Update pre-commit repositories

.pre-commit-config.yaml

@@ -4,11 +4,11 @@ repos:
     hooks:
       - id: seed-isort-config
   - repo: https://github.com/timothycrosley/isort
-    rev: 5.7.0
+    rev: 5.8.0
     hooks:
       - id: isort
   - repo: https://github.com/ambv/black
-    rev: stable
+    rev: 20.8b1
     hooks:
       - id: black
   - repo: https://github.com/pre-commit/mirrors-prettier
@@ -17,7 +17,7 @@ repos:
       - id: prettier
         exclude: ^tests/fixtures/
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.4
+    rev: 3.9.0
     hooks:
       - id: flake8
         additional_dependencies:
@@ -60,7 +60,7 @@ repos:
     hooks:
       - id: yesqa
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.790
+    rev: v0.812
     hooks:
       - id: mypy
         name: mypy-bugbug

http_service/bugbug_http/app.py

@@ -303,7 +303,7 @@ def get_result(job: JobInfo) -> Optional[Any]:
     result = redis_conn.get(job.result_key)
 
     if result:
-        LOGGER.debug(f"Found {result}")
+        LOGGER.debug(f"Found {result!r}")
         try:
             result = dctx.decompress(result)
         except zstandard.ZstdError:
@@ -312,6 +312,7 @@ def get_result(job: JobInfo) -> Optional[Any]:
             # since 47114f4f47db6b73214cf946377be8da945d34b5.
             pass
 
+        assert result is not None  # mypy thinks it could be None
         return orjson.loads(result)
 
     return None