fix: removing HTTP error checking. (taskcluster#831)

The taskcluster package will return a TaskclusterRestFailure instead of an HTTP error so it can be deprecated

Author: abhishekmadan30

src/taskgraph/actions/cancel.py

@@ -5,8 +5,6 @@
 
 import logging
 
-import requests
-
 from taskcluster import TaskclusterRestFailure
 from taskgraph.util.taskcluster import cancel_task
 
@@ -28,14 +26,8 @@ def cancel_action(parameters, graph_config, input, task_group_id, task_id):
     # only cancel tasks with the level-specific schedulerId.
     try:
         cancel_task(task_id)
-    except (requests.HTTPError, TaskclusterRestFailure) as e:
-        status_code = None
-        if isinstance(e, requests.HTTPError):
-            status_code = e.response.status_code if e.response else None
-        elif isinstance(e, TaskclusterRestFailure):
-            status_code = e.status_code
-
-        if status_code == 409:
+    except TaskclusterRestFailure as e:
+        if e.status_code == 409:
             # A 409 response indicates that this task is past its deadline.  It
             # cannot be cancelled at this time, but it's also not running
             # anymore, so we can ignore this error.

src/taskgraph/actions/cancel_all.py

@@ -7,8 +7,6 @@
 import os
 from concurrent import futures
 
-import requests
-
 from taskcluster import TaskclusterRestFailure
 from taskgraph.util.taskcluster import (
     CONCURRENCY,
@@ -37,14 +35,8 @@ def do_cancel_task(task_id):
         logger.info(f"Cancelling task {task_id}")
         try:
             cancel_task(task_id)
-        except (requests.HTTPError, TaskclusterRestFailure) as e:
-            status_code = None
-            if isinstance(e, requests.HTTPError):
-                status_code = e.response.status_code if e.response else None
-            elif isinstance(e, TaskclusterRestFailure):
-                status_code = e.status_code
-
-            if status_code == 409:
+        except TaskclusterRestFailure as e:
+            if e.status_code == 409:
                 # A 409 response indicates that this task is past its deadline.  It
                 # cannot be cancelled at this time, but it's also not running
                 # anymore, so we can ignore this error.

src/taskgraph/util/taskcluster.py

@@ -467,15 +467,11 @@ def get_ancestors(task_ids: Union[list[str], str]) -> dict[str, str]:
     for task_id in task_ids:
         try:
             task_def = get_task_definition(task_id)
-        except (requests.HTTPError, taskcluster.TaskclusterRestFailure) as e:
+        except taskcluster.TaskclusterRestFailure as e:
             # Task has most likely expired, which means it's no longer a
             # dependency for the purposes of this function.
-            if isinstance(e, requests.HTTPError):
-                if e.response and e.response.status_code == 404:
-                    continue
-            elif isinstance(e, taskcluster.TaskclusterRestFailure):
-                if e.status_code == 404:
-                    continue
+            if e.status_code == 404:
+                continue
             raise e
 
         dependencies = task_def.get("dependencies", [])