chore: extract glob for pyupgrade to separate script for cross-platform compatibility

'sh' in tox.ini does not work on Windows in PowerShell.

Signed-off-by: Peter Schuster <p.schuster@pilz.de>

Author: peschuster

tools/run_pyupgrade.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+# This file is a cross platform wrapper for pyupgrade to pass a list of all files with relevant extension to pyupgrade.
+
+import sys
+from pathlib import Path
+
+from pyupgrade._main import main
+
+files = sorted({
+    str(p)
+    for d in ['cyclonedx', 'typings', 'tests', 'tools', 'examples']
+    for ext in ['*.py', '*.pyi']
+    for p in Path(d).rglob(ext)
+})
+
+sys.argv = [sys.argv[0], '--py39-plus', *sys.argv[1:], *files]
+main()

tox.ini

@@ -52,10 +52,7 @@ commands =
     poetry run deptry -v .
 
 [testenv:pyupgrade]
-allowlist_externals = poetry, sh
-commands = sh -c "\
-    find cyclonedx typings tests tools examples -type f \( -name '*.py' -or -name '*.pyi' \) -print0 \
-    | xargs -0 poetry run pyupgrade --py39-plus {posargs} "
+commands = poetry run python tools/run_pyupgrade.py {posargs}
 
 [testenv:isort]
 commands = poetry run isort .