Zstream

An Elixir library to read and write ZIP file in a streaming fashion. It could consume data from any stream and write to any stream with constant memory overhead.

Installation

The package can be installed by adding :zstream to your list of dependencies in mix.exs:

def deps do
  [
    {:zstream, "~> 0.6"}
  ]
end

Examples

Zstream.zip([
  Zstream.entry("report.csv", Stream.map(records, &CSV.dump/1)),
  Zstream.entry("catfilm.mp4", File.stream!("/catfilm.mp4", [], 512), coder: Zstream.Coder.Stored)
])
|> Stream.into(File.stream!("/archive.zip"))
|> Stream.run

File.stream!("archive.zip", [], 512)
|> Zstream.unzip()
|> Enum.reduce(%{}, fn
  {:entry, %Zstream.Entry{name: file_name} = entry}, state -> state
  {:data, :eof}, state -> state
  {:data, data}, state -> state
end)

Features

zip

• compression (deflate, stored)
• encryption (traditional)
• zip64

unzip

• compression (deflate, stored)
• zip64

License

Copyright (c) 2017 Anantha Kumaran

This library is MIT licensed. See the LICENSE for details.