[gentoo-dev] New eclass to support java-virtuals

[Alistair Bush]

I would like to commit a new java eclass within the next week.

This eclass is designed to support the functionality that Betelgeuse
outlined within a previous post.[1]

As you will be able to see, this eclass is very simple and only uses
functionality that will be provided by the java-utils-2.eclass (see the
attached patch )

Basically all the happens is that a file is created under
/usr/share/java-config-2/virtuals/
that contains (at present) 3 variables.  This file is then read by our
java-config-2 application.


The eclass is currently implemented within the java-virtuals overlay for
those who are interested

https://overlays.gentoo.org/svn/proj/java/java-virtuals/


Any suggestions, improvements and of course approvals will be gladly
accepted

Go the All Blacks!!

Alistair


[1] http://thread.gmane.org/gmane.linux.gentoo.devel/48932/focus=48933

On Sun, 29 Apr 2007 17:00:09 +0200, Petteri Räty wrote:

> We want to implement virtuals for Java at some point and for that we
> need to know the package that provides the virtual because some virtuals
> can be provided by the JDK or normal packages and this affects the JDK
> selection at build time. One option is to call into Portage to find this
> out, but of course Paludis and Pkgcore people most likely don't like
> this approach. One thing that comes to mind is to allow for virtuals to
> install files so we can install the provider information in a format
> easy for us. We need the information in format ${PN}-${SLOT} because
> that's the way we install in /usr/share. So do you think it's ok for
> virtuals to install files (we can of course call the category
> java-virtual/ too), should we call Portage code, or do you have an
> another idea?