X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/cce08fb5aca7dd01706cecea845b183dc62b1717..3b4d8136e78b9f2a70431ece4c850861d90e8bb1:/apt-pkg/algorithms.cc diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc index 3ac98216b..8beb2d51c 100644 --- a/apt-pkg/algorithms.cc +++ b/apt-pkg/algorithms.cc @@ -14,14 +14,26 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ +#include + #include #include #include +#include #include - -#include - +#include +#include +#include +#include +#include + +#include +#include +#include #include +#include + +#include /*}}}*/ using namespace std; @@ -33,7 +45,8 @@ pkgProblemResolver *pkgProblemResolver::This = 0; this is not necessary since the pkgCaches are fully shared now. */ pkgSimulate::pkgSimulate(pkgDepCache *Cache) : pkgPackageManager(Cache), iPolicy(Cache), - Sim(&Cache->GetCache(),&iPolicy) + Sim(&Cache->GetCache(),&iPolicy), + group(Sim) { Sim.Init(0); Flags = new unsigned char[Cache->Head().PackageCount]; @@ -53,7 +66,7 @@ void pkgSimulate::Describe(PkgIterator Pkg,ostream &out,bool Current,bool Candid { VerIterator Ver(Sim); - out << Pkg.Name(); + out << Pkg.FullName(true); if (Current == true) { @@ -78,15 +91,15 @@ void pkgSimulate::Describe(PkgIterator Pkg,ostream &out,bool Current,bool Candid bool pkgSimulate::Install(PkgIterator iPkg,string /*File*/) { // Adapt the iterator - PkgIterator Pkg = Sim.FindPkg(iPkg.Name()); + PkgIterator Pkg = Sim.FindPkg(iPkg.Name(), iPkg.Arch()); Flags[Pkg->ID] = 1; cout << "Inst "; Describe(Pkg,cout,true,true); Sim.MarkInstall(Pkg,false); - + // Look for broken conflicts+predepends. - for (PkgIterator I = Sim.PkgBegin(); I.end() == false; I++) + for (PkgIterator I = Sim.PkgBegin(); I.end() == false; ++I) { if (Sim[I].InstallVer == 0) continue; @@ -96,15 +109,14 @@ bool pkgSimulate::Install(PkgIterator iPkg,string /*File*/) DepIterator Start; DepIterator End; D.GlobOr(Start,End); - if (Start->Type == pkgCache::Dep::Conflicts || - Start->Type == pkgCache::Dep::Obsoletes || + if (Start.IsNegative() == true || End->Type == pkgCache::Dep::PreDepends) { if ((Sim[End] & pkgDepCache::DepGInstall) == 0) { - cout << " [" << I.Name() << " on " << Start.TargetPkg().Name() << ']'; + cout << " [" << I.FullName(false) << " on " << Start.TargetPkg().FullName(false) << ']'; if (Start->Type == pkgCache::Dep::Conflicts) - _error->Error("Fatal, conflicts violated %s",I.Name()); + _error->Error("Fatal, conflicts violated %s",I.FullName(false).c_str()); } } } @@ -125,33 +137,35 @@ bool pkgSimulate::Install(PkgIterator iPkg,string /*File*/) bool pkgSimulate::Configure(PkgIterator iPkg) { // Adapt the iterator - PkgIterator Pkg = Sim.FindPkg(iPkg.Name()); + PkgIterator Pkg = Sim.FindPkg(iPkg.Name(), iPkg.Arch()); Flags[Pkg->ID] = 2; -// Sim.MarkInstall(Pkg,false); + if (Sim[Pkg].InstBroken() == true) { - cout << "Conf " << Pkg.Name() << " broken" << endl; + cout << "Conf " << Pkg.FullName(false) << " broken" << endl; Sim.Update(); // Print out each package and the failed dependencies - for (pkgCache::DepIterator D = Sim[Pkg].InstVerIter(Sim).DependsList(); D.end() == false; D++) + for (pkgCache::DepIterator D = Sim[Pkg].InstVerIter(Sim).DependsList(); D.end() == false; ++D) { if (Sim.IsImportantDep(D) == false || (Sim[D] & pkgDepCache::DepInstall) != 0) continue; if (D->Type == pkgCache::Dep::Obsoletes) - cout << " Obsoletes:" << D.TargetPkg().Name(); + cout << " Obsoletes:" << D.TargetPkg().FullName(false); else if (D->Type == pkgCache::Dep::Conflicts) - cout << " Conflicts:" << D.TargetPkg().Name(); + cout << " Conflicts:" << D.TargetPkg().FullName(false); + else if (D->Type == pkgCache::Dep::DpkgBreaks) + cout << " Breaks:" << D.TargetPkg().FullName(false); else - cout << " Depends:" << D.TargetPkg().Name(); + cout << " Depends:" << D.TargetPkg().FullName(false); } cout << endl; - _error->Error("Conf Broken %s",Pkg.Name()); + _error->Error("Conf Broken %s",Pkg.FullName(false).c_str()); } else { @@ -173,10 +187,11 @@ bool pkgSimulate::Configure(PkgIterator iPkg) bool pkgSimulate::Remove(PkgIterator iPkg,bool Purge) { // Adapt the iterator - PkgIterator Pkg = Sim.FindPkg(iPkg.Name()); + PkgIterator Pkg = Sim.FindPkg(iPkg.Name(), iPkg.Arch()); Flags[Pkg->ID] = 3; Sim.MarkDelete(Pkg); + if (Purge == true) cout << "Purg "; else @@ -197,12 +212,12 @@ bool pkgSimulate::Remove(PkgIterator iPkg,bool Purge) void pkgSimulate::ShortBreaks() { cout << " ["; - for (PkgIterator I = Sim.PkgBegin(); I.end() == false; I++) + for (PkgIterator I = Sim.PkgBegin(); I.end() == false; ++I) { if (Sim[I].InstBroken() == true) { if (Flags[I->ID] == 0) - cout << I.Name() << ' '; + cout << I.FullName(false) << ' '; /* else cout << I.Name() << "! ";*/ } @@ -217,7 +232,9 @@ void pkgSimulate::ShortBreaks() the necessary calculations to deal with the problems. */ bool pkgApplyStatus(pkgDepCache &Cache) { - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + pkgDepCache::ActionGroup group(Cache); + + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (I->VersionList == 0) continue; @@ -227,16 +244,16 @@ bool pkgApplyStatus(pkgDepCache &Cache) I->InstState == pkgCache::State::HoldReInstReq) { if (I->CurrentVer != 0 && I.CurrentVer().Downloadable() == true) - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); else { // Is this right? Will dpkg choke on an upgrade? if (Cache[I].CandidateVer != 0 && Cache[I].CandidateVerIter(Cache).Downloadable() == true) - Cache.MarkInstall(I); + Cache.MarkInstall(I, false, 0, false); else return _error->Error(_("The package %s needs to be reinstalled, " - "but I can't find an archive for it."),I.Name()); + "but I can't find an archive for it."),I.FullName(true).c_str()); } continue; @@ -248,14 +265,16 @@ bool pkgApplyStatus(pkgDepCache &Cache) re-unpacked (probably) */ case pkgCache::State::UnPacked: case pkgCache::State::HalfConfigured: + case pkgCache::State::TriggersAwaited: + case pkgCache::State::TriggersPending: if ((I->CurrentVer != 0 && I.CurrentVer().Downloadable() == true) || I.State() != pkgCache::PkgIterator::NeedsUnpack) - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); else { if (Cache[I].CandidateVer != 0 && Cache[I].CandidateVerIter(Cache).Downloadable() == true) - Cache.MarkInstall(I); + Cache.MarkInstall(I, true, 0, false); else Cache.MarkDelete(I); } @@ -269,7 +288,7 @@ bool pkgApplyStatus(pkgDepCache &Cache) default: if (I->InstState != pkgCache::State::Ok) return _error->Error("The package %s is not ok and I " - "don't know how to fix it!",I.Name()); + "don't know how to fix it!",I.FullName(false).c_str()); } } return true; @@ -281,14 +300,16 @@ bool pkgApplyStatus(pkgDepCache &Cache) on the result. */ bool pkgFixBroken(pkgDepCache &Cache) { + pkgDepCache::ActionGroup group(Cache); + // Auto upgrade all broken packages - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) if (Cache[I].NowBroken() == true) - Cache.MarkInstall(I,true); + Cache.MarkInstall(I, true, 0, false); /* Fix packages that are in a NeedArchive state but don't have a downloadable install version */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (I.State() != pkgCache::PkgIterator::NeedsUnpack || Cache[I].Delete() == true) @@ -297,7 +318,7 @@ bool pkgFixBroken(pkgDepCache &Cache) if (Cache[I].InstVerIter(Cache).Downloadable() == false) continue; - Cache.MarkInstall(I,true); + Cache.MarkInstall(I, true, 0, false); } pkgProblemResolver Fix(&Cache); @@ -314,35 +335,50 @@ bool pkgFixBroken(pkgDepCache &Cache) */ 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++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) if (I->CurrentVer != 0) - Cache.MarkInstall(I,true); + Cache.MarkInstall(I, true, 0, false); /* Now, auto upgrade all essential packages - this ensures that the essential packages are present and working */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - Cache.MarkInstall(I,true); + 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++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) if (I->CurrentVer != 0) - Cache.MarkInstall(I,false); + 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++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (I->SelectedState == pkgCache::State::Hold) { Fix.Protect(I); - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); } } } @@ -357,13 +393,21 @@ bool pkgDistUpgrade(pkgDepCache &Cache) 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++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (Cache[I].Install() == true) Fix.Protect(I); @@ -373,7 +417,7 @@ bool pkgAllUpgrade(pkgDepCache &Cache) continue; if (I->CurrentVer != 0 && Cache[I].InstallVer != 0) - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); } return Fix.ResolveByKeep(); @@ -386,6 +430,8 @@ bool pkgAllUpgrade(pkgDepCache &Cache) the package is restored. */ bool pkgMinimizeUpgrade(pkgDepCache &Cache) { + pkgDepCache::ActionGroup group(Cache); + if (Cache.BrokenCount() != 0) return false; @@ -395,16 +441,16 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache) do { Change = false; - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + 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); + Cache.MarkKeep(I, false, false); if (Cache.BrokenCount() != 0) - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); else { // If keep didnt actually do anything then there was no change.. @@ -412,7 +458,7 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache) Change = true; } } - Count++; + ++Count; } while (Change == true && Count < 10); @@ -422,15 +468,14 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache) return true; } /*}}}*/ - // ProblemResolver::pkgProblemResolver - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgProblemResolver::pkgProblemResolver(pkgDepCache *pCache) : Cache(*pCache) +pkgProblemResolver::pkgProblemResolver(pkgDepCache *pCache) : d(NULL), Cache(*pCache) { // Allocate memory unsigned long Size = Cache.Head().PackageCount; - Scores = new signed short[Size]; + Scores = new int[Size]; Flags = new unsigned char[Size]; memset(Flags,0,sizeof(*Flags)*Size); @@ -469,63 +514,99 @@ void pkgProblemResolver::MakeScores() unsigned long Size = Cache.Head().PackageCount; memset(Scores,0,sizeof(*Scores)*Size); + // Important Required Standard Optional Extra + int PrioMap[] = { + 0, + _config->FindI("pkgProblemResolver::Scores::Important",3), + _config->FindI("pkgProblemResolver::Scores::Required",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 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 + << " Essentials => " << PrioEssentials << endl + << " InstalledAndNotObsolete => " << PrioInstalledAndNotObsolete << endl + << " Depends => " << PrioDepends << endl + << " Recommends => " << PrioRecommends << endl + << " AddProtected => " << AddProtected << endl + << " AddEssential => " << AddEssential << endl; + // Generate the base scores for a package based on its properties - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (Cache[I].InstallVer == 0) continue; - signed short &Score = Scores[I->ID]; + int &Score = Scores[I->ID]; - /* This is arbitary, it should be high enough to elevate an + /* 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) */ - if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - Score += 100; + if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential + || (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) + Score += PrioEssentials; // We transform the priority - // Important Required Standard Optional Extra - signed short PrioMap[] = {0,3,2,1,-1,-2}; if (Cache[I].InstVerIter(Cache)->Priority <= 5) Score += PrioMap[Cache[I].InstVerIter(Cache)->Priority]; /* This helps to fix oddball problems with conflicting packages - on the same level. We enhance the score of installed packages */ - if (I->CurrentVer != 0) - Score += 1; + 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++) + 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++) + for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false; ++D) { - if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) - Scores[D.TargetPkg()->ID]++; + 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; } } // Copy the scores to advoid additive looping - SPtrArray OldScores = new signed short[Size]; + SPtrArray OldScores = new int[Size]; memcpy(OldScores,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 fortifies high scoring packages */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (Cache[I].InstallVer == 0) continue; - for (pkgCache::DepIterator D = I.RevDependsList(); D.end() == false; D++) + for (pkgCache::DepIterator D = I.RevDependsList(); D.end() == false; ++D) { // Only do it for the install version if ((pkgCache::Version *)D.ParentVer() != Cache[D.ParentPkg()].InstallVer || - (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)) + (D->Type != pkgCache::Dep::Depends && + D->Type != pkgCache::Dep::PreDepends && + D->Type != pkgCache::Dep::Recommends)) continue; Scores[I->ID] += abs(OldScores[D.ParentPkg()->ID]); @@ -534,9 +615,9 @@ void pkgProblemResolver::MakeScores() /* Now we propogate along provides. This makes the packages that provide important packages extremely important */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { - for (pkgCache::PrvIterator P = I.ProvidesList(); P.end() == false; P++) + for (pkgCache::PrvIterator P = I.ProvidesList(); P.end() == false; ++P) { // Only do it once per package if ((pkgCache::Version *)P.OwnerVer() != Cache[P.OwnerPkg()].InstallVer) @@ -547,13 +628,14 @@ void pkgProblemResolver::MakeScores() /* Protected things are pushed really high up. This number should put them ahead of everything */ - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if ((Flags[I->ID] & Protected) != 0) - Scores[I->ID] += 10000; - if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) - Scores[I->ID] += 5000; - } + Scores[I->ID] += AddProtected; + if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential || + (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) + Scores[I->ID] += AddEssential; + } } /*}}}*/ // ProblemResolver::DoUpgrade - Attempt to upgrade this package /*{{{*/ @@ -562,6 +644,8 @@ void pkgProblemResolver::MakeScores() installable */ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) { + pkgDepCache::ActionGroup group(Cache); + if ((Flags[Pkg->ID] & Upgradable) == 0 || Cache[Pkg].Upgradable() == false) return false; if ((Flags[Pkg->ID] & Protected) == Protected) @@ -570,7 +654,7 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) Flags[Pkg->ID] &= ~Upgradable; bool WasKept = Cache[Pkg].Keep(); - Cache.MarkInstall(Pkg,false); + Cache.MarkInstall(Pkg, false, 0, false); // This must be a virtual package or something like that. if (Cache[Pkg].InstVerIter(Cache).end() == true) @@ -583,12 +667,10 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) // Compute a single dependency element (glob or) pkgCache::DepIterator Start = D; pkgCache::DepIterator End = D; - unsigned char State = 0; for (bool LastOR = true; D.end() == false && LastOR == true;) { - State |= Cache[D]; LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; - D++; + ++D; if (LastOR == true) End = D; } @@ -609,7 +691,7 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) if ((Flags[P->ID] & Protected) == Protected) { if (Debug == true) - clog << " Reinst Failed because of protected " << P.Name() << endl; + clog << " Reinst Failed because of protected " << P.FullName(false) << endl; Fail = true; } else @@ -620,7 +702,7 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) if (DoUpgrade(P) == false) { if (Debug == true) - clog << " Reinst Failed because of " << P.Name() << endl; + clog << " Reinst Failed because of " << P.FullName(false) << endl; Fail = true; } else @@ -633,19 +715,18 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) { /* We let the algorithm deal with conflicts on its next iteration, it is much smarter than us */ - if (Start->Type == pkgCache::Dep::Conflicts || - Start->Type == pkgCache::Dep::Obsoletes) + if (Start.IsNegative() == true) break; if (Debug == true) - clog << " Reinst Failed early because of " << Start.TargetPkg().Name() << endl; + clog << " Reinst Failed early because of " << Start.TargetPkg().FullName(false) << endl; Fail = true; } } if (Start == End) break; - Start++; + ++Start; } if (Fail == true) break; @@ -655,18 +736,31 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) if (Fail == true) { if (WasKept == true) - Cache.MarkKeep(Pkg); + Cache.MarkKeep(Pkg, false, false); else Cache.MarkDelete(Pkg); return false; } if (Debug == true) - clog << " Re-Instated " << Pkg.Name() << endl; + clog << " Re-Instated " << Pkg.FullName(false) << endl; return true; } /*}}}*/ -// ProblemResolver::Resolve - Run the resolution pass /*{{{*/ +// ProblemResolver::Resolve - calls a resolver to fix the situation /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool pkgProblemResolver::Resolve(bool BrokenFix) +{ + 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); + } + return ResolveInternal(BrokenFix); +} + /*}}}*/ +// ProblemResolver::ResolveInternal - Run the resolution pass /*{{{*/ // --------------------------------------------------------------------- /* This routines works by calculating a score for each package. The score is derived by considering the package's priority and all reverse @@ -680,16 +774,16 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) The BrokenFix flag enables a mode where the algorithm tries to upgrade packages to advoid problems. */ -bool pkgProblemResolver::Resolve(bool BrokenFix) +bool pkgProblemResolver::ResolveInternal(bool const BrokenFix) { - unsigned long Size = Cache.Head().PackageCount; + pkgDepCache::ActionGroup group(Cache); // Record which packages are marked for install bool Again = false; do { Again = false; - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if (Cache[I].Install() == true) Flags[I->ID] |= PreInstalled; @@ -697,7 +791,7 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) { if (Cache[I].InstBroken() == true && BrokenFix == true) { - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); if (Cache[I].Install() == true) Again = true; } @@ -713,35 +807,40 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) clog << "Starting" << endl; MakeScores(); - + + unsigned long const Size = Cache.Head().PackageCount; + /* 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. */ SPtrArray PList = new pkgCache::Package *[Size]; pkgCache::Package **PEnd = PList; - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) *PEnd++ = I; This = this; qsort(PList,PEnd - PList,sizeof(*PList),&ScoreSort); - -/* for (pkgCache::Package **K = PList; K != PEnd; K++) - if (Scores[(*K)->ID] != 0) - { - pkgCache::PkgIterator Pkg(Cache,*K); - clog << Scores[(*K)->ID] << ' ' << Pkg.Name() << - ' ' << (pkgCache::Version *)Pkg.CurrentVer() << ' ' << - Cache[Pkg].InstallVer << ' ' << Cache[Pkg].CandidateVer << endl; - } */ + + if (_config->FindB("Debug::pkgProblemResolver::ShowScores",false) == true) + { + clog << "Show Scores" << endl; + for (pkgCache::Package **K = PList; K != PEnd; K++) + if (Scores[(*K)->ID] != 0) + { + pkgCache::PkgIterator Pkg(Cache,*K); + clog << Scores[(*K)->ID] << ' ' << Pkg << std::endl; + } + } if (Debug == true) clog << "Starting 2" << 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 not be possible for a loop to form (that is a < b < c and fixing b by changing a breaks c) */ bool Change = true; + bool const TryFixByInstall = _config->FindB("pkgProblemResolver::FixByInstall", true); for (int Counter = 0; Counter != 10 && Change == true; Counter++) { Change = false; @@ -758,30 +857,30 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) (Flags[I->ID] & ReInstateTried) == 0) { if (Debug == true) - clog << " Try to Re-Instate " << I.Name() << endl; + clog << " Try to Re-Instate (" << Counter << ") " << I.FullName(false) << endl; unsigned long OldBreaks = Cache.BrokenCount(); pkgCache::Version *OldVer = Cache[I].InstallVer; Flags[I->ID] &= ReInstateTried; - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); if (Cache[I].InstBroken() == true || OldBreaks < Cache.BrokenCount()) { if (OldVer == 0) Cache.MarkDelete(I); else - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); } else if (Debug == true) - clog << "Re-Instated " << I.Name() << " (" << OldBreaks << " vs " << Cache.BrokenCount() << ')' << endl; + clog << "Re-Instated " << I.FullName(false) << " (" << OldBreaks << " vs " << Cache.BrokenCount() << ')' << endl; } if (Cache[I].InstallVer == 0 || Cache[I].InstBroken() == false) continue; if (Debug == true) - cout << "Investigating " << I.Name() << endl; + clog << "Investigating (" << Counter << ") " << I << endl; // Isolate the problem dependency PackageKill KillList[100]; @@ -799,23 +898,23 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) if (Start == End) { // Decide what to do - if (InOr == true) + if (InOr == true && OldEnd == LEnd) { - if (OldEnd == LEnd && OrOp == OrRemove) + if (OrOp == OrRemove) { if ((Flags[I->ID] & Protected) != Protected) { if (Debug == true) - clog << " Or group remove for " << I.Name() << endl; + clog << " Or group remove for " << I.FullName(false) << endl; Cache.MarkDelete(I); Change = true; - } - } - if (OldEnd == LEnd && OrOp == OrKeep) + } + } + else if (OrOp == OrKeep) { if (Debug == true) - clog << " Or group keep for " << I.Name() << endl; - Cache.MarkKeep(I); + clog << " Or group keep for " << I.FullName(false) << endl; + Cache.MarkKeep(I, false, false); Change = true; } } @@ -836,7 +935,12 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) OldEnd = LEnd; } else - Start++; + { + ++Start; + // We only worry about critical deps. + if (Start.IsCritical() != true) + continue; + } // Dep is ok if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall) @@ -846,15 +950,14 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) } if (Debug == true) - clog << "Package " << I.Name() << " has broken dep on " << Start.TargetPkg().Name() << endl; + clog << "Broken " << Start << endl; /* 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 && - Start->Type != pkgCache::Dep::Conflicts && - Start->Type != pkgCache::Dep::Obsoletes && + Start.IsNegative() == false && Cache[I].NowBroken() == false) { if (InOr == true) @@ -865,7 +968,7 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) } Change = true; - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); break; } @@ -875,16 +978,29 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) pkgCache::VerIterator Ver(Cache,*V); pkgCache::PkgIterator Pkg = Ver.ParentPkg(); + /* This is a conflicts, and the version we are looking + at is not the currently selected version of the + package, which means it is not necessary to + remove/keep */ + if (Cache[Pkg].InstallVer != Ver && Start.IsNegative() == true) + { + if (Debug) + clog << " Conflicts//Breaks against version " + << Ver.VerStr() << " for " << Pkg.Name() + << " but that is not InstVer, ignoring" + << endl; + continue; + } + if (Debug == true) - clog << " Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] << - " as a solution to " << I.Name() << ' ' << (int)Scores[I->ID] << endl; + clog << " Considering " << Pkg.FullName(false) << ' ' << (int)Scores[Pkg->ID] << + " as a solution to " << I.FullName(false) << ' ' << (int)Scores[I->ID] << endl; /* Try to fix the package under consideration rather than fiddle with the VList package */ if (Scores[I->ID] <= Scores[Pkg->ID] || ((Cache[Start] & pkgDepCache::DepNow) == 0 && - End->Type != pkgCache::Dep::Conflicts && - End->Type != pkgCache::Dep::Obsoletes)) + End.IsNegative() == false)) { // Try a little harder to fix protected packages.. if ((Flags[I->ID] & Protected) == Protected) @@ -902,7 +1018,7 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) /* See if a keep will do, unless the package is protected, then installing it will be necessary */ bool Installed = Cache[I].Install(); - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); if (Cache[I].InstBroken() == false) { // Unwind operation will be keep now @@ -911,27 +1027,43 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) // Restore if (InOr == true && Installed == true) - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); if (Debug == true) - clog << " Holding Back " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl; + clog << " Holding Back " << I.FullName(false) << " rather than change " << Start.TargetPkg().FullName(false) << endl; } else { if (BrokenFix == false || DoUpgrade(I) == false) { // Consider other options - if (InOr == false) + if (InOr == false || Cache[I].Garbage == true) { if (Debug == true) - clog << " Removing " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl; + clog << " Removing " << I.FullName(false) << " rather than change " << Start.TargetPkg().FullName(false) << endl; Cache.MarkDelete(I); - if (Counter > 1) - { - if (Scores[Pkg->ID] > Scores[I->ID]) - Scores[I->ID] = Scores[Pkg->ID]; - } - } + if (Counter > 1 && Scores[Pkg->ID] > Scores[I->ID]) + Scores[I->ID] = Scores[Pkg->ID]; + } + else if (TryFixByInstall == true && + Start.TargetPkg()->CurrentVer == 0 && + Cache[Start.TargetPkg()].Delete() == false && + (Flags[Start.TargetPkg()->ID] & ToRemove) != ToRemove && + Cache.GetCandidateVer(Start.TargetPkg()).end() == false) + { + /* Before removing or keeping the package with the broken dependency + try instead to install the first not previously installed package + solving this dependency. This helps every time a previous solver + is removed by the resolver because of a conflict or alike but it is + dangerous as it could trigger new breaks/conflicts… */ + if (Debug == true) + clog << " Try Installing " << Start.TargetPkg() << " before changing " << I.FullName(false) << std::endl; + unsigned long const OldBroken = Cache.BrokenCount(); + Cache.MarkInstall(Start.TargetPkg(), true, 1, false); + // FIXME: we should undo the complete MarkInstall process here + if (Cache[Start.TargetPkg()].InstBroken() == true || Cache.BrokenCount() > OldBroken) + Cache.MarkDelete(Start.TargetPkg(), false, 1, false); + } } } @@ -941,36 +1073,41 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) } else { - /* This is a conflicts, and the version we are looking - at is not the currently selected version of the - package, which means it is not necessary to - remove/keep */ - if (Cache[Pkg].InstallVer != Ver && - (Start->Type == pkgCache::Dep::Conflicts || - Start->Type == pkgCache::Dep::Obsoletes)) - continue; - + if (Start->Type == pkgCache::Dep::DpkgBreaks) + { + // first, try upgradring the package, if that + // does not help, the breaks goes onto the + // kill list + // + // FIXME: use DoUpgrade(Pkg) instead? + if (Cache[End] & pkgDepCache::DepGCVer) + { + if (Debug) + clog << " Upgrading " << Pkg.FullName(false) << " due to Breaks field in " << I.FullName(false) << endl; + Cache.MarkInstall(Pkg, false, 0, false); + continue; + } + } + // Skip adding to the kill list if it is protected if ((Flags[Pkg->ID] & Protected) != 0) continue; if (Debug == true) - clog << " Added " << Pkg.Name() << " to the remove list" << endl; + clog << " Added " << Pkg.FullName(false) << " to the remove list" << endl; LEnd->Pkg = Pkg; LEnd->Dep = End; LEnd++; - if (Start->Type != pkgCache::Dep::Conflicts && - Start->Type != pkgCache::Dep::Obsoletes) + if (Start.IsNegative() == false) break; } } // Hm, nothing can possibly satisify this dep. Nuke it. - if (VList[0] == 0 && - Start->Type != pkgCache::Dep::Conflicts && - Start->Type != pkgCache::Dep::Obsoletes && + if (VList[0] == 0 && + Start.IsNegative() == false && (Flags[I->ID] & Protected) != Protected) { bool Installed = Cache[I].Install(); @@ -983,15 +1120,15 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) // Restore if (InOr == true && Installed == true) - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); if (Debug == true) - clog << " Holding Back " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl; + clog << " Holding Back " << I.FullName(false) << " because I can't find " << Start.TargetPkg().FullName(false) << endl; } else { if (Debug == true) - clog << " Removing " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl; + clog << " Removing " << I.FullName(false) << " because I can't find " << Start.TargetPkg().FullName(false) << endl; if (InOr == false) Cache.MarkDelete(I); } @@ -1016,19 +1153,18 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) Change = true; if ((Cache[J->Dep] & pkgDepCache::DepGNow) == 0) { - if (J->Dep->Type == pkgCache::Dep::Conflicts || - J->Dep->Type == pkgCache::Dep::Obsoletes) + if (J->Dep.IsNegative() == true) { if (Debug == true) - clog << " Fixing " << I.Name() << " via remove of " << J->Pkg.Name() << endl; + clog << " Fixing " << I.FullName(false) << " via remove of " << J->Pkg.FullName(false) << endl; Cache.MarkDelete(J->Pkg); } } else { if (Debug == true) - clog << " Fixing " << I.Name() << " via keep of " << J->Pkg.Name() << endl; - Cache.MarkKeep(J->Pkg); + clog << " Fixing " << I.FullName(false) << " via keep of " << J->Pkg.FullName(false) << endl; + Cache.MarkKeep(J->Pkg, false, false); } if (Counter > 1) @@ -1048,7 +1184,7 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) { // See if this is the result of a hold pkgCache::PkgIterator I = Cache.PkgBegin(); - for (;I.end() != true; I++) + for (;I.end() != true; ++I) { if (Cache[I].InstBroken() == false) continue; @@ -1058,9 +1194,53 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) 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) + 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.FullName(false) + << " (now marking it as auto)" << std::endl; + } + Cache[I].Flags |= pkgCache::Flag::Auto; + } + } + + return true; } /*}}}*/ +// ProblemResolver::BreaksInstOrPolicy - Check if the given pkg is broken/*{{{*/ +// --------------------------------------------------------------------- +/* This checks if the given package is broken either by a hard dependency + (InstBroken()) or by introducing a new policy breakage e.g. new + unsatisfied recommends for a package that was in "policy-good" state + + Note that this is not perfect as it will ignore further breakage + for already broken policy (recommends) +*/ +bool pkgProblemResolver::InstOrNewPolicyBroken(pkgCache::PkgIterator I) +{ + // a broken install is always a problem + if (Cache[I].InstBroken() == true) + { + if (Debug == true) + std::clog << " Dependencies are not satisfied for " << I << std::endl; + return true; + } + + // a newly broken policy (recommends/suggests) is a problem + if (Cache[I].NowPolicyBroken() == false && + Cache[I].InstPolicyBroken() == true) + { + if (Debug == true) + std::clog << " Policy breaks with upgrade of " << I << std::endl; + return true; + } + + return false; +} + /*}}}*/ // ProblemResolver::ResolveByKeep - Resolve problems using keep /*{{{*/ // --------------------------------------------------------------------- /* This is the work horse of the soft upgrade routine. It is very gental @@ -1068,11 +1248,25 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) system was non-broken previously. */ bool pkgProblemResolver::ResolveByKeep() { + 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); + } + return ResolveByKeepInternal(); +} + /*}}}*/ +// ProblemResolver::ResolveByKeepInternal - 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::ResolveByKeepInternal() +{ + 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 @@ -1081,28 +1275,45 @@ bool pkgProblemResolver::ResolveByKeep() 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++) + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) *PEnd++ = I; This = this; qsort(PList,PEnd - PList,sizeof(*PList),&ScoreSort); - + + if (_config->FindB("Debug::pkgProblemResolver::ShowScores",false) == true) + { + clog << "Show Scores" << endl; + for (pkgCache::Package **K = PList; K != PEnd; K++) + if (Scores[(*K)->ID] != 0) + { + pkgCache::PkgIterator Pkg(Cache,*K); + clog << Scores[(*K)->ID] << ' ' << Pkg << std::endl; + } + } + + if (Debug == true) + clog << "Entering ResolveByKeep" << endl; + // 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) + if (Cache[I].InstallVer == 0) continue; + if (InstOrNewPolicyBroken(I) == 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); - if (Cache[I].InstBroken() == false) + clog << "Keeping package " << I.FullName(false) << endl; + Cache.MarkKeep(I, false, false); + if (InstOrNewPolicyBroken(I) == false) { K = PList - 1; continue; @@ -1131,8 +1342,8 @@ bool pkgProblemResolver::ResolveByKeep() while (true) { if (Debug == true) - clog << "Package " << I.Name() << " has broken dep on " << Start.TargetPkg().Name() << endl; - + 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++) @@ -1148,32 +1359,32 @@ bool pkgProblemResolver::ResolveByKeep() if ((Flags[I->ID] & Protected) == 0) { if (Debug == true) - clog << " Keeping Package " << Pkg.Name() << " due to dep" << endl; - Cache.MarkKeep(Pkg); + clog << " Keeping Package " << Pkg.FullName(false) << " due to " << Start.DepType() << endl; + Cache.MarkKeep(Pkg, false, false); } - if (Cache[I].InstBroken() == false) + if (InstOrNewPolicyBroken(I) == false) break; } - if (Cache[I].InstBroken() == false) + if (InstOrNewPolicyBroken(I) == false) break; if (Start == End) break; - Start++; + ++Start; } - if (Cache[I].InstBroken() == false) + if (InstOrNewPolicyBroken(I) == false) break; } - if (Cache[I].InstBroken() == true) + if (InstOrNewPolicyBroken(I) == true) continue; // Restart again. if (K == LastStop) - return _error->Error("Internal Error, pkgProblemResolver::ResolveByKeep is looping on package %s.",I.Name()); + return _error->Error("Internal Error, pkgProblemResolver::ResolveByKeep is looping on package %s.",I.FullName(false).c_str()); LastStop = K; K = PList - 1; } @@ -1186,19 +1397,25 @@ bool pkgProblemResolver::ResolveByKeep() /* This is used to make sure protected packages are installed */ void pkgProblemResolver::InstallProtect() { - for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + pkgDepCache::ActionGroup group(Cache); + + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { if ((Flags[I->ID] & Protected) == Protected) { if ((Flags[I->ID] & ToRemove) == ToRemove) Cache.MarkDelete(I); - else - Cache.MarkInstall(I,false); + else + { + // preserve the information whether the package was auto + // or manually installed + bool autoInst = (Cache[I].Flags & pkgCache::Flag::Auto); + Cache.MarkInstall(I, false, 0, !autoInst); + } } } } /*}}}*/ - // PrioSortList - Sort a list of versions by priority /*{{{*/ // --------------------------------------------------------------------- /* This is ment to be used in conjunction with AllTargets to get a list @@ -1215,6 +1432,13 @@ static int PrioComp(const void *A,const void *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::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; @@ -1229,3 +1453,87 @@ void pkgPrioSortList(pkgCache &Cache,pkgCache::Version **List) qsort(List,Count,sizeof(*List),PrioComp); } /*}}}*/ +// ListUpdate - 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::RunResult res; + 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; + + // Run scripts + RunScripts("APT::Update::Pre-Invoke"); + + // check arguments + 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; + + (*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; + } + + // 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 && + (_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.")); + + + // Run the success scripts if all was fine + if(!TransientNetworkFailure && !Failed) + RunScripts("APT::Update::Post-Invoke-Success"); + + // Run the other scripts + RunScripts("APT::Update::Post-Invoke"); + return true; +} + /*}}}*/