Split ListParser::NewDepends into two methods to use these new method
[ntk/apt.git] / apt-pkg / pkgcachegen.cc
index c37f6f4..2a4a303 100644 (file)
@@ -18,6 +18,7 @@
 #include <apt-pkg/progress.h>
 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/configuration.h>
+#include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/sptr.h>
 #include <apt-pkg/pkgsystem.h>
@@ -38,7 +39,7 @@ typedef vector<pkgIndexFile *>::iterator FileIterator;
 
 // CacheGenerator::pkgCacheGenerator - Constructor                     /*{{{*/
 // ---------------------------------------------------------------------
-/* We set the diry flag and make sure that is written to the disk */
+/* We set the dirty flag and make sure that is written to the disk */
 pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) :
                    Map(*pMap), Cache(pMap,false), Progress(Prog),
                    FoundFileDeps(0)
@@ -506,21 +507,58 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
    return Description;
 }
                                                                        /*}}}*/
-// ListParser::NewDepends - Create a dependency element                        /*{{{*/
+// CacheGenerator::FinishCache - do various finish operations          /*{{{*/
+// ---------------------------------------------------------------------
+/* This prepares the Cache for delivery */
+bool pkgCacheGenerator::FinishCache(OpProgress &Progress) {
+       // FIXME: add progress reporting for this operation
+       // Do we have different architectures in your groups ?
+       vector<string> archs = APT::Configuration::getArchitectures();
+       if (archs.size() > 1) {
+               // Create Conflicts in between the group
+               for (pkgCache::GrpIterator G = GetCache().GrpBegin(); G.end() != true; G++) {
+                       string const PkgName = G.Name();
+                       for (pkgCache::PkgIterator P = G.PackageList(); P.end() != true; P = G.NextPkg(P)) {
+                               for (pkgCache::VerIterator V = P.VersionList(); V.end() != true; V++) {
+                                       // Arch all packages are "co-installable"
+                                       if (V->MultiArch == pkgCache::Version::All)
+                                               continue;
+                                       string const Arch = V.Arch();
+                                       map_ptrloc *OldDepLast = NULL;
+                                       for (vector<string>::const_iterator A = archs.begin(); A != archs.end(); ++A) {
+                                               if (*A == Arch)
+                                                       continue;
+                                               /* We allow only one installed arch at the time
+                                                  per group, therefore each group member conflicts
+                                                  with all other group members */
+                                               pkgCache::PkgIterator D = G.FindPkg(*A);
+                                               if (D.end() == true)
+                                                       continue;
+                                               // Conflicts: ${self}:other
+                                               NewDepends(D, V, "",
+                                                       pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts,
+                                                       OldDepLast);
+                                       }
+                               }
+                       }
+               }
+       }
+       return true;
+}
+                                                                       /*}}}*/
+// CacheGenerator::NewDepends - Create a dependency element            /*{{{*/
 // ---------------------------------------------------------------------
 /* This creates a dependency element in the tree. It is linked to the
    version and to the package that it is pointing to. */
-bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
-                                              const string &PackageName,
-                                              const string &Arch,
-                                              const string &Version,
-                                              unsigned int Op,
-                                              unsigned int Type)
+bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
+                                  pkgCache::VerIterator &Ver,
+                                  string const &Version,
+                                  unsigned int const &Op,
+                                  unsigned int const &Type,
+                                  map_ptrloc *OldDepLast)
 {
-   pkgCache &Cache = Owner->Cache;
-   
    // Get a structure
-   unsigned long const Dependency = Owner->Map.Allocate(sizeof(pkgCache::Dependency));
+   unsigned long const Dependency = Map.Allocate(sizeof(pkgCache::Dependency));
    if (unlikely(Dependency == 0))
       return false;
    
@@ -530,17 +568,6 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
    Dep->Type = Type;
    Dep->CompareOp = Op;
    Dep->ID = Cache.HeaderP->DependsCount++;
-   
-   pkgCache::GrpIterator Grp;
-   if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
-      return false;
-
-   // Locate the target package
-   pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch);
-   if (Pkg.end() == true) {
-      if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
-        return false;
-   }
 
    // Probe the reverse dependency list for a version string that matches
    if (Version.empty() == false)
@@ -549,29 +576,23 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
         if (I->Version != 0 && I.TargetVer() == Version)
            Dep->Version = I->Version;*/
       if (Dep->Version == 0)
-        if (unlikely((Dep->Version = WriteString(Version)) == 0))
+        if (unlikely((Dep->Version = Map.WriteString(Version)) == 0))
            return false;
    }
-      
+
    // Link it to the package
    Dep->Package = Pkg.Index();
    Dep->NextRevDepends = Pkg->RevDepends;
    Pkg->RevDepends = Dep.Index();
-   
-   /* Link it to the version (at the end of the list)
-      Caching the old end point speeds up generation substantially */
-   if (OldDepVer != Ver)
+
+   // Do we know where to link the Dependency to?
+   if (OldDepLast == NULL)
    {
       OldDepLast = &Ver->DependsList;
       for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
         OldDepLast = &D->NextDepends;
-      OldDepVer = Ver;
    }
 
-   // Is it a file dependency?
-   if (unlikely(PackageName[0] == '/'))
-      FoundFileDeps = true;
-   
    Dep->NextDepends = *OldDepLast;
    *OldDepLast = Dep.Index();
    OldDepLast = &Dep->NextDepends;
@@ -579,6 +600,41 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
    return true;
 }
                                                                        /*}}}*/
+// ListParser::NewDepends - Create the environment for a new dependency        /*{{{*/
+// ---------------------------------------------------------------------
+/* This creates a Group and the Package to link this dependency to if
+   needed and handles also the caching of the old endpoint */
+bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver,
+                                              const string &PackageName,
+                                              const string &Arch,
+                                              const string &Version,
+                                              unsigned int Op,
+                                              unsigned int Type)
+{
+   pkgCache::GrpIterator Grp;
+   if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
+      return false;
+
+   // Locate the target package
+   pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch);
+   if (Pkg.end() == true) {
+      if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
+        return false;
+   }
+
+   // Is it a file dependency?
+   if (unlikely(PackageName[0] == '/'))
+      FoundFileDeps = true;
+
+   /* Caching the old end point speeds up generation substantially */
+   if (OldDepVer != Ver) {
+      OldDepLast = NULL;
+      OldDepVer = Ver;
+   }
+
+   return Owner->NewDepends(Pkg, Ver, Version, Op, Type, OldDepLast);
+}
+                                                                       /*}}}*/
 // ListParser::NewProvides - Create a Provides element                 /*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -925,6 +981,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                     Files.begin()+EndOfSource,Files.end()) == false)
         return false;
+
+      // FIXME: move me to a better place
+      Gen.FinishCache(Progress);
    }
    else
    {
@@ -965,6 +1024,9 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress,
       if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                     Files.begin()+EndOfSource,Files.end()) == false)
         return false;
+
+      // FIXME: move me to a better place
+      Gen.FinishCache(Progress);
    }
 
    if (_error->PendingError() == true)
@@ -1010,7 +1072,10 @@ bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap)
    if (BuildCache(Gen,Progress,CurrentSize,TotalSize,
                  Files.begin()+EndOfSource,Files.end()) == false)
       return false;
-   
+
+   // FIXME: move me to a better place
+   Gen.FinishCache(Progress);
+
    if (_error->PendingError() == true)
       return false;
    *OutMap = Map.UnGuard();