Added the 'show commit config diff' output available from the IOSXR d…

…evice (ansible#54875)

lib/ansible/module_utils/network/iosxr/iosxr.py

@@ -471,6 +471,11 @@ def load_config(module, command_filter, commit=False, replace=False,
             response = conn.edit_config(candidate=command_filter, commit=commit, admin=admin, replace=replace, comment=comment, label=label)
             if module._diff:
                 diff = response.get('diff')
+
+            # Overwrite the default diff by the IOS XR commit diff.
+            # See plugins/cliconf/iosxr.py for this key set: show_commit_config_diff
+            diff = response.get('show_commit_config_diff')
+
         except ConnectionError as exc:
             module.fail_json(msg=to_text(exc, errors='surrogate_then_replace'))
 

lib/ansible/plugins/cliconf/iosxr.py

@@ -116,6 +116,11 @@ def edit_config(self, candidate=None, commit=True, admin=False, replace=None, co
             results.append(self.send_command(**line))
             requests.append(cmd)
 
+        # Before any commit happend, we can get a real configuration
+        # diff from the device and make it available by the iosxr_config module.
+        # This information can be usefull either in check mode or normal mode.
+        resp['show_commit_config_diff'] = self.get('show commit changes diff')
+
         if commit:
             self.commit(comment=comment, label=label, replace=replace)
         else: