+ // Check for reverse conflicts.
+ if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
+ InstallVer.VerStr()) == false)
+ return false;
+
+ List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
+ }
+
+ if(Install(Pkg,FileNames[Pkg->ID]) == false)
+ return false;
+
+ /* Because of the ordered list, most dependancies should be unpacked,
+ however if there is a loop this is not the case, so check for dependancies before configuring.
+ This is done after the package installation as it makes it easier to deal with conflicts problems */
+ bool Bad = true;
+ for (DepIterator D = instVer.DependsList();
+ D.end() == false; )
+ {
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start;
+ pkgCache::DepIterator End;
+ D.GlobOr(Start,End);
+
+ if (End->Type == pkgCache::Dep::Depends)
+ Bad = true;
+
+ // Check for dependanices that have not been unpacked, probably due to loops.
+ while (End->Type == pkgCache::Dep::Depends) {
+ PkgIterator DepPkg;
+ VerIterator InstallVer;
+ SPtrArray<Version *> VList = Start.AllTargets();
+
+ for (Version **I = VList; *I != 0; I++) {
+ VerIterator Ver(Cache,*I);
+ DepPkg = Ver.ParentPkg();
+
+ if (!Bad) continue;
+
+ InstallVer = VerIterator(Cache,Cache[DepPkg].InstallVer);
+ VerIterator CandVer(Cache,Cache[DepPkg].CandidateVer);
+
+ if (Debug && false) {
+ if (Ver==0) {
+ cout << " Checking if " << Ver << " of " << DepPkg.Name() << " satisfies this dependancy" << endl;
+ } else {
+ cout << " Checking if " << Ver.VerStr() << " of " << DepPkg.Name() << " satisfies this dependancy" << endl;
+ }
+
+ if (DepPkg.CurrentVer()==0) {
+ cout << " CurrentVer " << DepPkg.CurrentVer() << " IsNow " << List->IsNow(DepPkg) << " NeedsNothing " << (DepPkg.State() == PkgIterator::NeedsNothing) << endl;
+ } else {
+ cout << " CurrentVer " << DepPkg.CurrentVer().VerStr() << " IsNow " << List->IsNow(DepPkg) << " NeedsNothing " << (DepPkg.State() == PkgIterator::NeedsNothing) << endl;
+ }
+
+ if (InstallVer==0) {
+ cout << " InstallVer " << InstallVer << endl;
+ } else {
+ cout << " InstallVer " << InstallVer.VerStr() << endl;
+ }
+ if (CandVer != 0)
+ cout << " CandVer " << CandVer.VerStr() << endl;
+
+ cout << " Keep " << Cache[DepPkg].Keep() << " Unpacked " << List->IsFlag(DepPkg,pkgOrderList::UnPacked) << " Configured " << List->IsFlag(DepPkg,pkgOrderList::Configured) << endl;
+
+ }
+
+ // Check if it satisfies this dependancy
+ if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
+ DepPkg.State() == PkgIterator::NeedsNothing)
+ {
+ Bad = false;
+ continue;
+ }
+
+ if (Cache[DepPkg].InstallVer == *I && !List->IsNow(DepPkg)) {
+ Bad = false;
+ continue;
+ }
+ }
+
+ if (InstallVer != 0 && Bad) {
+ Bad = false;
+ // Found a break, so unpack the package
+ List->Flag(Pkg,pkgOrderList::Loop);
+ if (!List->IsFlag(DepPkg,pkgOrderList::Loop)) {
+ if (Debug)
+ cout << " Unpacking " << DepPkg.Name() << " to avoid loop" << endl;
+ SmartUnPack(DepPkg, false);
+ }
+ }
+
+ if (Start==End) {
+ if (Bad && Debug) {
+ if (!List->IsFlag(DepPkg,pkgOrderList::Loop)) {
+ _error->Warning("Could not satisfy dependancies for %s",Pkg.Name());
+ }
+ }
+ break;
+
+ } else {
+ Start++;
+ }
+ }
+ }
projects / apt.git / blobdiff