Perl packages for polymake

[mkoeppe]

To simplify installation of polymake, we add some required CPAN packages.

Including recursive dependencies, these are 103 packages, a total of 7.5 MB of source archives, which we pack up as the source tar ball of the new spkg perl_cpan_polymake_prereq.
The source tar ball (attached) also contains a copy of the self-contained cpanm Perl script, which is used for installing the packages.
If SAGE_CHECK=no, only about 35 packages are installed. The rest of the dependencies are for testing.

Using an spkg-configure.m4, it is downloaded and installed only if the Perl packages are not already present on the system.

The spkg-install installs the packages via the package dependencies mechanism. If some of the packages are already installed in some version on the system, we do not install a newer version.

To try out:

   wget -P upstream https://github.com/sagemath/sage-prod/files/10659280/perl_cpan_polymake_prereq-2019-05-19.tar.gz

See also the sage-devel post about compilation: https://groups.google.com/forum/#!topic/sage-devel/ukJgMweHszU

Depends on #29582

CC: @dimpase @jplab lorenz@math.tu-berlin.de kastner@math.tu-berlin.de paffenholz@mathematik.tu-darmstadt.de

Component: packages: optional

Author: Matthias Koeppe

Branch/Commit: u/mkoeppe/perl_packages_for_polymake @ 225dea9

Issue created by migration from https://trac.sagemath.org/ticket/27763

[dimpase]

comment:2

I'd suggest to have appropriate spkg-configure.m4, to avoid installing extra...

By the way, could you provide spkg-configure.m4 for perl_term_readline_gnu, and other already present as packages polymake deps (perl or not)?

[mkoeppe]

comment:3

Do you have a suggestion how to install these CPAN packages if they are not available?
There seems to be a large number of dependencies that each of the listed packages pulls in -- but probably many are "standard" on any system that has perl installed.

[dimpase]

comment:4

I don't know much about perl. Does it have anything analogous to Python's pip, which allows direct installation from the net (from CPAN, I guess) ?

[mkoeppe]

comment:5

Yes, the cpan program does the equivalent of pip.

[dimpase]

comment:6

I tried something like perl -MCPAN -e 'install XML::Writer' but it seems to want to install stuff into /usr/local rather than $SAGE_LOCAL.
Do you know how to set all this up properly?

[mkoeppe]

comment:7

I have only used cpan -i, which asks whether to install system wide or in the user's home directory.
Here's some info: https://stackoverflow.com/questions/540640/how-can-i-install-a-cpan-module-into-a-local-directory

I used something like this for perl_term_readline_gnu, but this is not going through cpan.

[dimpase]

comment:8

I don't know, it seems one needs to setup some local::lib magic, otherwise I keep getting errors trying to to install into /usr/local.

local::lib is a Perl module that apparently allows one to use non-standard directories for module installation, it might not be in by default (e.g. it's not in Gentoo, one needs to install it).

Anyhow - for checking in autoconf which perl modules are installed, one can use AX_PROG_PERL_MODULES

[dimpase]

comment:9

I also had to install File::Slurp perl module. Fortunately on Gentoo there seems to be an (almost?) 1-to-1 correspondence between perl packages named X::Y and Gentoo packages named X-Y.

I also see

File "src/sage/interfaces/polymake.py", line 884, in sage.interfaces.polymake.Polymake._eval_line
Failed example:
    c                                 # optional - polymake
Expected:
    cube of dimension 15
Got:
    1
    print ref(@SAGE590);
    print reftype(@SAGE590);
**********************************************************************
File "src/sage/interfaces/polymake.py", line 886, in sage.interfaces.polymake.Polymake._eval_line
Failed example:
    c.N_VERTICES                      # optional - polymake
Expected:
    32768
Got:
    Member function 'N_VERTICES' of  object

[mkoeppe]

comment:10

Replying to @dimpase:

I also had to install File::Slurp perl module.

Yes, this is already mentioned in polymake/SPKG.txt

Fortunately on Gentoo there seems to be an (almost?) 1-to-1 correspondence between perl packages named X::Y and Gentoo packages named X-Y.

I also see

File "src/sage/interfaces/polymake.py", line 884, in sage.interfaces.polymake.Polymake._eval_line
Failed example:
    c                                 # optional - polymake
Expected:
    cube of dimension 15
Got:
    1
    print ref(@SAGE590);
    print reftype(@SAGE590);
**********************************************************************
File "src/sage/interfaces/polymake.py", line 886, in sage.interfaces.polymake.Polymake._eval_line
Failed example:
    c.N_VERTICES                      # optional - polymake
Expected:
    32768
Got:
    Member function 'N_VERTICES' of  object

With which version of polymake is this? The 3.4 upgrade ticket has fixes for something like this.

[dimpase]

comment:11

If I do

--- a/src/sage/interfaces/polymake.py
+++ b/src/sage/interfaces/polymake.py
@@ -874,10 +874,6 @@ class Polymake(ExtraTabCompletion, Expect):
         sometimes it hangs, and therefore we remove it from the tests, for now::
 
             sage: c = polymake.cube(15)             # optional - polymake
-            sage: polymake.eval('print {}->F_VECTOR;'.format(c.name()), timeout=1) # optional - polymake # not tested
-            Traceback (most recent call last):
-            ...
-            RuntimeError: Polymake fails to respond timely
 
         We verify that after the timeout, polymake is still able to give answers::
 

then the tests pass, so the timeout thing seems to be doing more harm than good.

[dimpase]

comment:12

I am testing this branch, so 3.4.

[dimpase]

comment:13

oops, sorry, wrong ticket. This is meant to be about polymake update to 3.4

[mkoeppe]

comment:14

yes, #24905.

[dimpase]

comment:15

Please see #27795 for using system's perm package Term::ReadLine::Gnu

[mkoeppe]

Dependencies: #24905, #27795