Enable closing pr during re-downloading

Author: desmondwong1215

app/commands/download.py

@@ -24,6 +24,7 @@
 from app.utils.git import add_all, commit, empty_commit, init
 from app.utils.github_cli import (
     clone_with_custom_name,
+    close_pr,
     delete_repo,
     fork,
     get_username,
@@ -49,6 +50,11 @@ def _download_exercise(
 
         if os.path.isdir(exercise):
             warn(f"You already have {exercise}, removing it to download again")
+            old_config = ExerciseConfig.read(Path(exercise), 0)
+            if old_config.exercise_repo.repo_type == "remote" and old_config.exercise_repo.create_fork:
+                pr_repo_full_name = old_config.exercise_repo.pr_repo_full_name
+                if pr_repo_full_name:
+                    close_pr(pr_repo_full_name)
             rmtree(exercise)
 
         os.makedirs(exercise)