+ if (_error->PendingError() == true)
+ break;
+ }
+
+ delete [] Buffer;
+ delete [] VFList;
+ return !_error->PendingError();
+}
+ /*}}}*/
+// xvcg - Generate a graph for xvcg /*{{{*/
+// ---------------------------------------------------------------------
+// Code contributed from Junichi Uekawa <dancer@debian.org> on 20 June 2002.
+
+static bool XVcg(CommandLine &CmdL)
+{
+ pkgCacheFile CacheFile;
+ pkgCache *Cache = CacheFile.GetPkgCache();
+ if (unlikely(Cache == NULL))
+ return false;
+
+ bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",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;
+ }
+ }
+
+ // 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)
+ {
+ Show[Pkg->ID] = ToShow;
+ Flags[Pkg->ID] |= ForceNR;
+ }
+
+ // 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)