added basic scp support

lib/fog/compute/models/aws/server.rb

@@ -186,6 +186,14 @@ module Fog
           Fog::SSH.new(ip_address, username, options).run(commands)
         end
 
+        def scp(local_path, remote_path)
+          requires :ip_address, :username
+
+          options = {}
+          options[:key_data] = [private_key] if private_key
+          Fog::SCP.new(ip_address, username, options).upload(local_path, remote_path)
+        end
+
         def start
           requires :id
           connection.start_instances(id)

lib/fog/core.rb

@@ -27,5 +27,6 @@ require 'fog/core/mock'
 require 'fog/core/provider'
 require 'fog/core/service'
 require 'fog/core/ssh'
+require 'fog/core/scp'
 require 'fog/core/time'
 require 'fog/core/wait_for'

lib/fog/core/scp.rb

@@ -0,0 +1,67 @@
+module Fog
+  module SCP
+
+    def self.new(address, username, options = {})
+      if Fog.mocking?
+        Fog::SCP::Mock.new(address, username, options)
+      else
+        Fog::SCP::Real.new(address, username, options)
+      end
+    end
+
+    def self.reset_data(keys=Mock.data.keys)
+      Mock.reset_data(keys)
+    end
+
+    class Mock
+
+      def self.data
+        @data ||= Hash.new do |hash, key|
+          hash[key] = {}
+        end
+      end
+
+      def initialize(address, username, options)
+        @address  = address
+        @username = username
+        @options  = options
+      end
+
+      def run(commands)
+        Fog::Mock.not_implemented
+      end
+
+    end
+
+    class Real
+
+      def initialize(address, username, options)
+        require 'net/scp'
+
+        key_manager = Net::SSH::Authentication::KeyManager.new(nil, options)
+
+        unless options[:key_data] || options[:keys] || options[:password] || key_manager.agent
+          raise ArgumentError.new(':key_data, :keys, :password or a loaded ssh-agent is required to initialize SSH')
+        end
+
+        @address  = address
+        @username = username
+        @options  = { :paranoid => false }.merge(options)
+      end
+
+      def upload(local_path, remote_path)
+        begin
+          Net::SCP.start(@address, @username, @options) do |scp|
+            scp.upload!(local_path, remote_path) do |ch, name, sent, total|
+              # TODO: handle progress display?
+            end
+          end
+        rescue Exception => error
+          raise error
+        end
+      end
+
+    end
+
+  end
+end