Fixed KeyboardInterrupt management

gcp

@@ -300,16 +300,21 @@ class GCP():
         @param source_fd: file descriptor of the file to copy
         @param condition: condition which launched the callback (glib.IO_IN)
         @param data: tuple with (destination file descriptor, copying options)"""
+        try:
             dest_fd,options = data
 
             try:
                 buff = source_fd.read(self.buffer_size)
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
             except:
                 self.__copyFailed("can't read source", source_fd, dest_fd)
                 return False
 
             try:
                 dest_fd.write(buff)
+            except KeyboardInterrupt:
+                raise KeyboardInterrupt
             except:
                 self.__copyFailed("can't write to dest", source_fd, dest_fd)
                 return False
@@ -325,6 +330,8 @@ class GCP():
                 self.journal.closeFile()
                 return False
             return True
+        except KeyboardInterrupt:
+            self._userInterruption()
 
     def __filename_fix(self, filename, options, no_journal=False):
         """Fix filenames incompatibilities/mistake according to options
@@ -481,13 +488,17 @@ class GCP():
                 self.__launched = True
         return (True,'')
 
+    def _userInterruption(self):
+        info(_("User interruption: good bye"))
+        exit(1)
+
     def go(self):
         """Launch main loop"""
         self.loop = gobject.MainLoop()
         try:
             self.loop.run()
         except KeyboardInterrupt:
-            info(_("User interruption: good bye"))
+            self._userInterruption()
 
 
 if __name__ == "__main__":