This blog post describes a model that we found useful for talking about CPAN dependencies and reverse dependencies at the QA Hackathon. At the head of the river is Perl itself with the core modules. The river flows into the sea, which contains all distributions that aren't used by any other distribution. Other distributions sit somewhere along the river, their position determined by their reverse dependencies. This post introduces the core concepts, but nothing more.

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This blog post outlines an idea for a service that informs people when their CPAN distributions gain reverse dependencies. Many authors are probably not even aware that their distributions have reverse dependencies, and what the implications of that can be. Sending them an email gives us a chance to congratulate and engage authors, but also to educate and encourage them in some new practices.

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This blog post outlines an idea for a service where people can register that they're using (i.e. dependent / reliant on) a CPAN distribution. This would provide additional information about which distributions underpin the Perl world, and if the registrants were contactable, it would help authors minimise breakages when making changes.

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There are quite a few CPAN dists on github that don't have the repo listed in the metadata. This post shows how to fix that for a dist that uses Module::Install. I hit various problems, so I'm writing down these notes for next time, and so that people can correct anything I got wrong.

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This is a quick look at the number of CPAN pull requests that were done in March. Ever-so slightly more than in February, but there were 3 more days.

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This evening I culled 80 participants in the Pull Request Challenge. These were people who had a January assignment but never did a pull request, and haven't replied to any of my subsequent emails. Culling them freed up 80 distributions to be assigned again in April.

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I've been asked a few times why the PR challenge only supports github, and not other repo sites. There are two main reasons: (1) it's by far the most popular, and (2) I have various scripts which use the GitHub API, and I'm too lazy to look into dealing with the other sites. Here are the stats to back up the first point.

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I've tweaked a few things in the past week, so they're all listed here: a new web site, changes in scoring, and a new hit list for getting dists on github.

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This is a quick look at the number of CPAN pull requests that were done in February. Not as many as January, but our second-highest month ever. And comparing against previous Februarys, looking pretty good.

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I get quite a few emails each week from participants in the pull request challenge 'complaining' that their assigned dist doesn't have bugs to fix. If you've got a dist with outstanding bugs, and it's not on github, adding it to github can increase the likelihood of at least some of those bugs getting fixed. Here I list the top 20 dists not on github, according to bug count.

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