feat(cli)!: actually switch directory with --directory/-C

docs/cli.md

@@ -29,7 +29,8 @@ then `--help` combined with any of those can give you more information.
 * `--no-interaction (-n)`: Do not ask any interactive question.
 * `--no-plugins`: Disables plugins.
 * `--no-cache`: Disables Poetry source caches.
-* `--directory=DIRECTORY (-C)`: The working directory for the Poetry command (defaults to the current working directory).
+* `--directory=DIRECTORY (-C)`: The working directory for the Poetry command (defaults to the current working directory). All command-line arguments will be resolved relative to the given directory.
+* `--project=PROJECT (-P)`: Specify another path as the project root. All command-line arguments will be resolved relative to the current working directory or directory specified using `--directory` option if used.
 
 
 ## new

src/poetry/console/application.py

@@ -20,6 +20,7 @@
 from poetry.__version__ import __version__
 from poetry.console.command_loader import CommandLoader
 from poetry.console.commands.command import Command
+from poetry.utils.helpers import directory
 
 
 if TYPE_CHECKING:
@@ -110,6 +111,64 @@ def __init__(self) -> None:
         command_loader = CommandLoader({name: load_command(name) for name in COMMANDS})
         self.set_command_loader(command_loader)
 
+    @property
+    def _default_definition(self) -> Definition:
+        from cleo.io.inputs.option import Option
+
+        definition = super()._default_definition
+
+        definition.add_option(
+            Option("--no-plugins", flag=True, description="Disables plugins.")
+        )
+
+        definition.add_option(
+            Option(
+                "--no-cache", flag=True, description="Disables Poetry source caches."
+            )
+        )
+
+        definition.add_option(
+            Option(
+                "--project",
+                "-P",
+                flag=False,
+                description=(
+                    "Specify another path as the project root."
+                    " All command-line arguments will be resolved relative to the current working directory."
+                ),
+            )
+        )
+
+        definition.add_option(
+            Option(
+                "--directory",
+                "-C",
+                flag=False,
+                description=(
+                    "The working directory for the Poetry command (defaults to the"
+                    " current working directory). All command-line arguments will be"
+                    " resolved relative to the given directory."
+                ),
+            )
+        )
+
+        return definition
+
+    @cached_property
+    def _project_directory(self) -> Path:
+        if self._io and self._io.input.option("project"):
+            with directory(self._working_directory):
+                return Path(self._io.input.option("project")).absolute()
+
+        return self._working_directory
+
+    @cached_property
+    def _working_directory(self) -> Path:
+        if self._io and self._io.input.option("directory"):
+            return Path(self._io.input.option("directory")).absolute()
+
+        return Path.cwd()
+
     @property
     def poetry(self) -> Poetry:
         from poetry.factory import Factory
@@ -118,7 +177,7 @@ def poetry(self) -> Poetry:
             return self._poetry
 
         self._poetry = Factory().create_poetry(
-            cwd=self._directory,
+            cwd=self._project_directory,
             io=self._io,
             disable_plugins=self._disable_plugins,
             disable_cache=self._disable_cache,
@@ -171,7 +230,9 @@ def _run(self, io: IO) -> int:
 
         self._load_plugins(io)
 
-        exit_code: int = super()._run(io)
+        with directory(self._working_directory):
+            exit_code: int = super()._run(io)
+
         return exit_code
 
     def _configure_io(self, io: IO) -> None:
@@ -331,49 +392,13 @@ def _load_plugins(self, io: IO) -> None:
             from poetry.plugins.application_plugin import ApplicationPlugin
             from poetry.plugins.plugin_manager import PluginManager
 
-            PluginManager.add_project_plugin_path(self._directory)
+            PluginManager.add_project_plugin_path(self._project_directory)
             manager = PluginManager(ApplicationPlugin.group)
             manager.load_plugins()
             manager.activate(self)
 
         self._plugins_loaded = True
 
-    @property
-    def _default_definition(self) -> Definition:
-        from cleo.io.inputs.option import Option
-
-        definition = super()._default_definition
-
-        definition.add_option(
-            Option("--no-plugins", flag=True, description="Disables plugins.")
-        )
-
-        definition.add_option(
-            Option(
-                "--no-cache", flag=True, description="Disables Poetry source caches."
-            )
-        )
-
-        definition.add_option(
-            Option(
-                "--directory",
-                "-C",
-                flag=False,
-                description=(
-                    "The working directory for the Poetry command (defaults to the"
-                    " current working directory)."
-                ),
-            )
-        )
-
-        return definition
-
-    @cached_property
-    def _directory(self) -> Path:
-        if self._io and self._io.input.option("directory"):
-            return Path(self._io.input.option("directory")).absolute()
-        return Path.cwd()
-
 
 def main() -> int:
     exit_code: int = Application().run()

src/poetry/console/commands/init.py

@@ -74,12 +74,10 @@ def handle(self) -> int:
 
         project_path = Path.cwd()
 
-        if self.io.input.option("directory"):
-            project_path = Path(self.io.input.option("directory"))
+        if self.io.input.option("project"):
+            project_path = Path(self.io.input.option("project"))
             if not project_path.exists() or not project_path.is_dir():
-                self.line_error(
-                    "<error>The --directory path is not a directory.</error>"
-                )
+                self.line_error("<error>The --project path is not a directory.</error>")
                 return 1
 
         return self._init_pyproject(project_path=project_path)

src/poetry/console/commands/new.py

@@ -54,9 +54,9 @@ class NewCommand(InitCommand):
     def handle(self) -> int:
         from pathlib import Path
 
-        if self.io.input.option("directory"):
+        if self.io.input.option("project"):
             self.line_error(
-                "<warning>--directory only makes sense with existing projects, and will"
+                "<warning>--project only makes sense with existing projects, and will"
                 " be ignored. You should consider the option --path instead.</warning>"
             )
 

tests/console/commands/test_build.py

@@ -206,7 +206,7 @@ def test_build_relative_directory_src_layout(
         # initializes Poetry before passing the directory.
         app = Application()
         tester = ApplicationTester(app)
-        tester.execute("build --directory .")
+        tester.execute("build --project .")
 
         build_dir = tmp_project_path / "dist"
 

tests/console/commands/test_version.py

@@ -1,14 +1,22 @@
 from __future__ import annotations
 
+import os
+import textwrap
+
+from pathlib import Path
 from typing import TYPE_CHECKING
 
 import pytest
 
+from cleo.testers.application_tester import ApplicationTester
+
+from poetry.console.application import Application
 from poetry.console.commands.version import VersionCommand
 
 
 if TYPE_CHECKING:
     from cleo.testers.command_tester import CommandTester
+    from pytest_mock import MockerFixture
 
     from poetry.poetry import Poetry
     from tests.types import CommandTesterFactory
@@ -132,3 +140,103 @@ def test_dry_run(tester: CommandTester) -> None:
     new_pyproject = tester.command.poetry.file.path.read_text(encoding="utf-8")
     assert tester.io.fetch_output() == "Bumping version from 1.2.3 to 2.0.0\n"
     assert old_pyproject == new_pyproject
+
+
+def test_version_with_project_parameter(
+    fixture_dir: FixtureDirGetter, mocker: MockerFixture
+) -> None:
+    app = Application()
+    tester = ApplicationTester(app)
+
+    orig_version_command = VersionCommand.handle
+
+    def mock_handle(command: VersionCommand) -> int:
+        exit_code = orig_version_command(command)
+
+        command.io.write_line(f"ProjectPath: {command.poetry.pyproject_path.parent}")
+        command.io.write_line(f"WorkingDirectory: {os.getcwd()}")
+
+        return exit_code
+
+    mocker.patch("poetry.console.commands.version.VersionCommand.handle", mock_handle)
+
+    source_dir = fixture_dir("scripts")
+    tester.execute(f"--project {source_dir} version")
+
+    output = tester.io.fetch_output()
+    expected = textwrap.dedent(f"""\
+    scripts 0.1.0
+    ProjectPath: {source_dir}
+    WorkingDirectory: {os.getcwd()}
+    """)
+
+    assert source_dir != Path(os.getcwd())
+    assert output == expected
+
+
+def test_version_with_directory_parameter(
+    fixture_dir: FixtureDirGetter, mocker: MockerFixture
+) -> None:
+    app = Application()
+    tester = ApplicationTester(app)
+
+    orig_version_command = VersionCommand.handle
+
+    def mock_handle(command: VersionCommand) -> int:
+        exit_code = orig_version_command(command)
+
+        command.io.write_line(f"ProjectPath: {command.poetry.pyproject_path.parent}")
+        command.io.write_line(f"WorkingDirectory: {os.getcwd()}")
+
+        return exit_code
+
+    mocker.patch("poetry.console.commands.version.VersionCommand.handle", mock_handle)
+
+    source_dir = fixture_dir("scripts")
+    tester.execute(f"--directory {source_dir} version")
+
+    output = tester.io.fetch_output()
+    expected = textwrap.dedent(f"""\
+    scripts 0.1.0
+    ProjectPath: {source_dir}
+    WorkingDirectory: {source_dir}
+    """)
+
+    assert source_dir != Path(os.getcwd())
+    assert output == expected
+
+
+def test_version_with_directory_and_project_parameter(
+    fixture_dir: FixtureDirGetter, mocker: MockerFixture
+) -> None:
+    app = Application()
+    tester = ApplicationTester(app)
+
+    orig_version_command = VersionCommand.handle
+
+    def mock_handle(command: VersionCommand) -> int:
+        exit_code = orig_version_command(command)
+
+        command.io.write_line(f"ProjectPath: {command.poetry.pyproject_path.parent}")
+        command.io.write_line(f"WorkingDirectory: {os.getcwd()}")
+
+        return exit_code
+
+    mocker.patch("poetry.console.commands.version.VersionCommand.handle", mock_handle)
+
+    source_dir = fixture_dir("scripts")
+    working_directory = source_dir.parent
+    project_path = "./scripts"
+
+    tester.execute(f"--directory {working_directory} --project {project_path} version")
+
+    output = tester.io.fetch_output()
+
+    expected = textwrap.dedent(f"""\
+    scripts 0.1.0
+    ProjectPath: {source_dir}
+    WorkingDirectory: {working_directory}
+    """)
+
+    assert source_dir != working_directory
+    assert output == expected