add aliases for target and backend

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>

bin/vulcano

@@ -45,9 +45,9 @@ class VulcanoCLI < Thor
   desc "exec PATHS", "run all test files"
   option :id, type: :string,
     desc: 'Attach a profile ID to all test results'
-  option :target, type: :string, default: nil,
+  option :target, aliases: :t, type: :string, default: nil,
     desc: 'Simple targeting option using URIs, e.g. ssh://user:pass@host:port'
-  option :backend, type: :string, default: nil,
+  option :backend, aliases: :b, type: :string, default: nil,
     desc: 'Choose a backend: exec (run locally), ssh, winrm.'
   option :host, type: :string,
     desc: 'Specify a remote host which is tested.'

lib/vulcano/backend.rb

@@ -7,14 +7,19 @@ module Vulcano
       @registry ||= {}
     end
 
-    def self.target_config( conf )
+    def self.target_config( config )
+      conf = config.dup
+
       return conf if conf[:target].to_s.empty?
+
       uri = URI::parse(conf[:target].to_s)
       conf[:backend]  = conf[:backend]  || uri.scheme
       conf[:host]     = conf[:host]     || uri.host
       conf[:port]     = conf[:port]     || uri.port
       conf[:user]     = conf[:user]     || uri.user
       conf[:password] = conf[:password] || uri.password
+
+      # return the updated config
       conf
     end
   end

lib/vulcano/backend/specinfra.rb

@@ -9,7 +9,12 @@ module Vulcano::Backends
       @conf = conf
       @files = {}
       type = @conf[:backend]
+
       configure_shared_options
+
+      # configure the given backend, if we can handle it
+      # e.g. backend = exec   ==>  try to call configure_exec
+      # if we don't support it, error out
       m = "configure_#{type}"
       if self.respond_to?(m.to_sym)
         self.send(m)

lib/vulcano/runner.rb

@@ -21,7 +21,7 @@ module Vulcano
     def initialize(profile_id, conf)
       @rules = []
       @profile_id = profile_id
-      @conf = Vulcano::Backend.target_config(conf).dup
+      @conf = Vulcano::Backend.target_config(conf)
       configure_output
       configure_backend
     end