My previous journal entry was about the PAR::Repository auto-upgrading feature. That, however, was just a precursor to the big news. Here's (approximately) what I posted to the PAR mailing list a few days ago:
Let me provide some context. Ever since I wrote PAR::Repository::*, people mistook it for a PAR-based PPM replacement. It was never intended to be a package manager/installer like PPM but instead as a sort of application server that could be comfortably and centrally managed, maintained, and upgraded. Even having separate staging and production repositories is quite simple as a PAR repository is just a directory on an ordinary web server or file system. Heck, you can even import one into git and switch branches as your heart desires. Since the clients simply fetch the most current packages for their specific needs, they are always be up to date when launching a new application from the repository.
After I gave a talk about PAR and the repository concept at YAPC::EU 2008 in Copenhagen, people again asked whether they could use a PAR repository in place of PPM. I said they couldn't and that the fundamental difference is that PAR::Repository finds dependencies dynamically, recursively, at run-time, whenever a module is required as opposed to PPM's static dependency information. But at the time, I already had a secret scheme for adding static dependency information to PAR repositories. Since the work on PAR is done purely in my not so copious spare time, I didn't spill the beans just yet in case I'd never get around to finish it. Seems I was lucky.
Since a couple of days ago, there are development releases of PAR, PAR::Dist, PAR::Repository, PAR::Indexer and PAR::Repository::Client that sport support for static dependency extraction from
Getting to this point required a bit of Yak Shaving.
All involved modules have new releases on CPAN. They are mostly developer releases, since there must be serious bugs.
Thanks for reading!
 To give the new releases a whirl, you can simply install PAR::Repository (for the server side) or PAR::Repository::Client (for the client, doh). No need to manually install all the distributions, they'll be picked up as dependencies.