Add extra debugging info on git failure

Fetching from git sometimes fails. Log the IP in these cases
so we can investigate the git.o.o logs

Change-Id: I09994cf0706670c44412f5d6da97c67329b40d1b

tests/test_shell_task.py

@@ -188,7 +188,7 @@ class TestTaskRunner(base.TestWithGearman):
         task_output_lines = task_output_file.readlines()
         self.assertIn("Step 1: Setup environment", task_output_lines[0])
         self.assertIn("Something failed running the job!",
-                      task_output_lines[5])
+                      task_output_lines[6])
         self.assertIn("Exception: check results failed!",
                       task_output_lines[len(task_output_lines) - 1])
 

turbo_hipster/lib/models.py

@@ -289,6 +289,7 @@ class ShellTask(Task):
             self.job_results_dir,
             'shell_output.log'
         )
+        self.log.info('Working on node %s' % (os.uname()[1]))
 
     @common.task_step
     def _grab_patchset(self, job_args):
@@ -322,6 +323,8 @@ class ShellTask(Task):
             if tries >= 3:
                 break
         if return_code != 0:
+            cmd = 'ifconfig'
+            utils.execute_to_log(cmd, self.git_prep_log)
             raise Exception("Failed to fetch patchset")
         self.git_path = local_path
         return local_path