+
+ if (Counter > 1)
+ {
+ if (Scores[I->ID] > Scores[J->Pkg->ID])
+ Scores[J->Pkg->ID] = Scores[I->ID];
+ }
+ }
+ }
+ }
+ }
+
+ if (Debug == true)
+ clog << "Done" << endl;
+
+ if (Cache.BrokenCount() != 0)
+ {
+ // See if this is the result of a hold
+ pkgCache::PkgIterator I = Cache.PkgBegin();
+ for (;I.end() != true; I++)
+ {
+ if (Cache[I].InstBroken() == false)
+ continue;
+ if ((Flags[I->ID] & Protected) != Protected)
+ return _error->Error(_("Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages."));
+ }
+ return _error->Error(_("Unable to correct problems, you have held broken packages."));
+ }
+
+ // set the auto-flags (mvo: I'm not sure if we _really_ need this, but
+ // I didn't managed
+ pkgCache::PkgIterator I = Cache.PkgBegin();
+ for (;I.end() != true; I++) {
+ if (Cache[I].NewInstall() && !(Flags[I->ID] & PreInstalled)) {
+ if(_config->FindI("Debug::pkgAutoRemove",false)) {
+ std::clog << "Resolve installed new pkg: " << I.Name()
+ << " (now marking it as auto)" << std::endl;
+ }
+ Cache[I].Flags |= pkgCache::Flag::Auto;
+ }
+ }
+
+
+ return true;
+}
+ /*}}}*/
+// ProblemResolver::ResolveByKeep - Resolve problems using keep /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the work horse of the soft upgrade routine. It is very gental
+ in that it does not install or remove any packages. It is assumed that the
+ system was non-broken previously. */
+bool pkgProblemResolver::ResolveByKeep()
+{
+ pkgDepCache::ActionGroup group(Cache);
+
+ unsigned long Size = Cache.Head().PackageCount;
+
+ if (Debug == true)
+ clog << "Entering ResolveByKeep" << endl;
+
+ MakeScores();
+
+ /* We have to order the packages so that the broken fixing pass
+ operates from highest score to lowest. This prevents problems when
+ high score packages cause the removal of lower score packages that
+ would cause the removal of even lower score packages. */
+ pkgCache::Package **PList = new pkgCache::Package *[Size];
+ pkgCache::Package **PEnd = PList;
+ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
+ *PEnd++ = I;
+ This = this;
+ qsort(PList,PEnd - PList,sizeof(*PList),&ScoreSort);
+
+ // Consider each broken package
+ pkgCache::Package **LastStop = 0;
+ for (pkgCache::Package **K = PList; K != PEnd; K++)
+ {
+ pkgCache::PkgIterator I(Cache,*K);
+
+ if (Cache[I].InstallVer == 0 || Cache[I].InstBroken() == false)
+ continue;
+
+ /* Keep the package. If this works then great, otherwise we have
+ to be significantly more agressive and manipulate its dependencies */
+ if ((Flags[I->ID] & Protected) == 0)
+ {
+ if (Debug == true)
+ clog << "Keeping package " << I.Name() << endl;
+ Cache.MarkKeep(I, false, false);
+ if (Cache[I].InstBroken() == false)
+ {
+ K = PList - 1;
+ continue;
+ }
+ }
+
+ // Isolate the problem dependencies
+ for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false;)
+ {
+ DepIterator Start;
+ DepIterator End;
+ D.GlobOr(Start,End);
+
+ // We only worry about critical deps.
+ if (End.IsCritical() != true)
+ continue;
+
+ // Dep is ok
+ if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall)
+ continue;
+
+ /* Hm, the group is broken.. I suppose the best thing to do is to
+ is to try every combination of keep/not-keep for the set, but thats
+ slow, and this never happens, just be conservative and assume the
+ list of ors is in preference and keep till it starts to work. */
+ while (true)
+ {
+ if (Debug == true)
+ clog << "Package " << I.Name() << " has broken dep on " << Start.TargetPkg().Name() << endl;
+
+ // Look at all the possible provides on this package
+ SPtrArray<pkgCache::Version *> VList = Start.AllTargets();
+ for (pkgCache::Version **V = VList; *V != 0; V++)
projects / apt.git / blobdiff