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-rw-r--r--apt-pkg/algorithms.cc65
1 files changed, 40 insertions, 25 deletions
diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index d84ce2e21..dd0928562 100644
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -1,6 +1,6 @@
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: algorithms.cc,v 1.23 1999/07/30 02:54:25 jgg Exp $
+// $Id: algorithms.cc,v 1.24 1999/09/30 06:30:34 jgg Exp $
/* ######################################################################
Algorithms - A set of misc algorithms
@@ -715,13 +715,18 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
// Isolate the problem dependency
PackageKill KillList[100];
PackageKill *LEnd = KillList;
- for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); D.end() == false;)
+ bool InOr = false;
+ pkgCache::DepIterator Start;
+ pkgCache::DepIterator End;
+ for (pkgCache::DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
+ D.end() == false || InOr == true;)
{
// Compute a single dependency element (glob or)
- pkgCache::DepIterator Start;
- pkgCache::DepIterator End;
- D.GlobOr(Start,End);
-
+ if (InOr == false)
+ D.GlobOr(Start,End);
+ else
+ Start++;
+
// We only worry about critical deps.
if (End.IsCritical() != true)
continue;
@@ -730,25 +735,27 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall)
continue;
+ InOr = Start != End;
+
// Hm, the group is broken.. I have no idea how to handle this
- if (Start != End)
+/* if (Start != End)
{
if (Debug == true)
clog << "Note, a broken or group was found in " << I.Name() << "." << endl;
if ((Flags[I->ID] & Protected) != Protected)
Cache.MarkDelete(I);
break;
- }
+ }*/
if (Debug == true)
- clog << "Package " << I.Name() << " has broken dep on " << End.TargetPkg().Name() << endl;
+ clog << "Package " << I.Name() << " has broken dep on " << Start.TargetPkg().Name() << endl;
/* Look across the version list. If there are no possible
targets then we keep the package and bail. This is necessary
if a package has a dep on another package that cant be found */
- pkgCache::Version **VList = End.AllTargets();
+ pkgCache::Version **VList = Start.AllTargets();
if (*VList == 0 && (Flags[I->ID] & Protected) != Protected &&
- End->Type != pkgCache::Dep::Conflicts &&
+ Start->Type != pkgCache::Dep::Conflicts &&
Cache[I].NowBroken() == false)
{
Change = true;
@@ -763,10 +770,10 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
pkgCache::PkgIterator Pkg = Ver.ParentPkg();
if (Debug == true)
- clog << " Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] <<
+ clog << " Considering " << Pkg.Name() << ' ' << (int)Scores[Pkg->ID] <<
" as a solution to " << I.Name() << ' ' << (int)Scores[I->ID] << endl;
if (Scores[I->ID] <= Scores[Pkg->ID] ||
- ((Cache[End] & pkgDepCache::DepGNow) == 0 &&
+ ((Cache[Start] & pkgDepCache::DepNow) == 0 &&
End->Type != pkgCache::Dep::Conflicts))
{
// Try a little harder to fix protected packages..
@@ -783,17 +790,21 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
if (Cache[I].InstBroken() == false)
{
if (Debug == true)
- clog << " Holding Back " << I.Name() << " rather than change " << End.TargetPkg().Name() << endl;
+ clog << " Holding Back " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl;
}
else
- {
+ {
if (BrokenFix == false || DoUpgrade(I) == false)
{
- if (Debug == true)
- clog << " Removing " << I.Name() << " rather than change " << End.TargetPkg().Name() << endl;
- Cache.MarkDelete(I);
- if (Counter > 1)
- Scores[I->ID] = Scores[Pkg->ID];
+ // Consider other options
+ if (InOr == false)
+ {
+ if (Debug == true)
+ clog << " Removing " << I.Name() << " rather than change " << Start.TargetPkg().Name() << endl;
+ Cache.MarkDelete(I);
+ if (Counter > 1)
+ Scores[I->ID] = Scores[Pkg->ID];
+ }
}
}
@@ -811,25 +822,25 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
LEnd->Dep = End;
LEnd++;
- if (End->Type != pkgCache::Dep::Conflicts)
+ if (Start->Type != pkgCache::Dep::Conflicts)
break;
}
}
// Hm, nothing can possibly satisify this dep. Nuke it.
- if (VList[0] == 0 && End->Type != pkgCache::Dep::Conflicts &&
- (Flags[I->ID] & Protected) != Protected)
+ if (VList[0] == 0 && Start->Type != pkgCache::Dep::Conflicts &&
+ (Flags[I->ID] & Protected) != Protected && InOr == false)
{
Cache.MarkKeep(I);
if (Cache[I].InstBroken() == false)
{
if (Debug == true)
- clog << " Holding Back " << I.Name() << " because I can't find " << End.TargetPkg().Name() << endl;
+ clog << " Holding Back " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl;
}
else
{
if (Debug == true)
- clog << " Removing " << I.Name() << " because I can't find " << End.TargetPkg().Name() << endl;
+ clog << " Removing " << I.Name() << " because I can't find " << Start.TargetPkg().Name() << endl;
Cache.MarkDelete(I);
}
@@ -837,6 +848,10 @@ bool pkgProblemResolver::Resolve(bool BrokenFix)
Done = true;
}
+ // Try some more
+ if (InOr == true)
+ continue;
+
delete [] VList;
if (Done == true)
break;