Check update for all GNU packages in Chromebrew

check_update_gnu.rb

# -*- encoding: UTF-8 -*-

$LOAD_PATH << '/usr/local/lib/crew/lib/'
require 'concurrent'
require 'fileutils'
require 'const'
require 'color'

gnu_pkg = `grep -l 'source_url.*\\.gnu\\.' /usr/local/lib/crew/packages/*.rb`.lines(chomp: true)
git_pkg = `grep -l "source_url.*\\.git['\\"]$" /usr/local/lib/crew/packages/*.rb`.lines(chomp: true)

pool = Concurrent::ThreadPoolExecutor.new(
  min_threads: 1,
  max_threads: CREW_NPROC,
  max_queue: 0, # unbounded work queue
  fallback_policy: :caller_runs
)
          
gnu_pkg.each do |file|
  pool.post do
    load file

    pkgName = File.basename(file, '.rb')
    pkg = Object.const_get(pkgName.capitalize)
    pkg.name = pkgName

    current_ver = pkg.version
  
    html = `curl -Ls '#{File.dirname(pkg.source_url)}/'`
    pattern = Regexp.new(File.basename(pkg.source_url).sub(/(?<=-)\d.*?(?=\.tar)/, '(\d.*?)'))
  
    latest_ver = html.scan(pattern).flatten.uniq.sort_by do |ver|
      Gem::Version.new(ver)
    end[-1]
    
    unless latest_ver
      STDERR.puts "#{pkgName}: failed to get the latest version number from HTML".lightred
      next
    end

    if Gem::Version.new(latest_ver) > Gem::Version.new(current_ver.tr('-', '.'))
      if ARGV.include?('--wiki')
        new_url = pkg.source_url.sub(/(?<=-)\d.*?(?=\.tar)/, latest_ver)
        puts "- #{pkgName} | #{new_url} | #{current_ver} | #{latest_ver}"
      else
        puts "#{pkgName}: current => #{current_ver}, latest => #{latest_ver}"
      end
    end
  end
end

pool.shutdown
pool.wait_for_termination