diff options
Diffstat (limited to 'apt-pkg/policy.cc')
| -rw-r--r-- | apt-pkg/policy.cc | 44 |
1 files changed, 41 insertions, 3 deletions
diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc index 3cfc32829..a44bd7efe 100644 --- a/apt-pkg/policy.cc +++ b/apt-pkg/policy.cc @@ -18,7 +18,8 @@ 500 = Default package files 100 = The status file and ButAutomaticUpgrades sources 0 -> 100 = NotAutomatic sources like experimental - -inf -> 0 = Never selected + -inf -> 0 = Never selected + –32768 = Never selected, overrides everything else ##################################################################### */ /*}}}*/ @@ -50,6 +51,8 @@ using namespace std; +static const short NEVER_PIN = std::numeric_limits<short>::min(); + // Policy::Init - Startup and bind to a cache /*{{{*/ // --------------------------------------------------------------------- /* Set the defaults for operation. The default mode with no loaded policy @@ -115,7 +118,7 @@ bool pkgPolicy::InitDefaults() pkgVersionMatch Match(I->Data,I->Type); for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F) { - if (Match.FileMatch(F) == true && Fixed[F->ID] == false) + if (Match.FileMatch(F) == true && (Fixed[F->ID] == false || I->Priority == NEVER_PIN)) { if (I->Priority != 0 && I->Priority > 0) Cur = I->Priority; @@ -162,6 +165,24 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk if (Max < 0) return Pkg.CurrentVer(); + // If the package specific-pin refers to a version that is only available from + // never sources, ignore it. + if (!Pref.end()) + { + bool AllNever = true; + for (pkgCache::VerFileIterator VF = Pref.FileList(); VF.end() == false; ++VF) + { + if ((VF.File()->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource) + continue; + + if (PFPriority[VF.File()->ID] != NEVER_PIN) + AllNever = false; + } + + if (AllNever) + Pref = pkgCache::VerIterator(*Pkg.Cache()); + } + /* Falling through to the default version.. Setting Max to zero effectively excludes everything <= 0 which are the non-automatic priorities.. The status file is given a prio of 100 which will exclude @@ -194,7 +215,12 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk instVer == false) continue; + signed Prio = PFPriority[VF.File()->ID]; + + // A package file pinned to NEVER_PIN can never be a candidate. + if (Prio == NEVER_PIN && instVer == false) + continue; if (Prio > Max) { Pref = Ver; @@ -446,7 +472,19 @@ bool ReadPinFile(pkgPolicy &Plcy,string File) } for (; Word != End && isspace(*Word) != 0; Word++); - short int priority = Tags.FindI("Pin-Priority", 0); + std::string sPriority = Tags.FindS("Pin-Priority"); + short int priority = sPriority == "never" ? NEVER_PIN : Tags.FindI("Pin-Priority", 0); + + if (sPriority == "never" && not Name.empty()) + return _error->Error(_("%s: The special 'Pin-Priority: %s' can only be used for 'Package: *' records"), File.c_str(), "never"); + + // Silently clamp the never pin to never pin + 1 + if (priority == NEVER_PIN && sPriority != "never") + priority = NEVER_PIN + 1; + + if (priority == 0 && Tags.FindS("Pin-Priority") == "never") { + priority = NEVER_PIN; + } if (priority == 0) { _error->Warning(_("No priority (or zero) specified for pin")); |