Updated general exceptions with specific ones (#3339)

Fixes #3337

bugbug/model.py

@@ -193,7 +193,7 @@ def get_human_readable_feature_names(self):
             elif type_ == "text":
                 feature_name = f"Combined text contains '{feature_name}'"
             elif type_ not in ("data", "couple_data"):
-                raise Exception(f"Unexpected feature type for: {full_feature_name}")
+                raise ValueError(f"Unexpected feature type for: {full_feature_name}")
 
             cleaned_feature_names.append(feature_name)
 

bugbug/models/testselect.py

@@ -82,7 +82,7 @@ def _get_cost(config: str) -> int:
         if all(s in config for s in substrings):
             return cost
 
-    raise Exception(f"Couldn't find cost for {config}")
+    raise ValueError(f"Couldn't find cost for {config}")
 
 
 def _generate_equivalence_sets(

bugbug/repository.py

@@ -1536,7 +1536,7 @@ def trigger_pull() -> None:
             raise
 
         if p.returncode != 0:
-            raise Exception(
+            raise RuntimeError(
                 f"Error {p.returncode} when pulling {revision} from {branch}"
             )
 

bugbug/rust_code_analysis_server.py

@@ -35,7 +35,7 @@ def __init__(self, thread_num: Optional[int] = None):
                     time.sleep(0.35)
 
         self.terminate()
-        raise Exception("Unable to run rust-code-analysis server")
+        raise RuntimeError("Unable to run rust-code-analysis server")
 
     @property
     def base_url(self):
@@ -50,7 +50,7 @@ def start_process(self, thread_num: Optional[int] = None):
                 cmd += ["-j", str(thread_num)]
             self.proc = subprocess.Popen(cmd)
         except FileNotFoundError:
-            raise Exception("rust-code-analysis is required for code analysis")
+            raise RuntimeError("rust-code-analysis is required for code analysis")
 
     def terminate(self):
         if self.proc is not None:

bugbug/test_scheduling.py

@@ -118,6 +118,12 @@
 )
 
 
+class UnexpectedGranularityError(ValueError):
+    def __init__(self, granularity):
+        message = f"Unexpected {granularity} granularity"
+        super().__init__(message)
+
+
 def filter_runnables(
     runnables: tuple[Runnable, ...], all_runnables: Set[Runnable], granularity: str
 ) -> tuple[Any, ...]:
@@ -185,7 +191,7 @@ def rename_runnables(
             for config, group in config_groups
         )
     else:
-        raise Exception(f"Unexpected {granularity} granularity")
+        raise UnexpectedGranularityError(granularity)
 
 
 def get_push_data(
@@ -298,7 +304,7 @@ def get_test_scheduling_history(granularity):
     elif granularity == "config_group":
         test_scheduling_db = TEST_CONFIG_GROUP_SCHEDULING_DB
     else:
-        raise Exception(f"{granularity} granularity unsupported")
+        raise UnexpectedGranularityError(granularity)
 
     for obj in db.read(test_scheduling_db):
         yield obj["revs"], obj["data"]
@@ -312,7 +318,7 @@ def get_past_failures(granularity, readonly):
     elif granularity == "config_group":
         past_failures_db = os.path.join("data", PAST_FAILURES_CONFIG_GROUP_DB)
     else:
-        raise Exception(f"{granularity} granularity unsupported")
+        raise UnexpectedGranularityError(granularity)
 
     return shelve.Shelf(
         LMDBDict(past_failures_db[: -len(".tar.zst")], readonly=readonly),
@@ -327,7 +333,7 @@ def get_failing_together_db_path(granularity: str) -> str:
     elif granularity == "config_group":
         path = FAILING_TOGETHER_CONFIG_GROUP_DB
     else:
-        raise Exception(f"{granularity} granularity unsupported")
+        raise UnexpectedGranularityError(granularity)
 
     return os.path.join("data", path[: -len(".tar.zst")])
 

http_service/tests/test_integration.py

@@ -32,7 +32,10 @@ def integration_test_single():
     response_json = response.json()
 
     if not response.ok:
-        raise Exception(f"Couldn't get an answer in {timeout} seconds: {response_json}")
+        raise requests.HTTPError(
+            f"Couldn't get an answer in {timeout} seconds: {response_json}",
+            response=response,
+        )
 
     logger.info("Response for bug 1376406 %s", response_json)
     assert response_json["class"] is not None
@@ -56,7 +59,10 @@ def integration_test_batch():
     response_json = response.json()
 
     if not response.ok:
-        raise Exception(f"Couldn't get an answer in {timeout} seconds: {response_json}")
+        raise requests.HTTPError(
+            f"Couldn't get an answer in {timeout} seconds: {response_json}",
+            response=response,
+        )
 
     response_1376544 = response_json["bugs"]["1376544"]
     logger.info("Response for bug 1376544 %s", response_1376544)

infra/version_check.py

@@ -18,7 +18,7 @@
     print(e.stdout)
     print("stderr:")
     print(e.stderr)
-    raise Exception("Failure while getting latest tag")
+    raise RuntimeError("Failure while getting latest tag")
 
 cur_tag = p.stdout.decode("utf-8")[1:].rstrip()
 

scripts/commit_classifier.py

@@ -331,7 +331,7 @@ def load_user(phid):
                 # TODO: Support group reviewers somehow.
                 logger.info("Skipping group reviewer %s", phid)
             else:
-                raise Exception(f"Unsupported reviewer {phid}")
+                raise ValueError(f"Unsupported reviewer {phid}")
 
         for patch in needed_stack:
             revision = revisions[patch.phid]