def _main()

in release-announcement.py [0:0]

• 76 lines of code
• 8 McCabe index (conditional complexity)

def _main():
    descr = "Generate Gerrit release announcement email text"
    parser = argparse.ArgumentParser(
        description=descr, formatter_class=argparse.ArgumentDefaultsHelpFormatter
    )
    parser.add_argument(
        "-v",
        "--version",
        dest="version",
        required=True,
        help="gerrit version to release",
    )
    parser.add_argument(
        "-p", "--previous", dest="previous", help="previous gerrit version (optional)"
    )
    parser.add_argument(
        "-s",
        "--summary",
        dest="summary",
        help="summary of the release content (optional)",
    )
    options = parser.parse_args()

    summary = options.summary
    if summary and not summary.endswith("."):
        summary = summary + "."

    data = {
        "version": Version(options.version),
        "previous": options.previous,
        "summary": summary,
    }

    war = os.path.join(
        os.path.expanduser("~/.m2/repository/com/google/gerrit/gerrit-war/"),
        "%(version)s/gerrit-war-%(version)s.war" % data,
    )
    if not os.path.isfile(war):
        print(
            "Could not find war file for Gerrit %s in local Maven repository"
            % data["version"],
            file=sys.stderr,
        )
        sys.exit(1)

    md5 = hashlib.md5()
    sha1 = hashlib.sha1()
    sha256 = hashlib.sha256()
    BUF_SIZE = 65536  # Read data in 64kb chunks
    with open(war, "rb") as f:
        while True:
            d = f.read(BUF_SIZE)
            if not d:
                break
            md5.update(d)
            sha1.update(d)
            sha256.update(d)

    data["sha1"] = sha1.hexdigest()
    data["sha256"] = sha256.hexdigest()
    data["md5"] = md5.hexdigest()

    template_path = os.path.join(
        os.path.dirname(os.path.realpath(__file__)), "release-announcement-template.txt"
    )
    template = Template(open(template_path).read())
    output = template.render(data=data)

    filename = "release-announcement-gerrit-%s.txt" % data["version"]
    with open(filename, "w") as f:
        f.write(output)

    gpghome = os.path.abspath(os.path.expanduser("~/.gnupg"))
    if not os.path.isdir(gpghome):
        print("Skipping signing due to missing gnupg home folder")
    else:
        try:
            gpg = GPG(homedir=gpghome)
        except TypeError:
            gpg = GPG(gnupghome=gpghome)
        signed = gpg.sign(output)
        filename = filename + ".asc"
        with open(filename, "w") as f:
            f.write(str(signed))