On Fri, Dec 5, 2008 at 12:20 PM, mabshoff <[EMAIL PROTECTED]> wrote:
>
>
>
> On Dec 5, 11:27 am, "William Stein" <[EMAIL PROTECTED]> wrote:
>> On Fri, Dec 5, 2008 at 2:54 AM, mabshoff <[EMAIL PROTECTED]> wrote:
>>
>> > Hello folks,
>>
>> > the extcode repo in Sage is somewhat of a dumping ground what doesn't
>> > really fit anywhere else. Below is the disk use of all directories
>> > that aren't more or less empty:
>>
>> > 44K     dist
>> > 36K     gap
>> > 24K     images
>> > 1.2M    javascript
>> > 228K    magma
>> > 52K     maxima
>> > 3.0M    notebook
>> > 1.9M    pari
>> > 400K    pickle_jar
>> > 204K    sagebuild
>> > 16K     singular
>> > 7.2M    total
>>
>> > The 3.0 MB notebook is at least size-wise 95% javascript, too. We
>> > (Jason Grout is doing all the hard work) are in the process of moving
>> > all the javascript packages we use (jsmath, jquery, ...) to spkgs so
>> > that the repo will be much smaller in the future while the .hg repo
>> > information itself will grow by another couple MB. In the end the
>> > compressed extcode.spkg will be just as large as before the removal.
>> > And shipping such an amount of basically 3rd party code we checked in
>> > and then removed seems like a waste of resources. But what to do?
>>
>> >  (a) nuke the extrepo and move things into other places. The
>> > pickle_jar could go into the main Sage repo, the pari scripts into the
>> > pari.spkg, the images and the notebook code could also be part of the
>> > main repo. That leaves certain code for Maxima, Singular and Magma in
>> > search of a place to hang out.
>>
>> >  (b) reset the extrepo. This is the less invasive option, but would
>> > destroy the version history of some of the files. One option here is
>> > to check in files in the name of the previous main author, but it
>> > seems like a bad move.
>>
>> > Either way we should do something about the extocde repo. Since the
>> > doc repo will die in 3.3. it seems like an excellent opportunity to
>> > finish some long needed cleanup. I could certainly imagine some
>> > combination of (a) and (b), i.e. the pari data seems to be large
>> > untouched in a while and the pari.spkg would seem like a canonical
>> > place for it. Putting those pari scripts and data under revision
>> > control also seems rather pointless.
>>
>> > Thoughts?
>
> Hi,
>
>> I am very opposed to moving any of the code in other languages into
>> spkg's.
>
> I didn't make myself clear on that point, but I have the same
> intention as you do: I would claim that the pari data is special in
> that regard since it consists on the the following scripts/data:
>
> 1.5M    SEA
>  20K    buzzard
> 108K    cremona
>  84K    dokchitser
> 160K    simon
>
> I think all of them are from some upstream source and we do rarely if
> ever change those unlike say the Magma code which is written for Sage
> specifically by us. Since I agree that sticking them into the
> pari.spkg would cause trouble for packagers I would suggest we create
> an pari_scripts.spkg and stick them in there.  I see no point checking
> those files into the main Sage devel repo since we don't actively
> change them anyway and would only waste resources in tracking them.
>
> I will comment more on each individual directory below.
>
>>  I think spkg's should as close as possible approximate the
>> upstream originals.  This is very important for the Debian and other
>> packaging efforts, and is conceptually much better. For example, Nick
>> and I were working on the Sage/Magma interface yesterday, and had to
>> write lots of code that also goes in the data/extcode/magma directory.
>>  Exactly the same thing could have happened with Gap, and it would
>> have sucked for half our patches to be patches against the Gap spkg.
>
> Absolutely.
>
>> However, I don't like the current situation either.  I'm tempted to
>> actually propose that we move everything we need that is in extcode to
>> the main Sage library repo, just like Mike Hansen is moving the docs
>> of Sage to that repository.  Then we delete the extcode spkg and
>> repository completely.
>> We would thus have a new subdirectory:
>>
>>           SAGE_ROOT/devel/sage/extcode
>>
>> with subdirectories for various languages.   A big plus to this is
>> that, e.g., the work Nick and I was doing would involve a single patch
>> against the main sage library instead of one patch for extcode and one
>> for the main library.
>
> Yes, I like that very much and am certainly in favor here.
>
>> The main reason the repos are broken up now is just historical and
>> because our previous revision control system (darcs) seemed to not
>> scale very well.   Mercurial scales fine, and seems to have no problem
>> at all dealing with the entire massive Sage history, so I think adding
>> the Sphinx docs and extcode to the main library would be a good move.
>
> I did not know that that was the reason for the existence of the doc
> and ext repos, but that is good to know for future "obscure questions
> about the history of Sage" quizzes at future Sage Days :)
>
>> So that's my counter-proposal.
>>
>>  -- Wiliam
>
> The following directories should be deleted - at least Tim Abbott
> mentioned that the Debian people disliked empty directories. IIRC
> William said they were an historical artifact, but maybe someone else
> would come up with a reason to keep them. But if they are needed for
> some interface we should just change those interfaces to use SAGE_TMP
> or something along those lines.
>
>  0B    MuPAD
>  0B    QEPCAD
>  0B    genus2reduction
>  0B    gnuplot
>  0B    kash
>  0B    macaulay2
>  0B    maple
>  0B    mathematica
>  0B    matlab
>  0B    octave
>  0B    sage
>  0B    sobj
>
> --------
>
> Now on to the more interesting files and directories:
>
>  36K    dist
>
> Probably delete since that is the Debian code to package the extcode
> repo.
>
> --------
>
>  24K    gap
>
> Move to Sage Dev repo. David Joyner mentioned earlier he could now
> implement that functionality in Sage, but I would suggest we move it
> anyway to not hold up the move.
>
> --------
>
>  20K    images
>
> Move to Sage Dev repo
>
> --------
>
> 1.1M    javascript
>
> Move to independent spkgs - work in progress
>
> --------
>
> 200K    magma
>
> Move to Sage Dev repo
>
> --------
>
>  40K    maxima
>
> Move to Sage Dev repo
>
> --------
>
> 4.0K    mirror:
>
> I am sure the following can be safely deleted: :)
>
> cd $HOME/sage/web/dist/src/extcode-darcs/
> darcs changes > changelog_darcs.txt
> echo "uploading"
> rsync -axLH --rsh=ssh --delete -r -v  * modular:/home/was/www/sage/
> dist/src/extcode-darcs
>
> --------
>
> 4.0K    mwrank
>
> this contains the file primes with says: "19047851" I assume this
> constant can be stuck either somewhere else or hardcoded in some
> place.
>
> --------
>
> 2.8M    notebook
>
> Mostly javascript which is being moved to spkgs, the other data should
> go into the Sage Dev repo. Since the templates are over there anyway
> it seems better to have one place for that data than two. It should be
> audited which data are actually still in use so we can nuke the rest.
>
> --------
>
> 1.8M    pari
>
> See above: I would like those to get moved to a pari_scripts.spkg
>
> --------
>
> 392K    pickle_jar
>
> Move to Sage Dev repo
>
> --------
>
> 192K    sagebuild
>
> We might have to hang on for that one for a while until -tp is
> completely independent of pbuild, so move to Sage Dev repo
>
> --------
>
> 8.0K    singular
>
> Move to Sage Dev repo
> --------
>
> The following four: Delete - no longer needed
>
> 4.0K    spkg-debian
> 4.0K    spkg-dist
> 4.0K    spkg-install
> 4.0K    sage-push
>

I'm strongly in favor of this proposal.

William

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