使用Python的tarfile创建tarball时保留文件权限 [英] preserving file permission when creating a tarball with Python's tarfile

问题描述

你好stackoverflowers

hello stackoverflowers,

使用Python的tarfile模块时，我想保留原始文件权限. 一旦压缩包被解压缩，我就会丢失很多可执行文件的权限.

I want to preserve the original file permissions when using Python's tarfile module. I have quite a few executable files that lose their permissions once the tarball is extracted.

我正在做这样的事情:

import tarfile
tar = tarfile.open("mytarball.tar.gz", 'w:gz')
tar.add('my_folder') #tar the entire folder 
tar.close()

然后我使用shutil将其从Windows复制到linux计算机(映射有samba):

Then I copy it from windows to a linux machine (mapped with samba) using shutil:

shutil.copy("mytarball.tar.gz",unix_dir)

然后，要在Linux中提取压缩包

Then, to extract the tarball in linux I do

unix>tar -xvf mytarball.tar.gz  

解压缩tarball后，我会丢失文件的所有'x'权限

After the tarball is extracted I lose all the 'x' permissions on my files

有什么线索可以解决这个问题吗?

Any clues how to solve this issue?

致谢

推荐答案

如果您知道哪些文件应具有执行权限，则可以使用过滤器功能手动设置权限:

If you know which of your files should have execute permissions or not, you can set the permissions manually with a filter function:

def set_permissions(tarinfo):
    tarinfo.mode = 0777 # for example
    return tarinfo

tar.add('my_folder', filter=set_permissions)

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