[Slackbuilds-users] requirements in README files

[Greg' Ar Tourter]

sbopkg has a queue file facility which allows your to create list  of
package to build in a certain order. Mauro used to maintain a
repository of queue file for all packages available in slackbuilds.org
but I suspect he has been busy with other things lately. you can get
the queue files from http://gitorious.org/sbopkg-slackware-queues/.

Adding dependency management is the not slackware way of doing thing
and it is a can of worm that most people here would not want to see
open. Slackbuilds.org follows very closely the way Slackware works and
the slack-required file is not part of slackware package standard and
therefore doesn't really have a place in the slackbuild packages made
available here.

As T3slider mentions, dependency  resolution is extremely complex and
rarely done well. In addition to optional vs mendatory dependency,
some compile options may be required for some and not for other. (I am
thinking in particular about some package which will not build if wx
widgets is compiled with UTF-8 support).

ArTourter

On 9 July 2012 21:56, T3slider <t3slider at gmail.com> wrote:
> See here: http://slackbuilds.org/faq/#deps
> The omission of parsable information is an intentional one as far as I
> know. In order for dependency resolution to come to SBo, there would
> need to be a way of identifying mandatory vs. optional dependencies.
> Additionally, if there is special information regarding a certain
> application or SlackBuild (for example, if a unique user is
> needed/advised to build/run the application) then this would be
> impossible to portray in a parsable format. Significant planning is
> required to produce a good template to follow that provides for all of
> the complications of dependency resolution, and further, another level
> of verification on the behalf of the SBo admins would be required to
> ensure that this information is correct.
>
> slackbuilds.org is not setup to be a do-everything script repository --
> users are expected to read the README files. If you are blindly
> accepting the options given by a dependency resolver, then you likely
> have not read the READMEs and are expecting everything to just work.
> With sbopkg I currently have no need for anything more sophisticated --
> I can read the README for each element, ensure that requirements are
> met, and just add each dependency to a queue. I don't know what you're
> doing but it certainly doesn't take me hours to do, with the possible
> exception of setting up my system after a new Slackware release, which
> requires going through a whole new SBo repository and making sure things
> will work (and waiting for things to compile). And if you really are too
> lazy to read the READMEs there are queuefiles available already.
>
> I maintain only a few SlackBuilds but in those there is information that
> I cannot accurately portray in a standardized format (for example,
> remind has tons of configure options, and a *run-time* dependency that
> may or may not be needed depending on your needs). If you're not reading
> the READMEs for a SlackBuild then you're asking for trouble. Your
> solution may work for trivial software but in the real world dependency
> resolution requires an awful lot of work.
>
> On Mon, Jul 09, 2012 at 03:24:52PM -0500, J wrote:
>> Quoting Doogster <thedoogster at gmail.com>:
>>
>> >You're trying to parse requirements out of README files?
>> >
>> >Are you trying to to write something like Portage for SBo?
>>
>> No, something like FreeBSD's pkgtools:
>>
>> http://dawnrazor.net/sbotools/
>>
>>
>> Quoting Yaroslav Panych <panych.y at gmail.com>:
>>
>> >I am absolutely against of such enforcement. Because next step will be
>> >automatic dependency resolver and I don't think somebody wants it.
>>
>> This is a leap of login akin to saying that publicly available
>> condoms will lead to no children being born. I have written the
>> option to parse requirements into sbotools because the current
>> method - look up sbo, find list of requirements, open new tab, look
>> up requirement, find list of requirements, etc etc, is a usability
>> and sanity failure. The fact is that the sort of consistency in the
>> READMEs in which I'm interested is good for the users who don't care
>> to utilize such an option as well, because it's easier to identify -
>> pattern recognition, basic human interface to the world.
>>
>> >think it will bring more harm than profit. I know how hard to
>> >determinate requirements manually, but I sure it worth to do. It will
>> >filter noobs aside(less noobs - less maintainers headache, less
>> >maintainers headache - better maintainer work).
>>
>> Requirements would still be determined manually. The only change I
>> am proposing is consistency in documenting them.
>>
>> Quoting Hullen at t-online.de (Helmut Hullen):
>>
>> >The README is created from the author/maintainer of the program. The SBO
>> >maintainer should not change it.
>>
>> And yet, other parts of slackbuilds will get changed by maintainers.
>>
>> >>This requires perl-Params-Validate, perl-DateTime-Locale,
>> >>perl-DateTime-TimeZone, perl-Test-Exception, perl-Sub-Uplevel
>> >>perl-Math-Round.
>> >
>> >That's another problem - these informations should be put into "install/
>> >slack-required". And that could be a job for the SBO maintainer.
>>
>> These would be a valid solution, but I'm not sure it makes a lot of
>> sense, personally. It not only duplicates the data, but I'm
>> apparently the only person who is dead sick and tired of crawling
>> through 20 tabs of slackbuilds to get the requirements together for
>> a single one, and who doesn't feel that sbopkg and queue files are a
>> solution that fits the problem. And that's fine, and doesn't warrant
>> an individual file - though it would be nice. But consistency
>> amongst READMEs is easy to achieve, better for usability, and as
>> noted, there is already a precedent since other files will get
>> edited.
>>
>> J
>>
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