Class: URI::Ssh

Inherits:
GenericEx show all
Defined in:
lib/uri/ssh.rb

Constant Summary collapse

SCHEME = 
'ssh'.freeze
DEFAULT_HOST = 
'localhost'.freeze
DEFAULT_PORT = 
22
DEFAULT_QUERY = 
''.freeze
COMPONENT = 
[
  :scheme,
  :userinfo,
  :host,
  :path,
  :query
].freeze

Instance Method Summary collapse

Methods inherited from Generic

#add_query, #mk_custom_opts, #pathname, #pathname=, #to_uri, #to_yaml_string, yaml_load

Instance Method Details

#checkout ⇒ Object 



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# File 'lib/uri/ssh.rb', line 39

def checkout
  out = TempPath.new('checkout', pathname.basename.to_s)
  [out, shell.scp!(mk_opts, mk_scp_arg, out)]
end

#commit(aPath) ⇒ Object 



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# File 'lib/uri/ssh.rb', line 48

def commit ( aPath )
  shell.scp! mk_opts, aPath, mk_scp_arg
end

#jump_and_eval(aString, ruby = 'ruby', ruby_opts = [], &block) ⇒ Object Also known as: remote_eval 



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# File 'lib/uri/ssh.rb', line 52

def jump_and_eval ( aString, ruby='ruby', ruby_opts=[], &block )
  tag = "=== RESULT ===\n"
  TempPath.new do |tmp|
    tmp.open('w') do |f|
      f.print "
        aProc = proc { #{aString} }
        result =
          begin
            [true, aProc[]]
          rescue Exception => ex
            [false, ex]
          end
        STDERR.print '#{tag}'
        STDERR.print Marshal.dump(result)
      "
    end
    cmd = shell.ssh(mk_opts, mk_ssh_arg, ruby, *ruby_opts) < tmp
    data = cmd.popen
    block[data.output]
    data.waitpid
    if data.status.success?
      err = data.error.read
      err, result = err.split(tag)
      STDERR.print err
      st, obj = Marshal.load(result)
      if st
        return obj
      else
        raise obj
      end
    else
      data.display
      raise "Command failed #{cmd}"
    end
  end
end

#mk_opts ⇒ Object 



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# File 'lib/uri/ssh.rb', line 23

def mk_opts
  opts = ['-q']
  opts << '-P' << @port if @port != DEFAULT_PORT
  opts + mk_custom_opts
end

#mk_scp_arg ⇒ Object 



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# File 'lib/uri/ssh.rb', line 29

def mk_scp_arg
  "#{mk_ssh_arg}:#{@path.gsub(/^\//, '')}"
end

#mk_ssh_arg ⇒ Object 



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# File 'lib/uri/ssh.rb', line 33

def mk_ssh_arg
  result = ''
  result << @user << '@' if @user
  result + @host
end

#save ⇒ Object 



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# File 'lib/uri/ssh.rb', line 44

def save
  checkout.first.save
end