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List:       git
Subject:    Re: [PATCH 18/19] submodule: use submodule repos for object lookup
From:       Derrick Stolee <stolee () gmail ! com>
Date:       2018-10-31 13:38:02
Message-ID: ab0f5b37-b4f1-3efc-b30f-f3b34f2a11cb () gmail ! com
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On 10/16/2018 7:35 PM, Stefan Beller wrote:
> @@ -482,14 +483,46 @@ void prepare_submodule_repo_env(struct argv_array *out)
>   			 DEFAULT_GIT_DIR_ENVIRONMENT);
>   }
>   
> -/* Helper function to display the submodule header line prior to the full
> - * summary output. If it can locate the submodule objects directory it will
> - * attempt to lookup both the left and right commits and put them into the
> - * left and right pointers.
> +/*
> + * Initialize 'out' based on the provided submodule path.
> + *
> + * Unlike repo_submodule_init, this tolerates submodules not present
> + * in .gitmodules. This function exists only to preserve historical behavior,
> + *
> + * Returns 0 on success, -1 when the submodule is not present.
> + */
> +static int open_submodule(struct repository *out, const char *path)
> +{
> +	struct strbuf sb = STRBUF_INIT;
> +
> +	if (submodule_to_gitdir(&sb, path) || repo_init(out, sb.buf, NULL)) {
> +		strbuf_release(&sb);
> +		return -1;
> +	}
> +
> +	out->submodule_prefix = xstrdup(path);
> +	out->submodule_prefix = xstrfmt("%s%s/",
> +					the_repository->submodule_prefix ?
> +					the_repository->submodule_prefix :
> +					"", path);
> +
> +	strbuf_release(&sb);
> +	return 0;
> +}

Based on the recent test coverage report [1], this xstrfmt() call is never
run witha non-null the_repository->submodule_prefix. Is there a way we can
exercise that branch?

Thanks,
-Stolee

[1] 
https://public-inbox.org/git/62f0bcf6-aa73-c192-d804-e6d69cac146f@gmail.com/
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