use Pkg.FullName() in disappearedPkgs and remove duplicated check

apt-pkg/deb/dpkgpm.cc

@@ -550,16 +550,6 @@ void pkgDPkgPM::ProcessDpkgStatusLine(char *line)
    {
       pkgname = APT::String::Strip(list[2]);
       action = APT::String::Strip(list[1]);
-
-      // this is what we support in the processing stage
-      if(action != "install" && action != "configure" &&
-         action != "remove" && action != "purge" && action != "purge")
-      {
-         if (Debug == true)
-            std::clog << "ignoring processing action: '" << action
-                      << "'" << std::endl;
-         return;
-      }
    }
    // "status" has the form: "status: pkg: state"
    // with state in ["half-installed", "unpacked", "half-configured", 
@@ -696,6 +686,7 @@ void pkgDPkgPM::handleDisappearAction(string const &pkgname)
    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (unlikely(Pkg.end() == true))
       return;
+
    // the disappeared package was auto-installed - nothing to do
    if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
       return;
@@ -1218,7 +1209,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
 	 {
 	    if((*I).Pkg.end() == true)
 	       continue;
-	    if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end())
+	    if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.FullName()) != disappearedPkgs.end())
 	       continue;
 	    // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
 	    if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch ||

test/integration/test-disappearing-packages

@@ -40,7 +40,7 @@ echo "The following package disappeared from your system as
 all files have been overwritten by other packages:
   old-pkg
 Note: This is done automatically and on purpose by dpkg." > $COMPAREFILE
-$CMD 2>&1 | tail -n 4 | diff $COMPAREFILE - && msgpass || msgfail
+$CMD 2>&1 | tail -n 4 | diff -u $COMPAREFILE - && msgpass || msgfail
 rm $COMPAREFILE
 
 sed -i rootdir/var/log/apt/history.log -e '/^Commandline: / d' -e '/^Start-Date: / d' -e '/^End-Date: / d' -e "s#:$(getarchitecture 'native') #:native #"