Class: RuboCop::Config

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
FileFinder, PathUtil
Defined in:
lib/rubocop/config.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.

Defined Under Namespace

Classes: CopConfig

Constant Summary collapse

DEFAULT_RAILS_VERSION = 
5.0

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from FileFinder

#find_file_upwards, #find_last_file_upwards, root_level=, root_level?

Methods included from PathUtil

absolute?, hidden_dir?, hidden_file?, hidden_file_in_not_hidden_dir?, match_path?, maybe_hidden_file?, relative_path, smart_path

Constructor Details

#initialize(hash = {}, loaded_path = nil) ⇒ Config

Returns a new instance of Config.



24
25
26
27
28
29
30
31
32
33
34
 
# File 'lib/rubocop/config.rb', line 24

def initialize(hash = {}, loaded_path = nil)
  @loaded_path = loaded_path
  @for_cop = Hash.new do |h, cop|
    qualified_cop_name = Cop::Registry.qualified_cop_name(cop, loaded_path)
    cop_options = self[qualified_cop_name] || {}
    cop_options['Enabled'] = enable_cop?(qualified_cop_name, cop_options)
    h[cop] = cop_options
  end
  @hash = hash
  @validator = ConfigValidator.new(self)
end

Instance Attribute Details

#loaded_path ⇒ Object (readonly)

Returns the value of attribute loaded_path.



22
23
24
 
# File 'lib/rubocop/config.rb', line 22

def loaded_path
  @loaded_path
end

Class Method Details

.create(hash, path, check: true) ⇒ Object 



36
37
38
39
40
41
 
# File 'lib/rubocop/config.rb', line 36

def self.create(hash, path, check: true)
  config = new(hash, path)
  config.check if check

  config
end

Instance Method Details

#add_excludes_from_higher_level(highest_config) ⇒ Object 



92
93
94
95
96
97
98
99
100
101
102
 
# File 'lib/rubocop/config.rb', line 92

def add_excludes_from_higher_level(highest_config)
  return unless highest_config.for_all_cops['Exclude']

  excludes = for_all_cops['Exclude'] ||= []
  highest_config.for_all_cops['Exclude'].each do |path|
    unless path.is_a?(Regexp) || absolute?(path)
      path = File.join(File.dirname(highest_config.loaded_path), path)
    end
    excludes << path unless excludes.include?(path)
  end
end

#allowed_camel_case_file?(file) ⇒ Boolean

Returns:

  • (Boolean) 


168
169
170
171
172
173
174
175
176
177
178
 
# File 'lib/rubocop/config.rb', line 168

def allowed_camel_case_file?(file)
  # Gemspecs are allowed to have dashes because that fits with bundler best
  # practices in the case when the gem is nested under a namespace (e.g.,
  # `bundler-console` conveys `Bundler::Console`).
  return true if File.extname(file) == '.gemspec'

  file_to_include?(file) do |pattern, relative_path, absolute_path|
    /[A-Z]/.match?(pattern.to_s) &&
      (match_path?(pattern, relative_path) || match_path?(pattern, absolute_path))
  end
end

#base_dir_for_path_parameters ⇒ Object

Paths specified in configuration files starting with .rubocop are relative to the directory where that file is. Paths in other config files are relative to the current directory. This is so that paths in config/default.yml, for example, are not relative to RuboCop’s config directory since that wouldn’t work.



212
213
214
215
216
217
218
219
220
 
# File 'lib/rubocop/config.rb', line 212

def base_dir_for_path_parameters
  @base_dir_for_path_parameters ||=
    if File.basename(loaded_path).start_with?('.rubocop') &&
       loaded_path != File.join(Dir.home, ConfigLoader::DOTFILE)
      File.expand_path(File.dirname(loaded_path))
    else
      Dir.pwd
    end
end

#bundler_lock_file_path ⇒ Object 



237
238
239
240
241
242
243
244
245
246
 
# File 'lib/rubocop/config.rb', line 237

def bundler_lock_file_path
  return nil unless loaded_path

  base_path = base_dir_for_path_parameters
  ['gems.locked', 'Gemfile.lock'].each do |file_name|
    path = find_file_upwards(file_name, base_path)
    return path if path
  end
  nil
end

#check ⇒ Object 



47
48
49
50
51
52
 
# File 'lib/rubocop/config.rb', line 47

def check
  deprecation_check { |deprecation_message| warn("#{loaded_path} - #{deprecation_message}") }
  @validator.validate
  make_excludes_absolute
  self
end

#deprecation_check ⇒ Object 



104
105
106
107
108
109
110
111
112
113
 
# File 'lib/rubocop/config.rb', line 104

def deprecation_check
  %w[Exclude Include].each do |key|
    plural = "#{key}s"
    next unless for_all_cops[plural]

    for_all_cops[key] = for_all_cops[plural] # Stay backwards compatible.
    for_all_cops.delete(plural)
    yield "AllCops/#{plural} was renamed to AllCops/#{key}"
  end
end

#disabled_new_cops? ⇒ Boolean

Returns:

  • (Boolean) 


141
142
143
 
# File 'lib/rubocop/config.rb', line 141

def disabled_new_cops?
  for_all_cops['NewCops'] == 'disable'
end

#enabled_new_cops? ⇒ Boolean

Returns:

  • (Boolean) 


145
146
147
 
# File 'lib/rubocop/config.rb', line 145

def enabled_new_cops?
  for_all_cops['NewCops'] == 'enable'
end

#file_to_exclude?(file) ⇒ Boolean

Returns:

  • (Boolean) 


190
191
192
193
 
# File 'lib/rubocop/config.rb', line 190

def file_to_exclude?(file)
  file = File.expand_path(file)
  patterns_to_exclude.any? { |pattern| match_path?(pattern, file) }
end

#file_to_include?(file) ⇒ Boolean

Returns:

  • (Boolean) 


149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
 
# File 'lib/rubocop/config.rb', line 149

def file_to_include?(file)
  relative_file_path = path_relative_to_config(file)

  # Optimization to quickly decide if the given file is hidden (on the top
  # level) and cannot be matched by any pattern.
  is_hidden = relative_file_path.start_with?('.') && !relative_file_path.start_with?('..')
  return false if is_hidden && !possibly_include_hidden?

  absolute_file_path = File.expand_path(file)

  patterns_to_include.any? do |pattern|
    if block_given?
      yield pattern, relative_file_path, absolute_file_path
    else
      match_path?(pattern, relative_file_path) || match_path?(pattern, absolute_file_path)
    end
  end
end

#for_all_cops ⇒ Object 



137
138
139
 
# File 'lib/rubocop/config.rb', line 137

def for_all_cops
  @for_all_cops ||= self['AllCops'] || {}
end

#for_badge(badge) ⇒ Config

Note: the ‘Enabled’ attribute is same as that returned by ‘for_cop`

Returns:

  • (Config) —

    for the given cop merged with that of its department (if any)



124
125
126
127
 
# File 'lib/rubocop/config.rb', line 124

def for_badge(badge)
  cop_config = for_cop(badge.to_s)
  fetch(badge.department.to_s) { return cop_config }.merge(cop_config)
end

#for_cop(cop) ⇒ Config

Note: the ‘Enabled’ attribute is calculated according to the department’s and ‘AllCops’ configuration; other attributes are not inherited.

Returns:

  • (Config) —

    for the given cop / cop name.



118
119
120
 
# File 'lib/rubocop/config.rb', line 118

def for_cop(cop)
  @for_cop[cop.respond_to?(:cop_name) ? cop.cop_name : cop]
end

#for_department(department_name) ⇒ Config

Note: the ‘Enabled’ attribute will be present only if specified at the department’s level

Returns:

  • (Config) —

    for the given department name.



132
133
134
135
 
# File 'lib/rubocop/config.rb', line 132

def for_department(department_name)
  @for_department ||= Hash.new { |h, dept| h[dept] = self[dept] || {} }
  @for_department[department_name.to_s]
end

#internal? ⇒ Boolean

True if this is a config file that is shipped with RuboCop

Returns:

  • (Boolean) 


72
73
74
75
 
# File 'lib/rubocop/config.rb', line 72

def internal?
  base_config_path = File.expand_path(File.join(ConfigLoader::RUBOCOP_HOME, 'config'))
  File.expand_path(loaded_path).start_with?(base_config_path)
end

#loaded_features ⇒ Object 



43
44
45
 
# File 'lib/rubocop/config.rb', line 43

def loaded_features
  @loaded_features ||= ConfigLoader.loaded_features
end

#make_excludes_absolute ⇒ Object 



77
78
79
80
81
82
83
84
85
86
87
88
89
90
 
# File 'lib/rubocop/config.rb', line 77

def make_excludes_absolute
  each_key do |key|
    @validator.validate_section_presence(key)
    next unless self[key]['Exclude']

    self[key]['Exclude'].map! do |exclude_elem|
      if exclude_elem.is_a?(String) && !absolute?(exclude_elem)
        File.expand_path(File.join(base_dir_for_path_parameters, exclude_elem))
      else
        exclude_elem
      end
    end
  end
end

#path_relative_to_config(path) ⇒ Object 



203
204
205
 
# File 'lib/rubocop/config.rb', line 203

def path_relative_to_config(path)
  relative_path(path, base_dir_for_path_parameters)
end

#patterns_to_exclude ⇒ Object 



199
200
201
 
# File 'lib/rubocop/config.rb', line 199

def patterns_to_exclude
  for_all_cops['Exclude'] || []
end

#patterns_to_include ⇒ Object 



195
196
197
 
# File 'lib/rubocop/config.rb', line 195

def patterns_to_include
  for_all_cops['Include'] || []
end

#pending_cops ⇒ Object 



248
249
250
251
252
253
254
255
256
257
258
 
# File 'lib/rubocop/config.rb', line 248

def pending_cops
  keys.each_with_object([]) do |qualified_cop_name, pending_cops|
    department = department_of(qualified_cop_name)
    next if department && department['Enabled'] == false

    cop_metadata = self[qualified_cop_name]
    next unless cop_metadata['Enabled'] == 'pending'

    pending_cops << CopConfig.new(qualified_cop_name, cop_metadata)
  end
end

#possibly_include_hidden? ⇒ Boolean

Returns true if there’s a chance that an Include pattern matches hidden files, false if that’s definitely not possible.

Returns:

  • (Boolean) 


182
183
184
185
186
187
188
 
# File 'lib/rubocop/config.rb', line 182

def possibly_include_hidden?
  return @possibly_include_hidden if defined?(@possibly_include_hidden)

  @possibly_include_hidden = patterns_to_include.any? do |s|
    s.is_a?(Regexp) || s.start_with?('.') || s.include?('/.')
  end
end

#signature ⇒ Object 



67
68
69
 
# File 'lib/rubocop/config.rb', line 67

def signature
  @signature ||= Digest::SHA1.hexdigest(to_s)
end

#smart_loaded_path ⇒ Object 



233
234
235
 
# File 'lib/rubocop/config.rb', line 233

def smart_loaded_path
  PathUtil.smart_path(@loaded_path)
end

#target_rails_version ⇒ Object 



222
223
224
225
226
227
228
229
230
231
 
# File 'lib/rubocop/config.rb', line 222

def target_rails_version
  @target_rails_version ||=
    if for_all_cops['TargetRailsVersion']
      for_all_cops['TargetRailsVersion'].to_f
    elsif target_rails_version_from_bundler_lock_file
      target_rails_version_from_bundler_lock_file
    else
      DEFAULT_RAILS_VERSION
    end
end

#to_s ⇒ Object 



63
64
65
 
# File 'lib/rubocop/config.rb', line 63

def to_s
  @to_s ||= @hash.to_s
end

#validate_after_resolution ⇒ Object 



54
55
56
57
 
# File 'lib/rubocop/config.rb', line 54

def validate_after_resolution
  @validator.validate_after_resolution
  self
end