X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/46361a17f0cb6f4f7c46705c5af71b6680cf5b1d..c1cd1ac2fd051a11ec5c3eafad68b39521594ed6:/apt-pkg/orderlist.cc?ds=sidebyside diff --git a/apt-pkg/orderlist.cc b/apt-pkg/orderlist.cc index 7c950292a..3a179b2a2 100644 --- a/apt-pkg/orderlist.cc +++ b/apt-pkg/orderlist.cc @@ -63,6 +63,8 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ +#include + #include #include #include @@ -80,16 +82,14 @@ pkgOrderList *pkgOrderList::Me = 0; // OrderList::pkgOrderList - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgOrderList::pkgOrderList(pkgDepCache *pCache) : Cache(*pCache) +pkgOrderList::pkgOrderList(pkgDepCache *pCache) : Cache(*pCache), + Primary(NULL), Secondary(NULL), + RevDepends(NULL), Remove(NULL), + AfterEnd(NULL), FileList(NULL), + LoopCount(-1), Depth(0) { - FileList = 0; - Primary = 0; - Secondary = 0; - RevDepends = 0; - Remove = 0; - LoopCount = -1; Debug = _config->FindB("Debug::pkgOrderList",false); - + /* Construct the arrays, egcs 1.0.1 bug requires the package count hack */ unsigned long Size = Cache.Head().PackageCount; @@ -117,7 +117,8 @@ bool pkgOrderList::IsMissing(PkgIterator Pkg) return false; // Skip Packages that need configure only. - if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && + if ((Pkg.State() == pkgCache::PkgIterator::NeedsConfigure || + Pkg.State() == pkgCache::PkgIterator::NeedsNothing) && Cache[Pkg].Keep() == true) return false; @@ -127,10 +128,6 @@ bool pkgOrderList::IsMissing(PkgIterator Pkg) if (FileList[Pkg->ID].empty() == false) return false; - // Missing Pseudo packages are missing if the real package is missing - if (pkgCache::VerIterator(Cache, Cache[Pkg].CandidateVer).Pseudo() == true) - return IsMissing(Pkg.Group().FindPkg("all")); - return true; } /*}}}*/ @@ -148,14 +145,14 @@ bool pkgOrderList::DoRun() Depth = 0; WipeFlags(Added | AddPending | Loop | InList); - for (iterator I = List; I != End; I++) + for (iterator I = List; I != End; ++I) Flag(*I,InList); // Rebuild the main list into the temp list. iterator OldEnd = End; End = NList; - for (iterator I = List; I != OldEnd; I++) - if (VisitNode(PkgIterator(Cache,*I)) == false) + for (iterator I = List; I != OldEnd; ++I) + if (VisitNode(PkgIterator(Cache,*I), "DoRun") == false) { End = OldEnd; return false; @@ -200,7 +197,7 @@ bool pkgOrderList::OrderCritical() { clog << "** Critical Unpack ordering done" << endl; - for (iterator I = List; I != End; I++) + for (iterator I = List; I != End; ++I) { PkgIterator P(Cache,*I); if (IsNow(P) == true) @@ -225,7 +222,7 @@ bool pkgOrderList::OrderUnpack(string *FileList) WipeFlags(After); // Set the inlist flag - for (iterator I = List; I != End; I++) + for (iterator I = List; I != End; ++I) { PkgIterator P(Cache,*I); if (IsMissing(P) == true && IsNow(P) == true) @@ -273,7 +270,7 @@ bool pkgOrderList::OrderUnpack(string *FileList) { clog << "** Unpack ordering done" << endl; - for (iterator I = List; I != End; I++) + for (iterator I = List; I != End; ++I) { PkgIterator P(Cache,*I); if (IsNow(P) == true) @@ -326,7 +323,7 @@ int pkgOrderList::Score(PkgIterator Pkg) Score += ScoreImmediate; for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); - D.end() == false; D++) + D.end() == false; ++D) if (D->Type == pkgCache::Dep::PreDepends) { Score += ScorePreDepends; @@ -491,44 +488,76 @@ bool pkgOrderList::VisitRProvides(DepFunc F,VerIterator Ver) return true; bool Res = true; - for (PrvIterator P = Ver.ProvidesList(); P.end() == false; P++) + for (PrvIterator P = Ver.ProvidesList(); P.end() == false; ++P) Res &= (this->*F)(P.ParentPkg().RevDependsList()); - return true; + return Res; } /*}}}*/ // OrderList::VisitProvides - Visit all of the providing packages /*{{{*/ // --------------------------------------------------------------------- -/* This routine calls visit on all providing packages. */ +/* This routine calls visit on all providing packages. + + If the dependency is negative it first visits packages which are + intended to be removed and after that all other packages. + It does so to avoid situations in which this package is used to + satisfy a (or-group/provides) dependency of another package which + could have been satisfied also by upgrading another package - + otherwise we have more broken packages dpkg needs to auto- + deconfigure and in very complicated situations it even decides + against it! */ bool pkgOrderList::VisitProvides(DepIterator D,bool Critical) -{ +{ SPtrArray List = D.AllTargets(); - for (Version **I = List; *I != 0; I++) + for (Version **I = List; *I != 0; ++I) { VerIterator Ver(Cache,*I); PkgIterator Pkg = Ver.ParentPkg(); + if (D.IsNegative() == true && Cache[Pkg].Delete() == false) + continue; + if (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing) continue; - - if (D->Type != pkgCache::Dep::Conflicts && - D->Type != pkgCache::Dep::DpkgBreaks && - D->Type != pkgCache::Dep::Obsoletes && + + if (D.IsNegative() == false && Cache[Pkg].InstallVer != *I) continue; - - if ((D->Type == pkgCache::Dep::Conflicts || - D->Type == pkgCache::Dep::DpkgBreaks || - D->Type == pkgCache::Dep::Obsoletes) && + + if (D.IsNegative() == true && (Version *)Pkg.CurrentVer() != *I) continue; - + + // Skip over missing files + if (Critical == false && IsMissing(D.ParentPkg()) == true) + continue; + + if (VisitNode(Pkg, "Provides-1") == false) + return false; + } + if (D.IsNegative() == false) + return true; + for (Version **I = List; *I != 0; ++I) + { + VerIterator Ver(Cache,*I); + PkgIterator Pkg = Ver.ParentPkg(); + + if (Cache[Pkg].Delete() == true) + continue; + + if (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing) + continue; + + if ((Version *)Pkg.CurrentVer() != *I) + continue; + // Skip over missing files if (Critical == false && IsMissing(D.ParentPkg()) == true) continue; - if (VisitNode(Pkg) == false) + if (VisitNode(Pkg, "Provides-2") == false) return false; } + return true; } /*}}}*/ @@ -537,7 +566,7 @@ bool pkgOrderList::VisitProvides(DepIterator D,bool Critical) /* This is the core ordering routine. It calls the set dependency consideration functions which then potentialy call this again. Finite depth is achived through the colouring mechinism. */ -bool pkgOrderList::VisitNode(PkgIterator Pkg) +bool pkgOrderList::VisitNode(PkgIterator Pkg, char const* from) { // Looping or irrelevent. // This should probably trancend not installed packages @@ -548,7 +577,7 @@ bool pkgOrderList::VisitNode(PkgIterator Pkg) if (Debug == true) { for (int j = 0; j != Depth; j++) clog << ' '; - clog << "Visit " << Pkg.FullName() << endl; + clog << "Visit " << Pkg.FullName() << " from " << from << endl; } Depth++; @@ -622,7 +651,7 @@ bool pkgOrderList::VisitNode(PkgIterator Pkg) Loops are preprocessed and logged. */ bool pkgOrderList::DepUnPackCrit(DepIterator D) { - for (; D.end() == false; D++) + for (; D.end() == false; ++D) { if (D.Reverse() == true) { @@ -643,16 +672,14 @@ bool pkgOrderList::DepUnPackCrit(DepIterator D) if (CheckDep(D) == true) continue; - if (VisitNode(D.ParentPkg()) == false) + if (VisitNode(D.ParentPkg(), "UnPackCrit") == false) return false; } else { /* Forward critical dependencies MUST be correct before the package can be unpacked. */ - if (D->Type != pkgCache::Dep::Conflicts && - D->Type != pkgCache::Dep::DpkgBreaks && - D->Type != pkgCache::Dep::Obsoletes && + if (D.IsNegative() == false && D->Type != pkgCache::Dep::PreDepends) continue; @@ -702,7 +729,7 @@ bool pkgOrderList::DepUnPackPreD(DepIterator D) if (D.Reverse() == true) return DepUnPackCrit(D); - for (; D.end() == false; D++) + for (; D.end() == false; ++D) { if (D.IsCritical() == false) continue; @@ -745,7 +772,7 @@ bool pkgOrderList::DepUnPackPre(DepIterator D) if (D.Reverse() == true) return true; - for (; D.end() == false; D++) + for (; D.end() == false; ++D) { /* Only consider the PreDepends or Depends. Depends are only considered at the lowest depth or in the case of immediate @@ -800,7 +827,7 @@ bool pkgOrderList::DepUnPackPre(DepIterator D) bool pkgOrderList::DepUnPackDep(DepIterator D) { - for (; D.end() == false; D++) + for (; D.end() == false; ++D) if (D.IsCritical() == true) { if (D.Reverse() == true) @@ -820,7 +847,7 @@ bool pkgOrderList::DepUnPackDep(DepIterator D) if (IsMissing(D.ParentPkg()) == true) continue; - if (VisitNode(D.ParentPkg()) == false) + if (VisitNode(D.ParentPkg(), "UnPackDep-Parent") == false) return false; } else @@ -834,7 +861,7 @@ bool pkgOrderList::DepUnPackDep(DepIterator D) if (CheckDep(D) == true) continue; - if (VisitNode(D.TargetPkg()) == false) + if (VisitNode(D.TargetPkg(), "UnPackDep-Target") == false) return false; } } @@ -855,7 +882,7 @@ bool pkgOrderList::DepConfigure(DepIterator D) if (D.Reverse() == true) return true; - for (; D.end() == false; D++) + for (; D.end() == false; ++D) if (D->Type == pkgCache::Dep::Depends) if (VisitProvides(D,false) == false) return false; @@ -877,7 +904,7 @@ bool pkgOrderList::DepRemove(DepIterator D) { if (D.Reverse() == false) return true; - for (; D.end() == false; D++) + for (; D.end() == false; ++D) if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) { // Duplication elimination, consider the current version only @@ -885,13 +912,16 @@ bool pkgOrderList::DepRemove(DepIterator D) continue; /* We wish to see if the dep on the parent package is okay - in the removed (install) state of the target pkg. */ + in the removed (install) state of the target pkg. */ + bool tryFixDeps = false; if (CheckDep(D) == true) { // We want to catch loops with the code below. if (IsFlag(D.ParentPkg(),AddPending) == false) continue; } + else + tryFixDeps = true; // This is the loop detection if (IsFlag(D.ParentPkg(),Added) == true || @@ -902,11 +932,105 @@ bool pkgOrderList::DepRemove(DepIterator D) continue; } + if (tryFixDeps == true) + { + for (pkgCache::DepIterator F = D.ParentPkg().CurrentVer().DependsList(); + F.end() == false; ++F) + { + if (F->Type != pkgCache::Dep::Depends && F->Type != pkgCache::Dep::PreDepends) + continue; + // Check the Providers + if (F.TargetPkg()->ProvidesList != 0) + { + pkgCache::PrvIterator Prov = F.TargetPkg().ProvidesList(); + for (; Prov.end() == false; ++Prov) + { + pkgCache::PkgIterator const P = Prov.OwnerPkg(); + if (IsFlag(P, InList) == true && + IsFlag(P, AddPending) == true && + IsFlag(P, Added) == false && + Cache[P].InstallVer == 0) + break; + } + if (Prov.end() == false) + for (pkgCache::PrvIterator Prv = F.TargetPkg().ProvidesList(); + Prv.end() == false; ++Prv) + { + pkgCache::PkgIterator const P = Prv.OwnerPkg(); + if (IsFlag(P, InList) == true && + IsFlag(P, AddPending) == false && + Cache[P].InstallVer != 0 && + VisitNode(P, "Remove-P") == true) + { + Flag(P, Immediate); + tryFixDeps = false; + break; + } + } + if (tryFixDeps == false) + break; + } + + // Check for Or groups + if ((F->CompareOp & pkgCache::Dep::Or) != pkgCache::Dep::Or) + continue; + // Lets see if the package is part of the Or group + pkgCache::DepIterator S = F; + for (; S.end() == false; ++S) + { + if (S.TargetPkg() == D.TargetPkg()) + break; + if ((S->CompareOp & pkgCache::Dep::Or) != pkgCache::Dep::Or || + CheckDep(S)) // Or group is satisfied by another package + for (;S.end() == false; ++S); + } + if (S.end() == true) + continue; + // skip to the end of the or group + for (;S.end() == false && (S->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; ++S); + ++S; + // The soon to be removed is part of the Or group + // start again in the or group and find something which will serve as replacement + for (; F.end() == false && F != S; ++F) + { + if (IsFlag(F.TargetPkg(), InList) == true && + IsFlag(F.TargetPkg(), AddPending) == false && + Cache[F.TargetPkg()].InstallVer != 0 && + VisitNode(F.TargetPkg(), "Remove-Target") == true) + { + Flag(F.TargetPkg(), Immediate); + tryFixDeps = false; + break; + } + else if (F.TargetPkg()->ProvidesList != 0) + { + pkgCache::PrvIterator Prv = F.TargetPkg().ProvidesList(); + for (; Prv.end() == false; ++Prv) + { + if (IsFlag(Prv.OwnerPkg(), InList) == true && + IsFlag(Prv.OwnerPkg(), AddPending) == false && + Cache[Prv.OwnerPkg()].InstallVer != 0 && + VisitNode(Prv.OwnerPkg(), "Remove-Owner") == true) + { + Flag(Prv.OwnerPkg(), Immediate); + tryFixDeps = false; + break; + } + } + if (Prv.end() == false) + break; + } + } + if (tryFixDeps == false) + break; + } + } + // Skip over missing files if (IsMissing(D.ParentPkg()) == true) continue; - if (VisitNode(D.ParentPkg()) == false) + if (VisitNode(D.ParentPkg(), "Remove-Parent") == false) return false; } @@ -933,8 +1057,10 @@ bool pkgOrderList::AddLoop(DepIterator D) Loops[LoopCount++] = D; // Mark the packages as being part of a loop. - Flag(D.TargetPkg(),Loop); - Flag(D.ParentPkg(),Loop); + //Flag(D.TargetPkg(),Loop); + //Flag(D.ParentPkg(),Loop); + /* This is currently disabled because the Loop flag is being used for + loop management in the package manager. Check the orderlist.h file for more info */ return true; } /*}}}*/ @@ -983,10 +1109,14 @@ bool pkgOrderList::CheckDep(DepIterator D) /* Conflicts requires that all versions are not present, depends just needs one */ - if (D->Type != pkgCache::Dep::Conflicts && - D->Type != pkgCache::Dep::DpkgBreaks && - D->Type != pkgCache::Dep::Obsoletes) + if (D.IsNegative() == false) { + // ignore provides by older versions of this package + if (((D.Reverse() == false && Pkg == D.ParentPkg()) || + (D.Reverse() == true && Pkg == D.TargetPkg())) && + Cache[Pkg].InstallVer != *I) + continue; + /* Try to find something that does not have the after flag set if at all possible */ if (IsFlag(Pkg,After) == true)