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Re: [PATCH v4 01/10] Prepare log/log-tree to reuse the diffopt.close_file attribute

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Jun 26, 2016, 06:56 UTC
Message-ID
<alpine.DEB.2.20.1606260853030.12947@virtualbox>
In-Reply-To
<xmqq60syfgqf.fsf@gitster.mtv.corp.google.com>
Hi Junio,
On Fri, 24 Jun 2016, Junio C Hamano wrote:
Show 23 quoted lines
> Johannes Schindelin <johannes.schindelin@gmx.de> writes:
> 
> > diff --git a/builtin/log.c b/builtin/log.c
> > index 099f4f7..27bc88d 100644
> > --- a/builtin/log.c
> > +++ b/builtin/log.c
> > @@ -243,9 +243,10 @@ static struct itimerval early_output_timer;
> >  
> >  static void log_show_early(struct rev_info *revs, struct commit_list *list)
> >  {
> > -	int i = revs->early_output;
> > +	int i = revs->early_output, close_file = revs->diffopt.close_file;
> 
> Probably not worth a reroll, but I find this kind of thing easier to
> read as two separate definitions.
> 
> >  	int show_header = 1;
> 
> And this was separate from "int i = ...;" for the same reason.  It
> is OK to write "int i, j, k;" but "show_header" is something that
> keeps track of the more important state during the control flow and
> it is easier to read if we make it stand out.  close_file falls into
> the same category, I would think.

Makes sense. I changed it locally, in case this patch series needs a re-roll.

Show 6 quoted lines
> >  		case commit_error:
> > +			if (close_file)
> > +				fclose(revs->diffopt.file);
> 
> I wondered if we want to also clear, i.e. revs->diffopt.file = NULL, 
> but I do not think .close_file does that either, so this is good.

Indeed, the current code in diff_flush() just fclose()s the stream, but does not reset the "file" field:

	https://github.com/git/git/blob/v2.9.0/diff.c#L4715-L4716

Ciao, Dscho

Previous: Junio C HamanoNext: Johannes Schindelin
Message 65 of 67 in “Let log-tree and friends respect diffopt's `file` field”
  1. 0/5 Let log-tree and friends respect diffopt's `file` fieldJohannes Schindelin, Jun 18, 2016
  2. 1/5 log-tree: respect diffopt's configured output file streamJohannes Schindelin, Jun 18, 2016
  3. 3/5 graph: respect the diffopt.file settingJohannes Schindelin, Jun 18, 2016
  4. 4/5 shortlog: support outputting to streams other than stdoutJohannes Schindelin, Jun 18, 2016
  5. 5/5 format-patch: avoid freopen()Johannes Schindelin, Jun 18, 2016
  6. Eric SunshineJun 19, 2016
  7. Johannes SchindelinJun 20, 2016
  8. Eric SunshineJun 20, 2016
  9. Johannes SchindelinJun 20, 2016
  10. Junio C HamanoJun 20, 2016
  11. Johannes SchindelinJun 21, 2016
  12. Junio C HamanoJun 21, 2016
  13. Johannes SchindelinJun 22, 2016
  14. Junio C HamanoJun 22, 2016
  15. Johannes SchindelinJun 22, 2016
  16. Junio C HamanoJun 22, 2016
  17. Junio C HamanoJun 22, 2016
  18. 2/5 line-log: respect diffopt's configured output file streamJohannes Schindelin, Jun 18, 2016
  19. 0/7 Let log-tree and friends respect diffopt's `file` fieldJohannes Schindelin, Jun 20, 2016
  20. 2/7 line-log: respect diffopt's configured output file streamJohannes Schindelin, Jun 20, 2016
  21. 1/7 log-tree: respect diffopt's configured output file streamJohannes Schindelin, Jun 20, 2016
  22. Junio C HamanoJun 20, 2016
  23. Johannes SchindelinJun 21, 2016
  24. Johannes SchindelinJun 21, 2016
  25. Johannes SchindelinJun 21, 2016
  26. 3/7 graph: respect the diffopt.file settingJohannes Schindelin, Jun 20, 2016
  27. 6/7 format-patch: avoid freopen()Johannes Schindelin, Jun 20, 2016
  28. 5/7 format-patch: explicitly switch off color when writing to filesJohannes Schindelin, Jun 20, 2016
  29. 4/7 shortlog: support outputting to streams other than stdoutJohannes Schindelin, Jun 20, 2016
  30. 7/7 format-patch: use stdout directlyJohannes Schindelin, Jun 20, 2016
  31. Junio C HamanoJun 20, 2016
  32. Johannes SchindelinJun 20, 2016
  33. 0/9 Let log-tree and friends respect diffopt's `file` fieldJohannes Schindelin, Jun 21, 2016
  34. 8/9 format-patch: avoid freopen()Johannes Schindelin, Jun 21, 2016
  35. 7/9 format-patch: explicitly switch off color when writing to filesJohannes Schindelin, Jun 21, 2016
  36. 9/9 format-patch: use stdout directlyJohannes Schindelin, Jun 21, 2016
  37. 2/9 Disallow diffopt.close_file when using the log_tree machineryJohannes Schindelin, Jun 21, 2016
  38. Junio C HamanoJun 21, 2016
  39. Junio C HamanoJun 21, 2016
  40. Junio C HamanoJun 21, 2016
  41. Johannes SchindelinJun 22, 2016
  42. 4/9 line-log: respect diffopt's configured output file streamJohannes Schindelin, Jun 21, 2016
  43. 3/9 log-tree: respect diffopt's configured output file streamJohannes Schindelin, Jun 21, 2016
  44. 1/9 am: stop ignoring errors reported by log_tree_diff()Johannes Schindelin, Jun 21, 2016
  45. Junio C HamanoJun 21, 2016
  46. Johannes SchindelinJun 22, 2016
  47. 6/9 shortlog: support outputting to streams other than stdoutJohannes Schindelin, Jun 21, 2016
  48. 5/9 graph: respect the diffopt.file settingJohannes Schindelin, Jun 21, 2016
  49. Paul TanJun 21, 2016
  50. Johannes SchindelinJun 21, 2016
  51. Paul TanJun 22, 2016
  52. 00/10 Let log-tree and friends respect diffopt's `file` fieldJohannes Schindelin, Jun 22, 2016
  53. 09/10 shortlog: respect the --output=<file> settingJohannes Schindelin, Jun 22, 2016
  54. 10/10 Ensure that log respects --output=<file>Johannes Schindelin, Jun 22, 2016
  55. 07/10 format-patch: avoid freopen()Johannes Schindelin, Jun 22, 2016
  56. 08/10 format-patch: use stdout directlyJohannes Schindelin, Jun 22, 2016
  57. Junio C HamanoJun 24, 2016
  58. 05/10 shortlog: support outputting to streams other than stdoutJohannes Schindelin, Jun 22, 2016
  59. 02/10 log-tree: respect diffopt's configured output file streamJohannes Schindelin, Jun 22, 2016
  60. 06/10 format-patch: explicitly switch off color when writing to filesJohannes Schindelin, Jun 22, 2016
  61. Junio C HamanoJun 24, 2016
  62. Johannes SchindelinJun 26, 2016
  63. 01/10 Prepare log/log-tree to reuse the diffopt.close_file attributeJohannes Schindelin, Jun 22, 2016
  64. Junio C HamanoJun 24, 2016
  65. Johannes SchindelinJun 26, 2016
  66. 04/10 graph: respect the diffopt.file settingJohannes Schindelin, Jun 22, 2016
  67. 03/10 line-log: respect diffopt's configured output file streamJohannes Schindelin, Jun 22, 2016

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