diff options
Diffstat (limited to 'apt-pkg/policy.cc')
| -rw-r--r-- | apt-pkg/policy.cc | 91 |
1 files changed, 59 insertions, 32 deletions
diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc index a24ab7452..a3286391b 100644 --- a/apt-pkg/policy.cc +++ b/apt-pkg/policy.cc @@ -115,12 +115,16 @@ bool pkgPolicy::InitDefaults() // --------------------------------------------------------------------- /* Evaluate the package pins and the default list to deteremine what the best package is. */ -pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg) +pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pkg) { // Look for a package pin and evaluate it. signed Max = GetPriority(Pkg); pkgCache::VerIterator Pref = GetMatch(Pkg); + // Alternatives in case we can not find our package pin (Bug#512318). + signed MaxAlt = 0; + pkgCache::VerIterator PrefAlt; + // no package = no candidate version if (Pkg.end() == true) return Pref; @@ -143,6 +147,16 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg) */ for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; Ver++) { + /* Lets see if this version is the installed version */ + bool instVer = (Pkg.CurrentVer() == Ver); + if (Ver.Pseudo() == true && instVer == false) + { + pkgCache::PkgIterator const allPkg = Ver.ParentPkg().Group().FindPkg("all"); + if (allPkg->CurrentVer != 0 && allPkg.CurrentVer()->Hash == Ver->Hash && + strcmp(allPkg.CurVersion(), Ver.VerStr()) == 0) + instVer = true; + } + for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; VF++) { /* If this is the status file, and the current version is not the @@ -151,18 +165,23 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg) out bogus entries that may be due to config-file states, or other. */ if ((VF.File()->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource && - Pkg.CurrentVer() != Ver) + instVer == false) continue; - + signed Prio = PFPriority[VF.File()->ID]; if (Prio > Max) { Pref = Ver; Max = Prio; + } + if (Prio > MaxAlt) + { + PrefAlt = Ver; + MaxAlt = Prio; } } - if (Pkg.CurrentVer() == Ver && Max < 1000) + if (instVer == true && Max < 1000) { /* Elevate our current selection (or the status file itself) to the Pseudo-status priority. */ @@ -175,6 +194,12 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg) break; } } + // If we do not find our candidate, use the one with the highest pin. + // This means that if there is a version available with pin > 0; there + // will always be a candidate (Closes: #512318) + if (!Pref.IsGood() && MaxAlt > 0) + Pref = PrefAlt; + return Pref; } /*}}}*/ @@ -187,49 +212,51 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator Pkg) void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name, string Data,signed short Priority) { - Pin *P = 0; - if (Name.empty() == true) - P = &*Defaults.insert(Defaults.end(),PkgPin()); - else { - // Get a spot to put the pin - pkgCache::PkgIterator Pkg = Cache->FindPkg(Name); - if (Pkg.end() == true) + Pin *P = &*Defaults.insert(Defaults.end(),PkgPin()); + P->Type = Type; + P->Priority = Priority; + P->Data = Data; + return; + } + + // Get a spot to put the pin + pkgCache::GrpIterator Grp = Cache->FindGrp(Name); + for (pkgCache::PkgIterator Pkg = Grp.FindPkg("any"); + Pkg.end() != true; Pkg = Grp.NextPkg(Pkg)) + { + Pin *P = 0; + if (Pkg.end() == false) + P = Pins + Pkg->ID; + else { // Check the unmatched table - for (vector<PkgPin>::iterator I = Unmatched.begin(); + for (vector<PkgPin>::iterator I = Unmatched.begin(); I != Unmatched.end() && P == 0; I++) if (I->Pkg == Name) P = &*I; - + if (P == 0) - P = &*Unmatched.insert(Unmatched.end(),PkgPin()); + P = &*Unmatched.insert(Unmatched.end(),PkgPin()); } - else - { - P = Pins + Pkg->ID; - } + P->Type = Type; + P->Priority = Priority; + P->Data = Data; } - - // Set.. - P->Type = Type; - P->Priority = Priority; - P->Data = Data; } /*}}}*/ // Policy::GetMatch - Get the matching version for a package pin /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgCache::VerIterator pkgPolicy::GetMatch(pkgCache::PkgIterator Pkg) +pkgCache::VerIterator pkgPolicy::GetMatch(pkgCache::PkgIterator const &Pkg) { const Pin &PPkg = Pins[Pkg->ID]; - if (PPkg.Type != pkgVersionMatch::None) - { - pkgVersionMatch Match(PPkg.Data,PPkg.Type); - return Match.Find(Pkg); - } - return pkgCache::VerIterator(*Pkg.Cache()); + if (PPkg.Type == pkgVersionMatch::None) + return pkgCache::VerIterator(*Pkg.Cache()); + + pkgVersionMatch Match(PPkg.Data,PPkg.Type); + return Match.Find(Pkg); } /*}}}*/ // Policy::GetPriority - Get the priority of the package pin /*{{{*/ @@ -274,9 +301,9 @@ bool ReadPinDir(pkgPolicy &Plcy,string Dir) if (Dir.empty() == true) Dir = _config->FindDir("Dir::Etc::PreferencesParts"); - if (FileExists(Dir) == false) + if (DirectoryExists(Dir) == false) { - _error->WarningE("FileExists",_("Unable to read %s"),Dir.c_str()); + _error->WarningE("DirectoryExists",_("Unable to read %s"),Dir.c_str()); return true; } |