X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0620365915671c718ae2cc181c161a254cbae67e..610e13842a3718128c03454c5dfcbde49d323281:/apt-pkg/algorithms.cc?ds=sidebyside diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc index 8cd9d4c6e..4b84b8324 100644 --- a/apt-pkg/algorithms.cc +++ b/apt-pkg/algorithms.cc @@ -19,32 +19,27 @@ #include #include #include -#include -#include -#include #include -#include -#include -#include +#include +#include +#include +#include -#include +#include +#include #include -#include #include -#include #include /*}}}*/ using namespace std; -pkgProblemResolver *pkgProblemResolver::This = 0; - // Simulate::Simulate - Constructor /*{{{*/ // --------------------------------------------------------------------- /* The legacy translations here of input Pkg iterators is obsolete, this is not necessary since the pkgCaches are fully shared now. */ pkgSimulate::pkgSimulate(pkgDepCache *Cache) : pkgPackageManager(Cache), - iPolicy(Cache), + d(NULL), iPolicy(Cache), Sim(&Cache->GetCache(),&iPolicy), group(Sim) { @@ -336,174 +331,6 @@ bool pkgFixBroken(pkgDepCache &Cache) return Fix.Resolve(true); } /*}}}*/ -// DistUpgrade - Distribution upgrade /*{{{*/ -// --------------------------------------------------------------------- -/* This autoinstalls every package and then force installs every - pre-existing package. This creates the initial set of conditions which - most likely contain problems because too many things were installed. - - The problem resolver is used to resolve the problems. - */ -bool pkgDistUpgrade(pkgDepCache &Cache) -{ - std::string const solver = _config->Find("APT::Solver", "internal"); - if (solver != "internal") { - OpTextProgress Prog(*_config); - return EDSP::ResolveExternal(solver.c_str(), Cache, false, true, false, &Prog); - } - - pkgDepCache::ActionGroup group(Cache); - - /* Upgrade all installed packages first without autoinst to help the resolver - in versioned or-groups to upgrade the old solver instead of installing - a new one (if the old solver is not the first one [anymore]) */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - if (I->CurrentVer != 0) - Cache.MarkInstall(I, false, 0, false); - - /* Auto upgrade all installed packages, this provides the basis - for the installation */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - if (I->CurrentVer != 0) - Cache.MarkInstall(I, true, 0, false); - - /* Now, install each essential package which is not installed - (and not provided by another package in the same name group) */ - std::string essential = _config->Find("pkgCacheGen::Essential", "all"); - if (essential == "all") - { - for (pkgCache::GrpIterator G = Cache.GrpBegin(); G.end() == false; ++G) - { - bool isEssential = false; - bool instEssential = false; - for (pkgCache::PkgIterator P = G.PackageList(); P.end() == false; P = G.NextPkg(P)) - { - if ((P->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential) - continue; - isEssential = true; - if (Cache[P].Install() == true) - { - instEssential = true; - break; - } - } - if (isEssential == false || instEssential == true) - continue; - pkgCache::PkgIterator P = G.FindPreferredPkg(); - Cache.MarkInstall(P, true, 0, false); - } - } - else if (essential != "none") - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - Cache.MarkInstall(I, true, 0, false); - - /* We do it again over all previously installed packages to force - conflict resolution on them all. */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - if (I->CurrentVer != 0) - Cache.MarkInstall(I, false, 0, false); - - pkgProblemResolver Fix(&Cache); - - // Hold back held packages. - if (_config->FindB("APT::Ignore-Hold",false) == false) - { - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - { - if (I->SelectedState == pkgCache::State::Hold) - { - Fix.Protect(I); - Cache.MarkKeep(I, false, false); - } - } - } - - return Fix.Resolve(); -} - /*}}}*/ -// AllUpgrade - Upgrade as many packages as possible /*{{{*/ -// --------------------------------------------------------------------- -/* Right now the system must be consistent before this can be called. - It also will not change packages marked for install, it only tries - to install packages not marked for install */ -bool pkgAllUpgrade(pkgDepCache &Cache) -{ - std::string const solver = _config->Find("APT::Solver", "internal"); - if (solver != "internal") { - OpTextProgress Prog(*_config); - return EDSP::ResolveExternal(solver.c_str(), Cache, true, false, false, &Prog); - } - - pkgDepCache::ActionGroup group(Cache); - - pkgProblemResolver Fix(&Cache); - - if (Cache.BrokenCount() != 0) - return false; - - // Upgrade all installed packages - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - { - if (Cache[I].Install() == true) - Fix.Protect(I); - - if (_config->FindB("APT::Ignore-Hold",false) == false) - if (I->SelectedState == pkgCache::State::Hold) - continue; - - if (I->CurrentVer != 0 && Cache[I].InstallVer != 0) - Cache.MarkInstall(I, false, 0, false); - } - - return Fix.ResolveByKeep(); -} - /*}}}*/ -// MinimizeUpgrade - Minimizes the set of packages to be upgraded /*{{{*/ -// --------------------------------------------------------------------- -/* This simply goes over the entire set of packages and tries to keep - each package marked for upgrade. If a conflict is generated then - the package is restored. */ -bool pkgMinimizeUpgrade(pkgDepCache &Cache) -{ - pkgDepCache::ActionGroup group(Cache); - - if (Cache.BrokenCount() != 0) - return false; - - // We loop for 10 tries to get the minimal set size. - bool Change = false; - unsigned int Count = 0; - do - { - Change = false; - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - { - // Not interesting - if (Cache[I].Upgrade() == false || Cache[I].NewInstall() == true) - continue; - - // Keep it and see if that is OK - Cache.MarkKeep(I, false, false); - if (Cache.BrokenCount() != 0) - Cache.MarkInstall(I, false, 0, false); - else - { - // If keep didnt actually do anything then there was no change.. - if (Cache[I].Upgrade() == false) - Change = true; - } - } - ++Count; - } - while (Change == true && Count < 10); - - if (Cache.BrokenCount() != 0) - return _error->Error("Internal Error in pkgMinimizeUpgrade"); - - return true; -} - /*}}}*/ // ProblemResolver::pkgProblemResolver - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -531,13 +358,11 @@ pkgProblemResolver::~pkgProblemResolver() // ProblemResolver::ScoreSort - Sort the list by score /*{{{*/ // --------------------------------------------------------------------- /* */ -int pkgProblemResolver::ScoreSort(const void *a,const void *b) +int pkgProblemResolver::ScoreSort(Package const *A,Package const *B) { - Package const **A = (Package const **)a; - Package const **B = (Package const **)b; - if (This->Scores[(*A)->ID] > This->Scores[(*B)->ID]) + if (Scores[A->ID] > Scores[B->ID]) return -1; - if (This->Scores[(*A)->ID] < This->Scores[(*B)->ID]) + if (Scores[A->ID] < Scores[B->ID]) return 1; return 0; } @@ -550,33 +375,51 @@ void pkgProblemResolver::MakeScores() unsigned long Size = Cache.Head().PackageCount; memset(Scores,0,sizeof(*Scores)*Size); - // Important Required Standard Optional Extra + // maps to pkgCache::State::VerPriority: + // Required Important Standard Optional Extra int PrioMap[] = { 0, - _config->FindI("pkgProblemResolver::Scores::Important",3), - _config->FindI("pkgProblemResolver::Scores::Required",2), + _config->FindI("pkgProblemResolver::Scores::Required",3), + _config->FindI("pkgProblemResolver::Scores::Important",2), _config->FindI("pkgProblemResolver::Scores::Standard",1), _config->FindI("pkgProblemResolver::Scores::Optional",-1), _config->FindI("pkgProblemResolver::Scores::Extra",-2) }; int PrioEssentials = _config->FindI("pkgProblemResolver::Scores::Essentials",100); int PrioInstalledAndNotObsolete = _config->FindI("pkgProblemResolver::Scores::NotObsolete",1); - int PrioDepends = _config->FindI("pkgProblemResolver::Scores::Depends",1); - int PrioRecommends = _config->FindI("pkgProblemResolver::Scores::Recommends",1); + int DepMap[] = { + 0, + _config->FindI("pkgProblemResolver::Scores::Depends",1), + _config->FindI("pkgProblemResolver::Scores::PreDepends",1), + _config->FindI("pkgProblemResolver::Scores::Suggests",0), + _config->FindI("pkgProblemResolver::Scores::Recommends",1), + _config->FindI("pkgProblemResolver::Scores::Conflicts",-1), + _config->FindI("pkgProblemResolver::Scores::Replaces",0), + _config->FindI("pkgProblemResolver::Scores::Obsoletes",0), + _config->FindI("pkgProblemResolver::Scores::Breaks",-1), + _config->FindI("pkgProblemResolver::Scores::Enhances",0) + }; int AddProtected = _config->FindI("pkgProblemResolver::Scores::AddProtected",10000); int AddEssential = _config->FindI("pkgProblemResolver::Scores::AddEssential",5000); if (_config->FindB("Debug::pkgProblemResolver::ShowScores",false) == true) clog << "Settings used to calculate pkgProblemResolver::Scores::" << endl - << " Important => " << PrioMap[1] << endl - << " Required => " << PrioMap[2] << endl - << " Standard => " << PrioMap[3] << endl - << " Optional => " << PrioMap[4] << endl - << " Extra => " << PrioMap[5] << endl + << " Required => " << PrioMap[pkgCache::State::Required] << endl + << " Important => " << PrioMap[pkgCache::State::Important] << endl + << " Standard => " << PrioMap[pkgCache::State::Standard] << endl + << " Optional => " << PrioMap[pkgCache::State::Optional] << endl + << " Extra => " << PrioMap[pkgCache::State::Extra] << endl << " Essentials => " << PrioEssentials << endl << " InstalledAndNotObsolete => " << PrioInstalledAndNotObsolete << endl - << " Depends => " << PrioDepends << endl - << " Recommends => " << PrioRecommends << endl + << " Pre-Depends => " << DepMap[pkgCache::Dep::PreDepends] << endl + << " Depends => " << DepMap[pkgCache::Dep::Depends] << endl + << " Recommends => " << DepMap[pkgCache::Dep::Recommends] << endl + << " Suggests => " << DepMap[pkgCache::Dep::Suggests] << endl + << " Conflicts => " << DepMap[pkgCache::Dep::Conflicts] << endl + << " Breaks => " << DepMap[pkgCache::Dep::DpkgBreaks] << endl + << " Replaces => " << DepMap[pkgCache::Dep::Replaces] << endl + << " Obsoletes => " << DepMap[pkgCache::Dep::Obsoletes] << endl + << " Enhances => " << DepMap[pkgCache::Dep::Enhances] << endl << " AddProtected => " << AddProtected << endl << " AddEssential => " << AddEssential << endl; @@ -591,42 +434,44 @@ void pkgProblemResolver::MakeScores() /* This is arbitrary, it should be high enough to elevate an essantial package above most other packages but low enough to allow an obsolete essential packages to be removed by - a conflicts on a powerfull normal package (ie libc6) */ + a conflicts on a powerful normal package (ie libc6) */ if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential || (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) Score += PrioEssentials; - // We transform the priority - if (Cache[I].InstVerIter(Cache)->Priority <= 5) - Score += PrioMap[Cache[I].InstVerIter(Cache)->Priority]; - + pkgCache::VerIterator const InstVer = Cache[I].InstVerIter(Cache); + // We apply priorities only to downloadable packages, all others are prio:extra + // as an obsolete prio:standard package can't be that standard anymore… + if (InstVer->Priority <= pkgCache::State::Extra && InstVer.Downloadable() == true) + Score += PrioMap[InstVer->Priority]; + else + Score += PrioMap[pkgCache::State::Extra]; + /* This helps to fix oddball problems with conflicting packages - on the same level. We enhance the score of installed packages - if those are not obsolete - */ + on the same level. We enhance the score of installed packages + if those are not obsolete */ if (I->CurrentVer != 0 && Cache[I].CandidateVer != 0 && Cache[I].CandidateVerIter(Cache).Downloadable()) Score += PrioInstalledAndNotObsolete; - } - // Now that we have the base scores we go and propogate dependencies - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) - { - if (Cache[I].InstallVer == 0) - continue; - - for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false; ++D) + // propagate score points along dependencies + for (pkgCache::DepIterator D = InstVer.DependsList(); D.end() == false; ++D) { - if (D->Type == pkgCache::Dep::Depends || - D->Type == pkgCache::Dep::PreDepends) - Scores[D.TargetPkg()->ID] += PrioDepends; - else if (D->Type == pkgCache::Dep::Recommends) - Scores[D.TargetPkg()->ID] += PrioRecommends; + if (DepMap[D->Type] == 0) + continue; + pkgCache::PkgIterator const T = D.TargetPkg(); + if (D->Version != 0) + { + pkgCache::VerIterator const IV = Cache[T].InstVerIter(Cache); + if (IV.end() == true || D.IsSatisfied(IV) == false) + continue; + } + Scores[T->ID] += DepMap[D->Type]; } - } - + } + // Copy the scores to advoid additive looping - SPtrArray OldScores = new int[Size]; - memcpy(OldScores,Scores,sizeof(*Scores)*Size); + std::unique_ptr OldScores(new int[Size]); + memcpy(OldScores.get(),Scores,sizeof(*Scores)*Size); /* Now we cause 1 level of dependency inheritance, that is we add the score of the packages that depend on the target Package. This @@ -645,11 +490,14 @@ void pkgProblemResolver::MakeScores() D->Type != pkgCache::Dep::Recommends)) continue; - Scores[I->ID] += abs(OldScores[D.ParentPkg()->ID]); + // Do not propagate negative scores otherwise + // an extra (-2) package might score better than an optional (-1) + if (OldScores[D.ParentPkg()->ID] > 0) + Scores[I->ID] += OldScores[D.ParentPkg()->ID]; } } - /* Now we propogate along provides. This makes the packages that + /* Now we propagate along provides. This makes the packages that provide important packages extremely important */ for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { @@ -784,15 +632,11 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) } /*}}}*/ // ProblemResolver::Resolve - calls a resolver to fix the situation /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool pkgProblemResolver::Resolve(bool BrokenFix) +bool pkgProblemResolver::Resolve(bool BrokenFix, OpProgress * const Progress) { std::string const solver = _config->Find("APT::Solver", "internal"); - if (solver != "internal") { - OpTextProgress Prog(*_config); - return EDSP::ResolveExternal(solver.c_str(), Cache, false, false, false, &Prog); - } + if (solver != "internal") + return EDSP::ResolveExternal(solver.c_str(), Cache, false, false, false, Progress); return ResolveInternal(BrokenFix); } /*}}}*/ @@ -804,7 +648,7 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) adjusting the package will inflict. It goes from highest score to lowest and corrects all of the breaks by - keeping or removing the dependant packages. If that fails then it removes + keeping or removing the dependent packages. If that fails then it removes the package itself and goes on. The routine should be able to intelligently go from any broken state to a fixed state. @@ -839,8 +683,10 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) } while (Again == true); - if (Debug == true) - clog << "Starting" << endl; + if (Debug == true) { + clog << "Starting pkgProblemResolver with broken count: " + << Cache.BrokenCount() << endl; + } MakeScores(); @@ -850,17 +696,17 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) 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. */ - SPtrArray PList = new pkgCache::Package *[Size]; - pkgCache::Package **PEnd = PList; + std::unique_ptr PList(new pkgCache::Package *[Size]); + pkgCache::Package **PEnd = PList.get(); for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) *PEnd++ = I; - This = this; - qsort(PList,PEnd - PList,sizeof(*PList),&ScoreSort); + + std::sort(PList.get(), PEnd, [this](Package *a, Package *b) { return ScoreSort(a, b) < 0; }); if (_config->FindB("Debug::pkgProblemResolver::ShowScores",false) == true) { clog << "Show Scores" << endl; - for (pkgCache::Package **K = PList; K != PEnd; K++) + for (pkgCache::Package **K = PList.get(); K != PEnd; K++) if (Scores[(*K)->ID] != 0) { pkgCache::PkgIterator Pkg(Cache,*K); @@ -868,8 +714,10 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) } } - if (Debug == true) - clog << "Starting 2" << endl; + if (Debug == true) { + clog << "Starting 2 pkgProblemResolver with broken count: " + << Cache.BrokenCount() << endl; + } /* Now consider all broken packages. For each broken package we either remove the package or fix it's problem. We do this once, it should @@ -880,7 +728,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) for (int Counter = 0; Counter != 10 && Change == true; Counter++) { Change = false; - for (pkgCache::Package **K = PList; K != PEnd; K++) + for (pkgCache::Package **K = PList.get(); K != PEnd; K++) { pkgCache::PkgIterator I(Cache,*K); @@ -990,9 +838,9 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) /* Look across the version list. If there are no possible targets then we keep the package and bail. This is necessary - if a package has a dep on another package that cant be found */ - SPtrArray VList = Start.AllTargets(); - if (*VList == 0 && (Flags[I->ID] & Protected) != Protected && + if a package has a dep on another package that can't be found */ + std::unique_ptr VList(Start.AllTargets()); + if (VList[0] == 0 && (Flags[I->ID] & Protected) != Protected && Start.IsNegative() == false && Cache[I].NowBroken() == false) { @@ -1009,7 +857,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) } bool Done = false; - for (pkgCache::Version **V = VList; *V != 0; V++) + for (pkgCache::Version **V = VList.get(); *V != 0; V++) { pkgCache::VerIterator Ver(Cache,*V); pkgCache::PkgIterator Pkg = Ver.ParentPkg(); @@ -1029,8 +877,8 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) } if (Debug == true) - clog << " Considering " << Pkg.FullName(false) << ' ' << (int)Scores[Pkg->ID] << - " as a solution to " << I.FullName(false) << ' ' << (int)Scores[I->ID] << endl; + clog << " Considering " << Pkg.FullName(false) << ' ' << Scores[Pkg->ID] << + " as a solution to " << I.FullName(false) << ' ' << Scores[I->ID] << endl; /* Try to fix the package under consideration rather than fiddle with the VList package */ @@ -1085,7 +933,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) Start.TargetPkg()->CurrentVer == 0 && Cache[Start.TargetPkg()].Delete() == false && (Flags[Start.TargetPkg()->ID] & ToRemove) != ToRemove && - Cache.GetCandidateVer(Start.TargetPkg()).end() == false) + Cache.GetCandidateVersion(Start.TargetPkg()).end() == false) { /* Before removing or keeping the package with the broken dependency try instead to install the first not previously installed package @@ -1282,13 +1130,11 @@ bool pkgProblemResolver::InstOrNewPolicyBroken(pkgCache::PkgIterator I) /* 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() +bool pkgProblemResolver::ResolveByKeep(OpProgress * const Progress) { std::string const solver = _config->Find("APT::Solver", "internal"); - if (solver != "internal") { - OpTextProgress Prog(*_config); - return EDSP::ResolveExternal(solver.c_str(), Cache, true, false, false, &Prog); - } + if (solver != "internal") + return EDSP::ResolveExternal(solver.c_str(), Cache, true, false, false, Progress); return ResolveByKeepInternal(); } /*}}}*/ @@ -1313,8 +1159,9 @@ bool pkgProblemResolver::ResolveByKeepInternal() 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); + + std::sort(PList,PEnd,[this](Package *a, Package *b) { return ScoreSort(a, b) < 0; }); + if (_config->FindB("Debug::pkgProblemResolver::ShowScores",false) == true) { @@ -1343,7 +1190,7 @@ bool pkgProblemResolver::ResolveByKeepInternal() continue; /* Keep the package. If this works then great, otherwise we have - to be significantly more agressive and manipulate its dependencies */ + to be significantly more aggressive and manipulate its dependencies */ if ((Flags[I->ID] & Protected) == 0) { if (Debug == true) @@ -1381,8 +1228,8 @@ bool pkgProblemResolver::ResolveByKeepInternal() clog << "Package " << I.FullName(false) << " " << Start << endl; // Look at all the possible provides on this package - SPtrArray VList = Start.AllTargets(); - for (pkgCache::Version **V = VList; *V != 0; V++) + std::unique_ptr VList(Start.AllTargets()); + for (pkgCache::Version **V = VList.get(); *V != 0; V++) { pkgCache::VerIterator Ver(Cache,*V); pkgCache::PkgIterator Pkg = Ver.ParentPkg(); @@ -1434,9 +1281,11 @@ bool pkgProblemResolver::ResolveByKeepInternal() return true; } /*}}}*/ -// ProblemResolver::InstallProtect - Install all protected packages /*{{{*/ +// ProblemResolver::InstallProtect - deprecated cpu-eating no-op /*{{{*/ // --------------------------------------------------------------------- -/* This is used to make sure protected packages are installed */ +/* Actions issued with FromUser bit set are protected from further + modification (expect by other calls with FromUser set) nowadays , so we + don't need to reissue actions here, they are already set in stone. */ void pkgProblemResolver::InstallProtect() { pkgDepCache::ActionGroup group(Cache); @@ -1462,135 +1311,46 @@ void pkgProblemResolver::InstallProtect() // --------------------------------------------------------------------- /* This is ment to be used in conjunction with AllTargets to get a list of versions ordered by preference. */ -static pkgCache *PrioCache; -static int PrioComp(const void *A,const void *B) -{ - pkgCache::VerIterator L(*PrioCache,*(pkgCache::Version **)A); - pkgCache::VerIterator R(*PrioCache,*(pkgCache::Version **)B); - - if ((L.ParentPkg()->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential && - (R.ParentPkg()->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential) - return 1; - if ((L.ParentPkg()->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential && - (R.ParentPkg()->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - return -1; - - if ((L.ParentPkg()->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important && - (R.ParentPkg()->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important) - return 1; - if ((L.ParentPkg()->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important && - (R.ParentPkg()->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) - return -1; - - if (L->Priority != R->Priority) - return R->Priority - L->Priority; - return strcmp(L.ParentPkg().Name(),R.ParentPkg().Name()); -} -void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List) -{ - unsigned long Count = 0; - PrioCache = &Cache; - for (pkgCache::Version **I = List; *I != 0; I++) - Count++; - qsort(List,Count,sizeof(*List),PrioComp); -} - /*}}}*/ -// ListUpdate - construct Fetcher and update the cache files /*{{{*/ -// --------------------------------------------------------------------- -/* This is a simple wrapper to update the cache. it will fetch stuff - * from the network (or any other sources defined in sources.list) - */ -bool ListUpdate(pkgAcquireStatus &Stat, - pkgSourceList &List, - int PulseInterval) -{ - pkgAcquire Fetcher; - if (Fetcher.Setup(&Stat, _config->FindDir("Dir::State::Lists")) == false) - return false; - // Populate it with the source selection - if (List.GetIndexes(&Fetcher) == false) - return false; - - return AcquireUpdate(Fetcher, PulseInterval, true); -} - /*}}}*/ -// AcquireUpdate - take Fetcher and update the cache files /*{{{*/ -// --------------------------------------------------------------------- -/* This is a simple wrapper to update the cache with a provided acquire - * If you only need control over Status and the used SourcesList use - * ListUpdate method instead. - */ -bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval, - bool const RunUpdateScripts, bool const ListCleanup) -{ - // Run scripts - if (RunUpdateScripts == true) - RunScripts("APT::Update::Pre-Invoke"); - - pkgAcquire::RunResult res; - if(PulseInterval > 0) - res = Fetcher.Run(PulseInterval); - else - res = Fetcher.Run(); - - if (res == pkgAcquire::Failed) - return false; - - bool Failed = false; - bool TransientNetworkFailure = false; - for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); - I != Fetcher.ItemsEnd(); ++I) - { - if ((*I)->Status == pkgAcquire::Item::StatDone) - continue; +struct PrioComp { + pkgCache &PrioCache; - (*I)->Finished(); - - ::URI uri((*I)->DescURI()); - uri.User.clear(); - uri.Password.clear(); - string descUri = string(uri); - _error->Warning(_("Failed to fetch %s %s\n"), descUri.c_str(), - (*I)->ErrorText.c_str()); - - if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError) - { - TransientNetworkFailure = true; - continue; - } - - Failed = true; + explicit PrioComp(pkgCache &PrioCache) : PrioCache(PrioCache) { } - - // Clean out any old list files - // Keep "APT::Get::List-Cleanup" name for compatibility, but - // this is really a global option for the APT library now - if (!TransientNetworkFailure && !Failed && ListCleanup == true && - (_config->FindB("APT::Get::List-Cleanup",true) == true && - _config->FindB("APT::List-Cleanup",true) == true)) - { - if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false || - Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false) - // something went wrong with the clean - return false; - } - - if (TransientNetworkFailure == true) - _error->Warning(_("Some index files failed to download. They have been ignored, or old ones used instead.")); - else if (Failed == true) - return _error->Error(_("Some index files failed to download. They have been ignored, or old ones used instead.")); + bool operator() (pkgCache::Version * const &A, pkgCache::Version * const &B) { + return compare(A, B) < 0; + } - // Run the success scripts if all was fine - if (RunUpdateScripts == true) - { - if(!TransientNetworkFailure && !Failed) - RunScripts("APT::Update::Post-Invoke-Success"); - - // Run the other scripts - RunScripts("APT::Update::Post-Invoke"); + int compare(pkgCache::Version * const &A, pkgCache::Version * const &B) { + pkgCache::VerIterator L(PrioCache,A); + pkgCache::VerIterator R(PrioCache,B); + + if ((L.ParentPkg()->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential && + (R.ParentPkg()->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential) + return 1; + if ((L.ParentPkg()->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential && + (R.ParentPkg()->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) + return -1; + + if ((L.ParentPkg()->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important && + (R.ParentPkg()->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important) + return 1; + if ((L.ParentPkg()->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important && + (R.ParentPkg()->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) + return -1; + + if (L->Priority != R->Priority) + return R->Priority - L->Priority; + return strcmp(L.ParentPkg().Name(),R.ParentPkg().Name()); } - return true; +}; + +void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List) +{ + unsigned long Count = 0; + for (pkgCache::Version **I = List; *I != 0; I++) + Count++; + std::sort(List,List+Count,PrioComp(Cache)); } /*}}}*/