Function get_short_oid

object-name.c:456–546

}

static enum get_oid_result get_short_oid(struct repository *r,
					 const char *name, int len,
					 struct object_id *oid,
					 unsigned flags)
{
	struct odb_for_each_object_options opts = { 0 };
	int status;
	struct disambiguate_state ds;
	int quietly = !!(flags & GET_OID_QUIETLY);
	const struct git_hash_algo *algo = r->hash_algo;

	if (flags & GET_OID_HASH_ANY)
		algo = NULL;

	if (init_object_disambiguation(r, name, len, algo, &ds) < 0)
		return -1;

	if (HAS_MULTI_BITS(flags & GET_OID_DISAMBIGUATORS))
		BUG("multiple get_short_oid disambiguator flags");

	if (flags & GET_OID_COMMIT)
		ds.fn = disambiguate_commit_only;
	else if (flags & GET_OID_COMMITTISH)
		ds.fn = disambiguate_committish_only;
	else if (flags & GET_OID_TREE)
		ds.fn = disambiguate_tree_only;
	else if (flags & GET_OID_TREEISH)
		ds.fn = disambiguate_treeish_only;
	else if (flags & GET_OID_BLOB)
		ds.fn = disambiguate_blob_only;
	else
		ds.fn = default_disambiguate_hint;

	opts.prefix = &ds.bin_pfx;
	opts.prefix_hex_len = ds.len;

	odb_for_each_object_ext(r->objects, NULL, update_disambiguate_state,
				&ds, &opts);
	status = finish_object_disambiguation(&ds, oid);

	/*
	 * If we didn't find it, do the usual reprepare() slow-path,
	 * since the object may have recently been added to the repository
	 * or migrated from loose to packed.
	 */
	if (status == MISSING_OBJECT) {
		odb_reprepare(r->objects);
		odb_for_each_object_ext(r->objects, NULL, update_disambiguate_state,
					&ds, &opts);
		status = finish_object_disambiguation(&ds, oid);
	}

	if (!quietly && (status == SHORT_NAME_AMBIGUOUS)) {
		struct oid_array collect = OID_ARRAY_INIT;
		struct ambiguous_output out = {
			.ds = &ds,
			.sb = STRBUF_INIT,
			.advice = STRBUF_INIT,