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#
# 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 --twister-out <filename> an argument file for twister script will
be generated which would point to test and sample roots available in modules
that can be included during a twister run. This allows testing code
maintained in modules in addition to what is available in the main Zephyr tree.
'''
import argparse
import hashlib
import os
import re
import subprocess
import sys
import yaml
import pykwalify.core
from pathlib import Path, PurePath
from collections import namedtuple
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:
name:
required: false
type: str
build:
required: false
type: map
mapping:
cmake:
required: false
type: str
kconfig:
required: false
type: str
cmake-ext:
required: false
type: bool
default: false
kconfig-ext:
required: false
type: bool
default: false
sysbuild-cmake:
required: false
type: str
sysbuild-kconfig:
required: false
type: str
sysbuild-cmake-ext:
required: false
type: bool
default: false
sysbuild-kconfig-ext:
required: false
type: bool
default: false
depends:
required: false
type: seq
sequence:
- type: str
settings:
required: false
type: map
mapping:
board_root:
required: false
type: str
dts_root:
required: false
type: str
snippet_root:
required: false
type: str
soc_root:
required: false
type: str
arch_root:
required: false
type: str
module_ext_root:
required: false
type: str
sca_root:
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
blobs:
required: false
type: seq
sequence:
- type: map
mapping:
path:
required: true
type: str
sha256:
required: true
type: str
type:
required: true
type: str
enum: ['img', 'lib']
version:
required: true
type: str
license-path:
required: true
type: str
url:
required: true
type: str
description:
required: true
type: str
doc-url:
required: false
type: str
'''
MODULE_YML_PATH = PurePath('zephyr/module.yml')
# Path to the blobs folder
MODULE_BLOBS_PATH = PurePath('zephyr/blobs')
BLOB_PRESENT = 'A'
BLOB_NOT_PRESENT = 'D'
BLOB_OUTDATED = 'M'
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 = Path(module_path) / setting / filename
else:
checkfile = Path(module_path) / setting
if not checkfile.resolve().is_file():
return False
return True
def process_module(module):
module_path = PurePath(module)
# The input is a module if zephyr/module.{yml,yaml} is a valid yaml file
# or if both zephyr/CMakeLists.txt and zephyr/Kconfig are present.
for module_yml in [module_path / MODULE_YML_PATH,
module_path / MODULE_YML_PATH.with_suffix('.yaml')]:
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))
meta['name'] = meta.get('name', module_path.name)
meta['name-sanitized'] = re.sub('[^a-zA-Z0-9]', '_', meta['name'])
return meta
if Path(module_path.joinpath('zephyr/CMakeLists.txt')).is_file() and \
Path(module_path.joinpath('zephyr/Kconfig')).is_file():
return {'name': module_path.name,
'name-sanitized': re.sub('[^a-zA-Z0-9]', '_', module_path.name),
'build': {'cmake': 'zephyr', 'kconfig': 'zephyr/Kconfig'}}
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_extern = section.get('cmake-ext', False)
if cmake_extern:
return('\"{}\":\"{}\":\"{}\"\n'
.format(meta['name'],
module_path.as_posix(),
"${ZEPHYR_" + meta['name-sanitized'].upper() + "_CMAKE_DIR}"))
cmake_setting = section.get('cmake', None)
if not validate_setting(cmake_setting, module, 'CMakeLists.txt'):
sys.exit('ERROR: "cmake" key in {} has folder value "{}" which '
'does not contain a CMakeLists.txt file.'
.format(module_yml.as_posix(), cmake_setting))
cmake_path = os.path.join(module, cmake_setting or 'zephyr')
cmake_file = os.path.join(cmake_path, 'CMakeLists.txt')
if os.path.isfile(cmake_file):
return('\"{}\":\"{}\":\"{}\"\n'
.format(meta['name'],
module_path.as_posix(),
Path(cmake_path).resolve().as_posix()))
else:
return('\"{}\":\"{}\":\"\"\n'
.format(meta['name'],
module_path.as_posix()))
def process_sysbuildcmake(module, meta):
section = meta.get('build', dict())
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
cmake_extern = section.get('sysbuild-cmake-ext', False)
if cmake_extern:
return('\"{}\":\"{}\":\"{}\"\n'
.format(meta['name'],
module_path.as_posix(),
"${SYSBUILD_" + meta['name-sanitized'].upper() + "_CMAKE_DIR}"))
cmake_setting = section.get('sysbuild-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))
if cmake_setting is None:
return ""
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(meta['name'],
module_path.as_posix(),
Path(cmake_path).resolve().as_posix()))
else:
return('\"{}\":\"{}\":\"\"\n'
.format(meta['name'],
module_path.as_posix()))
def process_settings(module, meta):
section = meta.get('build', dict())
build_settings = section.get('settings', None)
out_text = ""
if build_settings is not None:
for root in ['board', 'dts', 'snippet', 'soc', 'arch', 'module_ext', 'sca']:
setting = build_settings.get(root+'_root', None)
if setting is not None:
root_path = PurePath(module) / setting
out_text += f'"{root.upper()}_ROOT":'
out_text += f'"{root_path.as_posix()}"\n'
return out_text
def get_blob_status(path, sha256):
if not path.is_file():
return BLOB_NOT_PRESENT
with path.open('rb') as f:
m = hashlib.sha256()
m.update(f.read())
if sha256.lower() == m.hexdigest():
return BLOB_PRESENT
else:
return BLOB_OUTDATED
def process_blobs(module, meta):
blobs = []
mblobs = meta.get('blobs', None)
if not mblobs:
return blobs
blobs_path = Path(module) / MODULE_BLOBS_PATH
for blob in mblobs:
blob['module'] = meta.get('name', None)
blob['abspath'] = blobs_path / Path(blob['path'])
blob['status'] = get_blob_status(blob['abspath'], blob['sha256'])
blobs.append(blob)
return blobs
def kconfig_snippet(meta, path, kconfig_file=None, blobs=False, sysbuild=False):
name = meta['name']
name_sanitized = meta['name-sanitized']
snippet = [f'menu "{name} ({path.as_posix()})"',
f'osource "{kconfig_file.resolve().as_posix()}"' if kconfig_file
else f'osource "$(SYSBUILD_{name_sanitized.upper()}_KCONFIG)"' if sysbuild is True
else f'osource "$(ZEPHYR_{name_sanitized.upper()}_KCONFIG)"',
f'config ZEPHYR_{name_sanitized.upper()}_MODULE',
' bool',
' default y',
'endmenu\n']
if blobs:
snippet.insert(-1, ' select TAINT_BLOBS')
return '\n'.join(snippet)
def process_kconfig(module, meta):
blobs = process_blobs(module, meta)
taint_blobs = len(tuple(filter(lambda b: b['status'] != 'D', blobs))) != 0
section = meta.get('build', dict())
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
kconfig_extern = section.get('kconfig-ext', False)
if kconfig_extern:
return kconfig_snippet(meta, module_path, blobs=taint_blobs)
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 kconfig_snippet(meta, module_path, Path(kconfig_file),
blobs=taint_blobs)
else:
name_sanitized = meta['name-sanitized']
return (f'config ZEPHYR_{name_sanitized.upper()}_MODULE\n'
f' bool\n'
f' default y\n')
def process_sysbuildkconfig(module, meta):
section = meta.get('build', dict())
module_path = PurePath(module)
module_yml = module_path.joinpath('zephyr/module.yml')
kconfig_extern = section.get('sysbuild-kconfig-ext', False)
if kconfig_extern:
return kconfig_snippet(meta, module_path, sysbuild=True)
kconfig_setting = section.get('sysbuild-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))
if kconfig_setting is None:
return ""
kconfig_file = os.path.join(module, kconfig_setting)
if os.path.isfile(kconfig_file):
return kconfig_snippet(meta, module_path, Path(kconfig_file))
else:
return ""
def process_twister(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 process_meta(zephyr_base, west_projs, modules, extra_modules=None,
propagate_state=False):
# Process zephyr_base, projects, and modules and create a dictionary
# with meta information for each input.
#
# The dictionary will contain meta info in the following lists:
# - zephyr: path and revision
# - modules: name, path, and revision
# - west-projects: path and revision
#
# returns the dictionary with said lists
meta = {'zephyr': None, 'modules': None, 'workspace': None}
workspace_dirty = False
workspace_extra = extra_modules is not None
workspace_off = False
def git_revision(path):
rc = subprocess.Popen(['git', 'rev-parse', '--is-inside-work-tree'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=path).wait()
if rc == 0:
# A git repo.
popen = subprocess.Popen(['git', 'rev-parse', 'HEAD'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=path)
stdout, stderr = popen.communicate()
stdout = stdout.decode('utf-8')
if not (popen.returncode or stderr):
revision = stdout.rstrip()
rc = subprocess.Popen(['git', 'diff-index', '--quiet', 'HEAD',
'--'],
stdout=None,
stderr=None,
cwd=path).wait()
if rc:
return revision + '-dirty', True
return revision, False
return None, False
zephyr_revision, zephyr_dirty = git_revision(zephyr_base)
zephyr_project = {'path': zephyr_base,
'revision': zephyr_revision}
meta['zephyr'] = zephyr_project
meta['workspace'] = {}
workspace_dirty |= zephyr_dirty
if west_projs is not None:
from west.manifest import MANIFEST_REV_BRANCH
projects = west_projs['projects']
meta_projects = []
# Special treatment of manifest project.
manifest_proj_path = PurePath(projects[0].posixpath).as_posix()
manifest_revision, manifest_dirty = git_revision(manifest_proj_path)
workspace_dirty |= manifest_dirty
manifest_project = {'path': manifest_proj_path,
'revision': manifest_revision}
meta_projects.append(manifest_project)
for project in projects[1:]:
project_path = PurePath(project.posixpath).as_posix()
revision, dirty = git_revision(project_path)
workspace_dirty |= dirty
if project.sha(MANIFEST_REV_BRANCH) != revision:
revision += '-off'
workspace_off = True
meta_project = {'path': project_path,
'revision': revision}
meta_projects.append(meta_project)
meta.update({'west': {'manifest': west_projs['manifest_path'],
'projects': meta_projects}})
meta['workspace'].update({'off': workspace_off})
meta_projects = []
for module in modules:
module_path = PurePath(module.project).as_posix()
revision, dirty = git_revision(module_path)
workspace_dirty |= dirty
meta_project = {'name': module.meta['name'],
'path': module_path,
'revision': revision}
meta_projects.append(meta_project)
meta['modules'] = meta_projects
meta['workspace'].update({'dirty': workspace_dirty,
'extra': workspace_extra})
if propagate_state:
if workspace_dirty and not zephyr_dirty:
zephyr_revision += '-dirty'
if workspace_extra:
zephyr_revision += '-extra'
if workspace_off:
zephyr_revision += '-off'
zephyr_project.update({'revision': zephyr_revision})
if west_projs is not None:
if workspace_dirty and not manifest_dirty:
manifest_revision += '-dirty'
if workspace_extra:
manifest_revision += '-extra'
if workspace_off:
manifest_revision += '-off'
manifest_project.update({'revision': manifest_revision})
return meta
def west_projects(manifest = None):
manifest_path = None
projects = []
# West is imported here, as it is optional
# (and thus maybe not installed)
# if user is providing a specific modules list.
try:
from west.manifest import Manifest
except ImportError:
# West is not installed, so don't return any projects.
return None
# If west *is* installed, we need all of the following imports to
# work. West versions that are excessively old may fail here:
# west.configuration.MalformedConfig was
# west.manifest.MalformedConfig until west v0.14.0, for example.
# These should be hard errors.
from west.manifest import \
ManifestImportFailed, MalformedManifest, ManifestVersionError
from west.configuration import MalformedConfig
from west.util import WestNotFound
from west.version import __version__ as WestVersion
from packaging import version
try:
if not manifest:
manifest = Manifest.from_file()
if version.parse(WestVersion) >= version.parse('0.9.0'):
projects = [p for p in manifest.get_projects([])
if manifest.is_active(p)]
else:
projects = manifest.get_projects([])
manifest_path = manifest.path
return {'manifest_path': manifest_path, 'projects': projects}
except (ManifestImportFailed, MalformedManifest,
ManifestVersionError, MalformedConfig) as e:
sys.exit(f'ERROR: {e}')
except WestNotFound:
# Only accept WestNotFound, meaning we are not in a west
# workspace. Such setup is allowed, as west may be installed
# but the project is not required to use west.
pass
return None
def parse_modules(zephyr_base, manifest=None, west_projs=None, modules=None,
extra_modules=None):
if modules is None:
west_projs = west_projs or west_projects(manifest)
modules = ([p.posixpath for p in west_projs['projects']]
if west_projs else [])
if extra_modules is None:
extra_modules = []
Module = namedtuple('Module', ['project', 'meta', 'depends'])
all_modules_by_name = {}
# dep_modules is a list of all modules that has an unresolved dependency
dep_modules = []
# start_modules is a list modules with no depends left (no incoming edge)
start_modules = []
# sorted_modules is a topological sorted list of the modules
sorted_modules = []
for project in modules + extra_modules:
# Avoid including Zephyr base project as module.
if project == zephyr_base:
continue
meta = process_module(project)
if meta:
depends = meta.get('build', {}).get('depends', [])
all_modules_by_name[meta['name']] = Module(project, meta, depends)
elif project in extra_modules:
sys.exit(f'{project}, given in ZEPHYR_EXTRA_MODULES, '
'is not a valid zephyr module')
for module in all_modules_by_name.values():
if not module.depends:
start_modules.append(module)
else:
dep_modules.append(module)
# This will do a topological sort to ensure the modules are ordered
# according to dependency settings.
while start_modules:
node = start_modules.pop(0)
sorted_modules.append(node)
node_name = node.meta['name']
to_remove = []
for module in dep_modules:
if node_name in module.depends:
module.depends.remove(node_name)
if not module.depends:
start_modules.append(module)
to_remove.append(module)
for module in to_remove:
dep_modules.remove(module)
if dep_modules:
# If there are any modules with unresolved dependencies, then the
# modules contains unmet or cyclic dependencies. Error out.
error = 'Unmet or cyclic dependencies in modules:\n'
for module in dep_modules:
error += f'{module.project} depends on: {module.depends}\n'
sys.exit(error)
return sorted_modules
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''', allow_abbrev=False)
parser.add_argument('--kconfig-out',
help="""File to write with resulting KConfig import
statements.""")
parser.add_argument('--twister-out',
help="""File to write with resulting twister
parameters.""")
parser.add_argument('--cmake-out',
help="""File to write with resulting <name>:<path>
values to use for including in CMake""")
parser.add_argument('--sysbuild-kconfig-out',
help="""File to write with resulting KConfig import
statements.""")
parser.add_argument('--sysbuild-cmake-out',
help="""File to write with resulting <name>:<path>
values to use for including in CMake""")
parser.add_argument('--meta-out',
help="""Write a build meta YaML file containing a list
of Zephyr modules and west projects.
If a module or project is also a git repository
the current SHA revision will also be written.""")
parser.add_argument('--meta-state-propagate', action='store_true',
help="""Propagate state of modules and west projects
to the suffix of the Zephyr SHA and if west is
used, to the suffix of the manifest SHA""")
parser.add_argument('--settings-out',
help="""File to write with resulting <name>:<value>
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('-z', '--zephyr-base',
help='Path to zephyr repository')
args = parser.parse_args()
kconfig = ""
cmake = ""
sysbuild_kconfig = ""
sysbuild_cmake = ""
settings = ""
twister = ""
west_projs = west_projects()
modules = parse_modules(args.zephyr_base, None, west_projs,
args.modules, args.extra_modules)
for module in modules:
kconfig += process_kconfig(module.project, module.meta)
cmake += process_cmake(module.project, module.meta)
sysbuild_kconfig += process_sysbuildkconfig(module.project, module.meta)
sysbuild_cmake += process_sysbuildcmake(module.project, module.meta)
settings += process_settings(module.project, module.meta)
twister += process_twister(module.project, module.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.sysbuild_kconfig_out:
with open(args.sysbuild_kconfig_out, 'w', encoding="utf-8") as fp:
fp.write(sysbuild_kconfig)
if args.sysbuild_cmake_out:
with open(args.sysbuild_cmake_out, 'w', encoding="utf-8") as fp:
fp.write(sysbuild_cmake)
if args.settings_out:
with open(args.settings_out, 'w', encoding="utf-8") as fp:
fp.write('''\
# WARNING. THIS FILE IS AUTO-GENERATED. DO NOT MODIFY!
#
# This file contains build system settings derived from your modules.
#
# Modules may be set via ZEPHYR_MODULES, ZEPHYR_EXTRA_MODULES,
# and/or the west manifest file.
#
# See the Modules guide for more information.
''')
fp.write(settings)
if args.twister_out:
with open(args.twister_out, 'w', encoding="utf-8") as fp:
fp.write(twister)
if args.meta_out:
meta = process_meta(args.zephyr_base, west_projs, modules,
args.extra_modules, args.meta_state_propagate)
with open(args.meta_out, 'w', encoding="utf-8") as fp:
fp.write(yaml.dump(meta))
if __name__ == "__main__":
main()
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