lib/percheron/commands/abstract.rb in percheron-0.6.4 vs lib/percheron/commands/abstract.rb in percheron-0.7.0

@@ -1,34 +1,46 @@
 module Percheron
   module Commands
     class Abstract < Clamp::Command
 
-      DEFAULT_CONFIG_FILE = '.percheron.yml'
+      option([ '-c', '--config_file' ], 'CONFIG', 'Config file',
+             default: Config::DEFAULT_CONFIG_FILE)
 
-      option [ '-c', '--config_file' ], 'CONFIG', 'Configuration file', default: DEFAULT_CONFIG_FILE
-
-      option '--version', :flag, 'show version' do
+      option('--version', :flag, 'show version') do
         puts Percheron::VERSION
         exit(0)
       end
 
       def self.default_parameters!
-        parameter('STACK_NAME', 'stack name', required: false)
-        parameter('CONTAINER_NAMES', 'container names', required: false, default: []) do |container_names|
+        parameter('STACK_NAME', 'stack name', required: true)
+        parameter('CONTAINER_NAMES', 'container names', default: [],
+                                                        required: false) do |container_names|
           container_names.split(/,/)
         end
       end
 
+      def self.default_create_parameters!
+        default_parameters!
+        option('--start', :flag, 'Start container', default: false)
+      end
+
+      def execute
+        stack.valid?
+      rescue => e
+        signal_usage_error(e.message)
+      end
+
       def stack
+        return NullStack.new if stack_name.nil?
         Percheron::Stack.new(config, stack_name)
       end
 
       def default_config_file
-        ENV.fetch('PERCHERON_CONFIG', DEFAULT_CONFIG_FILE)
+        ENV.fetch('PERCHERON_CONFIG', Config::DEFAULT_CONFIG_FILE)
       end
 
       def config
-        @config ||= Percheron::Config.new(config_file)
+        @config ||= Percheron::Config.load!(config_file)
       rescue Errors::ConfigFileInvalid => e
         $logger.error e.message
         exit(1)
       end
     end