Class: RuboCop::ConfigLoader

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

Overview

This class represents the configuration of the RuboCop application and all its cops. A Config is associated with a YAML configuration file from which it was read. Several different Configs can be used during a run of the rubocop program, if files in several directories are inspected.

Constant Summary collapse

DOTFILE = 
'.rubocop.yml'.freeze
RUBOCOP_HOME = 
File.realpath(File.join(File.dirname(__FILE__), '..', '..'))
DEFAULT_FILE = 
File.join(RUBOCOP_HOME, 'config', 'default.yml')
AUTO_GENERATED_FILE = 
'.rubocop_todo.yml'.freeze

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.auto_gen_config ⇒ Object Also known as: auto_gen_config?

Returns the value of attribute auto_gen_config.



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# File 'lib/rubocop/config_loader.rb', line 19

def auto_gen_config
  @auto_gen_config
end

.debug ⇒ Object Also known as: debug?

Returns the value of attribute debug.



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# File 'lib/rubocop/config_loader.rb', line 19

def debug
  @debug
end

.default_configuration ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 97

def default_configuration
  @default_configuration ||= begin
                               print 'Default ' if debug?
                               load_file(DEFAULT_FILE)
                             end
end

.ignore_parent_exclusion ⇒ Object Also known as: ignore_parent_exclusion?

Returns the value of attribute ignore_parent_exclusion.



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# File 'lib/rubocop/config_loader.rb', line 19

def ignore_parent_exclusion
  @ignore_parent_exclusion
end

.root_level=(value) ⇒ Object (writeonly)

The upwards search is stopped at this level.



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# File 'lib/rubocop/config_loader.rb', line 20

def root_level=(value)
  @root_level = value
end

Class Method Details

.add_excludes_from_files(config, config_file) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 90

def add_excludes_from_files(config, config_file)
  found_files = config_files_in_path(config_file)
  return unless found_files.any? && found_files.last != config_file
  print 'AllCops/Exclude ' if debug?
  config.add_excludes_from_higher_level(load_file(found_files.last))
end

.add_inheritance_from_auto_generated_file ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 121

def add_inheritance_from_auto_generated_file
  file_string = " #{AUTO_GENERATED_FILE}"

  if File.exist?(DOTFILE)
    files = Array(load_yaml_configuration(DOTFILE)['inherit_from'])
    return if files.include?(AUTO_GENERATED_FILE)
    files.unshift(AUTO_GENERATED_FILE)
    file_string = "\n  - " + files.join("\n  - ") if files.size > 1
    rubocop_yml_contents = IO.read(DOTFILE, encoding: Encoding::UTF_8)
                             .sub(/^inherit_from: *[.\w]+/, '')
                             .sub(/^inherit_from: *(\n *- *[.\w]+)+/, '')
  end
  write_dotfile(file_string, rubocop_yml_contents)
  puts "Added inheritance from `#{AUTO_GENERATED_FILE}` in `#{DOTFILE}`."
end

.add_missing_namespaces(path, hash) ⇒ Object

rubocop:disable Performance/HashEachMethods



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# File 'lib/rubocop/config_loader.rb', line 52

def add_missing_namespaces(path, hash)
  hash.keys.each do |key|
    q = Cop::Cop.qualified_cop_name(key, path)
    next if q == key

    hash[q] = hash.delete(key)
  end
end

.clear_options ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 27

def clear_options
  @debug = @auto_gen_config = @root_level = nil
end

.configuration_file_for(target_dir) ⇒ Object

Returns the path of .rubocop.yml searching upwards in the directory structure starting at the given directory where the inspected file is. If no .rubocop.yml is found there, the user’s home directory is checked. If there’s no .rubocop.yml there either, the path to the default file is returned.



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# File 'lib/rubocop/config_loader.rb', line 74

def configuration_file_for(target_dir)
  config_files_in_path(target_dir).first || DEFAULT_FILE
end

.configuration_from_file(config_file) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 78

def configuration_from_file(config_file)
  config = load_file(config_file)
  return config if config_file == DEFAULT_FILE

  if ignore_parent_exclusion?
    print 'Ignoring AllCops/Exclude from parent folders' if debug?
  else
    add_excludes_from_files(config, config_file)
  end
  merge_with_default(config, config_file)
end

.load_file(file) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 31

def load_file(file)
  return if file.nil?
  path = File.absolute_path(file.is_a?(RemoteConfig) ? file.file : file)

  hash = load_yaml_configuration(path)

  # Resolve requires first in case they define additional cops
  resolver.resolve_requires(path, hash)

  add_missing_namespaces(path, hash)
  target_ruby_version_to_f!(hash)

  resolver.resolve_inheritance_from_gems(hash, hash.delete('inherit_gem'))
  resolver.resolve_inheritance(path, hash, file)

  hash.delete('inherit_from')

  Config.create(hash, path)
end

.merge(base_hash, derived_hash) ⇒ 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.



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# File 'lib/rubocop/config_loader.rb', line 65

def merge(base_hash, derived_hash)
  resolver.merge(base_hash, derived_hash)
end

.merge_with_default(config, config_file) ⇒ 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.rb', line 110

def merge_with_default(config, config_file)
  resolver.merge_with_default(config, config_file)
end

.target_ruby_version_to_f!(hash) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 114

def target_ruby_version_to_f!(hash)
  version = 'TargetRubyVersion'
  return unless hash['AllCops'] && hash['AllCops'][version]

  hash['AllCops'][version] = hash['AllCops'][version].to_f
end