[Haskell-cafe] Idea for a tool

[Michael Snoyman]

Well, here's an initial, ugly version of this tool. Feed it two
command line arguments: a cabal file, and the 00-index.tar file in the
.cabal/packages/hackage.haskell.org folder. More work to follow.

Michael

On Wed, Oct 20, 2010 at 12:25 PM, Neil Mitchell <ndmitchell at gmail.com> wrote:
> 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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>