Added submodule contents into tree

externals/mbedtls/tests/scripts/check-python-files.sh

@@ -0,0 +1,68 @@
+#! /usr/bin/env sh
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+# Purpose: check Python files for potential programming errors or maintenance
+# hurdles. Run pylint to detect some potential mistakes and enforce PEP8
+# coding standards. Run mypy to perform static type checking.
+
+# We'll keep going on errors and report the status at the end.
+ret=0
+
+if type python3 >/dev/null 2>/dev/null; then
+    PYTHON=python3
+else
+    PYTHON=python
+fi
+
+check_version () {
+    $PYTHON - "$2" <<EOF
+import packaging.version
+import sys
+import $1 as package
+actual = package.__version__
+wanted = sys.argv[1]
+if packaging.version.parse(actual) < packaging.version.parse(wanted):
+    sys.stderr.write("$1: version %s is too old (want %s)\n" % (actual, wanted))
+    exit(1)
+EOF
+}
+
+can_pylint () {
+    # Pylint 1.5.2 from Ubuntu 16.04 is too old:
+    #     E: 34, 0: Unable to import 'mbedtls_dev' (import-error)
+    # Pylint 1.8.3 from Ubuntu 18.04 passed on the first commit containing this line.
+    check_version pylint 1.8.3
+}
+
+can_mypy () {
+    # mypy 0.770 is too old:
+    #     tests/scripts/test_psa_constant_names.py:34: error: Cannot find implementation or library stub for module named 'mbedtls_dev'
+    # mypy 0.780 from pip passed on the first commit containing this line.
+    check_version mypy.version 0.780
+}
+
+# With just a --can-xxx option, check whether the tool for xxx is available
+# with an acceptable version, and exit without running any checks. The exit
+# status is true if the tool is available and acceptable and false otherwise.
+if [ "$1" = "--can-pylint" ]; then
+    can_pylint
+    exit
+elif [ "$1" = "--can-mypy" ]; then
+    can_mypy
+    exit
+fi
+
+echo 'Running pylint ...'
+$PYTHON -m pylint scripts/mbedtls_dev/*.py scripts/*.py tests/scripts/*.py || {
+    echo >&2 "pylint reported errors"
+    ret=1
+}
+
+echo
+echo 'Running mypy ...'
+$PYTHON -m mypy scripts/*.py tests/scripts/*.py ||
+  ret=1
+
+exit $ret