Function flush_packfile_transaction

object-file.c:1231–1279

}

static void flush_packfile_transaction(struct odb_transaction_files *transaction)
{
	struct transaction_packfile *state = &transaction->packfile;
	struct repository *repo = transaction->base.source->odb->repo;
	unsigned char hash[GIT_MAX_RAWSZ];
	struct strbuf packname = STRBUF_INIT;
	char *idx_tmp_name = NULL;

	if (!state->f)
		return;

	if (state->nr_written == 0) {
		close(state->f->fd);
		free_hashfile(state->f);
		unlink(state->pack_tmp_name);
		goto clear_exit;
	} else if (state->nr_written == 1) {
		finalize_hashfile(state->f, hash, FSYNC_COMPONENT_PACK,
				  CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE);
	} else {
		int fd = finalize_hashfile(state->f, hash, FSYNC_COMPONENT_PACK, 0);
		fixup_pack_header_footer(repo->hash_algo, fd, hash, state->pack_tmp_name,
					 state->nr_written, hash,
					 state->offset);
		close(fd);
	}

	strbuf_addf(&packname, "%s/pack/pack-%s.",
		    repo_get_object_directory(transaction->base.source->odb->repo),
		    hash_to_hex_algop(hash, repo->hash_algo));

	stage_tmp_packfiles(repo, &packname, state->pack_tmp_name,
			    state->written, state->nr_written, NULL,
			    &state->pack_idx_opts, hash, &idx_tmp_name);
	rename_tmp_packfile_idx(repo, &packname, &idx_tmp_name);

	for (uint32_t i = 0; i < state->nr_written; i++)
		free(state->written[i]);

clear_exit:
	free(idx_tmp_name);
	free(state->pack_tmp_name);
	free(state->written);
	memset(state, 0, sizeof(*state));

	strbuf_release(&packname);
	/* Make objects we just wrote available to ourselves */
	odb_reprepare(repo->objects);
}

/*
 * This writes the specified object to a packfile. Objects written here