Class: RuboCop::Formatter::DisabledConfigFormatter

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 24

attr_accessor :config_to_allow_offenses, :detected_styles

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 271

def no_exclude_limit?
  @options[:no_exclude_limit] == false
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 65

def show_offense_counts?
  @options.fetch(:offense_counts, true)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 61

def show_timestamp?
  @options.fetch(:auto_gen_timestamp, true)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 165

def cop_config_params(default_cfg, cfg)
  default_cfg.keys -
    %w[Description StyleGuide Reference Enabled Exclude Safe
       SafeAutoCorrect VersionAdded VersionChanged VersionRemoved] -
    cfg.keys
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 185

def default_config(cop_name)
  RuboCop::ConfigLoader.default_configuration[cop_name]
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 229

def excludes(offending_files, cop_name, parent)
  # Exclude properties in .rubocop_todo.yml override default ones, as well as any custom
  # excludes in .rubocop.yml, so in order to retain those excludes we must copy them.
  # There can be multiple .rubocop.yml files in subdirectories, but we just look at the
  # current working directory.
  config = ConfigStore.new.for(parent)
  cfg = config[cop_name] || {}

  if merge_mode_for_exclude?(config) || merge_mode_for_exclude?(cfg)
    offending_files
  else
    cop_exclude = cfg['Exclude']
    if cop_exclude && cop_exclude != default_config(cop_name)['Exclude']
      warn "`#{cop_name}: Exclude` in `#{smart_path(config.loaded_path)}` overrides a " \
           'generated `Exclude` in `.rubocop_todo.yml`. Either remove ' \
           "`#{cop_name}: Exclude` or add `inherit_mode: merge: - Exclude`."
    end
    ((cop_exclude || []) + offending_files).uniq
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 40

def file_finished(file, offenses)
  offenses.each do |o|
    @cops_with_offenses[o.cop_name] += 1
    @files_with_offenses[o.cop_name] ||= Set.new
    @files_with_offenses[o.cop_name] << file
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 33

def file_started(_file, options)
  @config_for_pwd = options[:config_store].for_pwd
  @exclude_limit_option = @options[:exclude_limit]
  @exclude_limit = Integer(@exclude_limit_option ||
    RuboCop::Options::DEFAULT_MAXIMUM_EXCLUSION_ITEMS)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 200

def filtered_config(cfg)
  # 'Enabled' option will be put into file only if exclude
  # limit is exceeded.
  rejected_keys = ['Enabled']
  rejected_keys << /\AEnforcedStyle\w*/ unless auto_gen_enforced_style?
  cfg.reject { |key| include_or_match?(rejected_keys, key) }
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 48

def finished(_inspected_files)
  output.puts format(HEADING, command: command, timestamp: timestamp)

  # Syntax isn't a real cop and it can't be disabled.
  @cops_with_offenses.delete('Lint/Syntax')

  output_offenses

  puts "Created #{output.path}."
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 277

def include_or_match?(arr, elm)
  arr.include?(elm) || arr.any? { |x| x.is_a?(Regexp) && x.match?(elm) }
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 250

def merge_mode_for_exclude?(cfg)
  Array(cfg.to_h.dig('inherit_mode', 'merge')).include?('Exclude')
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 102

def output_cop(cop_name, offense_count)
  output.puts
  cfg = self.class.config_to_allow_offenses[cop_name] || {}
  set_max(cfg, cop_name)

  # To avoid malformed YAML when potentially reading the config in
  # #excludes, we use an output buffer and append it to the actual output
  # only when it results in valid YAML.
  output_buffer = StringIO.new
  output_cop_comments(output_buffer, cfg, cop_name, offense_count)
  output_cop_config(output_buffer, cfg, cop_name)
  output.puts(output_buffer.string)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 137

def output_cop_comments(output_buffer, cfg, cop_name, offense_count)
  output_buffer.puts "# Offense count: #{offense_count}" if show_offense_counts?

  cop_class = Cop::Registry.global.find_by_cop_name(cop_name)
  default_cfg = default_config(cop_name)

  if supports_safe_autocorrect?(cop_class, default_cfg)
    output_buffer.puts '# This cop supports safe autocorrection (--autocorrect).'
  elsif supports_unsafe_autocorrect?(cop_class, default_cfg)
    output_buffer.puts '# This cop supports unsafe autocorrection (--autocorrect-all).'
  end

  return unless default_cfg

  params = cop_config_params(default_cfg, cfg)
  return if params.empty?

  output_cop_param_comments(output_buffer, params, default_cfg)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 189

def output_cop_config(output_buffer, cfg, cop_name)
  filtered_cfg = filtered_config(cfg)
  output_buffer.puts "#{cop_name}:"
  filtered_cfg.each do |key, value|
    value = value[0] if value.is_a?(Array)
    output_buffer.puts "  #{key}: #{value}"
  end

  output_offending_files(output_buffer, filtered_cfg, cop_name)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 172

def output_cop_param_comments(output_buffer, params, default_cfg)
  config_params = params.reject { |p| p.start_with?('Supported') }
  output_buffer.puts("# Configuration parameters: #{config_params.join(', ')}.")

  params.each do |param|
    value = default_cfg[param]
    next unless value.is_a?(Array)
    next if value.empty?

    output_buffer.puts "# #{param}: #{value.uniq.join(', ')}"
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 219

def output_exclude_list(output_buffer, offending_files, cop_name)
  require 'pathname'
  parent = Pathname.new(Dir.pwd)

  output_buffer.puts '  Exclude:'
  excludes(offending_files, cop_name, parent).each do |exclude_path|
    output_exclude_path(output_buffer, exclude_path, parent)
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 254

def output_exclude_path(output_buffer, exclude_path, parent)
  # exclude_path is either relative path, an absolute path, or a regexp.
  file_path = Pathname.new(exclude_path)
  relative = file_path.relative_path_from(parent)
  output_buffer.puts "    - '#{relative}'"
rescue ArgumentError
  file = exclude_path
  output_buffer.puts "    - '#{file}'"
rescue TypeError
  regexp = exclude_path
  output_buffer.puts "    - !ruby/regexp /#{regexp.source}/"
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 208

def output_offending_files(output_buffer, cfg, cop_name)
  return unless cfg.empty?

  offending_files = @files_with_offenses[cop_name].sort
  if !no_exclude_limit? && offending_files.count > @exclude_limit
    output_buffer.puts '  Enabled: false'
  else
    output_exclude_list(output_buffer, offending_files, cop_name)
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 96

def output_offenses
  @cops_with_offenses.sort.each do |cop_name, offense_count|
    output_cop(cop_name, offense_count)
  end
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 267

def safe_autocorrect?(config)
  config.fetch('Safe', true) && config.fetch('SafeAutoCorrect', true)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 116

def set_max(cfg, cop_name)
  return unless cfg[:exclude_limit]

  cfg.merge!(cfg[:exclude_limit]) if should_set_max?(cop_name)

  # Remove already used exclude_limit.
  cfg.reject! { |key| key == :exclude_limit }
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 125

def should_set_max?(cop_name)
  max_set_in_user_config =
    @config_for_pwd.for_cop(cop_name)['Max'] != default_config(cop_name)['Max']

  max_allowed = !max_set_in_user_config && !no_exclude_limit?
  return false unless max_allowed

  # In case auto_gen_only_exclude is set, only modify the maximum if the files are not
  # excluded one by one.
  !@options[:auto_gen_only_exclude] || @files_with_offenses[cop_name].size > @exclude_limit
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 157

def supports_safe_autocorrect?(cop_class, default_cfg)
  cop_class&.support_autocorrect? && (default_cfg.nil? || safe_autocorrect?(default_cfg))
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 161

def supports_unsafe_autocorrect?(cop_class, default_cfg)
  cop_class&.support_autocorrect? && !safe_autocorrect?(default_cfg)
end

# File 'lib/rubocop/formatter/disabled_config_formatter.rb', line 92

def timestamp
  show_timestamp? ? "on #{Time.now.utc} " : ''
end