Function midx_compaction_step_exec_write

repack-midx.c:433–483

}

static int midx_compaction_step_exec_write(struct midx_compaction_step *step,
					   struct repack_write_midx_opts *opts,
					   const char *base)
{
	struct child_process cmd = CHILD_PROCESS_INIT;
	struct string_list hash = STRING_LIST_INIT_DUP;
	struct string_list_item *item;
	const char *preferred_pack = NULL;
	int ret = 0;

	if (!step->u.write.nr) {
		ret = error(_("no packs to write MIDX during compaction"));
		goto out;
	}

	for_each_string_list_item(item, &step->u.write) {
		if (item->util)
			preferred_pack = item->string;
	}

	repack_prepare_midx_command(&cmd, opts, "write");
	strvec_pushl(&cmd.args, "--incremental", "--no-write-chain-file", NULL);
	strvec_pushf(&cmd.args, "--base=%s", base ? base : "none");

	if (preferred_pack) {
		struct strbuf buf = STRBUF_INIT;

		strbuf_addstr(&buf, preferred_pack);
		strbuf_strip_suffix(&buf, ".idx");
		strbuf_addstr(&buf, ".pack");

		strvec_pushf(&cmd.args, "--preferred-pack=%s", buf.buf);

		strbuf_release(&buf);
	}

	ret = repack_fill_midx_stdin_packs(&cmd, &step->u.write, &hash);
	if (hash.nr != 1) {
		ret = error(_("expected exactly one line during MIDX write, "
			      "got: %"PRIuMAX),
			    (uintmax_t)hash.nr);
		goto out;
	}

	step->csum = xstrdup(hash.items[0].string);

out:
	string_list_clear(&hash, 0);

	return ret;
}

static int midx_compaction_step_exec_compact(struct midx_compaction_step *step,
					     struct repack_write_midx_opts *opts)