Add basic support for the Protected field

This will be mapped to Important for the time being.

1 files changed, 14 insertions, 0 deletions

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index ef73881c8..c496538cc 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -1416,6 +1416,15 @@ static bool ItemIsEssential(pkgDPkgPM::Item const &I)
       return true;
    return (I.Pkg->Flags & pkgCache::Flag::Essential) != 0;
 }
+static bool ItemIsProtected(pkgDPkgPM::Item const &I)
+{
+   static auto const cachegen = _config->Find("pkgCacheGen::Protected");
+   if (cachegen == "none" || cachegen == "native")
+      return true;
+   if (unlikely(I.Pkg.end()))
+      return true;
+   return (I.Pkg->Flags & pkgCache::Flag::Important) != 0;
+}
 bool pkgDPkgPM::ExpandPendingCalls(std::vector<Item> &List, pkgDepCache &Cache)
 {
    {
@@ -1712,6 +1721,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
    OpenLog();
 
    bool dpkgMultiArch = _system->MultiArchSupported();
+   bool dpkgProtectedField = debSystem::AssertFeature("protected-field");
 
    // start pty magic before the loop
    StartPtyMagic();
@@ -1780,6 +1790,10 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
 	 {
 	    ADDARGC("--force-remove-essential");
 	 }
+	 if (dpkgProtectedField && std::any_of(I, J, ItemIsProtected))
+	 {
+	    ADDARGC("--force-remove-protected");
+	 }
 	 ADDARGC("--remove");
 	 break;