X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/bdae53f1bf6710404235bbbd071c55f4ec1a9330..6e7c6c3f58193fd5db3d9d598ac65a1571522a58:/apt-pkg/packagemanager.cc?ds=sidebyside diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc index 68827f53c..304d1c653 100644 --- a/apt-pkg/packagemanager.cc +++ b/apt-pkg/packagemanager.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: packagemanager.cc,v 1.19 1999/08/03 05:19:41 jgg Exp $ +// $Id: packagemanager.cc,v 1.30 2003/04/27 03:04:15 doogie Exp $ /* ###################################################################### Package Manager - Abstacts the package manager @@ -13,9 +13,6 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "apt-pkg/packagemanager.h" -#endif #include #include #include @@ -24,12 +21,18 @@ #include #include #include - /*}}}*/ +#include + +#include +#include +#include + +using namespace std; // PM::PackageManager - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache) +pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache) { FileNames = new string[Cache.Head().PackageCount]; List = 0; @@ -88,9 +91,10 @@ bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources, be downloaded. */ bool pkgPackageManager::FixMissing() { - pkgProblemResolver Resolve(Cache); + pkgDepCache::ActionGroup group(Cache); + pkgProblemResolver Resolve(&Cache); List->SetFileList(FileNames); - + bool Bad = false; for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) { @@ -99,7 +103,7 @@ bool pkgPackageManager::FixMissing() // Okay, this file is missing and we need it. Mark it for keep Bad = true; - Cache.MarkKeep(I); + Cache.MarkKeep(I, false, false); } // We have to empty the list otherwise it will not have the new changes @@ -114,6 +118,41 @@ bool pkgPackageManager::FixMissing() } /*}}}*/ +// PM::ImmediateAdd - Add the immediate flag recursivly /*{{{*/ +// --------------------------------------------------------------------- +/* This adds the immediate flag to the pkg and recursively to the + dependendies + */ +void pkgPackageManager::ImmediateAdd(PkgIterator I, bool UseInstallVer) +{ + DepIterator D; + + if(UseInstallVer) + { + if(Cache[I].InstallVer == 0) + return; + D = Cache[I].InstVerIter(Cache).DependsList(); + } else { + if (I->CurrentVer == 0) + return; + D = I.CurrentVer().DependsList(); + } + + for ( /* nothing */ ; D.end() == false; D++) + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) + { + if(!List->IsFlag(D.TargetPkg(), pkgOrderList::Immediate)) + { + if(Debug) + clog << "ImmediateAdd(): Adding Immediate flag to " << I.Name() << endl; + List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + ImmediateAdd(D.TargetPkg(), UseInstallVer); + } + } + return; +} + /*}}}*/ + // PM::CreateOrderList - Create the ordering class /*{{{*/ // --------------------------------------------------------------------- /* This populates the ordering list with all the packages that are @@ -124,39 +163,38 @@ bool pkgPackageManager::CreateOrderList() return true; delete List; - List = new pkgOrderList(Cache); + List = new pkgOrderList(&Cache); - bool NoImmConfigure = _config->FindB("APT::Immediate-Configure",false); + bool NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true); // Generate the list of affected packages and sort it for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) { + // Ignore no-version packages + if (I->VersionList == 0) + continue; + // Mark the package and its dependends for immediate configuration if (((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential || (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) && NoImmConfigure == false) { + if(Debug) + clog << "CreateOrderList(): Adding Immediate flag for " << I.Name() << endl; List->Flag(I,pkgOrderList::Immediate); - - // Look for other packages to make immediate configurea - if (Cache[I].InstallVer != 0) - for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); - D.end() == false; D++) - if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) - List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + + // Look for other install packages to make immediate configurea + ImmediateAdd(I, true); // And again with the current version. - if (I->CurrentVer != 0) - for (DepIterator D = I.CurrentVer().DependsList(); - D.end() == false; D++) - if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) - List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + ImmediateAdd(I, false); } // Not interesting if ((Cache[I].Keep() == true || Cache[I].InstVerIter(Cache) == I.CurrentVer()) && I.State() == pkgCache::PkgIterator::NeedsNothing && + (Cache[I].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall && (I.Purge() != false || Cache[I].Mode != pkgDepCache::ModeDelete || (Cache[I].iFlags & pkgDepCache::Purge) != pkgDepCache::Purge)) continue; @@ -192,21 +230,25 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D, { for (;D.end() == false; D++) { - if (D->Type != pkgCache::Dep::Conflicts) + if (D->Type != pkgCache::Dep::Conflicts && + D->Type != pkgCache::Dep::Obsoletes) + continue; + + // The package hasnt been changed + if (List->IsNow(Pkg) == false) continue; - if (D.ParentPkg() == Pkg) + // Ignore self conflicts, ignore conflicts from irrelevent versions + if (D.ParentPkg() == Pkg || D.ParentVer() != D.ParentPkg().CurrentVer()) continue; - if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false) + if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false) continue; - if (List->IsNow(Pkg) == false) - continue; - if (EarlyRemove(D.ParentPkg()) == false) - return false; - } + return _error->Error("Reverse conflicts early remove for package '%s' failed", + Pkg.Name()); + } return true; } /*}}}*/ @@ -216,7 +258,7 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D, that the final configuration is valid. */ bool pkgPackageManager::ConfigureAll() { - pkgOrderList OList(Cache); + pkgOrderList OList(&Cache); // Populate the order list for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) @@ -247,14 +289,14 @@ bool pkgPackageManager::ConfigureAll() of it's dependents. */ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg) { - pkgOrderList OList(Cache); + pkgOrderList OList(&Cache); if (DepAdd(OList,Pkg) == false) return false; if (OList.OrderConfigure() == false) return false; - + // Perform the configuring for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++) { @@ -284,8 +326,7 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) return true; if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false) return false; - - + // Put the package on the list OList.push_back(Pkg); OList.Flag(Pkg,pkgOrderList::Added); @@ -310,7 +351,7 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) if (Bad == false) continue; - Version **VList = D.AllTargets(); + SPtrArray VList = D.AllTargets(); for (Version **I = VList; *I != 0 && Bad == true; I++) { VerIterator Ver(Cache,*I); @@ -328,12 +369,12 @@ bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) if (Cache[Pkg].InstallVer != *I || (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)) continue; + if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true) Bad = !DepAdd(OList,Pkg,Depth); if (List->IsFlag(Pkg,pkgOrderList::Configured) == true) Bad = false; } - delete [] VList; } if (Bad == true) @@ -364,6 +405,32 @@ bool pkgPackageManager::EarlyRemove(PkgIterator Pkg) // Woops, it will not be re-installed! if (List->IsFlag(Pkg,pkgOrderList::InList) == false) return false; + + // Essential packages get special treatment + bool IsEssential = false; + if ((Pkg->Flags & pkgCache::Flag::Essential) != 0) + IsEssential = true; + + /* Check for packages that are the dependents of essential packages and + promote them too */ + if (Pkg->CurrentVer != 0) + { + for (DepIterator D = Pkg.RevDependsList(); D.end() == false && + IsEssential == false; D++) + if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends) + if ((D.ParentPkg()->Flags & pkgCache::Flag::Essential) != 0) + IsEssential = true; + } + + if (IsEssential == true) + { + if (_config->FindB("APT::Force-LoopBreak",false) == false) + return _error->Error(_("This installation run will require temporarily " + "removing the essential package %s due to a " + "Conflicts/Pre-Depends loop. This is often bad, " + "but if you really want to do it, activate the " + "APT::Force-LoopBreak option."),Pkg.Name()); + } bool Res = SmartRemove(Pkg); if (Cache[Pkg].Delete() == false) @@ -396,19 +463,24 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States); if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true) if (SmartConfigure(Pkg) == false) - return _error->Error("Internal Error, Could not perform immediate configuraton"); + return _error->Error("Internal Error, Could not perform immediate configuration (1) on %s",Pkg.Name()); return true; } /* See if this packages install version has any predependencies that are not met by 'now' packages. */ for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); - D.end() == false; D++) + D.end() == false; ) { - if (D->Type == pkgCache::Dep::PreDepends) + // Compute a single dependency element (glob or) + pkgCache::DepIterator Start; + pkgCache::DepIterator End; + D.GlobOr(Start,End); + + while (End->Type == pkgCache::Dep::PreDepends) { // Look for possible ok targets. - Version **VList = D.AllTargets(); + SPtrArray VList = Start.AllTargets(); bool Bad = true; for (Version **I = VList; *I != 0 && Bad == true; I++) { @@ -437,20 +509,28 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) Bad = !SmartConfigure(Pkg); } - - delete [] VList; - - if (Bad == true) - return _error->Error("Internal Error, Couldn't configure a pre-depend"); - continue; + /* If this or element did not match then continue on to the + next or element until a matching element is found */ + if (Bad == true) + { + // This triggers if someone make a pre-depends/depend loop. + if (Start == End) + return _error->Error("Couldn't configure pre-depend %s for %s, " + "probably a dependency cycle.", + End.TargetPkg().Name(),Pkg.Name()); + Start++; + } + else + break; } - if (D->Type == pkgCache::Dep::Conflicts) + if (End->Type == pkgCache::Dep::Conflicts || + End->Type == pkgCache::Dep::Obsoletes) { /* Look for conflicts. Two packages that are both in the install state cannot conflict so we don't check.. */ - Version **VList = D.AllTargets(); + SPtrArray VList = End.AllTargets(); for (Version **I = VList; *I != 0; I++) { VerIterator Ver(Cache,*I); @@ -463,13 +543,14 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) return _error->Error("Internal Error, Could not early remove %s",Pkg.Name()); } } - delete [] VList; } } // Check for reverse conflicts. - CheckRConflicts(Pkg,Pkg.RevDependsList(), - Cache[Pkg].InstVerIter(Cache).VerStr()); + if (CheckRConflicts(Pkg,Pkg.RevDependsList(), + Cache[Pkg].InstVerIter(Cache).VerStr()) == false) + return false; + for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList(); P.end() == false; P++) CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion()); @@ -482,7 +563,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) // Perform immedate configuration of the package. if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true) if (SmartConfigure(Pkg) == false) - return _error->Error("Internal Error, Could not perform immediate configuraton"); + return _error->Error("Internal Error, Could not perform immediate configuration (2) on %s",Pkg.Name()); return true; } @@ -524,7 +605,7 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() if (List->IsMissing(Pkg) == true) { if (Debug == true) - clog << "Sequence completed at" << Pkg.Name() << endl; + clog << "Sequence completed at " << Pkg.Name() << endl; if (DoneSomething == false) { _error->Error("Internal Error, ordering was unable to handle the media swap"); @@ -534,9 +615,11 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() } // Sanity check - if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing) + if (Cache[Pkg].Keep() == true && + Pkg.State() == pkgCache::PkgIterator::NeedsNothing && + (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall) { - _error->Error("Internal Error, trying to manipulate a kept package"); + _error->Error("Internal Error, trying to manipulate a kept package (%s)",Pkg.Name()); return Failed; } @@ -570,16 +653,31 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() return Completed; } /*}}}*/ +// PM::DoInstallPostFork - Does install part that happens after the fork /*{{{*/ +// --------------------------------------------------------------------- +pkgPackageManager::OrderResult +pkgPackageManager::DoInstallPostFork(int statusFd) +{ + if(statusFd > 0) + // FIXME: use SetCloseExec here once it taught about throwing + // exceptions instead of doing _exit(100) on failure + fcntl(statusFd,F_SETFD,FD_CLOEXEC); + bool goResult = Go(statusFd); + if(goResult == false) + return Failed; + + return Res; +}; + // PM::DoInstall - Does the installation /*{{{*/ // --------------------------------------------------------------------- /* This uses the filenames in FileNames and the information in the DepCache to perform the installation of packages.*/ -pkgPackageManager::OrderResult pkgPackageManager::DoInstall() +pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd) { - OrderResult Res = OrderInstall(); - if (Res != Failed) - if (Go() == false) - return Failed; - return Res; + if(DoInstallPreFork() == Failed) + return Failed; + + return DoInstallPostFork(statusFd); } /*}}}*/