Use net-sftp for downloading results properly

Gemfile

@@ -4,5 +4,6 @@ source 'https://rubygems.org'
 gem 'hashie'
 gem 'colorize'
 gem 'net-ssh'
+gem 'net-sftp'
 gem 'net-scp'
 gem 'pry'

Gemfile.lock

@@ -7,6 +7,8 @@ GEM
     method_source (0.8.2)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
+    net-sftp (2.1.2)
+      net-ssh (>= 2.6.5)
     net-ssh (2.9.1)
     pry (0.10.1)
       coderay (~> 1.1.0)
@@ -21,5 +23,6 @@ DEPENDENCIES
   colorize
   hashie
   net-scp
+  net-sftp
   net-ssh
   pry

baas

@@ -6,6 +6,7 @@ require 'erb'
 require 'hashie'
 require 'net/ssh'
 require 'net/scp'
+require 'net/sftp'
 require 'yaml'
 
 
@@ -59,7 +60,15 @@ module Baas
   def self.download_results_from(name)
     config = configuration.hosts[name]
 
-    `scp #{config.username}@#{config.hostname}:*.{csv,html} ./results/`
+    Net::SFTP.start(config.hostname, config.username, :password => config.password) do |sftp|
+      sftp.dir.foreach('.') do |file|
+        if file.name =~ /\.(csv|html)/
+          print "Downloading #{file.name}..."
+          sftp.download!(file.name, File.join('results', file.name))
+          puts "..done"
+        end
+      end
+    end
   end
 
   def self.run!