash.each_key do |key|
    next unless key =~ %r{(.*)/.*}

    department = Regexp.last_match(1)
    next unless disabled?(derived_hash, department) ||
                disabled?(base_hash, department)

    # The `override_department` setting for the `Enabled` parameter is an
    # internal setting that's not documented in the manual. It will cause a
    # cop to be enabled later, when logic surrounding enabled/disabled it
    # run, even though its department is disabled.
    if derived_hash[key]['Enabled']
      derived_hash[key]['Enabled'] = 'override_department'
    end
  end
end

#resolve_inheritance(path, hash, file, debug) ⇒ Object

rubocop:disable Metrics/MethodLength



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# File 'lib/rubocop/config_loader_resolver.rb', line 21

def resolve_inheritance(path, hash, file, debug)
  inherited_files = Array(hash['inherit_from'])
  base_configs(path, inherited_files, file)
    .reverse.each_with_index do |base_config, index|
    override_department_setting_for_cops(base_config, hash)
    base_config.each do |k, v|
      next unless v.is_a?(Hash)

      if hash.key?(k)
        v = merge(v, hash[k],
                  cop_name: k, file: file, debug: debug,
                  inherited_file: inherited_files[index],
                  inherit_mode: determine_inherit_mode(hash, k))
      end
      hash[k] = v
    end
  end
end

#resolve_inheritance_from_gems(hash) ⇒ Object

rubocop:enable Metrics/MethodLength



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# File 'lib/rubocop/config_loader_resolver.rb', line 41

def resolve_inheritance_from_gems(hash)
  gems = hash.delete('inherit_gem')
  (gems || {}).each_pair do |gem_name, config_path|
    if gem_name == 'rubocop'
      raise ArgumentError,
            "can't inherit configuration from the rubocop gem"
    end

    hash['inherit_from'] = Array(hash['inherit_from'])
    Array(config_path).reverse_each do |path|
      # Put gem configuration first so local configuration overrides it.
      hash['inherit_from'].unshift gem_config_path(gem_name, path)
    end
  end
end

#resolve_requires(path, hash) ⇒ Object 



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# File 'lib/rubocop/config_loader_resolver.rb', line 9

def resolve_requires(path, hash)
  config_dir = File.dirname(path)
  Array(hash.delete('require')).each do |r|
    if r.start_with?('.')
      require(File.join(config_dir, r))
    else
      require(r)
    end
  end
end