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-rw-r--r--cmdline/apt-get.cc43
1 files changed, 43 insertions, 0 deletions
diff --git a/cmdline/apt-get.cc b/cmdline/apt-get.cc
index 1211a3411..bc2f71c18 100644
--- a/cmdline/apt-get.cc
+++ b/cmdline/apt-get.cc
@@ -1659,6 +1659,7 @@ bool DoAutomaticRemove(CacheFile &Cache)
string autoremovelist, autoremoveversions;
unsigned long autoRemoveCount = 0;
+ APT::PackageSet tooMuch;
// look over the cache to see what can be removed
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); ! Pkg.end(); ++Pkg)
{
@@ -1681,7 +1682,10 @@ bool DoAutomaticRemove(CacheFile &Cache)
// if the package is a new install and already garbage we don't need to
// install it in the first place, so nuke it instead of show it
if (Cache[Pkg].Install() == true && Pkg.CurrentVer() == 0)
+ {
Cache->MarkDelete(Pkg, false);
+ tooMuch.insert(Pkg);
+ }
// only show stuff in the list that is not yet marked for removal
else if(hideAutoRemove == false && Cache[Pkg].Delete() == false)
{
@@ -1697,6 +1701,45 @@ bool DoAutomaticRemove(CacheFile &Cache)
}
}
+ // we could have removed a new dependency of a garbage package,
+ // so check if a reverse depends is broken and if so install it again.
+ if (tooMuch.empty() == false && Cache->BrokenCount() != 0)
+ {
+ bool Changed;
+ do {
+ Changed = false;
+ for (APT::PackageSet::const_iterator P = tooMuch.begin();
+ P != tooMuch.end() && Changed == false; ++P)
+ {
+ for (pkgCache::DepIterator R = P.RevDependsList();
+ R.end() == false; ++R)
+ {
+ if (R->Type != pkgCache::Dep::Depends &&
+ R->Type != pkgCache::Dep::PreDepends)
+ continue;
+ pkgCache::PkgIterator N = R.ParentPkg();
+ if (N.end() == true || N->CurrentVer == 0)
+ continue;
+ if (Debug == true)
+ std::clog << "Save " << P << " as another installed garbage package depends on it" << std::endl;
+ Cache->MarkInstall(P, false);
+ if(hideAutoRemove == false)
+ {
+ ++autoRemoveCount;
+ if (smallList == false)
+ {
+ autoremovelist += P.FullName(true) + " ";
+ autoremoveversions += string(Cache[P].CandVersion) + "\n";
+ }
+ }
+ tooMuch.erase(P);
+ Changed = true;
+ break;
+ }
+ }
+ } while (Changed == true);
+ }
+
// Now see if we had destroyed anything (if we had done anything)
if (Cache->BrokenCount() != 0)
{