Aloha Module::Info::File

“Aloha: Means hello and Ehh.. also goodbye” – Bighead

I have just processed some old PRs for Module::Info::File. A Perl distribution I created a long time ago. The module was implemented as a subclass of Module::Info, which I thought lacked some use-cases like basic file handling.

Actually the whole module concept came from a script named version.pl, which extracted basic meta data from Perl packages and Perl module files – this led me to Module::Info and to a solution of subclassing into Module::Info::File.

Anyway I got the PRs processed and got the whole thing working nicely. I had a look at the internals and was not satisfied, parsing version numbers in Perl components have always been interesting.

Based on a old note I had a look at Test::Version a module to test your version strings assuming it did something clever I had not thought of. It appeared that Test::Version was just based on Module::Metadata.

Module::Metadata looks quite impressive so I decided to pull out all the internals of Module::Info::File and implement new logic founded in Module::Metadata – *clickity* *click* – version 1.00 ready and after some testing and adjusting uploaded to PAUSE/CPAN.

The Module::Info::File distribution contains a test to check whether the superclass Module::Info would implement the same functionality, causing Module::Info::File to be obsolete – this just never happened.

Just out of curiosity I read up on Module::Info, which had had several releases, a new maintainer and new functionality, which should have caused the mentioned tests to fail.

I had a look at the documentation and fell over the following:

“Module loaded using new_from_file() won’t have this information in which case you can set it yourself.”

So I thought why not look into whether my code can be ported to the superclass, since I actually do that, I did it prior to 1.00 and I do with 1.00…

Looking around for a Github repository link I ended up in the issues/bug tool RT. Here RT:115147 stood out.

“I wonder if it is time to deprecate Module::Info, or at least point to Module::Metadata as the in-core and preferred mechanism for gathering module information? It looks like Module::Info’s mechanism for parsing $VERSIONs out of files is quite incomplete and outdated.”

I had just changed Module::Info::File to use Module::Metadata and going over the newer releases of Module::Info I located module_info a magnificent tool for replacing my own version.pl – except for the fact that it outputs the filename instead of the package name when providing it with a file as argument.

So now I am unsure of what way to go:

  • Should I deprecate Module::Info::File and just play along with Module::Info and it’s module_info
  • Should I talk to the current maintainer of Module::Info about using Module::Metadata internally so the file handling would improve, since I just observed that worked for Module::Info::File 1.00 and then deprecate Module::Info::File
  • Or should I just forget the whole  Module::Info / Module::Metadata thing and focus or maintaining Module::Info::File

Anyway it is all in the life-cycle of Perl distributions – distributions come and go…

Aloha Module::Info::File