Class: RuboCop::ConfigLoader

Inherits:
Object
  • Object
show all
Extended by:
FileFinder
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

Methods included from FileFinder

find_file_upwards, find_files_upwards, root_level=, root_level?

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 25

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 25

def debug
  @debug
end

.default_configuration ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 102

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 25

def ignore_parent_exclusion
  @ignore_parent_exclusion
end

Class Method Details

.add_excludes_from_files(config, config_file) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 93

def add_excludes_from_files(config, config_file)
  found_files = find_files_upwards(DOTFILE, config_file, use_home: true)
  return if found_files.empty?
  return if PathUtil.relative_path(found_files.last) ==
            PathUtil.relative_path(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 126

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 



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# File 'lib/rubocop/config_loader.rb', line 56

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 32

def clear_options
  @debug = @auto_gen_config = nil
  FileFinder.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 77

def configuration_file_for(target_dir)
  find_file_upwards(DOTFILE, target_dir, use_home: true) || DEFAULT_FILE
end

.configuration_from_file(config_file) ⇒ Object 



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# File 'lib/rubocop/config_loader.rb', line 81

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 37

def load_file(file)
  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, debug?)

  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 68

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 115

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 119

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