Bug 276264 – sys-apps/portage-2.2_rc33 - eclass overlaying from "gentoo" to overlay needs to remove metadata cache

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Denis Kaganovich 2009-07-02 17:11:51 UTC]

sys-apps/portage-2.2_rc33: if I want use overlayed eclass for main repo (for example, kernel-2.eclass from "raw" overlay) - I must remove /usr/portage/metadata directory (every time after sync).

repos.conf:

[gentoo]
eclass-overrides = raw

Reproducible: Always

[Comment 1 Zac Medico 2009-07-04 10:05:29 UTC]

I think you just want to enable FEATURES=metadata-transfer. This is necessary due to a limitation in the cache format that is distirbuted in the metadata/cache/ directory (it doesn't store eclass validation data). In order to solve this problem, we need to extend the cache format as discussed in the "[RFC] DIGESTS metadata variable for cache validation" thread:

http://archives.gentoo.org/gentoo-dev/msg_cfa80e33ee5fa6f854120ddfb9b468b3.xml

[Comment 2 Zac Medico 2009-07-04 10:08:14 UTC]

I guess we need to say something about FEATURES=metadata-transfer in the part about repos.conf/eclass-overrides in the portage.5 man page.

[Comment 3 Denis Kaganovich 2009-07-04 15:56:44 UTC]

(In reply to comment #1)
> I think you just want to enable FEATURES=metadata-transfer. This is necessary

I know (something, not sense) about metadata-transfer. This is don't work here.

Now I test it again - enable metadata-transfer and "emerge --sync -q". To verify: "emerge -pv gentoo-sources" - no additional useflags from "raw" overlay.

May be better first add flag to prevent lookup metata cache? Just like it removed. At least to prevent downloading all cache every sync.

[Comment 4 Zac Medico 2009-07-04 19:02:08 UTC]

(In reply to comment #3)
> May be better first add flag to prevent lookup metata cache? Just like it
> removed. At least to prevent downloading all cache every sync.

Hmm, it seems that FEATURES=metadata-transfer doesn't really help you, so you should just disable it. Apparently the best solution for you is to set PORTAGE_RSYNC_EXTRA_OPTS="--exclude=/metadata/cache". That's seems like the only thing you can do until we extend the cache format as described in comment #1. So, I'll update portage.5 to recommend the rsync exclude when using eclass-overrides. You should also run emerge --regen after every sync.

[Comment 5 Zac Medico 2009-07-05 10:40:59 UTC]

In svn r13788 I've added a note to the portage.5 man page that eclass-overrides may make it necessary to set PORTAGE_RSYNC_EXTRA_OPTS="--exclude=/metadata/cache" in make.conf.

[Comment 6 Denis Kaganovich 2009-07-06 11:25:46 UTC]

(In reply to comment #5)
> In svn r13788 I've added a note to the portage.5 man page that eclass-overrides
> may make it necessary to set
> PORTAGE_RSYNC_EXTRA_OPTS="--exclude=/metadata/cache" in make.conf.
> 

Good.
And "rm /usr/portage/metadata/cache -Rf"

[Comment 7 Zac Medico 2009-07-30 23:10:00 UTC]

(In reply to comment #6)
> And "rm /usr/portage/metadata/cache -Rf"

Thanks, got that in r13864.

[Comment 8 Zac Medico 2009-08-03 23:12:14 UTC]

This is fixed in 2.2_rc34.

[Comment 9 Zac Medico 2009-10-11 00:55:00 UTC]

This is fixed in 2.1.7.

[Comment 10 Zac Medico 2009-11-20 05:05:01 UTC]

*** Bug 291951 has been marked as a duplicate of this bug. ***