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[PATCH v2 13/25] ref_transaction_commit(): check for valid `transaction->state`

From
Michael Haggerty <mhagger@alum.mit.edu>
Date
May 22, 2017, 14:17 UTC
Message-ID
<5705444f57e334c451f3badd710ee7672b2488a1.1495460199.git.mhagger@alum.mit.edu>
In-Reply-To
<cover.1495460199.git.mhagger@alum.mit.edu>

Move the check that `transaction->state` is valid from `files_transaction_commit()` to `ref_transaction_commit()`, where other future reference backends can benefit from it as well.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs.c               | 12 ++++++++++++
 refs/files-backend.c |  3 ---
 2 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/refs.c b/refs.c
index 989462c972..f8f41ffb04 100644
--- a/refs.c
+++ b/refs.c
@@ -1694,6 +1694,18 @@ int ref_transaction_commit(struct ref_transaction *transaction,
 {
 	struct ref_store *refs = transaction->ref_store;
 
+	switch (transaction->state) {
+	case REF_TRANSACTION_OPEN:
+		/* Good. */
+		break;
+	case REF_TRANSACTION_CLOSED:
+		die("BUG: prepare called on a closed reference transaction");
+		break;
+	default:
+		die("BUG: unexpected reference transaction state");
+		break;
+	}
+
 	if (getenv(GIT_QUARANTINE_ENVIRONMENT)) {
 		strbuf_addstr(err,
 			      _("ref updates forbidden inside quarantine environment"));
diff --git a/refs/files-backend.c b/refs/files-backend.c
index 2c70de5209..a4261d4683 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -2874,9 +2874,6 @@ static int files_transaction_commit(struct ref_store *ref_store,
 
 	assert(err);
 
-	if (transaction->state != REF_TRANSACTION_OPEN)
-		die("BUG: commit called for transaction that is not open");
-
 	if (!transaction->nr)
 		goto cleanup;
 

-- 
2.11.0
Previous: Michael HaggertyNext: Michael Haggerty
Message 28 of 31 in “Prepare to separate out a packed_ref_store”
  1. 00/25 Prepare to separate out a packed_ref_storeMichael Haggerty, May 22, 2017
  2. 01/25 t3600: clean up permissions test properlyMichael Haggerty, May 22, 2017
  3. 02/25 refs.h: clarify docstring for the ref_transaction_update()-related fnsMichael Haggerty, May 22, 2017
  4. 03/25 ref_iterator_begin_fn(): fix docstringMichael Haggerty, May 22, 2017
  5. 04/25 files-backend: use `die("BUG: ...")`, not `die("internal error: ...")`Michael Haggerty, May 22, 2017
  6. 05/25 prefix_ref_iterator: don't trim too muchMichael Haggerty, May 22, 2017
  7. 06/25 refs_ref_iterator_begin(): don't check prefixes redundantlyMichael Haggerty, May 22, 2017
  8. 07/25 refs: use `size_t` indexes when iterating over ref transaction updatesMichael Haggerty, May 22, 2017
  9. 08/25 ref_store: take a `msg` parameter when deleting referencesMichael Haggerty, May 22, 2017
  10. 10/25 files-backend: move `lock` member to `files_ref_store`Michael Haggerty, May 22, 2017
  11. 12/25 files_transaction_cleanup(): new helper functionMichael Haggerty, May 22, 2017
  12. 11/25 files_ref_store: put the packed files lock directly in this structMichael Haggerty, May 22, 2017
  13. 09/25 lockfile: add a new method, is_lock_file_locked()Michael Haggerty, May 22, 2017
  14. 14/25 ref_transaction_prepare(): new optional step for reference updatesMichael Haggerty, May 22, 2017
  15. 16/25 ref_update_reject_duplicates(): use `size_t` rather than `int`Michael Haggerty, May 22, 2017
  16. 15/25 ref_update_reject_duplicates(): expose function to whole refs moduleMichael Haggerty, May 22, 2017
  17. 17/25 ref_update_reject_duplicates(): add a sanity checkMichael Haggerty, May 22, 2017
  18. 19/25 get_packed_ref_cache(): assume "packed-refs" won't change while lockedMichael Haggerty, May 22, 2017
  19. 20/25 read_packed_refs(): do more of the work of reading packed refsMichael Haggerty, May 22, 2017
  20. 22/25 refs_ref_iterator_begin(): handle `GIT_REF_PARANOIA`Michael Haggerty, May 22, 2017
  21. 23/25 create_ref_entry(): remove `check_name` optionMichael Haggerty, May 22, 2017
  22. 24/25 ref-filter: limit traversal to prefixMichael Haggerty, May 22, 2017
  23. 25/25 cache_ref_iterator_begin(): avoid priming unneeded directoriesMichael Haggerty, May 22, 2017
  24. Jeff KingMay 23, 2017
  25. Michael HaggertyMay 24, 2017
  26. Junio C HamanoMay 24, 2017
  27. 21/25 read_packed_refs(): report unexpected fopen() failuresMichael Haggerty, May 22, 2017
  28. 13/25 ref_transaction_commit(): check for valid `transaction->state`Michael Haggerty, May 22, 2017
  29. 18/25 should_pack_ref(): new function, extracted from `files_pack_refs()`Michael Haggerty, May 22, 2017
  30. Stefan BellerMay 22, 2017
  31. Junio C HamanoMay 24, 2017

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