* apt-inst/deb/debfile.h:

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

diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 31410e2a69202596cd09021219e3fc5a589d6865..2656e9b42e745f3ca5a8b3fa982aee5ccce4f93f 100644 (file)
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -8,28 +8,35 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include<config.h>
+

 #include <apt-pkg/depcache.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/versionmatch.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
 #include <apt-pkg/algorithms.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/versionmatch.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
 #include <apt-pkg/algorithms.h>

-

 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/pkgsystem.h>
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/pkgsystem.h>
 #include <apt-pkg/tagfile.h>

+#include <apt-pkg/progress.h>
+#include <apt-pkg/cacheset.h>

 
 

+#include <algorithm>

 #include <iostream>
 #include <iostream>

-#include <sstream>    
+#include <sstream>

 #include <set>
 
 #include <sys/stat.h>
 
 #include <set>
 
 #include <sys/stat.h>
 

-#include <apti18n.h>    
+#include <apti18n.h>

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

+
+using std::string;
+

 // helper for Install-Recommends-Sections and Never-MarkAuto-Sections  /*{{{*/
 static bool 
 ConfigValueInSubTree(const char* SubTree, const char *needle)
 // helper for Install-Recommends-Sections and Never-MarkAuto-Sections  /*{{{*/
 static bool 
 ConfigValueInSubTree(const char* SubTree, const char *needle)


@@ -70,7 +77,7 @@ void pkgDepCache::ActionGroup::release()
            cache.MarkAndSweep();
        }
 
            cache.MarkAndSweep();
        }
 

-      released = false;
+      released = true;

     }
 }
 
     }
 }
 


@@ -129,7 +136,7 @@ bool pkgDepCache::Init(OpProgress *Prog)
    /* Set the current state of everything. In this state all of the
       packages are kept exactly as is. See AllUpgrade */
    int Done = 0;
    /* Set the current state of everything. In this state all of the
       packages are kept exactly as is. See AllUpgrade */
    int Done = 0;

-   for (PkgIterator I = PkgBegin(); I.end() != true; I++,Done++)
+   for (PkgIterator I = PkgBegin(); I.end() != true; ++I, ++Done)

    {
       if (Prog != 0 && Done%20 == 0)
         Prog->Progress(Done);
    {
       if (Prog != 0 && Done%20 == 0)
         Prog->Progress(Done);


@@ -169,14 +176,14 @@ bool pkgDepCache::readStateFile(OpProgress *Prog)                 /*{{{*/
    string const state = _config->FindFile("Dir::State::extended_states");
    if(RealFileExists(state)) {
       state_file.Open(state, FileFd::ReadOnly);
    string const state = _config->FindFile("Dir::State::extended_states");
    if(RealFileExists(state)) {
       state_file.Open(state, FileFd::ReadOnly);

-      int const file_size = state_file.Size();
+      off_t const file_size = state_file.Size();

       if(Prog != NULL)
         Prog->OverallProgress(0, file_size, 1, 
                               _("Reading state information"));
 
       pkgTagFile tagfile(&state_file);
       pkgTagSection section;
       if(Prog != NULL)
         Prog->OverallProgress(0, file_size, 1, 
                               _("Reading state information"));
 
       pkgTagFile tagfile(&state_file);
       pkgTagSection section;

-      int amt = 0;
+      off_t amt = 0;

       bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
       while(tagfile.Step(section)) {
         string const pkgname = section.FindS("Package");
       bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
       while(tagfile.Step(section)) {
         string const pkgname = section.FindS("Package");


@@ -292,7 +299,7 @@ bool pkgDepCache::writeStateFile(OpProgress *prog, bool InstalledOnly)      /*{{{*/
    
    // then write the ones we have not seen yet
    std::ostringstream ostr;
    
    // then write the ones we have not seen yet
    std::ostringstream ostr;

-   for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); pkg++) {
+   for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); ++pkg) {

       StateCache const &P = PkgState[pkg->ID];
       if(P.Flags & Flag::Auto) {
         if (pkgs_seen.find(pkg.FullName()) != pkgs_seen.end()) {
       StateCache const &P = PkgState[pkg->ID];
       if(P.Flags & Flag::Auto) {
         if (pkgs_seen.find(pkg.FullName()) != pkgs_seen.end()) {


@@ -339,8 +346,7 @@ 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 && Dep->Type != Dep::DpkgBreaks && Dep->Type != Dep::Obsoletes))
+   if (Dep.TargetPkg() != Dep.ParentPkg() || Dep.IsNegative() == false)

    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package
    {
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package


@@ -365,15 +371,11 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
    
    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();
    
    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();

-   PkgIterator Pkg = Dep.ParentPkg();
-   for (; P.end() != true; P++)
+   for (; P.end() != true; ++P)

    {
    {

-      /* Provides may never be applied against the same package (or group)
-         if it is a conflicts. See the comment above. */
-      if (P.OwnerPkg()->Group == Pkg->Group &&
-         (Dep->Type == Dep::Conflicts || Dep->Type == Dep::DpkgBreaks))
+      if (Dep.IsIgnorable(P) == true)

         continue;
         continue;

-      
+

       // Check if the provides is a hit
       if (Type == NowVersion)
       {
       // Check if the provides is a hit
       if (Type == NowVersion)
       {


@@ -408,60 +410,8 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
                                                                        /*}}}*/
 // DepCache::AddSizes - Add the packages sizes to the counters         /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // DepCache::AddSizes - Add the packages sizes to the counters         /*{{{*/
 // ---------------------------------------------------------------------

-/* Call with Mult = -1 to preform the inverse opration
-   The Mult increases the complexity of the calulations here and is unused -
-   or do we really have a usecase for removing the size of a package two
-   times? So let us replace it with a simple bool and be done with it… */
-__deprecated void pkgDepCache::AddSizes(const PkgIterator &Pkg,signed long Mult)
-{
-   StateCache &P = PkgState[Pkg->ID];
-   
-   if (Pkg->VersionList == 0)
-      return;
-   
-   if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && 
-       P.Keep() == true)
-      return;
-   
-   // Compute the size data
-   if (P.NewInstall() == true)
-   {
-      iUsrSize += (signed long long)(Mult*P.InstVerIter(*this)->InstalledSize);
-      iDownloadSize += (signed long long)(Mult*P.InstVerIter(*this)->Size);
-      return;
-   }
-   
-   // Upgrading
-   if (Pkg->CurrentVer != 0 && 
-       (P.InstallVer != (Version *)Pkg.CurrentVer() || 
-       (P.iFlags & ReInstall) == ReInstall) && P.InstallVer != 0)
-   {
-      iUsrSize += (signed long long)(Mult*((signed long long)P.InstVerIter(*this)->InstalledSize - 
-                       (signed long long)Pkg.CurrentVer()->InstalledSize));
-      iDownloadSize += (signed long long)(Mult*P.InstVerIter(*this)->Size);
-      return;
-   }
-   
-   // Reinstall
-   if (Pkg.State() == pkgCache::PkgIterator::NeedsUnpack &&
-       P.Delete() == false)
-   {
-      iDownloadSize += (signed long long)(Mult*P.InstVerIter(*this)->Size);
-      return;
-   }
-   
-   // Removing
-   if (Pkg->CurrentVer != 0 && P.InstallVer == 0)
-   {
-      iUsrSize -= (signed long long)(Mult*Pkg.CurrentVer()->InstalledSize);
-      return;
-   }   
-}
-                                                                       /*}}}*/
-// DepCache::AddSizes - Add the packages sizes to the counters         /*{{{*/
-// ---------------------------------------------------------------------

 /* Call with Inverse = true to preform the inverse opration */
 /* Call with Inverse = true to preform the inverse opration */

-void pkgDepCache::AddSizes(const PkgIterator &Pkg, bool const &Inverse)
+void pkgDepCache::AddSizes(const PkgIterator &Pkg, bool const Inverse)

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


@@ -532,8 +482,9 @@ void pkgDepCache::AddSizes(const PkgIterator &Pkg, bool const &Inverse)
    calld Remove/Add itself. Remember, dependencies can be circular so
    while processing a dep for Pkg it is possible that Add/Remove
    will be called on Pkg */
    calld Remove/Add itself. Remember, dependencies can be circular so
    while processing a dep for Pkg it is possible that Add/Remove
    will be called on Pkg */

-void pkgDepCache::AddStates(const PkgIterator &Pkg,int Add)
+void pkgDepCache::AddStates(const PkgIterator &Pkg, bool const Invert)

 {
 {

+   signed char const Add = (Invert == false) ? 1 : -1;

    StateCache &State = PkgState[Pkg->ID];
    
    // The Package is broken (either minimal dep or policy dep)
    StateCache &State = PkgState[Pkg->ID];
    
    // The Package is broken (either minimal dep or policy dep)


@@ -549,8 +500,8 @@ 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)
+      if (State.Mode == ModeDelete &&
+         (State.iFlags & Purge) == Purge && Pkg.Purge() == false)

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


@@ -587,16 +538,14 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
 {
    unsigned char Group = 0;
    
 {
    unsigned char Group = 0;
    

-   for (DepIterator D = V.DependsList(); D.end() != true; D++)
+   for (DepIterator D = V.DependsList(); D.end() != true; ++D)

    {
       // Build the dependency state.
       unsigned char &State = DepState[D->ID];
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */
    {
       // Build the dependency state.
       unsigned char &State = DepState[D->ID];
 
       /* Invert for Conflicts. We have to do this twice to get the
          right sense for a conflicts group */

-      if (D->Type == Dep::Conflicts ||
-         D->Type == Dep::DpkgBreaks ||
-         D->Type == Dep::Obsoletes)
+      if (D.IsNegative() == true)

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


@@ -607,9 +556,7 @@ void pkgDepCache::BuildGroupOrs(VerIterator const &V)
         Group = 0;
       
       // Invert for Conflicts
         Group = 0;
       
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts ||
-         D->Type == Dep::DpkgBreaks ||
-         D->Type == Dep::Obsoletes)
+      if (D.IsNegative() == true)

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


@@ -631,7 +578,7 @@ unsigned char pkgDepCache::VersionState(DepIterator D,unsigned char Check,
       // Compute a single dependency element (glob or)
       DepIterator Start = D;
       unsigned char State = 0;
       // Compute a single dependency element (glob or)
       DepIterator Start = D;
       unsigned char State = 0;

-      for (bool LastOR = true; D.end() == false && LastOR == true; D++)
+      for (bool LastOR = true; D.end() == false && LastOR == true; ++D)

       {
         State |= DepState[D->ID];
         LastOR = (D->CompareOp & Dep::Or) == Dep::Or;
       {
         State |= DepState[D->ID];
         LastOR = (D->CompareOp & Dep::Or) == Dep::Or;


@@ -721,15 +668,15 @@ void pkgDepCache::Update(OpProgress *Prog)
 
    // Perform the depends pass
    int Done = 0;
 
    // Perform the depends pass
    int Done = 0;

-   for (PkgIterator I = PkgBegin(); I.end() != true; I++,Done++)
+   for (PkgIterator I = PkgBegin(); I.end() != true; ++I, ++Done)

    {
       if (Prog != 0 && Done%20 == 0)
         Prog->Progress(Done);
    {
       if (Prog != 0 && Done%20 == 0)
         Prog->Progress(Done);

-      for (VerIterator V = I.VersionList(); V.end() != true; V++)
+      for (VerIterator V = I.VersionList(); V.end() != true; ++V)

       {
         unsigned char Group = 0;
 
       {
         unsigned char Group = 0;
 

-        for (DepIterator D = V.DependsList(); D.end() != true; D++)
+        for (DepIterator D = V.DependsList(); D.end() != true; ++D)

         {
            // Build the dependency state.
            unsigned char &State = DepState[D->ID];
         {
            // Build the dependency state.
            unsigned char &State = DepState[D->ID];


@@ -742,9 +689,7 @@ void pkgDepCache::Update(OpProgress *Prog)
               Group = 0;
 
            // Invert for Conflicts
               Group = 0;
 
            // Invert for Conflicts

-           if (D->Type == Dep::Conflicts ||
-               D->Type == Dep::DpkgBreaks ||
-               D->Type == Dep::Obsoletes)
+           if (D.IsNegative() == true)

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


@@ -768,15 +713,13 @@ void pkgDepCache::Update(OpProgress *Prog)
 void pkgDepCache::Update(DepIterator D)
 {
    // Update the reverse deps
 void pkgDepCache::Update(DepIterator D)
 {
    // Update the reverse deps

-   for (;D.end() != true; D++)
+   for (;D.end() != true; ++D)

    {      
       unsigned char &State = DepState[D->ID];
       State = DependencyState(D);
     
       // Invert for Conflicts
    {      
       unsigned char &State = DepState[D->ID];
       State = DependencyState(D);
     
       // Invert for Conflicts

-      if (D->Type == Dep::Conflicts ||
-         D->Type == Dep::DpkgBreaks ||
-         D->Type == Dep::Obsoletes)
+      if (D.IsNegative() == true)

         State = ~State;
 
       RemoveStates(D.ParentPkg());
         State = ~State;
 
       RemoveStates(D.ParentPkg());


@@ -803,30 +746,30 @@ void pkgDepCache::Update(PkgIterator const &Pkg)
    // Update the provides map for the current ver
    if (Pkg->CurrentVer != 0)
       for (PrvIterator P = Pkg.CurrentVer().ProvidesList(); 
    // Update the provides map for the current ver
    if (Pkg->CurrentVer != 0)
       for (PrvIterator P = Pkg.CurrentVer().ProvidesList(); 

-          P.end() != true; P++)
+          P.end() != true; ++P)

         Update(P.ParentPkg().RevDependsList());
 
    // Update the provides map for the candidate ver
    if (PkgState[Pkg->ID].CandidateVer != 0)
       for (PrvIterator P = PkgState[Pkg->ID].CandidateVerIter(*this).ProvidesList();
         Update(P.ParentPkg().RevDependsList());
 
    // Update the provides map for the candidate ver
    if (PkgState[Pkg->ID].CandidateVer != 0)
       for (PrvIterator P = PkgState[Pkg->ID].CandidateVerIter(*this).ProvidesList();

-          P.end() != true; P++)
+          P.end() != true; ++P)

         Update(P.ParentPkg().RevDependsList());
 }
                                                                        /*}}}*/
 // DepCache::MarkKeep - Put the package in the keep state              /*{{{*/
 // ---------------------------------------------------------------------
 /* */
         Update(P.ParentPkg().RevDependsList());
 }
                                                                        /*}}}*/
 // DepCache::MarkKeep - Put the package in the keep state              /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser,
+bool pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser,

                            unsigned long Depth)
 {
    if (IsModeChangeOk(ModeKeep, Pkg, Depth, FromUser) == false)
                            unsigned long Depth)
 {
    if (IsModeChangeOk(ModeKeep, Pkg, Depth, FromUser) == false)

-      return;
+      return false;

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

 
    /* 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 */


@@ -834,7 +777,7 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser,
 
    // Check that it is not already kept
    if (P.Mode == ModeKeep)
 
    // Check that it is not already kept
    if (P.Mode == ModeKeep)

-      return;
+      return true;

 
    if (Soft == true)
       P.iFlags |= AutoKept;
 
    if (Soft == true)
       P.iFlags |= AutoKept;


@@ -867,31 +810,31 @@ void pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser,
       P.InstallVer = Pkg.CurrentVer();
 
    AddStates(Pkg);
       P.InstallVer = Pkg.CurrentVer();
 
    AddStates(Pkg);

-

    Update(Pkg);
    Update(Pkg);

-

    AddSizes(Pkg);
    AddSizes(Pkg);

+
+   return true;

 }
                                                                        /*}}}*/
 // DepCache::MarkDelete - Put the package in the delete state          /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // DepCache::MarkDelete - Put the package in the delete state          /*{{{*/
 // ---------------------------------------------------------------------
 /* */

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

                              unsigned long Depth, bool FromUser)
 {
    if (IsModeChangeOk(ModeDelete, Pkg, Depth, FromUser) == false)
                              unsigned long Depth, bool FromUser)
 {
    if (IsModeChangeOk(ModeDelete, Pkg, Depth, FromUser) == false)

-      return;
+      return false;

 
    StateCache &P = PkgState[Pkg->ID];
 
    // Check that it is not already marked for delete
    if ((P.Mode == ModeDelete || P.InstallVer == 0) && 
        (Pkg.Purge() == true || rPurge == false))
 
    StateCache &P = PkgState[Pkg->ID];
 
    // Check that it is not already marked for delete
    if ((P.Mode == ModeDelete || P.InstallVer == 0) && 
        (Pkg.Purge() == true || rPurge == false))

-      return;
+      return true;

 
    // check if we are allowed to remove the package
    if (IsDeleteOk(Pkg,rPurge,Depth,FromUser) == false)
 
    // check if we are allowed to remove the package
    if (IsDeleteOk(Pkg,rPurge,Depth,FromUser) == false)

-      return;
+      return false;

 
    P.iFlags &= ~(AutoKept | Purge);
    if (rPurge == true)
 
    P.iFlags &= ~(AutoKept | Purge);
    if (rPurge == true)


@@ -915,6 +858,7 @@ void pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge,
    Update(Pkg);
    AddSizes(Pkg);
 
    Update(Pkg);
    AddSizes(Pkg);
 

+   return true;

 }
                                                                        /*}}}*/
 // DepCache::IsDeleteOk - check if it is ok to remove this package     /*{{{*/
 }
                                                                        /*}}}*/
 // DepCache::IsDeleteOk - check if it is ok to remove this package     /*{{{*/


@@ -995,18 +939,70 @@ bool pkgDepCache::IsModeChangeOk(ModeList const mode, 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,
+struct CompareProviders {
+   pkgCache::PkgIterator const Pkg;
+   CompareProviders(pkgCache::DepIterator const &Dep) : Pkg(Dep.TargetPkg()) {};
+   //bool operator() (APT::VersionList::iterator const &AV, APT::VersionList::iterator const &BV)
+   bool operator() (pkgCache::VerIterator const &AV, pkgCache::VerIterator const &BV)
+   {
+      pkgCache::PkgIterator const A = AV.ParentPkg();
+      pkgCache::PkgIterator const B = BV.ParentPkg();
+      // Prefer packages in the same group as the target; e.g. foo:i386, foo:amd64
+      if (A->Group != B->Group)
+      {
+        if (A->Group == Pkg->Group && B->Group != Pkg->Group)
+           return false;
+        else if (B->Group == Pkg->Group && A->Group != Pkg->Group)
+           return true;
+      }
+      // we like essentials
+      if ((A->Flags & pkgCache::Flag::Essential) != (B->Flags & pkgCache::Flag::Essential))
+      {
+        if ((A->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
+           return false;
+        else if ((B->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
+           return true;
+      }
+      if ((A->Flags & pkgCache::Flag::Important) != (B->Flags & pkgCache::Flag::Important))
+      {
+        if ((A->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important)
+           return false;
+        else if ((B->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important)
+           return true;
+      }
+      // higher priority seems like a good idea
+      if (AV->Priority != BV->Priority)
+        return AV->Priority < BV->Priority;
+      // prefer native architecture
+      if (strcmp(A.Arch(), B.Arch()) != 0)
+      {
+        if (strcmp(A.Arch(), A.Cache()->NativeArch()) == 0)
+           return false;
+        else if (strcmp(B.Arch(), B.Cache()->NativeArch()) == 0)
+           return true;
+        std::vector<std::string> archs = APT::Configuration::getArchitectures();
+        for (std::vector<std::string>::const_iterator a = archs.begin(); a != archs.end(); ++a)
+           if (*a == A.Arch())
+              return false;
+           else if (*a == B.Arch())
+              return true;
+      }
+      // unable to decide…
+      return A->ID < B->ID;
+   }
+};
+bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,

                              unsigned long Depth, bool FromUser,
                              bool ForceImportantDeps)
 {
    if (IsModeChangeOk(ModeInstall, Pkg, Depth, FromUser) == false)
                              unsigned long Depth, bool FromUser,
                              bool ForceImportantDeps)
 {
    if (IsModeChangeOk(ModeInstall, Pkg, Depth, FromUser) == false)

-      return;
+      return false;

 
    StateCache &P = PkgState[Pkg->ID];
 
    // See if there is even any possible instalation candidate
    if (P.CandidateVer == 0)
 
    StateCache &P = PkgState[Pkg->ID];
 
    // See if there is even any possible instalation candidate
    if (P.CandidateVer == 0)

-      return;
+      return false;

 
    /* Check that it is not already marked for install and that it can be 
       installed */
 
    /* Check that it is not already marked for install and that it can be 
       installed */


@@ -1015,13 +1011,13 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
        P.CandidateVer == (Version *)Pkg.CurrentVer()))
    {
       if (P.CandidateVer == (Version *)Pkg.CurrentVer() && P.InstallVer == 0)
        P.CandidateVer == (Version *)Pkg.CurrentVer()))
    {
       if (P.CandidateVer == (Version *)Pkg.CurrentVer() && P.InstallVer == 0)

-        MarkKeep(Pkg, false, FromUser, Depth+1);
-      return;
+        return MarkKeep(Pkg, false, FromUser, Depth+1);
+      return true;

    }
 
    // check if we are allowed to install the package
    if (IsInstallOk(Pkg,AutoInst,Depth,FromUser) == false)
    }
 
    // check if we are allowed to install the package
    if (IsInstallOk(Pkg,AutoInst,Depth,FromUser) == false)

-      return;
+      return false;

 
    ActionGroup group(*this);
    P.iFlags &= ~AutoKept;
 
    ActionGroup group(*this);
    P.iFlags &= ~AutoKept;


@@ -1056,8 +1052,8 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
    Update(Pkg);
    AddSizes(Pkg);
 
    Update(Pkg);
    AddSizes(Pkg);
 

-   if (AutoInst == false || _config->Find("APT::Solver::Name", "internal") != "internal")
-      return;
+   if (AutoInst == false || _config->Find("APT::Solver", "internal") != "internal")
+      return true;

 
    if (DebugMarker == true)
       std::clog << OutputInDepth(Depth) << "MarkInstall " << Pkg << " FU=" << FromUser << std::endl;
 
    if (DebugMarker == true)
       std::clog << OutputInDepth(Depth) << "MarkInstall " << Pkg << " FU=" << FromUser << std::endl;


@@ -1069,7 +1065,7 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       DepIterator Start = Dep;
       bool Result = true;
       unsigned Ors = 0;
       DepIterator Start = Dep;
       bool Result = true;
       unsigned Ors = 0;

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


@@ -1088,7 +1084,22 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       */
       if (IsImportantDep(Start) == false)
         continue;
       */
       if (IsImportantDep(Start) == false)
         continue;

-      
+
+      /* 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;
+      if (Ors == 1 && (DepState[Start->ID] &DepCVer) != DepCVer && Start.IsNegative() == false)
+      {
+        if(DebugAutoInstall == true)
+           std::clog << OutputInDepth(Depth) << Start << " can't be satisfied!" << std::endl;
+        if (Start.IsCritical() == false)
+           continue;
+        // if the dependency was critical, we can't install it, so remove it again
+        MarkDelete(Pkg,false,Depth + 1, false);
+        return false;
+      }
+

       /* Check if any ImportantDep() (but not Critical) were added
        * since we installed the package.  Also check for deps that
        * were satisfied in the past: for instance, if a version
       /* Check if any ImportantDep() (but not Critical) were added
        * since we installed the package.  Also check for deps that
        * were satisfied in the past: for instance, if a version


@@ -1096,95 +1107,73 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
        * package should follow that Recommends rather than causing the
        * dependency to be removed. (bug #470115)
        */
        * package should follow that Recommends rather than causing the
        * dependency to be removed. (bug #470115)
        */

-      bool isNewImportantDep = false;
-      bool isPreviouslySatisfiedImportantDep = false;
-      if(!ForceImportantDeps && !Start.IsCritical())
+      if (Pkg->CurrentVer != 0 && ForceImportantDeps == false && Start.IsCritical() == false)

       {
       {

-        bool found=false;
-        VerIterator instVer = Pkg.CurrentVer();
-        if(!instVer.end())
+        bool isNewImportantDep = true;
+        bool isPreviouslySatisfiedImportantDep = false;
+        for (DepIterator D = Pkg.CurrentVer().DependsList(); D.end() != true; ++D)
+        {
+           //FIXME: Should we handle or-group better here?
+           // We do not check if the package we look for is part of the same or-group
+           // we might find while searching, but could that really be a problem?
+           if (D.IsCritical() == true || IsImportantDep(D) == false ||
+               Start.TargetPkg() != D.TargetPkg())
+              continue;
+
+           isNewImportantDep = false;
+
+           while ((D->CompareOp & Dep::Or) != 0)
+              ++D;
+
+           isPreviouslySatisfiedImportantDep = (((*this)[D] & DepGNow) != 0);
+           if (isPreviouslySatisfiedImportantDep == true)
+              break;
+        }
+
+        if(isNewImportantDep == true)

         {
         {

-          for (DepIterator D = instVer.DependsList(); D.end() != true; D++)
-            {
-              //FIXME: deal better with or-groups(?)
-              if(IsImportantDep(D) && !D.IsCritical() &&
-                 Start.TargetPkg() == D.TargetPkg())
-                {
-                  if(!isPreviouslySatisfiedImportantDep)
-                    {
-                      DepIterator D2 = D;
-                      while((D2->CompareOp & Dep::Or) != 0)
-                        ++D2;
-
-                      isPreviouslySatisfiedImportantDep =
-                        (((*this)[D2] & DepGNow) != 0);
-                    }
-
-                  found=true;
-                }
-            }
-           // this is a new dep if it was not found to be already
-           // a important dep of the installed pacakge
-           isNewImportantDep = !found;
+           if (DebugAutoInstall == true)
+              std::clog << OutputInDepth(Depth) << "new important dependency: "
+                        << Start.TargetPkg().FullName() << std::endl;
+        }
+        else if(isPreviouslySatisfiedImportantDep == true)
+        {
+           if (DebugAutoInstall == true)
+              std::clog << OutputInDepth(Depth) << "previously satisfied important dependency on "
+                        << Start.TargetPkg().FullName() << std::endl;
+        }
+        else
+        {
+           if (DebugAutoInstall == true)
+              std::clog << OutputInDepth(Depth) << "ignore old unsatisfied important dependency on "
+                        << Start.TargetPkg().FullName() << std::endl;
+           continue;

         }
       }
         }
       }

-      if(isNewImportantDep)
-        if(DebugAutoInstall == true)
-           std::clog << OutputInDepth(Depth) << "new important dependency: "
-                     << Start.TargetPkg().Name() << std::endl;
-      if(isPreviouslySatisfiedImportantDep)
-       if(DebugAutoInstall == true)
-         std::clog << OutputInDepth(Depth) << "previously satisfied important dependency on "
-                   << Start.TargetPkg().Name() << std::endl;
-
-      // skip important deps if the package is already installed
-      if (Pkg->CurrentVer != 0 && Start.IsCritical() == false 
-         && !isNewImportantDep && !isPreviouslySatisfiedImportantDep
-         && !ForceImportantDeps)
-        continue;
-      
-      /* 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
 
       /* This bit is for processing the possibilty of an install/upgrade

-         fixing the problem */
-      SPtrArray<Version *> List = Start.AllTargets();
-      if (Start->Type != Dep::DpkgBreaks &&
-         (DepState[Start->ID] & DepCVer) == DepCVer)
+         fixing the problem for "positive" dependencies */
+      if (Start.IsNegative() == false && (DepState[Start->ID] & DepCVer) == DepCVer)

       {
       {

-        // 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++)
+        APT::VersionList verlist;
+        pkgCache::VerIterator Cand = PkgState[Start.TargetPkg()->ID].CandidateVerIter(*this);
+        if (Cand.end() == false && VS().CheckDep(Cand.VerStr(), Start->CompareOp, Start.TargetVer()) == true)
+           verlist.insert(Cand);
+        for (PrvIterator Prv = Start.TargetPkg().ProvidesList(); Prv.end() != true; ++Prv)

         {
         {

-           PkgIterator Pkg(*Cache,Cache->PkgP + (*Cur)->ParentPkg);
-           if (PkgState[Pkg->ID].CandidateVer != *Cur)
+           pkgCache::VerIterator V = Prv.OwnerVer();
+           pkgCache::VerIterator Cand = PkgState[Prv.OwnerPkg()->ID].CandidateVerIter(*this);
+           if (Cand.end() == true || V != Cand ||
+               VS().CheckDep(Prv.ProvideVersion(), Start->CompareOp, Start.TargetVer()) == false)

               continue;
               continue;

-           InstPkg = Pkg;
-           break;
+           verlist.insert(Cand);

         }
         }

+        CompareProviders comp(Start);
+        APT::VersionList::iterator InstVer = std::max_element(verlist.begin(), verlist.end(), comp);

 
 

-        // 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)
+        if (InstVer != verlist.end())

         {
         {

+           pkgCache::PkgIterator InstPkg = InstVer.ParentPkg();

            if(DebugAutoInstall == true)
               std::clog << OutputInDepth(Depth) << "Installing " << InstPkg.Name()
                         << " as " << Start.DepType() << " of " << Pkg.Name()
            if(DebugAutoInstall == true)
               std::clog << OutputInDepth(Depth) << "Installing " << InstPkg.Name()
                         << " as " << Start.DepType() << " of " << Pkg.Name()


@@ -1202,19 +1191,19 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
               // mark automatic dependency
               MarkInstall(InstPkg,true,Depth + 1, false, ForceImportantDeps);
               // Set the autoflag, after MarkInstall because MarkInstall unsets it
               // mark automatic dependency
               MarkInstall(InstPkg,true,Depth + 1, false, ForceImportantDeps);
               // Set the autoflag, after MarkInstall because MarkInstall unsets it

-              if (P->CurrentVer == 0)
+              if (InstPkg->CurrentVer == 0)

                  PkgState[InstPkg->ID].Flags |= Flag::Auto;
            }
         }
         continue;
       }
                  PkgState[InstPkg->ID].Flags |= Flag::Auto;
            }
         }
         continue;
       }

-
-      /* For conflicts we just de-install the package and mark as auto,
-         Conflicts may not have or groups.  For dpkg's Breaks we try to
-         upgrade the package. */
-      if (Start->Type == Dep::Conflicts || Start->Type == Dep::Obsoletes ||
-         Start->Type == Dep::DpkgBreaks)
+      /* Negative dependencies have no or-group
+        If the dependency isn't versioned, we try if an upgrade might solve the problem.
+        Otherwise we remove the offender if needed */
+      else if (Start.IsNegative() == true && Start->Type != pkgCache::Dep::Obsoletes)

       {
       {

+        SPtrArray<Version *> List = Start.AllTargets();
+        pkgCache::PkgIterator TrgPkg = Start.TargetPkg();

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


@@ -1225,15 +1214,20 @@ void pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
            if (PkgState[Pkg->ID].InstallVer == 0)
               continue;
 
            if (PkgState[Pkg->ID].InstallVer == 0)
               continue;
 

-           if (PkgState[Pkg->ID].CandidateVer != *I &&
-               Start->Type == Dep::DpkgBreaks)
-              MarkInstall(Pkg,true,Depth + 1, false, ForceImportantDeps);
-           else
-              MarkDelete(Pkg,false,Depth + 1, false);
+           if ((Start->Version != 0 || TrgPkg != Pkg) &&
+               PkgState[Pkg->ID].CandidateVer != PkgState[Pkg->ID].InstallVer &&
+               PkgState[Pkg->ID].CandidateVer != *I &&
+               MarkInstall(Pkg,true,Depth + 1, false, ForceImportantDeps) == true)
+              continue;
+           else if ((Start->Type == pkgCache::Dep::Conflicts || Start->Type == pkgCache::Dep::DpkgBreaks) &&
+                    MarkDelete(Pkg,false,Depth + 1, false) == false)
+              break;

         }
         continue;
         }
         continue;

-      }      
+      }

    }
    }

+
+   return Dep.end() == true;

 }
                                                                        /*}}}*/
 // DepCache::IsInstallOk - check if it is ok to install this package   /*{{{*/
 }
                                                                        /*}}}*/
 // DepCache::IsInstallOk - check if it is ok to install this package   /*{{{*/


@@ -1254,25 +1248,42 @@ void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To)
    if (unlikely(Pkg.end() == true))
       return;
 
    if (unlikely(Pkg.end() == true))
       return;
 

+   APT::PackageList pkglist;
+   if (Pkg->CurrentVer != 0 &&
+       (Pkg.CurrentVer()-> MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+   {
+      pkgCache::GrpIterator Grp = Pkg.Group();
+      for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+      {
+        if (P->CurrentVer != 0)
+           pkglist.insert(P);
+      }
+   }
+   else
+      pkglist.insert(Pkg);
+

    ActionGroup group(*this);
 
    ActionGroup group(*this);
 

-   RemoveSizes(Pkg);
-   RemoveStates(Pkg);
-   
-   StateCache &P = PkgState[Pkg->ID];
-   if (To == true)
-      P.iFlags |= ReInstall;
-   else
-      P.iFlags &= ~ReInstall;
-   
-   AddStates(Pkg);
-   AddSizes(Pkg);
+   for (APT::PackageList::const_iterator Pkg = pkglist.begin(); Pkg != pkglist.end(); ++Pkg)
+   {
+      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                /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 }
                                                                        /*}}}*/
 // DepCache::SetCandidateVersion - Change the candidate version                /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-void pkgDepCache::SetCandidateVersion(VerIterator TargetVer, bool const &Pseudo)
+void pkgDepCache::SetCandidateVersion(VerIterator TargetVer)

 {
    pkgCache::PkgIterator Pkg = TargetVer.ParentPkg();
    StateCache &P = PkgState[Pkg->ID];
 {
    pkgCache::PkgIterator Pkg = TargetVer.ParentPkg();
    StateCache &P = PkgState[Pkg->ID];


@@ -1526,12 +1537,12 @@ pkgCache::VerIterator pkgDepCache::Policy::GetCandidateVer(PkgIterator const &Pk
       unless they are already installed */
    VerIterator Last(*(pkgCache *)this,0);
    
       unless they are already installed */
    VerIterator Last(*(pkgCache *)this,0);
    

-   for (VerIterator I = Pkg.VersionList(); I.end() == false; I++)
+   for (VerIterator I = Pkg.VersionList(); I.end() == false; ++I)

    {
       if (Pkg.CurrentVer() == I)
         return I;
       
    {
       if (Pkg.CurrentVer() == I)
         return I;
       

-      for (VerFileIterator J = I.FileList(); J.end() == false; J++)
+      for (VerFileIterator J = I.FileList(); J.end() == false; ++J)

       {
         if ((J.File()->Flags & Flag::NotSource) != 0)
            continue;
       {
         if ((J.File()->Flags & Flag::NotSource) != 0)
            continue;


@@ -1562,7 +1573,7 @@ bool pkgDepCache::Policy::IsImportantDep(DepIterator const &Dep)
       return true;
    else if(Dep->Type == pkgCache::Dep::Recommends) 
    {
       return true;
    else if(Dep->Type == pkgCache::Dep::Recommends) 
    {

-      if ( _config->FindB("APT::Install-Recommends", false))
+      if (InstallRecommends)

         return true;
       // we suport a special mode to only install-recommends for certain
       // sections
         return true;
       // we suport a special mode to only install-recommends for certain
       // sections


@@ -1573,7 +1584,7 @@ bool pkgDepCache::Policy::IsImportantDep(DepIterator const &Dep)
         return true;
    }
    else if(Dep->Type == pkgCache::Dep::Suggests)
         return true;
    }
    else if(Dep->Type == pkgCache::Dep::Suggests)

-     return _config->FindB("APT::Install-Suggests", false);
+      return InstallSuggests;

 
    return false;
 }
 
    return false;
 }


@@ -1603,13 +1614,13 @@ bool pkgDepCache::MarkFollowsRecommends()
 
 bool pkgDepCache::MarkFollowsSuggests()
 {
 
 bool pkgDepCache::MarkFollowsSuggests()
 {

-  return _config->FindB("APT::AutoRemove::SuggestsImportant", false);
+  return _config->FindB("APT::AutoRemove::SuggestsImportant", true);

 }
 
 // pkgDepCache::MarkRequired - the main mark algorithm                 /*{{{*/
 bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
 {
 }
 
 // pkgDepCache::MarkRequired - the main mark algorithm                 /*{{{*/
 bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
 {

-   if (_config->Find("APT::Solver::Name", "internal") != "internal")
+   if (_config->Find("APT::Solver", "internal") != "internal")

       return true;
 
    bool follow_recommends;
       return true;
 
    bool follow_recommends;


@@ -1638,6 +1649,7 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
    {
       if(!(PkgState[p->ID].Flags & Flag::Auto) ||
          (p->Flags & Flag::Essential) ||
    {
       if(!(PkgState[p->ID].Flags & Flag::Auto) ||
          (p->Flags & Flag::Essential) ||

+         (p->Flags & Flag::Important) ||

          userFunc.InRootSet(p) ||
          // be nice even then a required package violates the policy (#583517)
          // and do the full mark process also for required packages
          userFunc.InRootSet(p) ||
          // be nice even then a required package violates the policy (#583517)
          // and do the full mark process also for required packages