Re: [RFC PATCH v2 4/4] read-tree: add --no-sparse to turn off sparse hook

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Hi,

On Mon, 10 Aug 2009, Nguyễn Thái Ngọc Duy wrote:

> diff --git a/unpack-trees.c b/unpack-trees.c
> index f407bf5..d087112 100644
> --- a/unpack-trees.c
> +++ b/unpack-trees.c
> @@ -530,8 +530,10 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
>  	if (o->trivial_merges_only && o->nontrivial_merge)
>  		return unpack_failed(o, "Merge requires file-level merging");
>  
> -	if (run_sparse_hook(o))
> -		return unpack_failed(o, NULL);
> +	if (!o->no_sparse_hook) {
> +		if (run_sparse_hook(o))
> +			return unpack_failed(o, NULL);
> +	}
>  

IMHO this would read nicelier as

	if (!o->no_sparse_hook && run_sparse_hook(o))
		return unpack_failed(o, NULL);

> diff --git a/unpack-trees.h b/unpack-trees.h
> index ad21823..81eb2ef 100644
> --- a/unpack-trees.h
> +++ b/unpack-trees.h
> @@ -30,6 +30,7 @@ struct unpack_trees_options {
>  		     skip_unmerged,
>  		     initial_checkout,
>  		     diff_index_cached,
> +		     no_sparse_hook,
>  		     gently;

Hmm.  I understand that the assumption is that memset(&opts, 0, 
sizeof(opts)); should give you a sensible default, but I cannot avoid 
noticing that "no_sparse_hook = 0" is a double negation, something to be 
avoided...

Thanks,
Dscho

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