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#!/usr/bin/env python3
import hashlib
import sys
import pathlib
import urllib.request
import yaml
SCRIPT = pathlib.Path(__file__)
FW = SCRIPT.parent
ESPRESSIF_MODULE = FW / "zephyrproject/modules/hal/espressif"
MODULE_YAML = ESPRESSIF_MODULE / "zephyr/module.yml"
BLOBS = ESPRESSIF_MODULE / "zephyr/blobs"
def main() -> None:
text = MODULE_YAML.read_text()
data = yaml.safe_load(text)
for entry in data["blobs"]:
url = entry["url"]
checksum = entry["sha256"]
path = entry["path"]
get_blob(
url=url,
checksum=checksum,
path=path,
)
def get_blob(url, checksum, path):
sys.stdout.write(f"Downloading {path} ...")
with urllib.request.urlopen(url) as conn:
content = conn.read()
sys.stdout.write(" done\n")
sha256 = hashlib.sha256()
sha256.update(content)
calculated = sha256.hexdigest()
if calculated == checksum:
print("Checksum matched.")
else:
print(f"Checksum mismatch for {path}!")
print(f"Expected: {checksum}")
print(f"Got: {calculated}")
target: pathlib.Path = BLOBS / path
target.parent.mkdir(exist_ok=True, parents=True)
target.write_bytes(content)
print(f"Saved to {path}")
if __name__ == "__main__":
main()
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