Decompressing a tar.gz archive in Elixir with Erlang's :erl_tar module.

extract_tar_from_binary.ex

@doc"""
Returns a map containing all files and their contents from the compressed tar archive.
"""
def extract_tar_from_binary(binary) do
  with {:ok, files} <- :erl_tar.extract({:binary, binary}, [:memory, :compressed]) do
    files
    |> Enum.map(fn {filename, content} -> {to_string(filename), content} end)
    |> Map.new
  end
end