只装载OS X卷如果它不只是挂载怎么办？

Question

我正在使用Python脚本装载osx卷。当卷已装入时（因此脚本无法装载到本地目录），如何防止出现错误？在

def volumeMounter(remote_dir, local_dir):
    # Create local dir if it does not exist
    if not os.path.exists( local_dir ):
        os.makedirs( local_dir )
    local_dir = os.path.abspath(local_dir)

    # Attempt mounting of server share
    retcode = subprocess.call(["/sbin/mount", "-t", "smbfs", remote_dir, local_dir])
    if retcode != 0:
        raise OSError("Mount operation failed")

Answer 1

您可以在/Volumes处检查装载路径，如下所示：

mountedpath = os.path.join("/Volumes", local_dir)
if not os.path.exists(mountedpath):
    retcode = subprocess.call(["/sbin/mount", "-t", "smbfs", remote_dir, local_dir])
    if retcode != 0:
        raise OSError("Mount operation failed")
else:
    print "Mounted path found"