* apt-pkg/orderlist.cc:
[ntk/apt.git] / apt-pkg / orderlist.cc
index 01b1507..eab05a4 100644 (file)
@@ -117,7 +117,8 @@ bool pkgOrderList::IsMissing(PkgIterator Pkg)
       return false;
 
    // Skip Packages that need configure only.
-   if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && 
+   if ((Pkg.State() == pkgCache::PkgIterator::NeedsConfigure ||
+        Pkg.State() == pkgCache::PkgIterator::NeedsNothing) &&
        Cache[Pkg].Keep() == true)
       return false;
 
@@ -126,6 +127,7 @@ bool pkgOrderList::IsMissing(PkgIterator Pkg)
    
    if (FileList[Pkg->ID].empty() == false)
       return false;
+
    return true;
 }
                                                                        /*}}}*/
@@ -174,22 +176,35 @@ bool pkgOrderList::DoRun()
 bool pkgOrderList::OrderCritical()
 {
    FileList = 0;
-   
-   Primary = &pkgOrderList::DepUnPackPre;
+
+   Primary = &pkgOrderList::DepUnPackPreD;
    Secondary = 0;
    RevDepends = 0;
    Remove = 0;
    LoopCount = 0;
-   
+
    // Sort
    Me = this;
-   qsort(List,End - List,sizeof(*List),&OrderCompareB);   
-   
+   qsort(List,End - List,sizeof(*List),&OrderCompareB);
+
    if (DoRun() == false)
       return false;
-   
+
    if (LoopCount != 0)
       return _error->Error("Fatal, predepends looping detected");
+
+   if (Debug == true)
+   {
+      clog << "** Critical Unpack ordering done" << endl;
+
+      for (iterator I = List; I != End; I++)
+      {
+        PkgIterator P(Cache,*I);
+        if (IsNow(P) == true)
+           clog << "  " << P.FullName() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
+      }
+   }
+
    return true;
 }
                                                                        /*}}}*/
@@ -205,7 +220,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
    if (FileList != 0)
    {
       WipeFlags(After);
-      
+
       // Set the inlist flag
       for (iterator I = List; I != End; I++)
       {
@@ -214,7 +229,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
             Flag(*I,After);
       }
    }
-   
+
    Primary = &pkgOrderList::DepUnPackCrit;
    Secondary = &pkgOrderList::DepConfigure;
    RevDepends = &pkgOrderList::DepUnPackDep;
@@ -229,7 +244,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
       clog << "** Pass A" << endl;
    if (DoRun() == false)
       return false;
-   
+
    if (Debug == true)
       clog << "** Pass B" << endl;
    Secondary = 0;
@@ -243,7 +258,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
    Remove = 0;             // Otherwise the libreadline remove problem occures
    if (DoRun() == false)
       return false;
-      
+
    if (Debug == true)
       clog << "** Pass D" << endl;
    LoopCount = 0;
@@ -259,9 +274,9 @@ bool pkgOrderList::OrderUnpack(string *FileList)
       {
         PkgIterator P(Cache,*I);
         if (IsNow(P) == true)
-           clog << P.Name() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
+           clog << "  " << P.FullName() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
       }
-   }   
+   }
 
    return true;
 }
@@ -286,29 +301,35 @@ bool pkgOrderList::OrderConfigure()
 /* Higher scores order earlier */
 int pkgOrderList::Score(PkgIterator Pkg)
 {
+   static int const ScoreDelete = _config->FindI("OrderList::Score::Delete", 500);
+
    // Removal is always done first
    if (Cache[Pkg].Delete() == true)
-      return 200;
-   
+      return ScoreDelete;
+
    // This should never happen..
    if (Cache[Pkg].InstVerIter(Cache).end() == true)
       return -1;
-   
+
+   static int const ScoreEssential = _config->FindI("OrderList::Score::Essential", 200);
+   static int const ScoreImmediate = _config->FindI("OrderList::Score::Immediate", 10);
+   static int const ScorePreDepends = _config->FindI("OrderList::Score::PreDepends", 50);
+
    int Score = 0;
    if ((Pkg->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
-      Score += 100;
+      Score += ScoreEssential;
 
    if (IsFlag(Pkg,Immediate) == true)
-      Score += 10;
-   
-   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); 
+      Score += ScoreImmediate;
+
+   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
        D.end() == false; D++)
       if (D->Type == pkgCache::Dep::PreDepends)
       {
-        Score += 50;
+        Score += ScorePreDepends;
         break;
       }
-      
+
    // Important Required Standard Optional Extra
    signed short PrioMap[] = {0,5,4,3,1,0};
    if (Cache[Pkg].InstVerIter(Cache)->Priority <= 5)
@@ -386,6 +407,7 @@ int pkgOrderList::OrderCompareA(const void *a, const void *b)
    
    int ScoreA = Me->Score(A);
    int ScoreB = Me->Score(B);
+
    if (ScoreA > ScoreB)
       return -1;
    
@@ -422,6 +444,7 @@ int pkgOrderList::OrderCompareB(const void *a, const void *b)
    
    int ScoreA = Me->Score(A);
    int ScoreB = Me->Score(B);
+
    if (ScoreA > ScoreB)
       return -1;
    
@@ -467,7 +490,7 @@ bool pkgOrderList::VisitRProvides(DepFunc F,VerIterator Ver)
    bool Res = true;
    for (PrvIterator P = Ver.ProvidesList(); P.end() == false; P++)
       Res &= (this->*F)(P.ParentPkg().RevDependsList());
-   return true;
+   return Res;
 }
                                                                        /*}}}*/
 // OrderList::VisitProvides - Visit all of the providing packages      /*{{{*/
@@ -522,7 +545,7 @@ bool pkgOrderList::VisitNode(PkgIterator Pkg)
    if (Debug == true)
    {
       for (int j = 0; j != Depth; j++) clog << ' ';
-      clog << "Visit " << Pkg.Name() << endl;
+      clog << "Visit " << Pkg.FullName() << endl;
    }
    
    Depth++;
@@ -581,7 +604,7 @@ bool pkgOrderList::VisitNode(PkgIterator Pkg)
    if (Debug == true)
    {
       for (int j = 0; j != Depth; j++) clog << ' ';
-      clog << "Leave " << Pkg.Name() << ' ' << IsFlag(Pkg,Added) << ',' << IsFlag(Pkg,AddPending) << endl;
+      clog << "Leave " << Pkg.FullName() << ' ' << IsFlag(Pkg,Added) << ',' << IsFlag(Pkg,AddPending) << endl;
    }
    
    return true;
@@ -859,13 +882,16 @@ bool pkgOrderList::DepRemove(DepIterator D)
            continue;
 
         /* We wish to see if the dep on the parent package is okay
-           in the removed (install) state of the target pkg. */         
+           in the removed (install) state of the target pkg. */
+        bool tryFixDeps = false;
         if (CheckDep(D) == true)
         {
            // We want to catch loops with the code below.
            if (IsFlag(D.ParentPkg(),AddPending) == false)
               continue;
         }
+        else
+           tryFixDeps = true;
 
         // This is the loop detection
         if (IsFlag(D.ParentPkg(),Added) == true || 
@@ -876,6 +902,100 @@ bool pkgOrderList::DepRemove(DepIterator D)
            continue;
         }
 
+        if (tryFixDeps == true)
+        {
+           for (pkgCache::DepIterator F = D.ParentPkg().CurrentVer().DependsList();
+                F.end() == false; ++F)
+           {
+              if (F->Type != pkgCache::Dep::Depends && F->Type != pkgCache::Dep::PreDepends)
+                 continue;
+              // Check the Providers
+              if (F.TargetPkg()->ProvidesList != 0)
+              {
+                 pkgCache::PrvIterator Prov = F.TargetPkg().ProvidesList();
+                 for (; Prov.end() == false; ++Prov)
+                 {
+                    pkgCache::PkgIterator const P = Prov.OwnerPkg();
+                    if (IsFlag(P, InList) == true &&
+                        IsFlag(P, AddPending) == true &&
+                        IsFlag(P, Added) == false &&
+                        Cache[P].InstallVer == 0)
+                       break;
+                 }
+                 if (Prov.end() == false)
+                    for (pkgCache::PrvIterator Prv = F.TargetPkg().ProvidesList();
+                         Prv.end() == false; ++Prv)
+                    {
+                       pkgCache::PkgIterator const P = Prv.OwnerPkg();
+                       if (IsFlag(P, InList) == true &&
+                           IsFlag(P, AddPending) == false &&
+                           Cache[P].InstallVer != 0 &&
+                           VisitNode(P) == true)
+                       {
+                          Flag(P, Immediate);
+                          tryFixDeps = false;
+                          break;
+                       }
+                    }
+                 if (tryFixDeps == false)
+                    break;
+              }
+
+              // Check for Or groups
+              if ((F->CompareOp & pkgCache::Dep::Or) != pkgCache::Dep::Or)
+                 continue;
+              // Lets see if the package is part of the Or group
+              pkgCache::DepIterator S = F;
+              for (; S.end() == false; ++S)
+              {
+                 if (S.TargetPkg() == D.TargetPkg())
+                    break;
+                 if ((S->CompareOp & pkgCache::Dep::Or) != pkgCache::Dep::Or ||
+                     CheckDep(S)) // Or group is satisfied by another package
+                    for (;S.end() == false; ++S);
+              }
+              if (S.end() == true)
+                 continue;
+              // skip to the end of the or group
+              for (;S.end() == false && (S->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or; ++S);
+              ++S;
+              // The soon to be removed is part of the Or group
+              // start again in the or group and find something which will serve as replacement
+              for (; F.end() == false && F != S; ++F)
+              {
+                 if (IsFlag(F.TargetPkg(), InList) == true &&
+                     IsFlag(F.TargetPkg(), AddPending) == false &&
+                     Cache[F.TargetPkg()].InstallVer != 0 &&
+                     VisitNode(F.TargetPkg()) == true)
+                 {
+                    Flag(F.TargetPkg(), Immediate);
+                    tryFixDeps = false;
+                    break;
+                 }
+                 else if (F.TargetPkg()->ProvidesList != 0)
+                 {
+                    pkgCache::PrvIterator Prv = F.TargetPkg().ProvidesList();
+                    for (; Prv.end() == false; ++Prv)
+                    {
+                       if (IsFlag(Prv.OwnerPkg(), InList) == true &&
+                           IsFlag(Prv.OwnerPkg(), AddPending) == false &&
+                           Cache[Prv.OwnerPkg()].InstallVer != 0 &&
+                           VisitNode(Prv.OwnerPkg()) == true)
+                       {
+                          Flag(Prv.OwnerPkg(), Immediate);
+                          tryFixDeps = false;
+                          break;
+                       }
+                    }
+                    if (Prv.end() == false)
+                       break;
+                 }
+              }
+              if (tryFixDeps == false)
+                 break;
+           }
+        }
+
         // Skip over missing files
         if (IsMissing(D.ParentPkg()) == true)
            continue;