Relay return code as exit code when running script

src/poetry/console/commands/run.py

@@ -58,7 +58,7 @@ def run_script(self, script: str | dict[str, str], args: str) -> int:
             "import sys; "
             "from importlib import import_module; "
             f"sys.argv = {args!r}; {src_in_sys_path}"
-            f"import_module('{module}').{callable_}()"
+            f"sys.exit(import_module('{module}').{callable_}())"
         ]
 
         return self.env.execute(*cmd)

tests/console/commands/test_run.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+import subprocess
+
 from typing import TYPE_CHECKING
 
 import pytest
@@ -12,9 +14,12 @@
     from cleo.testers.command_tester import CommandTester
     from pytest_mock import MockerFixture
 
+    from poetry.poetry import Poetry
     from poetry.utils.env import MockEnv
     from poetry.utils.env import VirtualEnv
     from tests.types import CommandTesterFactory
+    from tests.types import FixtureDirGetter
+    from tests.types import ProjectFactory
 
 
 @pytest.fixture
@@ -27,6 +32,19 @@ def patches(mocker: MockerFixture, env: MockEnv) -> None:
     mocker.patch("poetry.utils.env.EnvManager.get", return_value=env)
 
 
+@pytest.fixture
+def poetry_with_scripts(
+    project_factory: ProjectFactory, fixture_dir: FixtureDirGetter
+) -> Poetry:
+    source = fixture_dir("scripts")
+
+    return project_factory(
+        name="scripts",
+        pyproject_content=(source / "pyproject.toml").read_text(encoding="utf-8"),
+        source=source,
+    )
+
+
 def test_run_passes_all_args(app_tester: ApplicationTester, env: MockEnv):
     app_tester.execute("run python -V")
     assert [["python", "-V"]] == env.executed
@@ -105,3 +123,26 @@ def test_run_console_scripts_of_editable_dependencies_on_windows(
     # We prove that the CMD script executed successfully by verifying the exit code
     # matches what we wrote in the script
     assert tester.execute("quix") == 123
+
+
+def test_run_script_exit_code(
+    poetry_with_scripts: Poetry,
+    command_tester_factory: CommandTesterFactory,
+    tmp_venv: VirtualEnv,
+    mocker: MockerFixture,
+) -> None:
+    mocker.patch(
+        "os.execvpe",
+        lambda file, args, env: subprocess.call([file] + args[1:], env=env),
+    )
+    install_tester = command_tester_factory(
+        "install",
+        poetry=poetry_with_scripts,
+        environment=tmp_venv,
+    )
+    assert install_tester.execute() == 0
+    tester = command_tester_factory(
+        "run", poetry=poetry_with_scripts, environment=tmp_venv
+    )
+    assert tester.execute("exit-code") == 42
+    assert tester.execute("return-code") == 42

tests/fixtures/scripts/pyproject.toml

@@ -0,0 +1,17 @@
+[tool.poetry]
+name = "scripts"
+version = "0.1.0"
+description = ""
+authors = ["Your Name <you@example.com>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.7"
+
+[tool.poetry.scripts]
+exit-code = "scripts.exit_code:main"
+return-code = "scripts.return_code:main"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"

tests/fixtures/scripts/scripts/exit_code.py

@@ -0,0 +1,9 @@
+from __future__ import annotations
+
+
+def main() -> None:
+    raise SystemExit(42)
+
+
+if __name__ == "__main__":
+    main()

tests/fixtures/scripts/scripts/return_code.py

@@ -0,0 +1,9 @@
+from __future__ import annotations
+
+
+def main() -> int:
+    return 42
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())