Method: Rugged::Repository#expand_oids

Defined in:
ext/rugged/rugged_repo.c

#expand_oids([oid..], object_type = :any) ⇒ Hash #expand_oids([oid..], object_type = [type..]) ⇒ Hash

Expand a list of short oids to their full value, assuming they exist in the repository. If ‘object_type` is passed and is an array, it must be the same length as the OIDs array. If it’s a single type name, all OIDs will be expected to resolve to that object type. OIDs that don’t match the expected object types will not be expanded.

Returns a hash of ‘{ short_oid => full_oid }` for the short OIDs which exist in the repository and match the expected object type. Missing OIDs will not appear in the resulting hash.

Overloads:

  • #expand_oids([oid..], object_type = :any) ⇒ Hash

    Returns:

    • (Hash)
  • #expand_oids([oid..], object_type = [type..]) ⇒ Hash

    Returns:

    • (Hash) 

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# File 'ext/rugged/rugged_repo.c', line 1226

static VALUE rb_git_repo_expand_oids(int argc, VALUE *argv, VALUE self)
{
	VALUE rb_result, rb_oids, rb_expected_type;

	git_repository *repo;
	git_odb *odb;
	git_odb_expand_id *expand;
	long i, expand_count;
	int error;

	Data_Get_Struct(self, git_repository, repo);
	rb_scan_args(argc, argv, "11", &rb_oids, &rb_expected_type);

	Check_Type(rb_oids, T_ARRAY);
	expand_count = RARRAY_LEN(rb_oids);
	expand = alloca(expand_count * sizeof(git_odb_expand_id));

	for (i = 0; i < expand_count; ++i) {
		VALUE rb_hex = rb_ary_entry(rb_oids, i);
		Check_Type(rb_hex, T_STRING);

		rugged_exception_check(
			git_oid_fromstrn(&expand[i].id, RSTRING_PTR(rb_hex), RSTRING_LEN(rb_hex))
		);
		expand[i].length = RSTRING_LEN(rb_hex);
	}

	if (TYPE(rb_expected_type) == T_ARRAY) {
		if (RARRAY_LEN(rb_expected_type) != expand_count)
			rb_raise(rb_eRuntimeError,
				"the `object_type` array must be the same length as the `oids` array");

		for (i = 0; i < expand_count; ++i) {
			VALUE rb_type = rb_ary_entry(rb_expected_type, i);
			expand[i].type = rugged_otype_get(rb_type);
		}
	} else {
		git_otype expected_type = GIT_OBJ_ANY;

		if (!NIL_P(rb_expected_type))
			expected_type = rugged_otype_get(rb_expected_type);

		for (i = 0; i < expand_count; ++i)
			expand[i].type = expected_type;
	}

	error = git_repository_odb(&odb, repo);
	rugged_exception_check(error);

	error = git_odb_expand_ids(odb, expand, (size_t)expand_count);
	git_odb_free(odb);
	rugged_exception_check(error);

	rb_result = rb_hash_new();

	for (i = 0; i < expand_count; ++i) {
		if (expand[i].length) {
			rb_hash_aset(rb_result,
				rb_ary_entry(rb_oids, i), rugged_create_oid(&expand[i].id));
		}
	}

	return rb_result;
}