X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/a656821931a863ffcf46a719a57206eb0d2b11b3..115ba31b90e0d6643670d7d079f9f27b0e05f1c2:/apt-pkg/algorithms.cc diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc index a65062a9b..f17c76d6c 100644 --- a/apt-pkg/algorithms.cc +++ b/apt-pkg/algorithms.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: algorithms.cc,v 1.9 1998/11/13 07:08:57 jgg Exp $ +// $Id: algorithms.cc,v 1.44 2002/11/28 18:49:16 jgg Exp $ /* ###################################################################### Algorithms - A set of misc algorithms @@ -14,25 +14,67 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "apt-pkg/algorithms.h" -#endif #include #include #include -#include +#include +#include +#include + +#include +#include +#include +#include +#include /*}}}*/ +using namespace std; pkgProblemResolver *pkgProblemResolver::This = 0; // Simulate::Simulate - Constructor /*{{{*/ // --------------------------------------------------------------------- -/* */ -pkgSimulate::pkgSimulate(pkgDepCache &Cache) : pkgPackageManager(Cache), - Sim(Cache) +/* The legacy translations here of input Pkg iterators is obsolete, + this is not necessary since the pkgCaches are fully shared now.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), + Sim(&Cache->GetCache(),&iPolicy), + group(Sim) +{ + Sim.Init(0); + Flags = new unsigned char[Cache->Head().PackageCount]; + memset(Flags,0,sizeof(*Flags)*Cache->Head().PackageCount); + + // Fake a filename so as not to activate the media swapping + string Jnk = "SIMULATE"; + for (unsigned int I = 0; I != Cache->Head().PackageCount; I++) + FileNames[I] = Jnk; +} + /*}}}*/ +// Simulate::Describe - Describe a package /*{{{*/ +// --------------------------------------------------------------------- +/* Parameter Current == true displays the current package version, + Parameter Candidate == true displays the candidate package version */ +void pkgSimulate::Describe(PkgIterator Pkg,ostream &out,bool Current,bool Candidate) { - Flags = new unsigned char[Cache.HeaderP->PackageCount]; - memset(Flags,0,sizeof(*Flags)*Cache.HeaderP->PackageCount); + VerIterator Ver(Sim); + + out << Pkg.Name(); + + if (Current == true) + { + Ver = Pkg.CurrentVer(); + if (Ver.end() == false) + out << " [" << Ver.VerStr() << ']'; + } + + if (Candidate == true) + { + Ver = Sim[Pkg].CandidateVerIter(Sim); + if (Ver.end() == true) + return; + + out << " (" << Ver.VerStr() << ' ' << Ver.RelStr() << ')'; + } } /*}}}*/ // Simulate::Install - Simulate unpacking of a package /*{{{*/ @@ -41,34 +83,58 @@ pkgSimulate::pkgSimulate(pkgDepCache &Cache) : pkgPackageManager(Cache), 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; - clog << "Inst " << Pkg.Name(); + cout << "Inst "; + Describe(Pkg,cout,true,true); Sim.MarkInstall(Pkg,false); - + + if (strcmp(Pkg.Arch(),"all") == 0) + { + pkgCache::GrpIterator G = Pkg.Group(); + pkgCache::GrpIterator iG = iPkg.Group(); + for (pkgCache::PkgIterator P = G.FindPkg("any"); P.end() != true; P = G.NextPkg(P)) + { + if (strcmp(P.Arch(), "all") == 0) + continue; + if (iG.FindPkg(P.Arch())->CurrentVer == 0) + continue; + Flags[P->ID] = 1; + Sim.MarkInstall(P, false); + } + } + // Look for broken conflicts+predepends. for (PkgIterator I = Sim.PkgBegin(); I.end() == false; I++) { if (Sim[I].InstallVer == 0) continue; - for (DepIterator D = Sim[I].InstVerIter(Sim).DependsList(); D.end() == false; D++) - if (D->Type == pkgCache::Dep::Conflicts || D->Type == pkgCache::Dep::PreDepends) + for (DepIterator D = Sim[I].InstVerIter(Sim).DependsList(); D.end() == false;) + { + DepIterator Start; + DepIterator End; + D.GlobOr(Start,End); + if (Start->Type == pkgCache::Dep::Conflicts || + Start->Type == pkgCache::Dep::DpkgBreaks || + Start->Type == pkgCache::Dep::Obsoletes || + End->Type == pkgCache::Dep::PreDepends) { - if ((Sim[D] & pkgDepCache::DepInstall) == 0) + if ((Sim[End] & pkgDepCache::DepGInstall) == 0) { - clog << " [" << I.Name() << " on " << D.TargetPkg().Name() << ']'; - if (D->Type == pkgCache::Dep::Conflicts) + cout << " [" << I.Name() << " on " << Start.TargetPkg().Name() << ']'; + if (Start->Type == pkgCache::Dep::Conflicts) _error->Error("Fatal, conflicts violated %s",I.Name()); } - } + } + } } if (Sim.BrokenCount() != 0) ShortBreaks(); else - clog << endl; + cout << endl; return true; } /*}}}*/ @@ -80,13 +146,26 @@ 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; + + if (strcmp(Pkg.Arch(),"all") == 0) + { + pkgCache::GrpIterator G = Pkg.Group(); + for (pkgCache::PkgIterator P = G.FindPkg("any"); P.end() != true; P = G.NextPkg(P)) + { + if (strcmp(P.Arch(), "all") == 0) + continue; + if (Flags[P->ID] == 1) + Flags[P->ID] = 2; + } + } + // Sim.MarkInstall(Pkg,false); if (Sim[Pkg].InstBroken() == true) { - clog << "Conf " << Pkg.Name() << " broken" << endl; + cout << "Conf " << Pkg.Name() << " broken" << endl; Sim.Update(); @@ -97,22 +176,29 @@ bool pkgSimulate::Configure(PkgIterator iPkg) (Sim[D] & pkgDepCache::DepInstall) != 0) continue; - if (D->Type == pkgCache::Dep::Conflicts) - clog << " Conflicts:" << D.TargetPkg().Name(); + if (D->Type == pkgCache::Dep::Obsoletes) + cout << " Obsoletes:" << D.TargetPkg().Name(); + else if (D->Type == pkgCache::Dep::Conflicts) + cout << " Conflicts:" << D.TargetPkg().Name(); + else if (D->Type == pkgCache::Dep::DpkgBreaks) + cout << " Breaks:" << D.TargetPkg().Name(); else - clog << " Depends:" << D.TargetPkg().Name(); + cout << " Depends:" << D.TargetPkg().Name(); } - clog << endl; + cout << endl; _error->Error("Conf Broken %s",Pkg.Name()); } else - clog << "Conf " << Pkg.Name(); + { + cout << "Conf "; + Describe(Pkg,cout,false,true); + } if (Sim.BrokenCount() != 0) ShortBreaks(); else - clog << endl; + cout << endl; return true; } @@ -120,19 +206,39 @@ bool pkgSimulate::Configure(PkgIterator iPkg) // Simulate::Remove - Simulate the removal of a package /*{{{*/ // --------------------------------------------------------------------- /* */ -bool pkgSimulate::Remove(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); - clog << "Remv " << Pkg.Name(); + + if (strcmp(Pkg.Arch(),"all") == 0) + { + pkgCache::GrpIterator G = Pkg.Group(); + pkgCache::GrpIterator iG = iPkg.Group(); + for (pkgCache::PkgIterator P = G.FindPkg("any"); P.end() != true; P = G.NextPkg(P)) + { + if (strcmp(P.Arch(), "all") == 0) + continue; + if (iG.FindPkg(P.Arch())->CurrentVer == 0) + continue; + Flags[P->ID] = 3; + Sim.MarkDelete(P); + } + } + + if (Purge == true) + cout << "Purg "; + else + cout << "Remv "; + Describe(Pkg,cout,true,false); if (Sim.BrokenCount() != 0) ShortBreaks(); else - clog << endl; + cout << endl; return true; } @@ -142,18 +248,18 @@ bool pkgSimulate::Remove(PkgIterator iPkg) /* */ void pkgSimulate::ShortBreaks() { - clog << " ["; + cout << " ["; for (PkgIterator I = Sim.PkgBegin(); I.end() == false; I++) { if (Sim[I].InstBroken() == true) { if (Flags[I->ID] == 0) - clog << I.Name() << ' '; + cout << I.Name() << ' '; /* else - clog << I.Name() << "! ";*/ + cout << I.Name() << "! ";*/ } } - clog << ']' << endl; + cout << ']' << endl; } /*}}}*/ // ApplyStatus - Adjust for non-ok packages /*{{{*/ @@ -163,14 +269,52 @@ void pkgSimulate::ShortBreaks() the necessary calculations to deal with the problems. */ bool pkgApplyStatus(pkgDepCache &Cache) { + pkgDepCache::ActionGroup group(Cache); + for (pkgCache::PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) { + if (I->VersionList == 0) + continue; + + // Only choice for a ReInstReq package is to reinstall + if (I->InstState == pkgCache::State::ReInstReq || + I->InstState == pkgCache::State::HoldReInstReq) + { + if (I->CurrentVer != 0 && I.CurrentVer().Downloadable() == true) + 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, 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()); + } + + continue; + } + switch (I->CurrentState) { - // This means installation failed somehow + /* This means installation failed somehow - it does not need to be + re-unpacked (probably) */ case pkgCache::State::UnPacked: case pkgCache::State::HalfConfigured: - Cache.MarkKeep(I); + case pkgCache::State::TriggersAwaited: + case pkgCache::State::TriggersPending: + if ((I->CurrentVer != 0 && I.CurrentVer().Downloadable() == true) || + I.State() != pkgCache::PkgIterator::NeedsUnpack) + Cache.MarkKeep(I, false, false); + else + { + if (Cache[I].CandidateVer != 0 && + Cache[I].CandidateVerIter(Cache).Downloadable() == true) + Cache.MarkInstall(I, true, 0, false); + else + Cache.MarkDelete(I); + } break; // This means removal failed @@ -193,10 +337,12 @@ 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++) 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 */ @@ -209,10 +355,10 @@ 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); + pkgProblemResolver Fix(&Cache); return Fix.Resolve(true); } /*}}}*/ @@ -226,35 +372,37 @@ bool pkgFixBroken(pkgDepCache &Cache) */ bool pkgDistUpgrade(pkgDepCache &Cache) { + pkgDepCache::ActionGroup group(Cache); + /* 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); + 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++) 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++) if (I->CurrentVer != 0) - Cache.MarkInstall(I,false); + Cache.MarkInstall(I, false, 0, false); - pkgProblemResolver Fix(Cache); + pkgProblemResolver Fix(&Cache); // Hold back held packages. - if (_config->FindB("APT::Ingore-Hold",false) == false) + 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); + Cache.MarkKeep(I, false, false); } } } @@ -269,7 +417,9 @@ bool pkgDistUpgrade(pkgDepCache &Cache) to install packages not marked for install */ bool pkgAllUpgrade(pkgDepCache &Cache) { - pkgProblemResolver Fix(Cache); + pkgDepCache::ActionGroup group(Cache); + + pkgProblemResolver Fix(&Cache); if (Cache.BrokenCount() != 0) return false; @@ -280,12 +430,12 @@ bool pkgAllUpgrade(pkgDepCache &Cache) if (Cache[I].Install() == true) Fix.Protect(I); - if (_config->FindB("APT::Ingore-Hold",false) == false) + 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); + Cache.MarkInstall(I, false, 0, false); } return Fix.ResolveByKeep(); @@ -298,11 +448,14 @@ bool pkgAllUpgrade(pkgDepCache &Cache) the package is restored. */ bool pkgMinimizeUpgrade(pkgDepCache &Cache) { + pkgDepCache::ActionGroup group(Cache); + if (Cache.BrokenCount() != 0) return false; - // We loop indefinately to get the minimal set size. + // We loop for 10 tries to get the minimal set size. bool Change = false; + unsigned int Count = 0; do { Change = false; @@ -311,16 +464,21 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache) // 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 - Change = true; + { + // If keep didnt actually do anything then there was no change.. + if (Cache[I].Upgrade() == false) + Change = true; + } } + Count++; } - while (Change == true); + while (Change == true && Count < 10); if (Cache.BrokenCount() != 0) return _error->Error("Internal Error in pkgMinimizeUpgrade"); @@ -328,14 +486,13 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache) return true; } /*}}}*/ - // ProblemResolver::pkgProblemResolver - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgProblemResolver::pkgProblemResolver(pkgDepCache &Cache) : Cache(Cache) +pkgProblemResolver::pkgProblemResolver(pkgDepCache *pCache) : Cache(*pCache) { // Allocate memory - unsigned long Size = Cache.HeaderP->PackageCount; + unsigned long Size = Cache.Head().PackageCount; Scores = new signed short[Size]; Flags = new unsigned char[Size]; memset(Flags,0,sizeof(*Flags)*Size); @@ -344,6 +501,15 @@ pkgProblemResolver::pkgProblemResolver(pkgDepCache &Cache) : Cache(Cache) Debug = _config->FindB("Debug::pkgProblemResolver",false); } /*}}}*/ +// ProblemResolver::~pkgProblemResolver - Destructor /*{{{*/ +// --------------------------------------------------------------------- +/* */ +pkgProblemResolver::~pkgProblemResolver() +{ + delete [] Scores; + delete [] Flags; +} + /*}}}*/ // ProblemResolver::ScoreSort - Sort the list by score /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -363,9 +529,39 @@ int pkgProblemResolver::ScoreSort(const void *a,const void *b) /* */ void pkgProblemResolver::MakeScores() { - unsigned long Size = Cache.HeaderP->PackageCount; + unsigned long Size = Cache.Head().PackageCount; memset(Scores,0,sizeof(*Scores)*Size); + // Important Required Standard Optional Extra + signed short PrioMap[] = { + 0, + (signed short) _config->FindI("pkgProblemResolver::Scores::Important",3), + (signed short) _config->FindI("pkgProblemResolver::Scores::Required",2), + (signed short) _config->FindI("pkgProblemResolver::Scores::Standard",1), + (signed short) _config->FindI("pkgProblemResolver::Scores::Optional",-1), + (signed short) _config->FindI("pkgProblemResolver::Scores::Extra",-2) + }; + signed short PrioEssentials = _config->FindI("pkgProblemResolver::Scores::Essentials",100); + signed short PrioInstalledAndNotObsolete = _config->FindI("pkgProblemResolver::Scores::NotObsolete",1); + signed short PrioDepends = _config->FindI("pkgProblemResolver::Scores::Depends",1); + signed short PrioRecommends = _config->FindI("pkgProblemResolver::Scores::Recommends",1); + signed short AddProtected = _config->FindI("pkgProblemResolver::Scores::AddProtected",10000); + signed short 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++) { @@ -374,23 +570,23 @@ void pkgProblemResolver::MakeScores() signed short &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; + 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 @@ -401,13 +597,16 @@ void pkgProblemResolver::MakeScores() 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 - signed short *OldScores = new signed short[Size]; + SPtrArray OldScores = new signed short[Size]; memcpy(OldScores,Scores,sizeof(*Scores)*Size); /* Now we cause 1 level of dependency inheritance, that is we add the @@ -422,7 +621,9 @@ void pkgProblemResolver::MakeScores() { // 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]); @@ -445,10 +646,12 @@ 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++) + { if ((Flags[I->ID] & Protected) != 0) - Scores[I->ID] += 10000; - - delete [] OldScores; + Scores[I->ID] += AddProtected; + if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) + Scores[I->ID] += AddEssential; + } } /*}}}*/ // ProblemResolver::DoUpgrade - Attempt to upgrade this package /*{{{*/ @@ -457,13 +660,17 @@ 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) + return false; 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) @@ -477,10 +684,11 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) pkgCache::DepIterator Start = D; pkgCache::DepIterator End = D; unsigned char State = 0; - for (bool LastOR = true; D.end() == false && LastOR == true; D++) + for (bool LastOR = true; D.end() == false && LastOR == true;) { State |= Cache[D]; LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; + D++; if (LastOR == true) End = D; } @@ -488,59 +696,67 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) // 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 have no idea how to handle this - if (Start != End) - { - clog << "Note, a broken or group was found in " << Pkg.Name() << "." << endl; - Fail = true; - break; - } - - // Do not change protected packages - PkgIterator P = Start.SmartTargetPkg(); - if ((Flags[P->ID] & Protected) == Protected) - { - if (Debug == true) - clog << " Reinet Failed because of protected " << P.Name() << endl; - Fail = true; - break; - } - - // Upgrade the package if the candidate version will fix the problem. - if ((Cache[Start] & pkgDepCache::DepCVer) == pkgDepCache::DepCVer) + + // Iterate over all the members in the or group + while (1) { - if (DoUpgrade(P) == false) + // Dep is ok now + if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall) + break; + + // Do not change protected packages + PkgIterator P = Start.SmartTargetPkg(); + if ((Flags[P->ID] & Protected) == Protected) { if (Debug == true) - clog << " Reinst Failed because of " << P.Name() << endl; + clog << " Reinst Failed because of protected " << P.Name() << endl; Fail = true; + } + else + { + // Upgrade the package if the candidate version will fix the problem. + if ((Cache[Start] & pkgDepCache::DepCVer) == pkgDepCache::DepCVer) + { + if (DoUpgrade(P) == false) + { + if (Debug == true) + clog << " Reinst Failed because of " << P.Name() << endl; + Fail = true; + } + else + { + Fail = false; + break; + } + } + else + { + /* 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::DpkgBreaks || + Start->Type == pkgCache::Dep::Obsoletes) + break; + + if (Debug == true) + clog << " Reinst Failed early because of " << Start.TargetPkg().Name() << endl; + Fail = true; + } + } + + if (Start == End) break; - } + Start++; } - else - { - /* We let the algorithm deal with conflicts on its next iteration, - it is much smarter than us */ - if (End->Type == pkgCache::Dep::Conflicts) - continue; - - if (Debug == true) - clog << " Reinst Failed early because of " << Start.TargetPkg().Name() << endl; - Fail = true; + if (Fail == true) break; - } } // Undo our operations - it might be smart to undo everything this did.. if (Fail == true) { if (WasKept == true) - Cache.MarkKeep(Pkg); + Cache.MarkKeep(Pkg, false, false); else Cache.MarkDelete(Pkg); return false; @@ -567,7 +783,9 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg) upgrade packages to advoid problems. */ bool pkgProblemResolver::Resolve(bool BrokenFix) { - unsigned long Size = Cache.HeaderP->PackageCount; + pkgDepCache::ActionGroup group(Cache); + + unsigned long Size = Cache.Head().PackageCount; // Record which packages are marked for install bool Again = false; @@ -582,7 +800,7 @@ 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; } @@ -603,25 +821,27 @@ bool pkgProblemResolver::Resolve(bool 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. */ - pkgCache::Package **PList = new pkgCache::Package *[Size]; + SPtrArray 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); - -/* 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 @@ -648,14 +868,14 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) 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) @@ -665,160 +885,317 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) if (Cache[I].InstallVer == 0 || Cache[I].InstBroken() == false) continue; + if (Debug == true) + clog << "Investigating " << I.Name() << endl; + // Isolate the problem dependency PackageKill KillList[100]; PackageKill *LEnd = KillList; - for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false;) + bool InOr = false; + pkgCache::DepIterator Start; + pkgCache::DepIterator End; + PackageKill *OldEnd = LEnd; + + enum {OrRemove,OrKeep} OrOp = OrRemove; + for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); + D.end() == false || InOr == true;) { // 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; D++) + if (Start == End) { - State |= Cache[D]; - LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; - if (LastOR == true) - End = D; + // Decide what to do + if (InOr == true) + { + if (OldEnd == LEnd && OrOp == OrRemove) + { + if ((Flags[I->ID] & Protected) != Protected) + { + if (Debug == true) + clog << " Or group remove for " << I.Name() << endl; + Cache.MarkDelete(I); + Change = true; + } + } + if (OldEnd == LEnd && OrOp == OrKeep) + { + if (Debug == true) + clog << " Or group keep for " << I.Name() << endl; + Cache.MarkKeep(I, false, false); + Change = true; + } + } + + /* We do an extra loop (as above) to finalize the or group + processing */ + InOr = false; + OrOp = OrRemove; + D.GlobOr(Start,End); + if (Start.end() == true) + break; + + // We only worry about critical deps. + if (End.IsCritical() != true) + continue; + + InOr = Start != End; + OldEnd = LEnd; } - - // We only worry about critical deps. - if (End.IsCritical() != true) - continue; - + else + { + Start++; + // We only worry about critical deps. + if (Start.IsCritical() != true) + continue; + } + // Dep is ok if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall) + { + InOr = false; continue; + } - // Hm, the group is broken.. I have no idea how to handle this - if (Start != End) - { - clog << "Note, a broken or group was found in " << I.Name() << "." << endl; - Cache.MarkDelete(I); + if (Debug == true) + clog << "Package " << I.Name() << " has broken " << Start.DepType() << " on " << Start.TargetPkg().Name() << 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::DpkgBreaks && + Start->Type != pkgCache::Dep::Obsoletes && + Cache[I].NowBroken() == false) + { + if (InOr == true) + { + /* No keep choice because the keep being OK could be the + result of another element in the OR group! */ + continue; + } + + Change = true; + Cache.MarkKeep(I, false, false); break; } - - if (Debug == true) - clog << "Package " << I.Name() << " has broken dep on " << End.TargetPkg().Name() << endl; - /* Conflicts is simple, decide if we should remove this package - or the conflicted one */ - pkgCache::Version **VList = End.AllTargets(); bool Done = false; for (pkgCache::Version **V = VList; *V != 0; V++) { pkgCache::VerIterator Ver(Cache,*V); pkgCache::PkgIterator Pkg = Ver.ParentPkg(); - + if (Debug == true) - clog << " Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] << + clog << " Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] << " as a solution to " << I.Name() << ' ' << (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[End] & pkgDepCache::DepGNow) == 0 && - End->Type != pkgCache::Dep::Conflicts)) + ((Cache[Start] & pkgDepCache::DepNow) == 0 && + End->Type != pkgCache::Dep::Conflicts && + End->Type != pkgCache::Dep::DpkgBreaks && + End->Type != pkgCache::Dep::Obsoletes)) { + // Try a little harder to fix protected packages.. if ((Flags[I->ID] & Protected) == Protected) + { + if (DoUpgrade(Pkg) == true) + { + if (Scores[Pkg->ID] > Scores[I->ID]) + Scores[Pkg->ID] = Scores[I->ID]; + break; + } + continue; - - // See if a keep will do - Cache.MarkKeep(I); + } + + /* 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, false, false); if (Cache[I].InstBroken() == false) { + // Unwind operation will be keep now + if (OrOp == OrRemove) + OrOp = OrKeep; + + // Restore + if (InOr == true && Installed == true) + Cache.MarkInstall(I, false, 0, false); + if (Debug == true) - clog << " Holding Back " << I.Name() << " rather than change " << End.TargetPkg().Name() << endl; + clog << " Holding Back " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl; } else - { + { if (BrokenFix == false || DoUpgrade(I) == false) { - if (Debug == true) - clog << " Removing " << I.Name() << " rather than change " << End.TargetPkg().Name() << endl; - Cache.MarkDelete(I); - if (Counter > 1) - Scores[I->ID] = Scores[Pkg->ID]; + // Consider other options + if (InOr == false) + { + if (Debug == true) + clog << " Removing " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl; + Cache.MarkDelete(I); + if (Counter > 1 && Scores[Pkg->ID] > Scores[I->ID]) + Scores[I->ID] = Scores[Pkg->ID]; + } } } - + Change = true; Done = true; break; } else { - // Skip this if it is protected + /* 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.Name() << " due to Breaks field in " << I.Name() << 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; LEnd->Pkg = Pkg; LEnd->Dep = End; LEnd++; - if (End->Type != pkgCache::Dep::Conflicts) + if (Start->Type != pkgCache::Dep::Conflicts && + Start->Type != pkgCache::Dep::Obsoletes) break; } } // Hm, nothing can possibly satisify this dep. Nuke it. - if (VList[0] == 0 && End->Type != pkgCache::Dep::Conflicts && + if (VList[0] == 0 && + Start->Type != pkgCache::Dep::Conflicts && + Start->Type != pkgCache::Dep::DpkgBreaks && + Start->Type != pkgCache::Dep::Obsoletes && (Flags[I->ID] & Protected) != Protected) { + bool Installed = Cache[I].Install(); Cache.MarkKeep(I); if (Cache[I].InstBroken() == false) { + // Unwind operation will be keep now + if (OrOp == OrRemove) + OrOp = OrKeep; + + // Restore + if (InOr == true && Installed == true) + Cache.MarkInstall(I, false, 0, false); + if (Debug == true) - clog << " Holding Back " << I.Name() << " because I can't find " << End.TargetPkg().Name() << endl; + clog << " Holding Back " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl; } else { if (Debug == true) - clog << " Removing " << I.Name() << " because I can't find " << End.TargetPkg().Name() << endl; - Cache.MarkDelete(I); + clog << " Removing " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl; + if (InOr == false) + Cache.MarkDelete(I); } Change = true; Done = true; } - delete [] VList; + // Try some more + if (InOr == true) + continue; + if (Done == true) break; } // Apply the kill list now if (Cache[I].InstallVer != 0) + { for (PackageKill *J = KillList; J != LEnd; J++) - { - Change = true; - if ((Cache[J->Dep] & pkgDepCache::DepGNow) == 0) { - if (J->Dep->Type == pkgCache::Dep::Conflicts) + Change = true; + if ((Cache[J->Dep] & pkgDepCache::DepGNow) == 0) + { + if (J->Dep->Type == pkgCache::Dep::Conflicts || + J->Dep->Type == pkgCache::Dep::DpkgBreaks || + J->Dep->Type == pkgCache::Dep::Obsoletes) + { + if (Debug == true) + clog << " Fixing " << I.Name() << " via remove of " << J->Pkg.Name() << endl; + Cache.MarkDelete(J->Pkg); + } + } + else { if (Debug == true) - clog << " Fixing " << I.Name() << " via remove of " << J->Pkg.Name() << endl; - Cache.MarkDelete(J->Pkg); + clog << " Fixing " << I.Name() << " via keep of " << J->Pkg.Name() << endl; + Cache.MarkKeep(J->Pkg, false, false); } - } - else - { - if (Debug == true) - clog << " Fixing " << I.Name() << " via keep of " << J->Pkg.Name() << endl; - Cache.MarkKeep(J->Pkg); - } - - if (Counter > 1) - Scores[J->Pkg->ID] = Scores[I->ID]; - } - } + + if (Counter > 1) + { + if (Scores[I->ID] > Scores[J->Pkg->ID]) + Scores[J->Pkg->ID] = Scores[I->ID]; + } + } + } + } } if (Debug == true) clog << "Done" << endl; - - delete [] Scores; - delete [] PList; - + if (Cache.BrokenCount() != 0) - return _error->Error("Internal error, pkgProblemResolver::Resolve generated breaks."); + { + // 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) + 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; } @@ -830,11 +1207,10 @@ bool pkgProblemResolver::Resolve(bool BrokenFix) system was non-broken previously. */ bool pkgProblemResolver::ResolveByKeep() { - unsigned long Size = Cache.HeaderP->PackageCount; + 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 @@ -847,7 +1223,21 @@ bool pkgProblemResolver::ResolveByKeep() *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++) @@ -858,15 +1248,15 @@ bool pkgProblemResolver::ResolveByKeep() 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 agressive and manipulate its dependencies */ if ((Flags[I->ID] & Protected) == 0) { if (Debug == true) clog << "Keeping package " << I.Name() << endl; - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); if (Cache[I].InstBroken() == false) { - K = PList; + K = PList - 1; continue; } } @@ -874,18 +1264,10 @@ bool pkgProblemResolver::ResolveByKeep() // Isolate the problem dependencies for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false;) { - // 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; D++) - { - State |= Cache[D]; - LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; - if (LastOR == true) - End = D; - } - + DepIterator Start; + DepIterator End; + D.GlobOr(Start,End); + // We only worry about critical deps. if (End.IsCritical() != true) continue; @@ -893,42 +1275,47 @@ bool pkgProblemResolver::ResolveByKeep() // Dep is ok if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall) continue; - - // Hm, the group is broken.. I have no idea how to handle this - if (Start != End) - { - clog << "Note, a broken or group was found in " << I.Name() << "." << endl; - if ((Flags[I->ID] & Protected) == 0) - Cache.MarkKeep(I); - break; - } - - if (Debug == true) - clog << "Package " << I.Name() << " has broken dep on " << End.TargetPkg().Name() << endl; - - // Look at all the possible provides on this package - pkgCache::Version **VList = End.AllTargets(); - for (pkgCache::Version **V = VList; *V != 0; V++) + + /* 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) { - pkgCache::VerIterator Ver(Cache,*V); - pkgCache::PkgIterator Pkg = Ver.ParentPkg(); - - // It is not keepable - if (Cache[Pkg].InstallVer == 0 || - Pkg->CurrentVer == 0) - continue; - - if ((Flags[I->ID] & Protected) == 0) + if (Debug == true) + clog << "Package " << I.Name() << " has broken " << Start.DepType() << " on " << Start.TargetPkg().Name() << endl; + + // Look at all the possible provides on this package + SPtrArray VList = Start.AllTargets(); + for (pkgCache::Version **V = VList; *V != 0; V++) { - if (Debug == true) - clog << " Keeping Package " << Pkg.Name() << " due to dep" << endl; - Cache.MarkKeep(Pkg); + pkgCache::VerIterator Ver(Cache,*V); + pkgCache::PkgIterator Pkg = Ver.ParentPkg(); + + // It is not keepable + if (Cache[Pkg].InstallVer == 0 || + Pkg->CurrentVer == 0) + continue; + + if ((Flags[I->ID] & Protected) == 0) + { + if (Debug == true) + clog << " Keeping Package " << Pkg.Name() << " due to " << Start.DepType() << endl; + Cache.MarkKeep(Pkg, false, false); + } + + if (Cache[I].InstBroken() == false) + break; } if (Cache[I].InstBroken() == false) break; - } + if (Start == End) + break; + Start++; + } + if (Cache[I].InstBroken() == false) break; } @@ -940,7 +1327,7 @@ bool pkgProblemResolver::ResolveByKeep() if (K == LastStop) return _error->Error("Internal Error, pkgProblemResolver::ResolveByKeep is looping on package %s.",I.Name()); LastStop = K; - K = PList; + K = PList - 1; } return true; @@ -951,15 +1338,136 @@ bool pkgProblemResolver::ResolveByKeep() /* This is used to make sure protected packages are installed */ void pkgProblemResolver::InstallProtect() { + 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 + 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->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); +} + /*}}}*/ +// CacheFile::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; +} + /*}}}*/