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eipp: add Allow-Temporary-Remove-of-Essentials
[apt.git] / apt-pkg / packagemanager.cc
diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc
index 101912f9d107f55114ac45a91e56c0659861178a..a61c5f7a9c1f3f7ab90615302fb5213bf5953116 100644 (file)
--- a/apt-pkg/packagemanager.cc
+++ b/apt-pkg/packagemanager.cc
@@ -6,7 +6,7 @@
    Package Manager - Abstacts the package manager
 
    More work is needed in the area of transitioning provides, ie exim
    Package Manager - Abstacts the package manager
 
    More work is needed in the area of transitioning provides, ie exim
-   replacing smail. This can cause interesing side effects.
+   replacing smail. This can cause interesting side effects.
 
    Other cases involving conflicts+replaces should be tested. 
    
 
    Other cases involving conflicts+replaces should be tested. 
    
@@ -19,16 +19,17 @@
 #include <apt-pkg/orderlist.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/orderlist.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/error.h>
+#include <apt-pkg/edsp.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/algorithms.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/version.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/algorithms.h>
 #include <apt-pkg/configuration.h>
-#include <apt-pkg/sptr.h>
 #include <apt-pkg/macros.h>
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/cacheiterators.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/install-progress.h>
 #include <apt-pkg/macros.h>
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/cacheiterators.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/install-progress.h>
+#include <apt-pkg/prettyprinters.h>
 
 #include <stddef.h>
 #include <list>
 
 #include <stddef.h>
 #include <list>
@@ -45,7 +46,7 @@ bool pkgPackageManager::SigINTStop = false;
 // ---------------------------------------------------------------------
 /* */
 pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache),
 // ---------------------------------------------------------------------
 /* */
 pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache),
-                                                           List(NULL), Res(Incomplete)
+                                                           List(NULL), Res(Incomplete), d(NULL)
 {
    FileNames = new string[Cache.Head().PackageCount];
    Debug = _config->FindB("Debug::pkgPackageManager",false);
 {
    FileNames = new string[Cache.Head().PackageCount];
    Debug = _config->FindB("Debug::pkgPackageManager",false);
@@ -137,7 +138,7 @@ bool pkgPackageManager::FixMissing()
 // PM::ImmediateAdd - Add the immediate flag recursivly                        /*{{{*/
 // ---------------------------------------------------------------------
 /* This adds the immediate flag to the pkg and recursively to the
 // PM::ImmediateAdd - Add the immediate flag recursivly                        /*{{{*/
 // ---------------------------------------------------------------------
 /* This adds the immediate flag to the pkg and recursively to the
-   dependendies 
+   dependencies
  */
 void pkgPackageManager::ImmediateAdd(PkgIterator I, bool UseInstallVer, unsigned const int &Depth)
 {
  */
 void pkgPackageManager::ImmediateAdd(PkgIterator I, bool UseInstallVer, unsigned const int &Depth)
 {
@@ -160,7 +161,7 @@ void pkgPackageManager::ImmediateAdd(PkgIterator I, bool UseInstallVer, unsigned
         if(!List->IsFlag(D.TargetPkg(), pkgOrderList::Immediate))
         {
            if(Debug)
         if(!List->IsFlag(D.TargetPkg(), pkgOrderList::Immediate))
         {
            if(Debug)
-              clog << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << D.TargetPkg() << " cause of " << D.DepType() << " " << I.FullName() << endl;
+              clog << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << APT::PrettyPkg(&Cache, D.TargetPkg()) << " cause of " << D.DepType() << " " << I.FullName() << endl;
            List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
            ImmediateAdd(D.TargetPkg(), UseInstallVer, Depth + 1);
         }
            List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
            ImmediateAdd(D.TargetPkg(), UseInstallVer, Depth + 1);
         }
@@ -190,7 +191,7 @@ bool pkgPackageManager::CreateOrderList()
       if (I->VersionList == 0)
         continue;
       
       if (I->VersionList == 0)
         continue;
       
-      // Mark the package and its dependends for immediate configuration
+      // Mark the package and its dependents for immediate configuration
       if ((((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) &&
          NoImmConfigure == false) || ImmConfigureAll)
       {
       if ((((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) &&
          NoImmConfigure == false) || ImmConfigureAll)
       {
@@ -269,6 +270,33 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/
+// PM::CheckRBreaks - Look for reverse breaks                          /*{{{*/
+bool pkgPackageManager::CheckRBreaks(PkgIterator const &Pkg, DepIterator D,
+                                    const char * const Ver)
+{
+   for (;D.end() == false; ++D)
+   {
+      if (D->Type != pkgCache::Dep::DpkgBreaks)
+        continue;
+
+      PkgIterator const DP = D.ParentPkg();
+      if (Cache[DP].Delete() == false)
+        continue;
+
+      // Ignore self conflicts, ignore conflicts from irrelevant versions
+      if (D.IsIgnorable(Pkg) || D.ParentVer() != DP.CurrentVer())
+        continue;
+
+      if (Cache.VS().CheckDep(Ver, D->CompareOp, D.TargetVer()) == false)
+        continue;
+
+      // no earlyremove() here as user has already agreed to the permanent removal
+      if (SmartRemove(DP) == false)
+        return _error->Error("Internal Error, Could not early remove %s (%d)",DP.FullName().c_str(), 4);
+   }
+   return true;
+}
+                                                                       /*}}}*/
 // PM::ConfigureAll - Run the all out configuration                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This configures every package. It is assumed they are all unpacked and
 // PM::ConfigureAll - Run the all out configuration                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This configures every package. It is assumed they are all unpacked and
@@ -382,7 +410,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
         pkgCache::DepIterator Start, End;
         D.GlobOr(Start,End);
 
         pkgCache::DepIterator Start, End;
         D.GlobOr(Start,End);
 
-        if (End->Type != pkgCache::Dep::Depends)
+        if (End->Type != pkgCache::Dep::Depends && End->Type != pkgCache::Dep::PreDepends)
            continue;
         Bad = true;
 
            continue;
         Bad = true;
 
@@ -390,9 +418,9 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
          // to do anything at all
         for (DepIterator Cur = Start; true; ++Cur)
         {
          // to do anything at all
         for (DepIterator Cur = Start; true; ++Cur)
         {
-           SPtrArray<Version *> VList = Cur.AllTargets();
+           std::unique_ptr<Version *[]> VList(Cur.AllTargets());
 
 
-           for (Version **I = VList; *I != 0; ++I)
+           for (Version **I = VList.get(); *I != 0; ++I)
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
@@ -400,7 +428,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               // Check if the current version of the package is available and will satisfy this dependency
               if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
                   List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
               // Check if the current version of the package is available and will satisfy this dependency
               if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
                   List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
-                  DepPkg.State() == PkgIterator::NeedsNothing)
+                  DepPkg.State() == PkgIterator::NeedsNothing &&
+                  (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
               {
                  Bad = false;
                  break;
               {
                  Bad = false;
                  break;
@@ -413,8 +442,13 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               if (PkgLoop == true)
               {
                  if (Debug)
               if (PkgLoop == true)
               {
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl;
-                 Bad = false;
+                    std::clog << OutputInDepth(Depth) << "Package " << APT::PrettyPkg(&Cache, Pkg) << " loops in SmartConfigure";
+                 if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+                    Bad = false;
+                 else if (Debug)
+                    std::clog << ", but it isn't unpacked yet";
+                 if (Debug)
+                    std::clog << std::endl;
               }
            }
 
               }
            }
 
@@ -426,7 +460,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
          if (Bad == false)
          {
             if (Debug)
          if (Bad == false)
          {
             if (Debug)
-               std::clog << OutputInDepth(Depth) << "Found ok dep " << D.TargetPkg() << std::endl;
+               std::clog << OutputInDepth(Depth) << "Found ok dep " << APT::PrettyPkg(&Cache, Start.TargetPkg()) << std::endl;
             continue;
          }
 
             continue;
          }
 
@@ -434,9 +468,9 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
          // probably due to loops.
         for (DepIterator Cur = Start; true; ++Cur)
         {
          // probably due to loops.
         for (DepIterator Cur = Start; true; ++Cur)
         {
-           SPtrArray<Version *> VList = Cur.AllTargets();
+           std::unique_ptr<Version *[]> VList(Cur.AllTargets());
 
 
-           for (Version **I = VList; *I != 0; ++I)
+           for (Version **I = VList.get(); *I != 0; ++I)
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
@@ -444,7 +478,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               // Check if the current version of the package is available and will satisfy this dependency
               if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
                   List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
               // Check if the current version of the package is available and will satisfy this dependency
               if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
                   List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
-                  DepPkg.State() == PkgIterator::NeedsNothing)
+                  DepPkg.State() == PkgIterator::NeedsNothing &&
+                  (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
                   continue;
 
               // Check if the version that is going to be installed will satisfy the dependency
                   continue;
 
               // Check if the version that is going to be installed will satisfy the dependency
@@ -454,13 +489,18 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               if (PkgLoop == true)
               {
                  if (Debug)
               if (PkgLoop == true)
               {
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl;
-                 Bad = false;
+                    std::clog << OutputInDepth(Depth) << "Package " << APT::PrettyPkg(&Cache, Pkg) << " loops in SmartConfigure";
+                 if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+                    Bad = false;
+                 else if (Debug)
+                    std::clog << ", but it isn't unpacked yet";
+                 if (Debug)
+                    std::clog << std::endl;
               }
               else
               {
                  if (Debug)
               }
               else
               {
                  if (Debug)
-                    clog << OutputInDepth(Depth) << "Unpacking " << DepPkg.FullName() << " to avoid loop " << Cur << endl;
+                    clog << OutputInDepth(Depth) << "Unpacking " << DepPkg.FullName() << " to avoid loop " << APT::PrettyDep(&Cache, Cur) << endl;
                  if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     return false;
               }
                  if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     return false;
               }
@@ -496,16 +536,16 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
            Discard.GlobOr(Start,End);
         }
 
            Discard.GlobOr(Start,End);
         }
 
-        if (End->Type != pkgCache::Dep::Depends)
+        if (End->Type != pkgCache::Dep::Depends && End->Type != pkgCache::Dep::PreDepends)
            continue;
         Bad = true;
 
         // Search for dependencies which are unpacked but aren't configured yet (maybe loops)
         for (DepIterator Cur = Start; true; ++Cur)
         {
            continue;
         Bad = true;
 
         // Search for dependencies which are unpacked but aren't configured yet (maybe loops)
         for (DepIterator Cur = Start; true; ++Cur)
         {
-           SPtrArray<Version *> VList = Cur.AllTargets();
+           std::unique_ptr<Version *[]> VList(Cur.AllTargets());
 
 
-           for (Version **I = VList; *I != 0; ++I)
+           for (Version **I = VList.get(); *I != 0; ++I)
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
            {
               VerIterator Ver(Cache,*I);
               PkgIterator DepPkg = Ver.ParentPkg();
@@ -523,7 +563,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
                    break;
                  }
                  if (Debug)
                    break;
                  }
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Configure already unpacked " << DepPkg << std::endl;
+                    std::clog << OutputInDepth(Depth) << "Configure already unpacked " << APT::PrettyPkg(&Cache, DepPkg) << std::endl;
                  if (NonLoopingSmart(CONFIGURE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     return false;
                  break;
                  if (NonLoopingSmart(CONFIGURE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     return false;
                  break;
@@ -541,7 +581,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
 
 
         if (Bad == true && Changed == false && Debug == true)
 
 
         if (Bad == true && Changed == false && Debug == true)
-           std::clog << OutputInDepth(Depth) << "Could not satisfy " << *D << std::endl;
+           std::clog << OutputInDepth(Depth) << "Could not satisfy " << APT::PrettyDep(&Cache, *D) << std::endl;
       }
       if (i++ > max_loops)
          return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (2) for %s, aborting", Pkg.FullName().c_str());
       }
       if (i++ > max_loops)
          return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (2) for %s, aborting", Pkg.FullName().c_str());
@@ -550,6 +590,14 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
    if (Bad == true)
       return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str());
 
    if (Bad == true)
       return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str());
 
+   // Check for reverse conflicts.
+   if (CheckRBreaks(Pkg,Pkg.RevDependsList(), instVer.VerStr()) == false)
+      return false;
+
+   for (PrvIterator P = instVer.ProvidesList(); P.end() == false; ++P)
+      if (Pkg->Group != P.OwnerPkg()->Group)
+        CheckRBreaks(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
+
    if (PkgLoop) return true;
 
    static std::string const conf = _config->Find("PackageManager::Configure","all");
    if (PkgLoop) return true;
 
    static std::string const conf = _config->Find("PackageManager::Configure","all");
@@ -714,15 +762,16 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
            // Look for easy targets: packages that are already okay
            for (DepIterator Cur = Start; Bad == true; ++Cur)
            {
            // Look for easy targets: packages that are already okay
            for (DepIterator Cur = Start; Bad == true; ++Cur)
            {
-              SPtrArray<Version *> VList = Cur.AllTargets();
-              for (Version **I = VList; *I != 0; ++I)
+              std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+              for (Version **I = VList.get(); *I != 0; ++I)
               {
                  VerIterator Ver(Cache,*I);
                  PkgIterator Pkg = Ver.ParentPkg();
 
                  // See if the current version is ok
                  if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
               {
                  VerIterator Ver(Cache,*I);
                  PkgIterator Pkg = Ver.ParentPkg();
 
                  // See if the current version is ok
                  if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
-                     Pkg.State() == PkgIterator::NeedsNothing)
+                     Pkg.State() == PkgIterator::NeedsNothing &&
+                     (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
                  {
                     Bad = false;
                     if (Debug)
                  {
                     Bad = false;
                     if (Debug)
@@ -737,15 +786,18 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
            // Look for something that could be configured.
            for (DepIterator Cur = Start; Bad == true && Cur.end() == false; ++Cur)
            {
            // Look for something that could be configured.
            for (DepIterator Cur = Start; Bad == true && Cur.end() == false; ++Cur)
            {
-              SPtrArray<Version *> VList = Cur.AllTargets();
-              for (Version **I = VList; *I != 0; ++I)
+              std::unique_ptr<Version *[]> VList(Cur.AllTargets());
+              for (Version **I = VList.get(); *I != 0; ++I)
               {
                  VerIterator Ver(Cache,*I);
                  PkgIterator DepPkg = Ver.ParentPkg();
 
                  // Not the install version
               {
                  VerIterator Ver(Cache,*I);
                  PkgIterator DepPkg = Ver.ParentPkg();
 
                  // Not the install version
-                 if (Cache[DepPkg].InstallVer != *I ||
-                     (Cache[DepPkg].Keep() == true && DepPkg.State() == PkgIterator::NeedsNothing))
+                 if (Cache[DepPkg].InstallVer != *I)
+                    continue;
+
+                 if (Cache[DepPkg].Keep() == true && DepPkg.State() == PkgIterator::NeedsNothing &&
+                       (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
                     continue;
 
                  if (List->IsFlag(DepPkg,pkgOrderList::Configured))
                     continue;
 
                  if (List->IsFlag(DepPkg,pkgOrderList::Configured))
@@ -757,6 +809,16 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                  // check if it needs unpack or if if configure is enough
                  if (List->IsFlag(DepPkg,pkgOrderList::UnPacked) == false)
                  {
                  // check if it needs unpack or if if configure is enough
                  if (List->IsFlag(DepPkg,pkgOrderList::UnPacked) == false)
                  {
+                    // two packages pre-depending on each other can't be handled sanely
+                    if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop)
+                    {
+                       // this isn't an error as there is potential for something else to satisfy it
+                       // (like a provides or an or-group member)
+                       if (Debug)
+                          clog << OutputInDepth(Depth) << "Unpack loop detected between " << DepPkg.FullName() << " and " << Pkg.FullName() << endl;
+                       continue;
+                    }
+
                     if (Debug)
                        clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << DepPkg.FullName() << endl;
                     if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     if (Debug)
                        clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << DepPkg.FullName() << endl;
                     if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
@@ -780,29 +842,29 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                  End->Type == pkgCache::Dep::Obsoletes ||
                  End->Type == pkgCache::Dep::DpkgBreaks)
         {
                  End->Type == pkgCache::Dep::Obsoletes ||
                  End->Type == pkgCache::Dep::DpkgBreaks)
         {
-           SPtrArray<Version *> VList = End.AllTargets();
-           for (Version **I = VList; *I != 0; ++I)
+           std::unique_ptr<Version *[]> VList(End.AllTargets());
+           for (Version **I = VList.get(); *I != 0; ++I)
            {
               VerIterator Ver(Cache,*I);
               PkgIterator ConflictPkg = Ver.ParentPkg();
               if (ConflictPkg.CurrentVer() != Ver)
               {
                  if (Debug)
            {
               VerIterator Ver(Cache,*I);
               PkgIterator ConflictPkg = Ver.ParentPkg();
               if (ConflictPkg.CurrentVer() != Ver)
               {
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Ignore not-installed version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << End << std::endl;
+                    std::clog << OutputInDepth(Depth) << "Ignore not-installed version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << APT::PrettyDep(&Cache, End) << std::endl;
                  continue;
               }
 
               if (List->IsNow(ConflictPkg) == false)
               {
                  if (Debug)
                  continue;
               }
 
               if (List->IsNow(ConflictPkg) == false)
               {
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Ignore already dealt-with version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << End << std::endl;
+                    std::clog << OutputInDepth(Depth) << "Ignore already dealt-with version " << Ver.VerStr() << " of " << ConflictPkg.FullName() << " for " << APT::PrettyDep(&Cache, End) << std::endl;
                  continue;
               }
 
               if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
               {
                  if (Debug)
                  continue;
               }
 
               if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
               {
                  if (Debug)
-                    clog << OutputInDepth(Depth) << "Ignoring " << End << " as " << ConflictPkg.FullName() << "was temporarily removed" << endl;
+                    clog << OutputInDepth(Depth) << "Ignoring " << APT::PrettyDep(&Cache, End) << " as " << ConflictPkg.FullName() << "was temporarily removed" << endl;
                  continue;
               }
 
                  continue;
               }
 
@@ -811,7 +873,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                  if (End->Type == pkgCache::Dep::DpkgBreaks && End.IsMultiArchImplicit() == true)
                  {
                     if (Debug)
                  if (End->Type == pkgCache::Dep::DpkgBreaks && End.IsMultiArchImplicit() == true)
                  {
                     if (Debug)
-                       clog << OutputInDepth(Depth) << "Because dependency is MultiArchImplicit we ignored looping on: " << ConflictPkg << endl;
+                       clog << OutputInDepth(Depth) << "Because dependency is MultiArchImplicit we ignored looping on: " << APT::PrettyPkg(&Cache, ConflictPkg) << endl;
                     continue;
                  }
                  if (Debug)
                     continue;
                  }
                  if (Debug)
@@ -822,7 +884,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                        clog << OutputInDepth(Depth) << "Because of conflict knot, removing " << ConflictPkg.FullName() << " temporarily" << endl;
                  }
                  if (EarlyRemove(ConflictPkg, &End) == false)
                        clog << OutputInDepth(Depth) << "Because of conflict knot, removing " << ConflictPkg.FullName() << " temporarily" << endl;
                  }
                  if (EarlyRemove(ConflictPkg, &End) == false)
-                    return _error->Error("Internal Error, Could not early remove %s (2)",ConflictPkg.FullName().c_str());
+                    return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 3);
                  SomethingBad = true;
                  continue;
               }
                  SomethingBad = true;
                  continue;
               }
@@ -831,7 +893,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
               {
                  if (Debug)
                  {
               {
                  if (Debug)
                  {
-                    clog << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.FullName() << " to avoid " << End;
+                    clog << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.FullName() << " to avoid " << APT::PrettyDep(&Cache, End);
                     if (PkgLoop == true)
                        clog << " (Looping)";
                     clog << std::endl;
                     if (PkgLoop == true)
                        clog << " (Looping)";
                     clog << std::endl;
@@ -843,28 +905,28 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                     // but if it fails ignore this failure and look for alternative ways of solving
                     if (Debug)
                     {
                     // but if it fails ignore this failure and look for alternative ways of solving
                     if (Debug)
                     {
-                       clog << OutputInDepth(Depth) << "Avoidance unpack of " << ConflictPkg.FullName() << " failed for " << End << std::endl;
-                       _error->DumpErrors(std::clog);
+                       clog << OutputInDepth(Depth) << "Avoidance unpack of " << ConflictPkg.FullName() << " failed for " << APT::PrettyDep(&Cache, End) << " ignoring:" << std::endl;
+                       _error->DumpErrors(std::clog, GlobalError::DEBUG, false);
                     }
                     _error->RevertToStack();
                     // ignorance can only happen if a) one of the offenders is already gone
                     if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
                     {
                        if (Debug)
                     }
                     _error->RevertToStack();
                     // ignorance can only happen if a) one of the offenders is already gone
                     if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == true)
                     {
                        if (Debug)
-                          clog << OutputInDepth(Depth) << "But " << ConflictPkg.FullName() << " was temporarily removed in the meantime to satisfy " << End << endl;
+                          clog << OutputInDepth(Depth) << "But " << ConflictPkg.FullName() << " was temporarily removed in the meantime to satisfy " << APT::PrettyDep(&Cache, End) << endl;
                     }
                     else if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
                     {
                        if (Debug)
                     }
                     else if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
                     {
                        if (Debug)
-                          clog << OutputInDepth(Depth) << "But " << Pkg.FullName() << " was temporarily removed in the meantime to satisfy " << End << endl;
+                          clog << OutputInDepth(Depth) << "But " << Pkg.FullName() << " was temporarily removed in the meantime to satisfy " <<  APT::PrettyDep(&Cache, End) << endl;
                     }
                     // or b) we can make one go (removal or dpkg auto-deconfigure)
                     else
                     {
                        if (Debug)
                     }
                     // or b) we can make one go (removal or dpkg auto-deconfigure)
                     else
                     {
                        if (Debug)
-                          clog << OutputInDepth(Depth) << "So temprorary remove/deconfigure " << ConflictPkg.FullName() << " to satisfy " << End << endl;
+                          clog << OutputInDepth(Depth) << "So temprorary remove/deconfigure " << ConflictPkg.FullName() << " to satisfy " <<  APT::PrettyDep(&Cache, End) << endl;
                        if (EarlyRemove(ConflictPkg, &End) == false)
                        if (EarlyRemove(ConflictPkg, &End) == false)
-                          return _error->Error("Internal Error, Could not early remove %s (2)",ConflictPkg.FullName().c_str());
+                          return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 2);
                     }
                  }
                  else
                     }
                  }
                  else
@@ -873,10 +935,10 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
               else
               {
                  if (Debug)
               else
               {
                  if (Debug)
-                    clog << OutputInDepth(Depth) << "Removing " << ConflictPkg.FullName() << " now to avoid " << End << endl;
+                    clog << OutputInDepth(Depth) << "Removing " << ConflictPkg.FullName() << " now to avoid " << APT::PrettyDep(&Cache, End) << endl;
                  // no earlyremove() here as user has already agreed to the permanent removal
                  if (SmartRemove(Pkg) == false)
                  // no earlyremove() here as user has already agreed to the permanent removal
                  if (SmartRemove(Pkg) == false)
-                    return _error->Error("Internal Error, Could not early remove %s (1)",ConflictPkg.FullName().c_str());
+                    return _error->Error("Internal Error, Could not early remove %s (%d)",ConflictPkg.FullName().c_str(), 1);
               }
            }
         }
               }
            }
         }
@@ -891,7 +953,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
    if (couldBeTemporaryRemoved == true && List->IsFlag(Pkg,pkgOrderList::Removed) == true)
    {
       if (Debug)
    if (couldBeTemporaryRemoved == true && List->IsFlag(Pkg,pkgOrderList::Removed) == true)
    {
       if (Debug)
-        std::clog << OutputInDepth(Depth) << "Prevent unpack as " << Pkg << " is currently temporarily removed" << std::endl;
+        std::clog << OutputInDepth(Depth) << "Prevent unpack as " << APT::PrettyPkg(&Cache, Pkg) << " is currently temporarily removed" << std::endl;
       return true;
    }
 
       return true;
    }
 
@@ -975,6 +1037,23 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
    if (Debug == true)
       clog << "Beginning to order" << endl;
 
    if (Debug == true)
       clog << "Beginning to order" << endl;
 
+   std::string const planer = _config->Find("APT::Planer", "internal");
+   if (planer != "internal")
+   {
+      unsigned int flags = 0;
+      if (_config->FindB("APT::Immediate-Configure", true) == false)
+        flags |= EIPP::Request::NO_IMMEDIATE_CONFIGURATION;
+      else if (_config->FindB("APT::Immediate-Configure-All", false))
+        flags |= EIPP::Request::IMMEDIATE_CONFIGURATION_ALL;
+      else if (_config->FindB("APT::Force-LoopBreak", false))
+        flags |= EIPP::Request::ALLOW_TEMPORARY_REMOVE_OF_ESSENTIALS;
+
+      if (EIPP::OrderInstall(planer.c_str(), this, flags, nullptr))
+        return Completed;
+      else
+        return Failed;
+   }
+
    bool const ordering =
        _config->FindB("PackageManager::UnpackAll",true) ?
                List->OrderUnpack(FileNames) : List->OrderCritical();
    bool const ordering =
        _config->FindB("PackageManager::UnpackAll",true) ?
                List->OrderUnpack(FileNames) : List->OrderCritical();
@@ -1059,7 +1138,6 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
 // PM::DoInstallPostFork - compat /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // PM::DoInstallPostFork - compat /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
 pkgPackageManager::OrderResult
 pkgPackageManager::DoInstallPostFork(int statusFd)
 {
 pkgPackageManager::OrderResult
 pkgPackageManager::DoInstallPostFork(int statusFd)
 {
@@ -1081,22 +1159,10 @@ pkgPackageManager::DoInstallPostFork(APT::Progress::PackageManager *progress)
    
    return Res;
 }
    
    return Res;
 }
-#else
-pkgPackageManager::OrderResult
-pkgPackageManager::DoInstallPostFork(int statusFd)
-{
-   bool goResult = Go(statusFd);
-   if(goResult == false) 
-      return Failed;
-   
-   return Res;
-}
-#endif
                                                                        /*}}}*/ 
 // PM::DoInstall - Does the installation                               /*{{{*/
 // ---------------------------------------------------------------------
 /* compat */
                                                                        /*}}}*/ 
 // PM::DoInstall - Does the installation                               /*{{{*/
 // ---------------------------------------------------------------------
 /* compat */
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(int statusFd)
 {
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(int statusFd)
 {
@@ -1106,21 +1172,11 @@ pkgPackageManager::DoInstall(int statusFd)
     delete progress;
     return res;
  }
     delete progress;
     return res;
  }
-#else
-pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
-{
-   if(DoInstallPreFork() == Failed)
-      return Failed;
-
-   return DoInstallPostFork(statusFd);
-}
-#endif
                                                                        /*}}}*/ 
 // PM::DoInstall - Does the installation                               /*{{{*/
 // ---------------------------------------------------------------------
 /* This uses the filenames in FileNames and the information in the
    DepCache to perform the installation of packages.*/
                                                                        /*}}}*/ 
 // PM::DoInstall - Does the installation                               /*{{{*/
 // ---------------------------------------------------------------------
 /* This uses the filenames in FileNames and the information in the
    DepCache to perform the installation of packages.*/
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress)
 {
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress)
 {
@@ -1129,5 +1185,4 @@ pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress)
    
    return DoInstallPostFork(progress);
 }
    
    return DoInstallPostFork(progress);
 }
-#endif
                                                                        /*}}}*/       
                                                                        /*}}}*/       
APT (for Cydia)