migrate to pyproject.toml tooling

pyproject.toml

@@ -1,11 +1,30 @@
 [build-system]
 requires = [
   # sync with setup.py until we discard non-pep-517/518
-  "setuptools>=45.0",
-  "setuptools-scm[toml]>=6.2.3",
+  "setuptools>=65.0",
+  "setuptools-scm[toml]>=8.0",
 ]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "pluggy"
+license = {text = "MIT"}
+authors = [{name = "Holger Krekel", email = "[email protected]"}]
+classifiers = ["Development Status :: 6 - Mature", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Operating System :: POSIX", "Operating System :: Microsoft :: Windows", "Operating System :: MacOS :: MacOS X", "Topic :: Software Development :: Testing", "Topic :: Software Development :: Libraries", "Topic :: Utilities", "Programming Language :: Python :: Implementation :: CPython", "Programming Language :: Python :: Implementation :: PyPy", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3 :: Only", "Programming Language :: Python :: 3.8", "Programming Language :: Python :: 3.9", "Programming Language :: Python :: 3.10", "Programming Language :: Python :: 3.11"]
+description = "plugin and hook calling mechanisms for python"
+readme = {file = "README.rst", content-type = "text/x-rst"}
+requires-python = ">=3.8"
+
+dynamic = ["version"]
+[project.optional-dependencies]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
+[tool.setuptools]
+packages = ["pluggy"]
+package-dir =  {""="src"}
+package-data = {"pluggy" = ["py.typed"]}
+
 
 [tool.ruff.lint]
 select = [
@@ -21,7 +40,7 @@ known-local-folder = ["pluggy"]
 lines-after-imports = 2
 
 [tool.setuptools_scm]
-write_to = "src/pluggy/_version.py"
+version_file = "src/pluggy/_version.py"
 
 [tool.towncrier]
 package = "pluggy"

tox.ini

@@ -31,7 +31,7 @@ commands =
   sphinx-build -W -b html {toxinidir}/docs {toxinidir}/build/html-docs -t changelog_towncrier_draft {posargs:}
 
 [pytest]
-minversion=2.0
+minversion=8.0
 testpaths = testing
 #--pyargs --doctest-modules --ignore=.tox
 addopts=-r a
@@ -40,6 +40,7 @@ filterwarnings =
 
 [flake8]
 max-line-length=99
+min-python-version = 3.8
 
 [testenv:release]
 description = do a release, required posarg of the version number