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Tarfile and usernames

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  Tarfile and usernames Nicholas Cole <nicholas.cole@gmail.com> - 2012-12-30 18:57 +0000
    Re: Tarfile and usernames Hans Mulder <hansmu@xs4all.nl> - 2012-12-30 22:24 +0100

#35809 — Tarfile and usernames

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Dear List,

I'm hoping to use the tarfile module in the standard library to move some
files between computers.

I can't see documented anywhere what this library does with userids and
groupids.  I can't guarantee that the computers involved will have the same
users and groups, and would like the archives to be extracted so that the
files are all owned by the extracting user.

Essentially, I do *not* with to preserve the owner and groups specified in
the archives.

What is the right way to achieve this?

Best wishes,

Nicholas

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#35813

On 30/12/12 19:57:31, Nicholas Cole wrote:
> Dear List,
> 
> I'm hoping to use the tarfile module in the standard library to move
> some files between computers. 
> 
> I can't see documented anywhere what this library does with userids and
> groupids.  I can't guarantee that the computers involved will have the
> same users and groups, and would like the archives to be extracted so
> that the files are all owned by the extracting user. 
> 
> Essentially, I do *not* with to preserve the owner and groups specified
> in the archives.
> 
> What is the right way to achieve this?

I would agree that this ought to be documented.

From reading the code: the way to achieve this, is to run as a user
other than root. Or monkeypatch the TarFile.chown method to be a no-op.


Hope this helps,

-- HansM

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