lib/phase/util/shell.rb in phase-0.0.17 vs lib/phase/util/shell.rb in phase-1.0.0.rc1

@@ -2,13 +2,20 @@
   module Util
     module Shell
       include Console
 
       def shell(*args)
+        options = args.extract_options!
+        options.reverse_merge({
+          allow_failure: false
+        })
+
         log "running: #{args.join(' ')}"
-        status = !!system(*args)
-        yield $? unless status
-        return status
+        succeeded = !!system(*args) || options[:allow_failure]
+
+        yield $? unless succeeded
+
+        succeeded
       end
 
     end
   end
 end