output.rb in minitar-0.6.1

- old
+ new

@@ -18,13 +18,18 @@
     #    Archive::Tar::Minitar::Output.open(io) -> output
     #    Archive::Tar::Minitar::Output.open(io) { |output| block } -> obj
     def self.open(output)
       stream = new(output)
       return stream unless block_given?
-      yield stream
-    ensure
-      stream.close
+
+      # This exception context must remain, otherwise the stream closes on open
+      # even if a block is not given.
+      begin
+        yield stream
+      ensure
+        stream.close
+      end
     end
 
     # Output.tar is a wrapper for Output.open that yields the owned tar object
     # instead of the Output object. If a block is not provided, an enumerator
     # will be created with the same behaviour.
@@ -57,9 +62,14 @@
       @tar = Archive::Tar::Minitar::Writer.new(@io)
     end
 
     # Returns the Writer object for direct access.
     attr_reader :tar
+
+    # Returns false if the wrapped data stream is open.
+    def closed?
+      @io.closed?
+    end
 
     # Closes the Writer object and the wrapped data stream.
     def close
       @tar.close
       @io.close