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Re: [PATCH 14/14] pull --rebase: error on no merge candidate cases

From
Stefan Beller <sbeller@google.com>
Date
May 22, 2015, 17:12 UTC
Message-ID
<CAGZ79kad1aunDXkg8K3HQrOkG31-FJ51k04O=S1mk_JLbpsjKw@mail.gmail.com>
In-Reply-To
<632335d05ab160ea935c920249f62970@www.dscho.org>

On Fri, May 22, 2015 at 7:14 AM, Johannes Schindelin <johannes.schindelin@gmx.de> wrote:

Show 30 quoted lines
> Hi Paul,
>
> On 2015-05-22 15:48, Paul Tan wrote:
>> On Wed, May 20, 2015 at 12:27 AM, Junio C Hamano <gitster@pobox.com> wrote:
>>> Johannes Schindelin <johannes.schindelin@gmx.de> writes:
>>>
>>>>>> -               fprintf(stderr,
>>>>>> -                       _("There are no candidates for merging among the refs that you just fetched.\n"
>>>>>> -                       "Generally this means that you provided a wildcard refspec which had no\n"
>>>>>> -                       "matches on the remote end.\n"));
>>>>>> +               if (opt_rebase)
>>>>>> +                       fputs(_("There is no candidate for rebasing against among the refs that you just fetched."), stderr);
>>>>>
>>>>     The puts() function appends a <newline> while fputs() does not.
>>>
>>> Yup, so this update makes the command spew unterminated lines, which
>>> not something intended...
>>
>> Ugh >< Will put the "\n" back.
>>
>> And yes, I used fputs() because it seems wasteful to use fprintf()
>> which will scan the string looking for any '%' formatting units, when
>> we know there aren't.
>>
>> I will also update 05/14 to use fputs() as well where appropriate.
>
> I believe the common thinking is that consistency beats speed in error messages, so it would be easier to read and maintain the code if all of those error messages were just using `fprintf(stderr, ...);`. It's not as if we spit out hundreds of thousands of error messages per second where that `%s` parsing would hurt ;-)
>
> Ciao,
> Dscho

As soon as we spit out one error message, the speed game is over anyway. (IO is slow, and I believe in the error case correctness is the most critical thing to get right, so no need to pay attention to performance). Though I don't mind having a fputs/fprintf mixture. I just happened to work on parts of code without any fputs before, that's why I brought up this discussion.

Actually I think I'd prefer fputs when there is no %.
Previous: Johannes SchindelinNext: Junio C Hamano
Message 39 of 43 in “Make git-pull a builtin”
  1. 00/14 Make git-pull a builtinPaul Tan, May 18, 2015
  2. 01/14 pull: implement fetch + mergePaul Tan, May 18, 2015
  3. Johannes SchindelinMay 18, 2015
  4. 02/14 pull: pass verbosity, --progress flags to fetch and mergePaul Tan, May 18, 2015
  5. Johannes SchindelinMay 18, 2015
  6. Paul TanMay 21, 2015
  7. Johannes SchindelinMay 21, 2015
  8. Paul TanMay 22, 2015
  9. 03/14 pull: pass git-merge's options to git-mergePaul Tan, May 18, 2015
  10. 04/14 pull: pass git-fetch's options to git-fetchPaul Tan, May 18, 2015
  11. 05/14 pull: error on no merge candidatesPaul Tan, May 18, 2015
  12. Johannes SchindelinMay 18, 2015
  13. 06/14 pull: support pull.ff configPaul Tan, May 18, 2015
  14. Johannes SchindelinMay 18, 2015
  15. Paul TanMay 21, 2015
  16. 07/14 pull: check if in unresolved merge statePaul Tan, May 18, 2015
  17. Johannes SchindelinMay 18, 2015
  18. 08/14 pull: fast-forward working tree if head is updatedPaul Tan, May 18, 2015
  19. Johannes SchindelinMay 18, 2015
  20. 09/14 pull: implement pulling into an unborn branchPaul Tan, May 18, 2015
  21. 10/14 pull: set reflog messagePaul Tan, May 18, 2015
  22. Johannes SchindelinMay 18, 2015
  23. Junio C HamanoMay 18, 2015
  24. Paul TanMay 21, 2015
  25. 11/14 pull: teach git pull about --rebasePaul Tan, May 18, 2015
  26. Stefan BellerMay 18, 2015
  27. Johannes SchindelinMay 19, 2015
  28. Paul TanMay 31, 2015
  29. Paul TanJun 2, 2015
  30. 12/14 pull: configure --rebase via branch.<name>.rebase or pull.rebasePaul Tan, May 18, 2015
  31. Stefan BellerMay 18, 2015
  32. 13/14 pull --rebase: exit early when the working directory is dirtyPaul Tan, May 18, 2015
  33. 14/14 pull --rebase: error on no merge candidate casesPaul Tan, May 18, 2015
  34. Stefan BellerMay 19, 2015
  35. Johannes SchindelinMay 19, 2015
  36. Junio C HamanoMay 19, 2015
  37. Paul TanMay 22, 2015
  38. Johannes SchindelinMay 22, 2015
  39. Stefan BellerMay 22, 2015
  40. Junio C HamanoMay 18, 2015
  41. Paul TanMay 30, 2015
  42. Paul TanMay 30, 2015
  43. Johannes SchindelinMay 18, 2015

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