On Wed, Nov 6, 2019 at 7:17 PM John H Palmieri <jhpalmier...@gmail.com> wrote:
>
> Simon, you should look at the json file for p_group_cohomology to see if it
> contains all of the installed files, or if indeed some are not listed. If
> everything is there, there is no need to split it into two packages, unless
> I'm missing something.
if you look at its spkg-install, you'd see that shd_install is not
used at some place, instead
make install
is done, something that won't write any JSON files, IMHO...
>
>
>
> On Wednesday, November 6, 2019 at 9:33:04 AM UTC-8, Dima Pasechnik wrote:
>>
>> sdh_install installs a json file into
>> SAGE_LOCAL/var/lib/sage/installed/
>> which are then used by unistallaller
>>
>> e.g. "make meataxe" produces SAGE_LOCAL/var/lib/sage/installed/meataxe-1.0.p0
>> {
>> "package_name": "meataxe",
>> "package_version": "1.0.p0",
>> "install_date": "Wed Nov 6 17:24:57 GMT 2019",
>> "system_uname": "Linux hilbert 5.1.12-gentoo #1 SMP Fri Jun 21
>> 19:27:38 BST 2019 x86_64 Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz
>> GenuineIntel GNU/Linux",
>> "sage_version": "SageMath version 9.0.beta4, Release Date: 2019-11-02",
>> "test_result": "",
>> "files": [
>> "bin/cfcomp",
>> "bin/chop",
>> ...
>> }
>>
>> I guess sdh_pip_install does not do this, I don't know.
>>
>> Anyhow, it would make perfect sense to split the package into two, as
>> you propose.
>>
>> On Wed, Nov 6, 2019 at 3:55 PM Simon King <simo...@uni-jena.de> wrote:
>> >
>> > Hi Eric,
>> >
>> > On 2019-11-06, E. Madison Bray <erik...@gmail.com> wrote:
>> > >> However, I heard rumours that in order to make a Sage optional package
>> > >> uninstallable, one needs some new script analogous to spkg-install.
>> > >>
>> > >> Can someone give me a pointer on what should be done in that script and
>> > >> what tools (sdh_*) are available for it?
>> > >
>> > > That's not quite accurate. In general you do *not* need any
>> > > additional scripts, with some exception.
>> > > These packaging guidelines still need better documentation, but
>> > > essentially you need to make sure the package is built for what is
>> > > referred in GNU standards as a "DESTDIR install" [1]. This means that
>> > > the package is built for installation to some particular prefix (e.g.
>> > > `./configure --prefix=$SAGE_LOCAL` in autoconf terms), but can then be
>> > > *installed* with some additional path (the "DESTDIR") prepended to the
>> > > prefix. This is similar to providing an alternate root (e.g. prefix
>> > > is appended to DESTDIR instead of just "/").
>> >
>> > Then what to do with p_group_cohomology? Its spkg-install script
>> > installs two sub-packages. Each of them, I think, follows the above
>> > scheme. However, Sage has no way of knowing that uninstalling
>> > p_group_cohomology means uninstalling two sub-packages.
>> >
>> > Perhaps one possibility is to split the current p_group_cohomology-3.3
>> > into its two sub-packages, and make the first (which is autotoolized)
>> > a dependency for the second (which is a bunch of cython and python
>> > modules linked against the first sub-package.
>> >
>> > Say:
>> > - p_group_cohomology-3.4 shall only comprise what currently is the
>> > p/cython part of p_group_cohomology-3.3, and have modular_resolution
>> > as a dependency.
>> > - modular_resolution-1.0 shall only comprise what currently is the
>> > autotoolized c-library part of p_group_cohomology-3.3
>> >
>> > Advantage: "make p_group_cohomology" would also install the dependency,
>> > hence, both packages get installed. And both packages can also be
>> > un-installed, I suppose.
>> >
>> > Disadvantage: The only purpose of modular_resolution-1.0 would be to
>> > serve as a dependency, it is (to my knowledge at least) of no
>> > independent use.
>> >
>> > Best regards,
>> > Simon
>> >
>> > --
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>
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