debian/control: Set Standards-Version to 3.9.7

[apt.git] / cmdline / apt-cache.cc

diff --git a/cmdline/apt-cache.cc b/cmdline/apt-cache.cc
index a4f34c61a1fefdd9264f4c61596e7ec2c7002128..4818330848e72af9f1d87320d7d7edb409187881 100644 (file)
--- a/cmdline/apt-cache.cc
+++ b/cmdline/apt-cache.cc
@@ -1,96 +1,211 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/

-// $Id: apt-cache.cc,v 1.8 1998/09/26 05:34:29 jgg Exp $
+// $Id: apt-cache.cc,v 1.72 2004/04/30 04:34:03 mdz Exp $

 /* ######################################################################
    
    apt-cache - Manages the cache files
    
    apt-cache provides some functions fo manipulating the cache files.
 /* ######################################################################
    
    apt-cache - Manages the cache files
    
    apt-cache provides some functions fo manipulating the cache files.

-   It uses the command line interface common to all the APT tools. The
-   only really usefull function right now is dumpavail which is used
-   by the dselect method. Everything else is ment as a debug aide.
+   It uses the command line interface common to all the APT tools. 

    
    Returns 100 on failure, 0 on success.
    
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    
    Returns 100 on failure, 0 on success.
    
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

+#include<config.h>
+
+#include <apt-pkg/algorithms.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/cmndline.h>

 #include <apt-pkg/error.h>
 #include <apt-pkg/error.h>

-#include <apt-pkg/pkgcachegen.h>
-#include <apt-pkg/deblistparser.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/indexfile.h>

 #include <apt-pkg/init.h>
 #include <apt-pkg/init.h>

+#include <apt-pkg/metaindex.h>
+#include <apt-pkg/pkgrecords.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/policy.h>

 #include <apt-pkg/progress.h>
 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/progress.h>
 #include <apt-pkg/sourcelist.h>

-#include <apt-pkg/cmndline.h>
+#include <apt-pkg/sptr.h>
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/tagfile.h>
+#include <apt-pkg/version.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/mmap.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <apt-private/private-cacheset.h>
+#include <apt-private/private-cmndline.h>
+#include <apt-private/private-depends.h>
+#include <apt-private/private-show.h>
+#include <apt-private/private-search.h>
+#include <apt-private/private-unmet.h>
+#include <apt-private/private-main.h>
+
+#include <regex.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <algorithm>
+#include <cstring>
+#include <iomanip>
+#include <iostream>
+#include <list>
+#include <map>
+#include <set>
+#include <string>
+#include <vector>

 
 

-#include <iostream.h>
-#include <config.h>
+#include <apti18n.h>

                                                                        /*}}}*/
 
                                                                        /*}}}*/
 

+using namespace std;
+

 // DumpPackage - Show a dump of a package record                       /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DumpPackage - Show a dump of a package record                       /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool DumpPackage(pkgCache &Cache,CommandLine &CmdL)
-{   
-   for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+static bool DumpPackage(CommandLine &CmdL)
+{
+   pkgCacheFile CacheFile;
+   APT::CacheSetHelper helper(true, GlobalError::NOTICE);
+   APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
+
+   for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)

    {
    {

-      pkgCache::PkgIterator Pkg = Cache.FindPkg(*I);
-      if (Pkg.end() == true)
+      cout << "Package: " << Pkg.FullName(true) << endl;
+      cout << "Versions: " << endl;
+      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)

       {
       {

-        _error->Warning("Unable to locate package %s",*I);
-        continue;
+        cout << Cur.VerStr();
+        for (pkgCache::VerFileIterator Vf = Cur.FileList(); Vf.end() == false; ++Vf)
+           cout << " (" << Vf.File().FileName() << ")";
+        cout << endl;
+        for (pkgCache::DescIterator D = Cur.DescriptionList(); D.end() == false; ++D)
+        {
+           cout << " Description Language: " << D.LanguageCode() << endl
+                << "                 File: " << D.FileList().File().FileName() << endl
+                << "                  MD5: " << D.md5() << endl;
+        }
+        cout << endl;

       }
       }

-
-      cout << "Package: " << Pkg.Name() << endl;
-      cout << "Versions: ";
-      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++)
-        cout << Cur.VerStr() << ',';
+      

       cout << endl;
       
       cout << "Reverse Depends: " << endl;
       cout << endl;
       
       cout << "Reverse Depends: " << endl;

-      for (pkgCache::DepIterator D = Pkg.RevDependsList(); D.end() != true; D++)
-        cout << "  " << D.ParentPkg().Name() << ',' << D.TargetPkg().Name() << endl;
-
+      for (pkgCache::DepIterator D = Pkg.RevDependsList(); D.end() != true; ++D)
+      {
+        cout << "  " << D.ParentPkg().FullName(true) << ',' << D.TargetPkg().FullName(true);
+        if (D->Version != 0)
+           cout << ' ' << DeNull(D.TargetVer()) << endl;
+        else
+           cout << endl;
+      }
+      

       cout << "Dependencies: " << endl;
       cout << "Dependencies: " << endl;

-      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++)
+      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)

       {
         cout << Cur.VerStr() << " - ";
       {
         cout << Cur.VerStr() << " - ";

-        for (pkgCache::DepIterator Dep = Cur.DependsList(); Dep.end() != true; Dep++)
-           cout << Dep.TargetPkg().Name() << " (" << (int)Dep->CompareOp << " " << Dep.TargetVer() << ") ";
+        for (pkgCache::DepIterator Dep = Cur.DependsList(); Dep.end() != true; ++Dep)
+           cout << Dep.TargetPkg().FullName(true) << " (" << (int)Dep->CompareOp << " " << DeNull(Dep.TargetVer()) << ") ";

         cout << endl;
       }      
 
       cout << "Provides: " << endl;
         cout << endl;
       }      
 
       cout << "Provides: " << endl;

-      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; Cur++)
+      for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)

       {
         cout << Cur.VerStr() << " - ";
       {
         cout << Cur.VerStr() << " - ";

-        for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; Prv++)
-           cout << Prv.ParentPkg().Name() << " ";
+        for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; ++Prv)
+           cout << Prv.ParentPkg().FullName(true) << " (= " << (Prv->ProvideVersion == 0 ? "" : Prv.ProvideVersion()) << ") ";

         cout << endl;
       }
       cout << "Reverse Provides: " << endl;
         cout << endl;
       }
       cout << "Reverse Provides: " << endl;

-      for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; Prv++)
-        cout << Prv.OwnerPkg().Name() << " " << Prv.OwnerVer().VerStr();
-      cout << endl;
+      for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; ++Prv)
+        cout << Prv.OwnerPkg().FullName(true) << " " << Prv.OwnerVer().VerStr()  << " (= " << (Prv->ProvideVersion == 0 ? "" : Prv.ProvideVersion()) << ")"<< endl;

    }
 
    return true;
 }
                                                                        /*}}}*/
    }
 
    return true;
 }
                                                                        /*}}}*/

+// ShowHashTableStats - Show stats about a hashtable                   /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static map_pointer_t PackageNext(pkgCache::Package const * const P) { return P->NextPackage; }
+static map_pointer_t GroupNext(pkgCache::Group const * const G) { return G->Next; }
+template<class T>
+static void ShowHashTableStats(std::string Type,
+                               T *StartP,
+                               map_pointer_t *Hashtable,
+                               unsigned long Size,
+                              map_pointer_t(*Next)(T const * const))
+{
+   // hashtable stats for the HashTable
+   unsigned long NumBuckets = Size;
+   unsigned long UsedBuckets = 0;
+   unsigned long UnusedBuckets = 0;
+   unsigned long LongestBucket = 0;
+   unsigned long ShortestBucket = NumBuckets;
+   unsigned long Entries = 0;
+   for (unsigned int i=0; i < NumBuckets; ++i)
+   {
+      T *P = StartP + Hashtable[i];
+      if(P == 0 || P == StartP)
+      {
+         ++UnusedBuckets;
+         continue;
+      }
+      ++UsedBuckets;
+      unsigned long ThisBucketSize = 0;
+      for (; P != StartP; P = StartP + Next(P))
+         ++ThisBucketSize;
+      Entries += ThisBucketSize;
+      LongestBucket = std::max(ThisBucketSize, LongestBucket);
+      ShortestBucket = std::min(ThisBucketSize, ShortestBucket);
+   }
+   cout << "Total buckets in " << Type << ": " << NumBuckets << std::endl;
+   cout << "  Unused: " << UnusedBuckets << std::endl;
+   cout << "  Used: " << UsedBuckets  << std::endl;
+   cout << "  Utilization: " << 100.0 * UsedBuckets/NumBuckets << "%" << std::endl;
+   cout << "  Average entries: " << Entries/(double)UsedBuckets << std::endl;
+   cout << "  Longest: " << LongestBucket << std::endl;
+   cout << "  Shortest: " << ShortestBucket << std::endl;
+}
+                                                                       /*}}}*/

 // Stats - Dump some nice statistics                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // Stats - Dump some nice statistics                                   /*{{{*/
 // ---------------------------------------------------------------------
 /* */

-bool Stats(pkgCache &Cache)
+static bool Stats(CommandLine &CmdL)

 {
 {

-   cout << "Total Package Names : " << Cache.Head().PackageCount << endl;
-   pkgCache::PkgIterator I = Cache.PkgBegin();
-   
+   if (CmdL.FileSize() > 1) {
+      _error->Error(_("apt-cache stats does not take any arguments"));
+      return false;
+   }
+
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+
+   if (unlikely(Cache == NULL))
+      return false;
+
+   cout << _("Total package names: ") << Cache->Head().GroupCount << " (" <<
+      SizeToStr(Cache->Head().GroupCount*Cache->Head().GroupSz) << ')' << endl
+        << _("Total package structures: ") << Cache->Head().PackageCount << " (" <<
+      SizeToStr(Cache->Head().PackageCount*Cache->Head().PackageSz) << ')' << endl;
+

    int Normal = 0;
    int Virtual = 0;
    int NVirt = 0;
    int DVirt = 0;
    int Missing = 0;
    int Normal = 0;
    int Virtual = 0;
    int NVirt = 0;
    int DVirt = 0;
    int Missing = 0;

-   for (;I.end() != true; I++)
+   pkgCache::PkgIterator I = Cache->PkgBegin();
+   for (;I.end() != true; ++I)

    {
       if (I->VersionList != 0 && I->ProvidesList == 0)
       {
    {
       if (I->VersionList != 0 && I->ProvidesList == 0)
       {


@@ -121,41 +236,158 @@ bool Stats(pkgCache &Cache)
         continue;
       }
    }
         continue;
       }
    }

-   cout << "  Normal Packages: " << Normal << endl;
-   cout << "  Pure Virtual Packages: " << Virtual << endl;
-   cout << "  Single Virtual Packages: " << DVirt << endl;
-   cout << "  Mixed Virtual Packages: " << NVirt << endl;
-   cout << "  Missing: " << Missing << endl;
-   
-   cout << "Total Distinct Versions: " << Cache.Head().VersionCount << endl;
-   cout << "Total Dependencies: " << Cache.Head().DependsCount << endl;
+   cout << _("  Normal packages: ") << Normal << endl;
+   cout << _("  Pure virtual packages: ") << Virtual << endl;
+   cout << _("  Single virtual packages: ") << DVirt << endl;
+   cout << _("  Mixed virtual packages: ") << NVirt << endl;
+   cout << _("  Missing: ") << Missing << endl;
+
+   cout << _("Total distinct versions: ") << Cache->Head().VersionCount << " (" <<
+      SizeToStr(Cache->Head().VersionCount*Cache->Head().VersionSz) << ')' << endl;
+   cout << _("Total distinct descriptions: ") << Cache->Head().DescriptionCount << " (" <<
+      SizeToStr(Cache->Head().DescriptionCount*Cache->Head().DescriptionSz) << ')' << endl;
+   cout << _("Total dependencies: ") << Cache->Head().DependsCount << "/" << Cache->Head().DependsDataCount << " (" <<
+      SizeToStr((Cache->Head().DependsCount*Cache->Head().DependencySz) +
+           (Cache->Head().DependsDataCount*Cache->Head().DependencyDataSz)) << ')' << endl;
+   cout << _("Total ver/file relations: ") << Cache->Head().VerFileCount << " (" <<
+      SizeToStr(Cache->Head().VerFileCount*Cache->Head().VerFileSz) << ')' << endl;
+   cout << _("Total Desc/File relations: ") << Cache->Head().DescFileCount << " (" <<
+      SizeToStr(Cache->Head().DescFileCount*Cache->Head().DescFileSz) << ')' << endl;
+   cout << _("Total Provides mappings: ") << Cache->Head().ProvidesCount << " (" <<
+      SizeToStr(Cache->Head().ProvidesCount*Cache->Head().ProvidesSz) << ')' << endl;
+
+   // String list stats
+   std::set<map_stringitem_t> stritems;
+   for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G)
+      stritems.insert(G->Name);
+   for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
+   {
+      stritems.insert(P->Arch);
+      for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
+      {
+        if (V->VerStr != 0)
+           stritems.insert(V->VerStr);
+        if (V->Section != 0)
+           stritems.insert(V->Section);
+        stritems.insert(V->SourcePkgName);
+        stritems.insert(V->SourceVerStr);
+        for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; ++D)
+        {
+           if (D->Version != 0)
+              stritems.insert(D->Version);
+        }
+        for (pkgCache::DescIterator D = V.DescriptionList(); D.end() == false; ++D)
+        {
+           stritems.insert(D->md5sum);
+           stritems.insert(D->language_code);
+        }
+      }
+      for (pkgCache::PrvIterator Prv = P.ProvidesList(); Prv.end() == false; ++Prv)
+      {
+        if (Prv->ProvideVersion != 0)
+           stritems.insert(Prv->ProvideVersion);
+      }
+   }
+   for (pkgCache::RlsFileIterator F = Cache->RlsFileBegin(); F != Cache->RlsFileEnd(); ++F)
+   {
+      stritems.insert(F->FileName);
+      stritems.insert(F->Archive);
+      stritems.insert(F->Codename);
+      stritems.insert(F->Version);
+      stritems.insert(F->Origin);
+      stritems.insert(F->Label);
+      stritems.insert(F->Site);
+   }
+   for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F)
+   {
+      stritems.insert(F->FileName);
+      stritems.insert(F->Architecture);
+      stritems.insert(F->Component);
+      stritems.insert(F->IndexType);
+   }
+
+   unsigned long Size = 0;
+   for (std::set<map_stringitem_t>::const_iterator i = stritems.begin(); i != stritems.end(); ++i)
+      Size += strlen(Cache->StrP + *i) + 1;
+   cout << _("Total globbed strings: ") << stritems.size() << " (" << SizeToStr(Size) << ')' << endl;
+   stritems.clear();
+
+   unsigned long Slack = 0;
+   for (int I = 0; I != 7; I++)
+      Slack += Cache->Head().Pools[I].ItemSize*Cache->Head().Pools[I].Count;
+   cout << _("Total slack space: ") << SizeToStr(Slack) << endl;
+
+   unsigned long Total = 0;
+#define APT_CACHESIZE(X,Y) (Cache->Head().X * Cache->Head().Y)
+   Total = Slack + Size +
+      APT_CACHESIZE(GroupCount, GroupSz) +
+      APT_CACHESIZE(PackageCount, PackageSz) +
+      APT_CACHESIZE(VersionCount, VersionSz) +
+      APT_CACHESIZE(DescriptionCount, DescriptionSz) +
+      APT_CACHESIZE(DependsCount, DependencySz) +
+      APT_CACHESIZE(DependsDataCount, DependencyDataSz) +
+      APT_CACHESIZE(ReleaseFileCount, ReleaseFileSz) +
+      APT_CACHESIZE(PackageFileCount, PackageFileSz) +
+      APT_CACHESIZE(VerFileCount, VerFileSz) +
+      APT_CACHESIZE(DescFileCount, DescFileSz) +
+      APT_CACHESIZE(ProvidesCount, ProvidesSz) +
+      (2 * Cache->Head().GetHashTableSize() * sizeof(map_id_t));
+   cout << _("Total space accounted for: ") << SizeToStr(Total) << endl;
+#undef APT_CACHESIZE
+
+   // hashtable stats
+   ShowHashTableStats<pkgCache::Package>("PkgHashTable", Cache->PkgP, Cache->Head().PkgHashTableP(), Cache->Head().GetHashTableSize(), PackageNext);
+   ShowHashTableStats<pkgCache::Group>("GrpHashTable", Cache->GrpP, Cache->Head().GrpHashTableP(), Cache->Head().GetHashTableSize(), GroupNext);
+

    return true;
 }
                                                                        /*}}}*/
 // Dump - show everything                                              /*{{{*/
 // ---------------------------------------------------------------------
    return true;
 }
                                                                        /*}}}*/
 // Dump - show everything                                              /*{{{*/
 // ---------------------------------------------------------------------

-/* */
-bool Dump(pkgCache &Cache)
+/* This is worthless except fer debugging things */
+static bool Dump(CommandLine &)

 {
 {

-   for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++)
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+   if (unlikely(Cache == NULL))
+      return false;
+
+   std::cout << "Using Versioning System: " << Cache->VS->Label << std::endl;
+   
+   for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)

    {
    {

-      cout << "Package: " << P.Name() << endl;
-      for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; V++)
+      std::cout << "Package: " << P.FullName(true) << std::endl;
+      for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)

       {
       {

-        cout << " Version: " << V.VerStr() << endl;
-        cout << "     File: " << V.FileList().File().FileName() << endl;
-        for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; D++)
-           cout << "  Depends: " << D.TargetPkg().Name() << ' ' << D.TargetVer() << endl;
+        std::cout << " Version: " << V.VerStr() << std::endl;
+        std::cout << "     File: " << V.FileList().File().FileName() << std::endl;
+        for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; ++D)
+           std::cout << "  Depends: " << D.TargetPkg().FullName(true) << ' ' << 
+                            DeNull(D.TargetVer()) << std::endl;
+        for (pkgCache::DescIterator D = V.DescriptionList(); D.end() == false; ++D)
+        {
+           std::cout << " Description Language: " << D.LanguageCode() << std::endl
+                << "                 File: " << D.FileList().File().FileName() << std::endl
+                << "                  MD5: " << D.md5() << std::endl;
+        } 

       }      
    }
 
       }      
    }
 

-   for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++)
+   for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F.end() == false; ++F)

    {
    {

-      cout << "File: " << F.FileName() << endl;
-      cout << " Size: " << F->Size << endl;
-      cout << " ID: " << F->ID << endl;
-      cout << " Flags: " << F->Flags << endl;
-      cout << " Time: " << ctime(&F->mtime) << endl;
+      std::cout << "File: " << F.FileName() << std::endl;
+      std::cout << " Type: " << F.IndexType() << std::endl;
+      std::cout << " Size: " << F->Size << std::endl;
+      std::cout << " ID: " << F->ID << std::endl;
+      std::cout << " Flags: " << F->Flags << std::endl;
+      std::cout << " Time: " << TimeRFC1123(F->mtime) << std::endl;
+      std::cout << " Archive: " << DeNull(F.Archive()) << std::endl;
+      std::cout << " Component: " << DeNull(F.Component()) << std::endl;
+      std::cout << " Version: " << DeNull(F.Version()) << std::endl;
+      std::cout << " Origin: " << DeNull(F.Origin()) << std::endl;
+      std::cout << " Site: " << DeNull(F.Site()) << std::endl;
+      std::cout << " Label: " << DeNull(F.Label()) << std::endl;
+      std::cout << " Architecture: " << DeNull(F.Architecture()) << std::endl;

    }
 
    return true;
    }
 
    return true;


@@ -163,235 +395,764 @@ bool Dump(pkgCache &Cache)
                                                                        /*}}}*/
 // DumpAvail - Print out the available list                            /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // DumpAvail - Print out the available list                            /*{{{*/
 // ---------------------------------------------------------------------

-/* This is needed to make dpkg --merge happy */
-bool DumpAvail(pkgCache &Cache)
+/* This is needed to make dpkg --merge happy.. I spent a bit of time to 
+   make this run really fast, perhaps I went a little overboard.. */
+static bool DumpAvail(CommandLine &)

 {
 {

-   unsigned char *Buffer = new unsigned char[Cache.HeaderP->MaxVerFileSize];
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+   if (unlikely(Cache == NULL || CacheFile.BuildPolicy() == false))
+      return false;

 
 

-   for (pkgCache::PkgFileIterator I = Cache.FileBegin(); I.end() == false; I++)
-   {
-      if ((I->Flags & pkgCache::Flag::NotSource) != 0)
+   unsigned long Count = Cache->HeaderP->PackageCount+1;
+   pkgCache::VerFile **VFList = new pkgCache::VerFile *[Count];
+   memset(VFList,0,sizeof(*VFList)*Count);
+   
+   // Map versions that we want to write out onto the VerList array.
+   for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
+   {    
+      if (P->VersionList == 0)

         continue;
       
         continue;
       

-      if (I.IsOk() == false)
+      /* Find the proper version to use. If the policy says there are no
+         possible selections we return the installed version, if available..
+                This prevents dselect from making it obsolete. */
+      pkgCache::VerIterator V = CacheFile.GetPolicy()->GetCandidateVer(P);
+      if (V.end() == true)

       {
       {

-        delete [] Buffer;
-        return _error->Error("Package file %s is out of sync.",I.FileName());
+        if (P->CurrentVer == 0)
+           continue;
+        V = P.CurrentVer();

       }
       
       }
       

-      FileFd PkgF(I.FileName(),FileFd::ReadOnly);
-      if (_error->PendingError() == true)
+      pkgCache::VerFileIterator VF = V.FileList();
+      for (; VF.end() == false ; ++VF)
+        if ((VF.File()->Flags & pkgCache::Flag::NotSource) == 0)
+           break;
+      
+      /* Okay, here we have a bit of a problem.. The policy has selected the
+         currently installed package - however it only exists in the
+                status file.. We need to write out something or dselect will mark
+         the package as obsolete! Thus we emit the status file entry, but
+         below we remove the status line to make it valid for the 
+         available file. However! We only do this if their do exist *any*
+         non-source versions of the package - that way the dselect obsolete
+         handling works OK. */
+      if (VF.end() == true)

       {
       {

-        delete [] Buffer;
-        return false;
+        for (pkgCache::VerIterator Cur = P.VersionList(); Cur.end() != true; ++Cur)
+        {
+           for (VF = Cur.FileList(); VF.end() == false; ++VF)
+           {    
+              if ((VF.File()->Flags & pkgCache::Flag::NotSource) == 0)
+              {
+                 VF = V.FileList();
+                 break;
+              }
+           }
+           
+           if (VF.end() == false)
+              break;
+        }
+      }
+      
+      VFList[P->ID] = VF;
+   }
+   
+   LocalitySort(VFList,Count,sizeof(*VFList));
+
+   std::vector<pkgTagSection::Tag> RW;
+   RW.push_back(pkgTagSection::Tag::Remove("Status"));
+   RW.push_back(pkgTagSection::Tag::Remove("Config-Version"));
+   FileFd stdoutfd;
+   stdoutfd.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly, false);
+
+   // Iterate over all the package files and write them out.
+   char *Buffer = new char[Cache->HeaderP->MaxVerFileSize+10];
+   for (pkgCache::VerFile **J = VFList; *J != 0;)
+   {
+      pkgCache::PkgFileIterator File(*Cache,(*J)->File + Cache->PkgFileP);
+      if (File.IsOk() == false)
+      {
+        _error->Error(_("Package file %s is out of sync."),File.FileName());
+        break;

       }
 
       }
 

-      /* Write all of the records from this package file, we search the entire
-         structure to find them */
-      for (pkgCache::PkgIterator P = Cache.PkgBegin(); P.end() == false; P++)
+      FileFd PkgF(File.FileName(),FileFd::ReadOnly, FileFd::Extension);
+      if (_error->PendingError() == true)
+        break;
+      
+      /* Write all of the records from this package file, since we
+                already did locality sorting we can now just seek through the
+                file in read order. We apply 1 more optimization here, since often
+                there will be < 1 byte gaps between records (for the \n) we read that
+                into the next buffer and offset a bit.. */
+      unsigned long Pos = 0;
+      for (; *J != 0; J++)

       {
       {

-        for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; V++)
+        if ((*J)->File + Cache->PkgFileP != File)
+           break;
+        
+        const pkgCache::VerFile &VF = **J;
+
+        // Read the record and then write it out again.
+        unsigned long Jitter = VF.Offset - Pos;
+        if (Jitter > 8)

         {
         {

-           if (V->FileList == 0)
-              continue;
-           if (V.FileList().File() != I)
-              continue;
-           
-           // Read the record and then write it out again.
-           if (PkgF.Seek(V.FileList()->Offset) == false ||
-               PkgF.Read(Buffer,V.FileList()->Size) == false ||
-               write(STDOUT_FILENO,Buffer,V.FileList()->Size) != V.FileList()->Size)
+           if (PkgF.Seek(VF.Offset) == false)
+              break;
+           Jitter = 0;
+        }
+        
+        if (PkgF.Read(Buffer,VF.Size + Jitter) == false)
+           break;
+        Buffer[VF.Size + Jitter] = '\n';
+
+        // See above..
+        if ((File->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource)
+        {
+           pkgTagSection Tags;
+           if (Tags.Scan(Buffer+Jitter,VF.Size+1) == false ||
+               Tags.Write(stdoutfd, NULL, RW) == false ||
+               stdoutfd.Write("\n", 1) == false)

            {
            {

-              delete [] Buffer;
-              return false;
-           }       
+              _error->Error("Internal Error, Unable to parse a package record");
+              break;
+           }

         }
         }

+        else
+        {
+           if (stdoutfd.Write(Buffer + Jitter, VF.Size + 1) == false)
+              break;
+        }
+
+        Pos = VF.Offset + VF.Size;

       }
       }

+
+      if (_error->PendingError() == true)
+         break;

    }
    }

-   
-   return true;
+
+   delete [] Buffer;
+   delete [] VFList;
+   return !_error->PendingError();

 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/

-// DoAdd - Perform an adding operation                                 /*{{{*/
+// xvcg - Generate a graph for xvcg                                    /*{{{*/

 // ---------------------------------------------------------------------
 // ---------------------------------------------------------------------

-/* */
-bool DoAdd(CommandLine &CmdL)
+// Code contributed from Junichi Uekawa <dancer@debian.org> on 20 June 2002.
+
+static bool XVcg(CommandLine &CmdL)

 {
 {

-   // Make sure there is at least one argument
-   if (CmdL.FileSize() <= 1)
-      return _error->Error("You must give at least one file name");
-   
-   // Open the cache
-   FileFd CacheF(_config->FindDir("Dir::Cache::srcpkgcache"),FileFd::ReadOnly);
-   if (_error->PendingError() == true)
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+   if (unlikely(Cache == NULL))

       return false;
       return false;

+
+   bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",false);

    
    

-   DynamicMMap Map(CacheF,MMap::Public);
-   if (_error->PendingError() == true)
-      return false;
+   /* Normal packages are boxes
+      Pure Provides are triangles
+      Mixed are diamonds
+      rhomb are missing packages*/
+   const char *Shapes[] = {"ellipse","triangle","box","rhomb"};
+   
+   /* Initialize the list of packages to show.
+      1 = To Show
+      2 = To Show no recurse
+      3 = Emitted no recurse
+      4 = Emitted
+      0 = None */
+   enum States {None=0, ToShow, ToShowNR, DoneNR, Done};
+   enum TheFlags {ForceNR=(1<<0)};
+   unsigned char *Show = new unsigned char[Cache->Head().PackageCount];
+   unsigned char *Flags = new unsigned char[Cache->Head().PackageCount];
+   unsigned char *ShapeMap = new unsigned char[Cache->Head().PackageCount];
+   
+   // Show everything if no arguments given
+   if (CmdL.FileList[1] == 0)
+      for (unsigned long I = 0; I != Cache->Head().PackageCount; I++)
+        Show[I] = ToShow;
+   else
+      for (unsigned long I = 0; I != Cache->Head().PackageCount; I++)
+        Show[I] = None;
+   memset(Flags,0,sizeof(*Flags)*Cache->Head().PackageCount);
+   
+   // Map the shapes
+   for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
+   {   
+      if (Pkg->VersionList == 0)
+      {
+        // Missing
+        if (Pkg->ProvidesList == 0)
+           ShapeMap[Pkg->ID] = 0;
+        else
+           ShapeMap[Pkg->ID] = 1;
+      }
+      else
+      {
+        // Normal
+        if (Pkg->ProvidesList == 0)
+           ShapeMap[Pkg->ID] = 2;
+        else
+           ShapeMap[Pkg->ID] = 3;
+      }
+   }

 
 

-   OpTextProgress Progress;
-   pkgCacheGenerator Gen(Map,Progress);
-   if (_error->PendingError() == true)
-      return false;
+   // Load the list of packages from the command line into the show list
+   APT::CacheSetHelper helper(true, GlobalError::NOTICE);
+   std::list<APT::CacheSetHelper::PkgModifier> mods;
+   mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::PackageSet::Modifier::POSTFIX));
+   mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::PackageSet::Modifier::POSTFIX));
+   std::map<unsigned short, APT::PackageSet> pkgsets =
+               APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper);

 
 

-   unsigned long Length = CmdL.FileSize() - 1;
-   for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+   for (APT::PackageSet::const_iterator Pkg = pkgsets[0].begin();
+       Pkg != pkgsets[0].end(); ++Pkg)
+      Show[Pkg->ID] = ToShow;
+   for (APT::PackageSet::const_iterator Pkg = pkgsets[1].begin();
+       Pkg != pkgsets[1].end(); ++Pkg)

    {
    {

-      Progress.OverallProgress(I - CmdL.FileList,Length,1,"Generating cache");
-      
-      // Do the merge
-      FileFd TagF(*I,FileFd::ReadOnly);
-      debListParser Parser(TagF);
-      if (_error->PendingError() == true)
-        return _error->Error("Problem opening %s",*I);
-      
-      if (Gen.SelectFile(*I) == false)
-        return _error->Error("Problem with SelectFile");
-        
-      if (Gen.MergeList(Parser) == false)
-        return _error->Error("Problem with MergeList");
+      Show[Pkg->ID] = ToShow;
+      Flags[Pkg->ID] |= ForceNR;

    }
 
    }
 

-   Progress.Done();
-   Stats(Gen.GetCache());
+   // Little header
+   cout << "graph: { title: \"packages\"" << endl <<
+     "xmax: 700 ymax: 700 x: 30 y: 30" << endl <<
+     "layout_downfactor: 8" << endl;
+
+   bool Act = true;
+   while (Act == true)
+   {
+      Act = false;
+      for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
+      {
+        // See we need to show this package
+        if (Show[Pkg->ID] == None || Show[Pkg->ID] >= DoneNR)
+           continue;
+
+        //printf ("node: { title: \"%s\" label: \"%s\" }\n", Pkg.Name(), Pkg.Name());
+        
+        // Colour as done
+        if (Show[Pkg->ID] == ToShowNR || (Flags[Pkg->ID] & ForceNR) == ForceNR)
+        {
+           // Pure Provides and missing packages have no deps!
+           if (ShapeMap[Pkg->ID] == 0 || ShapeMap[Pkg->ID] == 1)
+              Show[Pkg->ID] = Done;
+           else
+              Show[Pkg->ID] = DoneNR;
+        }       
+        else
+           Show[Pkg->ID] = Done;
+        Act = true;
+
+        // No deps to map out
+        if (Pkg->VersionList == 0 || Show[Pkg->ID] == DoneNR)
+           continue;
+        
+        pkgCache::VerIterator Ver = Pkg.VersionList();
+        for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; ++D)
+        {
+           // See if anything can meet this dep
+           // Walk along the actual package providing versions
+           bool Hit = false;
+           pkgCache::PkgIterator DPkg = D.TargetPkg();
+           for (pkgCache::VerIterator I = DPkg.VersionList();
+                     I.end() == false && Hit == false; ++I)
+           {
+              if (Cache->VS->CheckDep(I.VerStr(),D->CompareOp,D.TargetVer()) == true)
+                 Hit = true;
+           }
+           
+           // Follow all provides
+           for (pkgCache::PrvIterator I = DPkg.ProvidesList(); 
+                     I.end() == false && Hit == false; ++I)
+           {
+              if (Cache->VS->CheckDep(I.ProvideVersion(),D->CompareOp,D.TargetVer()) == false)
+                 Hit = true;
+           }
+           
+
+           // Only graph critical deps     
+           if (D.IsCritical() == true)
+           {
+              printf ("edge: { sourcename: \"%s\" targetname: \"%s\" class: 2 ",Pkg.FullName(true).c_str(), D.TargetPkg().FullName(true).c_str() );
+              
+              // Colour the node for recursion
+              if (Show[D.TargetPkg()->ID] <= DoneNR)
+              {
+                 /* If a conflicts does not meet anything in the database
+                    then show the relation but do not recurse */
+                 if (Hit == false && D.IsNegative() == true)
+                 {
+                    if (Show[D.TargetPkg()->ID] == None && 
+                        Show[D.TargetPkg()->ID] != ToShow)
+                       Show[D.TargetPkg()->ID] = ToShowNR;
+                 }               
+                 else
+                 {
+                    if (GivenOnly == true && Show[D.TargetPkg()->ID] != ToShow)
+                       Show[D.TargetPkg()->ID] = ToShowNR;
+                    else
+                       Show[D.TargetPkg()->ID] = ToShow;
+                 }
+              }
+              
+              // Edge colour
+              switch(D->Type)
+              {
+                 case pkgCache::Dep::Conflicts:
+                   printf("label: \"conflicts\" color: lightgreen }\n");
+                   break;
+                 case pkgCache::Dep::DpkgBreaks:
+                   printf("label: \"breaks\" color: lightgreen }\n");
+                   break;
+                 case pkgCache::Dep::Obsoletes:
+                   printf("label: \"obsoletes\" color: lightgreen }\n");
+                   break;
+                 
+                 case pkgCache::Dep::PreDepends:
+                   printf("label: \"predepends\" color: blue }\n");
+                   break;
+                 
+                 default:
+                   printf("}\n");
+                 break;
+              }               
+           }       
+        }
+      }
+   }   

    
    

+   /* Draw the box colours after the fact since we can not tell what colour
+      they should be until everything is finished drawing */
+   for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
+   {
+      if (Show[Pkg->ID] < DoneNR)
+        continue;
+
+      if (Show[Pkg->ID] == DoneNR)
+        printf("node: { title: \"%s\" label: \"%s\" color: orange shape: %s }\n", Pkg.FullName(true).c_str(), Pkg.FullName(true).c_str(),
+               Shapes[ShapeMap[Pkg->ID]]);
+      else
+       printf("node: { title: \"%s\" label: \"%s\" shape: %s }\n", Pkg.FullName(true).c_str(), Pkg.FullName(true).c_str(),
+               Shapes[ShapeMap[Pkg->ID]]);
+      
+   }
+
+   delete[] Show;
+   delete[] Flags;
+   delete[] ShapeMap;
+
+   printf("}\n");

    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/

-// GenCaches - Call the main cache generator                           /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool GenCaches()
-{
-   OpTextProgress Progress;
-   pkgSourceList List;
-   List.ReadMainList();
-   return pkgMakeStatusCache(List,Progress);  
-}
-                                                                       /*}}}*/
-// ShowHelp - Show a help screen                                       /*{{{*/
+// Dotty - Generate a graph for Dotty                                  /*{{{*/

 // ---------------------------------------------------------------------
 // ---------------------------------------------------------------------

-/* */
-int ShowHelp()
+/* Dotty is the graphvis program for generating graphs. It is a fairly
+   simple queuing algorithm that just writes dependencies and nodes. 
+   http://www.research.att.com/sw/tools/graphviz/ */
+static bool Dotty(CommandLine &CmdL)

 {
 {

-   cout << PACKAGE << ' ' << VERSION << " for " << ARCHITECTURE <<
-       " compiled on " << __DATE__ << "  " << __TIME__ << endl;
-   
-   cout << "Usage: apt-cache [options] command" << endl;
-   cout << "       apt-cache [options] add file1 [file1 ...]" << endl;
-   cout << "       apt-cache [options] showpkg pkg2 [pkg2 ...]" << endl;
-   cout << endl;
-   cout << "apt-cache is a low-level tool used to manipulate APT's binary" << endl;
-   cout << "cache files stored in " << _config->FindDir("Dir::Cache") << endl;
-   cout << "It is not ment for ordinary use only as a debug aide." << endl;
-   cout << endl;
-   cout << "Commands:" << endl;
-   cout << "   add - Add an package file to the source cache" << endl;
-   cout << "   gencaches - Build both the package and source cache" << endl;
-   cout << "   showpkg - Show some general information for a single package" << endl;
-   cout << "   stats - Show some basic statistics" << endl;
-   cout << "   dump - Show the entire file in a terse form" << endl;
-   cout << "   dumpavail - Print an available file to stdout" << endl;
-   cout << endl;
-   cout << "Options:" << endl;
-   cout << "  -h   This help text." << endl;
-   cout << "  -p=? The package cache. [" << _config->FindDir("Dir::Cache::pkgcache") << ']' << endl;
-   cout << "  -s=? The source cache. [" << _config->FindDir("Dir::Cache::srcpkgcache") << ']' << endl;
-   cout << "  -q   Disable progress indicator. " << endl;
-   cout << "  -c=? Read this configuration file" << endl;
-   cout << "  -o=? Set an arbitary configuration option, ie -o dir::cache=/tmp" << endl;
-   cout << "See the apt-cache(8) and apt.conf(8) manual pages for more information." << endl;
-   return 100;
-}
-                                                                       /*}}}*/
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+   if (unlikely(Cache == NULL))
+      return false;

 
 

-int main(int argc,const char *argv[])
-{
-   CommandLine::Args Args[] = {
-      {'h',"help","help",0},
-      {'p',"pkg-cache","Dir::Cache::pkgcache",CommandLine::HasArg},
-      {'s',"src-cache","Dir::Cache::srcpkgcache",CommandLine::HasArg},
-      {'q',"quiet","quiet",CommandLine::IntLevel},
-      {'c',"config-file",0,CommandLine::ConfigFile},
-      {'o',"option",0,CommandLine::ArbItem},
-      {0,0,0,0}};
+   bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",false);

    
    

-   // Parse the command line and initialize the package library
-   CommandLine CmdL(Args,_config);
-   if (pkgInitialize(*_config) == false ||
-       CmdL.Parse(argc,argv) == false)
+   /* Normal packages are boxes
+      Pure Provides are triangles
+      Mixed are diamonds
+      Hexagons are missing packages*/
+   const char *Shapes[] = {"hexagon","triangle","box","diamond"};
+   
+   /* Initialize the list of packages to show.
+      1 = To Show
+      2 = To Show no recurse
+      3 = Emitted no recurse
+      4 = Emitted
+      0 = None */
+   enum States {None=0, ToShow, ToShowNR, DoneNR, Done};
+   enum TheFlags {ForceNR=(1<<0)};
+   unsigned char *Show = new unsigned char[Cache->Head().PackageCount];
+   unsigned char *Flags = new unsigned char[Cache->Head().PackageCount];
+   unsigned char *ShapeMap = new unsigned char[Cache->Head().PackageCount];
+   
+   // Show everything if no arguments given
+   if (CmdL.FileList[1] == 0)
+      for (unsigned long I = 0; I != Cache->Head().PackageCount; I++)
+        Show[I] = ToShow;
+   else
+      for (unsigned long I = 0; I != Cache->Head().PackageCount; I++)
+        Show[I] = None;
+   memset(Flags,0,sizeof(*Flags)*Cache->Head().PackageCount);
+   
+   // Map the shapes
+   for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
+   {   
+      if (Pkg->VersionList == 0)
+      {
+        // Missing
+        if (Pkg->ProvidesList == 0)
+           ShapeMap[Pkg->ID] = 0;
+        else
+           ShapeMap[Pkg->ID] = 1;
+      }
+      else
+      {
+        // Normal
+        if (Pkg->ProvidesList == 0)
+           ShapeMap[Pkg->ID] = 2;
+        else
+           ShapeMap[Pkg->ID] = 3;
+      }
+   }
+
+   // Load the list of packages from the command line into the show list
+   APT::CacheSetHelper helper(true, GlobalError::NOTICE);
+   std::list<APT::CacheSetHelper::PkgModifier> mods;
+   mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::PackageSet::Modifier::POSTFIX));
+   mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::PackageSet::Modifier::POSTFIX));
+   std::map<unsigned short, APT::PackageSet> pkgsets =
+               APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper);
+
+   for (APT::PackageSet::const_iterator Pkg = pkgsets[0].begin();
+       Pkg != pkgsets[0].end(); ++Pkg)
+      Show[Pkg->ID] = ToShow;
+   for (APT::PackageSet::const_iterator Pkg = pkgsets[1].begin();
+       Pkg != pkgsets[1].end(); ++Pkg)

    {
    {

-      _error->DumpErrors();
-      return 100;
+      Show[Pkg->ID] = ToShow;
+      Flags[Pkg->ID] |= ForceNR;

    }
 
    }
 

-   // See if the help should be shown
-   if (_config->FindB("help") == true ||
-       CmdL.FileSize() == 0)
-      return ShowHelp();
+   // Little header
+   printf("digraph packages {\n");
+   printf("concentrate=true;\n");
+   printf("size=\"30,40\";\n");

    
    

-   while (1)
+   bool Act = true;
+   while (Act == true)

    {
    {

-      if (strcmp(CmdL.FileList[0],"add") == 0)
+      Act = false;
+      for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)

       {
       {

-        DoAdd(CmdL);
-        break;
-      }
+        // See we need to show this package
+        if (Show[Pkg->ID] == None || Show[Pkg->ID] >= DoneNR)
+           continue;
+        
+        // Colour as done
+        if (Show[Pkg->ID] == ToShowNR || (Flags[Pkg->ID] & ForceNR) == ForceNR)
+        {
+           // Pure Provides and missing packages have no deps!
+           if (ShapeMap[Pkg->ID] == 0 || ShapeMap[Pkg->ID] == 1)
+              Show[Pkg->ID] = Done;
+           else
+              Show[Pkg->ID] = DoneNR;
+        }       
+        else
+           Show[Pkg->ID] = Done;
+        Act = true;

 
 

-      if (strcmp(CmdL.FileList[0],"gencaches") == 0)
-      {
-        GenCaches();
-        break;
+        // No deps to map out
+        if (Pkg->VersionList == 0 || Show[Pkg->ID] == DoneNR)
+           continue;
+        
+        pkgCache::VerIterator Ver = Pkg.VersionList();
+        for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; ++D)
+        {
+           // See if anything can meet this dep
+           // Walk along the actual package providing versions
+           bool Hit = false;
+           pkgCache::PkgIterator DPkg = D.TargetPkg();
+           for (pkgCache::VerIterator I = DPkg.VersionList();
+                     I.end() == false && Hit == false; ++I)
+           {
+              if (Cache->VS->CheckDep(I.VerStr(),D->CompareOp,D.TargetVer()) == true)
+                 Hit = true;
+           }
+           
+           // Follow all provides
+           for (pkgCache::PrvIterator I = DPkg.ProvidesList(); 
+                     I.end() == false && Hit == false; ++I)
+           {
+              if (Cache->VS->CheckDep(I.ProvideVersion(),D->CompareOp,D.TargetVer()) == false)
+                 Hit = true;
+           }
+           
+           // Only graph critical deps     
+           if (D.IsCritical() == true)
+           {
+              printf("\"%s\" -> \"%s\"",Pkg.FullName(true).c_str(),D.TargetPkg().FullName(true).c_str());
+              
+              // Colour the node for recursion
+              if (Show[D.TargetPkg()->ID] <= DoneNR)
+              {
+                 /* If a conflicts does not meet anything in the database
+                    then show the relation but do not recurse */
+                 if (Hit == false && D.IsNegative() == true)
+                 {
+                    if (Show[D.TargetPkg()->ID] == None && 
+                        Show[D.TargetPkg()->ID] != ToShow)
+                       Show[D.TargetPkg()->ID] = ToShowNR;
+                 }               
+                 else
+                 {
+                    if (GivenOnly == true && Show[D.TargetPkg()->ID] != ToShow)
+                       Show[D.TargetPkg()->ID] = ToShowNR;
+                    else
+                       Show[D.TargetPkg()->ID] = ToShow;
+                 }
+              }
+              
+              // Edge colour
+              switch(D->Type)
+              {
+                 case pkgCache::Dep::Conflicts:
+                 case pkgCache::Dep::Obsoletes:
+                 case pkgCache::Dep::DpkgBreaks:
+                 printf("[color=springgreen];\n");
+                 break;
+                 
+                 case pkgCache::Dep::PreDepends:
+                 printf("[color=blue];\n");
+                 break;
+                 
+                 default:
+                 printf(";\n");
+                 break;
+              }               
+           }       
+        }

       }
       }

-
-      // Open the cache file
-      FileFd CacheF(_config->FindDir("Dir::Cache::pkgcache"),FileFd::ReadOnly);
-      if (_error->PendingError() == true)
-        break;
-      
-      MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
-      if (_error->PendingError() == true)
-        break;
+   }   
+   
+   /* Draw the box colours after the fact since we can not tell what colour
+      they should be until everything is finished drawing */
+   for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
+   {
+      if (Show[Pkg->ID] < DoneNR)
+        continue;

       
       

-      pkgCache Cache(Map);   
-      if (_error->PendingError() == true)
-        break;
+      // Orange box for early recursion stoppage
+      if (Show[Pkg->ID] == DoneNR)
+        printf("\"%s\" [color=orange,shape=%s];\n",Pkg.FullName(true).c_str(),
+               Shapes[ShapeMap[Pkg->ID]]);
+      else
+        printf("\"%s\" [shape=%s];\n",Pkg.FullName(true).c_str(),
+               Shapes[ShapeMap[Pkg->ID]]);
+   }
+   
+   printf("}\n");
+   delete[] Show;
+   delete[] Flags;
+   delete[] ShapeMap;
+   return true;
+}
+                                                                       /*}}}*/
+/* ShowAuto - show automatically installed packages (sorted)           {{{*/
+static bool ShowAuto(CommandLine &)
+{
+   pkgCacheFile CacheFile;
+   pkgCache *Cache = CacheFile.GetPkgCache();
+   pkgDepCache *DepCache = CacheFile.GetDepCache();
+   if (unlikely(Cache == NULL || DepCache == NULL))
+      return false;
+
+   std::vector<string> packages;
+   packages.reserve(Cache->HeaderP->PackageCount / 3);
+   
+   for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
+      if ((*DepCache)[P].Flags & pkgCache::Flag::Auto)
+         packages.push_back(P.Name());
+
+    std::sort(packages.begin(), packages.end());

     
     

-      if (strcmp(CmdL.FileList[0],"showpkg") == 0)
-      {
-        DumpPackage(Cache,CmdL);
-        break;
-      }
+    for (vector<string>::iterator I = packages.begin(); I != packages.end(); ++I)
+            cout << *I << "\n";
+
+   _error->Notice(_("This command is deprecated. Please use 'apt-mark showauto' instead."));
+   return true;
+}
+                                                                       /*}}}*/
+// ShowPkgNames - Show package names                                   /*{{{*/
+// ---------------------------------------------------------------------
+/* This does a prefix match on the first argument */
+static bool ShowPkgNames(CommandLine &CmdL)
+{
+   pkgCacheFile CacheFile;
+   if (unlikely(CacheFile.BuildCaches(NULL, false) == false))
+      return false;
+   pkgCache::GrpIterator I = CacheFile.GetPkgCache()->GrpBegin();
+   bool const All = _config->FindB("APT::Cache::AllNames","false");

 
 

-      if (strcmp(CmdL.FileList[0],"stats") == 0)
+   if (CmdL.FileList[1] != 0)
+   {
+      for (;I.end() != true; ++I)

       {
       {

-        Stats(Cache);
-        break;
+        if (All == false && I->FirstPackage == 0)
+           continue;
+        if (I.FindPkg("any")->VersionList == 0)
+           continue;
+        if (strncmp(I.Name(),CmdL.FileList[1],strlen(CmdL.FileList[1])) == 0)
+           cout << I.Name() << endl;

       }
       }

-      
-      if (strcmp(CmdL.FileList[0],"dump") == 0)
+
+      return true;
+   }
+   
+   // Show all pkgs
+   for (;I.end() != true; ++I)
+   {
+      if (All == false && I->FirstPackage == 0)
+        continue;
+      if (I.FindPkg("any")->VersionList == 0)
+        continue;
+      cout << I.Name() << endl;
+   }
+   
+   return true;
+}
+                                                                       /*}}}*/
+// Madison - Look a bit like katie's madison                           /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static bool Madison(CommandLine &CmdL)
+{
+   pkgCacheFile CacheFile;
+   pkgSourceList *SrcList = CacheFile.GetSourceList();
+
+   if (SrcList == 0)
+      return false;
+
+   // Create the src text record parsers and ignore errors about missing
+   // deb-src lines that are generated from pkgSrcRecords::pkgSrcRecords
+   pkgSrcRecords SrcRecs(*SrcList);
+   if (_error->PendingError() == true)
+      _error->Discard();
+
+   APT::CacheSetHelper helper(true, GlobalError::NOTICE);
+   for (const char **I = CmdL.FileList + 1; *I != 0; I++)
+   {
+      _error->PushToStack();
+      APT::PackageList pkgset = APT::PackageList::FromString(CacheFile, *I, helper);
+      for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)

       {
       {

-        Dump(Cache);
-        break;
+         for (pkgCache::VerIterator V = Pkg.VersionList(); V.end() == false; ++V)
+         {
+            for (pkgCache::VerFileIterator VF = V.FileList(); VF.end() == false; ++VF)
+            {
+// This might be nice, but wouldn't uniquely identify the source -mdz
+//                if (VF.File().Archive() != 0)
+//                {
+//                   cout << setw(10) << Pkg.Name() << " | " << setw(10) << V.VerStr() << " | "
+//                        << VF.File().Archive() << endl;
+//                }
+
+               // Locate the associated index files so we can derive a description
+               for (pkgSourceList::const_iterator S = SrcList->begin(); S != SrcList->end(); ++S)
+               {
+                    vector<pkgIndexFile *> *Indexes = (*S)->GetIndexFiles();
+                    for (vector<pkgIndexFile *>::const_iterator IF = Indexes->begin();
+                         IF != Indexes->end(); ++IF)
+                    {
+                         if ((*IF)->FindInCache(*(VF.File().Cache())) == VF.File())
+                         {
+                                   cout << setw(10) << Pkg.FullName(true) << " | " << setw(10) << V.VerStr() << " | "
+                                        << (*IF)->Describe(true) << endl;
+                         }
+                    }
+               }
+            }
+         }

       }
       }

-      
-      if (strcmp(CmdL.FileList[0],"dumpavail") == 0)
+
+      SrcRecs.Restart();
+      pkgSrcRecords::Parser *SrcParser;
+      bool foundSomething = false;
+      while ((SrcParser = SrcRecs.Find(*I, false)) != 0)

       {
       {

-        DumpAvail(Cache);
-        break;
+         foundSomething = true;
+         // Maybe support Release info here too eventually
+         cout << setw(10) << SrcParser->Package() << " | "
+              << setw(10) << SrcParser->Version() << " | "
+              << SrcParser->Index().Describe(true) << endl;

       }
       }

-            
-      _error->Error("Invalid operation %s", CmdL.FileList[0]);
-      break;
-   }
-   
-   // Print any errors or warnings found during parsing
-   if (_error->empty() == false)
-   {
-      _error->DumpErrors();
-      return 100;
+      if (foundSomething == true)
+        _error->RevertToStack();
+      else
+        _error->MergeWithStack();

    }
    }

-          
-   return 0;
+
+   return true;

 }
 }

+                                                                       /*}}}*/
+// GenCaches - Call the main cache generator                           /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+static bool GenCaches(CommandLine &)
+{
+   OpTextProgress Progress(*_config);
+
+   pkgCacheFile CacheFile;
+   return CacheFile.BuildCaches(&Progress, true);
+}
+                                                                       /*}}}*/
+static bool ShowHelp(CommandLine &)                                    /*{{{*/
+{
+   std::cout <<
+    _("Usage: apt-cache [options] command\n"
+      "       apt-cache [options] show pkg1 [pkg2 ...]\n"
+      "\n"
+      "apt-cache queries and displays available information about installed\n"
+      "and installable packages. It works exclusively on the data acquired\n"
+      "into the local cache via the 'update' command of e.g. apt-get. The\n"
+      "displayed information may therefore be outdated if the last update was\n"
+      "too long ago, but in exchange apt-cache works independently of the\n"
+      "availability of the configured sources (e.g. offline).\n");
+   return true;
+}
+                                                                       /*}}}*/
+static std::vector<aptDispatchWithHelp> GetCommands()                  /*{{{*/
+{
+   return {
+      {"gencaches",&GenCaches, nullptr},
+      {"showsrc",&ShowSrcPackage, _("Show source records")},
+      {"showpkg",&DumpPackage, nullptr},
+      {"stats",&Stats, nullptr},
+      {"dump",&Dump, nullptr},
+      {"dumpavail",&DumpAvail, nullptr},
+      {"unmet",&UnMet, nullptr},
+      {"search",&DoSearch, _("Search the package list for a regex pattern")},
+      {"depends",&Depends, _("Show raw dependency information for a package")},
+      {"rdepends",&RDepends, _("Show reverse dependency information for a package")},
+      {"dotty",&Dotty, nullptr},
+      {"xvcg",&XVcg, nullptr},
+      {"show",&ShowPackage, _("Show a readable record for the package")},
+      {"pkgnames",&ShowPkgNames, _("List the names of all packages in the system")},
+      {"showauto",&ShowAuto, nullptr},
+      {"policy",&Policy, _("Show policy settings")},
+      {"madison",&Madison, nullptr},
+      {nullptr, nullptr, nullptr}
+   };
+}
+                                                                       /*}}}*/
+int main(int argc,const char *argv[])                                  /*{{{*/
+{
+   InitLocale();
+
+   // Parse the command line and initialize the package library
+   CommandLine CmdL;
+   auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_CACHE, &_config, &_system, argc, argv, &ShowHelp, &GetCommands);
+
+   InitOutput();
+
+   if (_config->Exists("APT::Cache::Generate") == true)
+      _config->Set("pkgCacheFile::Generate", _config->FindB("APT::Cache::Generate", true));
+
+   return DispatchCommandLine(CmdL, Cmds);
+}
+                                                                       /*}}}*/