We ended up not requiring this, as the SRU found another way to get
uploaded. :-)
However, I did look into how we might go about implementing this. In
case it might help someone else needing similar some day, here's what I
was thinking:
* In do-release-upgrade, add a new command line option such as '--allow-
proposed'. Like for options.allow_third_party, this option would set an
environment variable "RELEASE_UPGRADER_ALLOW_PROPOSED" to "True"
* In data/DistUpgrade.cfg, at the end of the [Sources] section add a
";AllowProposed=False".
* In DistUpgradeController::rewriteSourcesList(), after the code that
uses the config and env var settings to set mirror_check, add a similar
section for a new 'allow_proposed=False' variable.
* Also in DistUpgradeController::rewriteSourcesList(), update the clause
that does the actual proposed disablement should be modified to look
like this:
# Disable proposed on upgrade to a development release.
if (not entry.disabled
and not allow_proposed
and self.options and self.options.devel_release == True
and "%s-proposed" % self.fromDist in entry.dist):
logging.debug("upgrade to development release, disabling
proposed")
entry.dist = "%s-proposed" % self.toDist
entry.comment += _("Not for humans during development stage of
release %s") % self.toDist
entry.disabled = True
continue
I *think* that's the correct logic. This should skip the removal of
-proposed for any release, so if you enable proposed on your current
system, it should leave proposed enabled on the target distro. The
routine has a lot of branches so I may have missed some clause; I'd test
well.
This wouldn't permit upgrading to a proposed distro from a non-proposed
distro. If that functionality is wanted, then support would also need
added for that. Probably somewhere around the loop that adds -updates
and -security.
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https://bugs.launchpad.net/bugs/1880760
Title:
do-release-upgrade should provide a way to upgrade to $distro-proposed
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