Re: porters tricks

On Thu, Jun 28, 2018 at 06:55:45PM -0300, Elias M. Mariani wrote:
> Hi Mark,
> Maybe I missed the mail or something, but could you also comment about
> the new "@tag" thingy that I saw working on ?
> I'm just porting LXQt and I see that is related for example with the
> desktop updates.
>
> Cheers.
> Elias.

Yeah, portcheck will now do the right thing.

Basic current mechanism is discussed in pkg_create(1)

I wrote an email you can find on the ports archive recently.

@tag update-desktop-database
for now.

I'm slowly converting other @exec remnants that apply to it.

The idea is to make packages "extensible" to new directories and file types
(we do have builtin support for @lib/@font/@info/@man...)

@tag are actually annotations that may be related to current context
(like for @exec, tags can be linked to the most recent file/directory)
and are meant to be used to give extra semantics to package contents that
are related to another installed package.

For now, only
@define-tag update-desktop-database at-end %D/bin/update-desktop-database
...

@tag update-desktop-database

is used, but there lots more at-end @define-tags on the way,

and more semantics for later.

Eventually, it should replace most @exec/@unexec in the ports tree to
something better.


RPMs has a global mechanism that serves similar purposes (triggers) but
the semantics is completely different, and I hope that @tags will prove
to work better :)