creating size-limited tar files
Neil Cerutti
neilc at norwich.edu
Wed Nov 7 13:40:14 EST 2012
On 2012-11-07, andrea crotti <andrea.crotti.0 at gmail.com> wrote:
> Simple problem, given a lot of data in many files/directories, I
> should create a tar file splitted in chunks <= a given size.
>
> The simplest way would be to compress the whole thing and then split.
>
> At the moment the actual script which I'm replacing is doing a
> "system('split..')", which is not that great, so I would like to do it
> while compressing.
>
> So I thought about (in pseudocode)
>
> while remaining_files:
> tar_file.addfile(remaining_files.pop())
> if size(tar_file) >= limit:
> close(tar_file)
> tar_file = new_tar_file()
>
I have not used this module before, but what you seem to be
asking about is:
TarFile.gettarinfo().size
But your algorithm stops after the file is already too big.
--
Neil Cerutti
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