send_zip

This gem enables Rails(or any Rack based app) to send the files with being zipped dynamically. Features are:

Downloading starts immediately, so you don't need to wait until files are compeltely zipped. It's nice for downloading large sized files.
Can zip a file, files, or folder. Zipped folder keeps the directory structure.
Can set the encoding of file name in the zip. Now only UTF-8 and Shift-JIS are supported.

This gem is based on zipping.

Getting Started

Add the following line to your Gemfile:

gem 'send_zip'

In your controller, include SendZip

class DownloadController < ApplicationController
  include SendZip

  ...
end

then you can use send_zip with the argument of file path.

def download
  send_zip '/path/to/file'
end

You can set an array of files

send_zip ['/path/to/file', '/path/to/another']

or folder

send_zip '/path/to/folder'

Some options are available like send_file.

send_zip '/path/to/file', filename: 'foo.zip', buffer_size: 1024

Option	Description	Default
`:filename`	Filename	File.basename(path) + '.zip'
`:type`	MIME-Type	'application/zip'
`:disposition`		'attachment'
`:buffer_size`		1048576
`:encoding`	Filename encoding type. Now :utf8 and :shift_jis	:utf8

WEBrick is not compatible with HTTP Streaming. Use Puma, Unicorn, thin, etc. I recommend puma.

Rails4 with Puma. Rails sample