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From: "Sebastian Werner" <sebastian@werner-productions.de>
To: <gentoo-dev@gentoo.org>
Subject: AW: [gentoo-dev] USE database?
Date: Mon, 3 Dec 2001 08:41:31 +0100
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Hey,
I like your idea. I have the same problems with the many variables I
could set. Some other idea I think could be good is to store the data
with gconf or something else (a binary registry - like windows but
better).
Sebastian Werner
-----Urspr=FCngliche Nachricht-----
Von: gentoo-dev-admin@gentoo.org [mailto:gentoo-dev-admin@gentoo.org] Im
Auftrag von Zach Forrest
Gesendet: Montag, 3. Dezember 2001 02:07
An: gentoo-dev@gentoo.org
Betreff: [gentoo-dev] USE database?
Hi. I've just signed up to the mailing list and wanted to put in my 2^n=20
cents. I've just switched over from Debian and am very impressed with=20
the Portage system and find administration and configuration to be very=20
straight forward and enjoyable. I have learned a great deal about Linux=20
in general during the transition (which is almost done -- I think). So,=20
without further adieu....
One thing I think needs some refinement is the USE system. I was=20
thinking that using a format that is more strict would allow for more=20
flexibility and make it easier to automate both the process of=20
generating the make.conf file and for tools to administer the USE=20
variables. It may also allow for some improvements in the Portage system
as well.
Using the docs in make.conf as the starting point, I think it would make
sense to have a simple database format, or, if using python a list of=20
dictionaries. For example, one entry might look like this:
use_var=3D{"name":"esd",
"description":"Enable enlightenment sound daemon support.",
"priority":"OPTIONAL",
"depends":"media-sound/esound"}
where:
priority =3D> RECOMMENDED | REQUIRED | OPTIONAL | STANDARD |
EXPERIMENTAL | DEPRECIATED | DONTUSE | CANNOTLIVEWITHOUT
depends =3D> packages required to satisfy the USE variable
Note the "depends" entry. This may allow the Portage system to become=20
more flexible. Rather than just silently checking for use flags it may=20
be nice to let the user know which USE variables are supported and=20
possibly give the option to install supported packages, easily located=20
through the "depends" field in the "database". This might serve as=20
something similar to the Debian "recommended" package option. Maybe=20
including a USE or OPTIONAL flag in the ebuild file that lists all of=20
the possible USE options could be added.
Also, maybe adding a "--satisfyuse" flag to the ebuild/emerge command.
I know Gentoo is designed for more advanced users and what I have=20
described may seem gratuitous, but I think it might make things easier=20
in the long run. (Also, even advanced users can do with a _little_=20
convenience.)
It may, then, also make sense to give a little more structure to the=20
optimization settings. For example:
optimization_var=3D{
"host":"i686",
"chost":"i686-pc-linux-gnu",
"cflags":"-mcpu=3Di686 -march=3Di686 -O3 -pipe",
"cxxflags":"-mcpu=3Di686 -march=3Di686 -O3 -pipe"}
where:
host =3D> i386 | i486 | i586 | i686 | k6 | athalon [ | ppc ]
And, for the sake of completeness, why not the FETCHCOMMAND:
fetch_cmd=3D{
"name":"Lukemftp",
"command":"/usr/bin/lukemftp -s -a -o \${DISTDIR}/\${y} \${x}"}
If I recall correctly, my inspiration for all of this was when, during a
recent update, I noticed that some new USE variables were available. I=20
found it annoying to see which ones I had already included (searching=20
through my long and possibly overkill USE string) and if there were any=20
new ones that I wanted. Then I thought, "Gee, wouldn't a nice ncurses=20
interface be great -- a couple of check boxes and then I have more time=20
to attend to something only a little more important?"
As this is my first (and hopefully longest) message please give me some=20
feedback, both good and bad -- I can take it.
I am thoroughly enjoying Gentoo Linux. Thank you to everyone.
Regards,
Zach Forrest
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