Gentoo Archives: gentoo-portage-dev

From: Zac Medico <zmedico@g.o>
To: gentoo-portage-dev@l.g.o
Subject: Re: [gentoo-portage-dev] custom profiles?
Date: Sat, 14 Mar 2015 18:57:31
Message-Id: 55048496.4040707@gentoo.org
In Reply to: Re: [gentoo-portage-dev] custom profiles? by Joakim Tjernlund
1 On 03/14/2015 11:41 AM, Joakim Tjernlund wrote:
2 > On Sat, 2015-03-14 at 11:08 -0700, Zac Medico wrote:
3 >> On 03/14/2015 09:12 AM, Joakim Tjernlund wrote:
4 >>> On Wed, 2015-03-11 at 13:43 -0700, Zac Medico wrote:
5 >>>> On 03/11/2015 01:16 PM, Joakim Tjernlund wrote:
6 >>>>> On Wed, 2015-03-11 at 10:56 -0700, Zac Medico wrote:
7 >>>>>> On 03/11/2015 08:48 AM, Joakim Tjernlund wrote:
8 >>>>>>> On Sun, 2015-03-08 at 11:58 -0700, Zac Medico wrote:
9 >>>>>>>> On 03/08/2015 10:01 AM, Joakim Tjernlund wrote:
10 >>>>>>>>> On Sun, 2015-03-08 at 15:47 +0000, Joakim Tjernlund wrote:
11 >>>>>>>>>>
12 >>>>>>>>>> package.use/package.use.force is a bit different though:
13 >>>>>>>>>> cat /etc/portage/package.use/qemu
14 >>>>>>>>>> app-emulation/qemu vde -alsa -pulseaudio -bluetooth -opengl qemu_user_targets_x86_64 xattr
15 >>>>>>>>>> virtfs
16 >>>>>>>>>> static-
17 >>>>>>>>>> user
18 >>>>>>>>>>
19 >>>>>>>>>> #Needed by static-user
20 >>>>>>>>>> sys-libs/zlib static-libs
21 >>>>>>>>>> dev-libs/glib static-libs
22 >>>>>>>>>> sys-apps/attr static-libs
23 >>>>>>>>>>
24 >>>>>>>>>> Moving this to package.use/package.use.force does not respect -alsa, -pulseaudio, -opengl
25 >>>>>>>>>> all
26 >>>>>>>>>> flags which has a - on them, emerge wants to turn them on again.
27 >>>>>>>>>>
28 >>>>>>>>>> Am I missing something?
29 >>>>>>>>>> Using portage 2.2.18
30 >>>>>>>>>
31 >>>>>>>>> Appears one have to use package.use.mask for that.
32 >>>>>>>>> cat package.use.mask
33 >>>>>>>>> app-emulation/qemu alsa pulseaudio bluetooth opengl
34 >>>>>>>>> It would be handy if one could use the same syntax as in /etc/portage/package.use/qemu(-alsa -
35 >>>>>>>>> opengl
36 >>>>>>>>> etc.)
37 >>>>>>>>>
38 >>>>>>>>> Jocke
39 >>>>>>>>>
40 >>>>>>>>
41 >>>>>>>> Yes, the inverted use.mask logic can be confusing if you are not familiar with it. The negative
42 >>>>>>>> flags
43 >>>>>>>> have a
44 >>>>>>>> special meaning within the context of of portage's "incremental stacking" behavior, so they can
45 >>>>>>>> still
46 >>>>>>>> be
47 >>>>>>>> useful, though not in the same way that you you attempted to use them.
48 >>>
49 >>> Just noticed that USE flags in profiles/package.use.mask override everything so this
50 >>> USE=thin emerge -av sys-fs/lvm2
51 >>> will not turn on thin if thin is in profiles/package.use.mask
52 >>> How can just change the default so a user can easily turn it on ?
53 >>
54 >> Generally, setting the USE environment variable like that is poor practice, because the setting will not
55 >> persist the next time that you rebuild the package. So, you should set the flag in
56 >
57 >
58 > I know, this was just an example to illustrate that it did not work.
59 >
60 >> /etc/portage/package.use. You can unmask the flag for lvm2 like this:
61 >>
62 >> echo "sys-fs/lvm2 -thin" >> /etc/portage/profile/package.use.mask
63 >
64 > You misunderstand, I have "sys-fs/lvm2 thin" in /etc/portage/profile/package.use.mask
65 > and I want a user to able to override this setting, using USE=".." or adding it
66 > to their local /etc/portage/package.use file/dir
67
68 There's no other way to negate a use mask than to use
69 /etc/portage/profile/{use.mask,package.use.mask} as I have described. I
70 don't think that it makes much sense to negate a use mask for a single
71 emerge invocation. If you want to do that, then why is the use flag
72 masked anyway?
73 --
74 Thanks,
75 Zac

Replies

Subject Author
Re: [gentoo-portage-dev] custom profiles? Joakim Tjernlund <joakim.tjernlund@×××××××××.se>