Ruby version of sync_loop_unix.sh from imapsync to handle double quotes in $extra

sync_loop_unix.rb

#!/home/xxx/.rbenv/versions/3.2.0/bin/ruby

require 'open3'

def ms2str(ms)
  return nil if ms.nil?
  x, ms = ms.divmod(1000)
  x, s  = x.divmod(60)
  x, m  = x.divmod(60)
  d, h  = x.divmod(24)
  s = [d,h,m,s,ms.to_i]
    .zip(["d", "h", "m", "s", "ms"])
    .filter { |duration, unit| duration != 0 }
    .map { |duration, unit| "#{duration} #{unit}" }
    .join(" ")
  if s.empty? then "< 1 ms" else s end
end

line_cnt = 0
IO.foreach("/home/xxx/bin/file.txt") do |line|
    line_cnt += 1
    next if line.match(/^\s*#|^\s*$/)
    a = line.chomp.split(";")
    h1, u1, p1, h2, u2, p2, extra = a
    # puts "==== Starting imapsync with --host1 #{h1} --user1 #{u1} --host2 #{h2} --user2 #{u2} #{extra} ===="
    cmd = "imapsync --host1 \"#{h1}\" --user1 \"#{u1}\" --password1 \"#{p1}\" --host2 \"#{h2}\" --user2 \"#{u2}\" --password2 \"#{p2}\" #{extra}"
    t = Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond)
    o, e, s = Open3.capture3(cmd)
    elapsed = Process.clock_gettime(Process::CLOCK_MONOTONIC, :millisecond) - t
    if s.to_i == 0
      # puts "success sync for line #{line_cnt}"
      # puts "ok for #{u1} in #{ms2str(elapsed)}"
      # STDOUT.puts o
      nil
    else
      # STDERR.puts "failure for #{h1};#{u1} -> #{h2};#{u2} with #{extra} "
      STDERR.puts "ko! for #{u1} in #{ms2str(elapsed)}"
      STDERR.puts o
    end
    # puts "==== Ended imapsync in #{ms2str(elapsed)} with --host1 #{h1} --user1 #{u1} --host2 #{h2} --user2 #{u2} #{extra} ===="
    # puts "\n\n\n"
end