merge with debian-sid branch and 0.8.14.1 release

[ntk/apt.git] / apt-pkg / policy.cc

diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index a328639..3d6ec1c 100644 (file)
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -16,7 +16,7 @@
    990         = Config file override package files
    989         = Start for preference auto-priorities
    500         = Default package files
-   100         = The status file
+   100         = The status file and ButAutomaticUpgrades sources
    0 -> 100    = NotAutomatic sources like experimental
    -inf -> 0   = Never selected   
    
@@ -45,6 +45,8 @@ using namespace std;
    file matches the V0 policy engine. */
 pkgPolicy::pkgPolicy(pkgCache *Owner) : Pins(0), PFPriority(0), Cache(Owner)
 {
+   if (Owner == 0 || &(Owner->Head()) == 0)
+      return;
    PFPriority = new signed short[Owner->Head().PackageFileCount];
    Pins = new Pin[Owner->Head().PackageCount];
 
@@ -70,9 +72,10 @@ bool pkgPolicy::InitDefaults()
       PFPriority[I->ID] = 500;
       if ((I->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource)
         PFPriority[I->ID] = 100;
-      else
-        if ((I->Flags & pkgCache::Flag::NotAutomatic) == pkgCache::Flag::NotAutomatic)
-           PFPriority[I->ID] = 1;
+      else if ((I->Flags & pkgCache::Flag::ButAutomaticUpgrades) == pkgCache::Flag::ButAutomaticUpgrades)
+        PFPriority[I->ID] = 100;
+      else if ((I->Flags & pkgCache::Flag::NotAutomatic) == pkgCache::Flag::NotAutomatic)
+        PFPriority[I->ID] = 1;
    }
 
    // Apply the defaults..
@@ -149,13 +152,6 @@ pkgCache::VerIterator pkgPolicy::GetCandidateVer(pkgCache::PkgIterator const &Pk
    {
       /* 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++)
       {
@@ -220,6 +216,21 @@ void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
       P->Data = Data;
       return;
    }
+   
+   // Allow pinning by wildcards
+   // TODO: Maybe we should always prefer specific pins over non-
+   // specific ones.
+   if (Name.find("*") != string::npos || Name.find("[") != string::npos
+       || Name.find("?") != string::npos || Name[0] == '/') {
+         pkgVersionMatch match(Data, Type);
+         for (pkgCache::PkgIterator P = Cache->PkgBegin();
+              P != Cache->PkgEnd(); P++) {
+                 if (match.ExpressionMatches(Name, P.Name())) {
+                       CreatePin(Type, P.Name(), Data, Priority);
+                 }  
+      }
+      return;
+   }
 
    // Get a spot to put the pin
    pkgCache::GrpIterator Grp = Cache->FindGrp(Name);
@@ -327,7 +338,7 @@ bool ReadPinFile(pkgPolicy &Plcy,string File)
    if (File.empty() == true)
       File = _config->FindFile("Dir::Etc::Preferences");
 
-   if (FileExists(File) == false)
+   if (RealFileExists(File) == false)
       return true;
    
    FileFd Fd(File,FileFd::ReadOnly);