X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/6321777b7bad1303a32b2d5691327adb74074e0a..de86a3614abf494c73e534c055aabcea3494f0ae:/apt-pkg/depcache.cc diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc index 1469126d2..15d7bac43 100644 --- a/apt-pkg/depcache.cc +++ b/apt-pkg/depcache.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: depcache.cc,v 1.22 2000/05/31 02:49:37 jgg Exp $ +// $Id: depcache.cc,v 1.25 2001/05/27 05:36:04 jgg Exp $ /* ###################################################################### Dependency Cache - Caches Dependency information. @@ -12,25 +12,61 @@ #pragma implementation "apt-pkg/depcache.h" #endif #include - #include #include - /*}}}*/ +#include +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include + +pkgDepCache::ActionGroup::ActionGroup(pkgDepCache &cache) : + cache(cache), released(false) +{ + ++cache.group_level; +} + +void pkgDepCache::ActionGroup::release() +{ + if(!released) + { + if(cache.group_level == 0) + std::cerr << "W: Unbalanced action groups, expect badness" << std::endl; + else + { + --cache.group_level; + + if(cache.group_level == 0) + cache.MarkAndSweep(); + } + + released = false; + } +} + +pkgDepCache::ActionGroup::~ActionGroup() +{ + release(); +} // DepCache::pkgDepCache - Constructors /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgDepCache::pkgDepCache(MMap &Map,OpProgress &Prog) : - pkgCache(Map), PkgState(0), DepState(0) +pkgDepCache::pkgDepCache(pkgCache *pCache,Policy *Plcy) : + group_level(0), Cache(pCache), PkgState(0), DepState(0) { - if (_error->PendingError() == false) - Init(&Prog); -} -pkgDepCache::pkgDepCache(MMap &Map) : - pkgCache(Map), PkgState(0), DepState(0) -{ - if (_error->PendingError() == false) - Init(0); + delLocalPolicy = 0; + LocalPolicy = Plcy; + if (LocalPolicy == 0) + delLocalPolicy = LocalPolicy = new Policy; } /*}}}*/ // DepCache::~pkgDepCache - Destructor /*{{{*/ @@ -40,6 +76,7 @@ pkgDepCache::~pkgDepCache() { delete [] PkgState; delete [] DepState; + delete delLocalPolicy; } /*}}}*/ // DepCache::Init - Generate the initial extra structures. /*{{{*/ @@ -47,18 +84,22 @@ pkgDepCache::~pkgDepCache() /* This allocats the extension buffers and initializes them. */ bool pkgDepCache::Init(OpProgress *Prog) { + // Suppress mark updates during this operation (just in case) and + // run a mark operation when Init terminates. + ActionGroup actions(*this); + delete [] PkgState; delete [] DepState; PkgState = new StateCache[Head().PackageCount]; DepState = new unsigned char[Head().DependsCount]; memset(PkgState,0,sizeof(*PkgState)*Head().PackageCount); memset(DepState,0,sizeof(*DepState)*Head().DependsCount); - + if (Prog != 0) { Prog->OverallProgress(0,2*Head().PackageCount,Head().PackageCount, - "Building Dependency Tree"); - Prog->SubProgress(Head().PackageCount,"Candidate Versions"); + _("Building dependency tree")); + Prog->SubProgress(Head().PackageCount,_("Candidate versions")); } /* Set the current state of everything. In this state all of the @@ -72,7 +113,7 @@ bool pkgDepCache::Init(OpProgress *Prog) // Find the proper cache slot StateCache &State = PkgState[I->ID]; State.iFlags = 0; - + // Figure out the install version State.CandidateVer = GetCandidateVer(I); State.InstallVer = I.CurrentVer(); @@ -86,38 +127,137 @@ bool pkgDepCache::Init(OpProgress *Prog) Prog->OverallProgress(Head().PackageCount,2*Head().PackageCount, Head().PackageCount, - "Building Dependency Tree"); - Prog->SubProgress(Head().PackageCount,"Dependency Generation"); + _("Building dependency tree")); + Prog->SubProgress(Head().PackageCount,_("Dependency generation")); } Update(Prog); - + + if(Prog != 0) + Prog->Done(); + return true; } /*}}}*/ -// DepCache::GetCandidateVer - Returns the Candidate install version /*{{{*/ -// --------------------------------------------------------------------- -/* The default just returns the target version if it exists or the - highest version. */ -pkgDepCache::VerIterator pkgDepCache::GetCandidateVer(PkgIterator Pkg, - bool AllowCurrent) -{ - // Try to use an explicit target - if (Pkg->TargetVer == 0 || - (AllowCurrent == false && Pkg.TargetVer() == Pkg.CurrentVer())) - return pkgCache::GetCandidateVer(Pkg,AllowCurrent); - else - return Pkg.TargetVer(); + +bool pkgDepCache::readStateFile(OpProgress *Prog) +{ + FileFd state_file; + string state = _config->FindDir("Dir::State") + "extended_states"; + if(FileExists(state)) { + state_file.Open(state, FileFd::ReadOnly); + int file_size = state_file.Size(); + if(Prog != NULL) + Prog->OverallProgress(0, file_size, 1, + _("Reading state information")); + + pkgTagFile tagfile(&state_file); + pkgTagSection section; + int amt=0; + while(tagfile.Step(section)) { + string pkgname = section.FindS("Package"); + pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname); + // Silently ignore unknown packages and packages with no actual + // version. + if(!pkg.end() && !pkg.VersionList().end()) { + short reason = section.FindI("Auto-Installed", 0); + if(reason > 0) + PkgState[pkg->ID].Flags |= Flag::Auto; + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::cout << "Auto-Installed : " << pkgname << std::endl; + amt+=section.size(); + if(Prog != NULL) + Prog->OverallProgress(amt, file_size, 1, + _("Reading state information")); + } + if(Prog != NULL) + Prog->OverallProgress(file_size, file_size, 1, + _("Reading state information")); + } + } + + return true; } - /*}}}*/ -// DepCache::IsImportantDep - True if the dependency is important /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool pkgDepCache::IsImportantDep(DepIterator Dep) + +bool pkgDepCache::writeStateFile(OpProgress *prog) { - return Dep.IsCritical(); + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::clog << "pkgDepCache::writeStateFile()" << std::endl; + + FileFd StateFile; + string state = _config->FindDir("Dir::State") + "extended_states"; + + // if it does not exist, create a empty one + if(!FileExists(state)) + { + StateFile.Open(state, FileFd::WriteEmpty); + StateFile.Close(); + } + + // open it + if(!StateFile.Open(state, FileFd::ReadOnly)) + return _error->Error(_("Failed to open StateFile %s"), + state.c_str()); + + FILE *OutFile; + string outfile = state + ".tmp"; + if((OutFile = fopen(outfile.c_str(),"w")) == NULL) + return _error->Error(_("Failed to write temporary StateFile %s"), + outfile.c_str()); + + // first merge with the existing sections + pkgTagFile tagfile(&StateFile); + pkgTagSection section; + std::set pkgs_seen; + const char *nullreorderlist[] = {0}; + while(tagfile.Step(section)) { + string pkgname = section.FindS("Package"); + // Silently ignore unknown packages and packages with no actual + // version. + pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname); + if(pkg.end() || pkg.VersionList().end()) + continue; + bool oldAuto = section.FindI("Auto-Installed"); + bool newAuto = (PkgState[pkg->ID].Flags & Flag::Auto); + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::clog << "Update exisiting AutoInstall info: " + << pkg.Name() << std::endl; + TFRewriteData rewrite[2]; + rewrite[0].Tag = "Auto-Installed"; + rewrite[0].Rewrite = newAuto ? "1" : "0"; + rewrite[0].NewTag = 0; + rewrite[1].Tag = 0; + TFRewrite(OutFile, section, nullreorderlist, rewrite); + fprintf(OutFile,"\n"); + pkgs_seen.insert(pkgname); + } + + // then write the ones we have not seen yet + std::ostringstream ostr; + for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); pkg++) { + if(PkgState[pkg->ID].Flags & Flag::Auto) { + if (pkgs_seen.find(pkg.Name()) != pkgs_seen.end()) { + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::clog << "Skipping already written " << pkg.Name() << std::endl; + continue; + } + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::clog << "Writing new AutoInstall: " + << pkg.Name() << std::endl; + ostr.str(string("")); + ostr << "Package: " << pkg.Name() + << "\nAuto-Installed: 1\n\n"; + fprintf(OutFile,ostr.str().c_str()); + fprintf(OutFile,"\n"); + } + } + fclose(OutFile); + + // move the outfile over the real file + rename(outfile.c_str(), state.c_str()); + + return true; } - /*}}}*/ // DepCache::CheckDep - Checks a single dependency /*{{{*/ // --------------------------------------------------------------------- @@ -132,28 +272,30 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res) /* Check simple depends. A depends -should- never self match but we allow it anyhow because dpkg does. Technically it is a packaging bug. Conflicts may never self match */ - if (Dep.TargetPkg() != Dep.ParentPkg() || Dep->Type != Dep::Conflicts) + if (Dep.TargetPkg() != Dep.ParentPkg() || + (Dep->Type != Dep::Conflicts && Dep->Type != Dep::DpkgBreaks && Dep->Type != Dep::Obsoletes)) { PkgIterator Pkg = Dep.TargetPkg(); // Check the base package if (Type == NowVersion && Pkg->CurrentVer != 0) - if (pkgCheckDep(Dep.TargetVer(), - Pkg.CurrentVer().VerStr(),Dep->CompareOp) == true) + if (VS().CheckDep(Pkg.CurrentVer().VerStr(),Dep->CompareOp, + Dep.TargetVer()) == true) return true; if (Type == InstallVersion && PkgState[Pkg->ID].InstallVer != 0) - if (pkgCheckDep(Dep.TargetVer(), - PkgState[Pkg->ID].InstVerIter(*this).VerStr(), - Dep->CompareOp) == true) + if (VS().CheckDep(PkgState[Pkg->ID].InstVerIter(*this).VerStr(), + Dep->CompareOp,Dep.TargetVer()) == true) return true; if (Type == CandidateVersion && PkgState[Pkg->ID].CandidateVer != 0) - if (pkgCheckDep(Dep.TargetVer(), - PkgState[Pkg->ID].CandidateVerIter(*this).VerStr(), - Dep->CompareOp) == true) + if (VS().CheckDep(PkgState[Pkg->ID].CandidateVerIter(*this).VerStr(), + Dep->CompareOp,Dep.TargetVer()) == true) return true; } + if (Dep->Type == Dep::Obsoletes) + return false; + // Check the providing packages PrvIterator P = Dep.TargetPkg().ProvidesList(); PkgIterator Pkg = Dep.ParentPkg(); @@ -161,7 +303,8 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res) { /* Provides may never be applied against the same package if it is a conflicts. See the comment above. */ - if (P.OwnerPkg() == Pkg && Dep->Type == Dep::Conflicts) + if (P.OwnerPkg() == Pkg && + (Dep->Type == Dep::Conflicts || Dep->Type == Dep::DpkgBreaks)) continue; // Check if the provides is a hit @@ -186,7 +329,7 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res) } // Compare the versions. - if (pkgCheckDep(Dep.TargetVer(),P.ProvideVersion(),Dep->CompareOp) == true) + if (VS().CheckDep(P.ProvideVersion(),Dep->CompareOp,Dep.TargetVer()) == true) { Res = P.OwnerPkg(); return true; @@ -199,10 +342,13 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res) // DepCache::AddSizes - Add the packages sizes to the counters /*{{{*/ // --------------------------------------------------------------------- /* Call with Mult = -1 to preform the inverse opration */ -void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult) +void pkgDepCache::AddSizes(const PkgIterator &Pkg,signed long Mult) { StateCache &P = PkgState[Pkg->ID]; + if (Pkg->VersionList == 0) + return; + if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && P.Keep() == true) return; @@ -210,8 +356,8 @@ void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult) // Compute the size data if (P.NewInstall() == true) { - iUsrSize += Mult*P.InstVerIter(*this)->InstalledSize; - iDownloadSize += Mult*P.InstVerIter(*this)->Size; + iUsrSize += (signed)(Mult*P.InstVerIter(*this)->InstalledSize); + iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size); return; } @@ -220,9 +366,9 @@ void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult) (P.InstallVer != (Version *)Pkg.CurrentVer() || (P.iFlags & ReInstall) == ReInstall) && P.InstallVer != 0) { - iUsrSize += Mult*((signed)P.InstVerIter(*this)->InstalledSize - - (signed)Pkg.CurrentVer()->InstalledSize); - iDownloadSize += Mult*P.InstVerIter(*this)->Size; + iUsrSize += (signed)(Mult*((signed)P.InstVerIter(*this)->InstalledSize - + (signed)Pkg.CurrentVer()->InstalledSize)); + iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size); return; } @@ -230,14 +376,14 @@ void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult) if (Pkg.State() == pkgCache::PkgIterator::NeedsUnpack && P.Delete() == false) { - iDownloadSize += Mult*P.InstVerIter(*this)->Size; + iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size); return; } // Removing if (Pkg->CurrentVer != 0 && P.InstallVer == 0) { - iUsrSize -= Mult*Pkg.CurrentVer()->InstalledSize; + iUsrSize -= (signed)(Mult*Pkg.CurrentVer()->InstalledSize); return; } } @@ -254,9 +400,11 @@ void pkgDepCache::AddStates(const PkgIterator &Pkg,int Add) { StateCache &State = PkgState[Pkg->ID]; - // The Package is broken + // The Package is broken (either minimal dep or policy dep) if ((State.DepState & DepInstMin) != DepInstMin) iBrokenCount += Add; + if ((State.DepState & DepInstPolicy) != DepInstPolicy) + iPolicyBrokenCount += Add; // Bad state if (Pkg.State() != PkgIterator::NeedsNothing) @@ -310,7 +458,9 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V) /* Invert for Conflicts. We have to do this twice to get the right sense for a conflicts group */ - if (D->Type == Dep::Conflicts) + if (D->Type == Dep::Conflicts || + D->Type == Dep::DpkgBreaks || + D->Type == Dep::Obsoletes) State = ~State; // Add to the group if we are within an or.. @@ -321,7 +471,9 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V) Group = 0; // Invert for Conflicts - if (D->Type == Dep::Conflicts) + if (D->Type == Dep::Conflicts || + D->Type == Dep::DpkgBreaks || + D->Type == Dep::Obsoletes) State = ~State; } } @@ -445,7 +597,7 @@ void pkgDepCache::Update(OpProgress *Prog) { // Build the dependency state. unsigned char &State = DepState[D->ID]; - State = DependencyState(D);; + State = DependencyState(D); // Add to the group if we are within an or.. Group |= State; @@ -454,7 +606,9 @@ void pkgDepCache::Update(OpProgress *Prog) Group = 0; // Invert for Conflicts - if (D->Type == Dep::Conflicts) + if (D->Type == Dep::Conflicts || + D->Type == Dep::DpkgBreaks || + D->Type == Dep::Obsoletes) State = ~State; } } @@ -467,12 +621,14 @@ void pkgDepCache::Update(OpProgress *Prog) if (Prog != 0) Prog->Progress(Done); + + readStateFile(Prog); } /*}}}*/ // DepCache::Update - Update the deps list of a package /*{{{*/ // --------------------------------------------------------------------- /* This is a helper for update that only does the dep portion of the scan. - It is mainly ment to scan reverse dependencies. */ + It is mainly meant to scan reverse dependencies. */ void pkgDepCache::Update(DepIterator D) { // Update the reverse deps @@ -482,9 +638,11 @@ void pkgDepCache::Update(DepIterator D) State = DependencyState(D); // Invert for Conflicts - if (D->Type == Dep::Conflicts) + if (D->Type == Dep::Conflicts || + D->Type == Dep::DpkgBreaks || + D->Type == Dep::Obsoletes) State = ~State; - + RemoveStates(D.ParentPkg()); BuildGroupOrs(D.ParentVer()); UpdateVerState(D.ParentPkg()); @@ -497,7 +655,7 @@ void pkgDepCache::Update(DepIterator D) /* This is called whenever the state of a package changes. It updates all cached dependencies related to this package. */ void pkgDepCache::Update(PkgIterator const &Pkg) -{ +{ // Recompute the dep of the package RemoveStates(Pkg); UpdateVerState(Pkg); @@ -524,7 +682,7 @@ void pkgDepCache::Update(PkgIterator const &Pkg) // DepCache::MarkKeep - Put the package in the keep state /*{{{*/ // --------------------------------------------------------------------- /* */ -void pkgDepCache::MarkKeep(PkgIterator const &Pkg,bool Soft) +void pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser) { // Simplifies other routines. if (Pkg.end() == true) @@ -536,6 +694,9 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg,bool Soft) Pkg.CurrentVer().Downloadable() == false) return; + /** \todo Can this be moved later in the method? */ + ActionGroup group(*this); + /* We changed the soft state all the time so the UI is a bit nicer to use */ StateCache &P = PkgState[Pkg->ID]; @@ -552,7 +713,8 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg,bool Soft) if (Pkg->VersionList == 0) return; - P.Flags &= ~Flag::Auto; + if(FromUser && !P.Marked) + P.Flags &= ~Flag::Auto; RemoveSizes(Pkg); RemoveStates(Pkg); @@ -578,6 +740,8 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge) if (Pkg.end() == true) return; + ActionGroup group(*this); + // Check that it is not already marked for delete StateCache &P = PkgState[Pkg->ID]; P.iFlags &= ~(AutoKept | Purge); @@ -600,7 +764,6 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge) else P.Mode = ModeDelete; P.InstallVer = 0; - P.Flags &= Flag::Auto; AddStates(Pkg); Update(Pkg); @@ -610,28 +773,38 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge) // DepCache::MarkInstall - Put the package in the install state /*{{{*/ // --------------------------------------------------------------------- /* */ -void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst) -{ +void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst, + unsigned long Depth, bool FromUser, + bool ForceImportantDeps) +{ + if (Depth > 100) + return; + // Simplifies other routines. if (Pkg.end() == true) return; + ActionGroup group(*this); + /* Check that it is not already marked for install and that it can be installed */ StateCache &P = PkgState[Pkg->ID]; P.iFlags &= ~AutoKept; - if (P.InstBroken() == false && (P.Mode == ModeInstall || + if ((P.InstPolicyBroken() == false && P.InstBroken() == false) && + (P.Mode == ModeInstall || P.CandidateVer == (Version *)Pkg.CurrentVer())) { if (P.CandidateVer == (Version *)Pkg.CurrentVer() && P.InstallVer == 0) - MarkKeep(Pkg); + MarkKeep(Pkg, false, FromUser); return; } - + + // See if there is even any possible instalation candidate + if (P.CandidateVer == 0) + return; // We dont even try to install virtual packages.. if (Pkg->VersionList == 0) return; - /* Target the candidate version and remove the autoflag. We reset the autoflag below if this was called recursively. Otherwise the user should have the ability to de-auto a package by changing its state */ @@ -640,7 +813,20 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst) P.Mode = ModeInstall; P.InstallVer = P.CandidateVer; - P.Flags &= ~Flag::Auto; + + if(FromUser) + { + // Set it to manual if it's a new install or cancelling the + // removal of a garbage package. + if(P.Status == 2 || (!Pkg.CurrentVer().end() && !P.Marked)) + P.Flags &= ~Flag::Auto; + } + else + { + // Set it to auto if this is a new install. + if(P.Status == 2) + P.Flags |= Flag::Auto; + } if (P.CandidateVer == (Version *)Pkg.CurrentVer()) P.Mode = ModeKeep; @@ -657,7 +843,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst) // Grok or groups DepIterator Start = Dep; bool Result = true; - for (bool LastOR = true; Dep.end() == false && LastOR == true; Dep++) + unsigned Ors = 0; + for (bool LastOR = true; Dep.end() == false && LastOR == true; Dep++,Ors++) { LastOR = (Dep->CompareOp & Dep::Or) == Dep::Or; @@ -671,38 +858,117 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst) /* Check if this dep should be consider for install. If it is a user defined important dep and we are installed a new package then - it will be installed. Otherwise we only worry about critical deps */ + it will be installed. Otherwise we only check for important + deps that have changed from the installed version + */ if (IsImportantDep(Start) == false) continue; - if (Pkg->CurrentVer != 0 && Start.IsCritical() == false) + + /* check if any ImportantDep() (but not Critial) where added + * since we installed the package + */ + bool isNewImportantDep = false; + if(!ForceImportantDeps && !Start.IsCritical()) + { + bool found=false; + VerIterator instVer = Pkg.CurrentVer(); + if(!instVer.end()) + { + for (DepIterator D = instVer.DependsList(); D.end() != true; D++) + { + //FIXME: deal better with or-groups(?) + DepIterator LocalStart = D; + + if(IsImportantDep(D) && Start.TargetPkg() == D.TargetPkg()) + found=true; + } + // this is a new dep if it was not found to be already + // a important dep of the installed pacakge + isNewImportantDep = !found; + } + } + if(isNewImportantDep) + if(_config->FindB("Debug::pkgDepCache::AutoInstall",false) == true) + std::clog << "new important dependency: " + << Start.TargetPkg().Name() << std::endl; + + // skip important deps if the package is already installed + if (Pkg->CurrentVer != 0 && Start.IsCritical() == false + && !isNewImportantDep && !ForceImportantDeps) continue; + + /* If we are in an or group locate the first or that can + succeed. We have already cached this.. */ + for (; Ors > 1 && (DepState[Start->ID] & DepCVer) != DepCVer; Ors--) + Start++; - // Now we have to take action... - PkgIterator P = Start.SmartTargetPkg(); - if ((DepState[Start->ID] & DepCVer) == DepCVer) + /* This bit is for processing the possibilty of an install/upgrade + fixing the problem */ + SPtrArray List = Start.AllTargets(); + if (Start->Type != Dep::DpkgBreaks && + (DepState[Start->ID] & DepCVer) == DepCVer) { - MarkInstall(P,true); + // Right, find the best version to install.. + Version **Cur = List; + PkgIterator P = Start.TargetPkg(); + PkgIterator InstPkg(*Cache,0); + + // See if there are direct matches (at the start of the list) + for (; *Cur != 0 && (*Cur)->ParentPkg == P.Index(); Cur++) + { + PkgIterator Pkg(*Cache,Cache->PkgP + (*Cur)->ParentPkg); + if (PkgState[Pkg->ID].CandidateVer != *Cur) + continue; + InstPkg = Pkg; + break; + } + + // Select the highest priority providing package + if (InstPkg.end() == true) + { + pkgPrioSortList(*Cache,Cur); + for (; *Cur != 0; Cur++) + { + PkgIterator Pkg(*Cache,Cache->PkgP + (*Cur)->ParentPkg); + if (PkgState[Pkg->ID].CandidateVer != *Cur) + continue; + InstPkg = Pkg; + break; + } + } - // Set the autoflag, after MarkInstall because MarkInstall unsets it - if (P->CurrentVer == 0) - PkgState[P->ID].Flags |= Flag::Auto; + if (InstPkg.end() == false) + { + if(_config->FindB("Debug::pkgDepCache::AutoInstall",false) == true) + std::clog << "Installing " << InstPkg.Name() + << " as dep of " << Pkg.Name() + << std::endl; + MarkInstall(InstPkg,true,Depth + 1, false, ForceImportantDeps); + // Set the autoflag, after MarkInstall because MarkInstall unsets it + if (P->CurrentVer == 0) + PkgState[InstPkg->ID].Flags |= Flag::Auto; + } continue; } - - // For conflicts we just de-install the package and mark as auto - if (Start->Type == Dep::Conflicts) + + /* For conflicts we just de-install the package and mark as auto, + Conflicts may not have or groups. For dpkg's Breaks we try to + upgrade the package. */ + if (Start->Type == Dep::Conflicts || Start->Type == Dep::Obsoletes || + Start->Type == Dep::DpkgBreaks) { - Version **List = Start.AllTargets(); for (Version **I = List; *I != 0; I++) { VerIterator Ver(*this,*I); PkgIterator Pkg = Ver.ParentPkg(); - - MarkDelete(Pkg); - PkgState[Pkg->ID].Flags |= Flag::Auto; + + if (Start->Type != Dep::DpkgBreaks) + MarkDelete(Pkg); + else + if (PkgState[Pkg->ID].CandidateVer != *I) + MarkInstall(Pkg,true,Depth + 1, false, ForceImportantDeps); } - delete [] List; continue; } } @@ -713,6 +979,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst) /* */ void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To) { + ActionGroup group(*this); + RemoveSizes(Pkg); RemoveStates(Pkg); @@ -726,6 +994,41 @@ void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To) AddSizes(Pkg); } /*}}}*/ +// DepCache::SetCandidateVersion - Change the candidate version /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgDepCache::SetCandidateVersion(VerIterator TargetVer) +{ + ActionGroup group(*this); + + pkgCache::PkgIterator Pkg = TargetVer.ParentPkg(); + StateCache &P = PkgState[Pkg->ID]; + + RemoveSizes(Pkg); + RemoveStates(Pkg); + + if (P.CandidateVer == P.InstallVer) + P.InstallVer = (Version *)TargetVer; + P.CandidateVer = (Version *)TargetVer; + P.Update(Pkg,*this); + + AddStates(Pkg); + Update(Pkg); + AddSizes(Pkg); +} + +void pkgDepCache::MarkAuto(const PkgIterator &Pkg, bool Auto) +{ + StateCache &state = PkgState[Pkg->ID]; + + ActionGroup group(*this); + + if(Auto) + state.Flags |= Flag::Auto; + else + state.Flags &= ~Flag::Auto; +} + /*}}}*/ // StateCache::Update - Compute the various static display things /*{{{*/ // --------------------------------------------------------------------- /* This is called whenever the Candidate version changes. */ @@ -770,21 +1073,284 @@ const char *pkgDepCache::StateCache::StripEpoch(const char *Ver) return Ver; } /*}}}*/ -// StateCache::SetCandidateVersion - Change the candidate version /*{{{*/ + +// Policy::GetCandidateVer - Returns the Candidate install version /*{{{*/ // --------------------------------------------------------------------- -/* */ -void pkgDepCache::SetCandidateVersion(VerIterator TargetVer) +/* The default just returns the highest available version that is not + a source and automatic. */ +pkgCache::VerIterator pkgDepCache::Policy::GetCandidateVer(PkgIterator Pkg) { - pkgCache::PkgIterator I = TargetVer.ParentPkg(); + /* Not source/not automatic versions cannot be a candidate version + unless they are already installed */ + VerIterator Last(*(pkgCache *)this,0); - RemoveSizes(I); - RemoveStates(I); - - PkgState[I->ID].CandidateVer = (Version *) TargetVer; - PkgState[I->ID].Update(I, *this); + for (VerIterator I = Pkg.VersionList(); I.end() == false; I++) + { + if (Pkg.CurrentVer() == I) + return I; + + for (VerFileIterator J = I.FileList(); J.end() == false; J++) + { + if ((J.File()->Flags & Flag::NotSource) != 0) + continue; + + /* Stash the highest version of a not-automatic source, we use it + if there is nothing better */ + if ((J.File()->Flags & Flag::NotAutomatic) != 0) + { + if (Last.end() == true) + Last = I; + continue; + } + + return I; + } + } - AddStates(I); - Update(I); - AddSizes(I); + return Last; +} + /*}}}*/ + /*}}}*/ + +pkgDepCache::DefaultRootSetFunc::DefaultRootSetFunc() + : constructedSuccessfully(false) +{ + Configuration::Item const *Opts; + Opts = _config->Tree("APT::NeverAutoRemove"); + if (Opts != 0 && Opts->Child != 0) + { + Opts = Opts->Child; + for (; Opts != 0; Opts = Opts->Next) + { + if (Opts->Value.empty() == true) + continue; + + regex_t *p = new regex_t; + if(regcomp(p,Opts->Value.c_str(), + REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0) + { + regfree(p); + delete p; + _error->Error("Regex compilation error for APT::NeverAutoRemove"); + return; + } + + rootSetRegexp.push_back(p); + } + } + + constructedSuccessfully = true; +} + +pkgDepCache::DefaultRootSetFunc::~DefaultRootSetFunc() +{ + for(unsigned int i = 0; i < rootSetRegexp.size(); i++) + { + regfree(rootSetRegexp[i]); + delete rootSetRegexp[i]; + } +} + + +bool pkgDepCache::DefaultRootSetFunc::InRootSet(const pkgCache::PkgIterator &pkg) +{ + for(unsigned int i = 0; i < rootSetRegexp.size(); i++) + if (regexec(rootSetRegexp[i], pkg.Name(), 0, 0, 0) == 0) + return true; + + return false; +} + +pkgDepCache::InRootSetFunc *pkgDepCache::GetRootSetFunc() +{ + DefaultRootSetFunc *f = new DefaultRootSetFunc; + if(f->wasConstructedSuccessfully()) + return f; + else + { + delete f; + return NULL; + } +} + +bool pkgDepCache::MarkFollowsRecommends() +{ + return _config->FindB("APT::AutoRemove::RecommendsImportant", true); +} + +bool pkgDepCache::MarkFollowsSuggests() +{ + return _config->FindB("APT::AutoRemove::SuggestsImportant", false); +} + +// the main mark algorithm +bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc) +{ + bool follow_recommends; + bool follow_suggests; + + // init the states + for(PkgIterator p = PkgBegin(); !p.end(); ++p) + { + PkgState[p->ID].Marked = false; + PkgState[p->ID].Garbage = false; + + // debug output + if(_config->FindB("Debug::pkgAutoRemove",false) + && PkgState[p->ID].Flags & Flag::Auto) + std::clog << "AutoDep: " << p.Name() << std::endl; + } + + // init vars + follow_recommends = MarkFollowsRecommends(); + follow_suggests = MarkFollowsSuggests(); + + + + // do the mark part, this is the core bit of the algorithm + for(PkgIterator p = PkgBegin(); !p.end(); ++p) + { + if(!(PkgState[p->ID].Flags & Flag::Auto) || + (p->Flags & Flag::Essential) || + userFunc.InRootSet(p)) + + { + // the package is installed (and set to keep) + if(PkgState[p->ID].Keep() && !p.CurrentVer().end()) + MarkPackage(p, p.CurrentVer(), + follow_recommends, follow_suggests); + // the package is to be installed + else if(PkgState[p->ID].Install()) + MarkPackage(p, PkgState[p->ID].InstVerIter(*this), + follow_recommends, follow_suggests); + } + } + + return true; +} + +// mark a single package in Mark-and-Sweep +void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg, + const pkgCache::VerIterator &ver, + bool follow_recommends, + bool follow_suggests) +{ + pkgDepCache::StateCache &state = PkgState[pkg->ID]; + VerIterator candver = state.CandidateVerIter(*this); + VerIterator instver = state.InstVerIter(*this); + +#if 0 + // If a package was garbage-collected but is now being marked, we + // should re-select it + // For cases when a pkg is set to upgrade and this trigger the + // removal of a no-longer used dependency. if the pkg is set to + // keep again later it will result in broken deps + if(state.Delete() && state.RemoveReason = Unused) + { + if(ver==candver) + mark_install(pkg, false, false, NULL); + else if(ver==pkg.CurrentVer()) + MarkKeep(pkg, false, false); + + instver=state.InstVerIter(*this); + } +#endif + + // Ignore versions other than the InstVer, and ignore packages + // that are already going to be removed or just left uninstalled. + if(!(ver == instver && !instver.end())) + return; + + // if we are marked already we are done + if(state.Marked) + return; + + //std::cout << "Setting Marked for: " << pkg.Name() << std::endl; + state.Marked=true; + + if(!ver.end()) + { + for(DepIterator d = ver.DependsList(); !d.end(); ++d) + { + if(d->Type == Dep::Depends || + d->Type == Dep::PreDepends || + (follow_recommends && + d->Type == Dep::Recommends) || + (follow_suggests && + d->Type == Dep::Suggests)) + { + // Try all versions of this package. + for(VerIterator V = d.TargetPkg().VersionList(); + !V.end(); ++V) + { + if(_system->VS->CheckDep(V.VerStr(), d->CompareOp, d.TargetVer())) + { + MarkPackage(V.ParentPkg(), V, + follow_recommends, follow_suggests); + } + } + // Now try virtual packages + for(PrvIterator prv=d.TargetPkg().ProvidesList(); + !prv.end(); ++prv) + { + if(_system->VS->CheckDep(prv.ProvideVersion(), d->CompareOp, + d.TargetVer())) + { + MarkPackage(prv.OwnerPkg(), prv.OwnerVer(), + follow_recommends, follow_suggests); + } + } + } + } + } +} + +bool pkgDepCache::Sweep() +{ + // do the sweep + for(PkgIterator p=PkgBegin(); !p.end(); ++p) + { + StateCache &state=PkgState[p->ID]; + + // if it is not marked and it is installed, it's garbage + if(!state.Marked && (!p.CurrentVer().end() || state.Install()) && + !state.Delete()) + { + state.Garbage=true; + if(_config->FindB("Debug::pkgAutoRemove",false)) + std::cout << "Garbage: " << p.Name() << std::endl; + } + } + + return true; +} + +// Policy::IsImportantDep - True if the dependency is important /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool pkgDepCache::Policy::IsImportantDep(DepIterator Dep) +{ + if(Dep.IsCritical()) + return true; + else if(Dep->Type == pkgCache::Dep::Recommends) + { + if ( _config->FindB("APT::Install-Recommends", false)) + return true; + // we suport a special mode to only install-recommends for certain + // sections + // FIXME: this is a meant as a temporarly solution until the + // recommends are cleaned up + string s = _config->Find("APT::Install-Recommends-Section",""); + if(s.size() > 0) + { + const char *sec = Dep.ParentVer().Section(); + if (sec && strcmp(sec, s.c_str()) == 0) + return true; + } + } + else if(Dep->Type == pkgCache::Dep::Suggests) + return _config->FindB("APT::Install-Suggests", false); + + return false; } /*}}}*/