host.py 文件源码

def write_file(path, content, owner='root', group='root', perms=0o444):
    """Create or overwrite a file with the contents of a byte string."""
    log("Writing file {} {}:{} {:o}".format(path, owner, group, perms))
    uid = pwd.getpwnam(owner).pw_uid
    gid = grp.getgrnam(group).gr_gid
    with open(path, 'wb') as target:
        os.fchown(target.fileno(), uid, gid)
        os.fchmod(target.fileno(), perms)
        target.write(content)