RubyZip：归档过程指示

Question

I am adding tons of file to my archive it looks like this:

print "Starting ..."
Zip::ZipFile.open(myarchive, 'w') do |zipfile|
  my_tons_of_files.each do |file|
    print "Adding #{file.filename} to archive ... \r"
    # ...
  end
  print "\n Saving archive"
  # !!! -> waiting about 10-15 minutes
  # but I want to show the percentage of completed job
end

After all files are added to my archive it starts to compress them all (about 10-15 minutes).

How can I indicate what is actually going on with rubyzip gem (actually I want to show percentage like current_file_number/total_files_count ).

Answer 1

You can override Zip::ZipFile.commit:

require 'zip'
require 'zip/zipfilesystem'

module Zip
class ZipFile

    def commit
     return if ! commit_required?
      on_success_replace(name) {
        |tmpFile|
        ZipOutputStream.open(tmpFile) {
          |zos|

          total_files = @entrySet.length
          current_files = 1
          @entrySet.each do |e|
             puts "Current file: #{current_files}, Total files: #{total_files}"
             current_files += 1
             e.write_to_zip_output_stream(zos)
          end
          zos.comment = comment
        }
        true
      }
      initialize(name)
    end

end
end

print "Starting ..."
Zip::ZipFile.open(myarchive, 'w') do |zipfile|