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Re: [PATCH v6 6/7] git-reflog: add create and exists functions

From
Junio C Hamano <gitster@pobox.com>
Date
Jun 30, 2015, 19:48 UTC
Message-ID
<xmqq3819c6ze.fsf@gitster.dls.corp.google.com>
In-Reply-To
<CAPig+cQ7tQV6uG0sVMsPJX=8V3g+zufRCYcdfDo4ixwwUp5hZA@mail.gmail.com>
Eric Sunshine <sunshine@sunshineco.com> writes:
Show 12 quoted lines
>>> Alternatives would be strbuf_reset() or declaring and releasing the
>>> strbuf within the for-loop scope.
>>
>> Because _reset() just rewinds the .len pointer without deallocating,
>> you would need an extra _release() before it goes out of scope. If
>> it is expected that the strbuf will be reused for a number of times,
>> the length of the string each iteration uses is similar, and you
>> will iterate the loop many times, "_reset() each time and _release()
>> to clean-up" pattern would save many calls to realloc/free.
>
> Yep, that's why I suggested strbuf_reset() as an alternative (and
> likely would have chosen it myself).
OK, then let's do that by squashing this in.
 builtin/reflog.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/builtin/reflog.c b/builtin/reflog.c
index 3080865..e9ba600 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -733,10 +733,11 @@ static int cmd_reflog_create(int argc, const char **argv, const char *prefix)
 		if (safe_create_reflog(argv[i], &err, 1)) {
 			error("could not create reflog %s: %s", argv[i],
 			      err.buf);
+			strbuf_reset(&err);
 			status = 1;
-			strbuf_release(&err);
 		}
 	}
+	strbuf_release(&err);
 	return status;
 }
 
Previous: Eric SunshineNext: David Turner
Message 21 of 31 in “refs backend preamble”
  1. 0/7 refs backend preambleDavid Turner, Jun 29, 2015
  2. 1/7 refs.c: add err arguments to reflog functionsDavid Turner, Jun 29, 2015
  3. Michael HaggertyJul 6, 2015
  4. David TurnerJul 7, 2015
  5. Michael HaggertyJul 8, 2015
  6. Junio C HamanoJul 8, 2015
  7. Michael HaggertyJul 9, 2015
  8. 2/7 cherry-pick: treat CHERRY_PICK_HEAD and REVERT_HEAD as refsDavid Turner, Jun 29, 2015
  9. Michael HaggertyJul 6, 2015
  10. 3/7 bisect: treat BISECT_HEAD as a refDavid Turner, Jun 29, 2015
  11. 4/7 refs: Break out check for reflog autocreationDavid Turner, Jun 29, 2015
  12. 5/7 refs: new public ref function: safe_create_reflogDavid Turner, Jun 29, 2015
  13. Michael HaggertyJul 6, 2015
  14. David TurnerJul 7, 2015
  15. Michael HaggertyJul 8, 2015
  16. 6/7 git-reflog: add create and exists functionsDavid Turner, Jun 29, 2015
  17. Eric SunshineJun 30, 2015
  18. David TurnerJun 30, 2015
  19. Junio C HamanoJun 30, 2015
  20. Eric SunshineJun 30, 2015
  21. Junio C HamanoJun 30, 2015
  22. David TurnerJun 30, 2015
  23. Junio C HamanoJun 30, 2015
  24. Michael HaggertyJul 6, 2015
  25. David TurnerJul 8, 2015
  26. Michael HaggertyJul 8, 2015
  27. David TurnerJul 8, 2015
  28. 7/7 git-stash: use git-reflog instead of creating filesDavid Turner, Jun 29, 2015
  29. Junio C HamanoJun 29, 2015
  30. Junio C HamanoJun 29, 2015
  31. David TurnerJun 29, 2015

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