* added APT::NeverAutoRemove (a list of regexp for package names that should never...

[apt.git] / apt-pkg / depcache.cc

diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 19f30b2c172f0c889f7cfd4a5aec05a163170099..366687382121aad69d04f4de9e20da089d4db955 100644 (file)
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: depcache.cc,v 1.13 1998/12/22 07:58:50 jgg Exp $
+// $Id: depcache.cc,v 1.25 2001/05/27 05:36:04 jgg Exp $

 /* ######################################################################
 
    Dependency Cache - Caches Dependency information.
 /* ######################################################################
 
    Dependency Cache - Caches Dependency information.


@@ -12,26 +12,30 @@
 #pragma implementation "apt-pkg/depcache.h"
 #endif
 #include <apt-pkg/depcache.h>
 #pragma implementation "apt-pkg/depcache.h"
 #endif
 #include <apt-pkg/depcache.h>

-#include <apt-pkg/configuration.h>
-

 #include <apt-pkg/version.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/error.h>

+#include <apt-pkg/sptr.h>
+#include <apt-pkg/algorithms.h>
+
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/tagfile.h>
+
+#include <iostream>
+#include <sstream>    
+#include <apti18n.h>    

                                                                        /*}}}*/
 
 // DepCache::pkgDepCache - Constructors                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */
                                                                        /*}}}*/
 
 // DepCache::pkgDepCache - Constructors                                        /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-pkgDepCache::pkgDepCache(MMap &Map,OpProgress &Prog) :
-             pkgCache(Map), PkgState(0), DepState(0)
+pkgDepCache::pkgDepCache(pkgCache *pCache,Policy *Plcy) :
+                Cache(pCache), PkgState(0), DepState(0)

 {
 {

-   if (_error->PendingError() == false)
-      Init(&Prog);
-}
-pkgDepCache::pkgDepCache(MMap &Map) :
-             pkgCache(Map), PkgState(0), DepState(0)
-{
-   if (_error->PendingError() == false)
-      Init(0);
+   delLocalPolicy = 0;
+   LocalPolicy = Plcy;
+   if (LocalPolicy == 0)
+      delLocalPolicy = LocalPolicy = new Policy;

 }
                                                                        /*}}}*/
 // DepCache::~pkgDepCache - Destructor                                 /*{{{*/
 }
                                                                        /*}}}*/
 // DepCache::~pkgDepCache - Destructor                                 /*{{{*/


@@ -41,6 +45,7 @@ pkgDepCache::~pkgDepCache()
 {
    delete [] PkgState;
    delete [] DepState;
 {
    delete [] PkgState;
    delete [] DepState;

+   delete delLocalPolicy;

 }
                                                                        /*}}}*/
 // DepCache::Init - Generate the initial extra structures.             /*{{{*/
 }
                                                                        /*}}}*/
 // DepCache::Init - Generate the initial extra structures.             /*{{{*/


@@ -54,12 +59,12 @@ bool pkgDepCache::Init(OpProgress *Prog)
    DepState = new unsigned char[Head().DependsCount];
    memset(PkgState,0,sizeof(*PkgState)*Head().PackageCount);
    memset(DepState,0,sizeof(*DepState)*Head().DependsCount); 
    DepState = new unsigned char[Head().DependsCount];
    memset(PkgState,0,sizeof(*PkgState)*Head().PackageCount);
    memset(DepState,0,sizeof(*DepState)*Head().DependsCount); 

-   
+

    if (Prog != 0)
    {
       Prog->OverallProgress(0,2*Head().PackageCount,Head().PackageCount,
    if (Prog != 0)
    {
       Prog->OverallProgress(0,2*Head().PackageCount,Head().PackageCount,

-                           "Building Dependency Tree");
-      Prog->SubProgress(Head().PackageCount,"Candidate Versions");
+                           _("Building dependency tree"));
+      Prog->SubProgress(Head().PackageCount,_("Candidate versions"));

    }
    
    /* Set the current state of everything. In this state all of the
    }
    
    /* Set the current state of everything. In this state all of the


@@ -73,7 +78,7 @@ bool pkgDepCache::Init(OpProgress *Prog)
       // Find the proper cache slot
       StateCache &State = PkgState[I->ID];
       State.iFlags = 0;
       // Find the proper cache slot
       StateCache &State = PkgState[I->ID];
       State.iFlags = 0;

-      
+

       // Figure out the install version
       State.CandidateVer = GetCandidateVer(I);
       State.InstallVer = I.CurrentVer();
       // Figure out the install version
       State.CandidateVer = GetCandidateVer(I);
       State.InstallVer = I.CurrentVer();


@@ -87,72 +92,85 @@ bool pkgDepCache::Init(OpProgress *Prog)
       
       Prog->OverallProgress(Head().PackageCount,2*Head().PackageCount,
                            Head().PackageCount,
       
       Prog->OverallProgress(Head().PackageCount,2*Head().PackageCount,
                            Head().PackageCount,

-                           "Building Dependency Tree");
-      Prog->SubProgress(Head().PackageCount,"Dependency Generation");
+                           _("Building dependency tree"));
+      Prog->SubProgress(Head().PackageCount,_("Dependency generation"));

    }
    
    Update(Prog);
    }
    
    Update(Prog);

+
+   if(Prog != 0)
+      Prog->Done();

    
    return true;
 } 
                                                                        /*}}}*/
    
    return true;
 } 
                                                                        /*}}}*/

-// DepCache::GetCandidateVer - Returns the Candidate install version   /*{{{*/
-// ---------------------------------------------------------------------
-/* The default just returns the target version if it exists or the
-   highest version. */
-pkgDepCache::VerIterator pkgDepCache::GetCandidateVer(PkgIterator Pkg)
-{
-   // Try to use an explicit target
-   if (Pkg->TargetVer == 0)
-   {
-      string DistHack = _config->Find("to");

 
 

-      /* If disthack is set then we look for a dist by that name to install
-         from */
-      if (DistHack.empty() == false)
-      {
-        for (VerIterator I = Pkg.VersionList(); I.end() == false; I++)
-        {
-           for (VerFileIterator J = I.FileList(); J.end() == false; J++)
-              if ((J.File()->Flags & Flag::NotSource) == 0 &&
-                  (J.File()->Flags & Flag::NotAutomatic) == 0 &&
-                  J.File().Archive() == DistHack)
-                 return I;         
-        }
-        
-        // Hmm, target is current if there is no alternative.
-        if (Pkg->CurrentVer != 0)
-           return Pkg.CurrentVer();
-      }
-      else
-      {
-        /* Not source/not automatic versions cannot be a candidate version 
-           unless they are already installed */
-        for (VerIterator I = Pkg.VersionList(); I.end() == false; I++)
-        {
-           if (Pkg.CurrentVer() == I)
-              return I;
-           for (VerFileIterator J = I.FileList(); J.end() == false; J++)
-              if ((J.File()->Flags & Flag::NotSource) == 0 &&
-                  (J.File()->Flags & Flag::NotAutomatic) == 0)
-                 return I;
+bool pkgDepCache::readStateFile(OpProgress *Prog)
+{
+   FileFd state_file;
+   string state = _config->FindDir("Dir::State") + "pkgstates";
+   if(FileExists(state)) {
+      state_file.Open(state, FileFd::ReadOnly);
+      int file_size = state_file.Size();
+      if(Prog != NULL)
+        Prog->OverallProgress(0, file_size, 1, 
+                              _("Reading state information"));
+
+      pkgTagFile tagfile(&state_file);
+      pkgTagSection section;
+      int amt=0;
+      while(tagfile.Step(section)) {
+        string pkgname = section.FindS("Package");
+        pkgCache::PkgIterator pkg=Cache->FindPkg(pkgname);
+        // Silently ignore unknown packages and packages with no actual
+        // version.
+        if(!pkg.end() && !pkg.VersionList().end()) {
+           short reason = section.FindI("Install-Reason", 0);
+           if(reason > 0)
+              PkgState[pkg->ID].Flags  |= pkgCache::Flag::Auto;
+           if(_config->FindB("Debug::pkgAutoRemove",false))
+              std::cout << "Install-Reason for: " << pkgname 
+                        << " is " << reason << std::endl;
+           amt+=section.size();
+           if(Prog != NULL)
+              Prog->OverallProgress(amt, file_size, 1, 
+                                    _("Reading state information"));

         }
         }

+        if(Prog != NULL)
+           Prog->OverallProgress(file_size, file_size, 1, 
+                                 _("Reading state information"));

       }
       }

-      
-      return VerIterator(*this,0);

    }
    }

-   else
-      return Pkg.TargetVer(); 
+
+   return true;

 }
 }

-                                                                       /*}}}*/
-// DepCache::IsImportantDep - True if the dependency is important      /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool pkgDepCache::IsImportantDep(DepIterator Dep)
+
+bool pkgDepCache::writeStateFile(OpProgress *prog)

 {
 {

-   return Dep.IsCritical();
+   FileFd StateFile;
+   string state = _config->FindDir("Dir::State") + "pkgstates";
+
+   if(_config->FindB("Debug::pkgAutoRemove",false))
+      std::clog << "pkgDepCache::writeStateFile()" << std::endl;
+
+   if(!StateFile.Open(state, FileFd::WriteEmpty))
+      return _error->Error(_("Failed to write StateFile %s"),
+                          state.c_str());
+
+   std::ostringstream ostr;
+   for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end();pkg++) {
+
+      if(PkgState[pkg->ID].Flags & pkgCache::Flag::Auto) {
+        if(_config->FindB("Debug::pkgAutoRemove",false))
+           std::clog << "AutoInstal: " << pkg.Name() << std::endl;
+        ostr.str(string(""));
+        ostr << "Package: " << pkg.Name() 
+             << "\nInstall-Reason: 1\n\n";
+        StateFile.Write(ostr.str().c_str(), ostr.str().size());
+      }
+   }
+   return true;

 }
 }

-                                                                       /*}}}*/

 
 // DepCache::CheckDep - Checks a single dependency                     /*{{{*/
 // ---------------------------------------------------------------------
 
 // DepCache::CheckDep - Checks a single dependency                     /*{{{*/
 // ---------------------------------------------------------------------


@@ -167,28 +185,30 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
    /* Check simple depends. A depends -should- never self match but 
       we allow it anyhow because dpkg does. Technically it is a packaging
       bug. Conflicts may never self match */
    /* Check simple depends. A depends -should- never self match but 
       we allow it anyhow because dpkg does. Technically it is a packaging
       bug. Conflicts may never self match */

-   if (Dep.TargetPkg() != Dep.ParentPkg() || Dep->Type != Dep::Conflicts)
+   if (Dep.TargetPkg() != Dep.ParentPkg() || 
+       (Dep->Type != Dep::Conflicts && Dep->Type != Dep::Obsoletes))

    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package
       if (Type == NowVersion && Pkg->CurrentVer != 0)
    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package
       if (Type == NowVersion && Pkg->CurrentVer != 0)

-        if (pkgCheckDep(Dep.TargetVer(),
-                        Pkg.CurrentVer().VerStr(),Dep->CompareOp) == true)
+        if (VS().CheckDep(Pkg.CurrentVer().VerStr(),Dep->CompareOp,
+                                Dep.TargetVer()) == true)

            return true;
       
       if (Type == InstallVersion && PkgState[Pkg->ID].InstallVer != 0)
            return true;
       
       if (Type == InstallVersion && PkgState[Pkg->ID].InstallVer != 0)

-        if (pkgCheckDep(Dep.TargetVer(),
-                        PkgState[Pkg->ID].InstVerIter(*this).VerStr(),
-                        Dep->CompareOp) == true)
+        if (VS().CheckDep(PkgState[Pkg->ID].InstVerIter(*this).VerStr(),
+                                Dep->CompareOp,Dep.TargetVer()) == true)

            return true;
       
       if (Type == CandidateVersion && PkgState[Pkg->ID].CandidateVer != 0)
            return true;
       
       if (Type == CandidateVersion && PkgState[Pkg->ID].CandidateVer != 0)

-        if (pkgCheckDep(Dep.TargetVer(),
-                        PkgState[Pkg->ID].CandidateVerIter(*this).VerStr(),
-                        Dep->CompareOp) == true)
+        if (VS().CheckDep(PkgState[Pkg->ID].CandidateVerIter(*this).VerStr(),
+                                Dep->CompareOp,Dep.TargetVer()) == true)

            return true;
    }
    
            return true;
    }
    

+   if (Dep->Type == Dep::Obsoletes)
+      return false;
+   

    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();
    PkgIterator Pkg = Dep.ParentPkg();
    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();
    PkgIterator Pkg = Dep.ParentPkg();


@@ -221,7 +241,7 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
       }
       
       // Compare the versions.
       }
       
       // Compare the versions.

-      if (pkgCheckDep(Dep.TargetVer(),P.ProvideVersion(),Dep->CompareOp) == true)
+      if (VS().CheckDep(P.ProvideVersion(),Dep->CompareOp,Dep.TargetVer()) == true)

       {
         Res = P.OwnerPkg();
         return true;
       {
         Res = P.OwnerPkg();
         return true;


@@ -234,31 +254,33 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
 // DepCache::AddSizes - Add the packages sizes to the counters         /*{{{*/
 // ---------------------------------------------------------------------
 /* Call with Mult = -1 to preform the inverse opration */
 // DepCache::AddSizes - Add the packages sizes to the counters         /*{{{*/
 // ---------------------------------------------------------------------
 /* Call with Mult = -1 to preform the inverse opration */

-void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult)
+void pkgDepCache::AddSizes(const PkgIterator &Pkg,signed long Mult)

 {
    StateCache &P = PkgState[Pkg->ID];
    
 {
    StateCache &P = PkgState[Pkg->ID];
    

-   if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure)
-   {
-      iUsrSize += Mult*P.InstVerIter(*this)->InstalledSize;
+   if (Pkg->VersionList == 0)
+      return;
+   
+   if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && 
+       P.Keep() == true)

       return;
       return;

-   }

    
    // Compute the size data
    if (P.NewInstall() == true)
    {
    
    // Compute the size data
    if (P.NewInstall() == true)
    {

-      iUsrSize += Mult*P.InstVerIter(*this)->InstalledSize;
-      iDownloadSize += Mult*P.InstVerIter(*this)->Size;
+      iUsrSize += (signed)(Mult*P.InstVerIter(*this)->InstalledSize);
+      iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size);

       return;
    }
    
    // Upgrading
       return;
    }
    
    // Upgrading

-   if (Pkg->CurrentVer != 0 && P.InstallVer != (Version *)Pkg.CurrentVer() &&
-       P.InstallVer != 0)
+   if (Pkg->CurrentVer != 0 && 
+       (P.InstallVer != (Version *)Pkg.CurrentVer() || 
+       (P.iFlags & ReInstall) == ReInstall) && P.InstallVer != 0)

    {
    {

-      iUsrSize += Mult*((signed)P.InstVerIter(*this)->InstalledSize - 
-                       (signed)Pkg.CurrentVer()->InstalledSize);
-      iDownloadSize += Mult*P.InstVerIter(*this)->Size;
+      iUsrSize += (signed)(Mult*((signed)P.InstVerIter(*this)->InstalledSize - 
+                       (signed)Pkg.CurrentVer()->InstalledSize));
+      iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size);

       return;
    }
    
       return;
    }
    


@@ -266,14 +288,14 @@ void pkgDepCache::AddSizes(const PkgIterator &Pkg,long Mult)
    if (Pkg.State() == pkgCache::PkgIterator::NeedsUnpack &&
        P.Delete() == false)
    {
    if (Pkg.State() == pkgCache::PkgIterator::NeedsUnpack &&
        P.Delete() == false)
    {

-      iDownloadSize += Mult*P.InstVerIter(*this)->Size;
+      iDownloadSize += (signed)(Mult*P.InstVerIter(*this)->Size);

       return;
    }
    
    // Removing
    if (Pkg->CurrentVer != 0 && P.InstallVer == 0)
    {
       return;
    }
    
    // Removing
    if (Pkg->CurrentVer != 0 && P.InstallVer == 0)
    {

-      iUsrSize -= Mult*Pkg.CurrentVer()->InstalledSize;
+      iUsrSize -= (signed)(Mult*Pkg.CurrentVer()->InstalledSize);

       return;
    }   
 }
       return;
    }   
 }


@@ -301,18 +323,24 @@ void pkgDepCache::AddStates(const PkgIterator &Pkg,int Add)
    // Not installed
    if (Pkg->CurrentVer == 0)
    {
    // Not installed
    if (Pkg->CurrentVer == 0)
    {

+      if (State.Mode == ModeDelete && 
+         (State.iFlags | Purge) == Purge && Pkg.Purge() == false)
+        iDelCount += Add;
+      

       if (State.Mode == ModeInstall)
         iInstCount += Add;
       return;
    }
    
    // Installed, no upgrade
       if (State.Mode == ModeInstall)
         iInstCount += Add;
       return;
    }
    
    // Installed, no upgrade

-   if (State.Upgradable() == false)
-   {
+   if (State.Status == 0)
+   {    

       if (State.Mode == ModeDelete)
         iDelCount += Add;
       if (State.Mode == ModeDelete)
         iDelCount += Add;

-      if (State.Mode == ModeInstall)
-        iInstCount += Add;
+      else
+        if ((State.iFlags & ReInstall) == ReInstall)
+           iInstCount += Add;
+      

       return;
    }
    
       return;
    }
    


@@ -340,7 +368,7 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */

-      if (D->Type == Dep::Conflicts)
+      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)

         State = ~State;
       
       // Add to the group if we are within an or..
         State = ~State;
       
       // Add to the group if we are within an or..


@@ -351,7 +379,7 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
         Group = 0;
       
       // Invert for Conflicts
         Group = 0;
       
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts)
+      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)

         State = ~State;
    }    
 }
         State = ~State;
    }    
 }


@@ -475,7 +503,7 @@ void pkgDepCache::Update(OpProgress *Prog)
         {
            // Build the dependency state.
            unsigned char &State = DepState[D->ID];
         {
            // Build the dependency state.
            unsigned char &State = DepState[D->ID];

-           State = DependencyState(D);;
+           State = DependencyState(D);

 
            // Add to the group if we are within an or..
            Group |= State;
 
            // Add to the group if we are within an or..
            Group |= State;


@@ -484,7 +512,7 @@ void pkgDepCache::Update(OpProgress *Prog)
               Group = 0;
 
            // Invert for Conflicts
               Group = 0;
 
            // Invert for Conflicts

-           if (D->Type == Dep::Conflicts)
+           if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)

               State = ~State;
         }       
       }
               State = ~State;
         }       
       }


@@ -495,6 +523,8 @@ void pkgDepCache::Update(OpProgress *Prog)
       AddStates(I);
    }
 
       AddStates(I);
    }
 

+   readStateFile(Prog);
+

    if (Prog != 0)      
       Prog->Progress(Done);
 }
    if (Prog != 0)      
       Prog->Progress(Done);
 }


@@ -512,9 +542,9 @@ void pkgDepCache::Update(DepIterator D)
       State = DependencyState(D);
     
       // Invert for Conflicts
       State = DependencyState(D);
     
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts)
+      if (D->Type == Dep::Conflicts || D->Type == Dep::Obsoletes)

         State = ~State;
         State = ~State;

-      
+

       RemoveStates(D.ParentPkg());
       BuildGroupOrs(D.ParentVer());
       UpdateVerState(D.ParentPkg());
       RemoveStates(D.ParentPkg());
       BuildGroupOrs(D.ParentVer());
       UpdateVerState(D.ParentPkg());


@@ -527,7 +557,7 @@ void pkgDepCache::Update(DepIterator D)
 /* This is called whenever the state of a package changes. It updates
    all cached dependencies related to this package. */
 void pkgDepCache::Update(PkgIterator const &Pkg)
 /* This is called whenever the state of a package changes. It updates
    all cached dependencies related to this package. */
 void pkgDepCache::Update(PkgIterator const &Pkg)

-{
+{   

    // Recompute the dep of the package
    RemoveStates(Pkg);
    UpdateVerState(Pkg);
    // Recompute the dep of the package
    RemoveStates(Pkg);
    UpdateVerState(Pkg);


@@ -543,9 +573,10 @@ void pkgDepCache::Update(PkgIterator const &Pkg)
         Update(P.ParentPkg().RevDependsList());
 
    // Update the provides map for the candidate ver
         Update(P.ParentPkg().RevDependsList());
 
    // Update the provides map for the candidate ver

-   for (PrvIterator P = PkgState[Pkg->ID].CandidateVerIter(*this).ProvidesList();
-       P.end() != true; P++)
-      Update(P.ParentPkg().RevDependsList());
+   if (PkgState[Pkg->ID].CandidateVer != 0)
+      for (PrvIterator P = PkgState[Pkg->ID].CandidateVerIter(*this).ProvidesList();
+          P.end() != true; P++)
+        Update(P.ParentPkg().RevDependsList());

 }
 
                                                                        /*}}}*/
 }
 
                                                                        /*}}}*/


@@ -558,6 +589,12 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg,bool Soft)
    // Simplifies other routines.
    if (Pkg.end() == true)
       return;
    // Simplifies other routines.
    if (Pkg.end() == true)
       return;

+
+   /* Reject an attempt to keep a non-source broken installed package, those
+      must be upgraded */
+   if (Pkg.State() == PkgIterator::NeedsUnpack && 
+       Pkg.CurrentVer().Downloadable() == false)
+      return;

    
    /* We changed the soft state all the time so the UI is a bit nicer
       to use */
    
    /* We changed the soft state all the time so the UI is a bit nicer
       to use */


@@ -595,7 +632,7 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg,bool Soft)
 // DepCache::MarkDelete - Put the package in the delete state          /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DepCache::MarkDelete - Put the package in the delete state          /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDepCache::MarkDelete(PkgIterator const &Pkg)
+void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge)

 {
    // Simplifies other routines.
    if (Pkg.end() == true)
 {
    // Simplifies other routines.
    if (Pkg.end() == true)


@@ -603,10 +640,14 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg)
 
    // Check that it is not already marked for delete
    StateCache &P = PkgState[Pkg->ID];
 
    // Check that it is not already marked for delete
    StateCache &P = PkgState[Pkg->ID];

-   P.iFlags &= ~AutoKept;
-   if (P.Mode == ModeDelete || P.InstallVer == 0)
+   P.iFlags &= ~(AutoKept | Purge);
+   if (rPurge == true)
+      P.iFlags |= Purge;
+   
+   if ((P.Mode == ModeDelete || P.InstallVer == 0) && 
+       (Pkg.Purge() == true || rPurge == false))

       return;
       return;

-
+   

    // We dont even try to delete virtual packages..
    if (Pkg->VersionList == 0)
       return;
    // We dont even try to delete virtual packages..
    if (Pkg->VersionList == 0)
       return;


@@ -614,12 +655,13 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg)
    RemoveSizes(Pkg);
    RemoveStates(Pkg);
    
    RemoveSizes(Pkg);
    RemoveStates(Pkg);
    

-   if (Pkg->CurrentVer == 0)
+   if (Pkg->CurrentVer == 0 && (Pkg.Purge() == true || rPurge == false))

       P.Mode = ModeKeep;
    else
       P.Mode = ModeDelete;
    P.InstallVer = 0;
       P.Mode = ModeKeep;
    else
       P.Mode = ModeDelete;
    P.InstallVer = 0;

-   P.Flags &= Flag::Auto;
+   // This was not inverted before, but I think it should be
+   P.Flags &= ~Flag::Auto;

 
    AddStates(Pkg);   
    Update(Pkg);
 
    AddStates(Pkg);   
    Update(Pkg);


@@ -629,8 +671,12 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg)
 // DepCache::MarkInstall - Put the package in the install state                /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DepCache::MarkInstall - Put the package in the install state                /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst)
-{   
+void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
+                             unsigned long Depth)
+{
+   if (Depth > 100)
+      return;
+   

    // Simplifies other routines.
    if (Pkg.end() == true)
       return;
    // Simplifies other routines.
    if (Pkg.end() == true)
       return;


@@ -646,6 +692,10 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst)
         MarkKeep(Pkg);
       return;
    }
         MarkKeep(Pkg);
       return;
    }

+
+   // See if there is even any possible instalation candidate
+   if (P.CandidateVer == 0)
+      return;

    
    // We dont even try to install virtual packages..
    if (Pkg->VersionList == 0)
    
    // We dont even try to install virtual packages..
    if (Pkg->VersionList == 0)


@@ -676,7 +726,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst)
       // Grok or groups
       DepIterator Start = Dep;
       bool Result = true;
       // Grok or groups
       DepIterator Start = Dep;
       bool Result = true;

-      for (bool LastOR = true; Dep.end() == false && LastOR == true; Dep++)
+      unsigned Ors = 0;
+      for (bool LastOR = true; Dep.end() == false && LastOR == true; Dep++,Ors++)

       {
         LastOR = (Dep->CompareOp & Dep::Or) == Dep::Or;
 
       {
         LastOR = (Dep->CompareOp & Dep::Or) == Dep::Or;
 


@@ -695,24 +746,62 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst)
         continue;
       if (Pkg->CurrentVer != 0 && Start.IsCritical() == false)
         continue;
         continue;
       if (Pkg->CurrentVer != 0 && Start.IsCritical() == false)
         continue;

-
-      // Now we have to take action...
-      PkgIterator P = Start.SmartTargetPkg();
+      
+      /* If we are in an or group locate the first or that can 
+         succeed. We have already cached this.. */
+      for (; Ors > 1 && (DepState[Start->ID] & DepCVer) != DepCVer; Ors--)
+        Start++;
+
+      /* This bit is for processing the possibilty of an install/upgrade
+         fixing the problem */
+      SPtrArray<Version *> List = Start.AllTargets();

       if ((DepState[Start->ID] & DepCVer) == DepCVer)
       {
       if ((DepState[Start->ID] & DepCVer) == DepCVer)
       {

-        MarkInstall(P,true);
+        // Right, find the best version to install..
+        Version **Cur = List;
+        PkgIterator P = Start.TargetPkg();
+        PkgIterator InstPkg(*Cache,0);

         
         

-        // Set the autoflag, after MarkInstall because MarkInstall unsets it
-        if (P->CurrentVer == 0)
-           PkgState[P->ID].Flags |= Flag::Auto;
+        // See if there are direct matches (at the start of the list)
+        for (; *Cur != 0 && (*Cur)->ParentPkg == P.Index(); Cur++)
+        {
+           PkgIterator Pkg(*Cache,Cache->PkgP + (*Cur)->ParentPkg);
+           if (PkgState[Pkg->ID].CandidateVer != *Cur)
+              continue;
+           InstPkg = Pkg;
+           break;
+        }

 
 

+        // Select the highest priority providing package
+        if (InstPkg.end() == true)
+        {
+           pkgPrioSortList(*Cache,Cur);
+           for (; *Cur != 0; Cur++)
+           {
+              PkgIterator Pkg(*Cache,Cache->PkgP + (*Cur)->ParentPkg);
+              if (PkgState[Pkg->ID].CandidateVer != *Cur)
+                 continue;
+              InstPkg = Pkg;
+              break;
+           }
+        }
+        
+        if (InstPkg.end() == false)
+        {
+           MarkInstall(InstPkg,true,Depth + 1);
+
+           // Set the autoflag, after MarkInstall because MarkInstall unsets it
+           if (P->CurrentVer == 0)
+              PkgState[InstPkg->ID].Flags |= Flag::Auto;
+        }
+        

         continue;
       }
       
         continue;
       }
       

-      // For conflicts we just de-install the package and mark as auto
-      if (Start->Type == Dep::Conflicts)
+      /* For conflicts we just de-install the package and mark as auto,
+         Conflicts may not have or groups */
+      if (Start->Type == Dep::Conflicts || Start->Type == Dep::Obsoletes)

       {
       {

-        Version **List = Start.AllTargets();

         for (Version **I = List; *I != 0; I++)
         {
            VerIterator Ver(*this,*I);
         for (Version **I = List; *I != 0; I++)
         {
            VerIterator Ver(*this,*I);


@@ -721,13 +810,50 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst)
            MarkDelete(Pkg);
            PkgState[Pkg->ID].Flags |= Flag::Auto;
         }
            MarkDelete(Pkg);
            PkgState[Pkg->ID].Flags |= Flag::Auto;
         }

-        delete [] List;

         continue;
       }      
    }
 }
                                                                        /*}}}*/
         continue;
       }      
    }
 }
                                                                        /*}}}*/

+// DepCache::SetReInstall - Set the reinstallation flag                        /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To)
+{
+   RemoveSizes(Pkg);
+   RemoveStates(Pkg);
+   
+   StateCache &P = PkgState[Pkg->ID];
+   if (To == true)
+      P.iFlags |= ReInstall;
+   else
+      P.iFlags &= ~ReInstall;
+   
+   AddStates(Pkg);
+   AddSizes(Pkg);
+}
+                                                                       /*}}}*/
+// DepCache::SetCandidateVersion - Change the candidate version                /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDepCache::SetCandidateVersion(VerIterator TargetVer)
+{
+   pkgCache::PkgIterator Pkg = TargetVer.ParentPkg();
+   StateCache &P = PkgState[Pkg->ID];
+   
+   RemoveSizes(Pkg);
+   RemoveStates(Pkg);

 
 

+   if (P.CandidateVer == P.InstallVer)
+      P.InstallVer = (Version *)TargetVer;
+   P.CandidateVer = (Version *)TargetVer;
+   P.Update(Pkg,*this);
+   
+   AddStates(Pkg);
+   Update(Pkg);
+   AddSizes(Pkg);
+}
+                                                                       /*}}}*/

 // StateCache::Update - Compute the various static display things      /*{{{*/
 // ---------------------------------------------------------------------
 /* This is called whenever the Candidate version changes. */
 // StateCache::Update - Compute the various static display things      /*{{{*/
 // ---------------------------------------------------------------------
 /* This is called whenever the Candidate version changes. */


@@ -772,3 +898,48 @@ const char *pkgDepCache::StateCache::StripEpoch(const char *Ver)
    return Ver;
 }
                                                                        /*}}}*/
    return Ver;
 }
                                                                        /*}}}*/

+
+// Policy::GetCandidateVer - Returns the Candidate install version     /*{{{*/
+// ---------------------------------------------------------------------
+/* The default just returns the highest available version that is not
+   a source and automatic. */
+pkgCache::VerIterator pkgDepCache::Policy::GetCandidateVer(PkgIterator Pkg)
+{
+   /* Not source/not automatic versions cannot be a candidate version 
+      unless they are already installed */
+   VerIterator Last(*(pkgCache *)this,0);
+   
+   for (VerIterator I = Pkg.VersionList(); I.end() == false; I++)
+   {
+      if (Pkg.CurrentVer() == I)
+        return I;
+      
+      for (VerFileIterator J = I.FileList(); J.end() == false; J++)
+      {
+        if ((J.File()->Flags & Flag::NotSource) != 0)
+           continue;
+
+        /* Stash the highest version of a not-automatic source, we use it
+           if there is nothing better */
+        if ((J.File()->Flags & Flag::NotAutomatic) != 0)
+        {
+           if (Last.end() == true)
+              Last = I;
+           continue;
+        }
+
+        return I;
+      }
+   }
+   
+   return Last;
+}
+                                                                       /*}}}*/
+// Policy::IsImportantDep - True if the dependency is important                /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDepCache::Policy::IsImportantDep(DepIterator Dep)
+{
+   return Dep.IsCritical();
+}
+                                                                       /*}}}*/