add exec to shell subcommand

src/ahriman/application/ahriman.py

@@ -762,6 +762,7 @@ def _set_shell_parser(root: SubParserAction) -> argparse.ArgumentParser:
     parser = root.add_parser("shell", help="envoke python shell",
                              description="drop into python shell while having created application",
                              formatter_class=_formatter)
+    parser.add_argument("code", help="instead of dropping into shell, just execute the specified code", nargs="?")
     parser.add_argument("-v", "--verbose", help=argparse.SUPPRESS, action="store_true")
     parser.set_defaults(handler=handlers.Shell, lock=None, report=False)
     return parser

src/ahriman/application/handlers/shell.py

@@ -56,4 +56,7 @@ class Shell(Handler):
             # licensed by https://creativecommons.org/licenses/by-sa/3.0
             path = Path(sys.prefix) / "share" / "ahriman" / "templates" / "shell"
             StringPrinter(path.read_text(encoding="utf8")).print(verbose=False)
-        code.interact(local=locals())
+        if args.code is None:
+            code.interact(local=locals())
+        else:
+            code.InteractiveConsole(locals=locals()).runcode(args.code)

tests/ahriman/application/handlers/test_handler_shell.py

@@ -17,6 +17,7 @@ def _default_args(args: argparse.Namespace) -> argparse.Namespace:
     Returns:
         argparse.Namespace: generated arguments for these test cases
     """
+    args.code = None
     args.verbose = False
     return args
 
@@ -33,6 +34,19 @@ def test_run(args: argparse.Namespace, configuration: Configuration, mocker: Moc
     application_mock.assert_called_once_with(local=pytest.helpers.anyvar(int))
 
 
+def test_run_eval(args: argparse.Namespace, configuration: Configuration, mocker: MockerFixture) -> None:
+    """
+    must run command
+    """
+    args = _default_args(args)
+    args.code = """print("hello world")"""
+    mocker.patch("ahriman.models.repository_paths.RepositoryPaths.tree_create")
+    application_mock = mocker.patch("code.InteractiveConsole.runcode")
+
+    Shell.run(args, "x86_64", configuration, report=False, unsafe=False)
+    application_mock.assert_called_once_with(args.code)
+
+
 def test_run_verbose(args: argparse.Namespace, configuration: Configuration, mocker: MockerFixture) -> None:
     """
     must run command with verbose option