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[PATCH 11/13] for_each_reflog(): don't abort for bad references

From
Michael Haggerty <mhagger@alum.mit.edu>
Date
May 30, 2016, 07:55 UTC
Message-ID
<6228ed402dbdf9f937cb504aff6bbf8849771c54.1464537050.git.mhagger@alum.mit.edu>
In-Reply-To
<cover.1464537050.git.mhagger@alum.mit.edu>

If there is a file under "$GIT_DIR/logs" with no corresponding reference, the old code was emitting an error message, aborting the reflog iteration, and returning -1. But

* None of the callers was checking the exit value
* The callers all want to find all legitimate reflogs (sometimes for the
  purpose of determining object reachability!) and wouldn't benefit from
  a truncated iteration anyway.

So instead, emit an error message and skip the "broken" reflog, but continue with the iteration.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 refs/files-backend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/refs/files-backend.c b/refs/files-backend.c
index c48a006..a7cc0e2 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -3325,7 +3325,7 @@ static int do_for_each_reflog(struct strbuf *name, each_ref_fn fn, void *cb_data
 				struct object_id oid;
 
 				if (read_ref_full(name->buf, 0, oid.hash, NULL))
-					retval = error("bad ref for %s", name->buf);
+					error("bad ref for %s", name->buf);
 				else
 					retval = fn(name->buf, &oid, 0, cb_data);
 			}
-- 
2.8.1
Previous: Michael HaggertyNext: Michael Haggerty
Message 23 of 27 in “Reference iterators”
  1. 00/13 Reference iteratorsMichael Haggerty, May 30, 2016
  2. 01/13 refs: remove unnecessary "extern" keywordsMichael Haggerty, May 30, 2016
  3. 02/13 do_for_each_ref(): move docstring to the header fileMichael Haggerty, May 30, 2016
  4. 03/13 refs: use name "prefix" consistentlyMichael Haggerty, May 30, 2016
  5. 04/13 delete_refs(): add a flags argumentMichael Haggerty, May 30, 2016
  6. 05/13 remote rm: handle symbolic refs correctlyMichael Haggerty, May 30, 2016
  7. 06/13 get_ref_cache(): only create an instance if there is a submoduleMichael Haggerty, May 30, 2016
  8. 07/13 entry_resolves_to_object(): rename function from ref_resolves_to_object()Michael Haggerty, May 30, 2016
  9. 08/13 ref_resolves_to_object(): new functionMichael Haggerty, May 30, 2016
  10. 09/13 refs: introduce an iterator interfaceMichael Haggerty, May 30, 2016
  11. Ramsay JonesMay 30, 2016
  12. Ramsay JonesMay 30, 2016
  13. Michael HaggertyMay 31, 2016
  14. Eric SunshineMay 31, 2016
  15. Michael HaggertyMay 31, 2016
  16. Eric SunshineMay 31, 2016
  17. Michael HaggertyJun 3, 2016
  18. Junio C HamanoMay 31, 2016
  19. Michael HaggertyMay 31, 2016
  20. Duy NguyenJun 2, 2016
  21. Michael HaggertyJun 2, 2016
  22. 10/13 do_for_each_ref(): reimplement using reference iterationMichael Haggerty, May 30, 2016
  23. 11/13 for_each_reflog(): don't abort for bad referencesMichael Haggerty, May 30, 2016
  24. 12/13 dir_iterator: new API for iterating over a directory treeMichael Haggerty, May 30, 2016
  25. David TurnerJun 1, 2016
  26. Michael HaggertyJun 3, 2016
  27. 13/13 for_each_reflog(): reimplement using iteratorsMichael Haggerty, May 30, 2016

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