Re: [PATCH v8 6/6] refs: add GIT_REFERENCE_BACKEND to specify reference backend

From: Toon Claes <toon@iotcl.com>
Date: Feb 25, 2026, 08:50 UTC
Message-ID: <874in5nr5p.fsf@iotcl.com>
In-Reply-To: <20260223-kn-alternate-ref-dir-v8-6-0509c132a203@gmail.com>

Karthik Nayak <karthik.188@gmail.com> writes:

Show 72 quoted lines

> diff --git a/t/t1423-ref-backend.sh b/t/t1423-ref-backend.sh
> index 9912433b8c..1a7b8eadba 100755
> --- a/t/t1423-ref-backend.sh
> +++ b/t/t1423-ref-backend.sh
> @@ -138,22 +189,92 @@ do
>  				git refs migrate --dry-run --ref-format=$to_format >out &&
>  				BACKEND_PATH="$dir/$(sed "s/.* ${SQ}.git\/\(.*\)${SQ}/\1/" out)" &&
>  
> -				git config set core.repositoryformatversion 1 &&
> -				git config set extensions.refStorage "$to_format://$BACKEND_PATH" &&
> -
> -				git worktree add ../wt 2
> -			) &&
> +				run_with_uri . "$from_format" "$to_format://$BACKEND_PATH" \
> +					"worktree add ../wt 2" "$method" &&
>  
> -			git -C repo for-each-ref --include-root-refs >expect &&
> -			git -C wt for-each-ref --include-root-refs >expect &&
> -			! test_cmp expect actual &&
> +				run_with_uri . "$from_format" "$to_format://$BACKEND_PATH" \
> +					"for-each-ref --include-root-refs" "$method" >actual &&
> +				run_with_uri ../wt "$from_format" "$to_format://$BACKEND_PATH" \
> +					"for-each-ref --include-root-refs" "$method" >expect &&
> +				! test_cmp expect actual &&
>  
> -			git -C wt rev-parse 2 >expect &&
> -			git -C wt rev-parse HEAD >actual &&
> -			test_cmp expect actual
> +				run_with_uri . "$from_format" "$to_format://$BACKEND_PATH" \
> +					"rev-parse 2" "$method" >actual &&
> +				run_with_uri ../wt "$from_format" "$to_format://$BACKEND_PATH" \
> +					"rev-parse HEAD" "$method" >expect &&
> +				test_cmp expect actual
> +			)
>  		'
>  	done # closes dir
> +
> +	test_expect_success "migrating repository to $to_format with alternate refs directory" '
> +		test_when_finished "rm -rf repo refdir" &&
> +		mkdir refdir &&
> +		GIT_REFERENCE_BACKEND="${from_format}://$(pwd)/refdir" git init repo &&
> +		(
> +			cd repo &&
> +
> +			test_commit 1 &&
> +			test_commit 2 &&
> +			test_commit 3 &&
> +
> +			git refs migrate --ref-format=$to_format &&
> +			git refs list >out &&
> +			test_grep "refs/tags/1"	out &&
> +			test_grep "refs/tags/2"	out &&
> +			test_grep "refs/tags/3"	out
> +		)
> +	'
> +
>  done # closes to_format
>  done # closes from_format
>  
> +done # closes method
> +
> +test_expect_success 'initializing repository with alt ref directory' '
> +	test_when_finished "rm -rf repo refdir" &&
> +	mkdir refdir &&
> +	BACKEND="$(test_detect_ref_format)://$(pwd)/refdir" &&
> +	GIT_REFERENCE_BACKEND=$BACKEND git init repo &&
> +	verify_files_exist repo/.git refdir &&
> +	(
> +		cd repo &&
> +
> +		git config get extensions.refstorage >expect &&
> +		echo $BACKEND >actual &&

Shouldn't these two be swapped, like:

		git config get extensions.refstorage >actual &&
		echo $BACKEND >expect &&

Show 27 quoted lines

> +		test_cmp expect actual &&
> +
> +		test_commit 1 &&
> +		test_commit 2 &&
> +		test_commit 3 &&
> +		git refs list >out &&
> +		test_grep "refs/tags/1"	out &&
> +		test_grep "refs/tags/2"	out &&
> +		test_grep "refs/tags/3"	out
> +	)
> +'
> +
> +test_expect_success 'cloning repository with alt ref directory' '
> +	test_when_finished "rm -rf source repo refdir" &&
> +	mkdir refdir &&
> +
> +	git init source &&
> +	test_commit -C source 1 &&
> +	test_commit -C source 2 &&
> +	test_commit -C source 3 &&
> +
> +	BACKEND="$(test_detect_ref_format)://$(pwd)/refdir" &&
> +	GIT_REFERENCE_BACKEND=$BACKEND git clone source repo &&
> +
> +	git -C repo config get extensions.refstorage >expect &&
> +	echo $BACKEND >actual &&
> +	test_cmp expect actual &&

Same here.

Show 14 quoted lines

> +
> +	verify_files_exist repo/.git refdir &&
> +
> +	git -C source for-each-ref refs/tags/ >expect &&
> +	git -C repo for-each-ref refs/tags/ >actual &&
> +	test_cmp expect actual
> +'
> +
>  test_done
>
> -- 
> 2.53.GIT
>
>

-- 
Cheers,
Toon