Introducing cpanfile [meta issue]

[ikedas]

Introducing cpanfile to manage dependency information about external Perl modules.

Workplace: create-cpanfile branch.

Preceding discussions (possibly incomplete):

• https://listes.renater.fr/sympa/arc/sympa-developpers/2018-05/msg00026.html
• https://listes.renater.fr/sympa/arc/sympa-developpers/2018-05/msg00050.html
• https://listes.renater.fr/sympa/arc/sympa-developpers/2018-05/msg00044.html

[ikedas]

@ldidry,

If you are ok, I'll merge create-cpanfile branch to sympa-6.2 (including #351).

[ldidry]

Go for it!

[ikedas]

@ldidry,
I realized cpanfile does not contain Perl as dependency. Isn't it problematic not to check version of Perl? If it is, how we would do it?

[ldidry]

Good point.

As said on https://metacpan.org/pod/Carton:

You can also specify the minimum perl required in cpanfile:

requires 'perl', '5.16.3';

and carton (and cpanm) will give you errors when deployed on hosts with perl lower than the specified version.

[ikedas]

I added a requirement for perl as suggested.

@ldidry, if you feel ok, please merge pr above. It will be the last thing added to 6.2.34!

[ikedas]

Thanks!