Subject: Re: [PATCH 2/2] apply: do not use the_repository

From: Patrick Steinhardt <[email-masked]>
Date: Tue, 28 May 2024 09:28:00 +0200

On Tue, May 28, 2024 at 06:32:01AM +0000, Philip Peterson via GitGitGadget wrote:
> diff --git a/apply.c b/apply.c
> index 901b67e6255..364c05fbd06 100644
> --- a/apply.c
> +++ b/apply.c
> @@ -3218,13 +3218,13 @@ static int apply_binary(struct apply_state *state,
>  		return 0; /* deletion patch */
>  	}
>  
> -	if (has_object(the_repository, &oid, 0)) {
> +	if (has_object(state->repo, &oid, 0)) {
>  		/* We already have the postimage */
>  		enum object_type type;
>  		unsigned long size;
>  		char *result;
>  
> -		result = repo_read_object_file(the_repository, &oid, &type,
> +		result = repo_read_object_file(state->repo, &oid, &type,
>  					       &size);
>  		if (!result)
>  			return error(_("the necessary postimage %s for "

We call `get_oid_hex()` in this function, which ultimately ends up
accessing `the_repository` via `the_hash_algo`. We should likely convert
those to `repo_get_oid()`.

There are also other accesses to `the_hash_algo` in this function, which
should be converted to use `state->repo->hash_algo`, as well.

> @@ -3539,9 +3539,9 @@ static int three_way_merge(struct apply_state *state,
>  
>  	/* resolve trivial cases first */
>  	if (oideq(base, ours))
> -		return resolve_to(image, theirs);
> +		return resolve_to(state->repo, image, theirs);
>  	else if (oideq(base, theirs) || oideq(ours, theirs))
> -		return resolve_to(image, ours);
> +		return resolve_to(state->repo, image, ours);
>  
>  	read_mmblob(&base_file, base);
>  	read_mmblob(&our_file, ours);

The calls to `read_mmblob()` also end up accessing `the_repository`.

Other than that the patches look good to me. Thanks for working on this!

Patrick