mercurial/transaction.py

--- a/mercurial/transaction.py	Wed Jan 25 15:33:39 2023 +0100
+++ b/mercurial/transaction.py	Wed Sep 13 12:25:51 2023 +0200
@@ -59,6 +59,11 @@
 ]
 
 
+def has_abandoned_transaction(repo):
+    """Return True if the repo has an abandoned transaction"""
+    return os.path.exists(repo.sjoin(b"journal"))
+
+
 def cleanup_undo_files(report, vfsmap, undo_prefix=b'undo'):
     """remove "undo" files used by the rollback logic