Re: [PATCH 1/3] checkout: document bug where delayed checkout counts entries twice

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Matheus Tavares <matheus.bernardino@xxxxxx> writes:

> At the end of a `git checkout <pathspec>` operation, git reports how
> many paths were checked out with a message like "Updated N paths from
> the index". However, entries that end up on the delayed checkout queue
> (as requested by a long-running process filter) get counted twice,
> producing a wrong number in the final report. We will fix this bug in an
> upcoming commit. For now, only document/demonstrate it with a
> test_expect_failure.
>
> Signed-off-by: Matheus Tavares <matheus.bernardino@xxxxxx>
> ---
>  t/t0021-conversion.sh | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>
> diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
> index bad37abad2..00df9b5c18 100755
> --- a/t/t0021-conversion.sh
> +++ b/t/t0021-conversion.sh
> @@ -1132,4 +1132,26 @@ do
>  	'
>  done
>  
> +test_expect_failure PERL 'delayed checkout correctly reports the number of updated entries' '

It is unfortunate that we depend on Perl only to run rot13-filter;
I'll leave a #leftoverbit label here to remind us to write a
"test-tool rot13-filter" someday.  No need to do so in this series.

> +	rm -rf repo &&
> +	git init repo &&
> +	(
> +		cd repo &&
> +		git config filter.delay.process "../rot13-filter.pl delayed.log clean smudge delay" &&
> +		git config filter.delay.required true &&
> +
> +		echo "*.a filter=delay" >.gitattributes &&
> +		echo a >test-delay10.a &&
> +		echo a >test-delay11.a &&
> +		git add . &&
> +		git commit -m files &&
> +
> +		rm *.a &&
> +		git checkout . 2>err &&
> +		grep "IN: smudge test-delay10.a .* \\[DELAYED\\]" delayed.log &&
> +		grep "IN: smudge test-delay11.a .* \\[DELAYED\\]" delayed.log &&
> +		grep "Updated 2 paths from the index" err
> +	)
> +'
> +
>  test_done



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