/
cops_documentation_generator.rb
341 lines (284 loc) · 10.4 KB
/
cops_documentation_generator.rb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
# frozen_string_literal: true
require 'fileutils'
# Class for generating documentation of all cops departments
# @api private
class CopsDocumentationGenerator # rubocop:disable Metrics/ClassLength
include ::RuboCop::Cop::Documentation
# This class will only generate documentation for cops that belong to one of
# the departments given in the `departments` array. E.g. if we only wanted
# documentation for Lint cops:
#
# CopsDocumentationGenerator.new(departments: ['Lint']).call
#
def initialize(departments: [])
@departments = departments.map(&:to_sym).sort!
@cops = RuboCop::Cop::Registry.global
@config = RuboCop::ConfigLoader.default_configuration
@docs_path = "#{Dir.pwd}/docs/modules/ROOT/pages/"
FileUtils.mkdir_p(@docs_path)
end
def call
YARD::Registry.load!
departments.each { |department| print_cops_of_department(department) }
print_table_of_contents
ensure
RuboCop::ConfigLoader.default_configuration = nil
end
private
attr_reader :departments, :cops, :config, :docs_path
def cops_of_department(department)
cops.with_department(department).sort!
end
def cops_body(cop, description, examples_objects, safety_objects, see_objects, pars) # rubocop:disable Metrics/AbcSize, Metrics/ParameterLists
check_examples_to_have_the_default_enforced_style!(examples_objects, cop)
content = h2(cop.cop_name)
content << required_ruby_version(cop)
content << properties(cop)
content << "#{description}\n"
content << safety_object(safety_objects) if safety_objects.any? { |s| !s.text.blank? }
content << examples(examples_objects) if examples_objects.any?
content << configurations(cop.department, pars)
content << references(cop, see_objects)
content
end
def check_examples_to_have_the_default_enforced_style!(examples_object, cop)
return if examples_object.none?
examples_describing_enforced_style = examples_object.map(&:name).grep(/EnforcedStyle:/)
return if examples_describing_enforced_style.none?
if examples_describing_enforced_style.index { |name| name.match?('default') }.nonzero?
raise "Put the example with the default EnforcedStyle on top for #{cop.cop_name}"
end
return if examples_describing_enforced_style.any? { |name| name.match?('default') }
raise "Specify the default EnforcedStyle for #{cop.cop_name}"
end
def examples(examples_object)
examples_object.each_with_object(h3('Examples').dup) do |example, content|
content << "\n" unless content.end_with?("\n\n")
content << h4(example.name) unless example.name == ''
content << code_example(example)
end
end
def safety_object(safety_object_objects)
safety_object_objects.each_with_object(h3('Safety').dup) do |safety_object, content|
next if safety_object.text.blank?
content << "\n" unless content.end_with?("\n\n")
content << safety_object.text
content << "\n"
end
end
def required_ruby_version(cop)
return '' unless cop.respond_to?(:required_minimum_ruby_version)
"NOTE: Required Ruby version: #{cop.required_minimum_ruby_version}\n\n"
end
# rubocop:disable Metrics/MethodLength
def properties(cop)
header = [
'Enabled by default', 'Safe', 'Supports autocorrection', 'Version Added',
'Version Changed'
]
autocorrect = if cop.support_autocorrect?
context = cop.new.always_autocorrect? ? 'Always' : 'Command-line only'
"#{context}#{' (Unsafe)' unless cop.new(config).safe_autocorrect?}"
else
'No'
end
cop_config = config.for_cop(cop)
content = [[
cop_status(cop_config.fetch('Enabled')),
cop_config.fetch('Safe', true) ? 'Yes' : 'No',
autocorrect,
cop_config.fetch('VersionAdded', '-'),
cop_config.fetch('VersionChanged', '-')
]]
"#{to_table(header, content)}\n"
end
# rubocop:enable Metrics/MethodLength
def h2(title)
content = +"\n"
content << "== #{title}\n"
content << "\n"
content
end
def h3(title)
content = +"\n"
content << "=== #{title}\n"
content << "\n"
content
end
def h4(title)
content = +"==== #{title}\n"
content << "\n"
content
end
def code_example(ruby_code)
content = +"[source,ruby]\n----\n"
content << ruby_code.text.gsub('@good', '# good').gsub('@bad', '# bad').strip
content << "\n----\n"
content
end
def configurations(department, pars)
return '' if pars.empty?
header = ['Name', 'Default value', 'Configurable values']
configs = pars
.each_key
.reject { |key| key.start_with?('Supported') }
.reject { |key| key.start_with?('AllowMultipleStyles') }
content = configs.map do |name|
configurable = configurable_values(pars, name)
default = format_table_value(pars[name])
[configuration_name(department, name), default, configurable]
end
h3('Configurable attributes') + to_table(header, content)
end
def configuration_name(department, name)
return name unless name == 'AllowMultilineFinalElement'
filename = "#{department_to_basename(department)}.adoc"
"xref:#{filename}#allowmultilinefinalelement[AllowMultilineFinalElement]"
end
# rubocop:disable Metrics/CyclomaticComplexity,Metrics/MethodLength
def configurable_values(pars, name)
case name
when /^Enforced/
supported_style_name = RuboCop::Cop::Util.to_supported_styles(name)
format_table_value(pars[supported_style_name])
when 'IndentationWidth'
'Integer'
when 'Database'
format_table_value(pars['SupportedDatabases'])
else
case pars[name]
when String
'String'
when Integer
'Integer'
when Float
'Float'
when true, false
'Boolean'
when Array
'Array'
else
''
end
end
end
# rubocop:enable Metrics/CyclomaticComplexity,Metrics/MethodLength
def to_table(header, content)
table = ['|===', "| #{header.join(' | ')}\n\n"].join("\n")
marked_contents = content.map do |plain_content|
# Escape `|` with backslash to prevent the regexp `|` is not used as a table separator.
plain_content.map { |c| "| #{c.gsub('|', '\|')}" }.join("\n")
end
table << marked_contents.join("\n\n")
table << "\n|===\n"
end
def format_table_value(val)
value =
case val
when Array
if val.empty?
'`[]`'
else
val.map { |config| format_table_value(config) }.join(', ')
end
else
wrap_backtick(val.nil? ? '<none>' : val)
end
value.gsub("#{Dir.pwd}/", '').rstrip
end
def wrap_backtick(value)
if value.is_a?(String)
# Use `+` to prevent text like `**/*.gemspec`, `spec/**/*` from being bold.
value.include?('*') ? "`+#{value}+`" : "`#{value}`"
else
"`#{value}`"
end
end
def references(cop, see_objects) # rubocop:disable Metrics/AbcSize
cop_config = config.for_cop(cop)
urls = RuboCop::Cop::MessageAnnotator.new(config, cop.name, cop_config, {}).urls
return '' if urls.empty? && see_objects.empty?
content = h3('References')
content << urls.map { |url| "* #{url}" }.join("\n")
content << "\n" unless urls.empty?
content << see_objects.map { |see| "* #{see.name}" }.join("\n")
content << "\n" unless see_objects.empty?
content
end
def footer_for_department(department)
return '' unless department == :Layout
filename = "#{department_to_basename(department)}_footer.adoc"
file = "#{Dir.pwd}/docs/modules/ROOT/partials/#{filename}"
return '' unless File.exist?(file)
"\ninclude::../partials/#{filename}[]\n"
end
# rubocop:disable Metrics/MethodLength
def print_cops_of_department(department)
selected_cops = cops_of_department(department)
content = +<<~HEADER
////
Do NOT edit this file by hand directly, as it is automatically generated.
Please make any necessary changes to the cop documentation within the source files themselves.
////
= #{department}
HEADER
selected_cops.each { |cop| content << print_cop_with_doc(cop) }
content << footer_for_department(department)
file_name = "#{docs_path}/#{department_to_basename(department)}.adoc"
File.open(file_name, 'w') do |file|
puts "* generated #{file_name}"
file.write("#{content.strip}\n")
end
end
# rubocop:enable Metrics/MethodLength
def print_cop_with_doc(cop) # rubocop:todo Metrics/AbcSize, Metrics/MethodLength
cop_config = config.for_cop(cop)
non_display_keys = %w[
AutoCorrect Description Enabled StyleGuide Reference Safe SafeAutoCorrect VersionAdded
VersionChanged
]
pars = cop_config.reject { |k| non_display_keys.include? k }
description = 'No documentation'
examples_object = safety_object = see_object = []
cop_code(cop) do |code_object|
description = code_object.docstring unless code_object.docstring.blank?
examples_object = code_object.tags('example')
safety_object = code_object.tags('safety')
see_object = code_object.tags('see')
end
cops_body(cop, description, examples_object, safety_object, see_object, pars)
end
def cop_code(cop)
YARD::Registry.all(:class).detect do |code_object|
next unless RuboCop::Cop::Badge.for(code_object.to_s) == cop.badge
yield code_object
end
end
def table_of_content_for_department(department)
type_title = department[0].upcase + department[1..]
filename = "#{department_to_basename(department)}.adoc"
content = +"=== Department xref:#{filename}[#{type_title}]\n\n"
cops_of_department(department).each do |cop|
anchor = cop.cop_name.sub('/', '').downcase
content << "* xref:#{filename}##{anchor}[#{cop.cop_name}]\n"
end
content
end
def print_table_of_contents
path = "#{docs_path}/cops.adoc"
File.write(path, table_contents) and return unless File.exist?(path)
original = File.read(path)
content = +"// START_COP_LIST\n\n"
content << table_contents
content << "\n// END_COP_LIST"
content = original.sub(%r{// START_COP_LIST.+// END_COP_LIST}m, content)
File.write(path, content)
end
def table_contents
departments.map { |department| table_of_content_for_department(department) }.join("\n")
end
def cop_status(status)
return 'Disabled' unless status
status == 'pending' ? 'Pending' : 'Enabled'
end
end