[gentoo-dev] [RFC] New RESTRICT=live value for identification of live ebuilds?

[Zac Medico]

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Hi everyone,

It might good to add support for a new RESTRICT=live value in
ebuilds. By specifying this value, an ebuild would be able to
indicate that it uses src_unpack() to download sources from some
type of live repository such as cvs, darcs, git, mercurial, or svn.

This new RESTRICT=live value would be useful in at least a couple of
ways. One is that it could be used to implement a @live-rebuild
package set that's based on RESTRICT instead of INHERITED [1]. It
could also be used to implement a more accurate LIVEVCS.stable check
in repoman, again based on RESTRICT instead of INHERITED [2].

We already have plans for more advanced live ebuild support,
including live update detection, that will involve an EAPI bump [3].
However, the RESTRICT=live value is a simple enhancement that we can
add now, without the need for an EAPI bump. Thoughts?

Zac

[1]
http://planet.gentoo.org/developers/zmedico/2008/07/31/live_rebuild_package_set
[2] http://sources.gentoo.org/viewcvs.py/portage?view=rev&rev=3457
[3] http://bugs.gentoo.org/show_bug.cgi?id=182028
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