[gentoo-dev] Modular X porting: dependency changes

[gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Because portage treats the default virtual differently than I was
previously led to believe, everybody who's ported a package to modular X
so far will need to make a small change.

It's really easy, but it might take a bit of time to go through your
packages.

Here's the change:
	"virtual/x11" -> "<=x11-base/xorg-x11-6.99"

This is because portage doesn't do a sanity check for the PROVIDES flag
on the default provider of a virtual.

Thanks for your time,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Diego 'Flameeyes' Pettenò]

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On Monday 21 November 2005 21:50, Donnie Berkholz wrote:
> Here's the change:
>         "virtual/x11" -> "<=x11-base/xorg-x11-6.99"
Is this the last change? :)
Just to make sure, I received the broken pieces of the "old" method, so I 
don't really want to take them from the new one, too ;)

-- 
Diego "Flameeyes" Pettenò - http://dev.gentoo.org/~flameeyes/
Gentoo/ALT lead, Gentoo/FreeBSD, Video, AMD64, Sound, PAM, KDE

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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Diego 'Flameeyes' Pettenò wrote:
| On Monday 21 November 2005 21:50, Donnie Berkholz wrote:
|
|>Here's the change:
|>        "virtual/x11" -> "<=x11-base/xorg-x11-6.99"
|
| Is this the last change? :)
| Just to make sure, I received the broken pieces of the "old" method, so I
| don't really want to take them from the new one, too ;)

That will be purely determined by whether people encounter problems with
this change as well. =)

I hope every change is the last change, as far as this is concerned.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Carsten Lohrke]

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On Monday 21 November 2005 21:50, Donnie Berkholz wrote:
> Here's the change:
> 	"virtual/x11" -> "<=x11-base/xorg-x11-6.99"

virtual/x11 isn't xorg for all profiles. 


Carsten

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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Carsten Lohrke wrote:
| On Monday 21 November 2005 21:50, Donnie Berkholz wrote:
|
|>Here's the change:
|>	"virtual/x11" -> "<=x11-base/xorg-x11-6.99"
|
|
| virtual/x11 isn't xorg for all profiles.

Perhaps the relevant people (macos?) could get in touch with me, and we
can figure out what needs to happen.

It may be that we'll need to add x11-base/apple-xfree into the || list
as well. Using the virtual is not an option right now, because of the
previously mentioned bug.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Joshua Baergen]

Donnie Berkholz wrote:
> It may be that we'll need to add x11-base/apple-xfree into the || list
If the list keeps growing maybe we should consider a GLEP 37-style 
solution, like was suggested by Jason. It would allow us to make any 
further changes that are required (agreed, hopefully none) without 
having to change a bunch of packages in the tree.

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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Joshua Baergen wrote:
| If the list keeps growing maybe we should consider a GLEP 37-style
| solution, like was suggested by Jason. It would allow us to make any
| further changes that are required (agreed, hopefully none) without
| having to change a bunch of packages in the tree.

OK, we might as well look into it to see whether it's something we can
get going within the next 2 weeks, which is about when 7.0 will be released.

Jason, could you help us out? I CC'd you to make sure you'd read this.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Doug Goldstein]

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Donnie Berkholz wrote:
> Joshua Baergen wrote:
> | If the list keeps growing maybe we should consider a GLEP 37-style
> | solution, like was suggested by Jason. It would allow us to make any
> | further changes that are required (agreed, hopefully none) without
> | having to change a bunch of packages in the tree.
> 
I thought GLEP 37 was a way out kind of thing. Like several months if
not a year before it can be done.

Here's a horrible suggestion for if all else fails... have the
monolithic Xorg or xfree ebuilds PROVIDE the modular components. Then
only have modular depends in the tree.
-- 
Doug Goldstein <cardoe@gentoo.org>
http://dev.gentoo.org/~cardoe/

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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

Doug Goldstein wrote:
> I thought GLEP 37 was a way out kind of thing. Like several months if
> not a year before it can be done.

I figured about the same, but 
https://bugs.gentoo.org/show_bug.cgi?id=112896#c16 begs to differ.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Jason Stubbs]

On Wednesday 23 November 2005 00:46, Donnie Berkholz wrote:
> Doug Goldstein wrote:
> > I thought GLEP 37 was a way out kind of thing. Like several months if
> > not a year before it can be done.
>
> I figured about the same, but
> https://bugs.gentoo.org/show_bug.cgi?id=112896#c16 begs to differ.

The glep was originally posted 30th April...

The idea was already fairly solid at that time and required minimal changes to 
portage for it to "just work". Pretty much only one actually - the hardcoded 
'sanity check' of not being able to install packages of category "virtual" 
was removed. Hence, as per the backwards compatibility section of the glep, 
all current portages are capable of handling virtuals that are regular 
packages. The largest holdup was waiting for backwards compatibility to 
become viable.

There are really only two other parts to the glep; consistency checking and 
user overrides. The current method of overriding will still work fine and 
only becomes an issue when the first virtual that covers a set of packages 
comes into existence. As for consistency checking, it has a relatively small 
chance of being useful in my opinion. Take the following:

# emerge virtual/x11
# emerge -C x11-base/xorg-x11
# emerge x11-libs/qt
(Whoops!)

In other words, it's a situtation that is possible already. The solution is to 
always use --deep when calculating dependencies, which I'm working on at the 
moment. There are a couple of other portage-side implementation issues that 
have come up, but the more difficult ones have become clearer over time. I'll 
dust of the GLEP and repost it later this week and see if we can't get it 
finalized...

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Re: [gentoo-dev] Modular X porting: dependency changes

[Grobian]

On 21-11-2005 19:15:58 -0800, Donnie Berkholz wrote:
> | virtual/x11 isn't xorg for all profiles.
> 
> Perhaps the relevant people (macos?) could get in touch with me, and we
> can figure out what needs to happen.
> 
> It may be that we'll need to add x11-base/apple-xfree into the || list
> as well. Using the virtual is not an option right now, because of the
> previously mentioned bug.

OSX doesn't have Xorg (yet?), so it would indeed cause some trouble for
us right now.  Since we're outnumbered here, I'd vote to make the
change that is compatible with the majority of users right now.  I'm
affraid it would just boil down to dropping the ppc-macos keyword on
those packages that get xorg dependency.  The mentioned || list is an
issue for more than xorg, so it should be considered some more IMHO.
Kito, can you agree with this, or do you have another 'solution'?

-- 
Fabian Groffen
Gentoo for Mac OS X Project -- Interim Lead
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Re: [gentoo-dev] Modular X porting: dependency changes

[Lina Pezzella]

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On Nov 22, 2005, at 4:13 AM, Grobian wrote:

> On 21-11-2005 19:15:58 -0800, Donnie Berkholz wrote:
>> | virtual/x11 isn't xorg for all profiles.
>>
>> Perhaps the relevant people (macos?) could get in touch with me,  
>> and we
>> can figure out what needs to happen.
>>
>> It may be that we'll need to add x11-base/apple-xfree into the ||  
>> list
>> as well. Using the virtual is not an option right now, because of the
>> previously mentioned bug.
>
> OSX doesn't have Xorg (yet?), so it would indeed cause some trouble  
> for
> us right now.  Since we're outnumbered here, I'd vote to make the
> change that is compatible with the majority of users right now.  I'm
> affraid it would just boil down to dropping the ppc-macos keyword on
> those packages that get xorg dependency.  The mentioned || list is an
> issue for more than xorg, so it should be considered some more IMHO.
> Kito, can you agree with this, or do you have another 'solution'?

I would want to know exactly how many keywords would be dropped with  
this solution. I would hate to see something that is working  
perfectly fine having support dropped due to syntax troubles in an  
ebuild...

- --Lina Pezzella
Gentoo Developer



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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Lina Pezzella wrote:
| I would want to know exactly how many keywords would be dropped with
| this solution. I would hate to see something that is working  perfectly
| fine having support dropped due to syntax troubles in an  ebuild...

Portage's lack of sanity checks is completely unrelated to syntax troubles.

As far as progress on this issue, we're looking into adopting glep 37
and creating a virtual/x11 ebuild to address this.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Donnie Berkholz wrote:
| As far as progress on this issue, we're looking into adopting glep 37
| and creating a virtual/x11 ebuild to address this.

I've just committed virtual/x11 to the tree. See
https://bugs.gentoo.org/show_bug.cgi?id=112896 if you run into any
problems with it.

It won't work properly with macos yet because they use a "fake" package,
so they'll have to hang on to virtual/x11 in the profiles.

I plan to remove the virtual/x11 definition from base/virtuals in a
couple of days, because this should provide a full (and non-broken)
replacement.

To return to the original issue, this means the "virtual/x11" remains
the correct way to specify modular dependencies and "<=6.99" should not
be used.

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Jason Stubbs]

On Wednesday 07 December 2005 17:03, Donnie Berkholz wrote:
> Donnie Berkholz wrote:
> | As far as progress on this issue, we're looking into adopting glep 37
> | and creating a virtual/x11 ebuild to address this.
>
> I've just committed virtual/x11 to the tree. See
> https://bugs.gentoo.org/show_bug.cgi?id=112896 if you run into any
> problems with it.
>
> It won't work properly with macos yet because they use a "fake" package,
> so they'll have to hang on to virtual/x11 in the profiles.

It should work if the listed package matches what the macos profiles have in 
package.provided...

> I plan to remove the virtual/x11 definition from base/virtuals in a
> couple of days, because this should provide a full (and non-broken)
> replacement.

This can be easily tested in advance by adding the following:

# cat /etc/portage/profile/virtuals
virtual/x11     -*

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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

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Jason Stubbs wrote:
| On Wednesday 07 December 2005 17:03, Donnie Berkholz wrote:
|
|>Donnie Berkholz wrote:
|>| As far as progress on this issue, we're looking into adopting glep 37
|>| and creating a virtual/x11 ebuild to address this.
|>
|>I've just committed virtual/x11 to the tree. See
|>https://bugs.gentoo.org/show_bug.cgi?id=112896 if you run into any
|>problems with it.
|>
|>It won't work properly with macos yet because they use a "fake" package,
|>so they'll have to hang on to virtual/x11 in the profiles.
|
|
| It should work if the listed package matches what the macos profiles
have in
| package.provided...

Please do try adding the section and running repoman, then, from an x86
profile.

|>I plan to remove the virtual/x11 definition from base/virtuals in a
|>couple of days, because this should provide a full (and non-broken)
|>replacement.
|
|
| This can be easily tested in advance by adding the following:
|
| # cat /etc/portage/profile/virtuals
| virtual/x11     -*

Well, I've already tested locally by just removing the line from
base/virtuals. But yes, that does sound like a nice, non-overwritable
way to do it. =)

Thanks,
Donnie
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Re: [gentoo-dev] Modular X porting: dependency changes

[Donnie Berkholz]

Donnie Berkholz wrote:
> I plan to remove the virtual/x11 definition from base/virtuals in a
> couple of days, because this should provide a full (and non-broken)
> replacement.

Done.

I will probably do similar for the other x11 virtuals (particularly xft) 
soon, assuming this doesn't break too badly.

Thanks,
Donnie
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