ci: better checks

Author: boromir674

tox.ini

@@ -139,8 +139,10 @@ passenv =
 deps = twine >6.0, <7.0
 skip_install = true
 commands_pre =
-    # check whether the distribution’s long description will render correctly on PyPI
-    ; twine check {env:DIST_DIR}/software[\-_]patterns-{env:PACKAGE_DIST_VERSION:}*
+    python -c 'import os; n = "TWINE_USERNAME"; v = os.environ.get(n); exec("if not v:\n    print(\"Please set the \" + str(n) + \" variable.\")\n    exit(1)");'
+    python -c 'import os; n = "TWINE_PASSWORD"; v = os.environ.get(n); exec("if not v:\n    print(\"Please set the \" + str(n) + \" variable.\")\n    exit(1)");'
+    python -c 'import os; n = "PACKAGE_DIST_VERSION"; v = os.environ.get(n); exec("if not v:\n    print(\"Please set the \" + str(n) + \" variable.\")\n    exit(1)");'
+    python -c 'import os; n = "PYPI_SERVER"; exec("if n in os.environ:\n    v = os.environ[n]\n    if v != \"pypi\":\n        print(\"Environment variable PYPI_SERVER detected, but was not set to pypi. Please set to pypi or run tox -e deploy from an environment where the PYPI_SERVER variable is NOT present at all.\")\n        exit(1)");'
     twine check {env:DIST_DIR}/{env:PY_PACKAGE}-{env:PACKAGE_DIST_VERSION:}*
 commands =
     twine {posargs:upload --non-interactive} --repository {env:PYPI_SERVER:testpypi --skip-existing} {env:DIST_DIR}/{env:PY_PACKAGE}-{env:PACKAGE_DIST_VERSION}* --verbose