Class: RuboCop::ConfigLoaderResolver Private

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

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

A help class for ConfigLoader that handles configuration resolution.

Instance Method Summary collapse

Instance Method Details

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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

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 90

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 merge_hashes?(base_hash, derived_hash, key)
      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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

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 65

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

  config = handle_disabled_by_default(config, default_configuration) if disabled_by_default
  override_enabled_for_disabled_departments(default_configuration, config)

  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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

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 110

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.
    derived_hash[key]['Enabled'] = 'override_department' if derived_hash[key]['Enabled']
  end
end

#override_enabled_for_disabled_departments(base_hash, derived_hash) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

If a cop was previously explicitly enabled, but then superseded by the department being disabled, disable it.


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# File 'lib/rubocop/config_loader_resolver.rb', line 128

def override_enabled_for_disabled_departments(base_hash, derived_hash)
  cops_to_disable = derived_hash.each_key.with_object([]) do |key, cops|
    next unless disabled?(derived_hash, key)

    cops.concat(base_hash.keys.grep(Regexp.new("^#{key}/")))
  end

  cops_to_disable.each do |cop_name|
    next unless base_hash.dig(cop_name, 'Enabled') == true

    derived_hash.replace(merge({ cop_name => { 'Enabled' => false } }, derived_hash))
  end
end

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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

rubocop:disable Metrics/MethodLength, Metrics/AbcSize


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# File 'lib/rubocop/config_loader_resolver.rb', line 23

def resolve_inheritance(path, hash, file, debug) # rubocop:disable Metrics/MethodLength, Metrics/AbcSize
  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)
    override_enabled_for_disabled_departments(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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/config_loader_resolver.rb', line 44

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

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.


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# File 'lib/rubocop/config_loader_resolver.rb', line 10

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