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Prevents that "old" dependencies have an influence in the scoring.
With positive dependencies this is usually not a problem, but negative
dependencies can linger around for a long time.
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Git-Dch: Ignore
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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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This moves the ListUpdate/AquireUpdate out of the "catch-all"
algorithm.{cc,h} file into its own update.{cc,h}
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The upgrade releated code is moved into upgrade.{cc,h} and
all pkg*Upgrade* prototypes are included in algorihms.h to
avoid breaking API (unless build with APT_9_CLEANER_HEADERS).
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experimental
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Conflicts:
debian/changelog
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In the past packages were flagged "Protected" so that install/
remove markings where issued before the ProblemResolver.
Nowadays, the marking methods check if they are allowed to modify
the marking of a package instead, so that markings set by FromUser
calls are not overwritten anymore by automatic calls which elimates
the need for InstallProtect which just eats CPU now.
The method itself is left untouched for now in case frontend needs it
still for some wierd usecase, but they should be eliminated.
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- Do not propagate negative scores from rdepends. Propagating the absolute
value of a negative score may boost obsolete packages and keep them
installed instead of installing their successors. (Closes: #699759)
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Closes: #697577
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Closes: #697577
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- fix package-pointer array memory leak in ResolveByKeepInternal()
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- ensure pkgProblemResolver calls MarkDelete without FromUser set
so that it can't overrule holds and the protection flag
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by introducing a pseudo-architecture 'none' so that the small group of
users with these packages can get right of them without introducing too
much hassle for other users (Closes: #686346)
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- set pkgCacheGen::Essential to "all" again (Closes: #675449)
* apt-pkg/algorithms.cc:
- force install only for one essential package out of a group
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- fix memory leak of Flags in pkgSimulate by a proper destructor
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- factor out of ListUpdate a AcquireUpdate to be able to provide your
own pkgAcquire fetcher to the wrapper
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* apt-pkg/packagemanager.cc:
- fix bug in predepends handling - ensure that packages that needs
unpackaging are unpacked before they are configured (LP: #927993)
[ Julian Andres Klode ]
* apt-pkg/deb/deblistparser.cc:
- Set the Essential flag on APT instead of only Important
* apt-pkg/packagemanager.cc:
- Do not use immediate configuration for packages with the Important flag
* Treat the Important flag like the Essential flag with those differences:
- No Immediate configuration (see above)
- Not automatically installed during dist-upgrade
- No higher score for installation ordering
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- No Immediate configuration (see above)
- Not automatically installed during dist-upgrade
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initialized in the constructor." messages (no functional change)
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- use a signed int instead of short for score calculation as upgrades
become so big now that it can overflow (Closes: #657732, LP: #917173)
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- don't break out of the main-resolver loop for Breaks to deal with all
of them in a single iteration (Closes: #657695, LP: #922485)
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- show a debug why a package was kept by ResolveByKeep()
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- use std::vector instead of fixed size arrays to store args and
multiarch-packagename strings
- load the dpkg base arguments only one time and reuse them later
* cmdline/apt-get.cc:
- follow Provides in the evaluation of saving candidates, too, for
statisfying garbage package dependencies (Closes: #640590)
* apt-pkg/algorithms.cc:
- if a package is garbage, don't try to save it with FixByInstall
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- if a package is garbage, don't try to save it with FixByInstall
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done on the mirco-optimazation level, so lets fix them:
(performance) Possible inefficient checking for emptiness.
(performance) Prefer prefix ++/-- operators for non-primitive types.
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broken policy state by the upgrade
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use the internal resolver can now be used also with external
ones as the usage is hidden in between the old API
* provide two edsp solvers in apt-utils:
- 'dump' to quickly output a complete scenario and
- 'apt' to use the internal as an external resolver
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for the three different dependencies
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and instead rely on the Autoremove tagging to show us what could be done.
(apt-internal-solver doesn't support this currently as it doesn't load
the auto-information into the cache)
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solver in this list of directories
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