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Re: [ANNOUNCE] Git v2.9.1

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Jul 12, 2016, 11:25 UTC
Message-ID
<alpine.DEB.2.20.1607121257450.6426@virtualbox>
In-Reply-To
<20160712073912.GA26431@sigill.intra.peff.net>
Hi Peff,
On Tue, 12 Jul 2016, Jeff King wrote:
Show 6 quoted lines
> On Tue, Jul 12, 2016 at 09:30:28AM +0200, Johannes Schindelin wrote:
> 
> > FWIW I have this monster patch as a starting point (I plan to work more on
> > this today):
> 
> Cool! Thanks for working on this.

Well, I had to. Git for Windows v2.9.1 needs to get released, and I won't do that with a failing test suite.

Show 6 quoted lines
> I suspect we should still do something about skipping those tests,
> though, if only because the v2.9.x maint track is broken, and switching
> to time_t is a sufficiently large change that we probably don't want it
> for maint (it _seems_ like it shouldn't cause any problems, but I'm
> wondering if we might inadvertently trigger funny issues around
> signedness or something).

I totally agree that this patch is very, very large. And yeah, this change is intrusive enough that it should not hit maint (but then, IMO neither should the change that triggered this test failure have hit maint).

So I think I'll go with this for the moment (as we all know, my patch series often go through a couple of commenting rounds, and are not always picked up quickly, and I do not wait that long with Git for Windows v2.9.1):

-- snipsnap -- [PATCH] Work around test failures due to timestamps being unsigned long

Git's source code refers to timestamps as unsigned longs. On 32-bit platforms, as well as on Windows, unsigned long is not large enough to capture dates that are "absurdly far in the future".

While we will fix this issue properly by replacing unsigned long -> time_t, on the maint track we want to be a bit more conservative and just skip those tests.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 t/t0006-date.sh | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/t/t0006-date.sh b/t/t0006-date.sh
index 04ce535..d185640 100755
--- a/t/t0006-date.sh
+++ b/t/t0006-date.sh
@@ -48,10 +48,17 @@ check_show default "$TIME" 'Wed Jun 15 16:13:20 2016 +0200'
 check_show raw "$TIME" '1466000000 +0200'
 check_show iso-local "$TIME" '2016-06-15 14:13:20 +0000'
 
-# arbitrary time absurdly far in the future
-FUTURE="5758122296 -0400"
-check_show iso       "$FUTURE" "2152-06-19 18:24:56 -0400"
-check_show iso-local "$FUTURE" "2152-06-19 22:24:56 +0000"
+case "$(test-date show:iso 9999999999)" in
+*2038*)
+	# on this platform, unsigned long is 32-bit, i.e. not large enough
+	;;
+*)
+	# arbitrary time absurdly far in the future
+	FUTURE="5758122296 -0400"
+	check_show iso       "$FUTURE" "2152-06-19 18:24:56 -0400"
+	check_show iso-local "$FUTURE" "2152-06-19 22:24:56 +0000"
+	;;
+esac
 
 check_parse() {
 	echo "$1 -> $2" >expect
-- 
2.9.0.278.g1caae67
Previous: Jeff KingNext: Jeff King
Message 13 of 56 in “[ANNOUNCE] Git v2.9.1”
  1. Junio C HamanoJul 11, 2016
  2. Andreas SchwabJul 11, 2016
  3. Jeff KingJul 11, 2016
  4. Anders KaseorgJul 12, 2016
  5. Jeff KingJul 12, 2016
  6. Eric WongJul 12, 2016
  7. Jeff KingJul 12, 2016
  8. Junio C HamanoJul 12, 2016
  9. Jeff KingJul 12, 2016
  10. Junio C HamanoJul 12, 2016
  11. Johannes SchindelinJul 12, 2016
  12. Jeff KingJul 12, 2016
  13. Johannes SchindelinJul 12, 2016
  14. Jeff KingJul 12, 2016
  15. Johannes SchindelinJul 13, 2016
  16. Junio C HamanoJul 13, 2016
  17. Johannes SchindelinJul 13, 2016
  18. Junio C HamanoJul 13, 2016
  19. Johannes SchindelinJul 14, 2016
  20. Junio C HamanoJul 12, 2016
  21. Junio C HamanoJul 13, 2016
  22. Jeff KingJul 13, 2016
  23. Junio C HamanoJul 13, 2016
  24. Johannes SchindelinJul 13, 2016
  25. Junio C HamanoJul 13, 2016
  26. Johannes SchindelinJul 14, 2016
  27. Andreas SchwabJul 14, 2016
  28. Jeff KingJul 14, 2016
  29. Johannes SchindelinJul 14, 2016
  30. Andreas SchwabJul 12, 2016
  31. Johannes SchindelinJul 12, 2016
  32. Andreas SchwabJul 12, 2016
  33. Johannes SchindelinJul 12, 2016
  34. Andreas SchwabJul 12, 2016
  35. Jeff KingJul 12, 2016
  36. Duy NguyenJul 12, 2016
  37. Johannes SchindelinJul 13, 2016
  38. Johannes SchindelinJul 13, 2016
  39. Junio C HamanoJul 12, 2016
  40. Jeff KingJul 12, 2016
  41. Junio C HamanoJul 12, 2016
  42. Jeff KingJul 12, 2016
  43. Junio C HamanoJul 12, 2016
  44. Jeff KingJul 12, 2016
  45. Junio C HamanoJul 12, 2016
  46. Johannes SchindelinJul 13, 2016
  47. Junio C HamanoJul 13, 2016
  48. Johannes SchindelinJul 13, 2016
  49. Andreas SchwabJul 12, 2016
  50. Junio C HamanoJul 13, 2016
  51. Lars SchneiderJul 14, 2016
  52. Duy NguyenJul 16, 2016
  53. 32-bit Travis, was Re: [ANNOUNCE] Git v2.9.1Johannes Schindelin, Jul 14, 2016
  54. Mike HommeyJul 14, 2016
  55. Johannes SchindelinJul 14, 2016
  56. Mike HommeyJul 15, 2016

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