add repo-structure subcommand

This commit also changes Tree class, replacing load method by resolve

tests/ahriman/application/handlers/test_handler_structure.py

@@ -0,0 +1,31 @@
+import argparse
+import pytest
+
+from pytest_mock import MockerFixture
+
+from ahriman.application.handlers import Structure
+from ahriman.core.configuration import Configuration
+from ahriman.core.repository import Repository
+from ahriman.models.package import Package
+
+
+def test_run(args: argparse.Namespace, configuration: Configuration, repository: Repository,
+             package_ahriman: Package, mocker: MockerFixture) -> None:
+    """
+    must run command
+    """
+    mocker.patch("ahriman.core.repository.Repository.load", return_value=repository)
+    mocker.patch("ahriman.core.repository.Repository.packages", return_value=[package_ahriman])
+    application_mock = mocker.patch("ahriman.core.tree.Tree.resolve", return_value=[[package_ahriman]])
+    print_mock = mocker.patch("ahriman.core.formatters.Printer.print")
+
+    Structure.run(args, "x86_64", configuration, report=False, unsafe=False)
+    application_mock.assert_called_once_with([package_ahriman], repository.paths, pytest.helpers.anyvar(int))
+    print_mock.assert_called_once_with(verbose=True, separator=" ")
+
+
+def test_disallow_auto_architecture_run() -> None:
+    """
+    must not allow multi architecture run
+    """
+    assert not Structure.ALLOW_AUTO_ARCHITECTURE_RUN