Pretty print json output

Adding kwarg indent in json.dumps() to pretty print the trace
output in json format.

Change-Id: Icea772bd18e366ad576de7dbc2afc11b2fb376b9

2 files changed, 5 insertions, 3 deletions

diff --git a/osprofiler/cmd/commands.py b/osprofiler/cmd/commands.py
index 99be83e..876493b 100644
--- a/osprofiler/cmd/commands.py
+++ b/osprofiler/cmd/commands.py
@@ -76,7 +76,8 @@ class TraceCommands(BaseCommand):
                 return obj
 
         if args.use_json:
-            output = json.dumps(trace, default=datetime_json_serialize)
+            output = json.dumps(trace, default=datetime_json_serialize,
+                                indent=2)
         elif args.use_html:
             with open(os.path.join(os.path.dirname(__file__),
                                    "template.html")) as html_template:
diff --git a/osprofiler/tests/cmd/test_shell.py b/osprofiler/tests/cmd/test_shell.py
index fa79c27..fc573ed 100644
--- a/osprofiler/tests/cmd/test_shell.py
+++ b/osprofiler/tests/cmd/test_shell.py
@@ -174,7 +174,7 @@ class ShellTestCase(test.TestCase):
         mock_get.return_value = notifications
 
         self.run_command("trace show fake_id --json")
-        self.assertEqual("%s\n" % json.dumps(notifications),
+        self.assertEqual("%s\n" % json.dumps(notifications, indent=2),
                          sys.stdout.getvalue())
 
     @mock.patch("sys.stdout", six.StringIO())
@@ -222,4 +222,5 @@ class ShellTestCase(test.TestCase):
             self.run_command("trace show fake_id --json --out='/file'")
 
             output = mock_open.return_value.__enter__.return_value
-            output.write.assert_called_once_with(json.dumps(notifications))
+            output.write.assert_called_once_with(json.dumps(notifications,
+                                                            indent=2))