* added a missing OpProgress::Done() in depCache::Init(), removed the show-virtual...

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

diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index cd3597ef758db478d1ed308d20274d4b7375f202..240ad4da2d0e3b9c8f90f51253609d208aaf0aa9 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 1.12 1998/12/14 08:07:29 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.


@@ -12,25 +12,24 @@
 #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/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 <apti18n.h>    

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

-pkgDepCache::pkgDepCache(MMap &Map,OpProgress &Prog) :
-             pkgCache(Map), PkgState(0), DepState(0)
-{
-   if (_error->PendingError() == false)
-      Init(&Prog);
-}
-pkgDepCache::pkgDepCache(MMap &Map) :
-             pkgCache(Map), PkgState(0), DepState(0)
+pkgDepCache::pkgDepCache(pkgCache *pCache,Policy *Plcy) :
+                Cache(pCache), 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                                 /*{{{*/


@@ -40,6 +39,7 @@ 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.             /*{{{*/


@@ -53,12 +53,12 @@ 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


@@ -86,50 +86,16 @@ 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);

+   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)
-   {
-      /* 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;
-      }
-        
-      return VerIterator(*this,0);
-   }
-   else
-      return Pkg.TargetVer(); 
-}
-                                                                       /*}}}*/
-// DepCache::IsImportantDep - True if the dependency is important      /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool pkgDepCache::IsImportantDep(DepIterator Dep)
-{
-   return Dep.IsCritical();
-}
-                                                                       /*}}}*/

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


@@ -144,28 +110,30 @@ 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();


@@ -198,7 +166,7 @@ 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;


@@ -211,31 +179,33 @@ 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;
    }
    


@@ -243,14 +213,14 @@ 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;
    }   
 }


@@ -278,16 +248,24 @@ 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;

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

       return;
    }
    
       return;
    }
    


@@ -315,7 +293,7 @@ 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..


@@ -326,7 +304,7 @@ 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;
    }    
 }


@@ -450,7 +428,7 @@ 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;


@@ -459,7 +437,7 @@ 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;
         }       
       }


@@ -487,9 +465,9 @@ 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());


@@ -502,7 +480,7 @@ 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);


@@ -518,9 +496,10 @@ 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());

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


@@ -533,6 +512,12 @@ 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 */


@@ -570,7 +555,7 @@ 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)


@@ -578,10 +563,14 @@ 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;


@@ -589,7 +578,7 @@ 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.Mode = ModeKeep;
    else
       P.Mode = ModeDelete;


@@ -604,8 +593,12 @@ 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;


@@ -621,6 +614,10 @@ 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)


@@ -651,7 +648,8 @@ 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;
 


@@ -670,24 +668,62 @@ 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);
+        
+        // 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;
+           }
+        }

         
         

-        // Set the autoflag, after MarkInstall because MarkInstall unsets it
-        if (P->CurrentVer == 0)
-           PkgState[P->ID].Flags |= Flag::Auto;
+        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);


@@ -696,13 +732,50 @@ 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. */


@@ -747,3 +820,48 @@ 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();
+}
+                                                                       /*}}}*/