From: Tim Hunter <TimHunter@...>
Date: 2008-09-03T22:22:12+09:00
Subject: Re: downloading files

Marcelo Barbudas wrote:
> Hi,
> 
> Which is the proper way to download a binary file?
> 
> Trying:
> open(temp_path,"w").write(open(http_path).read)
> 
> returns truncated files
> 
> Cheers,
> M.
> 
> 

Are you on Windows? Try opening the output file as "wb" instead of just "w".

Here's a snippet from my RMagick OS X installer script. Ara Howard gave 
me the code. 'uri' is the input URI, something like 
"http://rubyforge.org/frs/download.php/39890/RMagick-2.5.2.tar.gz"

       begin
         open(uri) do |fin|
           open(File.basename(uri), "w") do |fout|
             while (buf = fin.read(8192))
               fout.write buf
             end
           end
         end
       rescue Timeout::Error
         abort <<-END_HTTP_DL_TIMEOUT
         A timeout occurred while downloading #{uri}.
         Probably this is a temporary problem with the host.
         Try again later.
         END_HTTP_DL_TIMEOUT
       end


-- 
RMagick: http://rmagick.rubyforge.org/