reimplement build-dep via apts normal resolver

[apt.git] / apt-private / private-install.cc

diff --git a/apt-private/private-install.cc b/apt-private/private-install.cc
index c06caeedd7207e483ade21455c0862640a2fa070..3f57b55e254827c526da6c389234a10635383892 100644 (file)
--- a/apt-private/private-install.cc
+++ b/apt-private/private-install.cc
@@ -22,11 +22,8 @@
 #include <apt-pkg/upgrade.h>
 #include <apt-pkg/install-progress.h>
 
 #include <apt-pkg/upgrade.h>
 #include <apt-pkg/install-progress.h>
 

-#include <errno.h>

 #include <stdlib.h>
 #include <string.h>
 #include <stdlib.h>
 #include <string.h>

-#include <sys/statfs.h>
-#include <sys/statvfs.h>

 #include <algorithm>
 #include <iostream>
 #include <set>
 #include <algorithm>
 #include <iostream>
 #include <set>


@@ -44,6 +41,37 @@
                                                                        /*}}}*/
 class pkgSourceList;
 
                                                                        /*}}}*/
 class pkgSourceList;
 

+bool CheckNothingBroken(CacheFile &Cache)                              /*{{{*/
+{
+   // Now we check the state of the packages,
+   if (Cache->BrokenCount() == 0)
+      return true;
+
+   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"));
+}
+                                                                       /*}}}*/

 // InstallPackages - Actually download and install the packages                /*{{{*/
 // ---------------------------------------------------------------------
 /* This displays the informative messages describing what is going to 
 // InstallPackages - Actually download and install the packages                /*{{{*/
 // ---------------------------------------------------------------------
 /* This displays the informative messages describing what is going to 


@@ -60,7 +88,8 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
       }
    }
    
       }
    }
    

-   bool Fail = false;
+   bool Hold = false;
+   bool Downgrade = false;

    bool Essential = false;
    
    // Show all the various warning indicators
    bool Essential = false;
    
    // Show all the various warning indicators


@@ -68,13 +97,17 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
    ShowNew(c1out,Cache);
    if (ShwKept == true)
       ShowKept(c1out,Cache);
    ShowNew(c1out,Cache);
    if (ShwKept == true)
       ShowKept(c1out,Cache);

-   Fail |= !ShowHold(c1out,Cache);
+   Hold = !ShowHold(c1out,Cache);

    if (_config->FindB("APT::Get::Show-Upgraded",true) == true)
       ShowUpgraded(c1out,Cache);
    if (_config->FindB("APT::Get::Show-Upgraded",true) == true)
       ShowUpgraded(c1out,Cache);

-   Fail |= !ShowDowngraded(c1out,Cache);
+   Downgrade = !ShowDowngraded(c1out,Cache);
+

    if (_config->FindB("APT::Get::Download-Only",false) == false)
         Essential = !ShowEssential(c1out,Cache);
    if (_config->FindB("APT::Get::Download-Only",false) == false)
         Essential = !ShowEssential(c1out,Cache);

-   Fail |= Essential;
+
+   // All kinds of failures
+   bool Fail = (Essential || Downgrade || Hold);
+

    Stats(c1out,Cache);
 
    // Sanity check
    Stats(c1out,Cache);
 
    // Sanity check


@@ -91,20 +124,33 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
    // 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."));
    // 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."));

-       
+
+   // Fail safe check
+   if (_config->FindI("quiet",0) >= 2 ||
+       _config->FindB("APT::Get::Assume-Yes",false) == true)
+   {
+      if (_config->FindB("APT::Get::Force-Yes",false) == true) {
+        _error->Warning(_("--force-yes is deprecated, use one of the options starting with --allow instead."));
+      }
+
+      if (Fail == true && _config->FindB("APT::Get::Force-Yes",false) == false) {
+        if (Essential == true && _config->FindB("APT::Get::allow-remove-essential", false) == false)
+           return _error->Error(_("Essential packages were removed and -y was used without --allow-remove-essential."));
+        if (Downgrade == true && _config->FindB("APT::Get::allow-downgrades", false) == false)
+           return _error->Error(_("Packages were downgraded and -y was used without --allow-downgrades."));
+        if (Hold == true && _config->FindB("APT::Get::allow-change-held-packages", false) == false)
+           return _error->Error(_("Held packages were changed and -y was used without --allow-change-held-packages."));
+      }
+   }
+

    // Run the simulator ..
    if (_config->FindB("APT::Get::Simulate") == true)
    {
       pkgSimulate PM(Cache);
 
    // Run the simulator ..
    if (_config->FindB("APT::Get::Simulate") == true)
    {
       pkgSimulate PM(Cache);
 

-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)

       APT::Progress::PackageManager *progress = APT::Progress::PackageManagerProgressFactory();
       pkgPackageManager::OrderResult Res = PM.DoInstall(progress);
       delete progress;
       APT::Progress::PackageManager *progress = APT::Progress::PackageManagerProgressFactory();
       pkgPackageManager::OrderResult Res = PM.DoInstall(progress);
       delete progress;

-#else
-      int status_fd = _config->FindI("APT::Status-Fd",-1);
-      pkgPackageManager::OrderResult Res = PM.DoInstall(status_fd);
-#endif

 
       if (Res == pkgPackageManager::Failed)
         return false;
 
       if (Res == pkgPackageManager::Failed)
         return false;


@@ -119,8 +165,7 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
       return false;
 
    // Create the download object
       return false;
 
    // Create the download object

-   AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
-   pkgAcquire Fetcher(&Stat);
+   aptAcquireWithTextStatus Fetcher;

    if (_config->FindB("APT::Get::Print-URIs", false) == true)
    {
       // force a hashsum for compatibility reasons
    if (_config->FindB("APT::Get::Print-URIs", false) == true)
    {
       // force a hashsum for compatibility reasons


@@ -135,7 +180,7 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
    pkgSourceList *List = Cache.GetSourceList();
    
    // Create the package manager and prepare to download
    pkgSourceList *List = Cache.GetSourceList();
    
    // Create the package manager and prepare to download

-   SPtr<pkgPackageManager> PM= _system->CreatePM(Cache);
+   std::unique_ptr<pkgPackageManager> PM(_system->CreatePM(Cache));

    if (PM->GetArchives(&Fetcher,List,&Recs) == false || 
        _error->PendingError() == true)
       return false;
    if (PM->GetArchives(&Fetcher,List,&Recs) == false || 
        _error->PendingError() == true)
       return false;


@@ -177,42 +222,10 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
    if (_error->PendingError() == true)
       return false;
 
    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 (CheckFreeSpaceBeforeDownload(_config->FindDir("Dir::Cache::Archives"), (FetchBytes - FetchPBytes)) == false)
+      return false;

 
 

-   if (Essential == true && Safety == true)
+   if (Essential == true && Safety == true && _config->FindB("APT::Get::allow-remove-essential", false) == false)

    {
       if (_config->FindB("APT::Get::Trivial-Only",false) == true)
         return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
    {
       if (_config->FindB("APT::Get::Trivial-Only",false) == true)
         return _error->Error(_("Trivial Only specified but this is not a trivial operation."));


@@ -333,15 +346,10 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
       }
 
       _system->UnLock();
       }
 
       _system->UnLock();

-      
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
+

       APT::Progress::PackageManager *progress = APT::Progress::PackageManagerProgressFactory();
       pkgPackageManager::OrderResult Res = PM->DoInstall(progress);
       delete progress;
       APT::Progress::PackageManager *progress = APT::Progress::PackageManagerProgressFactory();
       pkgPackageManager::OrderResult Res = PM->DoInstall(progress);
       delete progress;

-#else
-      int status_fd = _config->FindI("APT::Status-Fd", -1);
-      pkgPackageManager::OrderResult Res = PM->DoInstall(status_fd);
-#endif

 
       if (Res == pkgPackageManager::Failed || _error->PendingError() == true)
         return false;
 
       if (Res == pkgPackageManager::Failed || _error->PendingError() == true)
         return false;


@@ -357,19 +365,29 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
    }
 
    std::set<std::string> const disappearedPkgs = PM->GetDisappearedPackages();
    }
 
    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(" ");
+   if (disappearedPkgs.empty() == false)
+   {
+      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()), disappearedPkgs,
+           [](std::string const &Pkg) { return Pkg.empty() == false; },
+           [](std::string const &Pkg) { return Pkg; },
+           [](std::string const &) { return std::string(); });
+      c0out << _("Note: This is done automatically and on purpose by dpkg.") << std::endl;
+   }

 
 

-   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;
+   // cleanup downloaded debs
+   if (_config->FindB("APT::Keep-Downloaded-Packages", true) == false)
+   {
+      std::string const archivedir = _config->FindDir("Dir::Cache::archives");
+      for (auto I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); ++I)
+      {
+        if (flNotFile((*I)->DestFile) != archivedir || (*I)->Local)
+           continue;
+         RemoveFile("Keep-Downloaded-Packages=false", (*I)->DestFile);
+      }
+   }

 
    return true;
 }
 
    return true;
 }


@@ -377,7 +395,7 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
 // DoAutomaticRemove - Remove all automatic unused packages            /*{{{*/
 // ---------------------------------------------------------------------
 /* Remove unused automatic packages */
 // DoAutomaticRemove - Remove all automatic unused packages            /*{{{*/
 // ---------------------------------------------------------------------
 /* Remove unused automatic packages */

-static bool DoAutomaticRemove(CacheFile &Cache)
+bool DoAutomaticRemove(CacheFile &Cache)

 {
    bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
    bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);
 {
    bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
    bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);


@@ -401,11 +419,10 @@ static bool DoAutomaticRemove(CacheFile &Cache)
 
    unsigned long autoRemoveCount = 0;
    APT::PackageSet tooMuch;
 
    unsigned long autoRemoveCount = 0;
    APT::PackageSet tooMuch;

-   APT::PackageList autoRemoveList;
+   SortedPackageUniverse Universe(Cache);

    // look over the cache to see what can be removed
    // look over the cache to see what can be removed

-   for (unsigned J = 0; J < Cache->Head().PackageCount; ++J)
+   for (auto const &Pkg: Universe)

    {
    {

-      pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);

       if (Cache[Pkg].Garbage)
       {
         if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())
       if (Cache[Pkg].Garbage)
       {
         if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())


@@ -422,8 +439,6 @@ static bool DoAutomaticRemove(CacheFile &Cache)
         }
         else
         {
         }
         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 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)


@@ -446,7 +461,7 @@ static bool DoAutomaticRemove(CacheFile &Cache)
       bool Changed;
       do {
         Changed = false;
       bool Changed;
       do {
         Changed = false;

-        for (APT::PackageSet::const_iterator Pkg = tooMuch.begin();
+        for (APT::PackageSet::iterator Pkg = tooMuch.begin();

              Pkg != tooMuch.end(); ++Pkg)
         {
            APT::PackageSet too;
              Pkg != tooMuch.end(); ++Pkg)
         {
            APT::PackageSet too;


@@ -483,18 +498,6 @@ static bool DoAutomaticRemove(CacheFile &Cache)
       } while (Changed == true);
    }
 
       } 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)
    {
    // Now see if we had destroyed anything (if we had done anything)
    if (Cache->BrokenCount() != 0)
    {


@@ -509,16 +512,25 @@ static bool DoAutomaticRemove(CacheFile &Cache)
    }
 
    // if we don't remove them, we should show them!
    }
 
    // if we don't remove them, we should show them!

-   if (doAutoRemove == false && (autoremovelist.empty() == false || autoRemoveCount != 0))
+   if (doAutoRemove == false && autoRemoveCount != 0)

    {
       if (smallList == false)
    {
       if (smallList == false)

+      {
+        SortedPackageUniverse Universe(Cache);

         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:",
         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);
+                 autoRemoveCount), Universe,
+              [&Cache](pkgCache::PkgIterator const &Pkg) { return (*Cache)[Pkg].Garbage == true && (*Cache)[Pkg].Delete() == false; },
+              &PrettyFullName, CandidateVersion(&Cache));
+      }

       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);
       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;
+      std::string autocmd = "apt autoremove";
+      if (getenv("SUDO_USER") != NULL)
+        autocmd = "sudo " + autocmd;
+      ioprintf(c1out, P_("Use '%s' to remove it.", "Use '%s' to remove them.", autoRemoveCount), autocmd.c_str());
+      c1out << std::endl;

    }
    return true;
 }
    }
    return true;
 }


@@ -528,11 +540,16 @@ static const unsigned short MOD_REMOVE = 1;
 static const unsigned short MOD_INSTALL = 2;
 
 bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache, int UpgradeMode)
 static const unsigned short MOD_INSTALL = 2;
 
 bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache, int UpgradeMode)

+{
+   std::vector<const char*> VolatileCmdL;
+   return DoCacheManipulationFromCommandLine(CmdL, VolatileCmdL, Cache, UpgradeMode);
+}
+bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, std::vector<const char*> &VolatileCmdL, CacheFile &Cache, int UpgradeMode)

 {
    std::map<unsigned short, APT::VersionSet> verset;
 {
    std::map<unsigned short, APT::VersionSet> verset;

-   return DoCacheManipulationFromCommandLine(CmdL, Cache, verset, UpgradeMode);
+   return DoCacheManipulationFromCommandLine(CmdL, VolatileCmdL, Cache, verset, UpgradeMode);

 }
 }

-bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
+bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, std::vector<const char*> &VolatileCmdL, CacheFile &Cache,

                                         std::map<unsigned short, APT::VersionSet> &verset, int UpgradeMode)
 {
    // Enter the special broken fixing mode if the user specified arguments
                                         std::map<unsigned short, APT::VersionSet> &verset, int UpgradeMode)
 {
    // Enter the special broken fixing mode if the user specified arguments


@@ -540,9 +557,9 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
    if (Cache->BrokenCount() != 0)
       BrokenFix = true;
 
    if (Cache->BrokenCount() != 0)
       BrokenFix = true;
 

-   SPtr<pkgProblemResolver> Fix;
+   std::unique_ptr<pkgProblemResolver> Fix(nullptr);

    if (_config->FindB("APT::Get::CallResolver", true) == true)
    if (_config->FindB("APT::Get::CallResolver", true) == true)

-      Fix = new pkgProblemResolver(Cache);
+      Fix.reset(new pkgProblemResolver(Cache));

 
    unsigned short fallback = MOD_INSTALL;
    if (strcasecmp(CmdL.FileList[0],"remove") == 0)
 
    unsigned short fallback = MOD_INSTALL;
    if (strcasecmp(CmdL.FileList[0],"remove") == 0)


@@ -552,7 +569,8 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
       _config->Set("APT::Get::Purge", true);
       fallback = MOD_REMOVE;
    }
       _config->Set("APT::Get::Purge", true);
       fallback = MOD_REMOVE;
    }

-   else if (strcasecmp(CmdL.FileList[0], "autoremove") == 0)
+   else if (strcasecmp(CmdL.FileList[0], "autoremove") == 0 ||
+           strcasecmp(CmdL.FileList[0], "auto-remove") == 0)

    {
       _config->Set("APT::Get::AutomaticRemove", "true");
       fallback = MOD_REMOVE;
    {
       _config->Set("APT::Get::AutomaticRemove", "true");
       fallback = MOD_REMOVE;


@@ -567,6 +585,20 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
    verset = APT::VersionSet::GroupedFromCommandLine(Cache,
                CmdL.FileList + 1, mods, fallback, helper);
 
    verset = APT::VersionSet::GroupedFromCommandLine(Cache,
                CmdL.FileList + 1, mods, fallback, helper);
 

+   for (auto const &I: VolatileCmdL)
+   {
+      pkgCache::PkgIterator const P = Cache->FindPkg(I);
+      if (P.end())
+        continue;
+
+      // Set any version providing the .deb as the candidate.
+      for (auto Prv = P.ProvidesList(); Prv.end() == false; Prv++)
+        Cache.GetDepCache()->SetCandidateVersion(Prv.OwnerVer());
+
+      // via cacheset to have our usual virtual handling
+      APT::VersionContainerInterface::FromPackage(&(verset[MOD_INSTALL]), Cache, P, APT::CacheSetHelper::CANDIDATE, helper);
+   }
+

    if (_error->PendingError() == true)
    {
       helper.showVirtualPackageErrors(Cache);
    if (_error->PendingError() == true)
    {
       helper.showVirtualPackageErrors(Cache);


@@ -574,8 +606,8 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
    }
 
 
    }
 
 

-  TryToInstall InstallAction(Cache, Fix, BrokenFix);
-  TryToRemove RemoveAction(Cache, Fix);
+  TryToInstall InstallAction(Cache, Fix.get(), BrokenFix);
+  TryToRemove RemoveAction(Cache, Fix.get());

 
    // new scope for the ActionGroup
    {
 
    // new scope for the ActionGroup
    {


@@ -592,13 +624,8 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
 
       if (Fix != NULL && _config->FindB("APT::Get::AutoSolving", true) == true)
       {
 
       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();
-        }
+        InstallAction.propergateReleaseCandiateSwitching(helper.selectedByRelease, c0out);
+        InstallAction.doAutoInstall();

       }
 
       if (_error->PendingError() == true)
       }
 
       if (_error->PendingError() == true)


@@ -632,33 +659,8 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
            return false;
       }
 
            return false;
       }
 

-      // 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 (CheckNothingBroken(Cache) == false)
+        return false;

    }
    if (!DoAutomaticRemove(Cache)) 
       return false;
    }
    if (!DoAutomaticRemove(Cache)) 
       return false;


@@ -678,73 +680,46 @@ bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
 // DoInstall - Install packages from the command line                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Install named packages */
 // DoInstall - Install packages from the command line                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Install named packages */

+struct PkgIsExtraInstalled {
+   pkgCacheFile * const Cache;
+   APT::VersionSet const * const verset;
+   PkgIsExtraInstalled(pkgCacheFile * const Cache, APT::VersionSet const * const Container) : Cache(Cache), verset(Container) {}
+   bool operator() (pkgCache::PkgIterator const &Pkg)
+   {
+        if ((*Cache)[Pkg].Install() == false)
+           return false;
+        pkgCache::VerIterator const Cand = (*Cache)[Pkg].CandidateVerIter(*Cache);
+        return verset->find(Cand) == verset->end();
+   }
+};

 bool DoInstall(CommandLine &CmdL)
 {
    CacheFile Cache;
 bool DoInstall(CommandLine &CmdL)
 {
    CacheFile Cache;

-   // first check for local pkgs and add them to the cache
-   for (const char **I = CmdL.FileList; *I != 0; I++)
-   {
-      if(FileExists(*I))
-      {
-         // FIXME: make this more elegant
-         std::string TypeStr = flExtension(*I) + "-file";
-         pkgSourceList::Type *Type = pkgSourceList::Type::GetType(TypeStr.c_str());
-         if(Type != 0)
-         {
-            std::vector<metaIndex *> List;
-            std::map<std::string, std::string> Options;
-            if(Type->CreateItem(List, *I, "", "", Options))
-            {
-               // we have our own CacheFile that gives us a SourceList
-               // with superpowerz
-               SourceList *sources = (SourceList*)Cache.GetSourceList();
-               sources->AddMetaIndex(List[0]);
-            }
-         }
-      }
-   }
+   std::vector<char const *> VolatileCmdL;
+   Cache.GetSourceList()->AddVolatileFiles(CmdL, &VolatileCmdL);

 
    // then open the cache
    if (Cache.OpenForInstall() == false || 
        Cache.CheckDeps(CmdL.FileSize() != 1) == false)
       return false;
 
    // then open the cache
    if (Cache.OpenForInstall() == false || 
        Cache.CheckDeps(CmdL.FileSize() != 1) == false)
       return false;

-   
-   std::map<unsigned short, APT::VersionSet> verset;

 
 

-   if(!DoCacheManipulationFromCommandLine(CmdL, Cache, verset, 0))
+   std::map<unsigned short, APT::VersionSet> verset;
+   if(!DoCacheManipulationFromCommandLine(CmdL, VolatileCmdL, Cache, verset, 0))

       return false;
 
    /* Print out a list of packages that are going to be installed extra
       to what the user asked */
       return false;
 
    /* Print out a list of packages that are going to be installed extra
       to what the user asked */

+   SortedPackageUniverse Universe(Cache);

    if (Cache->InstCount() != verset[MOD_INSTALL].size())
    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);
-   }
+      ShowList(c1out, _("The following additional packages will be installed:"), Universe,
+           PkgIsExtraInstalled(&Cache, &verset[MOD_INSTALL]),
+           &PrettyFullName, CandidateVersion(&Cache));

 
    /* Print out a list of suggested and recommended packages */
    {
 
    /* 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++)
+      std::list<std::string> Recommends, Suggests, SingleRecommends, SingleSuggests;
+      for (auto const &Pkg: Universe)

       {
       {

-        pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);
-

         /* Just look at the ones we want to install */
         if ((*Cache)[Pkg].Install() == false)
           continue;
         /* Just look at the ones we want to install */
         if ((*Cache)[Pkg].Install() == false)
           continue;


@@ -756,77 +731,79 @@ bool DoInstall(CommandLine &CmdL)
            pkgCache::DepIterator Start;
            pkgCache::DepIterator End;
            D.GlobOr(Start,End); // advances D
            pkgCache::DepIterator Start;
            pkgCache::DepIterator End;
            D.GlobOr(Start,End); // advances D

+           if (Start->Type != pkgCache::Dep::Recommends && Start->Type != pkgCache::Dep::Suggests)
+              continue;

 
 

-           // 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())
+              // Skip if we already saw this
+              std::string target;
+              for (pkgCache::DepIterator I = Start; I != D; ++I)

               {
               {

-                 foundInstalledInOrGroup=true;
-                 break;
-              }
-
-              /* Skip if we already saw it */
-              if (int(SuggestsList.find(target)) != -1 || int(RecommendsList.find(target)) != -1)
-              {
-                 foundInstalledInOrGroup=true;
-                 break; 
+                 if (target.empty() == false)
+                    target.append(" | ");
+                 target.append(I.TargetPkg().FullName(true));

               }
               }

+              std::list<std::string> &Type = Start->Type == pkgCache::Dep::Recommends ? SingleRecommends : SingleSuggests;
+              if (std::find(Type.begin(), Type.end(), target) != Type.end())
+                 continue;
+              Type.push_back(target);
+           }

 
 

-              // this is a dep on a virtual pkg, check if any package that provides it
-              // should be installed
-              if(Start.TargetPkg().ProvidesList() != 0)
+           std::list<std::string> OrList;
+           bool foundInstalledInOrGroup = false;
+           for (pkgCache::DepIterator I = Start; I != D; ++I)
+           {

               {
               {

-                 pkgCache::PrvIterator I = Start.TargetPkg().ProvidesList();
-                 for (; I.end() == false; ++I)
+                 // satisfying package is installed and not marked for deletion
+                 APT::VersionList installed = APT::VersionList::FromDependency(Cache, I, APT::CacheSetHelper::INSTALLED);
+                 if (std::find_if(installed.begin(), installed.end(),
+                          [&Cache](pkgCache::VerIterator const &Ver) { return Cache[Ver.ParentPkg()].Delete() == false; }) != installed.end())

                  {
                  {

-                    pkgCache::PkgIterator Pkg = I.OwnerPkg();
-                    if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer() && 
-                        Pkg.CurrentVer() != 0)
-                       foundInstalledInOrGroup=true;
+                    foundInstalledInOrGroup = true;
+                    break;

                  }
               }
 
                  }
               }
 

-              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";
+                 // satisfying package is upgraded to/new install
+                 APT::VersionList upgrades = APT::VersionList::FromDependency(Cache, I, APT::CacheSetHelper::CANDIDATE);
+                 if (std::find_if(upgrades.begin(), upgrades.end(),
+                          [&Cache](pkgCache::VerIterator const &Ver) { return Cache[Ver.ParentPkg()].Upgrade(); }) != upgrades.end())
+                 {
+                    foundInstalledInOrGroup = true;
+                    break;
+                 }

               }
 
               }
 

-              if (Start >= End)
-                 break;
-              ++Start;
+              if (OrList.empty())
+                 OrList.push_back(I.TargetPkg().FullName(true));
+              else
+                 OrList.push_back("| " + I.TargetPkg().FullName(true));

            }
            }

-           
+

            if(foundInstalledInOrGroup == false)
            {
            if(foundInstalledInOrGroup == false)
            {

-              RecommendsList += RecommendsOrList;
-              RecommendsVersions += RecommendsOrVersions;
-              SuggestsList += SuggestsOrList;
-              SuggestsVersions += SuggestsOrVersions;
+              std::list<std::string> &Type = Start->Type == pkgCache::Dep::Recommends ? Recommends : Suggests;
+              std::move(OrList.begin(), OrList.end(), std::back_inserter(Type));

            }
            }

-              

         }
       }
         }
       }

-
-      ShowList(c1out,_("Suggested packages:"),SuggestsList,SuggestsVersions);
-      ShowList(c1out,_("Recommended packages:"),RecommendsList,RecommendsVersions);
-
+      auto always_true = [](std::string const&) { return true; };
+      auto string_ident = [](std::string const&str) { return str; };
+      auto verbose_show_candidate =
+        [&Cache](std::string str)
+        {
+           if (APT::String::Startswith(str, "| "))
+              str.erase(0, 2);
+           pkgCache::PkgIterator const Pkg = Cache->FindPkg(str);
+           if (Pkg.end() == true)
+              return "";
+           return (*Cache)[Pkg].CandVersion;
+        };
+      ShowList(c1out,_("Suggested packages:"), Suggests,
+           always_true, string_ident, verbose_show_candidate);
+      ShowList(c1out,_("Recommended packages:"), Recommends,
+           always_true, string_ident, verbose_show_candidate);

    }
 
    // See if we need to prompt
    }
 
    // See if we need to prompt


@@ -834,13 +811,23 @@ bool DoInstall(CommandLine &CmdL)
    if (Cache->InstCount() == verset[MOD_INSTALL].size() && Cache->DelCount() == 0)
       return InstallPackages(Cache,false,false);
 
    if (Cache->InstCount() == verset[MOD_INSTALL].size() && Cache->DelCount() == 0)
       return InstallPackages(Cache,false,false);
 

-   return InstallPackages(Cache,false);   
+   return InstallPackages(Cache,false);

 }
                                                                        /*}}}*/
 
 // TryToInstall - Mark a package for installation                      /*{{{*/
 void TryToInstall::operator() (pkgCache::VerIterator const &Ver) {
 }
                                                                        /*}}}*/
 
 // TryToInstall - Mark a package for installation                      /*{{{*/
 void TryToInstall::operator() (pkgCache::VerIterator const &Ver) {

+   if (unlikely(Ver.end()))
+   {
+      _error->Fatal("The given version to TryToInstall is invalid!");
+      return;
+   }

    pkgCache::PkgIterator Pkg = Ver.ParentPkg();
    pkgCache::PkgIterator Pkg = Ver.ParentPkg();

+   if (unlikely(Pkg.end()))
+   {
+      _error->Fatal("The given version to TryToInstall has an invalid parent package!");
+      return;
+   }

 
    Cache->GetDepCache()->SetCandidateVersion(Ver);
    pkgDepCache::StateCache &State = (*Cache)[Pkg];
 
    Cache->GetDepCache()->SetCandidateVersion(Ver);
    pkgDepCache::StateCache &State = (*Cache)[Pkg];


@@ -868,8 +855,9 @@ void TryToInstall::operator() (pkgCache::VerIterator const &Ver) {
            else
               Cache->GetDepCache()->SetReInstall(Pkg, true);
         } else
            else
               Cache->GetDepCache()->SetReInstall(Pkg, true);
         } else

-           ioprintf(c1out,_("%s is already the newest version.\n"),
-                 Pkg.FullName(true).c_str());
+           // TRANSLATORS: First string is package name, second is version
+           ioprintf(c1out,_("%s is already the newest version (%s).\n"),
+                 Pkg.FullName(true).c_str(), Pkg.CurrentVer().VerStr());

       }
 
       // Install it with autoinstalling enabled (if we not respect the minial
       }
 
       // Install it with autoinstalling enabled (if we not respect the minial