From c753eec1d192a56e7f4ba1b07ae766b740185a3f Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Sat, 3 Apr 2010 17:07:30 +0200 Subject: * apt-pkg/depcache.cc: - "reinstall" the correct version for a killed pseudo package --- apt-pkg/depcache.cc | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'apt-pkg/depcache.cc') diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc index 75f69ee11..0f07de2fe 100644 --- a/apt-pkg/depcache.cc +++ b/apt-pkg/depcache.cc @@ -855,13 +855,16 @@ void pkgDepCache::Update(OpProgress *Prog) if (P.end() == true) continue; for (VerIterator V = P.VersionList(); V.end() != true; ++V) { - // FIXME: String comparison isn't a save indicator! - if (strcmp(allV.VerStr(),V.VerStr()) != 0) + if (allV->Hash != V->Hash || + strcmp(allV.VerStr(),V.VerStr()) != 0) continue; unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy); if ((CurDepState & DepInstMin) != DepInstMin) break; // we found the correct version, but it is broken. Better try another arch or later again + RemoveSizes(P); + RemoveStates(P); P->CurrentVer = V.Index(); + PkgState[P->ID].InstallVer = V; AddStates(P); Update(P); AddSizes(P); -- cgit v1.2.3 From edde664d0cc5fe46f572696c605832700c553b9e Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Wed, 28 Apr 2010 16:25:05 +0200 Subject: rewrite the pseudo package reinstaller to be more intelligent in his package choices The previous implementation tried to install the package for arch A and if this fails B, C and so on. This results in wrong architecture choices for packages which depend on other pseudo packages, so he will now try to install the dependencies first before trying the package itself and only if this fails he tries the next architecture. --- apt-pkg/depcache.cc | 120 +++++++++++++++++++++++++++++++++++----------------- 1 file changed, 82 insertions(+), 38 deletions(-) (limited to 'apt-pkg/depcache.cc') diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc index 0f07de2fe..a63deee3a 100644 --- a/apt-pkg/depcache.cc +++ b/apt-pkg/depcache.cc @@ -841,45 +841,15 @@ void pkgDepCache::Update(OpProgress *Prog) if (installed == false) recheck.insert(G.Index()); } - std::vector Archs = APT::Configuration::getArchitectures(); - bool checkChanged = false; - do { - for(std::set::const_iterator g = recheck.begin(); - g != recheck.end(); ++g) { - GrpIterator G = GrpIterator(*Cache, Cache->GrpP + *g); - VerIterator allV = G.FindPkg("all").CurrentVer(); - for (std::vector::const_iterator a = Archs.begin(); - a != Archs.end(); ++a) - { - PkgIterator P = G.FindPkg(*a); - if (P.end() == true) continue; - for (VerIterator V = P.VersionList(); V.end() != true; ++V) - { - if (allV->Hash != V->Hash || - strcmp(allV.VerStr(),V.VerStr()) != 0) - continue; - unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy); - if ((CurDepState & DepInstMin) != DepInstMin) - break; // we found the correct version, but it is broken. Better try another arch or later again - RemoveSizes(P); - RemoveStates(P); - P->CurrentVer = V.Index(); - PkgState[P->ID].InstallVer = V; - AddStates(P); - Update(P); - AddSizes(P); - checkChanged = true; - break; - } - } - recheck.erase(g); - } - } while (checkChanged == true && recheck.empty() == false); - if (_config->FindB("Debug::MultiArchKiller", false) == true) - for(std::set::const_iterator g = recheck.begin(); - g != recheck.end(); ++g) - std::cout << "No pseudo package for »" << GrpIterator(*Cache, Cache->GrpP + *g).Name() << "« installed" << std::endl; + while (recheck.empty() != true) + { + std::set::const_iterator g = recheck.begin(); + unsigned long const G = *g; + recheck.erase(g); + if (unlikely(ReInstallPseudoForGroup(G, recheck) == false)) + _error->Warning(_("Internal error, group »%s« has no installable pseudo package"), GrpIterator(*Cache, Cache->GrpP + *g).Name()); + } } if (Prog != 0) @@ -888,6 +858,80 @@ void pkgDepCache::Update(OpProgress *Prog) readStateFile(Prog); } /*}}}*/ +// DepCache::ReInstallPseudoForGroup - MultiArch helper for Update() /*{{{*/ +// --------------------------------------------------------------------- +/* RemovePseudoInstalledPkg() is very successful. It even kills packages + to an amount that no pseudo package is left, but we need a pseudo package + for upgrading senarios so we need to reinstall one pseudopackage which + doesn't break everything. Thankfully we can't have architecture depending + negative dependencies so this problem is already eliminated */ +bool pkgDepCache::ReInstallPseudoForGroup(pkgCache::PkgIterator const &P, std::set &recheck) +{ + if (P->CurrentVer != 0) + return true; + // recursive call for packages which provide this package + for (pkgCache::PrvIterator Prv = P.ProvidesList(); Prv.end() != true; ++Prv) + ReInstallPseudoForGroup(Prv.OwnerPkg(), recheck); + // check if we actually need to look at this group + unsigned long const G = P->Group; + std::set::const_iterator Pi = recheck.find(G); + if (Pi == recheck.end()) + return true; + recheck.erase(Pi); // remove here, so we can't fall into an endless loop + if (unlikely(ReInstallPseudoForGroup(G, recheck) == false)) + { + recheck.insert(G); + return false; + } + return true; +} +bool pkgDepCache::ReInstallPseudoForGroup(unsigned long const &G, std::set &recheck) +{ + std::vector static const Archs = APT::Configuration::getArchitectures(); + pkgCache::GrpIterator Grp(*Cache, Cache->GrpP + G); + if (unlikely(Grp.end() == true)) + return false; + for (std::vector::const_iterator a = Archs.begin(); + a != Archs.end(); ++a) + { + pkgCache::PkgIterator P = Grp.FindPkg(*a); + if (P.end() == true) + continue; + pkgCache::VerIterator allV = Grp.FindPkg("all").CurrentVer(); + for (VerIterator V = P.VersionList(); V.end() != true; ++V) + { + // search for the same version as the all package + if (allV->Hash != V->Hash || strcmp(allV.VerStr(),V.VerStr()) != 0) + continue; + unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy); + // If it is broken, try to install dependencies first before retry + if ((CurDepState & DepInstMin) != DepInstMin) + { + for (pkgCache::DepIterator D = V.DependsList(); D.end() != true; ++D) + { + if (D->Type != pkgCache::Dep::PreDepends && D->Type != pkgCache::Dep::Depends) + continue; + ReInstallPseudoForGroup(D.TargetPkg(), recheck); + } + unsigned char const CurDepState = VersionState(V.DependsList(),DepInstall,DepInstMin,DepInstPolicy); + // if package ist still broken… try another arch + if ((CurDepState & DepInstMin) != DepInstMin) + break; + } + // dependencies satisfied: reinstall the package + RemoveSizes(P); + RemoveStates(P); + P->CurrentVer = V.Index(); + PkgState[P->ID].InstallVer = V; + AddStates(P); + Update(P); + AddSizes(P); + return true; + } + } + return false; +} + /*}}}*/ // DepCache::Update - Update the deps list of a package /*{{{*/ // --------------------------------------------------------------------- /* This is a helper for update that only does the dep portion of the scan. -- cgit v1.2.3