Port detection logic and new conf options

* new port detection logic, allowing multiple people test *from* the same host
* clean up of ssh tunnels code
* configurable chef-zero path
* configurable user + sudo support

between-meals/repo/git.rb

@@ -192,11 +192,11 @@ def parse_status(changes)
             fail 'No match'
           end
         end.flatten.map do |x|
-            {
-              :status => x[:status],
-              :path => x[:path].sub("#{@repo_path}/", '')
-            }
-          end
+          {
+            :status => x[:status],
+            :path => x[:path].sub("#{@repo_path}/", '')
+          }
+        end
         # rubocop:enable MultilineBlockChain
       end
     end

between-meals/util.rb

@@ -1,6 +1,8 @@
 # vim: syntax=ruby:expandtab:shiftwidth=2:softtabstop=2:tabstop=2
 
 require 'colorize'
+require 'socket'
+require 'timeout'
 
 module BetweenMeals
   # A set of simple utility functions used throughout BetweenMeals
@@ -51,5 +53,22 @@ def execute(command)
       end
       return c
     end
+
+    def port_open?(port)
+      begin
+        Timeout.timeout(1) do
+          begin
+            s = TCPSocket.new('localhost', port)
+            s.close
+            return true
+          rescue Errno::ECONNREFUSED, Errno::EHOSTUNREACH
+            return false
+          end
+        end
+      rescue Timeout::Error
+        return false
+      end
+      return false
+    end
   end
 end

spec/spec_helper.rb

@@ -1,5 +1,7 @@
 # vim: syntax=ruby:expandtab:shiftwidth=2:softtabstop=2:tabstop=2
 
+require 'logger'
+
 module TasteTester
   # Null logger
   module Logging
@@ -11,7 +13,3 @@ def self.logger
     end
   end
 end
-
-require_relative '../taste-tester/util'
-require_relative '../taste-tester/config'
-require_relative '../taste-tester/taste-tester'