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import sys
import re
import json
import base64
import argparse
import requests
from urllib.parse import urlparse
def process_github_release(url, token=None):
parsed = urlparse(url)
path_parts = parsed.path.strip('/').split('/')
if len(path_parts) < 5 or parsed.netloc != 'github.com':
raise ValueError("Invalid GitHub release URL format")
owner, repo, _, _, tag = path_parts[:5]
headers = {"Accept": "application/vnd.github.v3+json"}
if token:
headers["Authorization"] = f"Bearer {token}"
response = requests.get(
f"https://api.github.com/repos/{owner}/{repo}/releases/tags/{tag}",
headers=headers
)
if response.status_code != 200:
raise RuntimeError(f"Failed to fetch release info: {response.status_code} ({response.json().get('message')})")
release_data = response.json()
assets = release_data.get('assets', [])
result = {}
sha256_pattern = re.compile(r"^[a-fA-F0-9]{64}$")
for asset in assets:
if not asset['name'].endswith('.sha256'):
continue
download_url = asset['browser_download_url']
content_response = requests.get(download_url, headers=headers)
if content_response.status_code != 200:
raise RuntimeError(
f"Failed to download {asset['name']}: "
f"{content_response.status_code} {content_response.text}"
)
hex_hash = content_response.text.strip()
if not sha256_pattern.match(hex_hash):
raise ValueError(f"Invalid SHA256 format in {asset['name']}")
try:
byte_data = bytes.fromhex(hex_hash)
base64_hash = base64.b64encode(byte_data).decode('utf-8')
except Exception as e:
raise RuntimeError(f"Error processing {asset['name']}: {str(e)}")
filename = asset['name'][:-7]
result[filename] = f"sha256-{base64_hash}"
output_file = f"{repo}_{tag}_hashes.json"
with open(output_file, 'w', encoding='utf-8') as f:
json.dump(result, f, indent=2, ensure_ascii=False)
print(f"Successfully generated {output_file}")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Process GitHub release hashes')
parser.add_argument('url', help='GitHub release URL')
parser.add_argument('-t', '--token', help='GitHub API token (optional)')
args = parser.parse_args()
try:
process_github_release(args.url, args.token)
except Exception as e:
print(f"Error: {str(e)}")
sys.exit(1)
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