X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/281daf46d178d4fb6f43e8b13b9b51736db84d74..1e3f4083db29bba600b9725e9456b0e140975c99:/apt-pkg/packagemanager.cc diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc index 8556687ad..5f9a31264 100644 --- a/apt-pkg/packagemanager.cc +++ b/apt-pkg/packagemanager.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: packagemanager.cc,v 1.15 1999/07/03 03:10:35 jgg Exp $ +// $Id: packagemanager.cc,v 1.30 2003/04/27 03:04:15 doogie Exp $ /* ###################################################################### Package Manager - Abstacts the package manager @@ -13,9 +13,8 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "apt-pkg/packagemanager.h" -#endif +#include + #include #include #include @@ -24,16 +23,26 @@ #include #include #include +#include + +#include + +#include /*}}}*/ +using namespace std; + +bool pkgPackageManager::SigINTStop = false; // PM::PackageManager - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache) +pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache), + List(NULL), Res(Incomplete) { FileNames = new string[Cache.Head().PackageCount]; - List = 0; Debug = _config->FindB("Debug::pkgPackageManager",false); + NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true); + ImmConfigureAll = _config->FindB("APT::Immediate-Configure-All",false); } /*}}}*/ // PM::PackageManager - Destructor /*{{{*/ @@ -54,10 +63,13 @@ bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources, if (CreateOrderList() == false) return false; - if (List->OrderUnpack() == false) + bool const ordering = + _config->FindB("PackageManager::UnpackAll",true) ? + List->OrderUnpack() : List->OrderCritical(); + if (ordering == false) return _error->Error("Internal ordering error"); - for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I) { PkgIterator Pkg(Cache,*I); FileNames[Pkg->ID] = string(); @@ -74,7 +86,7 @@ bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources, // Skip already processed packages if (List->IsNow(Pkg) == false) continue; - + new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache), FileNames[Pkg->ID]); } @@ -87,31 +99,25 @@ bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources, /* This is called to correct the installation when packages could not 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++) + for (PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I) { - // These don't need files - if (Cache[I].Keep() == true) - continue; - if (Cache[I].Delete() == true) - continue; - - // We have a filename - if (FileNames[I->ID].empty() == false) - continue; - - // Skip Packages that need configure only. - if (I.State() == pkgCache::PkgIterator::NeedsConfigure && - Cache[I].Keep() == true) + if (List->IsMissing(I) == false) continue; - + // 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 + delete List; + List = 0; if (Bad == false) return true; @@ -120,7 +126,40 @@ bool pkgPackageManager::FixMissing() return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0; } /*}}}*/ +// 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, unsigned const int &Depth) +{ + 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 << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << D.TargetPkg() << " cause of " << D.DepType() << " " << I.FullName() << endl; + List->Flag(D.TargetPkg(),pkgOrderList::Immediate); + ImmediateAdd(D.TargetPkg(), UseInstallVer, Depth + 1); + } + } + return; +} + /*}}}*/ // PM::CreateOrderList - Create the ordering class /*{{{*/ // --------------------------------------------------------------------- /* This populates the ordering list with all the packages that are @@ -131,39 +170,42 @@ bool pkgPackageManager::CreateOrderList() return true; delete List; - List = new pkgOrderList(Cache); - - bool NoImmConfigure = _config->FindB("APT::Immediate-Configure",false); + List = new pkgOrderList(&Cache); + + if (Debug && ImmConfigureAll) + clog << "CreateOrderList(): Adding Immediate flag for all packages because of APT::Immediate-Configure-All" << endl; // Generate the list of affected packages and sort it - for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++) + 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 ((((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) && + NoImmConfigure == false) || ImmConfigureAll) { + if(Debug && !ImmConfigureAll) + clog << "CreateOrderList(): Adding Immediate flag for " << I.FullName() << 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); - - // 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); + if (!ImmConfigureAll) { + // Look for other install packages to make immediate configurea + ImmediateAdd(I, true); + + // And again with the current version. + ImmediateAdd(I, false); + } } // Not interesting if ((Cache[I].Keep() == true || Cache[I].InstVerIter(Cache) == I.CurrentVer()) && - I.State() == pkgCache::PkgIterator::NeedsNothing) + 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; // Append it to the list @@ -173,7 +215,7 @@ bool pkgPackageManager::CreateOrderList() return true; } /*}}}*/ -// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /*{{{*/ +// PM::DepAlwaysTrue - Returns true if this dep is irrelevant /*{{{*/ // --------------------------------------------------------------------- /* The restriction on provides is to eliminate the case when provides are transitioning between valid states [ie exim to smail] */ @@ -195,50 +237,68 @@ bool pkgPackageManager::DepAlwaysTrue(DepIterator D) bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D, const char *Ver) { - for (;D.end() == false; 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 hasn't been changed + if (List->IsNow(Pkg) == false) continue; - if (D.ParentPkg() == Pkg) + // Ignore self conflicts, ignore conflicts from irrelevant versions + if (D.IsIgnorable(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.FullName().c_str()); + } return true; } /*}}}*/ // PM::ConfigureAll - Run the all out configuration /*{{{*/ // --------------------------------------------------------------------- /* This configures every package. It is assumed they are all unpacked and - that the final configuration is valid. */ + that the final configuration is valid. This is also used to catch packages + that have not been configured when using ImmConfigureAll */ bool pkgPackageManager::ConfigureAll() { - pkgOrderList OList(Cache); + pkgOrderList OList(&Cache); // Populate the order list - for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I) if (List->IsFlag(pkgCache::PkgIterator(Cache,*I), pkgOrderList::UnPacked) == true) OList.push_back(*I); if (OList.OrderConfigure() == false) return false; - + + std::string const conf = _config->Find("PackageManager::Configure","all"); + bool const ConfigurePkgs = (conf == "all"); + // Perform the configuring - for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++) + for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); ++I) { PkgIterator Pkg(Cache,*I); - if (Configure(Pkg) == false) + /* Check if the package has been configured, this can happen if SmartConfigure + calls its self */ + if (List->IsFlag(Pkg,pkgOrderList::Configured)) continue; + + if (ConfigurePkgs == true && SmartConfigure(Pkg, 0) == false) { + if (ImmConfigureAll) + _error->Error(_("Could not perform immediate configuration on '%s'. " + "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),1); + else + _error->Error("Internal error, packages left unconfigured. %s",Pkg.FullName().c_str()); return false; + } List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); } @@ -248,109 +308,225 @@ bool pkgPackageManager::ConfigureAll() /*}}}*/ // PM::SmartConfigure - Perform immediate configuration of the pkg /*{{{*/ // --------------------------------------------------------------------- -/* This routine scheduals the configuration of the given package and all - of it's dependents. */ -bool pkgPackageManager::SmartConfigure(PkgIterator Pkg) -{ - pkgOrderList OList(Cache); - - if (DepAdd(OList,Pkg) == false) - return false; +/* This function tries to put the system in a state where Pkg can be configured. + This involves checking each of Pkg's dependanies and unpacking and + configuring packages where needed. - if (OList.OrderConfigure() == false) - return false; + Note on failure: This method can fail, without causing any problems. + This can happen when using Immediate-Configure-All, SmartUnPack may call + SmartConfigure, it may fail because of a complex dependency situation, but + a error will only be reported if ConfigureAll fails. This is why some of the + messages this function reports on failure (return false;) as just warnings + only shown when debuging*/ +bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth) +{ + // If this is true, only check and correct and dependencies without the Loop flag + bool const PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop); - // Perform the configuring - for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++) - { - PkgIterator Pkg(Cache,*I); - - if (Configure(Pkg) == false) - return false; - - List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); + if (Debug) { + VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer); + clog << OutputInDepth(Depth) << "SmartConfigure " << Pkg.FullName() << " (" << InstallVer.VerStr() << ")"; + if (PkgLoop) + clog << " (Only Correct Dependencies)"; + clog << endl; } - // Sanity Check - if (List->IsFlag(Pkg,pkgOrderList::Configured) == false) - return _error->Error("Internal error, could not immediate configure %s",Pkg.Name()); - - return true; -} - /*}}}*/ -// PM::DepAdd - Add all dependents to the oder list /*{{{*/ -// --------------------------------------------------------------------- -/* This recursively adds all dependents to the order list */ -bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth) -{ - if (OList.IsFlag(Pkg,pkgOrderList::Added) == true) - return true; - if (List->IsFlag(Pkg,pkgOrderList::Configured) == true) - 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); - Depth++; - - // Check the dependencies to see if they are all satisfied. - bool Bad = false; - for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;) - { - if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends) - { - D++; - continue; - } + VerIterator const instVer = Cache[Pkg].InstVerIter(Cache); - // Grok or groups - Bad = true; - for (bool LastOR = true; D.end() == false && LastOR == true; D++) + /* Because of the ordered list, most dependencies should be unpacked, + however if there is a loop (A depends on B, B depends on A) this will not + be the case, so check for dependencies before configuring. */ + bool Bad = false, Changed = false; + const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 5000); + unsigned int i=0; + std::list needConfigure; + do + { + Changed = false; + for (DepIterator D = instVer.DependsList(); D.end() == false; ) { - LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; - - if (Bad == false) + // Compute a single dependency element (glob or) + pkgCache::DepIterator Start, End; + D.GlobOr(Start,End); + + if (End->Type != pkgCache::Dep::Depends) continue; + Bad = true; - Version **VList = D.AllTargets(); - for (Version **I = VList; *I != 0 && Bad == true; I++) + // Check for dependencies that have not been unpacked, probably due to loops. + for (DepIterator Cur = Start; true; ++Cur) { - VerIterator Ver(Cache,*I); - PkgIterator Pkg = Ver.ParentPkg(); + SPtrArray VList = Cur.AllTargets(); - // See if the current version is ok - if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true && - Pkg.State() == PkgIterator::NeedsNothing) + for (Version **I = VList; *I != 0; ++I) { - Bad = false; - continue; + VerIterator Ver(Cache,*I); + PkgIterator DepPkg = Ver.ParentPkg(); + + // Check if the current version of the package is available and will satisfy this dependency + if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true && + List->IsFlag(DepPkg,pkgOrderList::Removed) == false && + DepPkg.State() == PkgIterator::NeedsNothing) + { + Bad = false; + break; + } + + // Check if the version that is going to be installed will satisfy the dependency + if (Cache[DepPkg].InstallVer != *I || List->IsNow(DepPkg) == false) + continue; + + if (PkgLoop == true) + { + if (Debug) + std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl; + Bad = false; + break; + } + else + { + if (Debug) + clog << OutputInDepth(Depth) << "Unpacking " << DepPkg.FullName() << " to avoid loop " << Cur << endl; + if (PkgLoop == false) + List->Flag(Pkg,pkgOrderList::Loop); + if (SmartUnPack(DepPkg, true, Depth + 1) == true) + { + Bad = false; + if (List->IsFlag(DepPkg,pkgOrderList::Loop) == false) + Changed = true; + } + if (PkgLoop == false) + List->RmFlag(Pkg,pkgOrderList::Loop); + if (Bad == false) + break; + } } - - // Not the install version - 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; + + if (Cur == End || Bad == false) + break; } - delete [] VList; + + if (Bad == false) + continue; + + needConfigure.push_back(Start); } - - if (Bad == true) + if (i++ > max_loops) + return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (1) for %s, aborting", Pkg.FullName().c_str()); + } while (Changed == true); + + Bad = false, Changed = false, i = 0; + do + { + Changed = false; + for (std::list::const_iterator D = needConfigure.begin(); D != needConfigure.end(); ++D) { - OList.Flag(Pkg,0,pkgOrderList::Added); - OList.pop_back(); - Depth--; - return false; + // Compute a single dependency element (glob or) without modifying D + pkgCache::DepIterator Start, End; + { + pkgCache::DepIterator Discard = *D; + Discard.GlobOr(Start,End); + } + + if (End->Type != pkgCache::Dep::Depends) + continue; + Bad = true; + + // Search for dependencies which are unpacked but aren't configured yet (maybe loops) + for (DepIterator Cur = Start; true; ++Cur) + { + SPtrArray VList = Cur.AllTargets(); + + for (Version **I = VList; *I != 0; ++I) + { + VerIterator Ver(Cache,*I); + PkgIterator DepPkg = Ver.ParentPkg(); + + // Check if the version that is going to be installed will satisfy the dependency + if (Cache[DepPkg].InstallVer != *I) + continue; + + if (List->IsFlag(DepPkg,pkgOrderList::UnPacked)) + { + if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop) + { + // This dependency has already been dealt with by another SmartConfigure on Pkg + Bad = false; + break; + } + /* Check for a loop to prevent one forming + If A depends on B and B depends on A, SmartConfigure will + just hop between them if this is not checked. Dont remove the + loop flag after finishing however as loop is already set. + This means that there is another SmartConfigure call for this + package and it will remove the loop flag */ + if (PkgLoop == false) + List->Flag(Pkg,pkgOrderList::Loop); + if (SmartConfigure(DepPkg, Depth + 1) == true) + { + Bad = false; + if (List->IsFlag(DepPkg,pkgOrderList::Loop) == false) + Changed = true; + } + if (PkgLoop == false) + List->RmFlag(Pkg,pkgOrderList::Loop); + // If SmartConfigure was succesfull, Bad is false, so break + if (Bad == false) + break; + } + else if (List->IsFlag(DepPkg,pkgOrderList::Configured)) + { + Bad = false; + break; + } + } + if (Cur == End || Bad == false) + break; + } + + + if (Bad == true && Changed == false && Debug == true) + std::clog << OutputInDepth(Depth) << "Could not satisfy " << *D << std::endl; } + if (i++ > max_loops) + return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (2) for %s, aborting", Pkg.FullName().c_str()); + } while (Changed == true); + + if (Bad) { + if (Debug) + _error->Warning(_("Could not configure '%s'. "),Pkg.FullName().c_str()); + return false; } - Depth--; + if (PkgLoop) return true; + + static std::string const conf = _config->Find("PackageManager::Configure","all"); + static bool const ConfigurePkgs = (conf == "all" || conf == "smart"); + + if (List->IsFlag(Pkg,pkgOrderList::Configured)) + return _error->Error("Internal configure error on '%s'.", Pkg.FullName().c_str()); + + if (ConfigurePkgs == true && Configure(Pkg) == false) + return false; + + List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); + + if ((Cache[Pkg].InstVerIter(Cache)->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same) + for (PkgIterator P = Pkg.Group().PackageList(); + P.end() == false; P = Pkg.Group().NextPkg(P)) + { + if (Pkg == P || List->IsFlag(P,pkgOrderList::Configured) == true || + List->IsFlag(P,pkgOrderList::UnPacked) == false || + Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer && + (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)) + continue; + SmartConfigure(P, (Depth +1)); + } + + // Sanity Check + if (List->IsFlag(Pkg,pkgOrderList::Configured) == false) + return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str()); + return true; } /*}}}*/ @@ -369,6 +545,34 @@ 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 || + (Pkg->Flags & pkgCache::Flag::Important) != 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 || + (D.ParentPkg()->Flags & pkgCache::Flag::Important) != 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.FullName().c_str()); + } bool Res = SmartRemove(Pkg); if (Cache[Pkg].Delete() == false) @@ -386,108 +590,338 @@ bool pkgPackageManager::SmartRemove(PkgIterator Pkg) return true; List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States); - return Remove(Pkg); + + return Remove(Pkg,(Cache[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge); } /*}}}*/ // PM::SmartUnPack - Install helper /*{{{*/ // --------------------------------------------------------------------- -/* This performs the task of handling pre-depends. */ +/* This puts the system in a state where it can Unpack Pkg, if Pkg is already + unpacked, or when it has been unpacked, if Immediate==true it configures it. */ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg) { - // Check if it is already unpacked - if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && - Cache[Pkg].Keep() == true) - { - 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 true; + return SmartUnPack(Pkg, true, 0); +} +bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth) +{ + bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop); + + if (Debug) { + clog << OutputInDepth(Depth) << "SmartUnPack " << Pkg.FullName(); + VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer); + if (Pkg.CurrentVer() == 0) + clog << " (install version " << InstallVer.VerStr() << ")"; + else + clog << " (replace version " << Pkg.CurrentVer().VerStr() << " with " << InstallVer.VerStr() << ")"; + if (PkgLoop) + clog << " (Only Perform PreUnpack Checks)"; + clog << endl; } - /* 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++) + VerIterator const instVer = Cache[Pkg].InstVerIter(Cache); + + /* PreUnpack Checks: This loop checks and attempts to rectify and problems that would prevent the package being unpacked. + It addresses: PreDepends, Conflicts, Obsoletes and Breaks (DpkgBreaks). Any resolutions that do not require it should + avoid configuration (calling SmartUnpack with Immediate=true), this is because when unpacking some packages with + complex dependency structures, trying to configure some packages while breaking the loops can complicate things . + This will be either dealt with if the package is configured as a dependency of Pkg (if and when Pkg is configured), + or by the ConfigureAll call at the end of the for loop in OrderInstall. */ + bool Changed = false; + const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 5000); + unsigned int i = 0; + do { - if (D->Type == pkgCache::Dep::PreDepends) + Changed = false; + for (DepIterator D = instVer.DependsList(); D.end() == false; ) { - // Look for possible ok targets. - Version **VList = D.AllTargets(); - bool Bad = true; - for (Version **I = VList; *I != 0 && Bad == true; I++) - { - VerIterator Ver(Cache,*I); - PkgIterator Pkg = Ver.ParentPkg(); - - // See if the current version is ok - if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true && - Pkg.State() == PkgIterator::NeedsNothing) + // Compute a single dependency element (glob or) + pkgCache::DepIterator Start, End; + D.GlobOr(Start,End); + + if (End->Type == pkgCache::Dep::PreDepends) + { + bool Bad = true; + if (Debug) + clog << OutputInDepth(Depth) << "PreDepends order for " << Pkg.FullName() << std::endl; + + // Look for easy targets: packages that are already okay + for (DepIterator Cur = Start; Bad == true; ++Cur) { - Bad = false; - continue; + SPtrArray VList = Cur.AllTargets(); + for (Version **I = VList; *I != 0; ++I) + { + VerIterator Ver(Cache,*I); + PkgIterator Pkg = Ver.ParentPkg(); + + // See if the current version is ok + if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true && + Pkg.State() == PkgIterator::NeedsNothing) + { + Bad = false; + if (Debug) + clog << OutputInDepth(Depth) << "Found ok package " << Pkg.FullName() << endl; + break; + } + } + if (Cur == End) + break; } + + // Look for something that could be configured. + for (DepIterator Cur = Start; Bad == true && Cur.end() == false; ++Cur) + { + SPtrArray VList = Cur.AllTargets(); + for (Version **I = VList; *I != 0; ++I) + { + VerIterator Ver(Cache,*I); + PkgIterator Pkg = Ver.ParentPkg(); + + // Not the install version + if (Cache[Pkg].InstallVer != *I || + (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)) + continue; + + if (List->IsFlag(Pkg,pkgOrderList::Configured)) + { + Bad = false; + break; + } + + // check if it needs unpack or if if configure is enough + if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false) + { + if (Debug) + clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << Pkg.FullName() << endl; + // SmartUnpack with the ImmediateFlag to ensure its really ready + if (SmartUnPack(Pkg, true, Depth + 1) == true) + { + Bad = false; + if (List->IsFlag(Pkg,pkgOrderList::Loop) == false) + Changed = true; + break; + } + } + else + { + if (Debug) + clog << OutputInDepth(Depth) << "Trying to SmartConfigure " << Pkg.FullName() << endl; + if (SmartConfigure(Pkg, Depth + 1) == true) + { + Bad = false; + if (List->IsFlag(Pkg,pkgOrderList::Loop) == false) + Changed = true; + break; + } + } + } + } + + if (Bad == true) + { + if (Start == End) + return _error->Error("Couldn't configure pre-depend %s for %s, " + "probably a dependency cycle.", + End.TargetPkg().FullName().c_str(),Pkg.FullName().c_str()); + } + else + continue; } - - // Look for something that could be configured. - for (Version **I = VList; *I != 0 && Bad == true; I++) + else if (End->Type == pkgCache::Dep::Conflicts || + End->Type == pkgCache::Dep::Obsoletes) { - VerIterator Ver(Cache,*I); - PkgIterator Pkg = Ver.ParentPkg(); - - // Not the install version - if (Cache[Pkg].InstallVer != *I || - (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)) - continue; + /* Look for conflicts. Two packages that are both in the install + state cannot conflict so we don't check.. */ + SPtrArray VList = End.AllTargets(); + for (Version **I = VList; *I != 0; I++) + { + VerIterator Ver(Cache,*I); + PkgIterator ConflictPkg = Ver.ParentPkg(); + VerIterator InstallVer(Cache,Cache[ConflictPkg].InstallVer); - Bad = !SmartConfigure(Pkg); + // See if the current version is conflicting + if (ConflictPkg.CurrentVer() == Ver && List->IsNow(ConflictPkg)) + { + clog << OutputInDepth(Depth) << Pkg.FullName() << " conflicts with " << ConflictPkg.FullName() << endl; + /* If a loop is not present or has not yet been detected, attempt to unpack packages + to resolve this conflict. If there is a loop present, remove packages to resolve this conflict */ + if (List->IsFlag(ConflictPkg,pkgOrderList::Loop) == false) + { + if (Cache[ConflictPkg].Keep() == 0 && Cache[ConflictPkg].InstallVer != 0) + { + if (Debug) + clog << OutputInDepth(Depth) << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.FullName() << " to prevent conflict" << endl; + List->Flag(Pkg,pkgOrderList::Loop); + if (SmartUnPack(ConflictPkg,false, Depth + 1) == true) + if (List->IsFlag(ConflictPkg,pkgOrderList::Loop) == false) + Changed = true; + // Remove loop to allow it to be used later if needed + List->RmFlag(Pkg,pkgOrderList::Loop); + } + else if (EarlyRemove(ConflictPkg) == false) + return _error->Error("Internal Error, Could not early remove %s (1)",ConflictPkg.FullName().c_str()); + } + else if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == false) + { + if (Debug) + clog << OutputInDepth(Depth) << "Because of conficts knot, removing " << ConflictPkg.FullName() << " to conflict violation" << endl; + if (EarlyRemove(ConflictPkg) == false) + return _error->Error("Internal Error, Could not early remove %s (2)",ConflictPkg.FullName().c_str()); + } + } + } } - - delete [] VList; - - if (Bad == true) - return _error->Error("Internal Error, Couldn't configure a pre-depend"); - - continue; - } - - if (D->Type == pkgCache::Dep::Conflicts) - { - /* Look for conflicts. Two packages that are both in the install - state cannot conflict so we don't check.. */ - Version **VList = D.AllTargets(); - for (Version **I = VList; *I != 0; I++) + else if (End->Type == pkgCache::Dep::DpkgBreaks) { - VerIterator Ver(Cache,*I); - PkgIterator Pkg = Ver.ParentPkg(); - - // See if the current version is conflicting - if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true) + SPtrArray VList = End.AllTargets(); + for (Version **I = VList; *I != 0; ++I) { - if (EarlyRemove(Pkg) == false) - return _error->Error("Internal Error, Could not early remove %s",Pkg.Name()); + VerIterator Ver(Cache,*I); + PkgIterator BrokenPkg = Ver.ParentPkg(); + if (BrokenPkg.CurrentVer() != Ver) + { + if (Debug) + std::clog << OutputInDepth(Depth) << " Ignore not-installed version " << Ver.VerStr() << " of " << Pkg.FullName() << " for " << End << std::endl; + continue; + } + + // Check if it needs to be unpacked + if (List->IsFlag(BrokenPkg,pkgOrderList::InList) && Cache[BrokenPkg].Delete() == false && + List->IsNow(BrokenPkg)) + { + if (List->IsFlag(BrokenPkg,pkgOrderList::Loop) && PkgLoop) + { + // This dependency has already been dealt with by another SmartUnPack on Pkg + break; + } + else + { + // Found a break, so see if we can unpack the package to avoid it + // but do not set loop if another SmartUnPack already deals with it + // Also, avoid it if the package we would unpack pre-depends on this one + VerIterator InstallVer(Cache,Cache[BrokenPkg].InstallVer); + bool circle = false; + for (pkgCache::DepIterator D = InstallVer.DependsList(); D.end() == false; ++D) + { + if (D->Type != pkgCache::Dep::PreDepends) + continue; + SPtrArray VL = D.AllTargets(); + for (Version **I = VL; *I != 0; ++I) + { + VerIterator V(Cache,*I); + PkgIterator P = V.ParentPkg(); + // we are checking for installation as an easy 'protection' against or-groups and (unchosen) providers + if (P != Pkg || (P.CurrentVer() != V && Cache[P].InstallVer != V)) + continue; + circle = true; + break; + } + if (circle == true) + break; + } + if (circle == true) + { + if (Debug) + clog << OutputInDepth(Depth) << " Avoiding " << End << " avoided as " << BrokenPkg.FullName() << " has a pre-depends on " << Pkg.FullName() << std::endl; + continue; + } + else + { + if (Debug) + { + clog << OutputInDepth(Depth) << " Unpacking " << BrokenPkg.FullName() << " to avoid " << End; + if (PkgLoop == true) + clog << " (Looping)"; + clog << std::endl; + } + if (PkgLoop == false) + List->Flag(Pkg,pkgOrderList::Loop); + if (SmartUnPack(BrokenPkg, false, Depth + 1) == true) + { + if (List->IsFlag(BrokenPkg,pkgOrderList::Loop) == false) + Changed = true; + } + if (PkgLoop == false) + List->RmFlag(Pkg,pkgOrderList::Loop); + } + } + } + // Check if a package needs to be removed + else if (Cache[BrokenPkg].Delete() == true && List->IsFlag(BrokenPkg,pkgOrderList::Configured) == false) + { + if (Debug) + clog << OutputInDepth(Depth) << " Removing " << BrokenPkg.FullName() << " to avoid " << End << endl; + SmartRemove(BrokenPkg); + } } } - delete [] VList; } - } - - // Check for reverse conflicts. - CheckRConflicts(Pkg,Pkg.RevDependsList(), - Cache[Pkg].InstVerIter(Cache).VerStr()); - for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList(); - P.end() == false; P++) - CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion()); + if (i++ > max_loops) + return _error->Error("Internal error: APT::pkgPackageManager::MaxLoopCount reached in SmartConfigure for %s, aborting", Pkg.FullName().c_str()); + } while (Changed == true); - if (Install(Pkg,FileNames[Pkg->ID]) == false) - return false; + // Check for reverse conflicts. + if (CheckRConflicts(Pkg,Pkg.RevDependsList(), + instVer.VerStr()) == false) + return false; + for (PrvIterator P = instVer.ProvidesList(); + P.end() == false; ++P) + if (Pkg->Group != P.OwnerPkg()->Group) + CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion()); + + if (PkgLoop) + return true; + List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States); - - // 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"); + + if (Immediate == true && (instVer->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same) + { + /* Do lockstep M-A:same unpacking in two phases: + First unpack all installed architectures, then the not installed. + This way we avoid that M-A: enabled packages are installed before + their older non-M-A enabled packages are replaced by newer versions */ + bool const installed = Pkg->CurrentVer != 0; + if (installed == true && + (instVer != Pkg.CurrentVer() || + ((Cache[Pkg].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)) && + Install(Pkg,FileNames[Pkg->ID]) == false) + return false; + for (PkgIterator P = Pkg.Group().PackageList(); + P.end() == false; P = Pkg.Group().NextPkg(P)) + { + if (P->CurrentVer == 0 || P == Pkg || List->IsFlag(P,pkgOrderList::UnPacked) == true || + Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer && + (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)) + continue; + if (SmartUnPack(P, false, Depth + 1) == false) + return false; + } + if (installed == false && Install(Pkg,FileNames[Pkg->ID]) == false) + return false; + for (PkgIterator P = Pkg.Group().PackageList(); + P.end() == false; P = Pkg.Group().NextPkg(P)) + { + if (P->CurrentVer != 0 || P == Pkg || List->IsFlag(P,pkgOrderList::UnPacked) == true || + List->IsFlag(P,pkgOrderList::Configured) == true || + Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer && + (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)) + continue; + if (SmartUnPack(P, false, Depth + 1) == false) + return false; + } + } + // packages which are already unpacked don't need to be unpacked again + else if ((instVer != Pkg.CurrentVer() || + ((Cache[Pkg].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)) && + Install(Pkg,FileNames[Pkg->ID]) == false) + return false; + + if (Immediate == true) { + // Perform immedate configuration of the package. + if (SmartConfigure(Pkg, Depth + 1) == false) + _error->Warning(_("Could not perform immediate configuration on '%s'. " + "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),2); + } return true; } @@ -503,9 +937,12 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() Reset(); if (Debug == true) - clog << "Begining to order" << endl; + clog << "Beginning to order" << endl; - if (List->OrderUnpack(FileNames) == false) + bool const ordering = + _config->FindB("PackageManager::UnpackAll",true) ? + List->OrderUnpack(FileNames) : List->OrderCritical(); + if (ordering == false) { _error->Error("Internal ordering error"); return Failed; @@ -515,21 +952,28 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() clog << "Done ordering" << endl; bool DoneSomething = false; - for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I) { PkgIterator Pkg(Cache,*I); - + if (List->IsNow(Pkg) == false) { - if (Debug == true) - clog << "Skipping already done " << Pkg.Name() << endl; + if (!List->IsFlag(Pkg,pkgOrderList::Configured) && !NoImmConfigure) { + if (SmartConfigure(Pkg, 0) == false && Debug) + _error->Warning("Internal Error, Could not configure %s",Pkg.FullName().c_str()); + // FIXME: The above warning message might need changing + } else { + if (Debug == true) + clog << "Skipping already done " << Pkg.FullName() << endl; + } continue; + } - if (Cache[Pkg].Delete() == false && FileNames[Pkg->ID].empty() == true) + if (List->IsMissing(Pkg) == true) { if (Debug == true) - clog << "Sequence completed at" << Pkg.Name() << endl; + clog << "Sequence completed at " << Pkg.FullName() << endl; if (DoneSomething == false) { _error->Error("Internal Error, ordering was unable to handle the media swap"); @@ -539,9 +983,11 @@ 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.FullName().c_str()); return Failed; } @@ -552,39 +998,107 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall() return Failed; } else - if (SmartUnPack(Pkg) == false) + if (SmartUnPack(Pkg,List->IsFlag(Pkg,pkgOrderList::Immediate),0) == false) return Failed; DoneSomething = true; + + if (ImmConfigureAll) { + /* ConfigureAll here to pick up and packages left unconfigured because they were unpacked in the + "PreUnpack Checks" section */ + if (!ConfigureAll()) + return Failed; + } } - + // Final run through the configure phase if (ConfigureAll() == false) return Failed; // Sanity check - for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++) + for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I) { if (List->IsFlag(*I,pkgOrderList::Configured) == false) { _error->Error("Internal error, packages left unconfigured. %s", - PkgIterator(Cache,*I).Name()); + PkgIterator(Cache,*I).FullName().c_str()); return Failed; } - } + } return Completed; +} +// PM::DoInstallPostFork - compat /*{{{*/ +// --------------------------------------------------------------------- + /*}}}*/ +#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13) +pkgPackageManager::OrderResult +pkgPackageManager::DoInstallPostFork(int statusFd) +{ + APT::Progress::PackageManager *progress = new + APT::Progress::PackageManagerProgressFd(statusFd); + pkgPackageManager::OrderResult res = DoInstallPostFork(progress); + delete progress; + return res; } /*}}}*/ +// PM::DoInstallPostFork - Does install part that happens after the fork /*{{{*/ +// --------------------------------------------------------------------- +pkgPackageManager::OrderResult +pkgPackageManager::DoInstallPostFork(APT::Progress::PackageManager *progress) +{ + bool goResult = Go(progress); + if(goResult == false) + return Failed; + + return Res; +}; +#else +pkgPackageManager::OrderResult +pkgPackageManager::DoInstallPostFork(int statusFd) +{ + bool goResult = Go(statusFd); + if(goResult == false) + return Failed; + + return Res; +} +#endif + /*}}}*/ +// PM::DoInstall - Does the installation /*{{{*/ +// --------------------------------------------------------------------- +/* compat */ +#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13) +pkgPackageManager::OrderResult +pkgPackageManager::DoInstall(int statusFd) +{ + APT::Progress::PackageManager *progress = new + APT::Progress::PackageManagerProgressFd(statusFd); + OrderResult res = DoInstall(progress); + delete progress; + return res; + } +#else +pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd) +{ + if(DoInstallPreFork() == Failed) + return Failed; + + return DoInstallPostFork(statusFd); +} +#endif + /*}}}*/ // 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() +#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13) +pkgPackageManager::OrderResult +pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress) { - OrderResult Res = OrderInstall(); - if (Res != Failed) - if (Go() == false) - return Failed; - return Res; + if(DoInstallPreFork() == Failed) + return Failed; + + return DoInstallPostFork(progress); } - /*}}}*/ +#endif + /*}}}*/