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From: Junio C Hamano <gitster@pobox.com>
To: Jeff King <peff@peff.net>
Cc: git@vger.kernel.org, Johannes Schindelin <johannes.schindelin@gmx.de>
Subject: Re: [PATCH] t3404: fix use of "VAR=VAL cmd" with a shell function
Date: Thu, 12 Jul 2018 13:22:55 -0700	[thread overview]
Message-ID: <xmqq4lh4w6e8.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20180712201454.GA6281@sigill.intra.peff.net> (Jeff King's message of "Thu, 12 Jul 2018 16:14:54 -0400")

Jeff King <peff@peff.net> writes:

> On Thu, Jul 12, 2018 at 01:07:51PM -0700, Junio C Hamano wrote:
>
>> Bash may take it happily but running test with dash reveals a breakage.
>> 
>> This was not discovered for a long time as no tests after this test
>> depended on GIT_AUTHOR_NAME to be reverted correctly back to the
>> original value after this step is done.
>> 
>> Signed-off-by: Junio C Hamano <gitster@pobox.com>
>> ---
>> 
>>  * We could enclose the setting and exporting inside a subshell and
>>    do without the oGIT_AUTHOR_NAME temporary variable, but that
>>    would interfere with the timestamp increments done by
>>    test_commit, so I think doing it this way may be preferrable.
>
> Yeah, I agree that setting/unsetting is probably more sane for this
> case. Though...
>
>> diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
>> index 7e9f375a24..fd43443ff5 100755
>> --- a/t/t3404-rebase-interactive.sh
>> +++ b/t/t3404-rebase-interactive.sh
>> @@ -280,8 +280,11 @@ test_expect_success 'retain authorship w/ conflicts' '
>>  	git reset --hard twerp &&
>>  	test_commit a conflict a conflict-a &&
>>  	git reset --hard twerp &&
>> -	GIT_AUTHOR_NAME=AttributeMe \
>> +	oGIT_AUTHOR_NAME=$GIT_AUTHOR_NAME &&
>> +	GIT_AUTHOR_NAME=AttributeMe &&
>> +	export GIT_AUTHOR_NAME &&
>>  	test_commit b conflict b conflict-b &&
>> +	GIT_AUTHOR_NAME=$oGIT_AUTHOR_NAME &&
>
> ...would you want to use test_when_finished here (both for robustness,
> but also to make it more clear to a reader what's going on)?

Perhaps.

I wish our test-lint caught "VAR=VAL shellfunc", but it is rather
hard to do so, I would imagine.



  reply	other threads:[~2018-07-12 20:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-12 20:07 [PATCH] t3404: fix use of "VAR=VAL cmd" with a shell function Junio C Hamano
2018-07-12 20:14 ` Jeff King
2018-07-12 20:22   ` Junio C Hamano [this message]
2018-07-12 20:31     ` Junio C Hamano
2018-07-12 23:51       ` Jeff King
2018-07-13  5:55         ` Eric Sunshine

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