mbedtls/scripts/generate_driver_wrappers.py
Archana 4a9e02632a
Review comments addressed
* Updated the default argument to create less noise with argument
  passing.
* Reworded ChangeLog to match MbedTLS documentation/ announcement
  requirements

Signed-off-by: Archana <archana.madhavan@silabs.com>
2021-12-19 13:37:37 +05:30

76 lines
2.5 KiB
Python
Executable File

#!/usr/bin/env python3
"""Generate library/psa_crypto_driver_wrappers.c
This module is invoked by the build sripts to auto generate the
psa_crypto_driver_wrappers.c based on template files in
script/data_files/driver_templates/.
"""
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
import os
import argparse
import jinja2
from mbedtls_dev import build_tree
def render(template_path: str) -> str:
"""
Render template from the input file.
"""
environment = jinja2.Environment(
loader=jinja2.FileSystemLoader(os.path.dirname(template_path)),
keep_trailing_newline=True)
template = environment.get_template(os.path.basename(template_path))
return template.render()
def generate_driver_wrapper_file(mbedtls_root: str, output_dir: str) -> None:
"""
Generate the file psa_crypto_driver_wrapper.c.
"""
driver_wrapper_template_filename = \
os.path.join(mbedtls_root, \
"scripts/data_files/driver_templates/psa_crypto_driver_wrappers.c.jinja")
result = render(driver_wrapper_template_filename)
with open(os.path.join(output_dir, "psa_crypto_driver_wrappers.c"), 'w') as out_file:
out_file.write(result)
def main() -> int:
"""
Main with command line arguments.
"""
def_arg_mbedtls_root = build_tree.guess_mbedtls_root()
def_arg_output_dir = os.path.join(def_arg_mbedtls_root, 'library')
parser = argparse.ArgumentParser()
parser.add_argument('--mbedtls-root', nargs='?', default=def_arg_mbedtls_root,
help='root directory of mbedtls source code')
parser.add_argument('output_directory', nargs='?',
default=def_arg_output_dir, help='output file\'s location')
args = parser.parse_args()
mbedtls_root = os.path.abspath(args.mbedtls_root)
output_directory = args.output_directory
generate_driver_wrapper_file(mbedtls_root, output_directory)
return 0
if __name__ == '__main__':
sys.exit(main())