[Nottingham] Calculating the overhead of "tar"

[Mike Cardwell]

On Sun, 12 Dec 2004, Martin wrote:

>> I have an obscure question, and this is the most appropriate list I read
> [---]
>> I am confident that there is a method for calculating what the filesize of 
>> a tarball will be, by simply knowing the filenames, filesizes, and 
> [---]
> Either take a few examples and /try/ it to see for yourself (experiment), or 
> look at the source.

I was hoping to not have to reverse engineer tar. :(

> A quick fix would be to just add say 5% or 10% and make the user very happy 
> when it finishes slightly faster than expected!

I'm uncomfortable about setting incorrect Content-length headers. I get 
the feeling certain browsers wont like it.

> A Google search might find some docs...

That's the problem. It doesn't. :)

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