Subject: Re: [PATCH] object-file: avoid ODB transaction when not writing objects

From: Junio C Hamano <[email-masked]>
Date: Tue, 07 Apr 2026 14:43:00 -0700

Jeff King <[email-masked]> writes:

>> diff --git a/t/t1517-outside-repo.sh b/t/t1517-outside-repo.sh
>> index c824c1a25c..c1dbc6359a 100755
>> --- a/t/t1517-outside-repo.sh
>> +++ b/t/t1517-outside-repo.sh
>> @@ -93,6 +93,14 @@ test_expect_success 'diff outside repository' '
>>  	test_cmp expect actual
>>  '
>>  
>> +test_expect_success 'diff files exceeding bigFileThreshold outside repository' '
>> +	cd non-repo &&
>> +	echo foo >foo &&
>> +	echo bar >bar &&
>> +	test_must_fail git -c core.bigFileThreshold=1 diff -- foo bar >actual &&
>> +	test_grep "diff --git a/foo b/bar" actual
>> +'
>
> This does a "cd" outside of a sub-shell, which affects all of the
> subsequent tests.
>
> We also are already using the "nongit" wrapper in this script, so it
> could be used here.

Yup, the non-repo being somehow outside any repository is also used
in the test immediately above this one, so I am inclined to say that
we can just enclose the whole thing inside a subshell.

> Thought it was found originally with diff, the bug can also be
> demonstrated with just hash-object, which does make the test a little
> simpler.

Yeah, that is true, too.