frontend: Redisplay failure messages in result summary

It's more convenient than having to search back through all the output
to find out what the cause of failure was.

1 files changed, 12 insertions, 1 deletions

diff --git a/buildstream/_frontend/widget.py b/buildstream/_frontend/widget.py
index f7af4c614..ed53d135d 100644
--- a/buildstream/_frontend/widget.py
+++ b/buildstream/_frontend/widget.py
@@ -589,8 +589,19 @@ class LogLine(Widget):
         if scheduler.queues is None:
             return
 
-        text = self.content_profile.fmt("Pipeline Summary\n", bold=True)
+        text = ''
+
+        if self._failure_messages:
+            text += self.content_profile.fmt("Failure Summary\n", bold=True)
+            values = OrderedDict()
+
+            for element, messages in sorted(self._failure_messages.items(), key=lambda x: x[0].name):
+                values[element.name] = ''.join(self._render(v) for v in messages)
+            text += self.format_values(values, style_value=False)
+
+        text += self.content_profile.fmt("Pipeline Summary\n", bold=True)
         values = OrderedDict()
+
         values['Total'] = self.content_profile.fmt(str(pipeline.total_elements))
         values['Session'] = self.content_profile.fmt(str(pipeline.session_elements))