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zephyr_module.py
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zephyr_module.py
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#!/usr/bin/env python3
#
# Copyright (c) 2019, Nordic Semiconductor ASA
#
# SPDX-License-Identifier: Apache-2.0
'''Tool for parsing a list of projects to determine if they are Zephyr
projects. If no projects are given then the output from `west list` will be
used as project list.
Include file is generated for Kconfig using --kconfig-out.
A <name>:<path> text file is generated for use with CMake using --cmake-out.
Using --sanitycheck-out <filename> an argument file for sanitycheck script will
be generated which would point to test and sample roots available in modules
that can be included during a sanitycheck run. This allows testing code
maintained in modules in addition to what is available in the main Zephyr tree.
'''
import argparse
import os
import sys
import yaml
import pykwalify.core
import subprocess
import re
from pathlib import Path, PurePath
METADATA_SCHEMA = '''
## A pykwalify schema for basic validation of the structure of a
## metadata YAML file.
##
# The zephyr/module.yml file is a simple list of key value pairs to be used by
# the build system.
type: map
mapping:
build:
required: false
type: map
mapping:
cmake:
required: false
type: str
kconfig:
required: false
type: str
tests:
required: false
type: seq
sequence:
- type: str
samples:
required: false
type: seq
sequence:
- type: str
boards:
required: false
type: seq
sequence:
- type: str
'''
schema = yaml.safe_load(METADATA_SCHEMA)
def validate_setting(setting, module_path, filename=None):
if setting is not None:
if filename is not None:
checkfile = os.path.join(module_path, setting, filename)
else:
checkfile = os.path.join(module_path, setting)
if not os.path.isfile(checkfile):
return False
return True
def process_module(module):
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
if Path(module_yml).is_file():
with Path(module_yml).open('r') as f:
meta = yaml.safe_load(f.read())
try:
pykwalify.core.Core(source_data=meta, schema_data=schema)\
.validate()
except pykwalify.errors.SchemaError as e:
sys.exit('ERROR: Malformed "build" section in file: {}\n{}'
.format(module_yml.as_posix(), e))
return meta
return None
def process_cmake(module, meta):
section = meta.get('build', dict())
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
cmake_setting = section.get('cmake', None)
if not validate_setting(cmake_setting, module, 'CMakeLists.txt'):
sys.exit('ERROR: "cmake" key in {} has folder value "{}" which '
'does not contain a CMakeLists.txt file.'
.format(module_yml.as_posix(), cmake_setting))
cmake_path = os.path.join(module, cmake_setting or 'zephyr')
cmake_file = os.path.join(cmake_path, 'CMakeLists.txt')
if os.path.isfile(cmake_file):
return('\"{}\":\"{}\"\n'
.format(module_path.name, Path(cmake_path).resolve().as_posix()))
else:
return ""
def process_kconfig(module, meta):
section = meta.get('build', dict())
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
kconfig_setting = section.get('kconfig', None)
if not validate_setting(kconfig_setting, module):
sys.exit('ERROR: "kconfig" key in {} has value "{}" which does '
'not point to a valid Kconfig file.'
.format(module_yml, kconfig_setting))
kconfig_file = os.path.join(module, kconfig_setting or 'zephyr/Kconfig')
if os.path.isfile(kconfig_file):
return 'osource "{}"\n\n'.format(Path(kconfig_file).resolve().as_posix())
else:
return ""
def process_sanitycheck(module, meta):
out = ""
tests = meta.get('tests', [])
samples = meta.get('samples', [])
boards = meta.get('boards', [])
for pth in tests + samples:
if pth:
dir = os.path.join(module, pth)
out += '-T\n{}\n'.format(PurePath(os.path.abspath(dir)).as_posix())
for pth in boards:
if pth:
dir = os.path.join(module, pth)
out += '--board-root\n{}\n'.format(PurePath(os.path.abspath(dir)).as_posix())
return out
def main():
parser = argparse.ArgumentParser(description='''
Process a list of projects and create Kconfig / CMake include files for
projects which are also a Zephyr module''')
parser.add_argument('--kconfig-out',
help="""File to write with resulting KConfig import
statements.""")
parser.add_argument('--sanitycheck-out',
help="""File to write with resulting sanitycheck parameters.""")
parser.add_argument('--cmake-out',
help="""File to write with resulting <name>:<path>
values to use for including in CMake""")
parser.add_argument('-m', '--modules', nargs='+',
help="""List of modules to parse instead of using `west
list`""")
parser.add_argument('-x', '--extra-modules', nargs='+',
help='List of extra modules to parse')
parser.add_argument('-w', '--west-path', default='west',
help='Path to west executable')
args = parser.parse_args()
if args.modules is None:
p = subprocess.Popen([args.west_path, 'list', '--format={posixpath}'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
out, err = p.communicate()
if p.returncode == 0:
projects = out.decode(sys.getdefaultencoding()).splitlines()
elif re.match((r'Error: .* is not in a west installation\.'
'|FATAL ERROR: no west installation found from .*'),
err.decode(sys.getdefaultencoding())):
# Only accept the error from bootstrapper in the event we are
# outside a west managed project.
projects = []
else:
print(err.decode(sys.getdefaultencoding()))
# A real error occurred, raise an exception
raise subprocess.CalledProcessError(cmd=p.args,
returncode=p.returncode)
else:
projects = args.modules
if args.extra_modules is not None:
projects += args.extra_modules
kconfig = ""
cmake = ""
sanitycheck = ""
for project in projects:
# Avoid including Zephyr base project as module.
if project == os.environ.get('ZEPHYR_BASE'):
continue
meta = process_module(project)
if meta:
kconfig += process_kconfig(project, meta)
cmake += process_cmake(project, meta)
sanitycheck += process_sanitycheck(project, meta)
if args.kconfig_out:
with open(args.kconfig_out, 'w', encoding="utf-8") as fp:
fp.write(kconfig)
if args.cmake_out:
with open(args.cmake_out, 'w', encoding="utf-8") as fp:
fp.write(cmake)
if args.sanitycheck_out:
with open(args.sanitycheck_out, 'w', encoding="utf-8") as fp:
fp.write(sanitycheck)
if __name__ == "__main__":
main()