Implement MR.pipelines()

Closes #555

2 files changed, 26 insertions, 0 deletions

diff --git a/docs/gl_objects/mrs.rst b/docs/gl_objects/mrs.rst
index 02b2e02..7fdf4d8 100644
--- a/docs/gl_objects/mrs.rst
+++ b/docs/gl_objects/mrs.rst
@@ -116,6 +116,14 @@ List commits of a MR::
 
     commits = mr.commits()
 
+List the changes of a MR::
+
+    changes = mr.changes()
+
+List the pipelines for a MR::
+
+    pipelines = mr.pipelines()
+
 List issues that will close on merge::
 
     mr.closes_issues()
diff --git a/gitlab/v4/objects.py b/gitlab/v4/objects.py
index 7f50440..71dd90c 100644
--- a/gitlab/v4/objects.py
+++ b/gitlab/v4/objects.py
@@ -2157,6 +2157,24 @@ class ProjectMergeRequest(SubscribableMixin, TodoMixin, TimeTrackingMixin,
         path = '%s/%s/changes' % (self.manager.path, self.get_id())
         return self.manager.gitlab.http_get(path, **kwargs)
 
+    @cli.register_custom_action('ProjectMergeRequest')
+    @exc.on_http_error(exc.GitlabListError)
+    def pipelines(self, **kwargs):
+        """List the merge request pipelines.
+
+        Args:
+            **kwargs: Extra options to send to the server (e.g. sudo)
+
+        Raises:
+            GitlabAuthenticationError: If authentication is not correct
+            GitlabListError: If the list could not be retrieved
+
+        Returns:
+            RESTObjectList: List of changes
+        """
+        path = '%s/%s/pipelines' % (self.manager.path, self.get_id())
+        return self.manager.gitlab.http_get(path, **kwargs)
+
     @cli.register_custom_action('ProjectMergeRequest', tuple(),
                                 ('merge_commit_message',
                                  'should_remove_source_branch',