X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/72b2accb108e3d3ec8113ce2d183638c719a5d0d..545ba6bdd8cb77ceca6b9fdc935db2accbea3493:/apt-pkg/depcache.cc

diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 031fca5c0..2656e9b42 100644
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -371,14 +371,11 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
    
    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();
-   PkgIterator Pkg = Dep.ParentPkg();
    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.IsNegative() == true)
+      if (Dep.IsIgnorable(P) == true)
 	 continue;
-      
+
       // Check if the provides is a hit
       if (Type == NowVersion)
       {
@@ -966,6 +963,13 @@ struct CompareProviders {
 	 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;
@@ -1148,9 +1152,8 @@ bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       }
 
       /* This bit is for processing the possibilty of an install/upgrade
-         fixing the problem */
-      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)
       {
 	 APT::VersionList verlist;
 	 pkgCache::VerIterator Cand = PkgState[Start.TargetPkg()->ID].CandidateVerIter(*this);
@@ -1161,7 +1164,7 @@ bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
 	    pkgCache::VerIterator V = Prv.OwnerVer();
 	    pkgCache::VerIterator Cand = PkgState[Prv.OwnerPkg()->ID].CandidateVerIter(*this);
 	    if (Cand.end() == true || V != Cand ||
-		VS().CheckDep(Cand.VerStr(), Start->CompareOp, Start.TargetVer()) == false)
+		VS().CheckDep(Prv.ProvideVersion(), Start->CompareOp, Start.TargetVer()) == false)
 	       continue;
 	    verlist.insert(Cand);
 	 }
@@ -1194,13 +1197,13 @@ bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
 	 }
 	 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.IsNegative() == true)
+      /* 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);
@@ -1211,15 +1214,17 @@ bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
 	    if (PkgState[Pkg->ID].InstallVer == 0)
 	       continue;
 
-	    if (PkgState[Pkg->ID].CandidateVer != *I &&
-		Start->Type == Dep::DpkgBreaks &&
+	    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 (MarkDelete(Pkg,false,Depth + 1, false) == false)
+	    else if ((Start->Type == pkgCache::Dep::Conflicts || Start->Type == pkgCache::Dep::DpkgBreaks) &&
+		     MarkDelete(Pkg,false,Depth + 1, false) == false)
 	       break;
 	 }
 	 continue;
-      }      
+      }
    }
 
    return Dep.end() == true;
@@ -1243,19 +1248,36 @@ void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To)
    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);
 
-   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		/*{{{*/
@@ -1627,6 +1649,7 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
    {
       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