feat: raise exception on unsupported language for joj

.pre-commit-config.yaml

@@ -30,6 +30,6 @@ repos:
       - id: isort
         args: ["--profile", "black", "--filter-files"]
   - repo: https://github.com/psf/black
-    rev: 19.3b0
+    rev: 22.3.0
     hooks:
       - id: black

joint_teapot/workers/git.py

@@ -7,7 +7,7 @@ from joint_teapot.utils.logger import logger
 
 current_path = sys.path[0]
 sys.path.remove(current_path)
-from git import Repo
+from git import Repo  # type: ignore
 from git.exc import GitCommandError
 
 sys.path.insert(0, current_path)

joint_teapot/workers/joj.py

@@ -16,6 +16,8 @@ class JOJ:
         self.submitter = JOJSubmitter(sid, logger)
 
     def submit_dir(self, problem_url: str, path: str, lang: str) -> Tuple[int, str]:
+        if lang not in list(Language):
+            raise Exception(f"unsupported language '{lang}' for JOJ")
         exclude_paths = [".git"]
         zip_buffer = io.BytesIO()
         zip_buffer.name = f"{os.path.basename(path)}.zip"