Re: [Haskell-cafe] State of the Hackage: Q1, Q2 2010

On Thu, Jul 1, 2010 at 4:26 PM, Bas van Dijk wrote:

On Thu, Jul 1, 2010 at 6:50 PM, Don Stewart wrote:

...

I think we need to standardise the presentation of this data, and provide a lib to access it.

This, together with reverse dependencies[1], would be a nice feature for the upcoming hackage-server.

Regards,

Bas

[1] http://bifunctor.homelinux.net/~roel/hackage/packages/archive/revdeps-list.h...

It would be! Presently, in hackage-server, modules can sign up for an IO hook that executes whenever a package is downloaded. Here's what's left to do: 1. Make a data structure that has all of the download information in a useful form, with a feature that updates it (including csv backup) 2. Write a parser to migrate Apache logs to this form (didn't Galois already write a parser, actually? [1]) 3. Establish a URI from which Hackage dumbly serves the download data (as html, json, etc.) for anyone to study 4. Eventually, analyze the data server-side to add useful bits of information to the package index And there's also an upload hook, like hackage-scripts has, so reverse dependencies can be updated. —Matt Gruen [1] http://www.galois.com/blog/2009/03/23/one-million-haskell-downloads/