# frozen_string_literal: true

– # Yast rake # # Copyright (C) 2018 SUSE LLC # This library is free software; you can redistribute it and/or modify # it only under the terms of version 2.1 of the GNU Lesser General Public # License as published by the Free Software Foundation. # # This library is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more # details. # ++

def rubocop_bin

return @rubocop_bin if @rubocop_bin
return @rubocop_bin = ENV["RUBOCOP_BIN"] if ENV["RUBOCOP_BIN"]

version = File.read(".rubocop.yml").include?("rubocop-0.71.0") ? "0.71.0" : "0.41.2"
binary = `/usr/sbin/update-alternatives --list rubocop | grep '#{version}'`.strip
if !system("which #{binary}")
  raise "cannot find proper version of rubocop binary in " \
    "'/usr/sbin/update-alternatives --list rubocop'." \
    "If rubocop is installed via gem, define its binary name via env variable RUBOCOP_BIN."
end
@rubocop_bin = binary

end

# run Rubocop in parallel # @param params [String] optional Rubocop parameters def run_rubocop(params = “”)

# how it works:
# 1) get the list of inspected files by Rubocop
# 2) shuffle it randomly (better would be evenly distribute them according to
#    the analysis complexity but that is hard to evaluate and even simply
#    distributing by file size turned out to be ineffective and slower than
#    a simple random shuffling)
# 3) pass that as input for xargs
#    a) use -P with number of processors to run the commands in parallel
#    b) use -n to set the maximum number of files per process, this number
#       is computed to equally distribute the files across the workers
sh "#{rubocop_bin} -L | sort -R | xargs -P`nproc` -n$(expr `#{rubocop_bin} -L | wc -l` / " \
  "`nproc` + 1) #{rubocop_bin} #{params}"

end

namespace :check do

desc "Run Rubocop in parallel"
task :rubocop, [:options] do |_task, args|
  args.with_defaults = { options: "" }
  run_rubocop(args[:options])
end

desc "Run Rubocop in parallel in the auto correct mode"
task :"rubocop:auto_correct", [:options] do |_task, args|
  args.with_defaults = { options: "" }
  run_rubocop("-a #{args[:options]}")
end

end