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#!/usr/bin/env python3
# Copyright (c) 2021 Arm Limited. All rights reserved.
# 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.
# The script does effectively the same as "git submodule update --init" command.
import logging
import os
import sys
import tarfile
import tempfile
from urllib.request import urlopen
from zipfile import ZipFile
tf = "https://github.com/tensorflow/tflite-micro/archive/f510d38d0eaa3195ce3af66e3f32648740f08afb.zip"
cmsis = "https://github.com/ARM-software/CMSIS_5/archive/e9637de2b4cfd99cd5c93893d88593262d8660c1.zip"
ethos_u_core_sw = "https://git.mlplatform.org/ml/ethos-u/ethos-u-core-software.git/snapshot/ethos-u-core-software-8b1d9ded33ec59545897ff45019d05403dba7eee.tar.gz"
ethos_u_core_driver = "https://git.mlplatform.org/ml/ethos-u/ethos-u-core-driver.git/snapshot/ethos-u-core-driver-d1ea036bd870663d737db9bfbb25e2aa04a389e0.tar.gz"
def download(url_file: str, post_process=None):
with urlopen(url_file) as response, tempfile.NamedTemporaryFile() as temp:
logging.info(f"Downloading {url_file} ...")
temp.write(response.read())
temp.seek(0)
logging.info(f"Finished downloading {url_file}.")
if post_process:
post_process(temp)
def unzip(file, to_path):
with ZipFile(file) as z:
for archive_path in z.infolist():
archive_path.filename = archive_path.filename[archive_path.filename.find("/") + 1:]
if archive_path.filename:
z.extract(archive_path, to_path)
target_path = os.path.join(to_path, archive_path.filename)
attr = archive_path.external_attr >> 16
if attr != 0:
os.chmod(target_path, attr)
def untar(file, to_path):
with tarfile.open(file) as z:
for archive_path in z.getmembers():
index = archive_path.name.find("/")
if index < 0:
continue
archive_path.name = archive_path.name[index + 1:]
if archive_path.name:
z.extract(archive_path, to_path)
def main(dependencies_path: str):
download(cmsis,
lambda file: unzip(file.name,
to_path=os.path.join(dependencies_path, "cmsis")))
download(ethos_u_core_sw,
lambda file: untar(file.name,
to_path=os.path.join(dependencies_path, "core-software")))
download(ethos_u_core_driver,
lambda file: untar(file.name,
to_path=os.path.join(dependencies_path, "core-driver")))
download(tf,
lambda file: unzip(file.name,
to_path=os.path.join(dependencies_path, "tensorflow")))
if __name__ == '__main__':
logging.basicConfig(filename='download_dependencies.log', level=logging.DEBUG, filemode='w')
logging.getLogger().addHandler(logging.StreamHandler(sys.stdout))
download_dir = os.path.abspath(os.path.join(os.path.dirname(os.path.abspath(__file__)), "dependencies"))
if os.path.isdir(download_dir):
logging.info(f'{download_dir} exists. Skipping download.')
else:
main(download_dir)
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