summaryrefslogtreecommitdiff
path: root/apt-pkg/orderlist.cc
diff options
context:
space:
mode:
Diffstat (limited to 'apt-pkg/orderlist.cc')
-rw-r--r--apt-pkg/orderlist.cc72
1 files changed, 55 insertions, 17 deletions
diff --git a/apt-pkg/orderlist.cc b/apt-pkg/orderlist.cc
index a58efa987..80d7b6619 100644
--- a/apt-pkg/orderlist.cc
+++ b/apt-pkg/orderlist.cc
@@ -63,6 +63,8 @@
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include<config.h>
+
#include <apt-pkg/orderlist.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/error.h>
@@ -152,7 +154,7 @@ bool pkgOrderList::DoRun()
iterator OldEnd = End;
End = NList;
for (iterator I = List; I != OldEnd; ++I)
- if (VisitNode(PkgIterator(Cache,*I)) == false)
+ if (VisitNode(PkgIterator(Cache,*I), "DoRun") == false)
{
End = OldEnd;
return false;
@@ -495,33 +497,69 @@ bool pkgOrderList::VisitRProvides(DepFunc F,VerIterator Ver)
/*}}}*/
// OrderList::VisitProvides - Visit all of the providing packages /*{{{*/
// ---------------------------------------------------------------------
-/* This routine calls visit on all providing packages. */
+/* This routine calls visit on all providing packages.
+
+ If the dependency is negative it first visits packages which are
+ intended to be removed and after that all other packages.
+ It does so to avoid situations in which this package is used to
+ satisfy a (or-group/provides) dependency of another package which
+ could have been satisfied also by upgrading another package -
+ otherwise we have more broken packages dpkg needs to auto-
+ deconfigure and in very complicated situations it even decides
+ against it! */
bool pkgOrderList::VisitProvides(DepIterator D,bool Critical)
-{
+{
SPtrArray<Version *> List = D.AllTargets();
- for (Version **I = List; *I != 0; I++)
+ for (Version **I = List; *I != 0; ++I)
{
VerIterator Ver(Cache,*I);
PkgIterator Pkg = Ver.ParentPkg();
+ if (D.IsNegative() == true && Cache[Pkg].Delete() == false)
+ continue;
+
if (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)
continue;
-
+
if (D.IsNegative() == false &&
Cache[Pkg].InstallVer != *I)
continue;
-
+
if (D.IsNegative() == true &&
(Version *)Pkg.CurrentVer() != *I)
continue;
-
+
// Skip over missing files
if (Critical == false && IsMissing(D.ParentPkg()) == true)
continue;
- if (VisitNode(Pkg) == false)
+ if (VisitNode(Pkg, "Provides-1") == false)
return false;
}
+ if (D.IsNegative() == false)
+ return true;
+ for (Version **I = List; *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator Pkg = Ver.ParentPkg();
+
+ if (Cache[Pkg].Delete() == true)
+ continue;
+
+ if (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing)
+ continue;
+
+ if ((Version *)Pkg.CurrentVer() != *I)
+ continue;
+
+ // Skip over missing files
+ if (Critical == false && IsMissing(D.ParentPkg()) == true)
+ continue;
+
+ if (VisitNode(Pkg, "Provides-2") == false)
+ return false;
+ }
+
return true;
}
/*}}}*/
@@ -530,7 +568,7 @@ bool pkgOrderList::VisitProvides(DepIterator D,bool Critical)
/* This is the core ordering routine. It calls the set dependency
consideration functions which then potentialy call this again. Finite
depth is achived through the colouring mechinism. */
-bool pkgOrderList::VisitNode(PkgIterator Pkg)
+bool pkgOrderList::VisitNode(PkgIterator Pkg, char const* from)
{
// Looping or irrelevent.
// This should probably trancend not installed packages
@@ -541,7 +579,7 @@ bool pkgOrderList::VisitNode(PkgIterator Pkg)
if (Debug == true)
{
for (int j = 0; j != Depth; j++) clog << ' ';
- clog << "Visit " << Pkg.FullName() << endl;
+ clog << "Visit " << Pkg.FullName() << " from " << from << endl;
}
Depth++;
@@ -636,7 +674,7 @@ bool pkgOrderList::DepUnPackCrit(DepIterator D)
if (CheckDep(D) == true)
continue;
- if (VisitNode(D.ParentPkg()) == false)
+ if (VisitNode(D.ParentPkg(), "UnPackCrit") == false)
return false;
}
else
@@ -811,7 +849,7 @@ bool pkgOrderList::DepUnPackDep(DepIterator D)
if (IsMissing(D.ParentPkg()) == true)
continue;
- if (VisitNode(D.ParentPkg()) == false)
+ if (VisitNode(D.ParentPkg(), "UnPackDep-Parent") == false)
return false;
}
else
@@ -825,7 +863,7 @@ bool pkgOrderList::DepUnPackDep(DepIterator D)
if (CheckDep(D) == true)
continue;
- if (VisitNode(D.TargetPkg()) == false)
+ if (VisitNode(D.TargetPkg(), "UnPackDep-Target") == false)
return false;
}
}
@@ -924,7 +962,7 @@ bool pkgOrderList::DepRemove(DepIterator D)
if (IsFlag(P, InList) == true &&
IsFlag(P, AddPending) == false &&
Cache[P].InstallVer != 0 &&
- VisitNode(P) == true)
+ VisitNode(P, "Remove-P") == true)
{
Flag(P, Immediate);
tryFixDeps = false;
@@ -960,7 +998,7 @@ bool pkgOrderList::DepRemove(DepIterator D)
if (IsFlag(F.TargetPkg(), InList) == true &&
IsFlag(F.TargetPkg(), AddPending) == false &&
Cache[F.TargetPkg()].InstallVer != 0 &&
- VisitNode(F.TargetPkg()) == true)
+ VisitNode(F.TargetPkg(), "Remove-Target") == true)
{
Flag(F.TargetPkg(), Immediate);
tryFixDeps = false;
@@ -974,7 +1012,7 @@ bool pkgOrderList::DepRemove(DepIterator D)
if (IsFlag(Prv.OwnerPkg(), InList) == true &&
IsFlag(Prv.OwnerPkg(), AddPending) == false &&
Cache[Prv.OwnerPkg()].InstallVer != 0 &&
- VisitNode(Prv.OwnerPkg()) == true)
+ VisitNode(Prv.OwnerPkg(), "Remove-Owner") == true)
{
Flag(Prv.OwnerPkg(), Immediate);
tryFixDeps = false;
@@ -994,7 +1032,7 @@ bool pkgOrderList::DepRemove(DepIterator D)
if (IsMissing(D.ParentPkg()) == true)
continue;
- if (VisitNode(D.ParentPkg()) == false)
+ if (VisitNode(D.ParentPkg(), "Remove-Parent") == false)
return false;
}