Various tox.ini improvements and cleanup

Be more explicit about when we do and don't install the project in
different testenvs by setting skip_install. This is currently
redundant, but a sensible safeguard in case the implicit behavior
from skipsdist and no usedevelop ever changes.

Use shutil.rmtree() in place of calling `rm` so that we won't need
an allowlist of executables outside the venv.

Switch to tox's {envpython} replacement macro rather than invoking
the interpreter by its assumed name, for improved portability.

Inherit {[testenv]deps} in the deps list for any testenv which needs
to extend it rather than duplicating its contents, for the sake of
maintainability.

Don't bother listing flake8 as an explicit dep in its testenv, since
the flake8-bugbear plugin will pull it in as a requirement anyway.

Update the DeprecationWarning comment about pyparsing now that the
fix is available in 3.0.8 (but still not updated where it's being
vendored).

diff --git a/tox.ini b/tox.ini
index e62c385..fddb29d 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -17,9 +17,8 @@ basepython = python3
 #   'language_level' not set, using 2 for now (Py2). This will change in a
 #   later release!" but this can't be matched by message because it has a comma
 # py311... pip._vendor.pyparsing.core and pkg_resources._vendor.pyparsing raise
-#   DeprecationWarning "module 'sre_constants' is deprecated" until a new
-#   release containing https://github.com/pyparsing/pyparsing/commit/3c03942 is
-#   vendored into pip and pkg_resources
+#   DeprecationWarning "module 'sre_constants' is deprecated" until
+#   pyparsing>=3.0.8 is vendored into pip and pkg_resources
 # py310... distutils.command.install raises DeprecationWarning "The
 #   distutils.sysconfig module is deprecated, use sysconfig instead" but this
 #   can't be matched by message because it contains a comma
@@ -58,11 +57,13 @@ deps = {toxinidir}
 
 [testenv:bandit]
 description = check for potential security risks in source code
+skip_install = True
 deps = bandit
 commands = bandit -r mudpy -x mudpy/tests {posargs}
 
 [testenv:codespell]
 description = find common spelling mistakes in code and documentation
+skip_install = True
 deps = codespell
 commands = codespell {posargs}
 
@@ -72,34 +73,32 @@ commands = mudpy {posargs}
 
 [testenv:dist]
 description = build release artifacts and check for conformance
-allowlist_externals = rm
+skip_install = True
 deps =
     build
     twine
 commands =
-    rm -fr {toxinidir}/dist
-    python -m build
+    {envpython} -c "import shutil; shutil.rmtree('{toxinidir}/dist', ignore_errors=True)"
+    {envpython} -m build
     twine check --strict {toxinidir}/dist/*
 
 [testenv:docs]
 # Build an sdist into a temporary location so we'll have AUTHORS and ChangeLog
 # files to include.
 description = generate hypertext documentation
-allowlist_externals = rm
 deps =
-    {toxinidir}
+    {[testenv]deps}
     build
     sphinx
 commands =
-    rm -fr {toxinidir}/doc/build
-    python -m build --outdir={toxinidir}/doc/build/dist --sdist
+    {envpython} -c "import shutil; shutil.rmtree('{toxinidir}/doc/build', ignore_errors=True)"
+    {envpython} -m build --outdir={toxinidir}/doc/build/dist --sdist
     sphinx-build -W -d doc/build/doctrees -b html doc/source/ doc/build/html
 
 [testenv:flake8]
 description = style checks and static analysis of source code
-deps =
-    flake8
-    flake8-bugbear
+skip_install = True
+deps = flake8-bugbear
 commands = flake8 {posargs}
 
 [testenv:selftest_config]
@@ -112,7 +111,7 @@ commands = mudpy_selftest etc/mudpy.yaml
 # them with the same style we enforce for those carried in the repository.
 description = test data files for correct syntax and formatting
 deps =
-    {toxinidir}
+    {[testenv]deps}
     yamllint
 commands =
     mudpy_selftest mudpy/tests/fixtures/test_daemon.yaml