Switch to 1% static packaging configuration (#998)

* Switch to 1% static packaging configuration

* Add shim for @pganssle

* Not worth interpolation

* Kill extra line

.gitignore

@@ -1,5 +1,6 @@
 *.egg-info
 *.pyc
+.DS_Store
 .cache
 .coverage*
 .direnv
@@ -13,5 +14,4 @@ build
 dist
 docs/_build/
 htmlcov
-pip-wheel-metadata
-tmp
+tmp*

pyproject.toml

@@ -1,8 +1,17 @@
+# SPDX-License-Identifier: MIT
+
 [build-system]
 requires = ["setuptools>=40.6.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 
+[tool.pytest.ini_options]
+addopts = ["-ra", "--strict-markers", "--strict-config"]
+xfail_strict = true
+testpaths = "tests"
+filterwarnings = ["once::Warning", "ignore:::pympler[.*]"]
+
+
 [tool.coverage.run]
 parallel = true
 branch = true
@@ -25,6 +34,10 @@ exclude_lines = [
 line-length = 79
 
 
+[tool.isort]
+profile = "attrs"
+
+
 [tool.interrogate]
 verbose = 2
 fail-under = 100
@@ -35,37 +48,32 @@ whitelist-regex = ["test_.*"]
 toplevel = ["attr", "attrs"]
 
 
-[tool.isort]
-profile = "attrs"
-
-
 [tool.towncrier]
-    package = "attr"
-    package_dir = "src"
-    filename = "CHANGELOG.rst"
-    template = "changelog.d/towncrier_template.rst"
-    issue_format = "`#{issue} <https://github.com/python-attrs/attrs/issues/{issue}>`_"
-    directory = "changelog.d"
-    title_format = "{version} ({project_date})"
-    underlines = ["-", "^"]
+name = "attrs"
+filename = "CHANGELOG.rst"
+template = "changelog.d/towncrier_template.rst"
+issue_format = "`#{issue} <https://github.com/python-attrs/attrs/issues/{issue}>`_"
+directory = "changelog.d"
+title_format = "{version} ({project_date})"
+underlines = ["-", "^"]
 
-    [[tool.towncrier.section]]
-        path = ""
+[[tool.towncrier.section]]
+path = ""
 
-    [[tool.towncrier.type]]
-        directory = "breaking"
-        name = "Backwards-incompatible Changes"
-        showcontent = true
+[[tool.towncrier.type]]
+directory = "breaking"
+name = "Backwards-incompatible Changes"
+showcontent = true
 
-    [[tool.towncrier.type]]
-        directory = "deprecation"
-        name = "Deprecations"
-        showcontent = true
+[[tool.towncrier.type]]
+directory = "deprecation"
+name = "Deprecations"
+showcontent = true
 
-    [[tool.towncrier.type]]
-        directory = "change"
-        name = "Changes"
-        showcontent = true
+[[tool.towncrier.type]]
+directory = "change"
+name = "Changes"
+showcontent = true
 
 
 [tool.mypy]

setup.py

@@ -2,7 +2,6 @@
 
 import codecs
 import os
-import platform
 import re
 
 from setuptools import find_packages, setup
@@ -45,25 +44,27 @@ CLASSIFIERS = [
 INSTALL_REQUIRES = []
 EXTRAS_REQUIRE = {
     "docs": ["furo", "sphinx", "zope.interface", "sphinx-notfound-page"],
-    "tests_no_zope": [
+    "tests-no-zope": [
         # For regression test to ensure cloudpickle compat doesn't break.
         'cloudpickle; python_implementation == "CPython"',
-        # 5.0 introduced toml; parallel was broken until 5.0.2
-        "coverage[toml]>=5.0.2",
         "hypothesis",
         "pympler",
-        "pytest>=4.3.0",  # 4.3.0 dropped last use of `convert`
+        # 4.3.0 dropped last use of `convert`
+        "pytest>=4.3.0",
+        # Since the mypy error messages keep changing, we have to keep updating
+        # this pin.
+        "mypy>=0.971; python_implementation == 'CPython'",
+        "pytest-mypy-plugins; python_implementation == 'CPython'",
     ],
+    "tests": {
+        "attrs[tests-no-zope]",
+        "zope.interface",
+    },
+    "dev": {"attrs[tests,docs]": ["pre-commit"]},
 }
-if platform.python_implementation() != "PyPy":
-    EXTRAS_REQUIRE["tests_no_zope"].extend(
-        ["mypy>=0.900,!=0.940", "pytest-mypy-plugins"]
-    )
+# Don't break Paul unnecessarily just yet. C.f. #685
+EXTRAS_REQUIRE["tests_no_zope"] = EXTRAS_REQUIRE["tests-no-zope"]
 
-EXTRAS_REQUIRE["tests"] = EXTRAS_REQUIRE["tests_no_zope"] + ["zope.interface"]
-EXTRAS_REQUIRE["dev"] = (
-    EXTRAS_REQUIRE["tests"] + EXTRAS_REQUIRE["docs"] + ["pre-commit"]
-)
 
 ###############################################################################
 

tox.ini

@@ -41,17 +41,18 @@ commands = python -m pytest {posargs}
 
 [testenv:py36]
 extras = tests
+deps = coverage[toml]
 commands = coverage run -m pytest {posargs}
 
 
 [testenv:py310]
 # Python 3.6+ has a number of compile-time warnings on invalid string escapes.
 # PYTHONWARNINGS=d and --no-compile below make them visible during the Tox run.
-basepython = python3.10
 install_command = pip install --no-compile {opts} {packages}
 setenv =
     PYTHONWARNINGS=d
 extras = tests
+deps = coverage[toml]
 commands = coverage run -m pytest {posargs}
 
 
@@ -59,7 +60,7 @@ commands = coverage run -m pytest {posargs}
 basepython = python3.10
 depends = py36,py310
 skip_install = true
-deps = coverage[toml]>=5.4
+deps = coverage[toml]
 commands =
     coverage combine
     coverage report
@@ -68,11 +69,9 @@ commands =
 [testenv:pre-commit]
 basepython = python3.10
 skip_install = true
-deps =
-    pre-commit
+deps = pre-commit
 passenv = HOMEPATH  # needed on Windows
-commands =
-    pre-commit run --all-files
+commands = pre-commit run --all-files
 
 
 [testenv:manifest]
@@ -97,7 +96,7 @@ commands =
 basepython = python3.8
 deps = towncrier
 skip_install = true
-commands = towncrier --draft
+commands = towncrier build --version UNRELEASED --draft
 
 
 [testenv:typing]