🔊 Improves exception logging

Makes sure stacktrace is being properly displayed on exception

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## [Unreleased]
   - Fixes entrypoint assertion error ([dfm](https://github.com/dfm)), refs #5
+  - Fixes parallel mode ([johanneswilm](https://github.com/johanneswilm)), refs #8
+  - Improves exception logging
 
 ## [v20200413]
   - Made `github-token` parameter optional

src/entrypoint.py

@@ -19,7 +19,8 @@ class ExitCode(Enum):
 
 
 def set_failed(message):
-    log.error(message)
+    exc_info = message if isinstance(message, Exception) else None
+    log.error(message, exc_info=exc_info)
     sys.exit(ExitCode.FAILURE)
 
 
@@ -57,9 +58,9 @@ def run_coveralls(repo_token, parallel=False, flag_name=False, base_path=False):
                 break
             except CoverallsException as e:
                 log.warning(
-                    f"Failed submitting coverage with service_name: {service_name}"
+                    f"Failed submitting coverage with service_name: {service_name}",
+                    exc_info=e,
                 )
-                log.warning(e)
     if result is None:
         set_failed("Failed to submit coverage")
     log.debug(result)

tests/test_entrypoint.py

@@ -121,8 +121,10 @@ def test_run_coveralls_wear_error_once(self):
                 "Patching os.environ with: "
                 "{'COVERALLS_REPO_TOKEN': 'TOKEN', 'COVERALLS_PARALLEL': ''}"
             ),
-            mock.call.warning("Failed submitting coverage with service_name: github"),
-            mock.call.warning(side_effect[0]),
+            mock.call.warning(
+                "Failed submitting coverage with service_name: github",
+                exc_info=side_effect[0],
+            ),
             mock.call.info(
                 "Trying submitting coverage with service_name: github-actions..."
             ),