From: Jamis Buck <jamis@37signals.com>
Date: 2006-02-15T00:36:55+09:00
Subject: Re: net/sftp 1.10 errors

On Feb 14, 2006, at 6:03 AM, zdennis wrote:

> I recently downloaded net/ssh 1.0.7 and net/sftp 1.1.0. But I get  
> problems with ruby 1.8.2, 1.8.3 on either windows, debian or ubuntu  
> boxes.
>
> require 'rubygems'
> require 'net/sftp'
>
> sftp_sess = Net::SFTP.start 'host', 'username', 'password'
> sftp_sess.put_file '/home/uberriffic/test.txt', '/home/uberriffic/ 
> remote_test.txt'
> NoMethodError: private method `open' called for  
> #<Net::SFTP::Protocol::Driver:0xb7863790>
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/protocol/driver.rb:201:in `method_missing'
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/operations/open.rb:27:in `perform'
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/operations/abstract.rb:64:in `execute'
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/session.rb:253:in `method_missing'
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/session.rb:177:in `open_handle'
>         from /usr/lib/ruby/gems/1.8/gems/net-sftp-1.1.0/lib/net/ 
> sftp/session.rb:203:in `put_file'
>         from (irb):4
>         from :0

Here are two workarounds:

First, you can use a block to Net::SFTP.start:

   Net::SFTP.start(...) do |sess|
     sess.put_file(...)
   end

Or, if you can't use the block format for whatever reason, be sure to  
call #connect after calling start:

   sess = Net::SFTP.start(...)
   sess.connect
   sess.put_file(...)

Not sure why that connect isn't being called automatically, but I'll  
look into it.

- Jamis