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#!/usr/bin/python3
"""
Creates Github Releases Notes with content hashes
"""
import argparse
import logging
import os
import hashlib
import glob
from github import Github, GithubException, UnknownObjectException
FORMAT = "%(levelname)s - %(asctime)s: %(message)s"
logging.basicConfig(format=FORMAT)
CLOUDFLARED_REPO = os.environ.get("GITHUB_REPO", "cloudflare/cloudflared")
GITHUB_CONFLICT_CODE = "already_exists"
def get_sha256(filename):
""" get the sha256 of a file """
sha256_hash = hashlib.sha256()
with open(filename,"rb") as f:
for byte_block in iter(lambda: f.read(4096),b""):
sha256_hash.update(byte_block)
return sha256_hash.hexdigest()
def update_or_add_message(msg, name, sha):
"""
updates or builds the github version message for each new asset's sha256.
Searches the existing message string to update or create.
"""
new_text = '{0}: {1}\n'.format(name, sha)
start = msg.find(name)
if (start != -1):
end = msg.find("\n", start)
if (end != -1):
return msg.replace(msg[start:end+1], new_text)
back = msg.rfind("```")
if (back != -1):
return '{0}{1}```'.format(msg[:back], new_text)
return '{0} \n### SHA256 Checksums:\n```\n{1}```'.format(msg, new_text)
def get_release(repo, version):
""" Get a Github Release matching the version tag. """
try:
release = repo.get_release(version)
logging.info("Release %s found", version)
return release
except UnknownObjectException:
logging.info("Release %s not found", version)
def parse_args():
""" Parse and validate args """
parser = argparse.ArgumentParser(
description="Creates Github Releases and uploads assets."
)
parser.add_argument(
"--api-key", default=os.environ.get("API_KEY"), help="Github API key"
)
parser.add_argument(
"--release-version",
metavar="version",
default=os.environ.get("VERSION"),
help="Release version",
)
parser.add_argument(
"--dry-run", action="store_true", help="Do not modify the release message"
)
args = parser.parse_args()
is_valid = True
if not args.release_version:
logging.error("Missing release version")
is_valid = False
if not args.api_key:
logging.error("Missing API key")
is_valid = False
if is_valid:
return args
parser.print_usage()
exit(1)
def main():
""" Attempts to update the Github Release message with the github asset's checksums """
try:
args = parse_args()
client = Github(args.api_key)
repo = client.get_repo(CLOUDFLARED_REPO)
release = get_release(repo, args.release_version)
msg = release.body
for filepath in glob.glob("artifacts/*"):
pkg_hash = get_sha256(filepath)
# add the sha256 of the new artifact to the release message body
name = os.path.basename(filepath)
msg = update_or_add_message(msg, name, pkg_hash)
if args.dry_run:
logging.info("Skipping asset upload because of dry-run")
return
# update the release body text
release.update_release(args.release_version, msg)
except Exception as e:
logging.exception(e)
exit(1)
main()