Refactored main.py into function files

pkgmgr/get_repo_identifier.py

@@ -0,0 +1,12 @@
+def get_repo_identifier(repo, all_repos):
+    """
+    Return a unique identifier for the repository.
+    If the repository name is unique among all_repos, return repository name;
+    otherwise, return 'provider/account/repository'.
+    """
+    repo_name = repo.get("repository")
+    count = sum(1 for r in all_repos if r.get("repository") == repo_name)
+    if count == 1:
+        return repo_name
+    else:
+        return f'{repo.get("provider")}/{repo.get("account")}/{repo.get("repository")}'