added parameter to scp to allow custom client

Author: jens

lib/scp.js

@@ -91,9 +91,11 @@ exports = module.exports = global_client;
 
 exports.Client = Client;
 
-exports.scp = function(src, dest, callback) {
-  var client = new Client();
-  client.on('error', callback);
+exports.scp = function(client, src, dest, callback) {
+  if (!client) {
+    var client = new Client();
+    client.on('error', callback);
+  }
   var parsed = client.parse(src);
   if (parsed.host && parsed.path) {
     cp2local(client, parsed, dest, callback);