RPM version compare test program

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

diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index fb85d12f9cf182ff29d609ae9263cfec425b7c26..e1f9edb2a23bb2462525f50c814a915f0541f0d9 100644 (file)
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: algorithms.cc,v 1.32 2001/02/20 07:03:17 jgg Exp $
+// $Id: algorithms.cc,v 1.34 2001/04/06 05:40:03 jgg Exp $
 /* ######################################################################
 
    Algorithms - A set of misc algorithms
@@ -378,7 +378,7 @@ bool pkgMinimizeUpgrade(pkgDepCache &Cache)
    if (Cache.BrokenCount() != 0)
       return false;
    
-   // We loop indefinately to get the minimal set size.
+   // We loop for 10 tries to get the minimal set size.
    bool Change = false;
    unsigned int Count = 0;
    do
@@ -856,10 +856,13 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
            {
               pkgCache::VerIterator Ver(Cache,*V);
               pkgCache::PkgIterator Pkg = Ver.ParentPkg();
-           
+
               if (Debug == true)
                  clog << "  Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] <<
                  " as a solution to " << I.Name() << ' ' << (int)Scores[I->ID] << endl;
+
+              /* Try to fix the package under consideration rather than
+                 fiddle with the VList package */
               if (Scores[I->ID] <= Scores[Pkg->ID] ||
                   ((Cache[Start] & pkgDepCache::DepNow) == 0 &&
                    End->Type != pkgCache::Dep::Conflicts &&
@@ -920,11 +923,21 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
               }
               else
               {
-                 if (Debug == true)
-                    clog << "  Added " << Pkg.Name() << " to the remove list" << endl;
+                 /* This is a conflicts, and the version we are looking
+                    at is not the currently selected version of the 
+                    package, which means it is not necessary to 
+                    remove/keep */
+                 if (Cache[Pkg].InstallVer != Ver &&
+                     (Start->Type == pkgCache::Dep::Conflicts ||
+                      Start->Type == pkgCache::Dep::Obsoletes))
+                    continue;
+                 
                  // Skip adding to the kill list if it is protected
                  if ((Flags[Pkg->ID] & Protected) != 0)
                     continue;
+               
+                 if (Debug == true)
+                    clog << "  Added " << Pkg.Name() << " to the remove list" << endl;
                  
                  LEnd->Pkg = Pkg;
                  LEnd->Dep = End;