[racket-dev] Planet 2 Beta Release

From: Carl Eastlund (cce at ccs.neu.edu)
Date: Thu Nov 8 17:36:24 EST 2012

The original Planet had explicit rules for versions, and in practice I
found they got in the way almost as often as they helped.  Worse, when they
did get in the way, there was no way around them.  I have not looked at
Planet 2 in detail yet, but it looks like it has a simpler model where
versions are dealt with directly by maintainers and clients.  So while
Planet 2 isn't doing the work for you, it's also not keeping you from doing
what you want/need to do.

This isn't ideal -- I'd really like a system that does all the nice things
you mention, Tobias -- but only once someone has a design that really gets
it "right".  Until then, I'd much rather have my options open and a system
that stays out of my way.

Carl Eastlund

On Thu, Nov 8, 2012 at 5:22 PM, Tobias Hammer <tobias.hammer at dlr.de> wrote:

> Just out of curiosity: What are your / the teams objections against some
> kind of real versioning system that allows to
> * specify a version number without creating a new package
> * specify dependencies based on minimal version
> * keep/pin a package at some particular version (maybe your code
>   depends on an exact, even buggy behavior)
> * keep directory and file names between incompatible versions
>   without getting banned from solar
> What made me also wonder when i read the docs is, why is it allowed to
> have packets that have the same directories as the core racket
> distribution?
> Tobias
> On Thu, 08 Nov 2012 14:16:58 +0100, Jay McCarthy <jay.mccarthy at gmail.com>
> wrote:
>  Now that the 5.3.1 release is finished, I've just pushed the beta release
>> of Planet 2 to the Racket core.
>> I've tried to answer all questions and explain everything about Planet 2
>> in
>> the documentation, which I've uploaded a copy of here:
>> http://faculty.cs.byu.edu/~**jay/tmp/20121108-pkgs/planet2/**index.html<http://faculty.cs.byu.edu/%7Ejay/tmp/20121108-pkgs/planet2/index.html>
>> In particular, it explains what the plan is to go from this beta release
>> to
>> the final release.
>> If you currently have packages on Planet 1, I am excited to help you make
>> the transition to Planet 2. (I am currently in the process of converting
>> my
>> packages.) Please do not hesitate to let me know how I can help.
>> This represents the third iteration of the design of Planet 2. (The first
>> was worked on from August 10, 2010 to March 11, 2011. The second in July
>> 2011. The third from August 2011 until now, although coding didn't begin
>> until December 2011.)
>> Enjoy,
>> Jay
>> p.s. In the implementation, I'm particularly proud of the little language
>> for defining command-line interfaces with matching functions (see
>> planet2/main.rkt for a use) and the testing infrastructure that allows you
>> to run sequences of shell commands and check their output (see
>> tests/planet2/tests-install.**rkt for a nice example.)
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