Support the [project] section (PEP 621)

.github/workflows/main.yaml

@@ -43,16 +43,22 @@ jobs:
             poetry-version: '1.7.1'
           - python-version: '3.7'
             poetry-version: '1.8.1'
+        include:
+          - python-version: '3.11'
+            poetry-version: 'git+https://github.com/radoering/poetry.git@pep621-support'
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+      - if: ${{ startsWith(matrix.poetry-version, 'git') }}
+        run: |
+          echo "USE_PEP621=1" >> $GITHUB_ENV
       - run: |
           pip install pipx
-          pipx install poetry==${{ matrix.poetry-version }}
+          pipx install ${{ startsWith(matrix.poetry-version, 'git') && matrix.poetry-version || format('poetry=={0}', matrix.poetry-version) }}
           pipx install invoke
 
           poetry install --extras plugin

poetry_dynamic_versioning/__init__.py

@@ -8,6 +8,7 @@
 import subprocess
 import sys
 import textwrap
+from enum import Enum
 from importlib import import_module
 from pathlib import Path
 from typing import Mapping, MutableMapping, Optional, Sequence, Tuple, Union
@@ -118,17 +119,26 @@ class _Config(Mapping):
         pass
 
 
+class _Mode(Enum):
+    Classic = "classic"
+    Pep621 = "pep621"
+
+
 class _ProjectState:
     def __init__(
         self,
         path: Path,
-        original_version: str,
+        original_version: Optional[str],
         version: str,
+        mode: _Mode,
+        dynamic_index: Optional[int],
         substitutions: Optional[MutableMapping[Path, str]] = None,
     ) -> None:
         self.path = path
         self.original_version = original_version
         self.version = version
+        self.mode = mode
+        self.dynamic_index = dynamic_index
         self.substitutions = (
             {} if substitutions is None else substitutions
         )  # type: MutableMapping[Path, str]
@@ -590,11 +600,21 @@ def _substitute_version_in_text(version: str, content: str, patterns: Sequence[_
 
 
 def _apply_version(
-    version: str, instance: Version, config: _Config, pyproject_path: Path, retain: bool = False
+    name: str,
+    version: str,
+    instance: Version,
+    config: _Config,
+    pyproject_path: Path,
+    mode: _Mode,
+    retain: bool = False,
 ) -> None:
     pyproject = tomlkit.parse(pyproject_path.read_bytes().decode("utf-8"))
 
-    pyproject["tool"]["poetry"]["version"] = version  # type: ignore
+    if mode == _Mode.Classic:
+        pyproject["tool"]["poetry"]["version"] = version  # type: ignore
+    elif mode == _Mode.Pep621:
+        pyproject["project"]["dynamic"].remove("version")  # type: ignore
+        pyproject["project"]["version"] = version  # type: ignore
 
     # Disable the plugin in case we're building a source distribution,
     # which won't have access to the VCS info at install time.
@@ -604,8 +624,6 @@ def _apply_version(
 
     pyproject_path.write_bytes(tomlkit.dumps(pyproject).encode("utf-8"))
 
-    name = pyproject["tool"]["poetry"]["name"]  # type: ignore
-
     for file_name, file_info in config["files"].items():
         full_file = pyproject_path.parent.joinpath(file_name)
 
@@ -635,19 +653,12 @@ def _apply_version(
 
 
 def _get_and_apply_version(
-    name: Optional[str] = None,
-    original: Optional[str] = None,
     pyproject: Optional[Mapping] = None,
     pyproject_path: Optional[Path] = None,
     retain: bool = False,
     force: bool = False,
-    # fmt: off
-    io: bool = True
-    # fmt: on
+    io: bool = True,
 ) -> Optional[str]:
-    if name is not None and name in _state.projects:
-        return name
-
     if pyproject_path is None:
         pyproject_path = _get_pyproject_path()
         if pyproject_path is None:
@@ -656,11 +667,32 @@ def _get_and_apply_version(
     if pyproject is None:
         pyproject = tomlkit.parse(pyproject_path.read_bytes().decode("utf-8"))
 
-    if name is None or original is None:
+    classic = (
+        "tool" in pyproject
+        and "poetry" in pyproject["tool"]
+        and "name" in pyproject["tool"]["poetry"]
+    )
+    pep621 = (
+        "project" in pyproject
+        and "name" in pyproject["project"]
+        and "dynamic" in pyproject["project"]
+        and "version" in pyproject["project"]["dynamic"]
+        and "version" not in pyproject["project"]
+    )
+
+    if classic:
         name = pyproject["tool"]["poetry"]["name"]
         original = pyproject["tool"]["poetry"]["version"]
-        if name in _state.projects:
-            return name
+        dynamic_index = None
+    elif pep621:
+        name = pyproject["project"]["name"]
+        original = pyproject["project"].get("version")
+        dynamic_index = pyproject["project"]["dynamic"].index("version")
+    else:
+        return name if name in _state.projects else None
+
+    if name in _state.projects:
+        return name
 
     config = _get_config(pyproject)
     if not config["enable"] and not force:
@@ -674,11 +706,20 @@ def _get_and_apply_version(
     finally:
         os.chdir(str(initial_dir))
 
-    # Condition will always be true, but it makes Mypy happy.
-    if name is not None and original is not None:
-        _state.projects[name] = _ProjectState(pyproject_path, original, version)
+    if classic and name is not None and original is not None:
+        mode = _Mode.Classic
+        _state.projects[name] = _ProjectState(
+            pyproject_path, original, version, mode, dynamic_index
+        )
+        if io:
+            _apply_version(name, version, instance, config, pyproject_path, mode, retain)
+    elif pep621 and name is not None:
+        mode = _Mode.Pep621
+        _state.projects[name] = _ProjectState(
+            pyproject_path, original, version, mode, dynamic_index
+        )
         if io:
-            _apply_version(version, instance, config, pyproject_path, retain)
+            _apply_version(name, version, instance, config, pyproject_path, mode, retain)
 
     return name
 
@@ -704,7 +745,15 @@ def _revert_version(retain: bool = False) -> None:
             # Reread pyproject.toml in case the substitutions affected it.
             pyproject = tomlkit.parse(state.path.read_bytes().decode("utf-8"))
 
-        pyproject["tool"]["poetry"]["version"] = state.original_version  # type: ignore
+        if state.mode == _Mode.Classic:
+            if state.original_version is not None:
+                pyproject["tool"]["poetry"]["version"] = state.original_version  # type: ignore
+        elif state.mode == _Mode.Pep621:
+            if state.dynamic_index is not None:
+                index = state.dynamic_index
+                pyproject["project"]["dynamic"].insert(index, "version")  # type: ignore
+            if "version" in pyproject["project"]:  # type: ignore
+                pyproject["project"].pop("version")  # type: ignore
 
         if not retain and not _state.cli_mode:
             pyproject["tool"]["poetry-dynamic-versioning"]["enable"] = True  # type: ignore

poetry_dynamic_versioning/patch.py

@@ -24,8 +24,6 @@ def alt_poetry_create(cls, *args, **kwargs):
 
         if not _state.cli_mode:
             name = _get_and_apply_version(
-                name=instance.local_config["name"],
-                original=instance.local_config["version"],
                 pyproject=instance.pyproject.data,
                 pyproject_path=_get_pyproject_path_from_poetry(instance.pyproject),
             )

poetry_dynamic_versioning/plugin.py

@@ -82,8 +82,6 @@ def _apply_version_via_plugin(
     # fmt: on
 ) -> None:
     name = _get_and_apply_version(
-        name=poetry.local_config["name"],
-        original=poetry.local_config["version"],
         pyproject=poetry.pyproject.data,
         pyproject_path=_get_pyproject_path_from_poetry(poetry.pyproject),
         retain=retain,

tests/project-pep621/project_pep621/__init__.py

@@ -0,0 +1 @@
+__version__ = "0.0.0"

tests/project-pep621/pyproject.toml

@@ -0,0 +1,15 @@
+[project]
+name = "project-pep621"
+dynamic = ["version"]
+
+[tool.poetry]
+# The plugin itself doesn't need this, but Poetry does:
+# https://github.com/python-poetry/poetry-core/blob/c80dcc53793316104862d2c3ac888dde3c263b08/tests/test_factory.py#L39-L42
+version = "0.0.0"
+
+[tool.poetry-dynamic-versioning]
+enable = true
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"

tests/test_integration.py

@@ -7,6 +7,7 @@
 from pathlib import Path
 from typing import Optional, Sequence, Tuple
 
+import dunamai
 import pytest
 import tomlkit
 
@@ -16,6 +17,10 @@
 DUMMY_DIST = DUMMY / "dist"
 DUMMY_PYPROJECT = DUMMY / "pyproject.toml"
 
+DUMMY_PEP621 = ROOT / "tests" / "project-pep621"
+DUMMY_PEP621_DIST = DUMMY_PEP621 / "dist"
+DUMMY_PEP621_PYPROJECT = DUMMY_PEP621 / "pyproject.toml"
+
 DUMMY_VERSION = "0.0.999"
 DEPENDENCY_DYNAMIC_VERSION = "0.0.888"
 
@@ -74,11 +79,12 @@ def before_all():
 
 @pytest.fixture(autouse=True)
 def before_each():
-    run(f"git checkout -- {DUMMY.as_posix()}")
-    delete(DUMMY / "dist")
-    delete(DUMMY / "poetry.lock")
-    for file in DUMMY.glob("*.whl"):
-        delete(file)
+    for project in [DUMMY, DUMMY_PEP621]:
+        run(f"git checkout -- {project.as_posix()}")
+        delete(project / "dist")
+        delete(project / "poetry.lock")
+        for file in project.glob("*.whl"):
+            delete(file)
 
 
 def test_plugin_enabled():
@@ -123,7 +129,10 @@ def test_invalid_config_for_vcs():
 def test_keep_pyproject_modifications():
     package = "cachy"
     # Using --optional to avoid actually installing the package
-    run(f"poetry add --optional {package}", where=DUMMY)
+    if "USE_PEP621" in os.environ:
+        run(f"poetry add --optional main {package}", where=DUMMY)
+    else:
+        run(f"poetry add --optional {package}", where=DUMMY)
     # Make sure pyproject.toml contains the new package dependency
     data = DUMMY_PYPROJECT.read_bytes().decode("utf-8")
     assert package in data
@@ -267,3 +276,46 @@ def test_plugin_show():
     # Just skip it for now.
     if "CI" not in os.environ:
         assert "poetry-dynamic-versioning" in out
+
+
+@pytest.mark.skipif("USE_PEP621" not in os.environ, reason="Requires Poetry with PEP-621 support")
+def test_pep621_with_dynamic_version():
+    version = dunamai.Version.from_git().serialize()
+
+    run("poetry-dynamic-versioning", where=DUMMY_PEP621)
+    pyproject = tomlkit.parse(DUMMY_PEP621_PYPROJECT.read_bytes().decode("utf-8"))
+    assert pyproject["project"]["version"] == version
+    assert "version" not in pyproject["project"]["dynamic"]
+    assert f'__version__ = "{version}"' in (
+        DUMMY_PEP621 / "project_pep621" / "__init__.py"
+    ).read_bytes().decode("utf-8")
+
+
+@pytest.mark.skipif("USE_PEP621" not in os.environ, reason="Requires Poetry with PEP-621 support")
+def test_pep621_with_dynamic_version_and_cleanup():
+    version = dunamai.Version.from_git().serialize()
+
+    run("poetry build", where=DUMMY_PEP621)
+    pyproject = tomlkit.parse(DUMMY_PEP621_PYPROJECT.read_bytes().decode("utf-8"))
+    assert "version" not in pyproject["project"]
+    assert "version" in pyproject["project"]["dynamic"]
+    assert '__version__ = "0.0.0"' in (
+        DUMMY_PEP621 / "project_pep621" / "__init__.py"
+    ).read_bytes().decode("utf-8")
+
+    artifact = next(DUMMY_PEP621_DIST.glob("*.whl"))
+    assert f"-{version}-" in artifact.name
+
+
+@pytest.mark.skipif("USE_PEP621" not in os.environ, reason="Requires Poetry with PEP-621 support")
+def test_pep621_without_dynamic_version():
+    pyproject = tomlkit.parse(DUMMY_PEP621_PYPROJECT.read_bytes().decode("utf-8"))
+    pyproject["project"]["dynamic"] = []
+    DUMMY_PEP621_PYPROJECT.write_bytes(tomlkit.dumps(pyproject).encode("utf-8"))
+
+    run("poetry-dynamic-versioning", codes=[1], where=DUMMY_PEP621)
+    pyproject = tomlkit.parse(DUMMY_PEP621_PYPROJECT.read_bytes().decode("utf-8"))
+    assert "version" not in pyproject["project"]
+    assert '__version__ = "0.0.0"' in (
+        DUMMY_PEP621 / "project_pep621" / "__init__.py"
+    ).read_bytes().decode("utf-8")