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authorDavid Kalnischkies <david@kalnischkies.de>2014-02-15 13:38:39 +0100
committerDavid Kalnischkies <david@kalnischkies.de>2014-03-13 13:57:34 +0100
commit8daf68e366fa9fa2794ae667f51562663856237c (patch)
tree3049c2e1cbcbea990c26530280696330e5866f6d /apt-private/private-upgrade.h
parent93bd01f7e0606b3f778401fb772fb3cb56cb3697 (diff)
propagate a negative score point along breaks/conflicts
versioned -dev packages like db and boost have the problem of no dependencies which would give them a competitive advantage against an older incarnation of the -dev package, so they tend to be kept back until the old version is removed from the archive, which, if the user has older releases in its sources can take a long time (or never happens). The newer version has a conflicts/breaks against the older one, but the older one hasn't against the newer, so by giving via the conflicts the older one a reduced score the newer one can win if there is no other reason to keep it. If both have a conflict against each other the scoring will cancel itself out, so no harm done. This gives "action" a slightly bigger edge in breaks/conflicts cases than before, but holding back isn't a really good solution anyway.
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