Merge branch 'ps/fetch-atomic' into ps/fetch-mirror-optim

* ps/fetch-atomic:
  fetch: make `--atomic` flag cover pruning of refs
  fetch: make `--atomic` flag cover backfilling of tags
  refs: add interface to iterate over queued transactional updates
  fetch: report errors when backfilling tags fails
  fetch: control lifecycle of FETCH_HEAD in a single place
  fetch: backfill tags before setting upstream
  fetch: increase test coverage of fetches

1 files changed, 14 insertions, 0 deletions

diff --git a/refs.h b/refs.h
index ff859d5951..1ae12c410a 100644
--- a/refs.h
+++ b/refs.h
@@ -777,6 +777,20 @@ int initial_ref_transaction_commit(struct ref_transaction *transaction,
 				   struct strbuf *err);
 
 /*
+ * Execute the given callback function for each of the reference updates which
+ * have been queued in the given transaction. `old_oid` and `new_oid` may be
+ * `NULL` pointers depending on whether the update has these object IDs set or
+ * not.
+ */
+typedef void ref_transaction_for_each_queued_update_fn(const char *refname,
+						       const struct object_id *old_oid,
+						       const struct object_id *new_oid,
+						       void *cb_data);
+void ref_transaction_for_each_queued_update(struct ref_transaction *transaction,
+					    ref_transaction_for_each_queued_update_fn cb,
+					    void *cb_data);
+
+/*
  * Free `*transaction` and all associated data.
  */
 void ref_transaction_free(struct ref_transaction *transaction);