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Re: are diffs available for .orig.tar.gz files

On Tue, Feb 20, 2007 at 07:54:34AM +0200, Tshepang Lekhonkhobe wrote:
> On 2/20/07, Kevin Mark <kevin.mark@verizon.net> wrote:
> >On Mon, Feb 19, 2007 at 09:25:16PM +0200, Tshepang Lekhonkhobe wrote:
> >> On 2/19/07, Kevin Mark <kevin.mark@verizon.net> wrote:
> >> >So I'd expect an upstream diff to be availible from the upstream
> >> >website, if it exists.
> >>
> >> I want to avoid this step and am looking for an easier way, since, as
> >> you mention, the upstream diff file may not exist from upstream.
> >> Another Question is if Debian orig files are ever modified or if they
> >> truly are pure upstream. I'm thinking of the kernel issue where
> >> non-free stuff is removed, for example.
> >Well from my minute understanding of Debian development and policy, the
> >orig.tgz is suppose to be pristine unless there is a really good reason.
> me don't think that your understanding is minute at all :-)
> >Like maybe it contains non-free stuff. IIRC DD Miriam Ruiz had a blog
> >post about 'games' that she was packaging and most of them had non-free
> >sounds, artwork and datafiles that had to be replaced. You should
> >consult the debian-mentors list as they'd know. And of course reading
> >Debian packaging and  policy guides.
> me was hoping for quick and easy answer, but will check this out.
> >I visited the linux.org site. They have diff there. I'd be interested in
> >the breakdown of the MB and hours used to complete this vs the expected
> >time to download the binary files.
> IIUC, you mean you want to know the benefits of doing diff files, as
> compared to doing binary ones? If you got massive bandwidth, binary's
> cool, but if you want all 3 DVD's (loads of us don't have internet
> connection), you quickly notice the use of compiling from source via
> diffs.
What I meant was:
get upstream tarball (A minutes,B MB)
make to compile (C minutes, D MB)
make install (E minutes, E MB)
get diff (F minutes, G MB)
make to compile (H minutes, I compile)
make install (J minutes, K MB)
Time T0=A+C+E
Time T1=F+H+J
then compare 
apt-get (L minutes download, M minutes install, N Minutes install)
Time T2=L+M

initiall install: 
is T0 < T2
first upgrade: 
is T1 < T2
is T0+T1 < T2 * 2
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