Hi

On Sat, Feb 4, 2012 at 12:49 AM, Sergiu Dumitriu <[email protected]> wrote:
> Hi devs,
>
> I'd like to have an early decision on what (bigger) dependencies should be
> upgraded in the next release cycle.
>
> A) HTML 5. Already proposed by Jerome. This is something that has a
> continuous aspect, since "switching to HTML5" can be something as simple as
> writing a smaller DOCTYPE, or can go to rewriting the entire templates and
> rendering engine. We'll start small and improve things as we go.

+1

I believe the HTML5 renderer is a mandatory step though ; otherwise we
will generate unvalid markup. For example <tt> does not exists anymore
in HTML5, yet it is generated by the XHTML/1.1 rendered.


>
> B) Hibernate 4. Will require some code changes since we're using a few
> deprecated APIs that have been removed in 4.0.
>
> C) Struts 2. We could move away from Struts completely at some point, but
> until we have the time to implement our own action mechanism, a good step
> forward is upgrading to a newer version of Struts.
>
> D) Velocity Tools 2. I'm not quite happy with how version 2.0 is packaged,
> since it brings in a dependency on Struts 2, but 2.1 isn't planned yet.
> Alternatively, we could package our own subset of velotools, since we're
> only using the generic tools, not VelocityView or VelocityStruts.
>
> E) Servlets 3.0. Since we're using Java 1.6, we could also require a
> servlet-3.0 capable container. This will give us more flexibility in
> defining servlets and filters, since the 2.4 versions we're using now
> requires a central web.xml file. The problem is that only the most recent
> versions of the popular servlet containers are compatible: Jetty 8, Tomcat
> 7, Glassfish 3, WebSphere 8, WebLogic 12. Oracle Application Server doesn't
> provide a version compatible with servlets 3.0, but this server is
> discontinued anyway. This means that users on older Linux server versions
> will have to install Tomcat 7 manually.
>
> F) Jetty 8. This is required for Servlets 3.0, but it would be a good
> upgrade on its own.
>
> G) HSQLDB 2. Better for performance.
>
> H) Lucene 3.5, Tika 1.0. Upgrading Lucene shouldn't be a problem, but an
> early attempt at using Tika 1.0 didn't work, it would require some time to
> debug it.
>
> I). Sass, Less or something like that. Personally I'm against this, since
> we're already providing support for most of their benefits by including
> Velocity code in CSS files. Does anybody else consider that we should
> include a CSS framework?

I'm +1 for this.

You can potentially achieve some of the benefits those frameworks do
provide using velocity, but I don't think this is the right approach.
There are some feature you will not be able to emulate elegantly with
velocity, like mixins [1] or nested rules [2]. Similarly, you would
have to write a complete velocity tool to emulate what color functions
brings out of the box and with a "natural" syntax [3].
Now, that said, I'm personnaly even more interested in bringing such
pre-processing power to skin extensions than bringing them to skin
stylesheets - I'm not writing them ;). Some time ago I've started
working on this on a branch on my fork [4], but it's not quite ready
yet.

Jerome

[1] http://lesscss.org/#-mixins
[2] http://lesscss.org/#-nested-rules
[3] http://lesscss.org/#-color-functions
[4] https://github.com/jvelo/xwiki-platform/tree/sx-preprocessors

>
> J) Joda Time 2 and Quartz 2, and maybe freshen up the plugins that use them.
>
> WDYT?
> --
> Sergiu Dumitriu
> http://purl.org/net/sergiu/
> _______________________________________________
> devs mailing list
> [email protected]
> http://lists.xwiki.org/mailman/listinfo/devs



-- 
Jérôme Velociter
Winesquare
http://www.winesquare.net/
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