Re: [PATCH v2] convert: legitimately disable clean/smudge filter with an empty override

[Junio C Hamano <gitster@pobox.com>]

Junio C Hamano <gitster@pobox.com> writes:

> Instead, teach apply_filter() to treat an empty string given as a
> filter means the input must be returned as-is without conversion,
> and the operation must always succeed.

Ugh, that was a non-sentence.  

  Instead, teach apply_filter() to treat an empty string as a no-op
  filter that always returns successfully its input as-is without
  conversion.

was what I meant to say.

> -- >8 --
>
>>  
>>  	if (!dst)
>> diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
>> index 718efa0..7bac2bc 100755
>> --- a/t/t0021-conversion.sh
>> +++ b/t/t0021-conversion.sh
>> @@ -252,4 +252,20 @@ test_expect_success "filter: smudge empty file" '
>>  	test_cmp expected filtered-empty-in-repo
>>  '
>>  
>> +test_expect_success 'disable filter with empty override' '
>> +	test_config_global filter.disable.smudge false &&
>> +	test_config_global filter.disable.clean false &&
>> +	test_config filter.disable.smudge false &&
>> +	test_config filter.disable.clean false &&
>> +
>> +	echo "*.disable filter=disable" >.gitattributes &&
>> +
>> +	echo test >test.disable &&
>> +	git -c filter.disable.clean= add test.disable 2>err &&
>> +	test_must_be_empty err &&
>> +	rm -f test.disable &&
>> +	git -c filter.disable.smudge= checkout -- test.disable 2>err &&
>> +	test_must_be_empty err
>> +'
>> +
>>  test_done