Re: [PATCH 3/4] fast-export: don't parse all the commits

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Felipe Contreras <felipe.contreras@xxxxxxxxx> writes:

> We don't need the parsed objects at this point, merely the information
> that they have marks.
>
> Seems to be three times faster in my setup with lots of objects.
>
> Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
> ---
>  builtin/fast-export.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/builtin/fast-export.c b/builtin/fast-export.c
> index a5b8da8..3c5a701 100644
> --- a/builtin/fast-export.c
> +++ b/builtin/fast-export.c
> @@ -636,7 +636,7 @@ static void import_marks(char *input_file)
>  			/* only commits */
>  			continue;
>  
> -		object = parse_object(sha1);
> +		object = lookup_unknown_object(sha1);

This updates the parse_object() moved by the previous patch. At this
point in the codeflow, unlike the original, we already _know_ the
object must be a commit; wouldn't an equivalent of:

	object = &(lookup_commit(sha1)->object)

be more correct here?

>  
>  		if (object->flags & SHOWN)
>  			error("Object %s already has a mark", sha1_to_hex(sha1));
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