-
-// pkgMarkPkgUsed - Mark used packages as dirty /*{{{*/
-// ---------------------------------------------------------------------
-/* Mark all reachable packages as dirty. */
-void pkgMarkPkgUsed(pkgDepCache &Cache, pkgCache::PkgIterator Pkg,
- pkgCache::State::PkgRemoveState DirtLevel)
-{
- // If it is not installed, and we are in manual mode, ignore it
- if ((Pkg->CurrentVer == 0 && Cache[Pkg].Install() == false || Cache[Pkg].Delete() == true) &&
- DirtLevel == pkgCache::State::RemoveManual)
- {
-// fprintf(stdout,"This one is not installed/virtual %s %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
- return;
- }
-
- // If it is not installed, and it is not virtual, ignore it
- if ((Pkg->CurrentVer == 0 && Cache[Pkg].Install() == false || Cache[Pkg].Delete() == true) &&
- Pkg->VersionList != 0)
- {
-// fprintf(stdout,"This one is not installed %s %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
- return;
- }
-
- // If it is similar or more dirty than we are ;-), because we've been here already, don't mark it
- // This is necessary because virtual packages just relay the current level,
- // so it may be possible e.g. that this was already seen with ::RemoveSuggested, but
- // we are ::RemoveRequired
- if (Cache[Pkg].Dirty() >= DirtLevel)
- {
- //fprintf(stdout,"Seen already %s %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
- return;
- }
-
- // If it is less important than the current DirtLevel, don't mark it
- if (Cache[Pkg].AutomaticRemove != pkgCache::State::RemoveManual &&
- Cache[Pkg].AutomaticRemove > DirtLevel)
- {
-// fprintf(stdout,"We don't need %s %d %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel, Cache[Pkg].Dirty());
- return;
- }
-
- // Mark it as used
- Cache.SetDirty(Pkg, DirtLevel);
-
- //fprintf(stdout,"We keep %s %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
-
- // We are a virtual package
- if (Pkg->VersionList == 0)
- {
-// fprintf(stdout,"We are virtual %s %d %d\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
- for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); ! Prv.end(); ++Prv)
- pkgMarkPkgUsed (Cache, Prv.OwnerPkg(), DirtLevel);
- return;
- }
-
- // Depending on the type of dependency, follow it
- for (pkgCache::DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); ! D.end(); ++D)
- {
-// fprintf(stdout,"We depend on %s %s\n", D.TargetPkg().Name(), D.DepType());
-
- switch(D->Type)
- {
- case pkgCache::Dep::Depends:
- case pkgCache::Dep::PreDepends:
- pkgMarkPkgUsed (Cache, D.TargetPkg(), pkgCache::State::RemoveRequired);
- break;
- case pkgCache::Dep::Recommends:
- pkgMarkPkgUsed (Cache, D.TargetPkg(), pkgCache::State::RemoveRecommended);
- break;
- case pkgCache::Dep::Suggests:
- pkgMarkPkgUsed (Cache, D.TargetPkg(), pkgCache::State::RemoveSuggested);
- break;
- case pkgCache::Dep::Conflicts:
- case pkgCache::Dep::Replaces:
- case pkgCache::Dep::Obsoletes:
- // We don't handle these here
- break;
- }
- }
-// fprintf(stdout,"We keep %s %d %d <END>\n", Pkg.Name(), Pkg->AutomaticRemove, DirtLevel);
-}
- /*}}}*/
-
-bool pkgMarkUsed(pkgDepCache &Cache)
-{
- // debug only
- for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); ! Pkg.end(); ++Pkg)
- if(!Cache[Pkg].Dirty() && Cache[Pkg].AutomaticRemove > 0)
- std::cout << "has auto-remove information: " << Pkg.Name()
- << " " << (int)Cache[Pkg].AutomaticRemove
- << std::endl;
-
- // init with defaults
- for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); ! Pkg.end(); ++Pkg)
- Cache.SetDirty(Pkg, pkgCache::State::RemoveUnknown);
-
- // go recursive over the cache
- for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); ! Pkg.end(); ++Pkg)
- pkgMarkPkgUsed (Cache, Pkg, pkgCache::State::RemoveManual);
-
-
- return true;
-}
projects / apt.git / blobdiff