esp-idf/tools/ci/check_soc_headers_leak.py

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3.7 KiB
Python
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# SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
# This check script is used to ensure the public APIs won't expose the unstable soc files like register files
# public API header files are those taken by doxygen and have full documented docs
import fnmatch
import os
import re
import sys
import typing
from string import Template
# The following header files in soc component is treated as stable, so is allowed to be used in any public header files
allowed_soc_headers = (
'soc/soc_caps.h',
'soc/reset_reasons.h',
'soc/reg_base.h',
'soc/clk_tree_defs.h',
)
include_header_pattern = re.compile(r'[\s]*#[\s]*include ["<](.*)[">].*')
doxyfile_target_pattern = re.compile(r'Doxyfile_(.*)')
class PublicAPIVisits:
def __init__(self, doxyfile_path: str, idf_path: str, target: str) -> None:
self.doxyfile_path = doxyfile_path
self._target = target
self._idf_path = idf_path
def __iter__(self) -> typing.Generator:
with open(self.doxyfile_path, 'r', encoding='utf8') as f:
for line in f:
line = line.strip()
if line.startswith('$(PROJECT_PATH)'):
# $(PROJECT_PATH)/components/soc/$(IDF_TARGET)/include/soc/uart_channel.h \
# -> ${PROJECT_PATH}/components/soc/${IDF_TARGET}/include/soc/uart_channel.h
line = line.replace('(', '{').replace(')', '}').rstrip('\\ ')
file_path = Template(line).substitute(
PROJECT_PATH=self._idf_path, IDF_TARGET=self._target
)
yield file_path
def check_soc_not_in(
idf_path: str,
target: str,
doxyfile_path: str,
violation_dict: typing.Dict[str, set],
) -> None:
for file_path in PublicAPIVisits(
os.path.join(idf_path, doxyfile_path), idf_path, target
):
with open(file_path, 'r', encoding='utf8') as f:
for line in f:
match_data = re.match(include_header_pattern, line)
if match_data:
header = match_data.group(1)
if header.startswith('soc') and header not in allowed_soc_headers:
if file_path not in violation_dict:
violation_dict[file_path] = set()
violation_dict[file_path].add(header)
def main() -> None:
idf_path = os.environ.get('IDF_PATH', None)
if idf_path is None:
print('IDF_PATH must be set before running this script', file=sys.stderr)
sys.exit(1)
# list all doxyfiles
doxyfiles = fnmatch.filter(
os.listdir(os.path.join(idf_path, 'docs/doxygen')), 'Doxyfile*'
)
print(f'Found Doxyfiles:{doxyfiles}')
# targets are judged from Doxyfile name
targets = []
for file in doxyfiles:
res = doxyfile_target_pattern.match(file)
if res:
targets.append(res.group(1))
if not targets:
print('No targets found', file=sys.stderr)
sys.exit(1)
soc_violation_dict: typing.Dict[str, set] = {}
for target in targets:
check_soc_not_in(
idf_path,
target,
os.path.join(idf_path, 'docs/doxygen/Doxyfile'),
soc_violation_dict,
)
check_soc_not_in(
idf_path,
target,
os.path.join(idf_path, f'docs/doxygen/Doxyfile_{target}'),
soc_violation_dict,
)
if len(soc_violation_dict) > 0:
for file_path, headers_set in soc_violation_dict.items():
print(f'{file_path} includes non-public soc header file: {headers_set}')
sys.exit(1)
else:
print('No violation found')
if __name__ == '__main__':
main()