make GetLocalitySortedVersionSet more generic

No reason in and of by itself at the moment, but prepares for the goal
of having 'apt search' and 'apt-cache search' using the same code now
that they at least support the same stuff. The 'apt' code is just a
multitude slower at the moment…

Git-Dch: Ignore

1 files changed, 46 insertions, 43 deletions

diff --git a/apt-private/private-cacheset.cc b/apt-private/private-cacheset.cc
index e37e7b227..eb77be274 100644
--- a/apt-private/private-cacheset.cc
+++ b/apt-private/private-cacheset.cc
@@ -14,74 +14,77 @@
 
 #include <apti18n.h>
 
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                 LocalitySortedVersionSet &output_set,
-                                 OpProgress &progress)
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                 APT::VersionContainerInterface * const vci,
+                                 OpProgress * const progress)
 {
     Matcher null_matcher = Matcher();
-    return GetLocalitySortedVersionSet(CacheFile, output_set, 
+    return GetLocalitySortedVersionSet(CacheFile, vci,
                                        null_matcher, progress);
 }
 
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                 LocalitySortedVersionSet &output_set,
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                 APT::VersionContainerInterface * const vci,
                                  Matcher &matcher,
-                                 OpProgress &progress)
+                                 OpProgress * const progress)
 {
    pkgCache *Cache = CacheFile.GetPkgCache();
    pkgDepCache *DepCache = CacheFile.GetDepCache();
+   APT::CacheSetHelper helper(false);
 
    int Done=0;
-   progress.SubProgress(Cache->Head().PackageCount, _("Sorting"));
+   if (progress != NULL)
+      progress->SubProgress(Cache->Head().PackageCount, _("Sorting"));
+
+   bool const insertCurrentVer = _config->FindB("APT::Cmd::Installed", false);
+   bool const insertUpgradable = _config->FindB("APT::Cmd::Upgradable", false);
+   bool const insertManualInstalled = _config->FindB("APT::Cmd::Manual-Installed", false);
+
    for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
    {
-      if (Done%500 == 0)
-         progress.Progress(Done);
-      Done++;
+      if (progress != NULL)
+      {
+	 if (Done % 500 == 0)
+	    progress->Progress(Done);
+	 ++Done;
+      }
+
+      // exclude virtual pkgs
+      if (P->VersionList == 0)
+	 continue;
 
       if ((matcher)(P) == false)
-         continue;
+	 continue;
 
-      // exclude virtual pkgs
-      if (P.VersionList() == 0)
-         continue;
       pkgDepCache::StateCache &state = (*DepCache)[P];
-      if (_config->FindB("APT::Cmd::Installed") == true)
+      if (insertCurrentVer == true)
       {
-         if (P.CurrentVer() != NULL)
-         {
-            output_set.insert(P.CurrentVer());
-         }
+	 if (P->CurrentVer != 0)
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::INSTALLED, helper);
       }
-      else if (_config->FindB("APT::Cmd::Upgradable") == true)
+      else if (insertUpgradable == true)
       {
-         if(P.CurrentVer() && state.Upgradable())
-         {
-             pkgPolicy *policy = CacheFile.GetPolicy();
-             output_set.insert(policy->GetCandidateVer(P));
-         }
+	 if(P.CurrentVer() && state.Upgradable())
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper);
       }
-      else if (_config->FindB("APT::Cmd::Manual-Installed") == true)
+      else if (insertManualInstalled == true)
       {
-         if (P.CurrentVer() && 
-             ((*DepCache)[P].Flags & pkgCache::Flag::Auto) == false)
-         {
-             pkgPolicy *policy = CacheFile.GetPolicy();
-             output_set.insert(policy->GetCandidateVer(P));
-         }
+	 if (P.CurrentVer() &&
+	       ((*DepCache)[P].Flags & pkgCache::Flag::Auto) == false)
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper);
       }
-      else 
+      else
       {
-         pkgPolicy *policy = CacheFile.GetPolicy();
-         if (policy->GetCandidateVer(P).IsGood())
-            output_set.insert(policy->GetCandidateVer(P));
-         else 
-            // no candidate, this may happen for packages in 
-            // dpkg "deinstall ok config-file" state - we pick the first ver
-            // (which should be the only one)
-            output_set.insert(P.VersionList());
+         if (vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper) == false)
+	 {
+	    // no candidate, this may happen for packages in
+	    // dpkg "deinstall ok config-file" state - we pick the first ver
+	    // (which should be the only one)
+	    vci->insert(P.VersionList());
+	 }
       }
    }
-   progress.Done();
+   if (progress != NULL)
+      progress->Done();
    return true;
 }