Rakefile

# frozen_string_literal: true

require 'open3'

require 'bundler'
require 'bundler/gem_tasks'

begin
  Bundler.setup(:default, :development)
rescue Bundler::BundlerError => e
  warn e.message
  warn 'Run `bundle install` to install missing gems'
  exit e.status_code
end

require 'rspec/core/rake_task'

Dir['tasks/**/*.rake'].each { |t| load t }

RSpec::Core::RakeTask.new(:spec) do |spec|
  spec.pattern = FileList['spec/**/*_spec.rb']
end

desc 'Run RuboCop over this gem'
task :internal_investigation do
  sh('bundle exec rubocop --require rubocop-rspec')
end

desc 'Build config/default.yml'
task :build_config do
  sh('bin/build_config')
end

desc 'Confirm config/default.yml is up to date'
task confirm_config: :build_config do
  _, stdout, _, process =
    Open3.popen3('git diff --exit-code config/default.yml')

  raise <<~ERROR unless process.value.success?
    default.yml is out of sync:

    #{stdout.read}
    Run bin/build_config
  ERROR
end

desc 'Confirm documentation is up to date'
task confirm_documentation: :generate_cops_documentation do
  _, _, _, process =
    Open3.popen3('git diff --exit-code docs/')

  unless process.value.success?
    raise 'Please run `rake generate_cops_documentation` ' \
          'and add docs/ to the commit.'
  end
end

task default: %i[build_config spec
                 internal_investigation
                 confirm_config
                 documentation_syntax_check
                 confirm_documentation]

desc 'Generate a new cop template'
task :new_cop, [:cop] do |_task, args|
  require 'rubocop'

  cop_name = args.fetch(:cop) do
    warn "usage: bundle exec rake 'new_cop[Department/Name]'"
    exit!
  end

  # FIXME: Remove the condition when requiring RuboCop 1.22 or higher.
  #        See: https://github.com/rubocop/rubocop/pull/10109
  if RuboCop::Version::STRING >= '1.22.0'
    generator = RuboCop::Cop::Generator.new(cop_name)
  else
    github_user = `git config github.user`.chop
    github_user = 'your_id' if github_user.empty?
    generator = RuboCop::Cop::Generator.new(cop_name, github_user)
  end

  generator.write_source
  generator.write_spec
  generator.inject_require(root_file_path: 'lib/rubocop/cop/rspec_cops.rb')
  generator.inject_config(config_file_path: 'config/default.yml',
                          version_added: bump_minor_version)

  puts generator.todo
end

def bump_minor_version
  major, minor, _patch = RuboCop::RSpec::Version::STRING.split('.')

  "#{major}.#{minor.succ}.0"
end