Fix compressed index retrieval for current timestamps

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

diff --git a/cmdline/apt-get.cc b/cmdline/apt-get.cc
index e9b619787ac9e1c45511a39af0bb189fe9bcdeb5..3c90354b013d10497cb321d5d5bcd4c3dd2c400d 100644 (file)
--- a/cmdline/apt-get.cc
+++ b/cmdline/apt-get.cc
@@ -53,6 +53,7 @@
 #include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <termios.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>

+#include <sys/statfs.h>

 #include <sys/statvfs.h>
 #include <signal.h>
 #include <unistd.h>
 #include <sys/statvfs.h>
 #include <signal.h>
 #include <unistd.h>


@@ -63,6 +64,8 @@
 #include <sstream>
                                                                        /*}}}*/
 
 #include <sstream>
                                                                        /*}}}*/
 

+#define RAMFS_MAGIC     0x858458f6
+

 using namespace std;
 
 ostream c0out(0);
 using namespace std;
 
 ostream c0out(0);


@@ -108,6 +111,9 @@ class CacheFile : public pkgCacheFile
         return Open(true);
    }
    CacheFile() : List(0) {};
         return Open(true);
    }
    CacheFile() : List(0) {};

+   ~CacheFile() {
+      delete[] List;
+   }

 };
                                                                        /*}}}*/
 
 };
                                                                        /*}}}*/
 


@@ -591,7 +597,6 @@ void Stats(ostream &out,pkgDepCache &Dep)
               Dep.BadCount());
 }
                                                                        /*}}}*/
               Dep.BadCount());
 }
                                                                        /*}}}*/

-

 // CacheFile::NameComp - QSort compare by name                         /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // CacheFile::NameComp - QSort compare by name                         /*{{{*/
 // ---------------------------------------------------------------------
 /* */


@@ -684,7 +689,10 @@ bool CacheFile::CheckDeps(bool AllowBroken)
       
    return true;
 }
       
    return true;
 }

-
+                                                                       /*}}}*/
+// CheckAuth - check if each download comes form a trusted source      /*{{{*/
+// ---------------------------------------------------------------------
+/* */

 static bool CheckAuth(pkgAcquire& Fetcher)
 {
    string UntrustedList;
 static bool CheckAuth(pkgAcquire& Fetcher)
 {
    string UntrustedList;


@@ -725,10 +733,7 @@ static bool CheckAuth(pkgAcquire& Fetcher)
 
    return _error->Error(_("There are problems and -y was used without --force-yes"));
 }
 
    return _error->Error(_("There are problems and -y was used without --force-yes"));
 }

-
-

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

-

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


@@ -835,16 +840,16 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask = true,
    if (DebBytes != FetchBytes)
       ioprintf(c1out,_("Need to get %sB/%sB of archives.\n"),
               SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());
    if (DebBytes != FetchBytes)
       ioprintf(c1out,_("Need to get %sB/%sB of archives.\n"),
               SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());

-   else
+   else if (DebBytes != 0)

       ioprintf(c1out,_("Need to get %sB of archives.\n"),
               SizeToStr(DebBytes).c_str());
 
    // Size delta
    if (Cache->UsrSize() >= 0)
       ioprintf(c1out,_("Need to get %sB of archives.\n"),
               SizeToStr(DebBytes).c_str());
 
    // Size delta
    if (Cache->UsrSize() >= 0)

-      ioprintf(c1out,_("After unpacking %sB of additional disk space will be used.\n"),
+      ioprintf(c1out,_("After this operation, %sB of additional disk space will be used.\n"),

               SizeToStr(Cache->UsrSize()).c_str());
    else
               SizeToStr(Cache->UsrSize()).c_str());
    else

-      ioprintf(c1out,_("After unpacking %sB disk space will be freed.\n"),
+      ioprintf(c1out,_("After this operation, %sB disk space will be freed.\n"),

               SizeToStr(-1*Cache->UsrSize()).c_str());
 
    if (_error->PendingError() == true)
               SizeToStr(-1*Cache->UsrSize()).c_str());
 
    if (_error->PendingError() == true)


@@ -857,12 +862,24 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask = true,
    {
       struct statvfs Buf;
       string OutputDir = _config->FindDir("Dir::Cache::Archives");
    {
       struct statvfs Buf;
       string OutputDir = _config->FindDir("Dir::Cache::Archives");

-      if (statvfs(OutputDir.c_str(),&Buf) != 0)
-        return _error->Errno("statvfs",_("Couldn't determine free space in %s"),
-                             OutputDir.c_str());
-      if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
-        return _error->Error(_("You don't have enough free space in %s."),
-                             OutputDir.c_str());
+      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
    }
    
    // Fail safe check


@@ -918,7 +935,7 @@ bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask = true,
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 

-              I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
+              I->Owner->FileSize << ' ' << I->Owner->HashSum() << endl;

       return true;
    }
 
       return true;
    }
 


@@ -1036,17 +1053,42 @@ bool TryToInstall(pkgCache::PkgIterator Pkg,pkgDepCache &Cache,
                  pkgProblemResolver &Fix,bool Remove,bool BrokenFix,
                  unsigned int &ExpectedInst,bool AllowFail = true)
 {
                  pkgProblemResolver &Fix,bool Remove,bool BrokenFix,
                  unsigned int &ExpectedInst,bool AllowFail = true)
 {

-   /* This is a pure virtual package and there is a single available 
-      provides */
-   if (Cache[Pkg].CandidateVer == 0 && Pkg->ProvidesList != 0 &&
-       Pkg.ProvidesList()->NextProvides == 0)
+   /* This is a pure virtual package and there is a single available
+      candidate providing it. */
+   if (Cache[Pkg].CandidateVer == 0 && Pkg->ProvidesList != 0)

    {
    {

-      pkgCache::PkgIterator Tmp = Pkg.ProvidesList().OwnerPkg();
-      ioprintf(c1out,_("Note, selecting %s instead of %s\n"),
-              Tmp.Name(),Pkg.Name());
-      Pkg = Tmp;
+      pkgCache::PkgIterator Prov;
+      bool found_one = false;
+
+      for (pkgCache::PrvIterator P = Pkg.ProvidesList(); P; P++)
+      {
+        pkgCache::VerIterator const PVer = P.OwnerVer();
+        pkgCache::PkgIterator const PPkg = PVer.ParentPkg();
+
+        /* Ignore versions that are not a candidate. */
+        if (Cache[PPkg].CandidateVer != PVer)
+            continue;
+
+        if (found_one == false)
+        {
+           Prov = PPkg;
+           found_one = true;
+        }
+        else if (PPkg != Prov)
+        {
+           found_one = false; // we found at least two
+           break;
+        }
+      }
+
+      if (found_one == true)
+      {
+        ioprintf(c1out,_("Note, selecting %s instead of %s\n"),
+                 Prov.Name(),Pkg.Name());
+        Pkg = Prov;
+      }

    }
    }

-   
+

    // Handle the no-upgrade case
    if (_config->FindB("APT::Get::upgrade",true) == false &&
        Pkg->CurrentVer != 0)
    // Handle the no-upgrade case
    if (_config->FindB("APT::Get::upgrade",true) == false &&
        Pkg->CurrentVer != 0)


@@ -1205,122 +1247,157 @@ pkgSrcRecords::Parser *FindSrc(const char *Name,pkgRecords &Recs,
                               pkgSrcRecords &SrcRecs,string &Src,
                               pkgDepCache &Cache)
 {
                               pkgSrcRecords &SrcRecs,string &Src,
                               pkgDepCache &Cache)
 {

-   // We want to pull the version off the package specification..

    string VerTag;
    string VerTag;

+   string DefRel = _config->Find("APT::Default-Release");

    string TmpSrc = Name;
    string TmpSrc = Name;

-   string::size_type Slash = TmpSrc.rfind('=');

 
 

-   // honor default release
-   string DefRel = _config->Find("APT::Default-Release");
-   pkgCache::PkgIterator Pkg = Cache.FindPkg(TmpSrc);
+   // extract the version/release from the pkgname
+   const size_t found = TmpSrc.find_last_of("/=");
+   if (found != string::npos) {
+      if (TmpSrc[found] == '/')
+        DefRel = TmpSrc.substr(found+1);
+      else
+        VerTag = TmpSrc.substr(found+1);
+      TmpSrc = TmpSrc.substr(0,found);
+   }

 
 

-   if (Slash != string::npos)
-   {
-      VerTag = string(TmpSrc.begin() + Slash + 1,TmpSrc.end());
-      TmpSrc = string(TmpSrc.begin(),TmpSrc.begin() + Slash);
-   } 
-   else  if(!Pkg.end() && DefRel.empty() == false)
+   /* Lookup the version of the package we would install if we were to
+      install a version and determine the source package name, then look
+      in the archive for a source package of the same name. */
+   bool MatchSrcOnly = _config->FindB("APT::Get::Only-Source");
+   const pkgCache::PkgIterator Pkg = Cache.FindPkg(TmpSrc);
+   if (MatchSrcOnly == false && Pkg.end() == false) 

    {
    {

-      // we have a default release, try to locate the pkg. we do it like
-      // this because GetCandidateVer() will not "downgrade", that means
-      // "apt-get source -t stable apt" won't work on a unstable system
-      for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; 
-          Ver++)
+      if(VerTag.empty() == false || DefRel.empty() == false) 

       {
       {

-        for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false;
-             VF++)
+        // we have a default release, try to locate the pkg. we do it like
+        // this because GetCandidateVer() will not "downgrade", that means
+        // "apt-get source -t stable apt" won't work on a unstable system
+        for (pkgCache::VerIterator Ver = Pkg.VersionList();
+             Ver.end() == false; Ver++) 

         {
         {

-           /* If this is the status file, and the current version is not the
-              version in the status file (ie it is not installed, or somesuch)
-              then it is not a candidate for installation, ever. This weeds
-              out bogus entries that may be due to config-file states, or
-              other. */
-           if ((VF.File()->Flags & pkgCache::Flag::NotSource) == 
-               pkgCache::Flag::NotSource && Pkg.CurrentVer() != Ver)
-           continue;
-           
-           //std::cout << VF.File().Archive() << std::endl;
-           if(VF.File().Archive() && (VF.File().Archive() == DefRel)) 
+           for (pkgCache::VerFileIterator VF = Ver.FileList();
+                VF.end() == false; VF++) 

            {
            {

-              VerTag = Ver.VerStr();
+              /* If this is the status file, and the current version is not the
+                 version in the status file (ie it is not installed, or somesuch)
+                 then it is not a candidate for installation, ever. This weeds
+                 out bogus entries that may be due to config-file states, or
+                 other. */
+              if ((VF.File()->Flags & pkgCache::Flag::NotSource) ==
+                  pkgCache::Flag::NotSource && Pkg.CurrentVer() != Ver)
+                 continue;
+
+              // We match against a concrete version (or a part of this version)
+              if (VerTag.empty() == false && strncmp(VerTag.c_str(), Ver.VerStr(), VerTag.size()) != 0)
+                 continue;
+
+              // or we match against a release
+              if(VerTag.empty() == false ||
+                 (VF.File().Archive() != 0 && VF.File().Archive() == DefRel) ||
+                 (VF.File().Codename() != 0 && VF.File().Codename() == DefRel)) 
+              {
+                 pkgRecords::Parser &Parse = Recs.Lookup(VF);
+                 Src = Parse.SourcePkg();
+                 // no SourcePkg name, so it is the "binary" name
+                 if (Src.empty() == true)
+                    Src = TmpSrc;
+                 // no Version, so we try the Version of the SourcePkg -
+                 // and after that the version of the binary package
+                 if (VerTag.empty() == true)
+                    VerTag = Parse.SourceVer();
+                 if (VerTag.empty() == true)
+                    VerTag = Ver.VerStr();
+                 break;
+              }
+           }
+           if (Src.empty() == false)

               break;
               break;

+        }
+        if (Src.empty() == true) 
+        {
+           // Sources files have no codename information
+           if (VerTag.empty() == true && DefRel.empty() == false) 
+           {
+              _error->Error(_("Ignore unavailable target release '%s' of package '%s'"), DefRel.c_str(), TmpSrc.c_str());
+              return 0;

            }
         }
       }
            }
         }
       }

-   }
-
-   /* Lookup the version of the package we would install if we were to
-      install a version and determine the source package name, then look
-      in the archive for a source package of the same name. */
-   if (_config->FindB("APT::Get::Only-Source") == false)
-   {
-      if (Pkg.end() == false)
+      if (Src.empty() == true)

       {
       {

+        // if we don't have found a fitting package yet so we will
+        // choose a good candidate and proceed with that.
+        // Maybe we will find a source later on with the right VerTag

         pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
         pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);

-        if (Ver.end() == false)
+        if (Ver.end() == false) 

         {
            pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
            Src = Parse.SourcePkg();
         {
            pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
            Src = Parse.SourcePkg();

+           if (VerTag.empty() == true)
+              VerTag = Parse.SourceVer();

         }
         }

-      }   
+      }

    }
    }

-   
-   // No source package name..
+

    if (Src.empty() == true)
       Src = TmpSrc;
    if (Src.empty() == true)
       Src = TmpSrc;

-   
+   else 
+   {
+      /* if we have a source pkg name, make sure to only search
+        for srcpkg names, otherwise apt gets confused if there
+        is a binary package "pkg1" and a source package "pkg1"
+        with the same name but that comes from different packages */
+      MatchSrcOnly = true;
+      if (Src != TmpSrc) 
+      {
+        ioprintf(c1out, _("Picking '%s' as source package instead of '%s'\n"), Src.c_str(), TmpSrc.c_str());
+      }
+   }
+

    // The best hit
    pkgSrcRecords::Parser *Last = 0;
    unsigned long Offset = 0;
    string Version;
    // The best hit
    pkgSrcRecords::Parser *Last = 0;
    unsigned long Offset = 0;
    string Version;

-   bool IsMatch = false;
-   
-   // If we are matching by version then we need exact matches to be happy
-   if (VerTag.empty() == false)
-      IsMatch = true;
-   
+

    /* Iterate over all of the hits, which includes the resulting
       binary packages in the search */
    pkgSrcRecords::Parser *Parse;
    /* Iterate over all of the hits, which includes the resulting
       binary packages in the search */
    pkgSrcRecords::Parser *Parse;

-   SrcRecs.Restart();
-   while ((Parse = SrcRecs.Find(Src.c_str(),false)) != 0)
+   while (true) 

    {
    {

-      string Ver = Parse->Version();
-      
-      // Skip name mismatches
-      if (IsMatch == true && Parse->Package() != Src)
-        continue;
-      
-      if (VerTag.empty() == false)
+      SrcRecs.Restart();
+      while ((Parse = SrcRecs.Find(Src.c_str(), MatchSrcOnly)) != 0) 

       {
       {

-        /* Don't want to fall through because we are doing exact version 
-           matching. */
-        if (Cache.VS().CmpVersion(VerTag,Ver) != 0)
+        const string Ver = Parse->Version();
+
+        // Ignore all versions which doesn't fit
+        if (VerTag.empty() == false && strncmp(VerTag.c_str(), Ver.c_str(), VerTag.size()) != 0)

            continue;
            continue;

-        
-        Last = Parse;
-        Offset = Parse->Offset();
-        break;
+
+        // Newer version or an exact match? Save the hit
+        if (Last == 0 || Cache.VS().CmpVersion(Version,Ver) < 0) {
+           Last = Parse;
+           Offset = Parse->Offset();
+           Version = Ver;
+        }
+
+        // was the version check above an exact match? If so, we don't need to look further
+        if (VerTag.empty() == false && VerTag.size() == Ver.size())
+           break;

       }
       }

-                                 
-      // Newer version or an exact match
-      if (Last == 0 || Cache.VS().CmpVersion(Version,Ver) < 0 || 
-         (Parse->Package() == Src && IsMatch == false))
-      {
-        IsMatch = Parse->Package() == Src;
-        Last = Parse;
-        Offset = Parse->Offset();
-        Version = Ver;
-      }      
+      if (Last != 0 || VerTag.empty() == true)
+        break;
+      //if (VerTag.empty() == false && Last == 0)
+      _error->Error(_("Ignore unavailable version '%s' of package '%s'"), VerTag.c_str(), TmpSrc.c_str());
+      return 0;

    }
    }

-   
+

    if (Last == 0 || Last->Jump(Offset) == false)
       return 0;
    if (Last == 0 || Last->Jump(Offset) == false)
       return 0;

-   
+

    return Last;
 }
                                                                        /*}}}*/
    return Last;
 }
                                                                        /*}}}*/

-

 // DoUpdate - Update the package lists                                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // DoUpdate - Update the package lists                                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */


@@ -1343,14 +1420,15 @@ bool DoUpdate(CommandLine &CmdL)
         return _error->Error(_("Unable to lock the list directory"));
    }
    
         return _error->Error(_("Unable to lock the list directory"));
    }
    

-   // Create the download object
+   // Create the progress

    AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
    AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));

-   pkgAcquire Fetcher(&Stat);
-
-   
+      

    // Just print out the uris an exit if the --print-uris flag was used
    if (_config->FindB("APT::Get::Print-URIs") == true)
    {
    // Just print out the uris an exit if the --print-uris flag was used
    if (_config->FindB("APT::Get::Print-URIs") == true)
    {

+      // get a fetcher
+      pkgAcquire Fetcher(&Stat);
+

       // Populate it with the source selection and get all Indexes 
       // (GetAll=true)
       if (List.GetIndexes(&Fetcher,true) == false)
       // Populate it with the source selection and get all Indexes 
       // (GetAll=true)
       if (List.GetIndexes(&Fetcher,true) == false)


@@ -1359,58 +1437,19 @@ bool DoUpdate(CommandLine &CmdL)
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 

-              I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
+              I->Owner->FileSize << ' ' << I->Owner->HashSum() << endl;

       return true;
    }
 
       return true;
    }
 

-   // Populate it with the source selection
-   if (List.GetIndexes(&Fetcher) == false)
-        return false;
-   
-   // Run it
-   if (Fetcher.Run() == pkgAcquire::Failed)
-      return false;
-
-   bool Failed = false;
-   bool TransientNetworkFailure = false;
-   for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I != Fetcher.ItemsEnd(); I++)
-   {
-      if ((*I)->Status == pkgAcquire::Item::StatDone)
-        continue;
-
-      (*I)->Finished();
-
-      fprintf(stderr,_("Failed to fetch %s  %s\n"),(*I)->DescURI().c_str(),
-             (*I)->ErrorText.c_str());
-
-      if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError) 
-      {
-        TransientNetworkFailure = true;
-        continue;
-      }
-
-      Failed = true;
-   }
-   
-   // Clean out any old list files
-   if (!TransientNetworkFailure &&
-       _config->FindB("APT::Get::List-Cleanup",true) == true)
-   {
-      if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false ||
-         Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false)
-        return false;
-   }
-   
-   // Prepare the cache.   
+   // do the work

    CacheFile Cache;
    CacheFile Cache;

+   if (_config->FindB("APT::Get::Download",true) == true)
+       ListUpdate(Stat, List);
+
+   // Rebuild the cache.   

    if (Cache.BuildCaches() == false)
       return false;
    
    if (Cache.BuildCaches() == false)
       return false;
    

-   if (TransientNetworkFailure == true)
-      _error->Warning(_("Some index files failed to download, they have been ignored, or old ones used instead."));
-   else if (Failed == true)
-      return _error->Error(_("Some index files failed to download, they have been ignored, or old ones used instead."));
-

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


@@ -1422,20 +1461,29 @@ bool DoAutomaticRemove(CacheFile &Cache)
    bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
    bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);
    bool hideAutoRemove = _config->FindB("APT::Get::HideAutoRemove");
    bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
    bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);
    bool hideAutoRemove = _config->FindB("APT::Get::HideAutoRemove");

-   pkgDepCache::ActionGroup group(*Cache);

 
 

+   pkgDepCache::ActionGroup group(*Cache);

    if(Debug)
       std::cout << "DoAutomaticRemove()" << std::endl;
 
    if(Debug)
       std::cout << "DoAutomaticRemove()" << std::endl;
 

-   if (_config->FindB("APT::Get::Remove",true) == false &&
-       doAutoRemove == true)
+   // we don't want to autoremove and we don't want to see it, so why calculating?
+   if (doAutoRemove == false && hideAutoRemove == true)
+      return true;
+
+   if (doAutoRemove == true &&
+       _config->FindB("APT::Get::Remove",true) == false)

    {
       c1out << _("We are not supposed to delete stuff, can't start "
                 "AutoRemover") << std::endl;
    {
       c1out << _("We are not supposed to delete stuff, can't start "
                 "AutoRemover") << std::endl;

-      doAutoRemove = false;
+      return false;

    }
 
    }
 

+   bool purgePkgs = _config->FindB("APT::Get::Purge", false);
+   bool smallList = (hideAutoRemove == false &&
+       strcasecmp(_config->Find("APT::Get::HideAutoRemove","").c_str(),"small") == 0);
+

    string autoremovelist, autoremoveversions;
    string autoremovelist, autoremoveversions;

+   unsigned long autoRemoveCount = 0;

    // look over the cache to see what can be removed
    for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); ! Pkg.end(); ++Pkg)
    {
    // look over the cache to see what can be removed
    for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); ! Pkg.end(); ++Pkg)
    {


@@ -1444,30 +1492,45 @@ bool DoAutomaticRemove(CacheFile &Cache)
         if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())
            if(Debug)
               std::cout << "We could delete %s" <<  Pkg.Name() << std::endl;
         if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())
            if(Debug)
               std::cout << "We could delete %s" <<  Pkg.Name() << std::endl;

-         
-        // only show stuff in the list that is not yet marked for removal
-        if(Cache[Pkg].Delete() == false) 
-        {
-           autoremovelist += string(Pkg.Name()) + " ";
-           autoremoveversions += string(Cache[Pkg].CandVersion) + "\n";
-        }
+

         if (doAutoRemove)
         {
            if(Pkg.CurrentVer() != 0 && 
               Pkg->CurrentState != pkgCache::State::ConfigFiles)
         if (doAutoRemove)
         {
            if(Pkg.CurrentVer() != 0 && 
               Pkg->CurrentState != pkgCache::State::ConfigFiles)

-              Cache->MarkDelete(Pkg, _config->FindB("APT::Get::Purge", false));
+              Cache->MarkDelete(Pkg, purgePkgs);

            else
               Cache->MarkKeep(Pkg, false, false);
         }
            else
               Cache->MarkKeep(Pkg, false, false);
         }

+        else
+        {
+           // only show stuff in the list that is not yet marked for removal
+           if(Cache[Pkg].Delete() == false) 
+           {
+              ++autoRemoveCount;
+              // we don't need to fill the strings if we don't need them
+              if (smallList == false)
+              {
+                autoremovelist += string(Pkg.Name()) + " ";
+                autoremoveversions += string(Cache[Pkg].CandVersion) + "\n";
+              }
+           }
+        }

       }
    }
       }
    }

-   if (!hideAutoRemove) 
-      ShowList(c1out, _("The following packages were automatically installed and are no longer required:"), autoremovelist, autoremoveversions);
-   if (!doAutoRemove && !hideAutoRemove && autoremovelist.size() > 0)
+   // if we don't remove them, we should show them!
+   if (doAutoRemove == false && (autoremovelist.empty() == false || autoRemoveCount != 0))
+   {
+      if (smallList == false)
+        ShowList(c1out, P_("The following package is automatically installed and is no longer required:",
+                 "The following packages were automatically installed and are no longer required:",
+                 autoRemoveCount), autoremovelist, autoremoveversions);
+      else
+        ioprintf(c1out, P_("%lu package was automatically installed and is no longer required.\n",
+                 "%lu packages were automatically installed and are no longer required.\n", autoRemoveCount), autoRemoveCount);

       c1out << _("Use 'apt-get autoremove' to remove them.") << std::endl;
       c1out << _("Use 'apt-get autoremove' to remove them.") << std::endl;

-
-   // Now see if we destroyed anything
-   if (Cache->BrokenCount() != 0)
+   }
+   // Now see if we had destroyed anything (if we had done anything)
+   else if (Cache->BrokenCount() != 0)

    {
       c1out << _("Hmm, seems like the AutoRemover destroyed something which really\n"
                 "shouldn't happen. Please file a bug report against apt.") << endl;
    {
       c1out << _("Hmm, seems like the AutoRemover destroyed something which really\n"
                 "shouldn't happen. Please file a bug report against apt.") << endl;


@@ -1480,7 +1543,7 @@ bool DoAutomaticRemove(CacheFile &Cache)
    }
    return true;
 }
    }
    return true;
 }

-
+                                                                       /*}}}*/

 // DoUpgrade - Upgrade all packages                                    /*{{{*/
 // ---------------------------------------------------------------------
 /* Upgrade all packages without installing new packages or erasing old
 // DoUpgrade - Upgrade all packages                                    /*{{{*/
 // ---------------------------------------------------------------------
 /* Upgrade all packages without installing new packages or erasing old


@@ -1507,7 +1570,8 @@ bool DoUpgrade(CommandLine &CmdL)
 bool TryInstallTask(pkgDepCache &Cache, pkgProblemResolver &Fix, 
                    bool BrokenFix,
                    unsigned int& ExpectedInst, 
 bool TryInstallTask(pkgDepCache &Cache, pkgProblemResolver &Fix, 
                    bool BrokenFix,
                    unsigned int& ExpectedInst, 

-                   const char *taskname)
+                   const char *taskname,
+                   bool Remove)

 {
    const char *start, *end;
    pkgCache::PkgIterator Pkg;
 {
    const char *start, *end;
    pkgCache::PkgIterator Pkg;


@@ -1519,33 +1583,42 @@ bool TryInstallTask(pkgDepCache &Cache, pkgProblemResolver &Fix,
 
    // build regexp for the task
    char S[300];
 
    // build regexp for the task
    char S[300];

-   snprintf(S, sizeof(S), "^Task:.*[^a-z]%s[^a-z].*\n", taskname);
-   regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE);
+   snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", taskname);
+   if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0)
+      return _error->Error("Failed to compile task regexp");

    
    bool found = false;
    bool res = true;
    
    bool found = false;
    bool res = true;

-   for (Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
+
+   // two runs, first ignore dependencies, second install any missing
+   for(int IgnoreBroken=1; IgnoreBroken >= 0; IgnoreBroken--)

    {
    {

-      pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
-      if(ver.end())
-        continue;
-      pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
-      parser.GetRec(start,end);
-      strncpy(buf, start, end-start);
-      buf[end-start] = 0x0;
-      if (regexec(&Pattern,buf,0,0,0) != 0)
-        continue;
-      res &= TryToInstall(Pkg,Cache,Fix,false,true,ExpectedInst);
-      found = true;
+      for (Pkg = Cache.PkgBegin(); Pkg.end() == false; Pkg++)
+      {
+        pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
+        if(ver.end())
+           continue;
+        pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
+        parser.GetRec(start,end);
+        strncpy(buf, start, end-start);
+        buf[end-start] = 0x0;
+        if (regexec(&Pattern,buf,0,0,0) != 0)
+           continue;
+        res &= TryToInstall(Pkg,Cache,Fix,Remove,IgnoreBroken,ExpectedInst);
+        found = true;
+      }

    }
    
    }
    

+   // now let the problem resolver deal with any issues
+   Fix.Resolve(true);
+

    if(!found)
       _error->Error(_("Couldn't find task %s"),taskname);
 
    regfree(&Pattern);
    return res;
 }
    if(!found)
       _error->Error(_("Couldn't find task %s"),taskname);
 
    regfree(&Pattern);
    return res;
 }

-
+                                                                       /*}}}*/

 // DoInstall - Install packages from the command line                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Install named packages */
 // DoInstall - Install packages from the command line                  /*{{{*/
 // ---------------------------------------------------------------------
 /* Install named packages */


@@ -1579,7 +1652,6 @@ bool DoInstall(CommandLine &CmdL)
       _config->Set("APT::Get::AutomaticRemove", "true");
       DefRemove = true;
    }
       _config->Set("APT::Get::AutomaticRemove", "true");
       DefRemove = true;
    }

-

    // new scope for the ActionGroup
    {
       pkgDepCache::ActionGroup group(Cache);
    // new scope for the ActionGroup
    {
       pkgDepCache::ActionGroup group(Cache);


@@ -1604,7 +1676,7 @@ bool DoInstall(CommandLine &CmdL)
             // tasks must always be confirmed
             ExpectedInst += 1000;
             // see if we can install it
             // tasks must always be confirmed
             ExpectedInst += 1000;
             // see if we can install it

-            TryInstallTask(Cache, Fix, BrokenFix, ExpectedInst, S);
+            TryInstallTask(Cache, Fix, BrokenFix, ExpectedInst, S, Remove);

             continue;
          }
 
             continue;
          }
 


@@ -1707,9 +1779,11 @@ bool DoInstall(CommandLine &CmdL)
            // where foo is marked automatic
            if(!Remove && 
               Cache[Pkg].Install() == false && 
            // where foo is marked automatic
            if(!Remove && 
               Cache[Pkg].Install() == false && 

-              (Cache[Pkg].Flags & pkgCache::Flag::Auto))
+              (Cache[Pkg].Flags & pkgCache::Flag::Auto) &&
+              _config->FindB("APT::Get::ReInstall",false) == false &&
+              _config->FindB("APT::Get::Download-Only",false) == false)

            {
            {

-              ioprintf(c1out,_("%s set to manual installed.\n"),
+              ioprintf(c1out,_("%s set to manually installed.\n"),

                        Pkg.Name());
               Cache->MarkAuto(Pkg,false);
               AutoMarkChanged++;
                        Pkg.Name());
               Cache->MarkAuto(Pkg,false);
               AutoMarkChanged++;


@@ -1741,6 +1815,7 @@ bool DoInstall(CommandLine &CmdL)
              "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.") << endl;
              "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.") << endl;

+        /*

         if (Packages == 1)
         {
            c1out << endl;
         if (Packages == 1)
         {
            c1out << endl;


@@ -1749,6 +1824,7 @@ bool DoInstall(CommandLine &CmdL)
                 "the package is simply not installable and a bug report against\n" 
                 "that package should be filed.") << endl;
         }
                 "the package is simply not installable and a bug report against\n" 
                 "that package should be filed.") << endl;
         }

+        */

 
         c1out << _("The following information may help to resolve the situation:") << endl;
         c1out << endl;
 
         c1out << _("The following information may help to resolve the situation:") << endl;
         c1out << endl;


@@ -1881,7 +1957,8 @@ bool DoInstall(CommandLine &CmdL)
    // cache.commit()
    if (AutoMarkChanged > 0 &&
        Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
    // cache.commit()
    if (AutoMarkChanged > 0 &&
        Cache->DelCount() == 0 && Cache->InstCount() == 0 &&

-       Cache->BadCount() == 0)
+       Cache->BadCount() == 0 &&
+       _config->FindB("APT::Get::Simulate",false) == false)

       Cache->writeStateFile(NULL);
 
    // See if we need to prompt
       Cache->writeStateFile(NULL);
 
    // See if we need to prompt


@@ -2182,12 +2259,24 @@ bool DoSource(CommandLine &CmdL)
    // Check for enough free space
    struct statvfs Buf;
    string OutputDir = ".";
    // Check for enough free space
    struct statvfs Buf;
    string OutputDir = ".";

-   if (statvfs(OutputDir.c_str(),&Buf) != 0)
-      return _error->Errno("statvfs",_("Couldn't determine free space in %s"),
-                          OutputDir.c_str());
-   if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
-      return _error->Error(_("You don't have enough free space in %s"),
-                          OutputDir.c_str());
+   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());
+      }

    
    // Number of bytes
    if (DebBytes != FetchBytes)
    
    // Number of bytes
    if (DebBytes != FetchBytes)


@@ -2210,7 +2299,7 @@ bool DoSource(CommandLine &CmdL)
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 
       pkgAcquire::UriIterator I = Fetcher.UriBegin();
       for (; I != Fetcher.UriEnd(); I++)
         cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' << 

-              I->Owner->FileSize << ' ' << I->Owner->MD5Sum() << endl;
+              I->Owner->FileSize << ' ' << I->Owner->HashSum() << endl;

       return true;
    }
    
       return true;
    }
    


@@ -2470,6 +2559,7 @@ bool DoBuildDep(CommandLine &CmdL)
                            break;
                  }
                  if (CV.end() == true)
                            break;
                  }
                  if (CV.end() == true)

+                {

                   if (hasAlternatives)
                   {
                      continue;
                   if (hasAlternatives)
                   {
                      continue;


@@ -2482,6 +2572,7 @@ bool DoBuildDep(CommandLine &CmdL)
                                            Last->BuildDepType((*D).Type),Src.c_str(),
                                            (*D).Package.c_str());
                   }
                                            Last->BuildDepType((*D).Type),Src.c_str(),
                                            (*D).Package.c_str());
                   }

+                }

             }
             else
             {
             }
             else
             {


@@ -2526,6 +2617,8 @@ bool DoBuildDep(CommandLine &CmdL)
             {
                // We successfully installed something; skip remaining alternatives
                skipAlternatives = hasAlternatives;
             {
                // We successfully installed something; skip remaining alternatives
                skipAlternatives = hasAlternatives;

+              if(_config->FindB("APT::Get::Build-Dep-Automatic", false) == true)
+                 Cache->MarkAuto(Pkg, true);

                continue;
             }
             else if (hasAlternatives)
                continue;
             }
             else if (hasAlternatives)


@@ -2550,7 +2643,10 @@ bool DoBuildDep(CommandLine &CmdL)
       
       // Now we check the state of the packages,
       if (Cache->BrokenCount() != 0)
       
       // Now we check the state of the packages,
       if (Cache->BrokenCount() != 0)

-         return _error->Error(_("Build-dependencies for %s could not be satisfied."),*I);
+      {
+        ShowBroken(cout, Cache, false);
+        return _error->Error(_("Build-dependencies for %s could not be satisfied."),*I);
+      }

    }
   
    if (InstallPackages(Cache, false, true) == false)
    }
   
    if (InstallPackages(Cache, false, true) == false)


@@ -2581,8 +2677,8 @@ bool DoMoo(CommandLine &CmdL)
 /* */
 bool ShowHelp(CommandLine &CmdL)
 {
 /* */
 bool ShowHelp(CommandLine &CmdL)
 {

-   ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
-           COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
+   ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,VERSION,
+           COMMON_ARCH,__DATE__,__TIME__);

            
    if (_config->FindB("version") == true)
    {
            
    if (_config->FindB("version") == true)
    {


@@ -2640,7 +2736,8 @@ bool ShowHelp(CommandLine &CmdL)
       "   upgrade - Perform an upgrade\n"
       "   install - Install new packages (pkg is libc6 not libc6.deb)\n"
       "   remove - Remove packages\n"
       "   upgrade - Perform an upgrade\n"
       "   install - Install new packages (pkg is libc6 not libc6.deb)\n"
       "   remove - Remove packages\n"

-      "   purge - Remove and purge packages\n"
+      "   autoremove - Remove automatically all unused packages\n"
+      "   purge - Remove packages and config files\n"

       "   source - Download source archives\n"
       "   build-dep - Configure build-dependencies for source packages\n"
       "   dist-upgrade - Distribution upgrade, see apt-get(8)\n"
       "   source - Download source archives\n"
       "   build-dep - Configure build-dependencies for source packages\n"
       "   dist-upgrade - Distribution upgrade, see apt-get(8)\n"


@@ -2656,7 +2753,7 @@ bool ShowHelp(CommandLine &CmdL)
       "  -d  Download only - do NOT install or unpack archives\n"
       "  -s  No-act. Perform ordering simulation\n"
       "  -y  Assume Yes to all queries and do not prompt\n"
       "  -d  Download only - do NOT install or unpack archives\n"
       "  -s  No-act. Perform ordering simulation\n"
       "  -y  Assume Yes to all queries and do not prompt\n"

-      "  -f  Attempt to continue if the integrity check fails\n"
+      "  -f  Attempt to correct a system with broken dependencies in place\n"

       "  -m  Attempt to continue if archives are unlocatable\n"
       "  -u  Show a list of upgraded packages as well\n"
       "  -b  Build the source package after fetching it\n"
       "  -m  Attempt to continue if archives are unlocatable\n"
       "  -u  Show a list of upgraded packages as well\n"
       "  -b  Build the source package after fetching it\n"


@@ -2699,8 +2796,7 @@ void SigWinch(int)
 #endif
 }
                                                                        /*}}}*/
 #endif
 }
                                                                        /*}}}*/

-
-int main(int argc,const char *argv[])
+int main(int argc,const char *argv[])                                  /*{{{*/

 {
    CommandLine::Args Args[] = {
       {'h',"help","help",0},
 {
    CommandLine::Args Args[] = {
       {'h',"help","help",0},


@@ -2730,6 +2826,7 @@ int main(int argc,const char *argv[])
       {0,"force-yes","APT::Get::force-yes",0},
       {0,"print-uris","APT::Get::Print-URIs",0},
       {0,"diff-only","APT::Get::Diff-Only",0},
       {0,"force-yes","APT::Get::force-yes",0},
       {0,"print-uris","APT::Get::Print-URIs",0},
       {0,"diff-only","APT::Get::Diff-Only",0},

+      {0,"debian-only","APT::Get::Diff-Only",0},

       {0,"tar-only","APT::Get::Tar-Only",0},
       {0,"dsc-only","APT::Get::Dsc-Only",0},
       {0,"purge","APT::Get::Purge",0},
       {0,"tar-only","APT::Get::Tar-Only",0},
       {0,"dsc-only","APT::Get::Dsc-Only",0},
       {0,"purge","APT::Get::Purge",0},


@@ -2750,7 +2847,9 @@ int main(int argc,const char *argv[])
                                    {"upgrade",&DoUpgrade},
                                    {"install",&DoInstall},
                                    {"remove",&DoInstall},
                                    {"upgrade",&DoUpgrade},
                                    {"install",&DoInstall},
                                    {"remove",&DoInstall},

+                                   {"purge",&DoInstall},

                                   {"autoremove",&DoInstall},
                                   {"autoremove",&DoInstall},

+                                  {"purge",&DoInstall},

                                    {"dist-upgrade",&DoDistUpgrade},
                                    {"dselect-upgrade",&DoDSelectUpgrade},
                                   {"build-dep",&DoBuildDep},
                                    {"dist-upgrade",&DoDistUpgrade},
                                    {"dselect-upgrade",&DoDSelectUpgrade},
                                   {"build-dep",&DoBuildDep},


@@ -2787,7 +2886,19 @@ int main(int argc,const char *argv[])
       ShowHelp(CmdL);
       return 0;
    }
       ShowHelp(CmdL);
       return 0;
    }

-   
+
+   // simulate user-friendly if apt-get has no root privileges
+   if (getuid() != 0 && _config->FindB("APT::Get::Simulate") == true)
+   {
+      if (_config->FindB("APT::Get::Show-User-Simulation-Note",true) == true)
+        cout << _("NOTE: This is only a simulation!\n"
+           "      apt-get needs root privileges for real execution.\n"
+           "      Keep also in mind that locking is deactivated,\n"
+           "      so don't depend on the relevance to the real current situation!"
+        ) << std::endl;
+      _config->Set("Debug::NoLocking",true);
+   }
+

    // Deal with stdout not being a tty
    if (!isatty(STDOUT_FILENO) && _config->FindI("quiet",0) < 1)
       _config->Set("quiet","1");
    // Deal with stdout not being a tty
    if (!isatty(STDOUT_FILENO) && _config->FindI("quiet",0) < 1)
       _config->Set("quiet","1");


@@ -2819,3 +2930,4 @@ int main(int argc,const char *argv[])
    
    return 0;   
 }
    
    return 0;   
 }

+                                                                       /*}}}*/