[Dev-luatex] Change in log indentation for luatex 1.21 (texlive 2025 pretest)

[David Carlisle]

On Wed, 12 Feb 2025 at 20:55, luigi scarso <luigi.scarso at gmail.com> wrote:

>
>
> On Wed, 12 Feb 2025 at 20:27, David Carlisle <d.p.carlisle at gmail.com>
> wrote:
>
>> The new luatex shows differences in the way it indents and abbreviates
>> log error lines.
>>
>> This is "only" logging but breaks several tests in the latex test suite
>> which is essentially a regression test based around diff-ing normalised
>> logs.
>>
>> If the change is intentional we can update the reference results (and
>> maintainers of other packages using l3build tests will have to do similar)
>> but if this change might be reverted we will hold off updating the test
>> suite.
>>
>> Attached is a small test file and the tl2024 and tl2025 log.
>>
>> The diff is
>>
>> $ diff 24.log 25.log
>> 1c1
>> < This is LuaTeX, Version 1.18.0 (TeX Live 2024)  (format=luatex
>> 2025.1.30)  12 FEB 2025 19:16
>> ---
>> > This is LuaTeX, Version 1.21.0 (TeX Live 2025)  (format=luatex
>> 2025.2.12)  12 FEB 2025 19:16
>> 7c7
>> <                         x}
>> ---
>> >                           x}
>> 10c10
>> < l.5 ...elax\relax\relax\relax\relax\relax\show\relax
>> ---
>> > l.5 ...ax\relax\relax\relax\relax\relax\show\relax
>>
>>
> I think it's related to
>
> I think it's related to
> [luatex] A bug in show_context second line indentation
> from last December 30th, I thought the logs were ok
> having not seen any replies.
> *The fix seems to be consistent with the web source of pdftex;*
>

Ah Luigi, sorry you are right.
The change showed up in the regression test because we had saved
luatex results which changed.

However you are correct that the new texlive 2025 log is consistent with
pdftex log
so the change looks good and we will have to update the test suite to match
the corrected behaviour.

Sorry for the noise.




> I can revert, but then I have to fix the bug again after the TL release.
>

It seems like no revert is necessary.



>
>
> --
> luigi
>

David
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