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 = 
ConfigFinder::DOTFILE
RUBOCOP_HOME = 
File.realpath(File.join(File.dirname(__FILE__), '..', '..'))
DEFAULT_FILE = 
File.join(RUBOCOP_HOME, 'config', 'default.yml')

Class Attribute Summary collapse

Class Method Summary collapse

Methods included from FileFinder

find_file_upwards, find_last_file_upwards, traverse_directories_upwards

Class Attribute Details

.cache_root ⇒ Object

Returns the value of attribute cache_root.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def cache_root
  @cache_root
end

.debug ⇒ Object Also known as: debug?

Returns the value of attribute debug.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def debug
  @debug
end

.default_configuration ⇒ Object 



143
144
145
146
147
148
 
# File 'lib/rubocop/config_loader.rb', line 143

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

.disable_pending_cops ⇒ Object

Returns the value of attribute disable_pending_cops.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def disable_pending_cops
  @disable_pending_cops
end

.enable_pending_cops ⇒ Object

Returns the value of attribute enable_pending_cops.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def enable_pending_cops
  @enable_pending_cops
end

.ignore_parent_exclusion ⇒ Object Also known as: ignore_parent_exclusion?

Returns the value of attribute ignore_parent_exclusion.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def ignore_parent_exclusion
  @ignore_parent_exclusion
end

.ignore_unrecognized_cops ⇒ Object

Returns the value of attribute ignore_unrecognized_cops.



25
26
27
 
# File 'lib/rubocop/config_loader.rb', line 25

def ignore_unrecognized_cops
  @ignore_unrecognized_cops
end

.loaded_features ⇒ Object (readonly)

Returns the value of attribute loaded_features.



28
29
30
 
# File 'lib/rubocop/config_loader.rb', line 28

def loaded_features
  @loaded_features
end

.loaded_plugins ⇒ Object (readonly)

Returns the value of attribute loaded_plugins.



28
29
30
 
# File 'lib/rubocop/config_loader.rb', line 28

def loaded_plugins
  @loaded_plugins
end

Class Method Details

.add_excludes_from_files(config, config_file) ⇒ Object 



133
134
135
136
137
138
139
140
141
 
# File 'lib/rubocop/config_loader.rb', line 133

def add_excludes_from_files(config, config_file)
  exclusion_file = find_last_file_upwards(DOTFILE, config_file, ConfigFinder.project_root)

  return unless exclusion_file
  return if PathUtil.relative_path(exclusion_file) == PathUtil.relative_path(config_file)

  print 'AllCops/Exclude ' if debug?
  config.add_excludes_from_higher_level(load_file(exclusion_file))
end

.add_loaded_features(loaded_features) ⇒ 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.

Used to add features that were required inside a config or from the CLI using ‘–require`.



207
208
209
 
# File 'lib/rubocop/config_loader.rb', line 207

def add_loaded_features(loaded_features)
  @loaded_features.merge(Array(loaded_features))
end

.add_loaded_plugins(loaded_plugins) ⇒ 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.

Used to add plugins that were required inside a config or from the CLI using ‘–plugin`.



200
201
202
 
# File 'lib/rubocop/config_loader.rb', line 200

def add_loaded_plugins(loaded_plugins)
  @loaded_plugins.merge(Array(loaded_plugins))
end

.add_missing_namespaces(path, hash) ⇒ Object 



86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/rubocop/config_loader.rb', line 86

def add_missing_namespaces(path, hash)
  # Using `hash.each_key` will cause the
  # `can't add a new key into hash during iteration` error
  obsoletion = ConfigObsoletion.new(hash)

  hash_keys = hash.keys
  hash_keys.each do |key|
    next if obsoletion.deprecated_cop_name?(key)

    q = Cop::Registry.qualified_cop_name(key, path)
    next if q == key

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

.clear_options ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/rubocop/config_loader.rb', line 33

def clear_options
  @debug = nil
  @loaded_plugins = Set.new
  @loaded_features = Set.new
  @disable_pending_cops = nil
  @enable_pending_cops = nil
  @ignore_parent_exclusion = nil
  @ignore_unrecognized_cops = nil
  @cache_root = 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.



114
115
116
 
# File 'lib/rubocop/config_loader.rb', line 114

def configuration_file_for(target_dir)
  ConfigFinder.find_config_path(target_dir)
end

.configuration_from_file(config_file, check: true) ⇒ Object 



118
119
120
121
122
123
124
125
126
127
128
129
130
131
 
# File 'lib/rubocop/config_loader.rb', line 118

def configuration_from_file(config_file, check: true)
  return default_configuration if config_file == DEFAULT_FILE

  config = load_file(config_file, check: check)
  config.validate_after_resolution if check

  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

.inject_defaults!(config_yml_path) ⇒ Object

This API is primarily intended for testing and documenting plugins. When testing a plugin using ‘rubocop/rspec/support`, the plugin is loaded automatically, so this API is usually not needed. It is intended to be used only when implementing tests that do not use `rubocop/rspec/support`. rubocop:disable Metrics/MethodLength



155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
 
# File 'lib/rubocop/config_loader.rb', line 155

def inject_defaults!(config_yml_path)
  if Pathname(config_yml_path).directory?
    # TODO: Since the warning noise is expected to be high until some time after the release,
    # warnings will only be issued when `RUBYOPT=-w` is specified.
    # To proceed step by step, the next step is to remove `$VERBOSE` and always issue warning.
    # Eventually, `project_root` will no longer be accepted.
    if $VERBOSE
      warn Rainbow("        Use config YAML file path instead of project root directory.\n        e.g., `path/to/config/default.yml`\n      MESSAGE\n    end\n    # NOTE: For compatibility.\n    project_root = config_yml_path\n    path = File.join(project_root, 'config', 'default.yml')\n    config = load_file(path)\n  else\n    hash = ConfigLoader.load_yaml_configuration(config_yml_path.to_s)\n    config = Config.new(hash, config_yml_path).tap(&:make_excludes_absolute)\n  end\n\n  @default_configuration = ConfigLoader.merge_with_default(config, path)\nend\n").yellow, uplevel: 1

.load_file(file, check: true) ⇒ Object

rubocop:disable Metrics/AbcSize



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/rubocop/config_loader.rb', line 46

def load_file(file, check: true)
  path = file_path(file)

  hash = load_yaml_configuration(path)

  rubocop_config = Config.create(hash, path, check: false)
  plugins = hash.delete('plugins')
  loaded_plugins = resolver.resolve_plugins(rubocop_config, plugins)
  add_loaded_plugins(loaded_plugins)

  loaded_features = resolver.resolve_requires(path, hash)
  add_loaded_features(loaded_features)

  resolver.resolve_inheritance_from_gems(hash)
  resolver.resolve_inheritance(path, hash, file, debug?)
  hash.delete('inherit_from')

  # Adding missing namespaces only after resolving requires & inheritance,
  # since both can introduce new cops that need to be considered here.
  add_missing_namespaces(path, hash)

  Config.create(hash, path, check: check)
end

.load_yaml_configuration(absolute_path) ⇒ Object

rubocop:enable Metrics/AbcSize



71
72
73
74
75
76
77
78
79
80
81
82
83
84
 
# File 'lib/rubocop/config_loader.rb', line 71

def load_yaml_configuration(absolute_path)
  file_contents = read_file(absolute_path)
  yaml_code = Dir.chdir(File.dirname(absolute_path)) { ERB.new(file_contents).result }
  yaml_tree = check_duplication(yaml_code, absolute_path)
  hash = yaml_tree_to_hash(yaml_tree) || {}

  puts "configuration from #{absolute_path}" if debug?

  unless hash.is_a?(Hash)
    raise(ValidationError, "Malformed configuration in #{absolute_path}")
  end

  hash
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.



105
106
107
 
# File 'lib/rubocop/config_loader.rb', line 105

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

.merge_with_default(config, config_file, unset_nil: true) ⇒ Object

Merges the given configuration with the default one.



193
194
195
 
# File 'lib/rubocop/config_loader.rb', line 193

def merge_with_default(config, config_file, unset_nil: true)
  resolver.merge_with_default(config, config_file, unset_nil: unset_nil)
end

.project_root ⇒ Object

Deprecated.

Use ‘RuboCop::ConfigFinder.project_root` instead.

Returns the path RuboCop inferred as the root of the project. No file searches will go past this directory.



183
184
185
186
187
188
189
190
 
# File 'lib/rubocop/config_loader.rb', line 183

def project_root
  warn Rainbow("    `RuboCop::ConfigLoader.project_root` is deprecated and will be removed in RuboCop 2.0. \\\n    Use `RuboCop::ConfigFinder.project_root` instead.\n  WARNING\n\n  ConfigFinder.project_root\nend\n").yellow, uplevel: 1