Function initialize_repository_version

setup.c:2419–2488

}

void initialize_repository_version(struct repository *repo,
				   int hash_algo,
				   enum ref_storage_format ref_storage_format,
				   int reinit)
{
	struct strbuf repo_version = STRBUF_INIT;
	int target_version = GIT_REPO_VERSION;
	int default_submodule_path_config = 0;

	/*
	 * Note that we initialize the repository version to 1 when the ref
	 * storage format is unknown. This is on purpose so that we can add the
	 * correct object format to the config during git-clone(1). The format
	 * version will get adjusted by git-clone(1) once it has learned about
	 * the remote repository's format.
	 */
	if (hash_algo != GIT_HASH_SHA1_LEGACY ||
	    ref_storage_format != REF_STORAGE_FORMAT_FILES ||
	    repo->ref_storage_payload)
		target_version = GIT_REPO_VERSION_READ;

	if (hash_algo != GIT_HASH_SHA1_LEGACY && hash_algo != GIT_HASH_UNKNOWN)
		repo_config_set(repo, "extensions.objectformat",
				hash_algos[hash_algo].name);
	else if (reinit)
		repo_config_set_gently(repo, "extensions.objectformat", NULL);

	if (repo->ref_storage_payload) {
		struct strbuf ref_uri = STRBUF_INIT;

		strbuf_addf(&ref_uri, "%s://%s",
			    ref_storage_format_to_name(ref_storage_format),
			    repo->ref_storage_payload);
		repo_config_set(repo, "extensions.refstorage", ref_uri.buf);
		strbuf_release(&ref_uri);
	} else if (ref_storage_format != REF_STORAGE_FORMAT_FILES) {
		repo_config_set(repo, "extensions.refstorage",
				ref_storage_format_to_name(ref_storage_format));
	} else if (reinit) {
		repo_config_set_gently(repo, "extensions.refstorage", NULL);
	}

	if (reinit) {
		struct strbuf config = STRBUF_INIT;
		struct repository_format repo_fmt = REPOSITORY_FORMAT_INIT;

		repo_common_path_append(repo, &config, "config");
		read_repository_format(&repo_fmt, config.buf);

		if (repo_fmt.v1_only_extensions.nr)
			target_version = GIT_REPO_VERSION_READ;

		strbuf_release(&config);
		clear_repository_format(&repo_fmt);
	}

	repo_config_get_bool(repo, "init.defaultSubmodulePathConfig",
			     &default_submodule_path_config);