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Re: creating size-limited tar files

References <mailman.3381.1352308430.27098.python-list@python.org> <509ab0fa$0$6636$9b4e6d93@newsspool2.arcor-online.net> <roy-2C9B4D.15322307112012@news.panix.com> <509AD812.2060605@gmail.com> <CAHVvXxTH7WrfT41GDj15f9FS4eguBF2dj4Khpu_vw2TWMkvPYg@mail.gmail.com>
Date 2012-11-08 10:11 +0000
Subject Re: creating size-limited tar files
From andrea crotti <andrea.crotti.0@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.3428.1352369507.27098.python-list@python.org> (permalink)

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2012/11/7 Oscar Benjamin <oscar.j.benjamin@gmail.com>:
>
> Correct. But if you read the rest of Alexander's post you'll find a
> suggestion that would work in this case and that can guarantee to give
> files of the desired size.
>
> You just need to define your own class that implements a write()
> method and then distributes any data it receives to separate files.
> You can then pass this as the fileobj argument to the tarfile.open
> function:
> http://docs.python.org/2/library/tarfile.html#tarfile.open
>
>
> Oscar



Yes yes I saw the answer, but now I was thinking that what I need is
simply this:
tar czpvf - /path/to/archive | split -d -b 100M - tardisk

since it should run only on Linux it's probably way easier, my script
will then only need to create the list of files to tar..

The only doubt is if this is more or less reliably then doing it in
Python, when can this fail with some bad broken pipe?
(the filesystem is not very good as I said and it's mounted with NFS)

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Thread

creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-07 17:13 +0000
  Re: creating size-limited tar files Neil Cerutti <neilc@norwich.edu> - 2012-11-07 18:40 +0000
  Re: creating size-limited tar files Alexander Blinne <news@blinne.net> - 2012-11-07 20:05 +0100
    Re: creating size-limited tar files Roy Smith <roy@panix.com> - 2012-11-07 15:32 -0500
      Re: creating size-limited tar files Andrea Crotti <andrea.crotti.0@gmail.com> - 2012-11-07 21:52 +0000
      Re: creating size-limited tar files Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2012-11-07 23:15 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-08 10:11 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-08 10:29 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-09 10:39 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-13 10:31 +0000
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:07 -0700
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:25 -0700
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-13 09:30 -0700
      Re: creating size-limited tar files Kushal Kumaran <kushal.kumaran+python@gmail.com> - 2012-11-14 11:35 +0530
      Re: creating size-limited tar files Ian Kelly <ian.g.kelly@gmail.com> - 2012-11-14 00:22 -0700
      Re: creating size-limited tar files Kushal Kumaran <kushal.kumaran+python@gmail.com> - 2012-11-14 14:21 +0530
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 11:52 +0000
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 15:56 +0000
      Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 11:10 -0500
      Re: creating size-limited tar files andrea crotti <andrea.crotti.0@gmail.com> - 2012-11-14 16:16 +0000
  Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 11:33 -0500
  Re: creating size-limited tar files Andrea Crotti <andrea.crotti.0@gmail.com> - 2012-11-14 20:43 +0000
  Re: creating size-limited tar files Dave Angel <d@davea.name> - 2012-11-14 15:57 -0500

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