lib/github_snapshot/utilities.rb in github_snapshot-0.1.1 vs lib/github_snapshot/utilities.rb in github_snapshot-0.1.2

@@ -1,12 +1,25 @@
 module Utilities
+  Error     = Class.new(RuntimeError)
+  ExecError = Class.new(Error)
+
   module_function
 
   def exec(cmd, logger)
     out, err, status = Open3.capture3 cmd
     if err.empty?
       logger.debug out unless out.empty?
     else
-      logger.error(err + " command was: #{cmd}")
+      logger.error "Open3 error:\n#{'='*79}\n#{err}Command was:\n#{cmd}\n#{'='*79}\n"
+      raise Utilities::ExecError
     end
   end
+
+  def tar(file, logger)
+    if File.exists? file
+      Utilities.exec "tar zcf #{file}.tar.gz #{file}", logger
+    else
+      logger.error "Unable to tar #{file}"
+    end
+  end
+
 end