squash merge of the feature/apt-binary branch without the changes from experimental

1 files changed, 852 insertions, 0 deletions

diff --git a/apt-private/private-install.cc b/apt-private/private-install.cc
new file mode 100644
index 000000000..d5052fcc0
--- /dev/null
+++ b/apt-private/private-install.cc
@@ -0,0 +1,852 @@
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/cmndline.h>
+#include <apt-pkg/init.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/algorithms.h>
+#include <apt-pkg/acquire-item.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/clean.h>
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/version.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/sptr.h>
+#include <apt-pkg/md5.h>
+#include <apt-pkg/versionmatch.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/pkgrecords.h>
+#include <apt-pkg/indexfile.h>
+
+#include <set>
+#include <locale.h>
+#include <langinfo.h>
+#include <fstream>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+#include <sys/statvfs.h>
+#include <signal.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <regex.h>
+#include <sys/wait.h>
+#include <sstream>
+
+#include "private-install.h"
+#include "private-cachefile.h"
+#include "private-output.h"
+#include "private-cacheset.h"
+#include "acqprogress.h"
+
+#include <apti18n.h>
+									/*}}}*/
+
+// CheckAuth - check if each download comes form a trusted source	/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static bool CheckAuth(pkgAcquire& Fetcher)
+{
+   std::string UntrustedList;
+   for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd(); ++I)
+   {
+      if (!(*I)->IsTrusted())
+      {
+          UntrustedList += std::string((*I)->ShortDesc()) + " ";
+      }
+   }
+
+   if (UntrustedList == "")
+   {
+      return true;
+   }
+        
+   ShowList(c2out,_("WARNING: The following packages cannot be authenticated!"),UntrustedList,"");
+
+   if (_config->FindB("APT::Get::AllowUnauthenticated",false) == true)
+   {
+      c2out << _("Authentication warning overridden.\n");
+      return true;
+   }
+
+   if (_config->FindI("quiet",0) < 2
+       && _config->FindB("APT::Get::Assume-Yes",false) == false)
+   {
+      c2out << _("Install these packages without verification?") << std::flush;
+      if (!YnPrompt(false))
+         return _error->Error(_("Some packages could not be authenticated"));
+
+      return true;
+   }
+   else if (_config->FindB("APT::Get::Force-Yes",false) == true)
+   {
+      return true;
+   }
+
+   return _error->Error(_("There are problems and -y was used without --force-yes"));
+}
+									/*}}}*/
+
+
+// InstallPackages - Actually download and install the packages		/*{{{*/
+// ---------------------------------------------------------------------
+/* This displays the informative messages describing what is going to 
+   happen and then calls the download routines */
+bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
+{
+   if (_config->FindB("APT::Get::Purge",false) == true)
+   {
+      pkgCache::PkgIterator I = Cache->PkgBegin();
+      for (; I.end() == false; ++I)
+      {
+	 if (I.Purge() == false && Cache[I].Mode == pkgDepCache::ModeDelete)
+	    Cache->MarkDelete(I,true);
+      }
+   }
+   
+   bool Fail = false;
+   bool Essential = false;
+   
+   // Show all the various warning indicators
+   ShowDel(c1out,Cache);
+   ShowNew(c1out,Cache);
+   if (ShwKept == true)
+      ShowKept(c1out,Cache);
+   Fail |= !ShowHold(c1out,Cache);
+   if (_config->FindB("APT::Get::Show-Upgraded",true) == true)
+      ShowUpgraded(c1out,Cache);
+   Fail |= !ShowDowngraded(c1out,Cache);
+   if (_config->FindB("APT::Get::Download-Only",false) == false)
+        Essential = !ShowEssential(c1out,Cache);
+   Fail |= Essential;
+   Stats(c1out,Cache);
+
+   // Sanity check
+   if (Cache->BrokenCount() != 0)
+   {
+      ShowBroken(c1out,Cache,false);
+      return _error->Error(_("Internal error, InstallPackages was called with broken packages!"));
+   }
+
+   if (Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
+       Cache->BadCount() == 0)
+      return true;
+
+   // No remove flag
+   if (Cache->DelCount() != 0 && _config->FindB("APT::Get::Remove",true) == false)
+      return _error->Error(_("Packages need to be removed but remove is disabled."));
+       
+   // Run the simulator ..
+   if (_config->FindB("APT::Get::Simulate") == true)
+   {
+      pkgSimulate PM(Cache);
+      int status_fd = _config->FindI("APT::Status-Fd",-1);
+      pkgPackageManager::OrderResult Res = PM.DoInstall(status_fd);
+      if (Res == pkgPackageManager::Failed)
+	 return false;
+      if (Res != pkgPackageManager::Completed)
+	 return _error->Error(_("Internal error, Ordering didn't finish"));
+      return true;
+   }
+   
+   // Create the text record parser
+   pkgRecords Recs(Cache);
+   if (_error->PendingError() == true)
+      return false;
+
+   // Create the download object
+   pkgAcquire Fetcher;
+   AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));   
+   if (_config->FindB("APT::Get::Print-URIs", false) == true)
+   {
+      // force a hashsum for compatibility reasons
+      _config->CndSet("Acquire::ForceHash", "md5sum");
+   }
+   else if (Fetcher.Setup(&Stat, _config->FindDir("Dir::Cache::Archives")) == false)
+      return false;
+
+   // Read the source list
+   if (Cache.BuildSourceList() == false)
+      return false;
+   pkgSourceList *List = Cache.GetSourceList();
+   
+   // Create the package manager and prepare to download
+   SPtr<pkgPackageManager> PM= _system->CreatePM(Cache);
+   if (PM->GetArchives(&Fetcher,List,&Recs) == false || 
+       _error->PendingError() == true)
+      return false;
+
+   // Display statistics
+   unsigned long long FetchBytes = Fetcher.FetchNeeded();
+   unsigned long long FetchPBytes = Fetcher.PartialPresent();
+   unsigned long long DebBytes = Fetcher.TotalNeeded();
+   if (DebBytes != Cache->DebSize())
+   {
+      c0out << DebBytes << ',' << Cache->DebSize() << std::endl;
+      c0out << _("How odd.. The sizes didn't match, email apt@packages.debian.org") << std::endl;
+   }
+   
+   // Number of bytes
+   if (DebBytes != FetchBytes)
+      //TRANSLATOR: The required space between number and unit is already included
+      // in the replacement strings, so %sB will be correctly translate in e.g. 1,5 MB
+      ioprintf(c1out,_("Need to get %sB/%sB of archives.\n"),
+	       SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());
+   else if (DebBytes != 0)
+      //TRANSLATOR: The required space between number and unit is already included
+      // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
+      ioprintf(c1out,_("Need to get %sB of archives.\n"),
+	       SizeToStr(DebBytes).c_str());
+
+   // Size delta
+   if (Cache->UsrSize() >= 0)
+      //TRANSLATOR: The required space between number and unit is already included
+      // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
+      ioprintf(c1out,_("After this operation, %sB of additional disk space will be used.\n"),
+	       SizeToStr(Cache->UsrSize()).c_str());
+   else
+      //TRANSLATOR: The required space between number and unit is already included
+      // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
+      ioprintf(c1out,_("After this operation, %sB disk space will be freed.\n"),
+	       SizeToStr(-1*Cache->UsrSize()).c_str());
+
+   if (_error->PendingError() == true)
+      return false;
+
+   /* Check for enough free space, but only if we are actually going to
+      download */
+   if (_config->FindB("APT::Get::Print-URIs") == false &&
+       _config->FindB("APT::Get::Download",true) == true)
+   {
+      struct statvfs Buf;
+      std::string OutputDir = _config->FindDir("Dir::Cache::Archives");
+      if (statvfs(OutputDir.c_str(),&Buf) != 0) {
+	 if (errno == EOVERFLOW)
+	    return _error->WarningE("statvfs",_("Couldn't determine free space in %s"),
+				 OutputDir.c_str());
+	 else
+	    return _error->Errno("statvfs",_("Couldn't determine free space in %s"),
+				 OutputDir.c_str());
+      } else if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
+      {
+         struct statfs Stat;
+         if (statfs(OutputDir.c_str(),&Stat) != 0
+#if HAVE_STRUCT_STATFS_F_TYPE
+             || unsigned(Stat.f_type) != RAMFS_MAGIC
+#endif
+             )
+            return _error->Error(_("You don't have enough free space in %s."),
+                OutputDir.c_str());
+      }
+   }
+   
+   // Fail safe check
+   if (_config->FindI("quiet",0) >= 2 ||
+       _config->FindB("APT::Get::Assume-Yes",false) == true)
+   {
+      if (Fail == true && _config->FindB("APT::Get::Force-Yes",false) == false)
+	 return _error->Error(_("There are problems and -y was used without --force-yes"));
+   }         
+
+   if (Essential == true && Safety == true)
+   {
+      if (_config->FindB("APT::Get::Trivial-Only",false) == true)
+	 return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
+
+      // TRANSLATOR: This string needs to be typed by the user as a confirmation, so be
+      //             careful with hard to type or special characters (like non-breaking spaces)
+      const char *Prompt = _("Yes, do as I say!");
+      ioprintf(c2out,
+	       _("You are about to do something potentially harmful.\n"
+		 "To continue type in the phrase '%s'\n"
+		 " ?] "),Prompt);
+      c2out << std::flush;
+      if (AnalPrompt(Prompt) == false)
+      {
+	 c2out << _("Abort.") << std::endl;
+	 exit(1);
+      }     
+   }
+   else
+   {      
+      // Prompt to continue
+      if (Ask == true || Fail == true)
+      {            
+	 if (_config->FindB("APT::Get::Trivial-Only",false) == true)
+	    return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
+	 
+	 if (_config->FindI("quiet",0) < 2 &&
+	     _config->FindB("APT::Get::Assume-Yes",false) == false)
+	 {
+            c2out << _("Do you want to continue?") << std::flush;
+ 	    if (YnPrompt() == false)
+	    {
+	       c2out << _("Abort.") << std::endl;
+	       exit(1);
+	    }     
+	 }	 
+      }      
+   }
+   
+   // Just print out the uris an exit if the --print-uris flag was used
+   if (_config->FindB("APT::Get::Print-URIs") == true)
+   {
+      pkgAcquire::UriIterator I = Fetcher.UriBegin();
+      for (; I != Fetcher.UriEnd(); ++I)
+	 c1out << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 
+	       I->Owner->FileSize << ' ' << I->Owner->HashSum() << std::endl;
+      return true;
+   }
+
+   if (!CheckAuth(Fetcher))
+      return false;
+
+   /* Unlock the dpkg lock if we are not going to be doing an install
+      after. */
+   if (_config->FindB("APT::Get::Download-Only",false) == true)
+      _system->UnLock();
+   
+   // Run it
+   while (1)
+   {
+      bool Transient = false;
+      if (_config->FindB("APT::Get::Download",true) == false)
+      {
+	 for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd();)
+	 {
+	    if ((*I)->Local == true)
+	    {
+	       ++I;
+	       continue;
+	    }
+
+	    // Close the item and check if it was found in cache
+	    (*I)->Finished();
+	    if ((*I)->Complete == false)
+	       Transient = true;
+	    
+	    // Clear it out of the fetch list
+	    delete *I;
+	    I = Fetcher.ItemsBegin();
+	 }	 
+      }
+      
+      if (Fetcher.Run() == pkgAcquire::Failed)
+	 return false;
+      
+      // Print out errors
+      bool Failed = false;
+      for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I)
+      {
+	 if ((*I)->Status == pkgAcquire::Item::StatDone &&
+	     (*I)->Complete == true)
+	    continue;
+	 
+	 if ((*I)->Status == pkgAcquire::Item::StatIdle)
+	 {
+	    Transient = true;
+	    // Failed = true;
+	    continue;
+	 }
+
+	 fprintf(stderr,_("Failed to fetch %s  %s\n"),(*I)->DescURI().c_str(),
+		 (*I)->ErrorText.c_str());
+	 Failed = true;
+      }
+
+      /* If we are in no download mode and missing files and there were
+         'failures' then the user must specify -m. Furthermore, there 
+         is no such thing as a transient error in no-download mode! */
+      if (Transient == true &&
+	  _config->FindB("APT::Get::Download",true) == false)
+      {
+	 Transient = false;
+	 Failed = true;
+      }
+      
+      if (_config->FindB("APT::Get::Download-Only",false) == true)
+      {
+	 if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
+	    return _error->Error(_("Some files failed to download"));
+	 c1out << _("Download complete and in download only mode") << std::endl;
+	 return true;
+      }
+      
+      if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
+      {
+	 return _error->Error(_("Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?"));
+      }
+      
+      if (Transient == true && Failed == true)
+	 return _error->Error(_("--fix-missing and media swapping is not currently supported"));
+      
+      // Try to deal with missing package files
+      if (Failed == true && PM->FixMissing() == false)
+      {
+	 c2out << _("Unable to correct missing packages.") << std::endl;
+	 return _error->Error(_("Aborting install."));
+      }
+
+      _system->UnLock();
+      int status_fd = _config->FindI("APT::Status-Fd",-1);
+      pkgPackageManager::OrderResult Res = PM->DoInstall(status_fd);
+      if (Res == pkgPackageManager::Failed || _error->PendingError() == true)
+	 return false;
+      if (Res == pkgPackageManager::Completed)
+	 break;
+      
+      // Reload the fetcher object and loop again for media swapping
+      Fetcher.Shutdown();
+      if (PM->GetArchives(&Fetcher,List,&Recs) == false)
+	 return false;
+      
+      _system->Lock();
+   }
+
+   std::set<std::string> const disappearedPkgs = PM->GetDisappearedPackages();
+   if (disappearedPkgs.empty() == true)
+      return true;
+
+   std::string disappear;
+   for (std::set<std::string>::const_iterator d = disappearedPkgs.begin();
+	d != disappearedPkgs.end(); ++d)
+      disappear.append(*d).append(" ");
+
+   ShowList(c1out, P_("The following package disappeared from your system as\n"
+	"all files have been overwritten by other packages:",
+	"The following packages disappeared from your system as\n"
+	"all files have been overwritten by other packages:", disappearedPkgs.size()), disappear, "");
+   c0out << _("Note: This is done automatically and on purpose by dpkg.") << std::endl;
+
+   return true;
+}
+									/*}}}*/
+
+
+// DoAutomaticRemove - Remove all automatic unused packages		/*{{{*/
+// ---------------------------------------------------------------------
+/* Remove unused automatic packages */
+bool DoAutomaticRemove(CacheFile &Cache)
+{
+   bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
+   bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);
+   bool hideAutoRemove = _config->FindB("APT::Get::HideAutoRemove");
+
+   pkgDepCache::ActionGroup group(*Cache);
+   if(Debug)
+      std::cout << "DoAutomaticRemove()" << std::endl;
+
+   if (doAutoRemove == true &&
+	_config->FindB("APT::Get::Remove",true) == false)
+   {
+      c1out << _("We are not supposed to delete stuff, can't start "
+		 "AutoRemover") << std::endl;
+      return false;
+   }
+
+   bool purgePkgs = _config->FindB("APT::Get::Purge", false);
+   bool smallList = (hideAutoRemove == false &&
+		strcasecmp(_config->Find("APT::Get::HideAutoRemove","").c_str(),"small") == 0);
+
+   unsigned long autoRemoveCount = 0;
+   APT::PackageSet tooMuch;
+   APT::PackageList autoRemoveList;
+   // look over the cache to see what can be removed
+   for (unsigned J = 0; J < Cache->Head().PackageCount; ++J)
+   {
+      pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);
+      if (Cache[Pkg].Garbage)
+      {
+	 if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())
+	    if(Debug)
+	       std::cout << "We could delete %s" <<  Pkg.FullName(true).c_str() << std::endl;
+
+	 if (doAutoRemove)
+	 {
+	    if(Pkg.CurrentVer() != 0 && 
+	       Pkg->CurrentState != pkgCache::State::ConfigFiles)
+	       Cache->MarkDelete(Pkg, purgePkgs, 0, false);
+	    else
+	       Cache->MarkKeep(Pkg, false, false);
+	 }
+	 else
+	 {
+	    if (hideAutoRemove == false && Cache[Pkg].Delete() == false)
+	       autoRemoveList.insert(Pkg);
+	    // 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)
+	    {
+	       if (Pkg.CandVersion() != 0)
+	          tooMuch.insert(Pkg);
+	       Cache->MarkDelete(Pkg, false, 0, false);
+	    }
+	    // only show stuff in the list that is not yet marked for removal
+	    else if(hideAutoRemove == false && Cache[Pkg].Delete() == false)
+	       ++autoRemoveCount;
+	 }
+      }
+   }
+
+   // 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 || Cache->PolicyBrokenCount() != 0))
+   {
+      bool Changed;
+      do {
+	 Changed = false;
+	 for (APT::PackageSet::const_iterator Pkg = tooMuch.begin();
+	      Pkg != tooMuch.end() && Changed == false; ++Pkg)
+	 {
+	    APT::PackageSet too;
+	    too.insert(*Pkg);
+	    for (pkgCache::PrvIterator Prv = Cache[Pkg].CandidateVerIter(Cache).ProvidesList();
+		 Prv.end() == false; ++Prv)
+	       too.insert(Prv.ParentPkg());
+	    for (APT::PackageSet::const_iterator P = too.begin();
+		 P != too.end() && Changed == false; ++P) {
+	       for (pkgCache::DepIterator R = P.RevDependsList();
+		    R.end() == false; ++R)
+	       {
+		  if (R.IsNegative() == true ||
+		      Cache->IsImportantDep(R) == false)
+		     continue;
+		 pkgCache::PkgIterator N = R.ParentPkg();
+		 if (N.end() == true || (N->CurrentVer == 0 && (*Cache)[N].Install() == false))
+		    continue;
+		 if (Debug == true)
+		    std::clog << "Save " << Pkg << " as another installed garbage package depends on it" << std::endl;
+		 Cache->MarkInstall(Pkg, false, 0, false);
+		 if (hideAutoRemove == false)
+		    ++autoRemoveCount;
+		 tooMuch.erase(Pkg);
+		 Changed = true;
+		 break;
+	       }
+	    }
+	 }
+      } while (Changed == true);
+   }
+
+   std::string autoremovelist, autoremoveversions;
+   if (smallList == false && autoRemoveCount != 0)
+   {
+      for (APT::PackageList::const_iterator Pkg = autoRemoveList.begin(); Pkg != autoRemoveList.end(); ++Pkg)
+      {
+	 if (Cache[Pkg].Garbage == false)
+	    continue;
+	 autoremovelist += Pkg.FullName(true) + " ";
+	 autoremoveversions += std::string(Cache[Pkg].CandVersion) + "\n";
+      }
+   }
+
+   // Now see if we had destroyed anything (if we had done anything)
+   if (Cache->BrokenCount() != 0)
+   {
+      c1out << _("Hmm, seems like the AutoRemover destroyed something which really\n"
+	         "shouldn't happen. Please file a bug report against apt.") << std::endl;
+      c1out << std::endl;
+      c1out << _("The following information may help to resolve the situation:") << std::endl;
+      c1out << std::endl;
+      ShowBroken(c1out,Cache,false);
+
+      return _error->Error(_("Internal Error, AutoRemover broke stuff"));
+   }
+
+   // if we don't remove them, we should show them!
+   if (doAutoRemove == false && (autoremovelist.empty() == false || autoRemoveCount != 0))
+   {
+      if (smallList == false)
+	 ShowList(c1out, P_("The following package was automatically installed and is no longer required:",
+	          "The following packages were automatically installed and are no longer required:",
+	          autoRemoveCount), autoremovelist, autoremoveversions);
+      else
+	 ioprintf(c1out, P_("%lu package was automatically installed and is no longer required.\n",
+	          "%lu packages were automatically installed and are no longer required.\n", autoRemoveCount), autoRemoveCount);
+      c1out << P_("Use 'apt-get autoremove' to remove it.", "Use 'apt-get autoremove' to remove them.", autoRemoveCount) << std::endl;
+   }
+   return true;
+}
+									/*}}}*/
+
+
+
+
+// DoInstall - Install packages from the command line			/*{{{*/
+// ---------------------------------------------------------------------
+/* Install named packages */
+bool DoInstall(CommandLine &CmdL)
+{
+   CacheFile Cache;
+   if (Cache.OpenForInstall() == false || 
+       Cache.CheckDeps(CmdL.FileSize() != 1) == false)
+      return false;
+   
+   // Enter the special broken fixing mode if the user specified arguments
+   bool BrokenFix = false;
+   if (Cache->BrokenCount() != 0)
+      BrokenFix = true;
+
+   pkgProblemResolver* Fix = NULL;
+   if (_config->FindB("APT::Get::CallResolver", true) == true)
+      Fix = new pkgProblemResolver(Cache);
+
+   static const unsigned short MOD_REMOVE = 1;
+   static const unsigned short MOD_INSTALL = 2;
+
+   unsigned short fallback = MOD_INSTALL;
+   if (strcasecmp(CmdL.FileList[0],"remove") == 0)
+      fallback = MOD_REMOVE;
+   else if (strcasecmp(CmdL.FileList[0], "purge") == 0)
+   {
+      _config->Set("APT::Get::Purge", true);
+      fallback = MOD_REMOVE;
+   }
+   else if (strcasecmp(CmdL.FileList[0], "autoremove") == 0)
+   {
+      _config->Set("APT::Get::AutomaticRemove", "true");
+      fallback = MOD_REMOVE;
+   }
+
+   std::list<APT::VersionSet::Modifier> mods;
+   mods.push_back(APT::VersionSet::Modifier(MOD_INSTALL, "+",
+		APT::VersionSet::Modifier::POSTFIX, APT::VersionSet::CANDIDATE));
+   mods.push_back(APT::VersionSet::Modifier(MOD_REMOVE, "-",
+		APT::VersionSet::Modifier::POSTFIX, APT::VersionSet::NEWEST));
+   CacheSetHelperAPTGet helper(c0out);
+   std::map<unsigned short, APT::VersionSet> verset = APT::VersionSet::GroupedFromCommandLine(Cache,
+		CmdL.FileList + 1, mods, fallback, helper);
+
+   if (_error->PendingError() == true)
+   {
+      helper.showVirtualPackageErrors(Cache);
+      if (Fix != NULL)
+	 delete Fix;
+      return false;
+   }
+
+
+  TryToInstall InstallAction(Cache, Fix, BrokenFix);
+  TryToRemove RemoveAction(Cache, Fix);
+
+   // new scope for the ActionGroup
+   {
+      pkgDepCache::ActionGroup group(Cache);
+      unsigned short const order[] = { MOD_REMOVE, MOD_INSTALL, 0 };
+
+      for (unsigned short i = 0; order[i] != 0; ++i)
+      {
+	 if (order[i] == MOD_INSTALL)
+	    InstallAction = std::for_each(verset[MOD_INSTALL].begin(), verset[MOD_INSTALL].end(), InstallAction);
+	 else if (order[i] == MOD_REMOVE)
+	    RemoveAction = std::for_each(verset[MOD_REMOVE].begin(), verset[MOD_REMOVE].end(), RemoveAction);
+      }
+
+      if (Fix != NULL && _config->FindB("APT::Get::AutoSolving", true) == true)
+      {
+         for (unsigned short i = 0; order[i] != 0; ++i)
+         {
+	    if (order[i] != MOD_INSTALL)
+	       continue;
+	    InstallAction.propergateReleaseCandiateSwitching(helper.selectedByRelease, c0out);
+	    InstallAction.doAutoInstall();
+	 }
+      }
+
+      if (_error->PendingError() == true)
+      {
+	 if (Fix != NULL)
+	    delete Fix;
+	 return false;
+      }
+
+      /* If we are in the Broken fixing mode we do not attempt to fix the
+	 problems. This is if the user invoked install without -f and gave
+	 packages */
+      if (BrokenFix == true && Cache->BrokenCount() != 0)
+      {
+	 c1out << _("You might want to run 'apt-get -f install' to correct these:") << std::endl;
+	 ShowBroken(c1out,Cache,false);
+	 if (Fix != NULL)
+	    delete Fix;
+	 return _error->Error(_("Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)."));
+      }
+
+      if (Fix != NULL)
+      {
+	 // Call the scored problem resolver
+	 Fix->Resolve(true);
+	 delete Fix;
+      }
+
+      // Now we check the state of the packages,
+      if (Cache->BrokenCount() != 0)
+      {
+	 c1out << 
+	    _("Some packages could not be installed. This may mean that you have\n" 
+	      "requested an impossible situation or if you are using the unstable\n" 
+	      "distribution that some required packages have not yet been created\n"
+	      "or been moved out of Incoming.") << std::endl;
+	 /*
+	 if (Packages == 1)
+	 {
+	    c1out << std::endl;
+	    c1out << 
+	       _("Since you only requested a single operation it is extremely likely that\n"
+		 "the package is simply not installable and a bug report against\n" 
+		 "that package should be filed.") << std::endl;
+	 }
+	 */
+
+	 c1out << _("The following information may help to resolve the situation:") << std::endl;
+	 c1out << std::endl;
+	 ShowBroken(c1out,Cache,false);
+	 if (_error->PendingError() == true)
+	    return false;
+	 else
+	    return _error->Error(_("Broken packages"));
+      }
+   }
+   if (!DoAutomaticRemove(Cache)) 
+      return false;
+
+   /* Print out a list of packages that are going to be installed extra
+      to what the user asked */
+   if (Cache->InstCount() != verset[MOD_INSTALL].size())
+   {
+      std::string List;
+      std::string VersionsList;
+      for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
+      {
+	 pkgCache::PkgIterator I(Cache,Cache.List[J]);
+	 if ((*Cache)[I].Install() == false)
+	    continue;
+	 pkgCache::VerIterator Cand = Cache[I].CandidateVerIter(Cache);
+
+	 if (verset[MOD_INSTALL].find(Cand) != verset[MOD_INSTALL].end())
+	    continue;
+
+	 List += I.FullName(true) + " ";
+	 VersionsList += std::string(Cache[I].CandVersion) + "\n";
+      }
+      
+      ShowList(c1out,_("The following extra packages will be installed:"),List,VersionsList);
+   }
+
+   /* Print out a list of suggested and recommended packages */
+   {
+      std::string SuggestsList, RecommendsList;
+      std::string SuggestsVersions, RecommendsVersions;
+      for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
+      {
+	 pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);
+
+	 /* Just look at the ones we want to install */
+	 if ((*Cache)[Pkg].Install() == false)
+	   continue;
+
+	 // get the recommends/suggests for the candidate ver
+	 pkgCache::VerIterator CV = (*Cache)[Pkg].CandidateVerIter(*Cache);
+	 for (pkgCache::DepIterator D = CV.DependsList(); D.end() == false; )
+	 {
+	    pkgCache::DepIterator Start;
+	    pkgCache::DepIterator End;
+	    D.GlobOr(Start,End); // advances D
+
+	    // FIXME: we really should display a or-group as a or-group to the user
+	    //        the problem is that ShowList is incapable of doing this
+            std::string RecommendsOrList,RecommendsOrVersions;
+            std::string SuggestsOrList,SuggestsOrVersions;
+	    bool foundInstalledInOrGroup = false;
+	    for(;;)
+	    {
+	       /* Skip if package is  installed already, or is about to be */
+               std::string target = Start.TargetPkg().FullName(true) + " ";
+	       pkgCache::PkgIterator const TarPkg = Start.TargetPkg();
+	       if (TarPkg->SelectedState == pkgCache::State::Install ||
+		   TarPkg->SelectedState == pkgCache::State::Hold ||
+		   Cache[Start.TargetPkg()].Install())
+	       {
+		  foundInstalledInOrGroup=true;
+		  break;
+	       }
+
+	       /* Skip if we already saw it */
+	       if (int(SuggestsList.find(target)) != -1 || int(RecommendsList.find(target)) != -1)
+	       {
+		  foundInstalledInOrGroup=true;
+		  break; 
+	       }
+
+	       // this is a dep on a virtual pkg, check if any package that provides it
+	       // should be installed
+	       if(Start.TargetPkg().ProvidesList() != 0)
+	       {
+		  pkgCache::PrvIterator I = Start.TargetPkg().ProvidesList();
+		  for (; I.end() == false; ++I)
+		  {
+		     pkgCache::PkgIterator Pkg = I.OwnerPkg();
+		     if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer() && 
+			 Pkg.CurrentVer() != 0)
+			foundInstalledInOrGroup=true;
+		  }
+	       }
+
+	       if (Start->Type == pkgCache::Dep::Suggests) 
+	       {
+		  SuggestsOrList += target;
+		  SuggestsOrVersions += std::string(Cache[Start.TargetPkg()].CandVersion) + "\n";
+	       }
+	       
+	       if (Start->Type == pkgCache::Dep::Recommends) 
+	       {
+		  RecommendsOrList += target;
+		  RecommendsOrVersions += std::string(Cache[Start.TargetPkg()].CandVersion) + "\n";
+	       }
+
+	       if (Start >= End)
+		  break;
+	       ++Start;
+	    }
+	    
+	    if(foundInstalledInOrGroup == false)
+	    {
+	       RecommendsList += RecommendsOrList;
+	       RecommendsVersions += RecommendsOrVersions;
+	       SuggestsList += SuggestsOrList;
+	       SuggestsVersions += SuggestsOrVersions;
+	    }
+	       
+	 }
+      }
+
+      ShowList(c1out,_("Suggested packages:"),SuggestsList,SuggestsVersions);
+      ShowList(c1out,_("Recommended packages:"),RecommendsList,RecommendsVersions);
+
+   }
+
+   // if nothing changed in the cache, but only the automark information
+   // we write the StateFile here, otherwise it will be written in 
+   // cache.commit()
+   if (InstallAction.AutoMarkChanged > 0 &&
+       Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
+       Cache->BadCount() == 0 &&
+       _config->FindB("APT::Get::Simulate",false) == false)
+      Cache->writeStateFile(NULL);
+
+   // See if we need to prompt
+   // FIXME: check if really the packages in the set are going to be installed
+   if (Cache->InstCount() == verset[MOD_INSTALL].size() && Cache->DelCount() == 0)
+      return InstallPackages(Cache,false,false);
+
+   return InstallPackages(Cache,false);   
+}
+									/*}}}*/