Subject: Re: [PATCH v3 2/3] t5702: support for excluding commit objects

From: Ævar Arnfjörð Bjarmason <[email-masked]>
Date: Mon, 26 Jul 2021 17:03:15 +0200

On Mon, Jul 26 2021, Teng Long wrote:

> Signed-off-by: Teng Long <[email-masked]>
> ---
>  t/t5702-protocol-v2.sh | 166 +++++++++++++++++++++++++++++++++--------
>  1 file changed, 133 insertions(+), 33 deletions(-)
>
> diff --git a/t/t5702-protocol-v2.sh b/t/t5702-protocol-v2.sh
> index 2e1243ca40..bcf21e1445 100755
> --- a/t/t5702-protocol-v2.sh
> +++ b/t/t5702-protocol-v2.sh
> @@ -753,7 +753,7 @@ test_expect_success 'ls-remote with v2 http sends only one POST' '
>  '
>  
>  test_expect_success 'push with http:// and a config of v2 does not request v2' '
> -	test_when_finished "rm -f log" &&
> +	test_when_finished "rm -rf \"$HTTPD_DOCUMENT_ROOT_PATH/http_parent\" http_child log" &&
>  	# Till v2 for push is designed, make sure that if a client has
>  	# protocol.version configured to use v2, that the client instead falls
>  	# back and uses v0.
> @@ -776,7 +776,7 @@ test_expect_success 'push with http:// and a config of v2 does not request v2' '
>  '
>  
>  test_expect_success 'when server sends "ready", expect DELIM' '
> -	rm -rf "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" http_child &&
> +	test_when_finished "rm -rf \"$HTTPD_DOCUMENT_ROOT_PATH/http_parent\" http_child" &&
>  
>  	git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
>  	test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one &&
> @@ -796,7 +796,7 @@ test_expect_success 'when server sends "ready", expect DELIM' '
>  '
>  
>  test_expect_success 'when server does not send "ready", expect FLUSH' '
> -	rm -rf "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" http_child log &&
> +	test_when_finished "rm -rf \"$HTTPD_DOCUMENT_ROOT_PATH/http_parent\" http_child log" &&
>  
>  	git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
>  	test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one &&
> @@ -824,17 +824,44 @@ test_expect_success 'when server does not send "ready", expect FLUSH' '
>  '

This looks like a good cleanup, but should be split into another cleanup
commit. It looks unrelated.

>  configure_exclusion () {
> -	git -C "$1" hash-object "$2" >objh &&
> -	git -C "$1" pack-objects "$HTTPD_DOCUMENT_ROOT_PATH/mypack" <objh >packh &&
> -	git -C "$1" config --add \
> -		"uploadpack.blobpackfileuri" \
> -		"$(cat objh) $(cat packh) $HTTPD_URL/dumb/mypack-$(cat packh).pack" &&
> -	cat objh
> +    objt="$1"
> +    P="$2"
> +	version="$3"
> +
> +    oldc="uploadpack.blobpackfileuri"
> +    newc="uploadpack.excludeobject"
> +	configkey=""
> +	if test "$version" = "0"
> +    then
> +    	configkey="$oldc"
> +    else
> +    	configkey="$newc"
> +	fi

You've got all sorts of mixed space/tab indent here.

> +    if test "$objt" = "blob"
> +    then
> +        git -C "$P" hash-object "$3" >objh &&
> +        git -C "$P" pack-objects "$HTTPD_DOCUMENT_ROOT_PATH/mypack" <objh >packh &&
> +        git -C "$P" config --add \
> +                "$configkey" \
> +                "$(cat objh) $(cat packh) $HTTPD_URL/dumb/mypack-$(cat packh).pack" &&
> +        cat objh
> +    elif test "$objt" = "commit" || test "$objt" = "tag"
> +    then
> +        echo "$3" >objh
> +		git -C "$2" pack-objects --revs "$HTTPD_DOCUMENT_ROOT_PATH/mypack" <objh >packh
> +        git -C "$P" config --add \
> +                "$configkey" \
> +                "$(cat objh) $(cat packh) $HTTPD_URL/dumb/mypack-$(cat packh).pack" &&
> +        cat objh
> +    else
> +        echo "unsupported object type in configure_exclusion (got $objt)"
> +    fi
>  }
>  
>  test_expect_success 'part of packfile response provided as URI' '
>  	P="$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
> -	rm -rf "$P" http_child log &&
> +	test_when_finished "rm -rf \"$P\" http_child log" &&
>  
>  	git init "$P" &&
>  	git -C "$P" config "uploadpack.allowsidebandall" "true" &&
> @@ -843,10 +870,10 @@ test_expect_success 'part of packfile response provided as URI' '
>  	git -C "$P" add my-blob &&
>  	echo other-blob >"$P/other-blob" &&
>  	git -C "$P" add other-blob &&
> -	git -C "$P" commit -m x &&
> +	test_commit -C "$P" A &&
>  
> -	configure_exclusion "$P" my-blob >h &&
> -	configure_exclusion "$P" other-blob >h2 &&
> +	configure_exclusion blob "$P" my-blob 0 >h &&
> +	configure_exclusion blob "$P" other-blob 0 >h2 &&
>  
>  	GIT_TRACE=1 GIT_TRACE_PACKET="$(pwd)/log" GIT_TEST_SIDEBAND_ALL=1 \
>  	git -c protocol.version=2 \
> @@ -881,18 +908,40 @@ test_expect_success 'part of packfile response provided as URI' '
>  	test_line_count = 6 filelist
>  '
>  
> -test_expect_success 'packfile URIs with fetch instead of clone' '
> +test_expect_success 'blobs packfile URIs with fetch instead of clone' '
>  	P="$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
> -	rm -rf "$P" http_child log &&
> +	test_when_finished "rm -rf \"$P\" http_child log" &&
>  
>  	git init "$P" &&
>  	git -C "$P" config "uploadpack.allowsidebandall" "true" &&
>  
>  	echo my-blob >"$P/my-blob" &&
>  	git -C "$P" add my-blob &&
> -	git -C "$P" commit -m x &&
> +	test_commit -C "$P" A &&
> +
> +	configure_exclusion blob "$P" my-blob >h &&
> +
> +	git init http_child &&
> +
> +	GIT_TEST_SIDEBAND_ALL=1 \
> +	git -C http_child -c protocol.version=2 \
> +		-c fetch.uriprotocols=http,https \

Isn't accepting http and https the default? Is this guarding against
config leak from a previous test? Ditto some later changes.