util.py 文件源码

def doshell(chrootPath=None, environ=None, uid=None, gid=None, cmd=None,
            nspawn_args=None,
            unshare_ipc=True,
            unshare_net=False):
    log = getLog()
    log.debug("doshell: chrootPath:%s, uid:%d, gid:%d", chrootPath, uid, gid)
    if environ is None:
        environ = clean_env()
    if 'PROMPT_COMMAND' not in environ:
        environ['PROMPT_COMMAND'] = r'printf "\033]0;<mock-chroot>\007"'
    if 'PS1' not in environ:
        environ['PS1'] = r'<mock-chroot> \s-\v\$ '
    if 'SHELL' not in environ:
        environ['SHELL'] = '/bin/sh'
    log.debug("doshell environment: %s", environ)
    if cmd:
        if not isinstance(cmd, list):
            cmd = [cmd]
        cmd = ['/bin/sh', '-c'] + cmd
    else:
        cmd = ["/bin/sh", "-i", "-l"]
    if USE_NSPAWN:
        # nspawn cannot set gid
        cmd = _prepare_nspawn_command(chrootPath, uid, cmd, nspawn_args=nspawn_args, env=environ)
    preexec = ChildPreExec(personality=None, chrootPath=chrootPath, cwd=None,
                           uid=uid, gid=gid, env=environ, shell=True,
                           unshare_ipc=unshare_ipc, unshare_net=unshare_net)
    log.debug("doshell: command: %s", cmd)
    return subprocess.call(cmd, preexec_fn=preexec, env=environ, shell=False)