My ssh package is the stock one with ubuntu hardy.
In /etc/ssh/sshd_config i added a line "Compression yes", which appeared
to turn the compression on after I restarted sshd.
Does
ssh_options[:compression] = true
also compress the net/scp and net/sftp streams as well?
Also, what's a 'judo option'?
Jamis Buck wrote:
> One judo option would be:
>
> ssh_options[:compression] = true
>
> That will enable zlib compression for your entire SSH session
> (assuming your SSH server is configured to allow zlib transport).
>
> Aside from that, note that if you do the zlib compression of the data
> using the Zlib ruby bindings, you'll need to make sure and uncompress
> the files on the other end.
>
> - Jamis
>
> On Jun 3, 2008, at 9:45 AM, Sam Granieri wrote:
>
>> Is there a way to wrap the file upload/download stream with zlib
>> compression?
>>
>> I have to upload and download easily compressible log and csv files.
>> They're huge, and take a while. I tried shelling out the compression
>> task, but several coworkers are using windows (I'm on a Mac).
>>
>> I found Ruby has a built-in zlib library which compresses CSVs and log
>> files very very nicely.
>>
>> If no one has already done this, I'm going to try to wrap my file
>> upload
>> and download tasks with Zlib compression.
>>
>> I'll then try to extract that functionality and move it into
>> Capistrano
>> itself.
>>
>> I'll share the results and propose it as a patch for further release
>>
>> Here's the uncompressed task I'm using as it stands now.
>>
>> desc "Upload CSV Files"
>> task :copy do
>> Dir.glob("lib/imports/**/*.csv") do |file|
>> put(File.read(file), "#{shared_path}/#{file}")
>> end
>> end
>>
>> What I'm writing now is
>> desc "Upload CSV Files"
>> task :copy do
>> Dir.glob("lib/imports/**/*.csv") do |file|
>> put(Deflate.deflate(File.read(file)), "#{shared_path}/#{file}")
>> # write a rake task that runs zlib inflate on the file
>> end
>> end
>>
>> Here's the syntax I'm shooting for.
>>
>> desc "Upload CSV Files"
>> task :copy do
>> Dir.glob("lib/imports/**/*.csv") do |file|
>> put(File.read(file), "#{shared_path}/#{file}", :compress=>:zlib)
>> end
>> end
>>
>> I hope this helps!
>>
>>
>
>
> >
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