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auto_genenerate_config.rb
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auto_genenerate_config.rb
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# frozen_string_literal: true
module RuboCop
class CLI
module Command
# Generate a configuration file acting as a TODO list.
class AutoGenerateConfig < Base
self.command_name = :auto_gen_config
AUTO_GENERATED_FILE = '.rubocop_todo.yml'
PHASE_1 = 'Phase 1 of 2: run Layout/LineLength cop'
PHASE_2 = 'Phase 2 of 2: run all cops'
PHASE_1_OVERRIDDEN =
'(skipped because the default Layout/LineLength:Max is overridden)'
PHASE_1_DISABLED =
'(skipped because Layout/LineLength is disabled)'
def run
add_formatter
reset_config_and_auto_gen_file
line_length_contents = maybe_run_line_length_cop
run_all_cops(line_length_contents)
end
private
def maybe_run_line_length_cop
if !line_length_enabled?(@config_store.for_pwd)
skip_line_length_cop(PHASE_1_DISABLED)
elsif !same_max_line_length?(
@config_store.for_pwd, ConfigLoader.default_configuration
)
skip_line_length_cop(PHASE_1_OVERRIDDEN)
else
run_line_length_cop
end
end
def skip_line_length_cop(reason)
puts Rainbow("#{PHASE_1} #{reason}").yellow
''
end
def line_length_enabled?(config)
line_length_cop(config)['Enabled']
end
def same_max_line_length?(config1, config2)
max_line_length(config1) == max_line_length(config2)
end
def max_line_length(config)
line_length_cop(config)['Max']
end
def line_length_cop(config)
config.for_cop('Layout/LineLength')
end
# Do an initial run with only Layout/LineLength so that cops that
# depend on Layout/LineLength:Max get the correct value for that
# parameter.
def run_line_length_cop
puts Rainbow(PHASE_1).yellow
@options[:only] = ['Layout/LineLength']
execute_runner
@options.delete(:only)
@config_store = ConfigStore.new
# Save the todo configuration of the LineLength cop.
IO.read(AUTO_GENERATED_FILE)
.lines
.drop_while { |line| line.start_with?('#') }
.join
end
def run_all_cops(line_length_contents)
puts Rainbow(PHASE_2).yellow
result = execute_runner
# This run was made with the current maximum length allowed, so append
# the saved setting for LineLength.
File.open(AUTO_GENERATED_FILE, 'a') do |f|
f.write(line_length_contents)
end
result
end
def reset_config_and_auto_gen_file
@config_store = ConfigStore.new
@config_store.options_config = @options[:config] if @options[:config]
File.open(AUTO_GENERATED_FILE, 'w') {}
add_inheritance_from_auto_generated_file(@options[:config])
end
def add_formatter
@options[:formatters] << [Formatter::DisabledConfigFormatter,
AUTO_GENERATED_FILE]
end
def execute_runner
Environment.new(@options, @config_store, @paths).run(:execute_runner)
end
def add_inheritance_from_auto_generated_file(config_file)
file_string = " #{AUTO_GENERATED_FILE}"
config_file ||= ConfigLoader::DOTFILE
if File.exist?(config_file)
files = Array(ConfigLoader.load_yaml_configuration(config_file)['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 = existing_configuration(config_file)
end
write_config_file(config_file, file_string, rubocop_yml_contents)
puts "Added inheritance from `#{AUTO_GENERATED_FILE}` in `#{ConfigLoader::DOTFILE}`."
end
def existing_configuration(config_file)
IO.read(config_file, encoding: Encoding::UTF_8)
.sub(/^inherit_from: *[^\n]+/, '')
.sub(/^inherit_from: *(\n *- *[^\n]+)+/, '')
end
def write_config_file(file_name, file_string, rubocop_yml_contents)
File.open(file_name, 'w') do |f|
f.write "inherit_from:#{file_string}\n"
f.write "\n#{rubocop_yml_contents}" if /\S/.match?(rubocop_yml_contents)
end
end
end
end
end
end