src: lava_callback: handle artifacts uploaded from test jobs

Test jobs might need to upload artifacts directly from LAVA (this is
needed e.g. for GCOV data when checking for code coverage), but we
currently have no way to add those artifacts to the corresponding node.

Add such a feature in a rather generic way, so jobs can provide both the
artifact name and its URL through a specially-formatted result entry:

  artifact-upload:<artifact name>:<artifact URL>

Therefore, all test results starting with `artifact-upload:` will be
processed and stored in the corresponding node's `artifacts` dict, with
`<artifact name>` being the entry key and `<artifact URL>` being its
value.

Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>

Author: a-wai

src/lava_callback.py

@@ -234,6 +234,16 @@ def async_job_submit(api_helper, node_id, job_callback):
         job_node['error_msg'] = None
     if device_id:
         job_node['data']['device'] = device_id
+    # add artifacts uploaded from the running LAVA job
+    upload_result = results.pop('upload', {})
+    for (name, state) in upload_result.items():
+        if name.startswith("artifact-upload:") and state == 'pass':
+            artifact = name.split(':', 2)
+            if len(artifact) != 3:
+                logger.warn(f"Failed to extract artifact name and URL from {result}")
+                continue
+            job_node['artifacts'][artifact[1]] = artifact[2]
+            logger.info(f"Artifact {artifact[1]} added with URL {artifact[2]}")
     hierarchy = job_callback.get_hierarchy(results, job_node)
     api_helper.submit_results(hierarchy, job_node)