[Haskell-cafe] Idea for a tool

Neil Mitchell ndmitchell at gmail.com
Wed Oct 20 06:25:31 EDT 2010

Hi Michael,

I want this tool. I fake it slightly by using my RSS reader and
http://page2rss.com/ to get notified when any packages I depend on
change, which basically works - but if you could provide a better
service (ideally integrated in to hackage), I'd use it.

Thanks, Neil

On Wed, Oct 20, 2010 at 8:27 AM, Bas van Dijk <v.dijk.bas at gmail.com> wrote:
> On Wed, Oct 20, 2010 at 7:36 AM, Michael Snoyman <michael at snoyman.com> wrote:
>> Hi all,
>> I saw a quote from Eric Kow via Neil Mitchell[1] that we don't spend
>> enough time writing tools. Well, I've decided that the most annoying
>> part of package maintainership right now is staying on top of new
>> versions of dependencies. We essentially have two options right now:
>> * Follow the PVP and put an upper bound on all dependencies, and
>> people will be upset when your package only works with the old version
>> of the dependency.
>> * Skip the upper bound, and risk having your code break when there's a
>> new version.
>> I have an idea for a tool: you give it a list of packages you
>> maintain, or even better yet, you give it your email address and it
>> gets that list automatically. Then is looks through all your
>> dependencies and sees if you have any upper bounds preventing newer
>> versions from being used. Bonus points for making it a web service
>> that just gives you an RSS feed.
>> If anyone's interested in writing a tool like that, let me know.
>> Otherwise, next time I'm twiddling my thumbs I'll try to throw it
>> together. I've never dealt directly with the Cabal library, but
>> there's a first time for everything. If someone else wants to write
>> that tool and wants help sticking a web service on it, let me know.
>> Michael
>> [1] http://neilmitchell.blogspot.com/2010/10/enhanced-cabal-sdist.html
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> This would be a nice feature for the new hackage server:
> http://sparky.haskell.org:8080
> Bas
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