Re: [PATCH v5 5/6] transport-helper: call do_take_over() in connect_helper

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Jiang Xin <worldhello.net@xxxxxxxxx> writes:

> From: Jiang Xin <zhiyou.jx@xxxxxxxxxxxxxxx>
>
> After successfully connecting to the smart transport by calling
> process_connect_service() in connect_helper(), run do_take_over() to
> replace the old vtable with a new one which has methods ready for the
> smart transport connection. This will fix the exit code of git-archive

s/will fix/fixes

> in test case "archive remote http repository" of t5003.
>
> The connect_helper() function is used as the connect method of the
> vtable in "transport-helper.c", and it is called by transport_connect()
> in "transport.c" to setup a connection. The only place that we call
> transport_connect() so far is in "builtin/archive.c". Without running
> do_take_over(), it may fail to call transport_disconnect() in
> run_remote_archiver() of "builtin/archive.c". This is because for a
> stateless connection and a service like "git-upload-archive", the
> remote helper may receive a SIGPIPE signal and exit early.

OK.

> To have a
> graceful disconnect method by calling do_take_over() will solve this
> issue.

How about rewording to

    Call do_take_over() to have a graceful disconnect method, so that we
    still call transport_disconnect() even if the remote helper exits
    early.

to make "this issue" more explicit?

> Helped-by: Linus Arver <linusa@xxxxxxxxxx>
> Signed-off-by: Jiang Xin <zhiyou.jx@xxxxxxxxxxxxxxx>
> ---
>  t/t5003-archive-zip.sh | 2 +-
>  transport-helper.c     | 2 ++
>  2 files changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/t/t5003-archive-zip.sh b/t/t5003-archive-zip.sh
> index 6f85bd3463..961c6aac25 100755
> --- a/t/t5003-archive-zip.sh
> +++ b/t/t5003-archive-zip.sh
> @@ -268,7 +268,7 @@ test_expect_success 'remote archive does not work with protocol v1' '
>  '
>  
>  test_expect_success 'archive remote http repository' '
> -	test_must_fail git archive --remote="$HTTPD_URL/auth/smart/bare.git" \
> +	git archive --remote="$HTTPD_URL/auth/smart/bare.git" \
>  		--output=remote-http.zip HEAD &&
>  	test_cmp_bin d.zip remote-http.zip
>  '
> diff --git a/transport-helper.c b/transport-helper.c
> index 6fe9f4f208..91381be622 100644
> --- a/transport-helper.c
> +++ b/transport-helper.c
> @@ -669,6 +669,8 @@ static int connect_helper(struct transport *transport, const char *name,
>  
>  	fd[0] = data->helper->out;
>  	fd[1] = data->helper->in;
> +
> +	do_take_over(transport);
>  	return 0;
>  }
>  
> -- 
> 2.43.0




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