> > 1. Compose a list of CPAN distros starting with those farthest up river, > i.e., distros that only depend on the perl 5 core. Within that set of > distros I'd like to order them from most reverse dependencies to fewest. > Then go down river from there. > > David Golden has a script for generating the CPAN river heirarchy -- the > last run of this that I know of (at least, it's the data I've been working > off of) is at https://gist.github.com/xdg/af7a32c5b21d45a6b255 > <https://gist.github.com/xdg/af7a32c5b21d45a6b255>. It lists the > distributions in their position on the CPAN river, and their top 5 users > (reverse dependencies). This would be a natural place to start testing, and > determining which branches of the river have blockages (the first instance of > a no-dot-in-INC issue). David, can you generate a fresh copy?
I am generating the river data roughly weekly. You can get it from here: http://neilb.org/river-of-cpan.json.gz <http://neilb.org/river-of-cpan.json.gz> The file is a big array of hashes, one hash per distribution. Here’s an example, for Try-Tiny: { "dist" : "Try-Tiny”, "total" : 13045, "bucket" : 5, "immediate" : 1077 }, The keys are: “immediate” is the number of directly dependent CPAN distributions. “total” is the total number of dists dependent on it. “bucket” chunks the river: bucket 5 is dists with 10k or more total dependents. Bucket 4 is 1k up to 9999, and so on until bucket 0, which is dists that have no dependents. At the moment there are 56 dists in bucket 5 (“the head of the river”). This file is being imported into MetaCPAN. For example, for Try-Tiny, have a look at: https://fastapi.metacpan.org/distribution/Try-Tiny <https://fastapi.metacpan.org/distribution/Try-Tiny> At the moment this is being generated as a by-product of my scripts that run the PRC, generate the adoption list, etc. I’m currently working on a stand-alone generator for this data, which I’m hoping to have complete by PTS, so I can work on productising it with Leo Lapworth. Neil