Adding upstream version 2.7.12.upstream/2.7.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 794 insertions, 0 deletions

diff --git a/apt-private/private-output.cc b/apt-private/private-output.cc
new file mode 100644
index 0000000..93b9424
--- /dev/null
+++ b/apt-private/private-output.cc
@@ -0,0 +1,794 @@
+// Include files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/pkgrecords.h>
+#include <apt-pkg/policy.h>
+#include <apt-pkg/strutl.h>
+
+#include <apt-private/private-cachefile.h>
+#include <apt-private/private-output.h>
+
+#include <csignal>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <iomanip>
+#include <iostream>
+#include <langinfo.h>
+#include <regex.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <sstream>
+
+#include <apti18n.h>
+									/*}}}*/
+
+using namespace std;
+
+std::ostream c0out(0);
+std::ostream c1out(0);
+std::ostream c2out(0);
+std::ofstream devnull("/dev/null");
+
+
+unsigned int ScreenWidth = 80 - 1; /* - 1 for the cursor */
+
+// SigWinch - Window size change signal handler				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static void SigWinch(int)
+{
+   // Riped from GNU ls
+#ifdef TIOCGWINSZ
+   struct winsize ws;
+  
+   if (ioctl(1, TIOCGWINSZ, &ws) != -1 && ws.ws_col >= 5)
+      ScreenWidth = ws.ws_col - 1;
+#endif
+}
+									/*}}}*/
+bool InitOutput(std::basic_streambuf<char> * const out)			/*{{{*/
+{
+   if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1)
+      _config->Set("quiet","1");
+
+   c0out.rdbuf(out);
+   c1out.rdbuf(out);
+   c2out.rdbuf(out);
+   if (_config->FindI("quiet",0) > 0)
+      c0out.rdbuf(devnull.rdbuf());
+   if (_config->FindI("quiet",0) > 1)
+      c1out.rdbuf(devnull.rdbuf());
+
+   // deal with window size changes
+   auto cols = getenv("COLUMNS");
+   if (cols != nullptr)
+   {
+      char * colends;
+      auto const sw = strtoul(cols, &colends, 10);
+      if (*colends != '\0' || sw == 0)
+      {
+	 _error->Warning("Environment variable COLUMNS was ignored as it has an invalid value: \"%s\"", cols);
+	 cols = nullptr;
+      }
+      else
+	 ScreenWidth = sw;
+   }
+   if (cols == nullptr)
+   {
+      signal(SIGWINCH,SigWinch);
+      SigWinch(0);
+   }
+
+   if (isatty(STDOUT_FILENO) == 0 || not _config->FindB("APT::Color", true) || getenv("NO_COLOR") != nullptr)
+   {
+      _config->Set("APT::Color", false);
+      _config->Set("APT::Color::Highlight", "");
+      _config->Set("APT::Color::Neutral", "");
+   } else {
+      // Colors
+      _config->CndSet("APT::Color::Highlight", "\x1B[32m");
+      _config->CndSet("APT::Color::Neutral", "\x1B[0m");
+      
+      _config->CndSet("APT::Color::Red", "\x1B[31m");
+      _config->CndSet("APT::Color::Green", "\x1B[32m");
+      _config->CndSet("APT::Color::Yellow", "\x1B[33m");
+      _config->CndSet("APT::Color::Blue", "\x1B[34m");
+      _config->CndSet("APT::Color::Magenta", "\x1B[35m");
+      _config->CndSet("APT::Color::Cyan", "\x1B[36m");
+      _config->CndSet("APT::Color::White", "\x1B[37m");
+   }
+
+   return true;
+}
+									/*}}}*/
+static std::string GetArchiveSuite(pkgCacheFile &/*CacheFile*/, pkgCache::VerIterator ver) /*{{{*/
+{
+   std::string suite = "";
+   if (ver && ver.FileList())
+   {
+      pkgCache::VerFileIterator VF = ver.FileList();
+      for (; VF.end() == false ; ++VF)
+      {
+         if(VF.File() == NULL || VF.File().Archive() == NULL)
+            suite = suite + "," + _("unknown");
+         else
+            suite = suite + "," + VF.File().Archive();
+         //suite = VF.File().Archive();
+      }
+      suite = suite.erase(0, 1);
+   }
+   return suite;
+}
+									/*}}}*/
+static std::string GetFlagsStr(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
+{
+   pkgDepCache *DepCache = CacheFile.GetDepCache();
+   pkgDepCache::StateCache &state = (*DepCache)[P];
+
+   std::string flags_str;
+   if (state.NowBroken())
+      flags_str = "B";
+   if (P.CurrentVer() && state.Upgradable() && state.CandidateVer != NULL)
+      flags_str = "g";
+   else if (P.CurrentVer() != NULL)
+      flags_str = "i";
+   else
+      flags_str = "-";
+   return flags_str;
+}
+									/*}}}*/
+static std::string GetCandidateVersion(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
+{
+   pkgPolicy *policy = CacheFile.GetPolicy();
+   pkgCache::VerIterator cand = policy->GetCandidateVer(P);
+
+   return cand ? cand.VerStr() : "(none)";
+}
+									/*}}}*/
+static std::string GetInstalledVersion(pkgCacheFile &/*CacheFile*/, pkgCache::PkgIterator P)/*{{{*/
+{
+   pkgCache::VerIterator inst = P.CurrentVer();
+
+   return inst ? inst.VerStr() : "(none)";
+}
+									/*}}}*/
+static std::string GetVersion(pkgCacheFile &/*CacheFile*/, pkgCache::VerIterator V)/*{{{*/
+{
+   pkgCache::PkgIterator P = V.ParentPkg();
+   if (V == P.CurrentVer())
+   {
+      std::string inst_str = DeNull(V.VerStr());
+#if 0 // FIXME: do we want this or something like this?
+      pkgDepCache *DepCache = CacheFile.GetDepCache();
+      pkgDepCache::StateCache &state = (*DepCache)[P];
+      if (state.Upgradable())
+         return "**"+inst_str;
+#endif
+      return inst_str;
+   }
+
+   if(V)
+      return DeNull(V.VerStr());
+   return "(none)";
+}
+									/*}}}*/
+static std::string GetArchitecture(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
+{
+   if (P->CurrentVer == 0)
+   {
+      pkgDepCache * const DepCache = CacheFile.GetDepCache();
+      pkgDepCache::StateCache const &state = (*DepCache)[P];
+      if (state.CandidateVer != NULL)
+      {
+	 pkgCache::VerIterator const CandV(CacheFile, state.CandidateVer);
+	 return CandV.Arch();
+      }
+      else
+      {
+	 pkgCache::VerIterator const V = P.VersionList();
+	 if (V.end() == false)
+	    return V.Arch();
+	 else
+	    return P.Arch();
+      }
+   }
+   else
+      return P.CurrentVer().Arch();
+}
+									/*}}}*/
+static std::string GetShortDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/
+{
+   pkgPolicy *policy = CacheFile.GetPolicy();
+
+   pkgCache::VerIterator ver;
+   if (P.CurrentVer())
+      ver = P.CurrentVer();
+   else
+      ver = policy->GetCandidateVer(P);
+
+   std::string ShortDescription = "(none)";
+   if(ver)
+   {
+      pkgCache::DescIterator const Desc = ver.TranslatedDescription();
+      if (Desc.end() == false)
+      {
+	 pkgRecords::Parser & parser = records.Lookup(Desc.FileList());
+	 ShortDescription = parser.ShortDesc();
+      }
+   }
+   return ShortDescription;
+}
+									/*}}}*/
+static std::string GetLongDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/
+{
+   pkgPolicy *policy = CacheFile.GetPolicy();
+
+   pkgCache::VerIterator ver;
+   if (P->CurrentVer != 0)
+      ver = P.CurrentVer();
+   else
+      ver = policy->GetCandidateVer(P);
+
+   std::string const EmptyDescription = "(none)";
+   if(ver.end() == true)
+      return EmptyDescription;
+
+   pkgCache::DescIterator const Desc = ver.TranslatedDescription();
+   if (Desc.end() == false)
+   {
+      pkgRecords::Parser & parser = records.Lookup(Desc.FileList());
+      std::string const longdesc = parser.LongDesc();
+      if (longdesc.empty() == false)
+	 return SubstVar(longdesc, "\n ", "\n  ");
+   }
+   return EmptyDescription;
+}
+									/*}}}*/
+void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,	/*{{{*/
+                       pkgCache::VerIterator const &V, std::ostream &out,
+                       std::string const &format)
+{
+   pkgCache::PkgIterator const P = V.ParentPkg();
+   pkgDepCache * const DepCache = CacheFile.GetDepCache();
+   pkgDepCache::StateCache const &state = (*DepCache)[P];
+
+   std::string output;
+   if (_config->FindB("APT::Cmd::use-format", false))
+      output = _config->Find("APT::Cmd::format", "${db::Status-Abbrev} ${Package} ${Version} ${Origin} ${Description}");
+   else
+      output = format;
+
+   // FIXME: some of these names are really icky – and all is nowhere documented
+   output = SubstVar(output, "${db::Status-Abbrev}", GetFlagsStr(CacheFile, P));
+   output = SubstVar(output, "${Package}", P.Name());
+   std::string const ArchStr = GetArchitecture(CacheFile, P);
+   output = SubstVar(output, "${Architecture}", ArchStr);
+   std::string const InstalledVerStr = GetInstalledVersion(CacheFile, P);
+   output = SubstVar(output, "${installed:Version}", InstalledVerStr);
+   std::string const CandidateVerStr = GetCandidateVersion(CacheFile, P);
+   output = SubstVar(output, "${candidate:Version}", CandidateVerStr);
+   std::string const VersionStr = GetVersion(CacheFile, V);
+   output = SubstVar(output, "${Version}", VersionStr);
+   output = SubstVar(output, "${Origin}", GetArchiveSuite(CacheFile, V));
+
+   std::string StatusStr = "";
+   if (P->CurrentVer != 0)
+   {
+      if (P.CurrentVer() == V)
+      {
+	 if (state.Upgradable() && state.CandidateVer != NULL)
+	    strprintf(StatusStr, _("[installed,upgradable to: %s]"),
+		  CandidateVerStr.c_str());
+	 else if (V.Downloadable() == false)
+	    StatusStr = _("[installed,local]");
+	 else if(V.Automatic() == true && state.Garbage == true)
+	    StatusStr = _("[installed,auto-removable]");
+	 else if ((state.Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
+	    StatusStr = _("[installed,automatic]");
+	 else
+	    StatusStr = _("[installed]");
+      }
+      else if (state.CandidateVer == V && state.Upgradable())
+	 strprintf(StatusStr, _("[upgradable from: %s]"),
+	       InstalledVerStr.c_str());
+   }
+   else if (V.ParentPkg()->CurrentState == pkgCache::State::ConfigFiles)
+      StatusStr = _("[residual-config]");
+   output = SubstVar(output, "${apt:Status}", StatusStr);
+   output = SubstVar(output, "${color:highlight}", _config->Find("APT::Color::Highlight", ""));
+   output = SubstVar(output, "${color:neutral}", _config->Find("APT::Color::Neutral", ""));
+   output = SubstVar(output, "${Description}", GetShortDescription(CacheFile, records, P));
+   if (output.find("${LongDescription}") != string::npos)
+      output = SubstVar(output, "${LongDescription}", GetLongDescription(CacheFile, records, P));
+   output = SubstVar(output, "${ }${ }", "${ }");
+   output = SubstVar(output, "${ }\n", "\n");
+   output = SubstVar(output, "${ }", " ");
+   if (APT::String::Endswith(output, " ") == true)
+      output.erase(output.length() - 1);
+
+   out << output;
+}
+									/*}}}*/
+// ShowBroken - Debugging aide						/*{{{*/
+// ---------------------------------------------------------------------
+/* This prints out the names of all the packages that are broken along
+   with the name of each broken dependency and a quite version
+   description.
+
+   The output looks like:
+ The following packages have unmet dependencies:
+     exim: Depends: libc6 (>= 2.1.94) but 2.1.3-10 is to be installed
+           Depends: libldap2 (>= 2.0.2-2) but it is not going to be installed
+           Depends: libsasl7 but it is not going to be installed
+ */
+static void ShowBrokenPackage(ostream &out, pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg, bool const Now)
+{
+   if (Now == true)
+   {
+      if ((*Cache)[Pkg].NowBroken() == false)
+	 return;
+   }
+   else
+   {
+      if ((*Cache)[Pkg].InstBroken() == false)
+	 return;
+   }
+
+   // Print out each package and the failed dependencies
+   out << " " << Pkg.FullName(true) << " :";
+   unsigned const Indent = Pkg.FullName(true).size() + 3;
+   bool First = true;
+   pkgCache::VerIterator Ver;
+
+   if (Now == true)
+      Ver = Pkg.CurrentVer();
+   else
+      Ver = (*Cache)[Pkg].InstVerIter(*Cache);
+
+   if (Ver.end() == true)
+   {
+      out << endl;
+      return;
+   }
+
+   for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false;)
+   {
+      // Compute a single dependency element (glob or)
+      pkgCache::DepIterator Start;
+      pkgCache::DepIterator End;
+      D.GlobOr(Start,End); // advances D
+
+      if ((*Cache)->IsImportantDep(End) == false)
+	 continue;
+
+      if (Now == true)
+      {
+	 if (((*Cache)[End] & pkgDepCache::DepGNow) == pkgDepCache::DepGNow)
+	    continue;
+      }
+      else
+      {
+	 if (((*Cache)[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall)
+	    continue;
+      }
+
+      bool FirstOr = true;
+      while (1)
+      {
+	 if (First == false)
+	    for (unsigned J = 0; J != Indent; J++)
+	       out << ' ';
+	 First = false;
+
+	 if (FirstOr == false)
+	 {
+	    for (unsigned J = 0; J != strlen(End.DepType()) + 3; J++)
+	       out << ' ';
+	 }
+	 else
+	    out << ' ' << End.DepType() << ": ";
+	 FirstOr = false;
+
+	 out << Start.TargetPkg().FullName(true);
+
+	 // Show a quick summary of the version requirements
+	 if (Start.TargetVer() != 0)
+	    out << " (" << Start.CompType() << " " << Start.TargetVer() << ")";
+
+	 /* Show a summary of the target package if possible. In the case
+	    of virtual packages we show nothing */
+	 pkgCache::PkgIterator Targ = Start.TargetPkg();
+	 if (Targ->ProvidesList == 0)
+	 {
+	    out << ' ';
+	    pkgCache::VerIterator Ver = (*Cache)[Targ].InstVerIter(*Cache);
+	    if (Now == true)
+	       Ver = Targ.CurrentVer();
+
+	    if (Ver.end() == false)
+	    {
+	       if (Now == true)
+		  ioprintf(out,_("but %s is installed"),Ver.VerStr());
+	       else
+		  ioprintf(out,_("but %s is to be installed"),Ver.VerStr());
+	    }
+	    else
+	    {
+	       if ((*Cache)[Targ].CandidateVerIter(*Cache).end() == true)
+	       {
+		  if (Targ->ProvidesList == 0)
+		     out << _("but it is not installable");
+		  else
+		     out << _("but it is a virtual package");
+	       }
+	       else
+		  out << (Now?_("but it is not installed"):_("but it is not going to be installed"));
+	    }
+	 }
+
+	 if (Start != End)
+	    out << _(" or");
+	 out << endl;
+
+	 if (Start == End)
+	    break;
+	 ++Start;
+      }
+   }
+}
+void ShowBroken(ostream &out, CacheFile &Cache, bool const Now)
+{
+   if (Cache->BrokenCount() == 0)
+      return;
+
+   out << _("The following packages have unmet dependencies:") << endl;
+   SortedPackageUniverse Universe(Cache);
+   for (auto const &Pkg: Universe)
+      ShowBrokenPackage(out, &Cache, Pkg, Now);
+}
+void ShowBroken(ostream &out, pkgCacheFile &Cache, bool const Now)
+{
+   if (Cache->BrokenCount() == 0)
+      return;
+
+   out << _("The following packages have unmet dependencies:") << endl;
+   APT::PackageUniverse Universe(Cache);
+   for (auto const &Pkg: Universe)
+      ShowBrokenPackage(out, &Cache, Pkg, Now);
+}
+									/*}}}*/
+// ShowNew - Show packages to newly install				/*{{{*/
+void ShowNew(ostream &out,CacheFile &Cache)
+{
+   SortedPackageUniverse Universe(Cache);
+   ShowList(out,_("The following NEW packages will be installed:"), Universe,
+	 [&Cache](pkgCache::PkgIterator const &Pkg) { return Cache[Pkg].NewInstall(); },
+	 &PrettyFullName,
+	 CandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowDel - Show packages to delete					/*{{{*/
+void ShowDel(ostream &out,CacheFile &Cache)
+{
+   SortedPackageUniverse Universe(Cache);
+   ShowList(out,_("The following packages will be REMOVED:"), Universe,
+	 [&Cache](pkgCache::PkgIterator const &Pkg) { return Cache[Pkg].Delete(); },
+	 [&Cache](pkgCache::PkgIterator const &Pkg)
+	 {
+	    std::string str = PrettyFullName(Pkg);
+	    if (((*Cache)[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge)
+	       str.append("*");
+	    return str;
+	 },
+	 CandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowPhasing - Show packages kept due to phasing			/*{{{*/
+void ShowPhasing(ostream &out, CacheFile &Cache, APT::PackageVector const &HeldBackPackages)
+{
+   SortedPackageUniverse Universe(Cache);
+   ShowList(out, _("The following upgrades have been deferred due to phasing:"), HeldBackPackages,
+	    &AlwaysTrue,
+	    &PrettyFullName,
+	    CurrentToCandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowKept - Show kept packages					/*{{{*/
+void ShowKept(ostream &out,CacheFile &Cache, APT::PackageVector const &HeldBackPackages)
+{
+   SortedPackageUniverse Universe(Cache);
+   ShowList(out,_("The following packages have been kept back:"), HeldBackPackages,
+	 &AlwaysTrue,
+	 &PrettyFullName,
+	 CurrentToCandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowUpgraded - Show upgraded packages				/*{{{*/
+void ShowUpgraded(ostream &out,CacheFile &Cache)
+{
+   SortedPackageUniverse Universe(Cache);
+   ShowList(out,_("The following packages will be upgraded:"), Universe,
+	 [&Cache](pkgCache::PkgIterator const &Pkg)
+	 {
+	    return Cache[Pkg].Upgrade() == true && Cache[Pkg].NewInstall() == false;
+	 },
+	 &PrettyFullName,
+	 CurrentToCandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowDowngraded - Show downgraded packages				/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool ShowDowngraded(ostream &out,CacheFile &Cache)
+{
+   SortedPackageUniverse Universe(Cache);
+   return ShowList(out,_("The following packages will be DOWNGRADED:"), Universe,
+	 [&Cache](pkgCache::PkgIterator const &Pkg)
+	 {
+	    return Cache[Pkg].Downgrade() == true && Cache[Pkg].NewInstall() == false;
+	 },
+	 &PrettyFullName,
+	 CurrentToCandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowHold - Show held but changed packages				/*{{{*/
+bool ShowHold(ostream &out,CacheFile &Cache)
+{
+   SortedPackageUniverse Universe(Cache);
+   return ShowList(out,_("The following held packages will be changed:"), Universe,
+	 [&Cache](pkgCache::PkgIterator const &Pkg)
+	 {
+	    return Pkg->SelectedState == pkgCache::State::Hold &&
+		   Cache[Pkg].InstallVer != (pkgCache::Version *)Pkg.CurrentVer();
+	 },
+	 &PrettyFullName,
+	 CurrentToCandidateVersion(&Cache));
+}
+									/*}}}*/
+// ShowEssential - Show an essential package warning			/*{{{*/
+// ---------------------------------------------------------------------
+/* This prints out a warning message that is not to be ignored. It shows
+   all essential packages and their dependents that are to be removed.
+   It is insanely risky to remove the dependents of an essential package! */
+struct APT_HIDDEN PrettyFullNameWithDue {
+   std::map<unsigned long long, pkgCache::PkgIterator> due;
+   PrettyFullNameWithDue() {}
+   std::string operator() (pkgCache::PkgIterator const &Pkg)
+   {
+      std::string const A = PrettyFullName(Pkg);
+      std::map<unsigned long long, pkgCache::PkgIterator>::const_iterator d = due.find(Pkg->ID);
+      if (d == due.end())
+        return A;
+
+      std::string const B = PrettyFullName(d->second);
+      std::ostringstream outstr;
+      ioprintf(outstr, _("%s (due to %s)"), A.c_str(), B.c_str());
+      return outstr.str();
+   }
+};
+bool ShowEssential(ostream &out,CacheFile &Cache)
+{
+   std::vector<bool> Added(Cache->Head().PackageCount, false);
+   APT::PackageDeque pkglist;
+   PrettyFullNameWithDue withdue;
+
+   SortedPackageUniverse Universe(Cache);
+   for (pkgCache::PkgIterator const &I: Universe)
+   {
+      if ((I->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential &&
+	  (I->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important)
+	 continue;
+
+      // The essential package is being removed
+      if (Cache[I].Delete() == false)
+	 continue;
+
+      if (Added[I->ID] == false)
+      {
+	 Added[I->ID] = true;
+	 pkglist.insert(I);
+      }
+
+      if (I->CurrentVer == 0)
+	 continue;
+
+      // Print out any essential package depenendents that are to be removed
+      for (pkgCache::DepIterator D = I.CurrentVer().DependsList(); D.end() == false; ++D)
+      {
+	 // Skip everything but depends
+	 if (D->Type != pkgCache::Dep::PreDepends &&
+	     D->Type != pkgCache::Dep::Depends)
+	    continue;
+
+	 pkgCache::PkgIterator P = D.SmartTargetPkg();
+	 if (Cache[P].Delete() == true)
+	 {
+	    if (Added[P->ID] == true)
+	       continue;
+	    Added[P->ID] = true;
+
+	    pkglist.insert(P);
+	    withdue.due[P->ID] = I;
+	 }
+      }
+   }
+   return ShowList(out,_("WARNING: The following essential packages will be removed.\n"
+			 "This should NOT be done unless you know exactly what you are doing!"),
+	 pkglist, &AlwaysTrue, withdue, &EmptyString);
+}
+									/*}}}*/
+// Stats - Show some statistics						/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void Stats(ostream &out, pkgDepCache &Dep, APT::PackageVector const &HeldBackPackages)
+{
+   unsigned long Upgrade = 0;
+   unsigned long Downgrade = 0;
+   unsigned long Install = 0;
+   unsigned long ReInstall = 0;
+   for (pkgCache::PkgIterator I = Dep.PkgBegin(); I.end() == false; ++I)
+   {
+      if (Dep[I].NewInstall() == true)
+	 Install++;
+      else
+      {
+	 if (Dep[I].Upgrade() == true)
+	    Upgrade++;
+	 else
+	    if (Dep[I].Downgrade() == true)
+	       Downgrade++;
+      }
+      
+      if (Dep[I].Delete() == false && (Dep[I].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)
+	 ReInstall++;
+   }   
+
+   ioprintf(out,_("%lu upgraded, %lu newly installed, "),
+	    Upgrade,Install);
+   
+   if (ReInstall != 0)
+      ioprintf(out,_("%lu reinstalled, "),ReInstall);
+   if (Downgrade != 0)
+      ioprintf(out,_("%lu downgraded, "),Downgrade);
+
+   ioprintf(out,_("%lu to remove and %lu not upgraded.\n"),
+	    Dep.DelCount(), HeldBackPackages.size());
+   
+   if (Dep.BadCount() != 0)
+      ioprintf(out,_("%lu not fully installed or removed.\n"),
+	       Dep.BadCount());
+}
+									/*}}}*/
+// YnPrompt - Yes No Prompt.						/*{{{*/
+// ---------------------------------------------------------------------
+/* Returns true on a Yes.*/
+bool YnPrompt(char const * const Question, bool const Default, bool const ShowGlobalErrors, std::ostream &c1o, std::ostream &c2o)
+{
+   auto const AssumeYes = _config->FindB("APT::Get::Assume-Yes",false);
+   auto const AssumeNo = _config->FindB("APT::Get::Assume-No",false);
+   // if we ask interactively, show warnings/notices before the question
+   if (ShowGlobalErrors == true && AssumeYes == false && AssumeNo == false)
+   {
+      if (_config->FindI("quiet",0) > 0)
+	 _error->DumpErrors(c2o);
+      else
+	 _error->DumpErrors(c2o, GlobalError::DEBUG);
+   }
+
+   c2o << Question << std::flush;
+
+   /* nl_langinfo does not support LANGUAGE setting, so we unset it here
+      to have the help-message (hopefully) match the expected characters */
+   char * language = getenv("LANGUAGE");
+   if (language != NULL)
+      language = strdup(language);
+   if (language != NULL)
+      unsetenv("LANGUAGE");
+
+   if (Default == true)
+      // TRANSLATOR: Yes/No question help-text: defaulting to Y[es]
+      //             e.g. "Do you want to continue? [Y/n] "
+      //             The user has to answer with an input matching the
+      //             YESEXPR/NOEXPR defined in your l10n.
+      c2o << " " << _("[Y/n]") << " " << std::flush;
+   else
+      // TRANSLATOR: Yes/No question help-text: defaulting to N[o]
+      //             e.g. "Should this file be removed? [y/N] "
+      //             The user has to answer with an input matching the
+      //             YESEXPR/NOEXPR defined in your l10n.
+      c2o << " " << _("[y/N]") << " " << std::flush;
+
+   if (language != NULL)
+   {
+      setenv("LANGUAGE", language, 0);
+      free(language);
+   }
+
+   if (AssumeYes)
+   {
+      // TRANSLATOR: "Yes" answer printed for a yes/no question if --assume-yes is set
+      c1o << _("Y") << std::endl;
+      return true;
+   }
+   else if (AssumeNo)
+   {
+      // TRANSLATOR: "No" answer printed for a yes/no question if --assume-no is set
+      c1o << _("N") << std::endl;
+      return false;
+   }
+
+   char response[1024] = "";
+   std::cin.getline(response, sizeof(response));
+
+   if (!std::cin)
+      return false;
+
+   if (strlen(response) == 0)
+      return Default;
+
+   regex_t Pattern;
+   int Res;
+
+   Res = regcomp(&Pattern, nl_langinfo(YESEXPR),
+                 REG_EXTENDED|REG_ICASE|REG_NOSUB);
+
+   if (Res != 0) {
+      char Error[300];
+      regerror(Res,&Pattern,Error,sizeof(Error));
+      return _error->Error(_("Regex compilation error - %s"),Error);
+   }
+
+   Res = regexec(&Pattern, response, 0, NULL, 0);
+   if (Res == 0)
+      return true;
+   return false;
+}
+bool YnPrompt(char const * const Question, bool const Default)
+{
+   return YnPrompt(Question, Default, true, c1out, c2out);
+}
+									/*}}}*/
+
+std::string PrettyFullName(pkgCache::PkgIterator const &Pkg)
+{
+   return Pkg.FullName(true);
+}
+std::string CandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg)
+{
+   return (*Cache)[Pkg].CandVersion;
+}
+std::function<std::string(pkgCache::PkgIterator const &)> CandidateVersion(pkgCacheFile * const Cache)
+{
+   return std::bind(static_cast<std::string(*)(pkgCacheFile * const, pkgCache::PkgIterator const&)>(&CandidateVersion), Cache, std::placeholders::_1);
+}
+std::string CurrentToCandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg)
+{
+   std::string const CurVer = (*Cache)[Pkg].CurVersion;
+   std::string CandVer = (*Cache)[Pkg].CandVersion;
+   if (CurVer == CandVer)
+   {
+      auto const CandVerIter = Cache->GetPolicy()->GetCandidateVer(Pkg);
+      if (not CandVerIter.end())
+	 CandVer = CandVerIter.VerStr();
+   }
+   return  CurVer + " => " + CandVer;
+}
+std::function<std::string(pkgCache::PkgIterator const &)> CurrentToCandidateVersion(pkgCacheFile * const Cache)
+{
+   return std::bind(static_cast<std::string(*)(pkgCacheFile * const, pkgCache::PkgIterator const&)>(&CurrentToCandidateVersion), Cache, std::placeholders::_1);
+}
+bool AlwaysTrue(pkgCache::PkgIterator const &)
+{
+      return true;
+}
+std::string EmptyString(pkgCache::PkgIterator const &)
+{
+   return std::string();
+}